./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/bitvector/jain_1_true-unreach-call_true-no-overflow_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/bitvector/jain_1_true-unreach-call_true-no-overflow_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 1be182b448ecd24dcaa33a463c0822c290f39b3b ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-11 21:10:58,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 21:10:58,906 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 21:10:58,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 21:10:58,923 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 21:10:58,924 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 21:10:58,925 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 21:10:58,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 21:10:58,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 21:10:58,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 21:10:58,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-11 21:10:58,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-11 21:10:58,931 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-11 21:10:58,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-11 21:10:58,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-11 21:10:58,933 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-11 21:10:58,934 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-11 21:10:58,936 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-11 21:10:58,938 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-11 21:10:58,939 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-11 21:10:58,940 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-11 21:10:58,941 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-11 21:10:58,944 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-11 21:10:58,944 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-11 21:10:58,944 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-11 21:10:58,945 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-11 21:10:58,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-11 21:10:58,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-11 21:10:58,948 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-11 21:10:58,949 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-11 21:10:58,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-11 21:10:58,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-11 21:10:58,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-11 21:10:58,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-11 21:10:58,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-11 21:10:58,952 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-11 21:10:58,952 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-11 21:10:58,970 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 21:10:58,973 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 21:10:58,974 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 21:10:58,975 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 21:10:58,975 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 21:10:58,975 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 21:10:58,975 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 21:10:58,975 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-11 21:10:58,976 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 21:10:58,976 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-11 21:10:58,977 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 21:10:58,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 21:10:58,979 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 21:10:58,979 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-11 21:10:58,979 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 21:10:58,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-11 21:10:58,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 21:10:58,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 21:10:58,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 21:10:58,980 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-11 21:10:58,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 21:10:58,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-11 21:10:58,981 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 -> 1be182b448ecd24dcaa33a463c0822c290f39b3b [2019-01-11 21:10:59,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 21:10:59,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 21:10:59,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 21:10:59,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-11 21:10:59,060 INFO L276 PluginConnector]: CDTParser initialized [2019-01-11 21:10:59,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/jain_1_true-unreach-call_true-no-overflow_false-termination.i [2019-01-11 21:10:59,118 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb0d15af/f6a569acf6ac4a7db0d5d4da2b40770a/FLAG2f1ee7198 [2019-01-11 21:10:59,553 INFO L307 CDTParser]: Found 1 translation units. [2019-01-11 21:10:59,554 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/jain_1_true-unreach-call_true-no-overflow_false-termination.i [2019-01-11 21:10:59,560 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb0d15af/f6a569acf6ac4a7db0d5d4da2b40770a/FLAG2f1ee7198 [2019-01-11 21:10:59,902 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb0d15af/f6a569acf6ac4a7db0d5d4da2b40770a [2019-01-11 21:10:59,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 21:10:59,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-11 21:10:59,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-11 21:10:59,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-11 21:10:59,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-11 21:10:59,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:10:59" (1/1) ... [2019-01-11 21:10:59,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@872c042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:10:59, skipping insertion in model container [2019-01-11 21:10:59,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 09:10:59" (1/1) ... [2019-01-11 21:10:59,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-11 21:10:59,940 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-11 21:11:00,105 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:11:00,110 INFO L191 MainTranslator]: Completed pre-run [2019-01-11 21:11:00,129 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-11 21:11:00,145 INFO L195 MainTranslator]: Completed translation [2019-01-11 21:11:00,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00 WrapperNode [2019-01-11 21:11:00,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-11 21:11:00,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 21:11:00,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 21:11:00,147 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 21:11:00,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 21:11:00,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 21:11:00,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 21:11:00,187 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 21:11:00,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (1/1) ... [2019-01-11 21:11:00,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 21:11:00,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 21:11:00,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 21:11:00,210 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 21:11:00,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (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 [2019-01-11 21:11:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-11 21:11:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-11 21:11:00,625 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-11 21:11:00,625 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-11 21:11:00,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:11:00 BoogieIcfgContainer [2019-01-11 21:11:00,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 21:11:00,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-11 21:11:00,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-11 21:11:00,634 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-11 21:11:00,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 09:10:59" (1/3) ... [2019-01-11 21:11:00,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f39740a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:11:00, skipping insertion in model container [2019-01-11 21:11:00,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 09:11:00" (2/3) ... [2019-01-11 21:11:00,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f39740a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 09:11:00, skipping insertion in model container [2019-01-11 21:11:00,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:11:00" (3/3) ... [2019-01-11 21:11:00,643 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_1_true-unreach-call_true-no-overflow_false-termination.i [2019-01-11 21:11:00,653 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-11 21:11:00,664 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-11 21:11:00,680 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-11 21:11:00,710 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-11 21:11:00,710 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-11 21:11:00,710 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-11 21:11:00,711 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-11 21:11:00,711 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-11 21:11:00,711 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-11 21:11:00,711 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-11 21:11:00,711 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-11 21:11:00,711 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-11 21:11:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-01-11 21:11:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-11 21:11:00,730 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:11:00,731 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-11 