./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/terminator_03_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_03_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/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 a269e8b2c2a55ee83f0497e8cbfb0a6499d0714f ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:12:03,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:12:03,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:12:03,874 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:12:03,874 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:12:03,875 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:12:03,876 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:12:03,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:12:03,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:12:03,887 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:12:03,888 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:12:03,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:12:03,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:12:03,890 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:12:03,890 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:12:03,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:12:03,891 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:12:03,892 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:12:03,896 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:12:03,897 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:12:03,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:12:03,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:12:03,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:12:03,900 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:12:03,900 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:12:03,901 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:12:03,905 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:12:03,906 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:12:03,908 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:12:03,909 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:12:03,910 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:12:03,911 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:12:03,911 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:12:03,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:12:03,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:12:03,912 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:12:03,912 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:12:03,928 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:12:03,930 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:12:03,931 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:12:03,931 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:12:03,932 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:12:03,932 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:12:03,932 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:12:03,933 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:12:03,933 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:12:03,933 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:12:03,933 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:12:03,934 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:12:03,935 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:12:03,935 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:12:03,936 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:12:03,937 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:12:03,937 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:12:03,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:12:03,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:12:03,937 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:12:03,937 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:12:03,937 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:12:03,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:12:03,938 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:12:03,938 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:12:03,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:12:03,938 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:12:03,938 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_e09576d5-632f-471f-8fb0-1736523f123d/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 -> a269e8b2c2a55ee83f0497e8cbfb0a6499d0714f [2018-10-26 23:12:03,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:12:03,998 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:12:04,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:12:04,002 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:12:04,002 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:12:04,003 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/../../sv-benchmarks/c/loops/terminator_03_true-unreach-call_true-termination.i [2018-10-26 23:12:04,044 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/data/b0280665f/403f5c8db60c4b49b02b6b84f024b693/FLAGd1ecf46dc [2018-10-26 23:12:04,408 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:12:04,409 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/sv-benchmarks/c/loops/terminator_03_true-unreach-call_true-termination.i [2018-10-26 23:12:04,413 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/data/b0280665f/403f5c8db60c4b49b02b6b84f024b693/FLAGd1ecf46dc [2018-10-26 23:12:04,424 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/data/b0280665f/403f5c8db60c4b49b02b6b84f024b693 [2018-10-26 23:12:04,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:12:04,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:12:04,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:12:04,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:12:04,431 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:12:04,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087c74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04, skipping insertion in model container [2018-10-26 23:12:04,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:12:04,458 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:12:04,569 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:12:04,571 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:12:04,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:12:04,592 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:12:04,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04 WrapperNode [2018-10-26 23:12:04,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:12:04,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:12:04,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:12:04,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:12:04,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:12:04,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:12:04,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:12:04,609 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:12:04,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... [2018-10-26 23:12:04,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:12:04,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:12:04,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:12:04,625 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:12:04,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/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 [2018-10-26 23:12:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:12:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:12:04,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:12:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:12:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:12:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:12:04,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:12:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:12:05,006 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:12:05,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:05 BoogieIcfgContainer [2018-10-26 23:12:05,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:12:05,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:12:05,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:12:05,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:12:05,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:12:04" (1/3) ... [2018-10-26 23:12:05,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c09b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:12:05, skipping insertion in model container [2018-10-26 23:12:05,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:12:04" (2/3) ... [2018-10-26 23:12:05,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c09b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:12:05, skipping insertion in model container [2018-10-26 23:12:05,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:05" (3/3) ... [2018-10-26 23:12:05,013 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03_true-unreach-call_true-termination.i [2018-10-26 23:12:05,021 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:12:05,027 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:12:05,040 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:12:05,072 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:12:05,073 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:12:05,073 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:12:05,073 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:12:05,073 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:12:05,073 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:12:05,073 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:12:05,073 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:12:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-10-26 23:12:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 23:12:05,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:12:05,104 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:12:05,115 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:12:05,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:12:05,120 INFO L82 PathProgramCache]: Analyzing trace with hash 439143249, now seen corresponding path program 1 times [2018-10-26 23:12:05,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:12:05,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:12:05,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:12:05,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:12:05,165 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:12:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:05,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:12:05,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 23:12:05,353 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:12:05,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 23:12:05,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 23:12:05,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 23:12:05,365 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2018-10-26 23:12:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:12:05,456 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-10-26 23:12:05,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 23:12:05,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-26 23:12:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:12:05,462 INFO L225 Difference]: With dead ends: 41 [2018-10-26 23:12:05,463 INFO L226 Difference]: Without dead ends: 14 [2018-10-26 23:12:05,465 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:12:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-26 23:12:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-26 23:12:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-26 23:12:05,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-26 23:12:05,495 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-26 23:12:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:12:05,495 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-26 23:12:05,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 23:12:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-26 23:12:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 23:12:05,496 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:12:05,496 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:12:05,497 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:12:05,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:12:05,497 INFO L82 PathProgramCache]: Analyzing trace with hash -216018202, now seen corresponding path program 1 times [2018-10-26 23:12:05,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:12:05,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:12:05,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:12:05,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:12:05,498 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:12:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:12:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:12:05,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:12:05,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:12:05,577 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:12:05,578 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:12:05,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:12:05,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:12:05,579 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-26 23:12:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:12:05,631 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-26 23:12:05,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 23:12:05,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-26 23:12:05,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:12:05,631 INFO L225 Difference]: With dead ends: 14 [2018-10-26 23:12:05,632 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:12:05,632 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:12:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:12:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:12:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:12:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:12:05,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-26 23:12:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:12:05,634 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:12:05,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:12:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:12:05,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:12:05,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:12:05,678 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 23:12:05,679 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:12:05,679 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:12:05,679 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 23:12:05,679 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:12:05,679 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:12:05,679 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2018-10-26 23:12:05,679 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed. [2018-10-26 23:12:05,679 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L421 ceAbstractionStarter]: At program point L15-1(lines 15 19) the Hoare annotation is: (or (< 99 main_~x~0) (<= main_~y~0 0)) [2018-10-26 23:12:05,680 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: (< 0 main_~y~0) [2018-10-26 23:12:05,680 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 23:12:05,680 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 23:12:05,681 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 23:12:05,681 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 23:12:05,681 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 23:12:05,681 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 23:12:05,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:12:05 BoogieIcfgContainer [2018-10-26 23:12:05,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:12:05,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:12:05,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:12:05,695 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:12:05,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:12:05" (3/4) ... [2018-10-26 23:12:05,698 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:12:05,703 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:12:05,703 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:12:05,703 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:12:05,706 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-10-26 23:12:05,707 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 23:12:05,707 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 23:12:05,742 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e09576d5-632f-471f-8fb0-1736523f123d/bin-2019/utaipan/witness.graphml [2018-10-26 23:12:05,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:12:05,743 INFO L168 Benchmark]: Toolchain (without parser) took 1315.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,744 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:12:05,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:12:05,745 INFO L168 Benchmark]: Boogie Preprocessor took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,745 INFO L168 Benchmark]: RCFGBuilder took 381.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -234.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,746 INFO L168 Benchmark]: TraceAbstraction took 687.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,746 INFO L168 Benchmark]: Witness Printer took 46.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:12:05,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 164.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 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 15.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 381.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.7 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -234.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 687.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 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.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: 16]: Loop Invariant Derived loop invariant: 0 < y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 10 SDslu, 86 SDs, 0 SdLazy, 26 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 15 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 472 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...