./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 1f35ad4d09cb4c3ad48b10367557e960abcdf91a ................................................................................................................................................................................................................................................ 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_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 1f35ad4d09cb4c3ad48b10367557e960abcdf91a .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: analysis for sequential programs does not support fork/join --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:13:49,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:13:49,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:13:49,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:13:49,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:13:49,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:13:49,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:13:49,808 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:13:49,809 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:13:49,810 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:13:49,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:13:49,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:13:49,811 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:13:49,812 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:13:49,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:13:49,813 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:13:49,814 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:13:49,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:13:49,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:13:49,818 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:13:49,818 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:13:49,819 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:13:49,821 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:13:49,821 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:13:49,821 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:13:49,822 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:13:49,823 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:13:49,823 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:13:49,824 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:13:49,825 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:13:49,825 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:13:49,825 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:13:49,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:13:49,826 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:13:49,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:13:49,827 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:13:49,827 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:13:49,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:13:49,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:13:49,838 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:13:49,838 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:13:49,839 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:13:49,839 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:13:49,840 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:13:49,840 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:13:49,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:13:49,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:13:49,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:13:49,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:13:49,843 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:13:49,843 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:13:49,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:49,843 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:13:49,843 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:13:49,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:13:49,844 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:13:49,844 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:13:49,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:13:49,844 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:13:49,844 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_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 -> 1f35ad4d09cb4c3ad48b10367557e960abcdf91a [2018-11-18 16:13:49,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:13:49,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:13:49,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:13:49,879 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:13:49,879 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:13:49,880 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i [2018-11-18 16:13:49,920 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/4bace0b18/00b0492a880d4b36aad3b59bb805b958/FLAGc9e5c9d7b [2018-11-18 16:13:50,370 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:13:50,371 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i [2018-11-18 16:13:50,380 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/4bace0b18/00b0492a880d4b36aad3b59bb805b958/FLAGc9e5c9d7b [2018-11-18 16:13:50,389 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/4bace0b18/00b0492a880d4b36aad3b59bb805b958 [2018-11-18 16:13:50,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:13:50,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:13:50,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:50,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:13:50,396 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:13:50,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e04dcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50, skipping insertion in model container [2018-11-18 16:13:50,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:13:50,433 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:13:50,641 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:50,649 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:13:50,717 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:50,762 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:13:50,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50 WrapperNode [2018-11-18 16:13:50,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:50,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:50,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:13:50,763 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:13:50,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:50,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:13:50,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:13:50,793 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:13:50,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... [2018-11-18 16:13:50,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:13:50,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:13:50,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:13:50,816 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:13:50,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 [2018-11-18 16:13:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:13:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:13:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 16:13:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 16:13:50,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:13:50,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:13:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:13:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:13:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:13:50,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:13:50,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:13:50,861 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-18 16:13:51,102 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:13:51,118 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,119 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,120 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,120 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,121 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:51,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:51 BasicIcfg [2018-11-18 16:13:51,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:13:51,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:13:51,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:13:51,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:13:51,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:13:50" (1/3) ... [2018-11-18 16:13:51,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698ea05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:51, skipping insertion in model container [2018-11-18 16:13:51,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:50" (2/3) ... [2018-11-18 16:13:51,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3698ea05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:51, skipping insertion in model container [2018-11-18 16:13:51,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:51" (3/3) ... [2018-11-18 16:13:51,131 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs_true-unreach-call.i_BEv2 [2018-11-18 16:13:51,137 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:13:51,143 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 16:13:51,153 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 16:13:51,174 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:13:51,174 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:13:51,174 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:13:51,174 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:13:51,174 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:13:51,175 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:13:51,175 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:13:51,175 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:13:51,182 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: analysis for sequential programs does not support fork/join at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomatonWithSPredicates(CFG2NestedWordAutomaton.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) 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) [2018-11-18 16:13:51,184 INFO L168 Benchmark]: Toolchain (without parser) took 792.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:51,185 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:51,186 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:51,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:51,187 INFO L168 Benchmark]: Boogie Preprocessor took 22.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:51,187 INFO L168 Benchmark]: RCFGBuilder took 310.08 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:51,188 INFO L168 Benchmark]: TraceAbstraction took 57.