21:11:00,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:11:00,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:11:00,739 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-01-11 21:11:00,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:11:00,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:11:00,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:11:00,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:11:00,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:11:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:11:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:11:00,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 21:11:00,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-11 21:11:00,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-11 21:11:01,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-11 21:11:01,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-11 21:11:01,019 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-01-11 21:11:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:11:01,099 INFO L93 Difference]: Finished difference Result 16 states and 26 transitions. [2019-01-11 21:11:01,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-11 21:11:01,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-11 21:11:01,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:11:01,111 INFO L225 Difference]: With dead ends: 16 [2019-01-11 21:11:01,112 INFO L226 Difference]: Without dead ends: 8 [2019-01-11 21:11:01,115 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-11 21:11:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-11 21:11:01,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-01-11 21:11:01,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-11 21:11:01,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-01-11 21:11:01,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-01-11 21:11:01,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:11:01,152 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-01-11 21:11:01,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-11 21:11:01,152 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-11 21:11:01,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-11 21:11:01,154 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 21:11:01,154 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-01-11 21:11:01,154 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-11 21:11:01,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 21:11:01,154 INFO L82 PathProgramCache]: Analyzing trace with hash 925914308, now seen corresponding path program 1 times [2019-01-11 21:11:01,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-11 21:11:01,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-11 21:11:01,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:11:01,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:11:01,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 21:11:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:11:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 21:11:01,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 21:11:01,326 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-11 21:11:01,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 21:11:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 21:11:01,370 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 21:11:07,887 WARN L838 $PredicateComparison]: unable to prove that (or (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (and (exists ((|v_ULTIMATE.start_main_#t~nondet0_5| Int) (ULTIMATE.start_main_~y~0 Int)) (and (= 0 (mod ULTIMATE.start_main_~y~0 4294967296)) (<= (+ ULTIMATE.start_main_~y~0 1) (+ (* 2 |v_ULTIMATE.start_main_#t~nondet0_5|) (* 2 (div (+ (* (- 2) |v_ULTIMATE.start_main_#t~nondet0_5|) ULTIMATE.start_main_~y~0 1) 2)))))) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond))) is different from false [2019-01-11 21:11:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2019-01-11 21:11:07,915 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-11 21:11:07,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-01-11 21:11:07,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-11 21:11:07,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-11 21:11:07,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=27, Unknown=1, NotChecked=10, Total=56 [2019-01-11 21:11:07,917 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2019-01-11 21:11:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 21:11:09,339 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-11 21:11:09,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-11 21:11:09,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-01-11 21:11:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 21:11:09,340 INFO L225 Difference]: With dead ends: 7 [2019-01-11 21:11:09,340 INFO L226 Difference]: Without dead ends: 0 [2019-01-11 21:11:09,342 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=18, Invalid=27, Unknown=1, NotChecked=10, Total=56 [2019-01-11 21:11:09,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-11 21:11:09,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-11 21:11:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-11 21:11:09,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-11 21:11:09,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-11 21:11:09,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 21:11:09,343 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-11 21:11:09,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-11 21:11:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-11 21:11:09,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-11 21:11:09,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-11 21:11:09,524 WARN L181 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-11 21:11:09,528 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-11 21:11:09,528 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-01-11 21:11:09,528 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-01-11 21:11:09,528 INFO L444 ceAbstractionStarter]: At program point L5-2(lines 4 23) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (exists ((|v_ULTIMATE.start_main_#t~nondet0_4| Int)) (let ((.cse0 (+ (* 2 |v_ULTIMATE.start_main_#t~nondet0_4|) 1))) (and (<= ULTIMATE.start_main_~y~0 .cse0) (<= .cse0 ULTIMATE.start_main_~y~0))))) (and (<= ULTIMATE.start_main_~y~0 1) (<= 1 ULTIMATE.start_main_~y~0))) [2019-01-11 21:11:09,529 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-11 21:11:09,529 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-11 21:11:09,529 INFO L444 ceAbstractionStarter]: At program point L24(lines 10 25) the Hoare annotation is: false [2019-01-11 21:11:09,529 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 16 23) no Hoare annotation was computed. [2019-01-11 21:11:09,529 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-01-11 21:11:09,535 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,536 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 09:11:09 BoogieIcfgContainer [2019-01-11 21:11:09,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-11 21:11:09,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-11 21:11:09,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-11 21:11:09,544 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-11 21:11:09,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 09:11:00" (3/4) ... [2019-01-11 21:11:09,548 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-11 21:11:09,560 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-11 21:11:09,561 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-11 21:11:09,586 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1 == cond && (\exists v_ULTIMATE.start_main_#t~nondet0_4 : int :: y <= 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 && 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 <= y)) || (y <= 1 && 1 <= y) [2019-01-11 21:11:09,601 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-11 21:11:09,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-11 21:11:09,603 INFO L168 Benchmark]: Toolchain (without parser) took 9697.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -115.4 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-01-11 21:11:09,605 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-01-11 21:11:09,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-11 21:11:09,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.62 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:11:09,607 INFO L168 Benchmark]: Boogie Preprocessor took 23.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-11 21:11:09,608 INFO L168 Benchmark]: RCFGBuilder took 418.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-11 21:11:09,609 INFO L168 Benchmark]: TraceAbstraction took 8913.88 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2019-01-11 21:11:09,610 INFO L168 Benchmark]: Witness Printer took 57.76 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. [2019-01-11 21:11:09,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 237.95 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 39.62 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 418.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8913.88 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.76 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] * 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: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 4]: Loop Invariant [2019-01-11 21:11:09,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,628 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] [2019-01-11 21:11:09,629 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet0_4,QUANTIFIED] Derived loop invariant: (1 == cond && (\exists v_ULTIMATE.start_main_#t~nondet0_4 : int :: y <= 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 && 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 <= y)) || (y <= 1 && 1 <= y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 8.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 2 QuantifiedInterpolants, 603 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...