./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i --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_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/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 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 08:25:21,736 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 08:25:21,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 08:25:21,745 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 08:25:21,745 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 08:25:21,746 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 08:25:21,747 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 08:25:21,748 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 08:25:21,749 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 08:25:21,750 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 08:25:21,750 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 08:25:21,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 08:25:21,751 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 08:25:21,752 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 08:25:21,753 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 08:25:21,753 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 08:25:21,754 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 08:25:21,755 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 08:25:21,757 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 08:25:21,758 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 08:25:21,759 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 08:25:21,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 08:25:21,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 08:25:21,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 08:25:21,761 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 08:25:21,761 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 08:25:21,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 08:25:21,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 08:25:21,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 08:25:21,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 08:25:21,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 08:25:21,763 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 08:25:21,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 08:25:21,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 08:25:21,764 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 08:25:21,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 08:25:21,765 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 08:25:21,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 08:25:21,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 08:25:21,773 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 08:25:21,773 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 08:25:21,773 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 08:25:21,774 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 08:25:21,774 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 08:25:21,774 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 08:25:21,775 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 08:25:21,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 08:25:21,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 08:25:21,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 08:25:21,777 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 08:25:21,777 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_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/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 -> 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 [2018-12-09 08:25:21,801 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 08:25:21,810 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 08:25:21,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 08:25:21,814 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 08:25:21,814 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 08:25:21,815 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i [2018-12-09 08:25:21,855 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/data/b4ff9b648/4b43966ce37c4bca8f069901245cc4c7/FLAG49d89c9e3 [2018-12-09 08:25:22,208 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 08:25:22,208 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion_true-no-overflow_true-termination.c.i [2018-12-09 08:25:22,213 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/data/b4ff9b648/4b43966ce37c4bca8f069901245cc4c7/FLAG49d89c9e3 [2018-12-09 08:25:22,599 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/data/b4ff9b648/4b43966ce37c4bca8f069901245cc4c7 [2018-12-09 08:25:22,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 08:25:22,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 08:25:22,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 08:25:22,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 08:25:22,609 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 08:25:22,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d1c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22, skipping insertion in model container [2018-12-09 08:25:22,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 08:25:22,633 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 08:25:22,758 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:25:22,762 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 08:25:22,812 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 08:25:22,831 INFO L195 MainTranslator]: Completed translation [2018-12-09 08:25:22,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22 WrapperNode [2018-12-09 08:25:22,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 08:25:22,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 08:25:22,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 08:25:22,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 08:25:22,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 08:25:22,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 08:25:22,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 08:25:22,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 08:25:22,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... [2018-12-09 08:25:22,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 08:25:22,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 08:25:22,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 08:25:22,860 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 08:25:22,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/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 [2018-12-09 08:25:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 08:25:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 08:25:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 08:25:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 08:25:22,891 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 08:25:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 08:25:22,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 08:25:22,982 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 08:25:22,983 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 08:25:22,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:22 BoogieIcfgContainer [2018-12-09 08:25:22,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 08:25:22,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 08:25:22,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 08:25:22,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 08:25:22,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:25:22" (1/3) ... [2018-12-09 08:25:22,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aadecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:25:22, skipping insertion in model container [2018-12-09 08:25:22,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:25:22" (2/3) ... [2018-12-09 08:25:22,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aadecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:25:22, skipping insertion in model container [2018-12-09 08:25:22,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:22" (3/3) ... [2018-12-09 08:25:22,989 INFO L112 eAbstractionObserver]: Analyzing ICFG IntegerPromotion_true-no-overflow_true-termination.c.i [2018-12-09 08:25:22,997 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 08:25:23,003 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 08:25:23,018 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 08:25:23,043 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 08:25:23,043 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 08:25:23,043 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 08:25:23,043 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 08:25:23,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 08:25:23,043 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 08:25:23,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 08:25:23,043 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 08:25:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 08:25:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 08:25:23,061 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:23,061 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:25:23,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 08:25:23,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:23,068 INFO L82 PathProgramCache]: Analyzing trace with hash -2123086959, now seen corresponding path program 1 times [2018-12-09 08:25:23,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:23,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:23,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:23,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:23,111 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:23,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:25:23,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 08:25:23,172 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:23,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 08:25:23,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 08:25:23,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 08:25:23,183 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-12-09 08:25:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:25:23,204 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-09 08:25:23,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 08:25:23,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-09 08:25:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:25:23,211 INFO L225 Difference]: With dead ends: 18 [2018-12-09 08:25:23,212 INFO L226 Difference]: Without dead ends: 12 [2018-12-09 08:25:23,213 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 08:25:23,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-09 08:25:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-09 08:25:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-09 08:25:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-12-09 08:25:23,234 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 7 [2018-12-09 08:25:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:25:23,235 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-12-09 08:25:23,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 08:25:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-09 08:25:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 08:25:23,235 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 08:25:23,235 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 08:25:23,235 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 08:25:23,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 08:25:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1391186250, now seen corresponding path program 1 times [2018-12-09 08:25:23,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 08:25:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:23,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 08:25:23,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 08:25:23,237 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 08:25:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 08:25:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 08:25:23,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 08:25:23,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 08:25:23,257 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 08:25:23,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 08:25:23,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 08:25:23,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 08:25:23,259 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 3 states. [2018-12-09 08:25:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 08:25:23,266 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-09 08:25:23,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 08:25:23,266 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-09 08:25:23,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 08:25:23,267 INFO L225 Difference]: With dead ends: 12 [2018-12-09 08:25:23,267 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 08:25:23,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 08:25:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 08:25:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 08:25:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 08:25:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 08:25:23,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-12-09 08:25:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 08:25:23,268 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 08:25:23,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 08:25:23,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 08:25:23,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 08:25:23,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 08:25:23,280 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:25:23,280 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 08:25:23,280 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:25:23,280 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 08:25:23,280 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 08:25:23,280 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 08:25:23,280 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 331 336) the Hoare annotation is: true [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point L333(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 331 336) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point L333-1(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point L333-2(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,281 INFO L448 ceAbstractionStarter]: For program point L333-3(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,282 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2018-12-09 08:25:23,282 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 331 336) no Hoare annotation was computed. [2018-12-09 08:25:23,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:25:23 BoogieIcfgContainer [2018-12-09 08:25:23,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 08:25:23,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 08:25:23,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 08:25:23,285 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 08:25:23,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:25:22" (3/4) ... [2018-12-09 08:25:23,288 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 08:25:23,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 08:25:23,292 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 08:25:23,295 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 08:25:23,295 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 08:25:23,295 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 08:25:23,295 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 08:25:23,319 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2e2aeb6f-39f7-432c-9fe9-6beef21ce6d8/bin-2019/utaipan/witness.graphml [2018-12-09 08:25:23,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 08:25:23,320 INFO L168 Benchmark]: Toolchain (without parser) took 717.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -89.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-09 08:25:23,321 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:25:23,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-09 08:25:23,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:25:23,322 INFO L168 Benchmark]: Boogie Preprocessor took 10.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 08:25:23,322 INFO L168 Benchmark]: RCFGBuilder took 123.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-12-09 08:25:23,322 INFO L168 Benchmark]: TraceAbstraction took 300.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 08:25:23,323 INFO L168 Benchmark]: Witness Printer took 35.02 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 08:25:23,325 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 300.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 35.02 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 4 error locations. SAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 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...