./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/gcd01-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/gcd01-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 32bit --witnessprinter.graph.data.programhash d6f4e1dd3818e9d3e8c54653af66359ead501b84 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:35:32,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:35:32,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:35:32,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:35:32,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:35:32,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:35:32,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:35:32,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:35:32,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:35:32,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:35:32,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:35:32,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:35:32,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:35:32,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:35:32,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:35:32,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:35:32,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:35:32,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:35:32,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:35:32,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:35:32,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:35:32,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:35:32,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:35:32,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:35:32,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:35:32,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:35:32,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:35:32,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:35:32,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:35:32,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:35:32,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:35:32,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:35:32,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:35:32,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:35:32,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:35:32,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:35:32,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:35:32,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:35:32,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:35:32,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:35:32,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:35:32,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-19 18:35:32,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:35:32,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:35:32,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:35:32,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:35:32,936 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:35:32,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:35:32,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:35:32,936 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:35:32,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:35:32,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:35:32,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:35:32,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:35:32,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:35:32,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:35:32,939 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:35:32,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:35:32,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:35:32,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:35:32,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:35:32,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:35:32,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:35:32,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:35:32,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:35:32,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:35:32,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:35:32,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:35:32,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:35:32,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:35:32,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:35:32,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:35:32,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:35:32,944 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6f4e1dd3818e9d3e8c54653af66359ead501b84 [2020-10-19 18:35:33,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:35:33,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:35:33,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:35:33,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:35:33,305 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:35:33,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/gcd01-1.c [2020-10-19 18:35:33,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cca2720/ef49fe7f57fc44fbb2ab261956cc5a28/FLAG8014eba47 [2020-10-19 18:35:33,822 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:35:33,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/gcd01-1.c [2020-10-19 18:35:33,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cca2720/ef49fe7f57fc44fbb2ab261956cc5a28/FLAG8014eba47 [2020-10-19 18:35:34,147 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04cca2720/ef49fe7f57fc44fbb2ab261956cc5a28 [2020-10-19 18:35:34,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:35:34,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:35:34,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:35:34,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:35:34,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:35:34,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa6ec75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34, skipping insertion in model container [2020-10-19 18:35:34,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:35:34,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:35:34,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:35:34,371 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:35:34,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:35:34,407 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:35:34,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34 WrapperNode [2020-10-19 18:35:34,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:35:34,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:35:34,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:35:34,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:35:34,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:35:34,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:35:34,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:35:34,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:35:34,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... [2020-10-19 18:35:34,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:35:34,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:35:34,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:35:34,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:35:34,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:35:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2020-10-19 18:35:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2020-10-19 18:35:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:35:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:35:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:35:34,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:35:34,886 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:35:34,887 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:35:34,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:35:34 BoogieIcfgContainer [2020-10-19 18:35:34,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:35:34,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:35:34,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:35:34,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:35:34,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:35:34" (1/3) ... [2020-10-19 18:35:34,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7daad5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:35:34, skipping insertion in model container [2020-10-19 18:35:34,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:35:34" (2/3) ... [2020-10-19 18:35:34,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7daad5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:35:34, skipping insertion in model container [2020-10-19 18:35:34,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:35:34" (3/3) ... [2020-10-19 18:35:34,903 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd01-1.c [2020-10-19 18:35:34,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:35:34,931 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-19 18:35:34,949 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-19 18:35:34,980 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:35:34,980 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:35:34,980 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:35:34,980 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:35:34,981 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:35:34,981 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:35:34,981 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:35:34,981 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:35:35,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-19 18:35:35,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:35:35,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:35:35,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:35:35,013 INFO L429 AbstractCegarLoop]: === Iteration 1 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:35:35,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:35:35,019 INFO L82 PathProgramCache]: Analyzing trace with hash 995104148, now seen corresponding path