./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:21:22,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:21:22,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:21:22,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:21:22,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:21:22,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:21:22,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:21:22,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:21:22,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:21:22,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:21:22,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:21:22,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:21:22,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:21:22,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:21:22,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:21:22,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:21:22,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:21:22,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:21:22,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:21:22,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:21:22,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:21:22,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:21:22,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:21:22,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:21:23,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:21:23,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:21:23,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:21:23,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:21:23,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:21:23,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:21:23,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:21:23,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:21:23,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:21:23,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:21:23,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:21:23,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:21:23,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:21:23,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:21:23,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:21:23,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:21:23,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:21:23,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-15 21:21:23,063 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:21:23,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:21:23,065 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:21:23,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:21:23,065 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:21:23,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:21:23,066 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:21:23,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:21:23,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:21:23,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:21:23,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:21:23,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:21:23,068 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-15 21:21:23,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:21:23,068 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:21:23,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:21:23,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:21:23,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:21:23,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:21:23,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:21:23,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:21:23,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:21:23,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:21:23,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:21:23,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:21:23,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:21:23,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:21:23,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer 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 -> Automizer 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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2019-11-15 21:21:23,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:21:23,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:21:23,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:21:23,130 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:21:23,130 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:21:23,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-15 21:21:23,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/data/419247501/cfcb8ccbd46b486b8018f8cd4b81ef82/FLAG48b5893c8 [2019-11-15 21:21:23,672 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:21:23,673 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-15 21:21:23,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/data/419247501/cfcb8ccbd46b486b8018f8cd4b81ef82/FLAG48b5893c8 [2019-11-15 21:21:24,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/data/419247501/cfcb8ccbd46b486b8018f8cd4b81ef82 [2019-11-15 21:21:24,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:21:24,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:21:24,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:21:24,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:21:24,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:21:24,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7211fb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24, skipping insertion in model container [2019-11-15 21:21:24,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,049 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:21:24,069 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:21:24,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:21:24,318 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:21:24,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:21:24,446 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:21:24,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24 WrapperNode [2019-11-15 21:21:24,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:21:24,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:21:24,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:21:24,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:21:24,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:21:24,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:21:24,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:21:24,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:21:24,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... [2019-11-15 21:21:24,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:21:24,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:21:24,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:21:24,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:21:24,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/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 [2019-11-15 21:21:24,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:21:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:21:24,843 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:21:24,844 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 21:21:24,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:21:24 BoogieIcfgContainer [2019-11-15 21:21:24,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:21:24,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:21:24,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:21:24,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:21:24,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:21:24" (1/3) ... [2019-11-15 21:21:24,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cbbc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:21:24, skipping insertion in model container [2019-11-15 21:21:24,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:21:24" (2/3) ... [2019-11-15 21:21:24,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cbbc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:21:24, skipping insertion in model container [2019-11-15 21:21:24,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:21:24" (3/3) ... [2019-11-15 21:21:24,867 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b.c [2019-11-15 21:21:24,886 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:21:24,893 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 21:21:24,906 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 21:21:24,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:21:24,940 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:21:24,940 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:21:24,940 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:21:24,940 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:21:24,940 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:21:24,940 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:21:24,941 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:21:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-15 21:21:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-15 21:21:24,960 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:24,961 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-15 21:21:24,963 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:24,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:24,968 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-15 21:21:24,978 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:24,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496356469] [2019-11-15 21:21:24,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:24,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:24,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496356469] [2019-11-15 21:21:25,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,136 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:21:25,136 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681992666] [2019-11-15 21:21:25,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,140 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,155 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-11-15 21:21:25,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,194 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-11-15 21:21:25,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-15 21:21:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,207 INFO L225 Difference]: With dead ends: 24 [2019-11-15 21:21:25,208 INFO L226 Difference]: Without dead ends: 15 [2019-11-15 21:21:25,211 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-15 21:21:25,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-15 21:21:25,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-15 21:21:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-11-15 21:21:25,247 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2019-11-15 21:21:25,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,248 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-11-15 21:21:25,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,248 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-11-15 21:21:25,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:21:25,249 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:25,249 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:21:25,249 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:25,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:25,250 INFO L82 PathProgramCache]: Analyzing trace with hash 29869546, now seen corresponding path program 1 times [2019-11-15 21:21:25,250 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:25,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505128327] [2019-11-15 21:21:25,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,251 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505128327] [2019-11-15 21:21:25,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:21:25,284 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301864977] [2019-11-15 21:21:25,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,286 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,287 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-11-15 21:21:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,303 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-15 21:21:25,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:21:25,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,305 INFO L225 Difference]: With dead ends: 15 [2019-11-15 21:21:25,305 INFO L226 Difference]: Without dead ends: 14 [2019-11-15 21:21:25,306 