./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/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 d1222cbe619907da17220c6769d95d8d6fd1064c ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:57:43,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:57:43,180 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:57:43,186 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:57:43,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:57:43,187 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:57:43,188 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:57:43,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:57:43,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:57:43,191 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:57:43,192 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:57:43,192 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:57:43,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:57:43,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:57:43,194 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:57:43,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:57:43,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:57:43,197 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:57:43,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:57:43,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:57:43,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:57:43,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:57:43,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:57:43,204 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:57:43,204 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:57:43,205 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:57:43,206 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:57:43,206 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:57:43,207 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:57:43,208 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:57:43,208 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:57:43,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:57:43,209 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:57:43,209 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:57:43,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:57:43,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:57:43,210 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-03 05:57:43,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:57:43,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:57:43,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:57:43,222 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:57:43,222 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:57:43,222 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 05:57:43,223 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 05:57:43,224 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:57:43,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:57:43,224 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 05:57:43,224 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:57:43,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 05:57:43,225 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 05:57:43,225 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:57:43,226 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:57:43,226 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:57:43,226 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:57:43,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:57:43,226 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:57:43,226 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:57:43,227 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 05:57:43,227 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 05:57:43,227 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:57:43,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 05:57:43,227 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 05:57:43,227 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_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/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 -> d1222cbe619907da17220c6769d95d8d6fd1064c [2018-12-03 05:57:43,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:57:43,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:57:43,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:57:43,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:57:43,258 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:57:43,258 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3_true-termination_true-no-overflow.c [2018-12-03 05:57:43,293 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/data/a6831df9e/090361e7e6e34fe0bc48ed69f71c862e/FLAGf97f73d12 [2018-12-03 05:57:43,738 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:57:43,738 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3_true-termination_true-no-overflow.c [2018-12-03 05:57:43,741 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/data/a6831df9e/090361e7e6e34fe0bc48ed69f71c862e/FLAGf97f73d12 [2018-12-03 05:57:43,749 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/data/a6831df9e/090361e7e6e34fe0bc48ed69f71c862e [2018-12-03 05:57:43,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:57:43,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:57:43,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:57:43,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:57:43,754 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:57:43,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709ce3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43, skipping insertion in model container [2018-12-03 05:57:43,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:57:43,768 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:57:43,847 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:57:43,849 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:57:43,857 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:57:43,865 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:57:43,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43 WrapperNode [2018-12-03 05:57:43,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:57:43,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:57:43,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:57:43,866 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:57:43,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:57:43,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:57:43,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:57:43,878 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:57:43,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... [2018-12-03 05:57:43,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:57:43,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:57:43,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:57:43,890 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:57:43,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/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 [2018-12-03 05:57:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 05:57:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 05:57:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2018-12-03 05:57:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2018-12-03 05:57:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:57:43,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:57:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 05:57:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 05:57:44,038 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:57:44,039 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 05:57:44,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:57:44 BoogieIcfgContainer [2018-12-03 05:57:44,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:57:44,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:57:44,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:57:44,042 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:57:44,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:57:43" (1/3) ... [2018-12-03 05:57:44,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5877b5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:57:44, skipping insertion in model container [2018-12-03 05:57:44,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:57:43" (2/3) ... [2018-12-03 05:57:44,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5877b5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:57:44, skipping insertion in model container [2018-12-03 05:57:44,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:57:44" (3/3) ... [2018-12-03 05:57:44,045 INFO L112 eAbstractionObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3_true-termination_true-no-overflow.c [2018-12-03 05:57:44,052 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:57:44,057 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-03 05:57:44,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-03 05:57:44,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:57:44,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 05:57:44,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:57:44,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:57:44,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:57:44,088 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:57:44,088 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:57:44,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:57:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-12-03 05:57:44,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 05:57:44,108 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:57:44,108 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:57:44,110 INFO