./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fcaf98e9698415fefa37f25d310a7a516d84123 ................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-01 21:53:35,924 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 21:53:35,925 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 21:53:35,931 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 21:53:35,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 21:53:35,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 21:53:35,932 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 21:53:35,933 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 21:53:35,934 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 21:53:35,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 21:53:35,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 21:53:35,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 21:53:35,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 21:53:35,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 21:53:35,936 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 21:53:35,937 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 21:53:35,937 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 21:53:35,938 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 21:53:35,939 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 21:53:35,940 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 21:53:35,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 21:53:35,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 21:53:35,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 21:53:35,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 21:53:35,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 21:53:35,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 21:53:35,943 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 21:53:35,944 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 21:53:35,944 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 21:53:35,945 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 21:53:35,945 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 21:53:35,945 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 21:53:35,946 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 21:53:35,946 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 21:53:35,946 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 21:53:35,947 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 21:53:35,947 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-12-01 21:53:35,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 21:53:35,954 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 21:53:35,955 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 21:53:35,955 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 21:53:35,955 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 21:53:35,955 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 21:53:35,955 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 21:53:35,956 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 21:53:35,957 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 21:53:35,957 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 21:53:35,957 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 21:53:35,958 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 21:53:35,958 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak 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 -> Kojak 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 -> 5fcaf98e9698415fefa37f25d310a7a516d84123 [2018-12-01 21:53:35,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 21:53:35,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 21:53:35,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 21:53:35,985 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 21:53:35,985 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 21:53:35,985 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/../../sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-12-01 21:53:36,020 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/data/1f82f1293/6c1f4bee94354094b07637d394cebbbf/FLAGa4af10b36 [2018-12-01 21:53:36,377 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 21:53:36,378 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/sv-benchmarks/c/ldv-regression/mutex_lock_struct_true-termination.c_false-unreach-call.i [2018-12-01 21:53:36,381 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/data/1f82f1293/6c1f4bee94354094b07637d394cebbbf/FLAGa4af10b36 [2018-12-01 21:53:36,771 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/data/1f82f1293/6c1f4bee94354094b07637d394cebbbf [2018-12-01 21:53:36,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 21:53:36,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 21:53:36,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 21:53:36,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 21:53:36,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 21:53:36,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff7353e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36, skipping insertion in model container [2018-12-01 21:53:36,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 21:53:36,802 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 21:53:36,887 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 21:53:36,893 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 21:53:36,901 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 21:53:36,909 INFO L195 MainTranslator]: Completed translation [2018-12-01 21:53:36,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36 WrapperNode [2018-12-01 21:53:36,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 21:53:36,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 21:53:36,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 21:53:36,911 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 21:53:36,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 21:53:36,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 21:53:36,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 21:53:36,932 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 21:53:36,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... [2018-12-01 21:53:36,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 21:53:36,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 21:53:36,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 21:53:36,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 21:53:36,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:53:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-12-01 21:53:37,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 21:53:37,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 21:53:37,003 INFO L130 BoogieDeclarations]: Found specification of procedure err [2018-12-01 21:53:37,003 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2018-12-01 21:53:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2018-12-01 21:53:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2018-12-01 21:53:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 21:53:37,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 21:53:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 21:53:37,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 21:53:37,111 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 21:53:37,111 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-01 21:53:37,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:53:37 BoogieIcfgContainer [2018-12-01 21:53:37,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 21:53:37,112 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 21:53:37,112 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 21:53:37,119 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 21:53:37,119 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:53:37" (1/1) ... [2018-12-01 21:53:37,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 21:53:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 21:53:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-12-01 21:53:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-12-01 21:53:37,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 21:53:37,152 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 21:53:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 21:53:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 21:53:37,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 21:53:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 15 transitions. [2018-12-01 21:53:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-01 21:53:37,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-01 21:53:37,303 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 21:53:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:53:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:53:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:53:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 21:53:37,352 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2018-12-01 21:53:37,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 09:53:37 ImpRootNode [2018-12-01 21:53:37,375 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 21:53:37,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 21:53:37,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 21:53:37,375 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 21:53:37,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:53:37" (3/4) ... [2018-12-01 21:53:37,377 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-01 21:53:37,401 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_796b9e38-e29e-4be7-ad45-28ee45bf1f8a/bin-2019/ukojak/witness.graphml [2018-12-01 21:53:37,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 21:53:37,402 INFO L168 Benchmark]: Toolchain (without parser) took 627.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -101.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,402 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 21:53:37,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.92 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 21:53:37,403 INFO L168 Benchmark]: Boogie Preprocessor took 11.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,404 INFO L168 Benchmark]: RCFGBuilder took 168.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,404 INFO L168 Benchmark]: CodeCheck took 262.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,404 INFO L168 Benchmark]: Witness Printer took 26.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 21:53:37,406 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 18 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L33] struct mutex m; [L34] m.is_locked = 0 [L36] CALL mutex_lock(&m) VAL [a={2:0}] [L21] EXPR a->is_locked VAL [a={2:0}, a={2:0}, a->is_locked=0] [L21] COND FALSE !(a->is_locked == 1) [L22] a->is_locked = 1 [L36] RET mutex_lock(&m) [L40] CALL mutex_lock(&m) VAL [a={2:0}] [L21] EXPR a->is_locked VAL [a={2:0}, a={2:0}, a->is_locked=1] [L21] COND TRUE a->is_locked == 1 [L21] CALL err() [L13] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.92 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.35 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * CodeCheck took 262.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Witness Printer took 26.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...