./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread/sigma_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/sigma_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 574df94a903166a1b27be7d989c6ac88f507ceb5 .................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/sigma_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 574df94a903166a1b27be7d989c6ac88f507ceb5 ............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:12:17,728 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:12:17,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:12:17,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:12:17,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:12:17,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:12:17,742 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:12:17,744 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:12:17,745 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:12:17,746 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:12:17,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:12:17,747 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:12:17,748 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:12:17,749 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:12:17,750 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:12:17,751 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:12:17,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:12:17,754 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:12:17,756 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:12:17,757 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:12:17,758 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:12:17,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:12:17,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:12:17,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:12:17,772 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:12:17,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:12:17,773 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:12:17,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:12:17,777 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:12:17,779 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:12:17,781 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:12:17,781 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:12:17,781 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:12:17,782 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:12:17,784 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:12:17,785 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:12:17,785 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 05:12:17,803 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:12:17,804 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:12:17,805 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:12:17,806 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:12:17,806 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:12:17,806 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:12:17,806 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:12:17,806 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:12:17,807 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:12:17,807 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:12:17,807 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:12:17,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:12:17,808 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:12:17,809 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:12:17,809 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:12:17,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:12:17,809 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:12:17,809 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:12:17,809 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:12:17,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:12:17,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:12:17,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:12:17,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:12:17,811 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:12:17,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:12:17,811 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:12:17,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:12:17,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:12:17,812 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:12:17,812 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan 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 -> Taipan 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 -> 574df94a903166a1b27be7d989c6ac88f507ceb5 [2018-10-27 05:12:17,858 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:12:17,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:12:17,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:12:17,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:12:17,873 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:12:17,874 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/../../sv-benchmarks/c/pthread/sigma_false-unreach-call.i [2018-10-27 05:12:17,930 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/6b72ef6d2/8eefbb332b7a4a23bafc234ccecc282e/FLAGd11d4f1bc [2018-10-27 05:12:18,374 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:12:18,375 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/sv-benchmarks/c/pthread/sigma_false-unreach-call.i [2018-10-27 05:12:18,404 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/6b72ef6d2/8eefbb332b7a4a23bafc234ccecc282e/FLAGd11d4f1bc [2018-10-27 05:12:18,417 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/6b72ef6d2/8eefbb332b7a4a23bafc234ccecc282e [2018-10-27 05:12:18,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:12:18,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:12:18,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:12:18,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:12:18,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:12:18,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:12:18" (1/1) ... [2018-10-27 05:12:18,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@140b3a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:18, skipping insertion in model container [2018-10-27 05:12:18,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:12:18" (1/1) ... [2018-10-27 05:12:18,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:12:18,491 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:12:19,015 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:12:19,028 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:12:19,072 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:12:19,218 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:12:19,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19 WrapperNode [2018-10-27 05:12:19,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:12:19,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:12:19,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:12:19,220 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:12:19,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:12:19,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:12:19,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:12:19,380 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:12:19,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... [2018-10-27 05:12:19,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:12:19,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:12:19,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:12:19,435 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:12:19,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/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 [2018-10-27 05:12:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:12:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:12:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 05:12:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 05:12:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:12:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:12:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2018-10-27 05:12:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2018-10-27 05:12:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:12:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:12:19,519 WARN L200 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-10-27 05:12:20,301 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:12:20,326 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:20,326 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:20,327 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:20,327 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:20,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:12:20 BasicIcfg [2018-10-27 05:12:20,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:12:20,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:12:20,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:12:20,351 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:12:20,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:12:18" (1/3) ... [2018-10-27 05:12:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad7a442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:12:20, skipping insertion in model container [2018-10-27 05:12:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:19" (2/3) ... [2018-10-27 05:12:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ad7a442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:12:20, skipping insertion in model container [2018-10-27 05:12:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:12:20" (3/3) ... [2018-10-27 05:12:20,354 INFO L112 eAbstractionObserver]: Analyzing ICFG sigma_false-unreach-call.i_BEv2 [2018-10-27 05:12:20,362 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:12:20,369 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-10-27 05:12:20,382 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-10-27 05:12:20,410 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:12:20,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:12:20,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:12:20,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:12:20,411 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:12:20,411 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:12:20,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:12:20,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:12:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-10-27 05:12:20,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-27 05:12:20,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:12:20,440 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:12:20,442 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0INUSE_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:12:20,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:12:20,448 INFO L82 PathProgramCache]: Analyzing trace with hash -275450149, now seen corresponding path program 1 times [2018-10-27 05:12:20,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:12:20,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:12:20,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:12:20,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:12:20,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:12:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:12:20,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:12:20,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:12:20,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:12:20,698 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:12:20,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 05:12:20,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 05:12:20,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:12:20,721 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-10-27 05:12:20,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 05:12:20,750 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 05:12:20,761 INFO L168 Benchmark]: Toolchain (without parser) took 2338.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -123.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,769 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:12:20,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 884.7 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 159.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 884.7 MB in the beginning and 1.1 GB in the end (delta: -257.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,771 INFO L168 Benchmark]: Boogie Preprocessor took 55.00 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,771 INFO L168 Benchmark]: RCFGBuilder took 912.54 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: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,772 INFO L168 Benchmark]: TraceAbstraction took 412.23 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:20,779 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 794.92 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 884.7 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 159.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 884.7 MB in the beginning and 1.1 GB in the end (delta: -257.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.00 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 912.54 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: 39.2 MB). Peak memory consumption was 39.