./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.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_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/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 922bc5e57819a2e5059028ce62005da2daf2559b .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:31:20,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:31:20,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:31:20,939 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:31:20,939 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:31:20,940 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:31:20,941 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:31:20,942 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:31:20,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:31:20,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:31:20,944 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:31:20,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:31:20,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:31:20,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:31:20,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:31:20,947 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:31:20,948 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:31:20,949 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:31:20,951 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:31:20,952 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:31:20,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:31:20,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:31:20,955 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:31:20,955 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:31:20,955 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:31:20,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:31:20,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:31:20,957 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:31:20,958 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:31:20,958 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:31:20,959 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:31:20,959 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:31:20,959 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:31:20,959 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:31:20,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:31:20,960 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:31:20,961 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:31:20,971 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:31:20,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:31:20,971 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:31:20,972 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:31:20,972 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:31:20,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:31:20,972 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:31:20,972 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:31:20,972 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:31:20,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:31:20,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:31:20,973 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:31:20,973 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:31:20,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:31:20,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:31:20,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:31:20,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:31:20,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:31:20,976 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:31:20,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:31:20,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:31:20,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:31:20,977 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_abbe5c12-5eec-4789-bafb-6a7410fa14c6/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 -> 922bc5e57819a2e5059028ce62005da2daf2559b [2018-11-18 17:31:21,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:31:21,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:31:21,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:31:21,016 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:31:21,016 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:31:21,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/../../sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-11-18 17:31:21,060 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/data/428e56565/3601d54cc3ad4e1288e9db8029ae23e7/FLAGf27405859 [2018-11-18 17:31:21,464 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:31:21,464 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/sv-benchmarks/c/loops/array_true-unreach-call_true-termination.i [2018-11-18 17:31:21,469 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/data/428e56565/3601d54cc3ad4e1288e9db8029ae23e7/FLAGf27405859 [2018-11-18 17:31:21,478 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/data/428e56565/3601d54cc3ad4e1288e9db8029ae23e7 [2018-11-18 17:31:21,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:31:21,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:31:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:31:21,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:31:21,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:31:21,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21, skipping insertion in model container [2018-11-18 17:31:21,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:31:21,505 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:31:21,616 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:31:21,619 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:31:21,631 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:31:21,643 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:31:21,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21 WrapperNode [2018-11-18 17:31:21,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:31:21,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:31:21,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:31:21,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:31:21,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:31:21,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:31:21,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:31:21,661 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:31:21,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... [2018-11-18 17:31:21,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:31:21,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:31:21,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:31:21,710 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:31:21,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/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 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:31:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:31:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:31:21,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:31:21,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:31:21,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:31:21,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 17:31:21,867 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:31:21,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:21 BoogieIcfgContainer [2018-11-18 17:31:21,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:31:21,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:31:21,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:31:21,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:31:21,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:31:21" (1/3) ... [2018-11-18 17:31:21,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d4b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:31:21, skipping insertion in model container [2018-11-18 17:31:21,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:31:21" (2/3) ... [2018-11-18 17:31:21,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d4b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:31:21, skipping insertion in model container [2018-11-18 17:31:21,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:21" (3/3) ... [2018-11-18 17:31:21,872 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call_true-termination.i [2018-11-18 17:31:21,881 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:31:21,887 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:31:21,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:31:21,914 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:31:21,914 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:31:21,914 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:31:21,914 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:31:21,914 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:31:21,914 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:31:21,915 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:31:21,915 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:31:21,926 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 17:31:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 17:31:21,929 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:21,930 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:21,931 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:31:21,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash 296275345, now seen corresponding path program 1 times [2018-11-18 17:31:21,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:21,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:21,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:21,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:21,973 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:22,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:22,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:31:22,029 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:22,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:31:22,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:31:22,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:31:22,045 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-18 17:31:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:22,057 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2018-11-18 17:31:22,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:31:22,058 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-18 17:31:22,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:22,063 INFO L225 Difference]: With dead ends: 36 [2018-11-18 17:31:22,063 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 17:31:22,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:31:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 17:31:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 17:31:22,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 17:31:22,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 17:31:22,092 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2018-11-18 17:31:22,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:22,092 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 17:31:22,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:31:22,092 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 17:31:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 17:31:22,093 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:22,093 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:22,093 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:31:22,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:22,094 INFO L82 PathProgramCache]: Analyzing trace with hash 665169549, now seen corresponding path program 1 times [2018-11-18 17:31:22,094 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:22,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:22,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:22,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:22,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:22,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:31:22,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:31:22,189 