./Ultimate.py --spec ../../sv-benchmarks/c/ConcurrencySafety.prp --file ../../sv-benchmarks/c/pthread-atomic/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_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 3d5d738785469032c070cabc60204008ea544832 ...................................................................................................................................................................................................................................................... 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_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 3d5d738785469032c070cabc60204008ea544832 .......................................................................................................................................................................................................................................... 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 17:58:46,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:58:46,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:58:46,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:58:46,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:58:46,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:58:46,619 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:58:46,621 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:58:46,622 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:58:46,622 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:58:46,623 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:58:46,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:58:46,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:58:46,624 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:58:46,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:58:46,627 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:58:46,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:58:46,629 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:58:46,631 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:58:46,632 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:58:46,632 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:58:46,634 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:58:46,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:58:46,636 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:58:46,636 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:58:46,637 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:58:46,638 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:58:46,639 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:58:46,639 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:58:46,640 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:58:46,640 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:58:46,641 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:58:46,641 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:58:46,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:58:46,642 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:58:46,643 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:58:46,643 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:58:46,656 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:58:46,657 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:58:46,658 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:58:46,658 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:58:46,658 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:58:46,658 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:58:46,658 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:58:46,658 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:58:46,658 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:58:46,659 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:58:46,659 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:58:46,659 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:58:46,659 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:58:46,659 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:58:46,660 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:58:46,661 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:58:46,661 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:58:46,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:58:46,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:58:46,663 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:58:46,663 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:58:46,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:58:46,663 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:58:46,663 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:58:46,664 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:58:46,664 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:58:46,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:58:46,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:58:46,664 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:58:46,664 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_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 -> 3d5d738785469032c070cabc60204008ea544832 [2018-11-18 17:58:46,688 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:58:46,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:58:46,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:58:46,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:58:46,702 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:58:46,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-18 17:58:46,744 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/3cdad4efd/94b09352335643189a3b0c62a9b1137b/FLAGd4f090b84 [2018-11-18 17:58:47,114 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:58:47,116 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-18 17:58:47,135 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/3cdad4efd/94b09352335643189a3b0c62a9b1137b/FLAGd4f090b84 [2018-11-18 17:58:47,152 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/3cdad4efd/94b09352335643189a3b0c62a9b1137b [2018-11-18 17:58:47,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:58:47,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:58:47,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:58:47,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:58:47,161 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:58:47,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47859799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47, skipping insertion in model container [2018-11-18 17:58:47,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:58:47,227 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:58:47,474 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:58:47,484 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:58:47,535 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:58:47,645 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:58:47,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47 WrapperNode [2018-11-18 17:58:47,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:58:47,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:58:47,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:58:47,646 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:58:47,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:58:47,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:58:47,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:58:47,671 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:58:47,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... [2018-11-18 17:58:47,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:58:47,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:58:47,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:58:47,697 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:58:47,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 17:58:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:58:47,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:58:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 17:58:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 17:58:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 17:58:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 17:58:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:58:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:58:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:58:47,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:58:47,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:58:47,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:58:47,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:58:47,757 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 17:58:48,144 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:58:48,175 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,175 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,175 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,175 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,176 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,176 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,179 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,179 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,180 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,180 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:48,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:58:48 BasicIcfg [2018-11-18 17:58:48,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:58:48,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:58:48,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:58:48,217 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:58:48,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:58:47" (1/3) ... [2018-11-18 17:58:48,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f84134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:58:48, skipping insertion in model container [2018-11-18 17:58:48,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:47" (2/3) ... [2018-11-18 17:58:48,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f84134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:58:48, skipping insertion in model container [2018-11-18 17:58:48,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:58:48" (3/3) ... [2018-11-18 17:58:48,220 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski_true-unreach-call.i_BEv2 [2018-11-18 17:58:48,228 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:58:48,235 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 17:58:48,248 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 17:58:48,277 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:58:48,278 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:58:48,278 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:58:48,278 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:58:48,278 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:58:48,278 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:58:48,278 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:58:48,278 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:58:48,286 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 17:58:48,289 INFO L168 Benchmark]: Toolchain (without parser) took 1133.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -159.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:58:48,290 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:58:48,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:48,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:48,291 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:48,292 INFO L168 Benchmark]: RCFGBuilder took 516.74 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:48,292 INFO L168 Benchmark]: TraceAbstraction took 74.68 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 17:58:48,295 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 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 488.