./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread-ext/17_szymanski_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_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 58bdd2dd6f7f4bfbe6fbaedc8a62c157487fbf5c ................................................................................................................................................................................................................................................ 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_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 58bdd2dd6f7f4bfbe6fbaedc8a62c157487fbf5c ........................................................................................................................................................................................................................................... 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 13:21:35,583 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:21:35,584 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:21:35,591 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:21:35,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:21:35,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:21:35,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:21:35,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:21:35,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:21:35,596 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:21:35,597 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:21:35,597 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:21:35,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:21:35,598 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:21:35,599 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:21:35,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:21:35,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:21:35,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:21:35,603 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:21:35,604 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:21:35,605 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:21:35,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:21:35,607 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:21:35,607 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:21:35,607 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:21:35,608 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:21:35,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:21:35,609 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:21:35,610 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:21:35,611 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:21:35,611 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:21:35,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:21:35,612 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:21:35,612 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:21:35,612 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:21:35,613 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:21:35,613 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:21:35,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:21:35,623 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:21:35,624 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:21:35,624 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:21:35,624 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:21:35,624 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:21:35,624 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:21:35,625 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:21:35,626 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:21:35,626 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:21:35,627 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:21:35,627 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:21:35,628 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:21:35,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:21:35,629 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:21:35,629 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_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 -> 58bdd2dd6f7f4bfbe6fbaedc8a62c157487fbf5c [2018-11-18 13:21:35,652 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:21:35,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:21:35,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:21:35,665 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:21:35,666 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:21:35,666 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i [2018-11-18 13:21:35,714 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/93003c691/d0cdf0b39eff4bf2af3adb31103c08a0/FLAG89a4ffeb9 [2018-11-18 13:21:36,071 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:21:36,072 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i [2018-11-18 13:21:36,082 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/93003c691/d0cdf0b39eff4bf2af3adb31103c08a0/FLAG89a4ffeb9 [2018-11-18 13:21:36,094 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/93003c691/d0cdf0b39eff4bf2af3adb31103c08a0 [2018-11-18 13:21:36,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:21:36,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:21:36,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:21:36,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:21:36,102 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:21:36,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c3d122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36, skipping insertion in model container [2018-11-18 13:21:36,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:21:36,148 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:21:36,384 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:21:36,393 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:21:36,485 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:21:36,529 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:21:36,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36 WrapperNode [2018-11-18 13:21:36,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:21:36,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:21:36,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:21:36,531 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:21:36,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:21:36,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:21:36,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:21:36,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:21:36,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... [2018-11-18 13:21:36,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:21:36,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:21:36,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:21:36,584 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:21:36,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 13:21:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:21:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:21:36,634 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 13:21:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 13:21:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 13:21:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 13:21:36,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:21:36,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:21:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:21:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:21:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:21:36,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:21:36,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:21:36,637 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 13:21:36,868 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:21:36,886 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,886 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,887 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,887 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,887 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,887 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:36,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:21:36 BasicIcfg [2018-11-18 13:21:36,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:21:36,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:21:36,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:21:36,903 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:21:36,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:21:36" (1/3) ... [2018-11-18 13:21:36,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df74f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:21:36, skipping insertion in model container [2018-11-18 13:21:36,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:36" (2/3) ... [2018-11-18 13:21:36,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df74f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:21:36, skipping insertion in model container [2018-11-18 13:21:36,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:21:36" (3/3) ... [2018-11-18 13:21:36,906 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski_true-unreach-call.i_BEv2 [2018-11-18 13:21:36,912 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:21:36,918 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 13:21:36,927 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 13:21:36,947 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:21:36,947 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:21:36,947 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:21:36,947 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:21:36,947 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:21:36,947 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:21:36,947 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:21:36,948 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:21:36,956 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 13:21:36,958 INFO L168 Benchmark]: Toolchain (without parser) took 861.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -107.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:36,959 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:21:36,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:36,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:36,961 INFO L168 Benchmark]: Boogie Preprocessor took 23.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:21:36,961 INFO L168 Benchmark]: RCFGBuilder took 315.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:36,962 INFO L168 Benchmark]: TraceAbstraction took 57.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:36,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -145.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 315.