./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread-ext/20_lamport_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_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/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 8fadcfc916b2f65c1721b9377548800a44202c5e ............................................................................................................................................................................................................................................ 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_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/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 8fadcfc916b2f65c1721b9377548800a44202c5e .............................................................................................................................................................................................................................................. 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 10:39:42,112 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:39:42,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:39:42,119 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:39:42,119 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:39:42,120 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:39:42,121 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:39:42,122 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:39:42,123 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:39:42,124 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:39:42,125 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:39:42,125 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:39:42,125 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:39:42,126 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:39:42,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:39:42,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:39:42,127 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:39:42,129 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:39:42,130 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:39:42,130 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:39:42,131 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:39:42,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:39:42,134 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:39:42,134 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:39:42,134 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:39:42,134 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:39:42,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:39:42,135 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:39:42,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:39:42,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:39:42,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:39:42,137 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:39:42,137 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:39:42,138 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:39:42,138 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:39:42,139 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:39:42,139 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:39:42,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:39:42,147 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:39:42,147 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:39:42,148 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:39:42,148 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:39:42,149 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:39:42,149 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:39:42,149 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:39:42,149 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:39:42,150 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:39:42,151 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:39:42,151 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:39:42,152 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:39:42,152 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:39:42,153 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_6814507d-32c3-4611-b4da-58aaa0388b7a/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 -> 8fadcfc916b2f65c1721b9377548800a44202c5e [2018-11-18 10:39:42,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:39:42,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:39:42,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:39:42,191 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:39:42,191 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:39:42,192 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-18 10:39:42,236 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/1daabb560/f1e6b77828624c66a8a3a2f31c5e7085/FLAGa46a0fb81 [2018-11-18 10:39:42,638 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:39:42,639 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-18 10:39:42,651 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/1daabb560/f1e6b77828624c66a8a3a2f31c5e7085/FLAGa46a0fb81 [2018-11-18 10:39:43,011 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/1daabb560/f1e6b77828624c66a8a3a2f31c5e7085 [2018-11-18 10:39:43,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:39:43,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:39:43,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:39:43,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:39:43,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:39:43,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7ec1e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43, skipping insertion in model container [2018-11-18 10:39:43,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:39:43,058 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:39:43,270 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:39:43,278 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:39:43,360 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:39:43,405 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:39:43,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43 WrapperNode [2018-11-18 10:39:43,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:39:43,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:39:43,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:39:43,407 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:39:43,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:39:43,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:39:43,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:39:43,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:39:43,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... [2018-11-18 10:39:43,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:39:43,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:39:43,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:39:43,462 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:39:43,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/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 10:39:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:39:43,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:39:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 10:39:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 10:39:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 10:39:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 10:39:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:39:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:39:43,509 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:39:43,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:39:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:39:43,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:39:43,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:39:43,511 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 10:39:43,762 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:39:43,780 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,780 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,780 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,781 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,781 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,782 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:43,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:39:43 BasicIcfg [2018-11-18 10:39:43,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:39:43,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:39:43,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:39:43,798 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:39:43,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:39:43" (1/3) ... [2018-11-18 10:39:43,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f3b0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:39:43, skipping insertion in model container [2018-11-18 10:39:43,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:43" (2/3) ... [2018-11-18 10:39:43,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f3b0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:39:43, skipping insertion in model container [2018-11-18 10:39:43,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:39:43" (3/3) ... [2018-11-18 10:39:43,801 INFO L112 eAbstractionObserver]: Analyzing ICFG 20_lamport_true-unreach-call.i_BEv2 [2018-11-18 10:39:43,810 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:39:43,816 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 10:39:43,826 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 10:39:43,851 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:39:43,852 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:39:43,852 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:39:43,852 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:39:43,852 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:39:43,852 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:39:43,852 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:39:43,852 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:39:43,862 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 10:39:43,864 INFO L168 Benchmark]: Toolchain (without parser) took 850.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:43,865 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:39:43,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:43,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.82 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 10:39:43,867 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 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 10:39:43,867 INFO L168 Benchmark]: RCFGBuilder took 333.18 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:43,867 INFO L168 Benchmark]: TraceAbstraction took 68.29 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 10:39:43,870 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 392.