./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc157475d6c321934f68f6b441d83c0582720461 .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 12:24:44,345 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:24:44,346 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:24:44,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:24:44,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:24:44,355 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:24:44,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:24:44,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:24:44,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:24:44,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:24:44,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:24:44,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:24:44,360 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:24:44,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:24:44,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:24:44,362 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:24:44,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:24:44,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:24:44,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:24:44,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:24:44,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:24:44,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:24:44,368 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:24:44,368 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:24:44,368 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:24:44,369 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:24:44,369 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:24:44,369 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:24:44,370 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:24:44,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:24:44,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:24:44,371 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:24:44,371 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:24:44,371 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:24:44,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:24:44,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:24:44,372 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 12:24:44,380 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:24:44,380 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:24:44,380 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:24:44,381 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:24:44,381 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:24:44,381 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:24:44,381 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:24:44,381 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:24:44,381 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:24:44,382 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:24:44,382 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:24:44,382 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:24:44,382 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:24:44,383 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:24:44,383 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:24:44,383 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:24:44,383 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:24:44,383 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:24:44,383 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:24:44,384 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:24:44,384 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 12:24:44,384 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:24:44,384 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:24:44,384 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:24:44,384 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:24:44,385 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:24:44,385 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:24:44,386 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:24:44,386 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:24:44,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:24:44,386 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:24:44,386 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_81e13840-0c19-4ef9-ae62-0c43fb3d129d/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc157475d6c321934f68f6b441d83c0582720461 [2018-11-23 12:24:44,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:24:44,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:24:44,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:24:44,426 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:24:44,426 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:24:44,426 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c [2018-11-23 12:24:44,462 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/data/d1716df47/1296460b911c4d87916796b5ee57b938/FLAG02d8dbede [2018-11-23 12:24:44,753 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:24:44,754 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c [2018-11-23 12:24:44,757 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/data/d1716df47/1296460b911c4d87916796b5ee57b938/FLAG02d8dbede [2018-11-23 12:24:44,765 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/data/d1716df47/1296460b911c4d87916796b5ee57b938 [2018-11-23 12:24:44,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:24:44,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:24:44,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:24:44,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:24:44,771 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:24:44,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9ee6b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44, skipping insertion in model container [2018-11-23 12:24:44,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:24:44,791 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:24:44,896 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:24:44,898 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:24:44,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:24:44,914 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:24:44,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44 WrapperNode [2018-11-23 12:24:44,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:24:44,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:24:44,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:24:44,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:24:44,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:24:44,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:24:44,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:24:44,928 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:24:44,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... [2018-11-23 12:24:44,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:24:44,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:24:44,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:24:44,940 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:24:44,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/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 [2018-11-23 12:24:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:24:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:24:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:24:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:24:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:24:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:24:45,151 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:24:45,151 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 12:24:45,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:45 BoogieIcfgContainer [2018-11-23 12:24:45,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:24:45,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:24:45,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:24:45,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:24:45,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:24:44" (1/3) ... [2018-11-23 12:24:45,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56115696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:45, skipping insertion in model container [2018-11-23 12:24:45,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:44" (2/3) ... [2018-11-23 12:24:45,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56115696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:45, skipping insertion in model container [2018-11-23 12:24:45,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:45" (3/3) ... [2018-11-23 12:24:45,157 INFO L112 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c [2018-11-23 12:24:45,163 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:24:45,168 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 12:24:45,179 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 12:24:45,199 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:24:45,199 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:24:45,199 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:24:45,199 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:24:45,199 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:24:45,199 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:24:45,200 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:24:45,200 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:24:45,212 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-23 12:24:45,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 12:24:45,216 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:24:45,217 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:24:45,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 12:24:45,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:24:45,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165563, now seen corresponding path program 1 times [2018-11-23 12:24:45,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:24:45,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:24:45,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:24:45,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:24:45,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:24:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:24:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:24:45,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:24:45,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 12:24:45,366 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:24:45,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:24:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:24:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:24:45,378 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 4 states. [2018-11-23 12:24:45,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:24:45,448 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2018-11-23 12:24:45,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:24:45,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 12:24:45,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:24:45,457 INFO L225 Difference]: With dead ends: 28 [2018-11-23 12:24:45,458 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 12:24:45,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:24:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 12:24:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2018-11-23 12:24:45,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 12:24:45,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-11-23 12:24:45,481 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2018-11-23 12:24:45,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:24:45,481 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-23 12:24:45,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:24:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-23 12:24:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 12:24:45,482 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:24:45,482 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:24:45,482 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 12:24:45,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:24:45,483 INFO L82 PathProgramCache]: Analyzing trace with hash 350540557, now seen corresponding path program 1 times [2018-11-23 12:24:45,483 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:24:45,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:24:45,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:24:45,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:24:45,484 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:24:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:24:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 12:24:45,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:24:45,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 12:24:45,525 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:24:45,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:24:45,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:24:45,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:24:45,526 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2018-11-23 12:24:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:24:45,574 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-11-23 12:24:45,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 12:24:45,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-23 12:24:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:24:45,575 INFO L225 Difference]: With dead ends: 14 [2018-11-23 12:24:45,575 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:24:45,576 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:24:45,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:24:45,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:24:45,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:24:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:24:45,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-23 12:24:45,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:24:45,577 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:24:45,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:24:45,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:24:45,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:24:45,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:24:45,596 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 12:24:45,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 12:24:45,597 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 28) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L444 ceAbstractionStarter]: At program point L23-1(lines 17 26) the Hoare annotation is: (<= 0 (+ main_~x~0 2147483648)) [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-23 12:24:45,597 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 28) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 28) the Hoare annotation is: true [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-23 12:24:45,598 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-11-23 12:24:45,599 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2018-11-23 12:24:45,599 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-23 12:24:45,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:24:45 BoogieIcfgContainer [2018-11-23 12:24:45,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:24:45,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:24:45,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:24:45,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:24:45,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:45" (3/4) ... [2018-11-23 12:24:45,610 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:24:45,615 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:24:45,615 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:24:45,618 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 12:24:45,618 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 12:24:45,618 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:24:45,645 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_81e13840-0c19-4ef9-ae62-0c43fb3d129d/bin-2019/utaipan/witness.graphml [2018-11-23 12:24:45,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:24:45,646 INFO L168 Benchmark]: Toolchain (without parser) took 878.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -114.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,647 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:24:45,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.31 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:24:45,648 INFO L168 Benchmark]: Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,648 INFO L168 Benchmark]: RCFGBuilder took 211.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,649 INFO L168 Benchmark]: TraceAbstraction took 454.71 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,649 INFO L168 Benchmark]: Witness Printer took 38.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:24:45,652 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.23 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 12.31 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.18 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 211.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 454.71 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 38.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 33 SDs, 0 SdLazy, 30 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 9 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 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...