./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a156731963582ce9a466285688eba3a68b58029 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:59:10,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:59:10,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:59:10,692 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:59:10,693 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:59:10,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:59:10,695 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:59:10,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:59:10,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:59:10,700 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:59:10,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:59:10,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:59:10,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:59:10,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:59:10,707 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:59:10,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:59:10,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:59:10,712 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:59:10,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:59:10,718 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:59:10,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:59:10,726 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:59:10,733 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:59:10,733 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:59:10,733 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:59:10,734 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:59:10,746 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:59:10,747 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:59:10,747 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:59:10,748 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:59:10,749 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:59:10,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:59:10,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:59:10,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:59:10,751 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:59:10,752 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:59:10,752 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:59:10,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:59:10,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:59:10,769 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:59:10,769 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:59:10,770 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:59:10,770 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:59:10,770 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:59:10,770 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:59:10,770 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:59:10,771 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:59:10,772 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:59:10,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:59:10,772 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:59:10,772 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:59:10,772 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:59:10,773 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:59:10,773 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:59:10,773 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:59:10,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:59:10,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:59:10,774 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:59:10,775 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:59:10,775 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:59:10,775 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:59:10,776 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:59:10,776 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:59:10,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:59:10,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:59:10,776 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 ! call(__VERIFIER_error())) ) 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 -> 4a156731963582ce9a466285688eba3a68b58029 [2018-12-31 05:59:10,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:59:10,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:59:10,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:59:10,847 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:59:10,847 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:59:10,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-12-31 05:59:10,916 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a78115ac/f18a85cf2cae4a66bc472ecd777e3d0c/FLAG86a10b6c3 [2018-12-31 05:59:11,334 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:59:11,335 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2018-12-31 05:59:11,341 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a78115ac/f18a85cf2cae4a66bc472ecd777e3d0c/FLAG86a10b6c3 [2018-12-31 05:59:11,703 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a78115ac/f18a85cf2cae4a66bc472ecd777e3d0c [2018-12-31 05:59:11,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:59:11,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:59:11,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:59:11,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:59:11,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:59:11,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:59:11" (1/1) ... [2018-12-31 05:59:11,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ab9922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:11, skipping insertion in model container [2018-12-31 05:59:11,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:59:11" (1/1) ... [2018-12-31 05:59:11,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:59:11,754 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:59:11,989 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:59:11,997 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:59:12,020 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:59:12,042 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:59:12,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12 WrapperNode [2018-12-31 05:59:12,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:59:12,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:59:12,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:59:12,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:59:12,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:59:12,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:59:12,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:59:12,087 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:59:12,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (1/1) ... [2018-12-31 05:59:12,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:59:12,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:59:12,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:59:12,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:59:12,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (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 [2018-12-31 05:59:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:59:12,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:59:12,454 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:59:12,454 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 05:59:12,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:59:12 BoogieIcfgContainer [2018-12-31 05:59:12,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:59:12,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:59:12,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:59:12,459 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:59:12,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:59:11" (1/3) ... [2018-12-31 05:59:12,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4da5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:59:12, skipping insertion in model container [2018-12-31 05:59:12,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:59:12" (2/3) ... [2018-12-31 05:59:12,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f4da5fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:59:12, skipping insertion in model container [2018-12-31 05:59:12,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:59:12" (3/3) ... [2018-12-31 05:59:12,463 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2018-12-31 05:59:12,473 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:59:12,482 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 05:59:12,500 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 05:59:12,531 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:59:12,532 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:59:12,532 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:59:12,532 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:59:12,532 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:59:12,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:59:12,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:59:12,533 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:59:12,533 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:59:12,548 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 05:59:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 05:59:12,554 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:59:12,556 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 05:59:12,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:59:12,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:59:12,565 INFO L82 PathProgramCache]: Analyzing trace with hash 922384074, now seen corresponding path program 1 times [2018-12-31 05:59:12,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:59:12,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:59:12,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:12,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:59:12,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:59:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:59:12,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:59:12,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 