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:31:22,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:31:22,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:31:22,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:31:22,190 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 17:31:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:22,216 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-11-18 17:31:22,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:31:22,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 17:31:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:22,217 INFO L225 Difference]: With dead ends: 26 [2018-11-18 17:31:22,217 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 17:31:22,218 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:31:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 17:31:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-18 17:31:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 17:31:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-18 17:31:22,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-18 17:31:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:22,221 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-18 17:31:22,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:31:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-18 17:31:22,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 17:31:22,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:31:22,222 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:31:22,222 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:31:22,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:22,223 INFO L82 PathProgramCache]: Analyzing trace with hash 361632356, now seen corresponding path program 1 times [2018-11-18 17:31:22,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:31:22,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:22,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:22,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:31:22,224 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:31:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:22,502 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 20 [2018-11-18 17:31:22,638 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 36 [2018-11-18 17:31:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:22,820 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:31:22,820 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:31:22,821 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-11-18 17:31:22,822 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [21], [25], [29], [32], [34], [40], [41], [42], [44] [2018-11-18 17:31:22,846 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:31:22,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:31:22,956 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 17:31:22,957 INFO L272 AbstractInterpreter]: Visited 16 different actions 19 times. Merged at 2 different actions 2 times. Never widened. Performed 101 root evaluator evaluations with a maximum evaluation depth of 3. Performed 101 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 22 variables. [2018-11-18 17:31:22,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:31:22,965 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 17:31:22,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:31:22,965 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:31:22,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:31:22,983 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 17:31:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:31:23,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:31:23,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 33 [2018-11-18 17:31:23,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-18 17:31:23,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:7 [2018-11-18 17:31:23,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-18 17:31:23,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-18 17:31:23,223 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-18 17:31:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:23,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:31:23,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 45 [2018-11-18 17:31:23,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-11-18 17:31:23,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,399 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2018-11-18 17:31:23,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-11-18 17:31:23,462 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,468 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 17:31:23,485 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-18 17:31:23,485 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 12 variables, input treesize:157, output treesize:47 [2018-11-18 17:31:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:31:23,535 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 17:31:23,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 19 [2018-11-18 17:31:23,535 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 17:31:23,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 17:31:23,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 17:31:23,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-11-18 17:31:23,536 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 13 states. [2018-11-18 17:31:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:31:23,679 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-18 17:31:23,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 17:31:23,679 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2018-11-18 17:31:23,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:31:23,679 INFO L225 Difference]: With dead ends: 26 [2018-11-18 17:31:23,679 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:31:23,680 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=477, Unknown=0, NotChecked=0, Total=600 [2018-11-18 17:31:23,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:31:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:31:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:31:23,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:31:23,680 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-18 17:31:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:31:23,680 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:31:23,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 17:31:23,681 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:31:23,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:31:23,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:31:23,733 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:31:23,733 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:31:23,733 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:31:23,733 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:31:23,733 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:31:23,734 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:31:23,734 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2018-11-18 17:31:23,734 INFO L421 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (= |main_~#array~0.offset| 0) (= main_~SIZE~0 1) (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (<= main_~menor~0 |main_#t~mem5|) (= main_~j~0 1)) [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-18 17:31:23,734 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-11-18 17:31:23,735 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 24) the Hoare annotation is: (let ((.cse0 (= |main_~#array~0.offset| 0)) (.cse1 (= main_~SIZE~0 1))) (or (and .cse0 .cse1 (= main_~j~0 0)) (and .cse0 .cse1 (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) |main_~#array~0.offset|)) (= main_~j~0 1)))) [2018-11-18 17:31:23,735 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 24) no Hoare annotation was computed. [2018-11-18 17:31:23,735 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-11-18 17:31:23,735 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 17:31:23,735 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 17:31:23,735 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 17:31:23,735 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 17:31:23,736 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 17:31:23,736 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 17:31:23,739 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 17:31:23,743 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 17:31:23,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:31:23 BoogieIcfgContainer [2018-11-18 17:31:23,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:31:23,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:31:23,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:31:23,745 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:31:23,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:31:21" (3/4) ... [2018-11-18 17:31:23,747 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:31:23,750 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:31:23,750 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:31:23,751 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 17:31:23,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-18 17:31:23,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 17:31:23,753 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:31:23,779 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_abbe5c12-5eec-4789-bafb-6a7410fa14c6/bin-2019/utaipan/witness.graphml [2018-11-18 17:31:23,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:31:23,780 INFO L168 Benchmark]: Toolchain (without parser) took 2299.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 953.8 MB in the beginning and 896.8 MB in the end (delta: 56.9 MB). Peak memory consumption was 226.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,780 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:31:23,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.37 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.87 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,781 INFO L168 Benchmark]: Boogie Preprocessor took 49.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -227.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,782 INFO L168 Benchmark]: RCFGBuilder took 157.18 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,782 INFO L168 Benchmark]: TraceAbstraction took 1876.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 900.1 MB in the end (delta: 250.6 MB). Peak memory consumption was 250.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,782 INFO L168 Benchmark]: Witness Printer took 35.08 ms. Allocated memory is still 1.2 GB. Free memory was 900.1 MB in the beginning and 896.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:31:23,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.37 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.87 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -227.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 157.18 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1876.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 900.1 MB in the end (delta: 250.6 MB). Peak memory consumption was 250.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.08 ms. Allocated memory is still 1.2 GB. Free memory was 900.1 MB in the beginning and 896.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - InvariantResult [Line: 19]: Loop Invariant [2018-11-18 17:31:23,788 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 17:31:23,788 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((array == 0 && SIZE == 1) && j == 0) || (((array == 0 && SIZE == 1) && menor <= unknown-#memory_int-unknown[array][array]) && j == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 12 SDslu, 67 SDs, 0 SdLazy, 62 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 53 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 8625 SizeOfPredicates, 11 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...