./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/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 77cb26d8daff95a58c6f08c870c74bbe02e79b05 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:24:10,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:24:10,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:24:10,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:24:10,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:24:10,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:24:10,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:24:10,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:24:10,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:24:10,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:24:10,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:24:10,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:24:10,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:24:10,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:24:10,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:24:10,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:24:10,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:24:10,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:24:10,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:24:10,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:24:10,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:24:10,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:24:10,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:24:10,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:24:10,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:24:10,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:24:10,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:24:10,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:24:10,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:24:10,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:24:10,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:24:10,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:24:10,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:24:10,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:24:10,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:24:10,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:24:10,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:24:10,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:24:10,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:24:10,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:24:10,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:24:10,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:24:10,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:24:10,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:24:10,733 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:24:10,733 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:24:10,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:24:10,733 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:24:10,733 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:24:10,734 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:24:10,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:24:10,734 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:24:10,734 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:24:10,734 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:24:10,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:24:10,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:24:10,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:24:10,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:24:10,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:24:10,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:24:10,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:24:10,737 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:24:10,737 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:24:10,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:24:10,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:24:10,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:24:10,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:24:10,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:24:10,738 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:24:10,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:24:10,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:24:10,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:24:10,739 INFO L138 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_52e82515-0bef-4401-ac3a-1a3339345757/bin/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 -> 77cb26d8daff95a58c6f08c870c74bbe02e79b05 [2019-10-22 11:24:10,766 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:24:10,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:24:10,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:24:10,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:24:10,783 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:24:10,783 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i [2019-10-22 11:24:10,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/data/c684813c3/6d8c16cab7744ff98aaff48063141ede/FLAGac1169c84 [2019-10-22 11:24:11,346 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:24:11,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/sv-benchmarks/c/pthread-wmm/safe032_tso.oepc.i [2019-10-22 11:24:11,361 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/data/c684813c3/6d8c16cab7744ff98aaff48063141ede/FLAGac1169c84 [2019-10-22 11:24:11,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/data/c684813c3/6d8c16cab7744ff98aaff48063141ede [2019-10-22 11:24:11,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:24:11,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:24:11,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:11,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:24:11,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:24:11,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:11" (1/1) ... [2019-10-22 11:24:11,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1250712a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:11, skipping insertion in model container [2019-10-22 11:24:11,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:24:11" (1/1) ... [2019-10-22 11:24:11,830 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:24:11,881 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:24:12,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:12,270 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:24:12,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:24:12,393 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:24:12,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12 WrapperNode [2019-10-22 11:24:12,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:24:12,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:12,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:24:12,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:24:12,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,449 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:24:12,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:24:12,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:24:12,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:24:12,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... [2019-10-22 11:24:12,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:24:12,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:24:12,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:24:12,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:24:12,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/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 [2019-10-22 11:24:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:24:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 11:24:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:24:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 11:24:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 11:24:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 11:24:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 11:24:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 11:24:12,582 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 11:24:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 11:24:12,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:24:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:24:12,584 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:24:12,970 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:12,970 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:24:12,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:12 BoogieIcfgContainer [2019-10-22 11:24:12,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:12,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:12,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:12,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:12,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:24:11" (1/3) ... [2019-10-22 11:24:12,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2634ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:12, skipping insertion in model container [2019-10-22 11:24:12,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:24:12" (2/3) ... [2019-10-22 11:24:12,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2634ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:12, skipping insertion in model container [2019-10-22 11:24:12,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:12" (3/3) ... [2019-10-22 11:24:12,984 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2019-10-22 11:24:13,024 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,024 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,024 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,025 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,025 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,025 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,025 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,025 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,026 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,026 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,026 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,026 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,027 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,027 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,027 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,027 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,027 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,028 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,028 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,028 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,028 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,029 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,029 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,029 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,030 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,030 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,030 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,030 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,030 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,031 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:24:13,042 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:24:13,042 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:13,061 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:13,073 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:13,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:13,092 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:13,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:13,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:13,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:13,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:13,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:13,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:13,102 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 11:24:13,248 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 11:24:13,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 11:24:13,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 11:24:13,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:13,269 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:13,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:13,277 INFO L82 PathProgramCache]: Analyzing trace with hash 995279891, now seen corresponding path program 1 times [2019-10-22 11:24:13,285 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:13,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552099198] [2019-10-22 11:24:13,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:13,285 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:13,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:13,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552099198] [2019-10-22 