./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread-ext/16_peterson_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_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 a6a89f9f46b1412575f1266b3402a81524b5e7b5 ................................................................................................................................................................................................................................ 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_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 a6a89f9f46b1412575f1266b3402a81524b5e7b5 ...................................................................................................................................................................................................................................... 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 16:06:51,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:06:51,792 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:06:51,801 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:06:51,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:06:51,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:06:51,804 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:06:51,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:06:51,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:06:51,807 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:06:51,808 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:06:51,808 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:06:51,809 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:06:51,809 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:06:51,810 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:06:51,811 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:06:51,812 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:06:51,813 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:06:51,815 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:06:51,816 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:06:51,817 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:06:51,817 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:06:51,820 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:06:51,820 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:06:51,820 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:06:51,821 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:06:51,821 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:06:51,822 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:06:51,823 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:06:51,824 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:06:51,824 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:06:51,825 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:06:51,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:06:51,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:06:51,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:06:51,827 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:06:51,827 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:06:51,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:06:51,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:06:51,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:06:51,839 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:06:51,839 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:06:51,839 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:06:51,839 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:06:51,840 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:06:51,841 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:06:51,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:06:51,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:06:51,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:06:51,842 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:06:51,844 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:06:51,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:06:51,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:06:51,845 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:06:51,845 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_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 -> a6a89f9f46b1412575f1266b3402a81524b5e7b5 [2018-11-18 16:06:51,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:06:51,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:06:51,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:06:51,883 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:06:51,883 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:06:51,883 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-11-18 16:06:51,920 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/69cd4c74e/26b2e753a4344718869f4e20c15df404/FLAGae313715b [2018-11-18 16:06:52,280 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:06:52,281 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-11-18 16:06:52,291 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/69cd4c74e/26b2e753a4344718869f4e20c15df404/FLAGae313715b [2018-11-18 16:06:52,303 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/69cd4c74e/26b2e753a4344718869f4e20c15df404 [2018-11-18 16:06:52,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:06:52,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:06:52,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:06:52,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:06:52,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:06:52,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e18e2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52, skipping insertion in model container [2018-11-18 16:06:52,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:06:52,359 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:06:52,605 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:06:52,615 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:06:52,712 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:06:52,756 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:06:52,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52 WrapperNode [2018-11-18 16:06:52,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:06:52,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:06:52,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:06:52,757 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:06:52,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:06:52,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:06:52,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:06:52,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:06:52,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... [2018-11-18 16:06:52,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:06:52,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:06:52,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:06:52,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:06:52,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 16:06:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:06:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:06:52,865 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 16:06:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 16:06:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 16:06:52,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 16:06:52,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:06:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:06:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:06:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:06:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:06:52,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:06:52,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:06:52,868 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 16:06:53,227 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:06:53,246 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,246 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,246 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,247 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,247 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,247 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:53,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:06:53 BasicIcfg [2018-11-18 16:06:53,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:06:53,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:06:53,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:06:53,272 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:06:53,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:06:52" (1/3) ... [2018-11-18 16:06:53,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462fbae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:06:53, skipping insertion in model container [2018-11-18 16:06:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:52" (2/3) ... [2018-11-18 16:06:53,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462fbae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:06:53, skipping insertion in model container [2018-11-18 16:06:53,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:06:53" (3/3) ... [2018-11-18 16:06:53,275 INFO L112 eAbstractionObserver]: Analyzing ICFG 16_peterson_true-unreach-call.i_BEv2 [2018-11-18 16:06:53,284 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:06:53,292 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 16:06:53,306 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 16:06:53,331 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:06:53,331 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:06:53,331 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:06:53,332 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:06:53,332 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:06:53,332 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:06:53,332 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:06:53,332 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:06:53,341 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 16:06:53,344 INFO L168 Benchmark]: Toolchain (without parser) took 1038.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -135.3 MB). Peak memory consumption was 2.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:53,346 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:06:53,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:53,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.64 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 16:06:53,347 INFO L168 Benchmark]: Boogie Preprocessor took 24.53 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 16:06:53,347 INFO L168 Benchmark]: RCFGBuilder took 455.30 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:53,348 INFO L168 Benchmark]: TraceAbstraction took 74.90 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 16:06:53,351 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 449.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -166.