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-15 21:21:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-15 21:21:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-15 21:21:25,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-15 21:21:25,309 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2019-11-15 21:21:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,310 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-15 21:21:25,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-15 21:21:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:21:25,311 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:25,311 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:21:25,311 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:25,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:25,312 INFO L82 PathProgramCache]: Analyzing trace with hash 29869738, now seen corresponding path program 1 times [2019-11-15 21:21:25,312 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:25,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775944979] [2019-11-15 21:21:25,312 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,313 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,313 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775944979] [2019-11-15 21:21:25,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:21:25,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119362367] [2019-11-15 21:21:25,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,342 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,343 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-11-15 21:21:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,391 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-15 21:21:25,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:21:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,393 INFO L225 Difference]: With dead ends: 14 [2019-11-15 21:21:25,393 INFO L226 Difference]: Without dead ends: 13 [2019-11-15 21:21:25,393 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-15 21:21:25,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-15 21:21:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-15 21:21:25,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2019-11-15 21:21:25,397 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2019-11-15 21:21:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,397 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-15 21:21:25,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-15 21:21:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-15 21:21:25,398 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:25,398 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-15 21:21:25,398 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:25,399 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-15 21:21:25,399 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:25,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926394950] [2019-11-15 21:21:25,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,400 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,451 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926394950] [2019-11-15 21:21:25,451 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:21:25,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102550985] [2019-11-15 21:21:25,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,453 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2019-11-15 21:21:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,477 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-15 21:21:25,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-15 21:21:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,478 INFO L225 Difference]: With dead ends: 14 [2019-11-15 21:21:25,478 INFO L226 Difference]: Without dead ends: 13 [2019-11-15 21:21:25,479 INFO L600 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 [2019-11-15 21:21:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-11-15 21:21:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-15 21:21:25,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-15 21:21:25,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-15 21:21:25,482 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2019-11-15 21:21:25,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,482 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-15 21:21:25,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,483 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-15 21:21:25,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 21:21:25,483 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:25,483 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:21:25,484 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:25,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:25,484 INFO L82 PathProgramCache]: Analyzing trace with hash 925955982, now seen corresponding path program 1 times [2019-11-15 21:21:25,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:25,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235366947] [2019-11-15 21:21:25,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,485 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235366947] [2019-11-15 21:21:25,530 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:21:25,531 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877908639] [2019-11-15 21:21:25,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,532 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 3 states. [2019-11-15 21:21:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,551 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-11-15 21:21:25,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-15 21:21:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,552 INFO L225 Difference]: With dead ends: 13 [2019-11-15 21:21:25,553 INFO L226 Difference]: Without dead ends: 12 [2019-11-15 21:21:25,553 INFO L600 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 [2019-11-15 21:21:25,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-15 21:21:25,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-15 21:21:25,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-15 21:21:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-15 21:21:25,557 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2019-11-15 21:21:25,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,557 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-15 21:21:25,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-15 21:21:25,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-15 21:21:25,558 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:21:25,558 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-15 21:21:25,559 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-15 21:21:25,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:21:25,559 INFO L82 PathProgramCache]: Analyzing trace with hash 925961940, now seen corresponding path program 1 times [2019-11-15 21:21:25,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:21:25,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360200947] [2019-11-15 21:21:25,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:21:25,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:21:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:21:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:21:25,586 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360200947] [2019-11-15 21:21:25,587 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:21:25,587 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:21:25,587 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943997213] [2019-11-15 21:21:25,587 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:21:25,587 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:21:25,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:21:25,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:21:25,588 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-15 21:21:25,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:21:25,611 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2019-11-15 21:21:25,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:21:25,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-15 21:21:25,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:21:25,613 INFO L225 Difference]: With dead ends: 12 [2019-11-15 21:21:25,613 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:21:25,614 INFO L600 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 [2019-11-15 21:21:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:21:25,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:21:25,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:21:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:21:25,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-11-15 21:21:25,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:21:25,617 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:21:25,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:21:25,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:21:25,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:21:25,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:21:25,688 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:21:25,688 INFO L439 ceAbstractionStarter]: At program point L31(lines 15 32) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-15 21:21:25,689 INFO L443 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-11-15 21:21:25,689 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-11-15 21:21:25,689 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 29) no Hoare annotation was computed. [2019-11-15 21:21:25,689 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 29) no Hoare annotation was computed. [2019-11-15 21:21:25,689 INFO L439 ceAbstractionStarter]: At program point L23-2(lines 20 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~z~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-15 21:21:25,689 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-15 21:21:25,690 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-15 21:21:25,691 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 30) no Hoare annotation was computed. [2019-11-15 21:21:25,691 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-15 21:21:25,691 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2019-11-15 21:21:25,691 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2019-11-15 21:21:25,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:21:25 BoogieIcfgContainer [2019-11-15 21:21:25,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:21:25,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:21:25,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:21:25,725 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:21:25,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:21:24" (3/4) ... [2019-11-15 21:21:25,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:21:25,744 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:21:25,745 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:21:25,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f406cdb5-6699-480d-af71-9a6cbd3d10c6/bin/uautomizer/witness.graphml [2019-11-15 21:21:25,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:21:25,798 INFO L168 Benchmark]: Toolchain (without parser) took 1769.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,799 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:21:25,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.40 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. [2019-11-15 21:21:25,801 INFO L168 Benchmark]: Boogie Preprocessor took 21.73 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: 1.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,802 INFO L168 Benchmark]: RCFGBuilder took 339.01 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,802 INFO L168 Benchmark]: TraceAbstraction took 877.58 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,803 INFO L168 Benchmark]: Witness Printer took 71.52 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:21:25,807 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 418.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.40 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. * Boogie Preprocessor took 21.73 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: 1.3 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 339.01 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: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 877.58 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.52 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: 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && z <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 72 SDtfs, 56 SDslu, 0 SDs, 0 SdLazy, 30 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...