11:24:13,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:13,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:24:13,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790195423] [2019-10-22 11:24:13,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:24:13,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:13,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:24:13,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:24:13,662 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 11:24:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:13,788 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 11:24:13,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:13,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 11:24:13,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:13,821 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 11:24:13,821 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 11:24:13,822 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:13,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 11:24:13,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 11:24:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 11:24:13,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 11:24:13,983 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 11:24:13,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:13,983 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 11:24:13,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:24:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 11:24:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 11:24:13,991 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:13,991 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:13,992 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash 709609587, now seen corresponding path program 1 times [2019-10-22 11:24:13,992 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:13,992 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682067419] [2019-10-22 11:24:13,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:13,993 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:13,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682067419] [2019-10-22 11:24:14,142 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,142 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 11:24:14,143 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82917020] [2019-10-22 11:24:14,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:14,144 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:14,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:14,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:14,147 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 11:24:14,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:14,233 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 11:24:14,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:14,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 11:24:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:14,239 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 11:24:14,240 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 11:24:14,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 11:24:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 11:24:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 11:24:14,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 11:24:14,284 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 11:24:14,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:14,285 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 11:24:14,285 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 11:24:14,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 11:24:14,287 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:14,288 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:14,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:14,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1535576563, now seen corresponding path program 1 times [2019-10-22 11:24:14,289 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:14,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800284060] [2019-10-22 11:24:14,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,289 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800284060] [2019-10-22 11:24:14,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:24:14,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574728527] [2019-10-22 11:24:14,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:14,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:14,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:14,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:14,432 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 11:24:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:14,538 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 11:24:14,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:14,539 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 11:24:14,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:14,543 INFO L225 Difference]: With dead ends: 819 [2019-10-22 11:24:14,544 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 11:24:14,544 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:24:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 11:24:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 11:24:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 11:24:14,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 11:24:14,570 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 11:24:14,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:14,570 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 11:24:14,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:14,571 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 11:24:14,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:24:14,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:14,573 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:14,573 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:14,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:14,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1711246699, now seen corresponding path program 1 times [2019-10-22 11:24:14,574 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:14,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434894418] [2019-10-22 11:24:14,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434894418] [2019-10-22 11:24:14,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 11:24:14,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105501879] [2019-10-22 11:24:14,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:14,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:14,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:14,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:14,699 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2019-10-22 11:24:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:14,803 INFO L93 Difference]: Finished difference Result 1107 states and 3290 transitions. [2019-10-22 11:24:14,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:24:14,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 11:24:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:14,807 INFO L225 Difference]: With dead ends: 1107 [2019-10-22 11:24:14,807 INFO L226 Difference]: Without dead ends: 591 [2019-10-22 11:24:14,808 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:24:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2019-10-22 11:24:14,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2019-10-22 11:24:14,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-22 11:24:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 1754 transitions. [2019-10-22 11:24:14,828 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 1754 transitions. Word has length 32 [2019-10-22 11:24:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:14,829 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 1754 transitions. [2019-10-22 11:24:14,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 1754 transitions. [2019-10-22 11:24:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 11:24:14,830 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:14,831 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:14,831 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:14,831 INFO L82 PathProgramCache]: Analyzing trace with hash 299785013, now seen corresponding path program 2 times [2019-10-22 11:24:14,832 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:24:14,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998949117] [2019-10-22 11:24:14,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,832 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:24:14,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:24:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998949117] [2019-10-22 11:24:14,986 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,986 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 11:24:14,986 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248017647] [2019-10-22 11:24:14,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 11:24:14,987 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:24:14,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 11:24:14,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:14,988 INFO L87 Difference]: Start difference. First operand 591 states and 1754 transitions. Second operand 7 states. [2019-10-22 11:24:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:15,270 INFO L93 Difference]: Finished difference Result 863 states and 2562 transitions. [2019-10-22 11:24:15,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-22 11:24:15,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-10-22 11:24:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:15,271 INFO L225 Difference]: With dead ends: 863 [2019-10-22 11:24:15,271 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:15,271 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2019-10-22 11:24:15,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:15,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:15,272 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 11:24:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:15,273 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:15,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 11:24:15,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:15,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:15,276 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:24:15,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:15 BasicIcfg [2019-10-22 11:24:15,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:15,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:15,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:15,279 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:15,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:12" (3/4) ... [2019-10-22 11:24:15,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:15,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 11:24:15,289 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 11:24:15,290 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 11:24:15,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 11:24:15,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:24:15,332 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_52e82515-0bef-4401-ac3a-1a3339345757/bin/utaipan/witness.graphml [2019-10-22 11:24:15,332 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:15,334 INFO L168 Benchmark]: Toolchain (without parser) took 3520.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.5 MB in the beginning and 807.9 MB in the end (delta: 132.6 MB). Peak memory consumption was 250.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,334 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:15,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:15,335 INFO L168 Benchmark]: Boogie Preprocessor took 44.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:15,336 INFO L168 Benchmark]: RCFGBuilder took 476.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,336 INFO L168 Benchmark]: TraceAbstraction took 2305.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 807.9 MB in the end (delta: 244.3 MB). Peak memory consumption was 244.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,336 INFO L168 Benchmark]: Witness Printer took 54.06 ms. Allocated memory is still 1.1 GB. Free memory is still 807.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:15,338 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 476.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2305.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 807.9 MB in the end (delta: 244.3 MB). Peak memory consumption was 244.3 MB. Max. memory is 11.5 GB. * Witness Printer took 54.06 ms. Allocated memory is still 1.1 GB. Free memory is still 807.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 372 SDslu, 619 SDs, 0 SdLazy, 80 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 12137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...