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.64 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 24.53 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 455.30 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: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 74.90 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 16:06:55,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:06:55,212 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:06:55,222 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:06:55,222 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:06:55,223 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:06:55,224 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:06:55,225 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:06:55,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:06:55,230 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:06:55,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:06:55,233 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:06:55,234 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:06:55,235 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:06:55,235 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:06:55,236 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:06:55,237 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:06:55,238 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:06:55,240 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:06:55,241 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:06:55,242 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:06:55,243 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:06:55,245 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:06:55,245 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:06:55,245 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:06:55,246 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:06:55,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:06:55,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:06:55,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:06:55,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:06:55,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:06:55,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:06:55,251 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:06:55,251 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:06:55,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:06:55,252 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:06:55,252 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:06:55,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:06:55,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:06:55,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:06:55,265 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:06:55,265 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:06:55,265 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:06:55,265 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:06:55,265 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:06:55,266 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:06:55,266 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:06:55,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:06:55,266 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:06:55,267 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:06:55,268 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:06:55,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:06:55,269 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:06:55,269 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:06:55,272 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:06:55,272 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_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 -> a6a89f9f46b1412575f1266b3402a81524b5e7b5 [2018-11-18 16:06:55,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:06:55,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:06:55,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:06:55,324 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:06:55,325 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:06:55,325 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-11-18 16:06:55,374 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/13858e31b/844afe34b86a4a388fb4990609e7d6e4/FLAG02a19b074 [2018-11-18 16:06:55,766 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:06:55,766 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-11-18 16:06:55,781 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/13858e31b/844afe34b86a4a388fb4990609e7d6e4/FLAG02a19b074 [2018-11-18 16:06:56,141 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/bin-2019/utaipan/data/13858e31b/844afe34b86a4a388fb4990609e7d6e4 [2018-11-18 16:06:56,143 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:06:56,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:06:56,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:06:56,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:06:56,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:06:56,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f4dcc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56, skipping insertion in model container [2018-11-18 16:06:56,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:06:56,202 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:06:56,496 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:06:56,512 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:06:56,548 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:06:56,616 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:06:56,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56 WrapperNode [2018-11-18 16:06:56,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:06:56,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:06:56,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:06:56,617 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:06:56,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:06:56,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:06:56,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:06:56,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:06:56,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... [2018-11-18 16:06:56,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:06:56,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:06:56,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:06:56,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:06:56,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1324d66-cfd2-4f46-b2e8-e117c6d848fb/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 16:06:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:06:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:06:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 16:06:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 16:06:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 16:06:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 16:06:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:06:56,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:06:56,815 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:06:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:06:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:06:56,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:06:56,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:06:56,817 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 16:06:57,121 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:06:57,135 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,136 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,136 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,136 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,137 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,137 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:06:57,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:06:57 BasicIcfg [2018-11-18 16:06:57,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:06:57,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:06:57,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:06:57,144 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:06:57,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:06:56" (1/3) ... [2018-11-18 16:06:57,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5385093c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:06:57, skipping insertion in model container [2018-11-18 16:06:57,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:06:56" (2/3) ... [2018-11-18 16:06:57,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5385093c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:06:57, skipping insertion in model container [2018-11-18 16:06:57,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:06:57" (3/3) ... [2018-11-18 16:06:57,147 INFO L112 eAbstractionObserver]: Analyzing ICFG 16_peterson_true-unreach-call.i_BEv2 [2018-11-18 16:06:57,155 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:06:57,161 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 16:06:57,169 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 16:06:57,188 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:06:57,188 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:06:57,188 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:06:57,188 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:06:57,189 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:06:57,189 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:06:57,189 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:06:57,189 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:06:57,189 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:06:57,197 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 16:06:57,200 INFO L168 Benchmark]: Toolchain (without parser) took 1056.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:06:57,201 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 16:06:57,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.91 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 911.6 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:57,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 911.6 MB in the beginning and 1.1 GB in the end (delta: -225.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:57,202 INFO L168 Benchmark]: Boogie Preprocessor took 33.28 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:57,202 INFO L168 Benchmark]: RCFGBuilder took 374.14 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:06:57,203 INFO L168 Benchmark]: TraceAbstraction took 57.85 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 16:06:57,206 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 471.91 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 911.6 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 115.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 911.6 MB in the beginning and 1.1 GB in the end (delta: -225.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.28 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 374.14 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57.85 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. * 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...