/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 11:20:26,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 11:20:26,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 11:20:26,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 11:20:26,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 11:20:26,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 11:20:26,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 11:20:26,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 11:20:26,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 11:20:26,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 11:20:26,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 11:20:26,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 11:20:26,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 11:20:26,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 11:20:26,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 11:20:26,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 11:20:26,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 11:20:26,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 11:20:26,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 11:20:26,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 11:20:26,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 11:20:26,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 11:20:26,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 11:20:26,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 11:20:26,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 11:20:26,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 11:20:26,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 11:20:26,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 11:20:26,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 11:20:26,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 11:20:26,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 11:20:26,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 11:20:26,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 11:20:26,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 11:20:26,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 11:20:26,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 11:20:26,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 11:20:26,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 11:20:26,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 11:20:26,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 11:20:26,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 11:20:26,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 11:20:26,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 11:20:26,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 11:20:26,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 11:20:26,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 11:20:26,257 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 11:20:26,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 11:20:26,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 11:20:26,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 11:20:26,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 11:20:26,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 11:20:26,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 11:20:26,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 11:20:26,259 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 11:20:26,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 11:20:26,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 11:20:26,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 11:20:26,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 11:20:26,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 11:20:26,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 11:20:26,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 11:20:26,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 11:20:26,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 11:20:26,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 11:20:26,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 11:20:26,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 11:20:26,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 11:20:26,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 11:20:26,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 11:20:26,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 11:20:26,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 11:20:26,791 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 11:20:26,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2020-12-22 11:20:26,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b8d5d7a4/9e25dd1de7f24cdbbc58d4cb94cae6a4/FLAG1402d8f5d [2020-12-22 11:20:27,672 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 11:20:27,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2020-12-22 11:20:27,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b8d5d7a4/9e25dd1de7f24cdbbc58d4cb94cae6a4/FLAG1402d8f5d [2020-12-22 11:20:27,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b8d5d7a4/9e25dd1de7f24cdbbc58d4cb94cae6a4 [2020-12-22 11:20:27,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 11:20:27,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 11:20:27,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 11:20:27,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 11:20:27,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 11:20:27,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:20:27" (1/1) ... [2020-12-22 11:20:27,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0d15ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:27, skipping insertion in model container [2020-12-22 11:20:27,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:20:27" (1/1) ... [2020-12-22 11:20:27,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 11:20:28,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 11:20:28,172 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 11:20:28,433 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2020-12-22 11:20:28,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:20:28,462 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 11:20:28,478 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 11:20:28,503 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2020-12-22 11:20:28,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 11:20:28,671 INFO L208 MainTranslator]: Completed translation [2020-12-22 11:20:28,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28 WrapperNode [2020-12-22 11:20:28,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 11:20:28,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 11:20:28,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 11:20:28,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 11:20:28,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 11:20:28,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 11:20:28,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 11:20:28,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 11:20:28,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (1/1) ... [2020-12-22 11:20:28,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 11:20:28,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 11:20:28,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 11:20:28,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 11:20:28,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (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 [2020-12-22 11:20:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 11:20:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 11:20:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-22 11:20:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 11:20:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 11:20:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 11:20:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2020-12-22 11:20:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2020-12-22 11:20:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 11:20:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 11:20:28,974 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 11:20:29,399 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 11:20:29,400 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-22 11:20:29,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:20:29 BoogieIcfgContainer [2020-12-22 11:20:29,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 11:20:29,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 11:20:29,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 11:20:29,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 11:20:29,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:20:27" (1/3) ... [2020-12-22 11:20:29,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3e941e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:20:29, skipping insertion in model container [2020-12-22 11:20:29,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:20:28" (2/3) ... [2020-12-22 11:20:29,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3e941e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:20:29, skipping