05:59:12,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 05:59:12,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 05:59:12,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 05:59:12,710 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-12-31 05:59:12,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:59:12,727 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2018-12-31 05:59:12,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 05:59:12,729 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-12-31 05:59:12,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:59:12,741 INFO L225 Difference]: With dead ends: 18 [2018-12-31 05:59:12,741 INFO L226 Difference]: Without dead ends: 8 [2018-12-31 05:59:12,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 05:59:12,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-31 05:59:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-31 05:59:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-31 05:59:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-12-31 05:59:12,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2018-12-31 05:59:12,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:59:12,779 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-31 05:59:12,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 05:59:12,779 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-31 05:59:12,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 05:59:12,780 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:59:12,780 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 05:59:12,780 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:59:12,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:59:12,781 INFO L82 PathProgramCache]: Analyzing trace with hash 922086164, now seen corresponding path program 1 times [2018-12-31 05:59:12,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:59:12,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:59:12,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:12,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:59:12,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:59:13,089 WARN L181 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2018-12-31 05:59:13,339 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2018-12-31 05:59:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:59:13,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:59:13,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 05:59:13,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 05:59:13,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 05:59:13,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-31 05:59:13,372 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 6 states. [2018-12-31 05:59:13,612 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-31 05:59:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:59:17,704 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-31 05:59:17,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 05:59:17,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-12-31 05:59:17,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:59:17,707 INFO L225 Difference]: With dead ends: 14 [2018-12-31 05:59:17,707 INFO L226 Difference]: Without dead ends: 10 [2018-12-31 05:59:17,708 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-31 05:59:17,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-31 05:59:17,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-12-31 05:59:17,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-31 05:59:17,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-12-31 05:59:17,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2018-12-31 05:59:17,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:59:17,713 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-12-31 05:59:17,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 05:59:17,713 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-12-31 05:59:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 05:59:17,713 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:59:17,714 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 05:59:17,714 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:59:17,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:59:17,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1411883511, now seen corresponding path program 1 times [2018-12-31 05:59:17,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:59:17,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:59:17,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:17,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:59:17,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:59:17,721 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-31 05:59:17,722 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-31 05:59:17,722 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-31 05:59:17,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:59:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:59:17,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 05:59:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:59:17,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:59:17,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 05:59:17,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 05:59:17,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 05:59:17,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:59:17,818 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2018-12-31 05:59:17,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:59:17,854 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2018-12-31 05:59:17,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 05:59:17,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-12-31 05:59:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:59:17,856 INFO L225 Difference]: With dead ends: 11 [2018-12-31 05:59:17,856 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 05:59:17,857 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:59:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 05:59:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 05:59:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 05:59:17,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 05:59:17,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-12-31 05:59:17,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:59:17,858 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 05:59:17,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 05:59:17,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 05:59:17,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 05:59:17,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 05:59:17,944 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 05:59:17,945 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-12-31 05:59:17,945 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-31 05:59:17,946 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 1) (<= (+ ULTIMATE.start_main_~x~0 (* 4294967296 (div ULTIMATE.start_main_~y~0 4294967296))) (+ (* 4294967296 (div ULTIMATE.start_main_~x~0 4294967296)) ULTIMATE.start_main_~y~0))) [2018-12-31 05:59:17,946 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-12-31 05:59:17,946 INFO L451 ceAbstractionStarter]: At program point L5-2(lines 1 22) the Hoare annotation is: true [2018-12-31 05:59:17,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 05:59:17,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 05:59:17,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-12-31 05:59:17,947 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 20) no Hoare annotation was computed. [2018-12-31 05:59:17,947 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-12-31 05:59:17,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:59:17 BoogieIcfgContainer [2018-12-31 05:59:17,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:59:17,960 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:59:17,960 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:59:17,961 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:59:17,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:59:12" (3/4) ... [2018-12-31 05:59:17,964 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 05:59:17,975 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 05:59:17,975 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 05:59:18,024 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:59:18,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:59:18,025 INFO L168 Benchmark]: Toolchain (without parser) took 6317.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -108.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2018-12-31 05:59:18,026 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:59:18,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:59:18,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:59:18,029 INFO L168 Benchmark]: Boogie Preprocessor took 20.68 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:59:18,030 INFO L168 Benchmark]: RCFGBuilder took 347.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 05:59:18,030 INFO L168 Benchmark]: TraceAbstraction took 5504.04 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2018-12-31 05:59:18,031 INFO L168 Benchmark]: Witness Printer took 63.98 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 05:59:18,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 40.58 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.68 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 347.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5504.04 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.98 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == 1 && x + 4294967296 * (y / 4294967296) <= 4294967296 * (x / 4294967296) + y - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...