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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 13:21:38,390 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:21:38,391 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:21:38,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:21:38,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:21:38,399 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:21:38,400 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:21:38,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:21:38,402 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:21:38,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:21:38,404 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:21:38,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:21:38,405 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:21:38,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:21:38,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:21:38,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:21:38,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:21:38,408 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:21:38,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:21:38,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:21:38,411 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:21:38,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:21:38,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:21:38,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:21:38,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:21:38,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:21:38,415 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:21:38,416 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:21:38,416 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:21:38,417 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:21:38,417 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:21:38,418 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:21:38,418 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:21:38,418 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:21:38,419 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:21:38,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:21:38,419 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:21:38,430 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:21:38,430 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:21:38,431 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:21:38,431 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:21:38,431 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:21:38,431 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:21:38,431 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:21:38,431 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:21:38,431 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:21:38,432 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:21:38,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:21:38,432 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:21:38,432 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:21:38,432 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:21:38,433 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:21:38,434 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:21:38,434 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:21:38,434 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:21:38,434 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:21:38,434 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:21:38,434 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:21:38,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:21:38,435 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:21:38,436 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:21:38,436 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_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 -> 58bdd2dd6f7f4bfbe6fbaedc8a62c157487fbf5c [2018-11-18 13:21:38,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:21:38,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:21:38,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:21:38,477 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:21:38,477 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:21:38,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i [2018-11-18 13:21:38,515 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/912ea8553/156d76a061b44d0b962825c4fa428063/FLAG0ec14a29e [2018-11-18 13:21:38,955 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:21:38,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/sv-benchmarks/c/pthread-ext/17_szymanski_true-unreach-call.i [2018-11-18 13:21:38,965 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/912ea8553/156d76a061b44d0b962825c4fa428063/FLAG0ec14a29e [2018-11-18 13:21:38,977 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/bin-2019/utaipan/data/912ea8553/156d76a061b44d0b962825c4fa428063 [2018-11-18 13:21:38,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:21:38,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:21:38,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:21:38,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:21:38,985 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:21:38,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:21:38" (1/1) ... [2018-11-18 13:21:38,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7962ae87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:38, skipping insertion in model container [2018-11-18 13:21:38,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:21:38" (1/1) ... [2018-11-18 13:21:38,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:21:39,030 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:21:39,290 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:21:39,301 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:21:39,333 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:21:39,429 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:21:39,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39 WrapperNode [2018-11-18 13:21:39,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:21:39,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:21:39,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:21:39,430 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:21:39,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:21:39,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:21:39,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:21:39,453 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:21:39,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... [2018-11-18 13:21:39,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:21:39,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:21:39,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:21:39,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:21:39,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_035bb5b7-46f8-4462-9fa1-eaaaba0fe55d/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 13:21:39,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:21:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:21:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 13:21:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 13:21:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 13:21:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 13:21:39,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:21:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:21:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:21:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:21:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:21:39,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:21:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:21:39,521 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 13:21:39,746 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,761 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:21:39,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:21:39 BasicIcfg [2018-11-18 13:21:39,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:21:39,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:21:39,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:21:39,767 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:21:39,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:21:38" (1/3) ... [2018-11-18 13:21:39,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c443986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:21:39, skipping insertion in model container [2018-11-18 13:21:39,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:21:39" (2/3) ... [2018-11-18 13:21:39,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c443986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:21:39, skipping insertion in model container [2018-11-18 13:21:39,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:21:39" (3/3) ... [2018-11-18 13:21:39,770 INFO L112 eAbstractionObserver]: Analyzing ICFG 17_szymanski_true-unreach-call.i_BEv2 [2018-11-18 13:21:39,776 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:21:39,781 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 13:21:39,791 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 13:21:39,810 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:21:39,811 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:21:39,811 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:21:39,811 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:21:39,811 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:21:39,811 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:21:39,811 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:21:39,811 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:21:39,811 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:21:39,819 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 13:21:39,821 INFO L168 Benchmark]: Toolchain (without parser) took 841.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -143.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:21:39,822 INFO L168 Benchmark]: CDTParser took 0.13 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 13:21:39,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:39,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.07 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:39,823 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 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 13:21:39,824 INFO L168 Benchmark]: RCFGBuilder took 284.63 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:39,824 INFO L168 Benchmark]: TraceAbstraction took 55.18 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:21:39,827 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 448.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.07 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.70 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 284.63 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: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 55.18 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: 6.6 MB). Peak memory consumption was 6.6 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...