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 951.1 MB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 516.74 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: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 74.68 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 17:58:50,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:58:50,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:58:50,461 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:58:50,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:58:50,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:58:50,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:58:50,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:58:50,467 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:58:50,467 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:58:50,468 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:58:50,468 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:58:50,469 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:58:50,470 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:58:50,471 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:58:50,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:58:50,472 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:58:50,473 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:58:50,475 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:58:50,476 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:58:50,477 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:58:50,478 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:58:50,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:58:50,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:58:50,480 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:58:50,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:58:50,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:58:50,483 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:58:50,483 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:58:50,484 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:58:50,484 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:58:50,485 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:58:50,485 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:58:50,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:58:50,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:58:50,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:58:50,487 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:58:50,498 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:58:50,498 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:58:50,499 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:58:50,499 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:58:50,499 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:58:50,499 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:58:50,500 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:58:50,500 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:58:50,500 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:58:50,500 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:58:50,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:58:50,501 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:58:50,501 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:58:50,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:58:50,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:58:50,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:58:50,502 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:58:50,503 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:58:50,503 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:58:50,503 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:58:50,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:58:50,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:58:50,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:58:50,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:58:50,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:58:50,504 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:58:50,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:58:50,504 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:58:50,504 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:58:50,504 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_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 -> 3d5d738785469032c070cabc60204008ea544832 [2018-11-18 17:58:50,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:58:50,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:58:50,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:58:50,550 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:58:50,551 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:58:50,551 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-18 17:58:50,606 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/cc03652a1/95974c01a0ea46228d0e36454957cfe3/FLAGe5142fb95 [2018-11-18 17:58:50,982 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:58:50,983 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-11-18 17:58:50,994 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/cc03652a1/95974c01a0ea46228d0e36454957cfe3/FLAGe5142fb95 [2018-11-18 17:58:51,005 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/bin-2019/utaipan/data/cc03652a1/95974c01a0ea46228d0e36454957cfe3 [2018-11-18 17:58:51,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:58:51,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:58:51,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:58:51,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:58:51,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:58:51,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6582979c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51, skipping insertion in model container [2018-11-18 17:58:51,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:58:51,057 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:58:51,363 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:58:51,378 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:58:51,426 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:58:51,473 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:58:51,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51 WrapperNode [2018-11-18 17:58:51,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:58:51,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:58:51,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:58:51,474 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:58:51,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:58:51,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:58:51,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:58:51,547 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:58:51,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,555 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... [2018-11-18 17:58:51,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:58:51,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:58:51,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:58:51,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:58:51,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc4b6d41-8cb6-4328-abb6-f66d287fd5ad/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 17:58:51,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:58:51,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 17:58:51,618 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-18 17:58:51,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-18 17:58:51,618 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-18 17:58:51,618 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-18 17:58:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:58:51,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:58:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:58:51,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:58:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:58:51,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:58:51,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:58:51,620 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 17:58:51,950 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:58:51,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,972 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,974 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,974 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,974 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,974 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,975 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:51,975 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 17:58:52,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:58:52 BasicIcfg [2018-11-18 17:58:52,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:58:52,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:58:52,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:58:52,009 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:58:52,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:58:51" (1/3) ... [2018-11-18 17:58:52,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6806540d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:58:52, skipping insertion in model container [2018-11-18 17:58:52,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:58:51" (2/3) ... [2018-11-18 17:58:52,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6806540d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:58:52, skipping insertion in model container [2018-11-18 17:58:52,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:58:52" (3/3) ... [2018-11-18 17:58:52,012 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski_true-unreach-call.i_BEv2 [2018-11-18 17:58:52,021 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:58:52,027 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-18 17:58:52,036 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-18 17:58:52,057 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:58:52,058 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:58:52,058 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:58:52,058 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:58:52,058 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:58:52,058 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:58:52,058 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:58:52,058 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:58:52,059 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:58:52,067 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 17:58:52,069 INFO L168 Benchmark]: Toolchain (without parser) took 1061.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -141.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:58:52,070 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 17:58:52,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 464.36 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 914.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:52,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 914.3 MB in the beginning and 1.1 GB in the end (delta: -204.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:52,072 INFO L168 Benchmark]: Boogie Preprocessor took 27.32 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 17:58:52,072 INFO L168 Benchmark]: RCFGBuilder took 432.04 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: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:58:52,073 INFO L168 Benchmark]: TraceAbstraction took 61.86 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 17:58:52,075 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 464.36 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 914.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 914.3 MB in the beginning and 1.1 GB in the end (delta: -204.8 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.32 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 432.04 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: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 61.86 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...