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.82 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 25.41 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 333.18 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 68.29 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 10:39:45,348 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:39:45,350 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:39:45,359 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:39:45,359 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:39:45,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:39:45,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:39:45,362 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:39:45,363 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:39:45,364 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:39:45,364 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:39:45,365 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:39:45,365 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:39:45,366 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:39:45,367 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:39:45,368 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:39:45,368 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:39:45,369 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:39:45,371 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:39:45,372 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:39:45,373 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:39:45,374 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:39:45,376 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:39:45,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:39:45,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:39:45,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:39:45,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:39:45,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:39:45,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:39:45,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:39:45,381 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:39:45,381 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:39:45,382 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:39:45,382 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:39:45,382 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:39:45,383 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:39:45,383 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:39:45,396 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:39:45,396 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:39:45,398 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:39:45,398 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:39:45,398 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:39:45,399 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:39:45,399 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:39:45,399 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:39:45,399 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:39:45,399 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:39:45,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:39:45,400 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:39:45,400 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:39:45,400 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:39:45,400 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:39:45,401 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:39:45,402 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:39:45,402 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:39:45,402 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:39:45,402 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:39:45,402 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:39:45,402 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:39:45,403 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:39:45,403 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:39:45,404 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_6814507d-32c3-4611-b4da-58aaa0388b7a/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 -> 8fadcfc916b2f65c1721b9377548800a44202c5e [2018-11-18 10:39:45,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:39:45,452 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:39:45,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:39:45,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:39:45,456 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:39:45,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-18 10:39:45,509 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/30c2f46c6/d93c6fd6db92484e927a8399bdfe359b/FLAG92fa7fe34 [2018-11-18 10:39:45,911 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:39:45,912 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/sv-benchmarks/c/pthread-ext/20_lamport_true-unreach-call.i [2018-11-18 10:39:45,919 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/30c2f46c6/d93c6fd6db92484e927a8399bdfe359b/FLAG92fa7fe34 [2018-11-18 10:39:45,930 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/bin-2019/utaipan/data/30c2f46c6/d93c6fd6db92484e927a8399bdfe359b [2018-11-18 10:39:45,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:39:45,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:39:45,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:39:45,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:39:45,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:39:45,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:39:45" (1/1) ... [2018-11-18 10:39:45,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ddd4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:45, skipping insertion in model container [2018-11-18 10:39:45,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:39:45" (1/1) ... [2018-11-18 10:39:45,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:39:45,977 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:39:46,222 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:39:46,234 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:39:46,274 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:39:46,374 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:39:46,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46 WrapperNode [2018-11-18 10:39:46,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:39:46,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:39:46,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:39:46,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:39:46,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:39:46,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:39:46,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:39:46,396 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:39:46,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... [2018-11-18 10:39:46,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:39:46,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:39:46,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:39:46,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:39:46,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6814507d-32c3-4611-b4da-58aaa0388b7a/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 10:39:46,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:39:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:39:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 10:39:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 10:39:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 10:39:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 10:39:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:39:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:39:46,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:39:46,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:39:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:39:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:39:46,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:39:46,476 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 10:39:46,713 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:39:46,731 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,732 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,732 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,732 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,732 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,732 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:39:46,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:39:46 BasicIcfg [2018-11-18 10:39:46,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:39:46,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:39:46,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:39:46,740 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:39:46,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:39:45" (1/3) ... [2018-11-18 10:39:46,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7182b0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:39:46, skipping insertion in model container [2018-11-18 10:39:46,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:39:46" (2/3) ... [2018-11-18 10:39:46,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7182b0af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:39:46, skipping insertion in model container [2018-11-18 10:39:46,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:39:46" (3/3) ... [2018-11-18 10:39:46,743 INFO L112 eAbstractionObserver]: Analyzing ICFG 20_lamport_true-unreach-call.i_BEv2 [2018-11-18 10:39:46,752 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:39:46,759 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 10:39:46,768 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 10:39:46,788 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:39:46,789 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:39:46,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:39:46,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:39:46,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:39:46,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:39:46,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:39:46,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:39:46,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:39:46,797 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 10:39:46,799 INFO L168 Benchmark]: Toolchain (without parser) took 866.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:46,800 INFO L168 Benchmark]: CDTParser took 0.19 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 10:39:46,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:46,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:46,802 INFO L168 Benchmark]: Boogie Preprocessor took 28.81 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 10:39:46,802 INFO L168 Benchmark]: RCFGBuilder took 311.57 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:39:46,803 INFO L168 Benchmark]: TraceAbstraction took 61.52 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 10:39:46,806 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 440.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.81 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 311.57 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 61.52 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...