./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices_true-no-overflow_false-termination.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices_true-no-overflow_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/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 072df04afae5ae28487e0b8208c52f13961dea34 ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:02:06,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:02:06,254 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:02:06,261 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:02:06,261 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:02:06,262 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:02:06,263 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:02:06,264 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:02:06,265 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:02:06,265 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:02:06,266 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:02:06,266 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:02:06,266 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:02:06,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:02:06,268 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:02:06,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:02:06,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:02:06,270 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:02:06,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:02:06,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:02:06,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:02:06,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:02:06,275 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:02:06,275 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:02:06,276 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:02:06,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:02:06,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:02:06,277 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:02:06,278 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:02:06,279 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:02:06,279 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:02:06,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:02:06,279 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:02:06,280 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:02:06,280 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:02:06,281 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:02:06,281 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 13:02:06,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:02:06,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:02:06,291 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:02:06,291 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:02:06,292 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:02:06,292 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:02:06,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:02:06,293 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:02:06,293 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:02:06,293 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:02:06,294 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:02:06,294 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:02:06,295 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:02:06,295 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:02:06,295 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:02:06,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:02:06,295 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:02:06,295 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:02:06,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:02:06,296 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:02:06,296 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:02:06,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:02:06,296 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:02:06,296 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_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/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 -> 072df04afae5ae28487e0b8208c52f13961dea34 [2018-11-10 13:02:06,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:02:06,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:02:06,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:02:06,330 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:02:06,330 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:02:06,331 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices_true-no-overflow_false-termination.c [2018-11-10 13:02:06,366 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/data/ae790febd/c74e4d5f677d4212817602831eaf9b3a/FLAG93a98709f [2018-11-10 13:02:06,749 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:02:06,749 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices_true-no-overflow_false-termination.c [2018-11-10 13:02:06,753 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/data/ae790febd/c74e4d5f677d4212817602831eaf9b3a/FLAG93a98709f [2018-11-10 13:02:06,761 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/data/ae790febd/c74e4d5f677d4212817602831eaf9b3a [2018-11-10 13:02:06,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:02:06,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:02:06,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:06,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:02:06,768 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:02:06,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236dc686 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06, skipping insertion in model container [2018-11-10 13:02:06,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:02:06,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:02:06,880 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:06,882 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:02:06,892 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:06,904 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:02:06,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06 WrapperNode [2018-11-10 13:02:06,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:06,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:02:06,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:02:06,905 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:02:06,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:02:06,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:02:06,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:02:06,934 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:02:06,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... [2018-11-10 13:02:06,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:02:06,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:02:06,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:02:06,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:02:06,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/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 [2018-11-10 13:02:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:02:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:02:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:02:07,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:02:07,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:02:07,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:02:07,158 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:02:07,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:07 BoogieIcfgContainer [2018-11-10 13:02:07,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:02:07,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:02:07,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:02:07,162 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:02:07,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:02:06" (1/3) ... [2018-11-10 13:02:07,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50784205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:07, skipping insertion in model container [2018-11-10 13:02:07,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:06" (2/3) ... [2018-11-10 13:02:07,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50784205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:07, skipping insertion in model container [2018-11-10 13:02:07,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:07" (3/3) ... [2018-11-10 13:02:07,165 INFO L112 eAbstractionObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices_true-no-overflow_false-termination.c [2018-11-10 13:02:07,173 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:02:07,183 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 13:02:07,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 13:02:07,223 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:02:07,223 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:02:07,223 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:02:07,223 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:02:07,223 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:02:07,223 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:02:07,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:02:07,223 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:02:07,237 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 13:02:07,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:02:07,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:07,242 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:07,244 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:02:07,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:07,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1869216211, now seen corresponding path program 1 times [2018-11-10 13:02:07,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:07,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:07,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:07,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:07,288 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:07,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:07,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:07,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:02:07,388 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:02:07,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:02:07,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:02:07,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:02:07,405 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-10 13:02:07,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:07,454 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-11-10 13:02:07,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:02:07,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 13:02:07,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:07,461 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:02:07,461 INFO L226 Difference]: Without dead ends: 12 [2018-11-10 13:02:07,463 INFO L605 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 [2018-11-10 13:02:07,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-10 13:02:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-10 13:02:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 13:02:07,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-10 13:02:07,484 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-10 13:02:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:07,485 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-10 13:02:07,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:02:07,485 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-10 13:02:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 13:02:07,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:07,485 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:07,486 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:02:07,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:07,486 INFO L82 PathProgramCache]: Analyzing trace with hash -2111127643, now seen corresponding path program 1 times [2018-11-10 13:02:07,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:07,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:07,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:07,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:07,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:07,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:07,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:02:07,528 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:02:07,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:02:07,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:02:07,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:02:07,530 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2018-11-10 13:02:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:07,552 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-10 13:02:07,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:02:07,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-10 13:02:07,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:07,554 INFO L225 Difference]: With dead ends: 12 [2018-11-10 13:02:07,554 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:02:07,554 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:02:07,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:02:07,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:02:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:02:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:02:07,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-10 13:02:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:07,555 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:02:07,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:02:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:02:07,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:02:07,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:02:07,567 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:02:07,568 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:02:07,568 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:07,568 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:07,568 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:02:07,568 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:02:07,568 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:02:07,568 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 18) the Hoare annotation is: true [2018-11-10 13:02:07,568 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 18) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 18) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 16) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2018-11-10 13:02:07,569 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 16) the Hoare annotation is: (<= (select (select |#memory_int| |main_~#a~0.base|) (+ |main_~#a~0.offset| 8)) 2147483647) [2018-11-10 13:02:07,569 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 16) no Hoare annotation was computed. [2018-11-10 13:02:07,574 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:02:07,577 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:02:07,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:02:07 BoogieIcfgContainer [2018-11-10 13:02:07,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:02:07,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:02:07,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:02:07,579 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:02:07,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:07" (3/4) ... [2018-11-10 13:02:07,583 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:02:07,587 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:02:07,587 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:02:07,590 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-11-10 13:02:07,590 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 13:02:07,590 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:02:07,591 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:02:07,622 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d07bb9da-af96-4a1e-aebd-30e594bb3ff5/bin-2019/utaipan/witness.graphml [2018-11-10 13:02:07,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:02:07,623 INFO L168 Benchmark]: Toolchain (without parser) took 859.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -133.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:07,623 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:07,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.01 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:07,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.61 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:07,624 INFO L168 Benchmark]: Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 939.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:07,624 INFO L168 Benchmark]: RCFGBuilder took 208.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:07,625 INFO L168 Benchmark]: TraceAbstraction took 419.37 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:07,625 INFO L168 Benchmark]: Witness Printer took 43.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:07,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.01 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 947.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.61 ms. Allocated memory is still 1.0 GB. Free memory is still 947.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.83 ms. Allocated memory is still 1.0 GB. Free memory was 947.2 MB in the beginning and 939.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 208.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -196.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 419.37 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 43.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 13]: Loop Invariant [2018-11-10 13:02:07,630 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 13:02:07,631 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: unknown-#memory_int-unknown[a][a + 8] <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 6 SDslu, 33 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 13 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 535 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...