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:51,190 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 310.08 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: analysis for sequential programs does not support fork/join de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: analysis for sequential programs does not support fork/join: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:234) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 16:13:52,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:13:52,614 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:13:52,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:13:52,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:13:52,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:13:52,625 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:13:52,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:13:52,627 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:13:52,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:13:52,628 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:13:52,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:13:52,629 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:13:52,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:13:52,630 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:13:52,631 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:13:52,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:13:52,633 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:13:52,634 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:13:52,635 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:13:52,636 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:13:52,637 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:13:52,639 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:13:52,639 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:13:52,639 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:13:52,640 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:13:52,640 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:13:52,641 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:13:52,641 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:13:52,642 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:13:52,642 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:13:52,643 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:13:52,643 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:13:52,643 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:13:52,644 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:13:52,644 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:13:52,644 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:13:52,655 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:13:52,655 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:13:52,655 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:13:52,656 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:13:52,656 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:13:52,657 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:13:52,657 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:13:52,657 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:13:52,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:13:52,658 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:13:52,659 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:13:52,659 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:13:52,659 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:13:52,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:13:52,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:13:52,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:52,660 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:13:52,660 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:13:52,660 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_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 -> 1f35ad4d09cb4c3ad48b10367557e960abcdf91a [2018-11-18 16:13:52,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:13:52,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:13:52,702 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:13:52,703 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:13:52,703 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:13:52,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i [2018-11-18 16:13:52,748 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/cde269688/bba83349dcc342709a40871703541858/FLAGaef8db8c6 [2018-11-18 16:13:53,182 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:13:53,182 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/sv-benchmarks/c/pthread-ext/45_monabsex1_vs_true-unreach-call.i [2018-11-18 16:13:53,196 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/cde269688/bba83349dcc342709a40871703541858/FLAGaef8db8c6 [2018-11-18 16:13:53,207 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/bin-2019/utaipan/data/cde269688/bba83349dcc342709a40871703541858 [2018-11-18 16:13:53,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:13:53,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:13:53,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:53,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:13:53,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:13:53,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361b24a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53, skipping insertion in model container [2018-11-18 16:13:53,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:13:53,255 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:13:53,488 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:53,498 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:13:53,526 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:53,576 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:13:53,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53 WrapperNode [2018-11-18 16:13:53,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:53,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:53,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:13:53,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:13:53,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:53,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:13:53,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:13:53,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:13:53,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... [2018-11-18 16:13:53,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:13:53,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:13:53,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:13:53,664 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:13:53,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0a04fe01-a6e6-43df-a2d3-5b36661a7cc4/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 [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 16:13:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:13:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:13:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:13:53,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:13:53,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:13:53,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:13:53,698 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-18 16:13:53,830 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:13:53,846 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,846 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,847 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,847 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,848 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,848 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:53,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:53 BasicIcfg [2018-11-18 16:13:53,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:13:53,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:13:53,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:13:53,857 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:13:53,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:13:53" (1/3) ... [2018-11-18 16:13:53,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324da16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:53, skipping insertion in model container [2018-11-18 16:13:53,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:53" (2/3) ... [2018-11-18 16:13:53,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@324da16b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:53, skipping insertion in model container [2018-11-18 16:13:53,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:53" (3/3) ... [2018-11-18 16:13:53,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 45_monabsex1_vs_true-unreach-call.i_BEv2 [2018-11-18 16:13:53,867 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:13:53,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-18 16:13:53,885 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-18 16:13:53,908 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:13:53,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:13:53,908 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:13:53,908 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:13:53,908 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:13:53,908 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:13:53,909 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:13:53,909 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:13:53,909 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:13:53,915 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: analysis for sequential programs does not support fork/join at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomatonWithSPredicates(CFG2NestedWordAutomaton.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:402) 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) [2018-11-18 16:13:53,917 INFO L168 Benchmark]: Toolchain (without parser) took 707.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:53,918 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-18 16:13:53,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:53,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -209.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:53,919 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:53,920 INFO L168 Benchmark]: RCFGBuilder took 189.71 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:53,920 INFO L168 Benchmark]: TraceAbstraction took 62.58 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:53,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 365.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 912.2 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 912.2 MB in the beginning and 1.1 GB in the end (delta: -209.7 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 189.71 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: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 62.58 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: analysis for sequential programs does not support fork/join de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: analysis for sequential programs does not support fork/join: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructAutomaton(CFG2NestedWordAutomaton.java:234) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...