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 412.23 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: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:12:22,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:12:22,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:12:22,827 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:12:22,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:12:22,828 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:12:22,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:12:22,835 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:12:22,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:12:22,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:12:22,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:12:22,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:12:22,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:12:22,840 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:12:22,841 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:12:22,842 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:12:22,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:12:22,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:12:22,849 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:12:22,853 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:12:22,854 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:12:22,855 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:12:22,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:12:22,859 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:12:22,859 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:12:22,860 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:12:22,861 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:12:22,862 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:12:22,865 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:12:22,866 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:12:22,866 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:12:22,867 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:12:22,867 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:12:22,867 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:12:22,868 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:12:22,868 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:12:22,869 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 05:12:22,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:12:22,891 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:12:22,892 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:12:22,892 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:12:22,892 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:12:22,893 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:12:22,893 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:12:22,893 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:12:22,893 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:12:22,894 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 05:12:22,894 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 05:12:22,894 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:12:22,894 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:12:22,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:12:22,895 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:12:22,895 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:12:22,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:12:22,896 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:12:22,897 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:12:22,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:12:22,897 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:12:22,897 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:12:22,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:12:22,897 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 05:12:22,898 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:12:22,898 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 05:12:22,898 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 05:12:22,898 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_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan 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 -> Taipan 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 -> 574df94a903166a1b27be7d989c6ac88f507ceb5 [2018-10-27 05:12:22,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:12:22,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:12:22,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:12:22,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:12:22,979 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:12:22,980 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/../../sv-benchmarks/c/pthread/sigma_false-unreach-call.i [2018-10-27 05:12:23,035 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/32171ff83/052a2dad0a904d6da8e0c164335b4992/FLAGfa51ef96f [2018-10-27 05:12:23,536 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:12:23,537 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/sv-benchmarks/c/pthread/sigma_false-unreach-call.i [2018-10-27 05:12:23,560 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/32171ff83/052a2dad0a904d6da8e0c164335b4992/FLAGfa51ef96f [2018-10-27 05:12:23,572 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/data/32171ff83/052a2dad0a904d6da8e0c164335b4992 [2018-10-27 05:12:23,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:12:23,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:12:23,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:12:23,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:12:23,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:12:23,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:12:23" (1/1) ... [2018-10-27 05:12:23,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41dcc8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:23, skipping insertion in model container [2018-10-27 05:12:23,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:12:23" (1/1) ... [2018-10-27 05:12:23,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:12:23,644 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:12:24,202 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:12:24,216 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:12:24,274 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:12:24,440 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:12:24,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24 WrapperNode [2018-10-27 05:12:24,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:12:24,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:12:24,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:12:24,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:12:24,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:12:24,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:12:24,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:12:24,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:12:24,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... [2018-10-27 05:12:24,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:12:24,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:12:24,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:12:24,645 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:12:24,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/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 [2018-10-27 05:12:24,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:12:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:12:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 05:12:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 05:12:24,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:12:24,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:12:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2018-10-27 05:12:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2018-10-27 05:12:24,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:12:24,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:12:24,728 WARN L200 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-10-27 05:12:25,533 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:12:25,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:25,560 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:25,560 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:25,561 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 05:12:25,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:12:25 BasicIcfg [2018-10-27 05:12:25,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:12:25,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:12:25,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:12:25,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:12:25,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:12:23" (1/3) ... [2018-10-27 05:12:25,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2942ce43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:12:25, skipping insertion in model container [2018-10-27 05:12:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:12:24" (2/3) ... [2018-10-27 05:12:25,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2942ce43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:12:25, skipping insertion in model container [2018-10-27 05:12:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:12:25" (3/3) ... [2018-10-27 05:12:25,584 INFO L112 eAbstractionObserver]: Analyzing ICFG sigma_false-unreach-call.i_BEv2 [2018-10-27 05:12:25,594 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:12:25,603 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-10-27 05:12:25,619 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-10-27 05:12:25,643 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 05:12:25,644 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:12:25,644 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:12:25,644 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:12:25,645 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:12:25,645 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:12:25,645 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:12:25,645 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:12:25,645 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:12:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2018-10-27 05:12:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-27 05:12:25,673 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:12:25,674 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:12:25,676 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0INUSE_VIOLATION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:12:25,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:12:25,685 INFO L82 PathProgramCache]: Analyzing trace with hash -275450149, now seen corresponding path program 1 times [2018-10-27 05:12:25,691 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-27 05:12:25,691 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bbb2bc10-a04e-4c9d-b138-55c463ac80f3/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-10-27 05:12:25,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:12:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:12:25,822 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:12:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:12:25,855 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 05:12:25,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:12:25,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:12:25,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 05:12:25,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 05:12:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 05:12:25,881 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2018-10-27 05:12:25,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 05:12:25,909 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 05:12:25,913 INFO L168 Benchmark]: Toolchain (without parser) took 2336.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,919 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:12:25,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.63 ms. Allocated memory is still 1.0 GB. Free memory was 943.9 MB in the beginning and 874.1 MB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 874.1 MB in the beginning and 1.2 GB in the end (delta: -297.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,921 INFO L168 Benchmark]: Boogie Preprocessor took 58.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,921 INFO L168 Benchmark]: RCFGBuilder took 929.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,922 INFO L168 Benchmark]: TraceAbstraction took 336.39 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: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-10-27 05:12:25,927 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 862.63 ms. Allocated memory is still 1.0 GB. Free memory was 943.9 MB in the beginning and 874.1 MB in the end (delta: 69.8 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 144.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 874.1 MB in the beginning and 1.2 GB in the end (delta: -297.0 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 929.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.39 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: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ClassCastException: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IcfgForkThreadCurrentTransition cannot be cast to de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.structure.IInternalAction: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...