program 1 times [2020-10-19 18:35:35,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:35:35,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503731444] [2020-10-19 18:35:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:35:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:35:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:35:35,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503731444] [2020-10-19 18:35:35,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:35:35,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:35:35,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736967817] [2020-10-19 18:35:35,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:35:35,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:35:35,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:35:35,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:35:35,278 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 6 states. [2020-10-19 18:35:35,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:35:35,473 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2020-10-19 18:35:35,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:35:35,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 18:35:35,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:35:35,484 INFO L225 Difference]: With dead ends: 38 [2020-10-19 18:35:35,484 INFO L226 Difference]: Without dead ends: 17 [2020-10-19 18:35:35,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:35:35,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-19 18:35:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-10-19 18:35:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-19 18:35:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-10-19 18:35:35,525 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2020-10-19 18:35:35,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:35:35,525 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-10-19 18:35:35,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:35:35,526 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-10-19 18:35:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:35:35,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:35:35,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:35:35,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:35:35,527 INFO L429 AbstractCegarLoop]: === Iteration 2 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-19 18:35:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:35:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash 995103924, now seen corresponding path program 1 times [2020-10-19 18:35:35,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:35:35,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609742079] [2020-10-19 18:35:35,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:35:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:35:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:35:35,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609742079] [2020-10-19 18:35:35,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:35:35,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:35:35,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308623872] [2020-10-19 18:35:35,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:35:35,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:35:35,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:35:35,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:35:35,616 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-10-19 18:35:35,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:35:35,683 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-10-19 18:35:35,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:35:35,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-19 18:35:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:35:35,685 INFO L225 Difference]: With dead ends: 17 [2020-10-19 18:35:35,685 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 18:35:35,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:35:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 18:35:35,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 18:35:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 18:35:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 18:35:35,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-19 18:35:35,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:35:35,689 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:35:35,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:35:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:35:35,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:35:35,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:35:35,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 18:35:35,857 INFO L274 CegarLoopResult]: For program point gcdFINAL(lines 17 28) no Hoare annotation was computed. [2020-10-19 18:35:35,857 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 18:35:35,857 INFO L274 CegarLoopResult]: For program point gcdEXIT(lines 17 28) no Hoare annotation was computed. [2020-10-19 18:35:35,858 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-10-19 18:35:35,858 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-19 18:35:35,858 INFO L274 CegarLoopResult]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-19 18:35:35,859 INFO L270 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (or (not (<= |gcd_#in~y1| 2147483647)) (not (<= |gcd_#in~y2| 2147483647)) (and (<= gcd_~y1 2147483647) (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647))) [2020-10-19 18:35:35,859 INFO L274 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed. [2020-10-19 18:35:35,859 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-19 18:35:35,861 INFO L274 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-10-19 18:35:35,861 INFO L277 CegarLoopResult]: At program point gcdENTRY(lines 17 28) the Hoare annotation is: true [2020-10-19 18:35:35,862 INFO L270 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (or (not (<= |gcd_#in~y1| 2147483647)) (not (<= |gcd_#in~y2| 2147483647)) (and (<= gcd_~y1 2147483647) (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647))) [2020-10-19 18:35:35,862 INFO L274 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-10-19 18:35:35,863 INFO L274 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-19 18:35:35,863 INFO L274 CegarLoopResult]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-19 18:35:35,863 INFO L274 CegarLoopResult]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-10-19 18:35:35,863 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-10-19 18:35:35,864 INFO L274 CegarLoopResult]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-19 18:35:35,864 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:35:35,865 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-10-19 18:35:35,866 INFO L274 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-10-19 18:35:35,866 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 18:35:35,866 INFO L274 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-10-19 18:35:35,866 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 18:35:35,867 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:35:35,867 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:35:35,867 INFO L277 CegarLoopResult]: At program point L43(lines 30 45) the Hoare annotation is: true [2020-10-19 18:35:35,868 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-19 18:35:35,868 INFO L270 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= ULTIMATE.start_main_~m~0 2147483647) (<= ULTIMATE.start_main_~n~0 2147483647)) [2020-10-19 18:35:35,868 INFO L274 CegarLoopResult]: For program point L39-1(line 39) no Hoare annotation was computed. [2020-10-19 18:35:35,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:35:35 BoogieIcfgContainer [2020-10-19 18:35:35,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:35:35,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:35:35,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:35:35,893 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:35:35,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:35:34" (3/4) ... [2020-10-19 18:35:35,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:35:35,927 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2020-10-19 18:35:35,934 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-19 18:35:35,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-19 18:35:35,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:35:35,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:35:35,993 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:35:35,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:35:35,996 INFO L168 Benchmark]: Toolchain (without parser) took 1842.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 958.6 MB in the beginning and 1.0 GB in the end (delta: -70.7 MB). Peak memory consumption was 56.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:35,996 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:35:35,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.01 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:35,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 942.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:35,999 INFO L168 Benchmark]: Boogie Preprocessor took 79.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:35,999 INFO L168 Benchmark]: RCFGBuilder took 359.15 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:36,000 INFO L168 Benchmark]: TraceAbstraction took 1000.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:36,001 INFO L168 Benchmark]: Witness Printer took 101.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:35:36,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.01 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 942.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 359.15 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1000.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 11.5 GB. * Witness Printer took 101.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 70 SDslu, 52 SDs, 0 SdLazy, 96 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 61 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...