L423 AbstractCegarLoop]: === Iteration 1 === [fooErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fooErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 05:57:44,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:57:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash 443118076, now seen corresponding path program 1 times [2018-12-03 05:57:44,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:57:44,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:57:44,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:57:44,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:57:44,147 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:57:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:57:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:57:44,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:57:44,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:57:44,220 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:57:44,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:57:44,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:57:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:57:44,232 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-12-03 05:57:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:57:44,269 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-12-03 05:57:44,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:57:44,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-03 05:57:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:57:44,277 INFO L225 Difference]: With dead ends: 27 [2018-12-03 05:57:44,277 INFO L226 Difference]: Without dead ends: 16 [2018-12-03 05:57:44,279 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 05:57:44,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-03 05:57:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-12-03 05:57:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-03 05:57:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-03 05:57:44,301 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2018-12-03 05:57:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:57:44,301 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-03 05:57:44,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:57:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-03 05:57:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-03 05:57:44,302 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:57:44,302 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:57:44,302 INFO L423 AbstractCegarLoop]: === Iteration 2 === [fooErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fooErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 05:57:44,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:57:44,302 INFO L82 PathProgramCache]: Analyzing trace with hash 851758504, now seen corresponding path program 1 times [2018-12-03 05:57:44,302 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:57:44,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:57:44,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:57:44,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:57:44,303 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:57:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:57:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:57:44,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:57:44,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:57:44,321 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:57:44,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:57:44,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:57:44,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:57:44,323 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2018-12-03 05:57:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:57:44,338 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-03 05:57:44,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:57:44,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-03 05:57:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:57:44,339 INFO L225 Difference]: With dead ends: 16 [2018-12-03 05:57:44,339 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 05:57:44,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 05:57:44,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 05:57:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 05:57:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 05:57:44,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 05:57:44,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-12-03 05:57:44,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:57:44,340 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 05:57:44,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:57:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 05:57:44,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 05:57:44,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 05:57:44,378 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 05:57:44,378 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 05:57:44,378 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 05:57:44,378 INFO L448 ceAbstractionStarter]: For program point fooErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point fooEXIT(lines 14 16) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L444 ceAbstractionStarter]: At program point fooENTRY(lines 14 16) the Hoare annotation is: (or (and (<= ~x~0 2147483647) (<= 1 ~x~0)) (< 2147483647 |old(~x~0)|) (< |old(~x~0)| 1)) [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point fooFINAL(lines 14 16) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point fooErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (<= ~x~0 2147483647) [2018-12-03 05:57:44,379 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 05:57:44,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 05:57:44,379 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 19 30) the Hoare annotation is: (or (<= ~x~0 2147483647) (< 2147483647 |old(~x~0)|)) [2018-12-03 05:57:44,380 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (and (<= ~x~0 2147483647) (<= 1 ~x~0)) (< 2147483647 |old(~x~0)|)) [2018-12-03 05:57:44,380 INFO L444 ceAbstractionStarter]: At program point L26-1(lines 22 28) the Hoare annotation is: (or (<= ~x~0 2147483647) (< 2147483647 |old(~x~0)|)) [2018-12-03 05:57:44,380 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 30) no Hoare annotation was computed. [2018-12-03 05:57:44,380 INFO L444 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: (or (and (<= ~x~0 2147483647) (<= 1 ~x~0)) (< 2147483647 |old(~x~0)|)) [2018-12-03 05:57:44,380 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 27) no Hoare annotation was computed. [2018-12-03 05:57:44,380 INFO L448 ceAbstractionStarter]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2018-12-03 05:57:44,380 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 30) no Hoare annotation was computed. [2018-12-03 05:57:44,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:57:44 BoogieIcfgContainer [2018-12-03 05:57:44,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:57:44,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:57:44,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:57:44,388 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:57:44,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:57:44" (3/4) ... [2018-12-03 05:57:44,390 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 05:57:44,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 05:57:44,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2018-12-03 05:57:44,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 05:57:44,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-03 05:57:44,397 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 05:57:44,413 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x <= 2147483647 || 2147483647 < \old(x) [2018-12-03 05:57:44,420 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2d1e5a1e-f5f7-4d2a-a013-cfb8906b08dd/bin-2019/utaipan/witness.graphml [2018-12-03 05:57:44,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:57:44,421 INFO L168 Benchmark]: Toolchain (without parser) took 669.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 961.4 MB in the beginning and 1.0 GB in the end (delta: -48.3 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-12-03 05:57:44,422 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:57:44,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 113.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 949.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-03 05:57:44,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:57:44,422 INFO L168 Benchmark]: Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:57:44,423 INFO L168 Benchmark]: RCFGBuilder took 149.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -106.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-03 05:57:44,423 INFO L168 Benchmark]: TraceAbstraction took 347.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2018-12-03 05:57:44,423 INFO L168 Benchmark]: Witness Printer took 33.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:57:44,425 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 113.11 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 949.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -106.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 347.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Witness Printer took 33.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x <= 2147483647 || 2147483647 < \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 22 SDslu, 39 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 8 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 61 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 431 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...