./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5363944058b659dbd3bc63f3b9b4bc7dafd036bb ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:26:42,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:26:42,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:26:42,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:26:42,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:26:43,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:26:43,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:26:43,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:26:43,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:26:43,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:26:43,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:26:43,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:26:43,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:26:43,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:26:43,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:26:43,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:26:43,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:26:43,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:26:43,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:26:43,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:26:43,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:26:43,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:26:43,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:26:43,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:26:43,046 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:26:43,046 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:26:43,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:26:43,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:26:43,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:26:43,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:26:43,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:26:43,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:26:43,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:26:43,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:26:43,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:26:43,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:26:43,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:26:43,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:26:43,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:26:43,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:26:43,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:26:43,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:26:43,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:26:43,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:26:43,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:26:43,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:26:43,069 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:26:43,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:26:43,069 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:26:43,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:26:43,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:26:43,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:26:43,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:26:43,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:26:43,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:26:43,071 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:26:43,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:26:43,071 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:26:43,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:26:43,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:26:43,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:26:43,072 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:26:43,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:26:43,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:26:43,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:26:43,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:26:43,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:26:43,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:26:43,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:26:43,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:26:43,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5363944058b659dbd3bc63f3b9b4bc7dafd036bb [2019-11-20 10:26:43,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:26:43,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:26:43,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:26:43,233 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:26:43,233 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:26:43,234 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/../../sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2019-11-20 10:26:43,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/data/e7fb93aec/62a2af3f552e409fbeb808d0866ae76b/FLAG21fbb4942 [2019-11-20 10:26:43,721 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:26:43,721 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/sv-benchmarks/c/pthread-divine/condvar_spurious_wakeup.i [2019-11-20 10:26:43,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/data/e7fb93aec/62a2af3f552e409fbeb808d0866ae76b/FLAG21fbb4942 [2019-11-20 10:26:44,021 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/data/e7fb93aec/62a2af3f552e409fbeb808d0866ae76b [2019-11-20 10:26:44,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:26:44,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:26:44,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:26:44,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:26:44,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:26:44,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532bddec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44, skipping insertion in model container [2019-11-20 10:26:44,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,043 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:26:44,103 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:26:44,394 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-20 10:26:44,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:26:44,630 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:26:44,646 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-20 10:26:44,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:26:44,734 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:26:44,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44 WrapperNode [2019-11-20 10:26:44,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:26:44,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:26:44,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:26:44,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:26:44,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:26:44,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:26:44,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:26:44,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:26:44,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... [2019-11-20 10:26:44,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:26:44,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:26:44,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:26:44,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:26:44,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/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 [2019-11-20 10:26:44,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:26:44,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:26:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-20 10:26:44,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:26:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:26:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 10:26:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-20 10:26:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-20 10:26:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:26:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:26:44,888 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 10:26:45,230 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:26:45,230 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 10:26:45,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:26:45 BoogieIcfgContainer [2019-11-20 10:26:45,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:26:45,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:26:45,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:26:45,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:26:45,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:26:44" (1/3) ... [2019-11-20 10:26:45,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7167c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:26:45, skipping insertion in model container [2019-11-20 10:26:45,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:26:44" (2/3) ... [2019-11-20 10:26:45,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7167c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:26:45, skipping insertion in model container [2019-11-20 10:26:45,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:26:45" (3/3) ... [2019-11-20 10:26:45,238 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2019-11-20 10:26:45,275 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,275 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,276 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,276 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,276 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,277 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,277 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,277 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,278 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,278 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,278 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,279 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,279 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,279 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,279 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,280 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,280 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,280 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,281 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,281 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,281 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,282 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,282 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,282 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,282 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,283 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,283 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,283 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,284 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,284 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:26:45,307 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 10:26:45,307 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:26:45,313 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 10:26:45,322 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 10:26:45,339 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:26:45,339 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:26:45,339 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:26:45,339 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:26:45,339 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:26:45,339 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:26:45,340 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:26:45,340 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:26:45,350 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 85 places, 84 transitions [2019-11-20 10:26:45,406 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 382 states. [2019-11-20 10:26:45,409 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states. [2019-11-20 10:26:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 10:26:45,419 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:26:45,419 INFO L410 BasicCegarLoop]: 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] [2019-11-20 10:26:45,420 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:26:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:26:45,425 INFO L82 PathProgramCache]: Analyzing trace with hash -694474805, now seen corresponding path program 1 times [2019-11-20 10:26:45,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:26:45,431 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865528953] [2019-11-20 10:26:45,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:26:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:26:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:26:45,620 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:26:45,621 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 10:26:45,660 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 10:26:45,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:26:45 BasicIcfg [2019-11-20 10:26:45,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:26:45,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:26:45,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:26:45,663 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:26:45,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:26:45" (3/4) ... [2019-11-20 10:26:45,665 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 10:26:45,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f3c1e766-85fd-46f9-8a49-0919da51f726/bin/uautomizer/witness.graphml [2019-11-20 10:26:45,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:26:45,733 INFO L168 Benchmark]: Toolchain (without parser) took 1707.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -103.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,733 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:26:45,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,735 INFO L168 Benchmark]: Boogie Preprocessor took 27.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:26:45,736 INFO L168 Benchmark]: RCFGBuilder took 423.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,736 INFO L168 Benchmark]: TraceAbstraction took 429.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,737 INFO L168 Benchmark]: Witness Printer took 67.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:26:45,740 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 709.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 423.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 429.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 67.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L686] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L687] 0 pthread_cond_t cond; VAL [cond={5:0}, lock={3:0}] [L688] 0 int x; VAL [cond={5:0}, lock={3:0}, x=0] [L698] 0 pthread_t t; VAL [cond={5:0}, lock={3:0}, x=0] [L701] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={5:0}, lock={3:0}, x=0] [L693] 1 !(x == 42) ? __VERIFIER_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={5:0}, lock={3:0}, x=0] [L693] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, cond={5:0}, lock={3:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 92 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.3s, 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=382occurred 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, 33 NumberOfCodeBlocks, 33 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...