insertion in model container [2020-12-22 11:20:29,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:20:29" (3/3) ... [2020-12-22 11:20:29,414 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2020-12-22 11:20:29,423 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 11:20:29,423 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 11:20:29,429 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 11:20:29,431 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 11:20:29,468 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,468 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,469 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,469 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,469 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,470 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,470 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,470 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,470 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,471 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,471 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,478 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,479 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 11:20:29,489 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-22 11:20:29,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 11:20:29,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 11:20:29,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 11:20:29,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 11:20:29,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 11:20:29,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 11:20:29,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 11:20:29,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 11:20:29,550 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 11:20:29,584 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 11:20:29,586 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 65 transitions, 138 flow [2020-12-22 11:20:29,591 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 65 transitions, 138 flow [2020-12-22 11:20:29,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 138 flow [2020-12-22 11:20:29,688 INFO L129 PetriNetUnfolder]: 3/64 cut-off events. [2020-12-22 11:20:29,689 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-12-22 11:20:29,700 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. [2020-12-22 11:20:29,705 INFO L116 LiptonReduction]: Number of co-enabled transitions 260 [2020-12-22 11:20:32,502 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 11:20:32,757 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-12-22 11:20:33,654 WARN L197 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-12-22 11:20:33,833 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 11:20:34,249 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-12-22 11:20:34,431 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-12-22 11:20:35,153 WARN L197 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2020-12-22 11:20:35,483 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-12-22 11:20:36,145 WARN L197 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2020-12-22 11:20:36,467 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-12-22 11:20:36,469 INFO L131 LiptonReduction]: Checked pairs total: 269 [2020-12-22 11:20:36,469 INFO L133 LiptonReduction]: Total number of compositions: 64 [2020-12-22 11:20:36,479 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 13 places, 10 transitions, 28 flow [2020-12-22 11:20:36,487 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 13 states. [2020-12-22 11:20:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-22 11:20:36,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-22 11:20:36,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 11:20:36,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-22 11:20:36,498 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-12-22 11:20:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 11:20:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash 248218, now seen corresponding path program 1 times [2020-12-22 11:20:36,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 11:20:36,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101156216] [2020-12-22 11:20:36,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 11:20:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:20:36,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:20:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 11:20:36,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 11:20:36,850 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 11:20:36,851 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 11:20:36,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 11:20:36,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:20:36 BasicIcfg [2020-12-22 11:20:36,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 11:20:36,878 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 11:20:36,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 11:20:36,878 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 11:20:36,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:20:29" (3/4) ... [2020-12-22 11:20:36,881 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 11:20:36,927 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-divine/condvar_spurious_wakeup.i-witness.graphml [2020-12-22 11:20:36,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 11:20:36,929 INFO L168 Benchmark]: Toolchain (without parser) took 8989.67 ms. Allocated memory was 158.3 MB in the beginning and 234.9 MB in the end (delta: 76.5 MB). Free memory was 132.1 MB in the beginning and 211.5 MB in the end (delta: -79.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:20:36,929 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 158.3 MB. Free memory is still 130.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:20:36,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.78 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 136.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-12-22 11:20:36,931 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.80 ms. Allocated memory is still 158.3 MB. Free memory was 136.7 MB in the beginning and 135.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 11:20:36,932 INFO L168 Benchmark]: Boogie Preprocessor took 64.45 ms. Allocated memory is still 158.3 MB. Free memory was 135.1 MB in the beginning and 133.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:20:36,932 INFO L168 Benchmark]: RCFGBuilder took 553.59 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 112.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 11:20:36,933 INFO L168 Benchmark]: TraceAbstraction took 7472.23 ms. Allocated memory was 158.3 MB in the beginning and 234.9 MB in the end (delta: 76.5 MB). Free memory was 111.5 MB in the beginning and 213.1 MB in the end (delta: -101.5 MB). Peak memory consumption was 107.6 MB. Max. memory is 8.0 GB. [2020-12-22 11:20:36,934 INFO L168 Benchmark]: Witness Printer took 49.57 ms. Allocated memory is still 234.9 MB. Free memory was 213.1 MB in the beginning and 211.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 11:20:36,938 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 158.3 MB. Free memory is still 130.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 731.78 ms. Allocated memory is still 158.3 MB. Free memory was 131.9 MB in the beginning and 136.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.80 ms. Allocated memory is still 158.3 MB. Free memory was 136.7 MB in the beginning and 135.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.45 ms. Allocated memory is still 158.3 MB. Free memory was 135.1 MB in the beginning and 133.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 553.59 ms. Allocated memory is still 158.3 MB. Free memory was 133.5 MB in the beginning and 112.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7472.23 ms. Allocated memory was 158.3 MB in the beginning and 234.9 MB in the end (delta: 76.5 MB). Free memory was 111.5 MB in the beginning and 213.1 MB in the end (delta: -101.5 MB). Peak memory consumption was 107.6 MB. Max. memory is 8.0 GB. * Witness Printer took 49.57 ms. Allocated memory is still 234.9 MB. Free memory was 213.1 MB in the beginning and 211.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 173 VarBasedMoverChecksPositive, 5 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 5 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.8s, 66 PlacesBefore, 13 PlacesAfterwards, 65 TransitionsBefore, 10 TransitionsAfterwards, 260 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 269 MoverChecksTotal - 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; [L698] 0 pthread_cond_t cond; [L699] 0 int x; [L709] 0 pthread_t t; [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={7:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={7:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, 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, 0.1s 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...