./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-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/loops/terminator_02_true-unreach-call_true-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 77773b6d98c13684866533d0b64942a0b1025f7d ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 10:52:03,308 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 10:52:03,310 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 10:52:03,330 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 10:52:03,330 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 10:52:03,331 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 10:52:03,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 10:52:03,334 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 10:52:03,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 10:52:03,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 10:52:03,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 10:52:03,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 10:52:03,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 10:52:03,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 10:52:03,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 10:52:03,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 10:52:03,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 10:52:03,345 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 10:52:03,347 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 10:52:03,349 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 10:52:03,350 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 10:52:03,351 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 10:52:03,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 10:52:03,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 10:52:03,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 10:52:03,355 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 10:52:03,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 10:52:03,357 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 10:52:03,358 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 10:52:03,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 10:52:03,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 10:52:03,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 10:52:03,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 10:52:03,361 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 10:52:03,362 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 10:52:03,362 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 10:52:03,363 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 10:52:03,390 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 10:52:03,390 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 10:52:03,392 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 10:52:03,392 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 10:52:03,392 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 10:52:03,393 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 10:52:03,393 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 10:52:03,393 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 10:52:03,393 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 10:52:03,393 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 10:52:03,394 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 10:52:03,394 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 10:52:03,394 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 10:52:03,394 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 10:52:03,394 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 10:52:03,395 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 10:52:03,395 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 10:52:03,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 10:52:03,395 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 10:52:03,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 10:52:03,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 10:52:03,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 10:52:03,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 10:52:03,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 10:52:03,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 10:52:03,400 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 10:52:03,400 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 10:52:03,400 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 10:52:03,401 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 -> 77773b6d98c13684866533d0b64942a0b1025f7d [2019-01-12 10:52:03,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 10:52:03,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 10:52:03,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 10:52:03,482 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 10:52:03,482 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 10:52:03,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2019-01-12 10:52:03,546 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036eb1147/55105e5facf84be7a2e7a97b29f1c4e0/FLAGd174ea97e [2019-01-12 10:52:04,007 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 10:52:04,008 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2019-01-12 10:52:04,013 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036eb1147/55105e5facf84be7a2e7a97b29f1c4e0/FLAGd174ea97e [2019-01-12 10:52:04,391 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/036eb1147/55105e5facf84be7a2e7a97b29f1c4e0 [2019-01-12 10:52:04,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 10:52:04,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 10:52:04,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 10:52:04,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 10:52:04,402 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 10:52:04,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04, skipping insertion in model container [2019-01-12 10:52:04,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 10:52:04,435 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 10:52:04,585 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 10:52:04,590 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 10:52:04,608 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 10:52:04,623 INFO L195 MainTranslator]: Completed translation [2019-01-12 10:52:04,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04 WrapperNode [2019-01-12 10:52:04,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 10:52:04,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 10:52:04,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 10:52:04,624 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 10:52:04,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 10:52:04,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 10:52:04,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 10:52:04,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 10:52:04,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (1/1) ... [2019-01-12 10:52:04,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 10:52:04,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 10:52:04,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 10:52:04,681 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 10:52:04,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (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 [2019-01-12 10:52:04,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 10:52:04,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 10:52:05,102 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 10:52:05,102 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 10:52:05,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:05 BoogieIcfgContainer [2019-01-12 10:52:05,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 10:52:05,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 10:52:05,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 10:52:05,114 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 10:52:05,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 10:52:04" (1/3) ... [2019-01-12 10:52:05,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5321cbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:52:05, skipping insertion in model container [2019-01-12 10:52:05,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:04" (2/3) ... [2019-01-12 10:52:05,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5321cbd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:52:05, skipping insertion in model container [2019-01-12 10:52:05,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:05" (3/3) ... [2019-01-12 10:52:05,121 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2019-01-12 10:52:05,130 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 10:52:05,136 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 10:52:05,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 10:52:05,182 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 10:52:05,182 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 10:52:05,182 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 10:52:05,183 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 10:52:05,183 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 10:52:05,183 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 10:52:05,183 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 10:52:05,183 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 10:52:05,183 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 10:52:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-12 10:52:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 10:52:05,203 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 10:52:05,204 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 10:52:05,206 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 10:52:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 10:52:05,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1514197582, now seen corresponding path program 1 times [2019-01-12 10:52:05,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 10:52:05,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 10:52:05,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 10:52:05,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 10:52:05,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 10:52:05,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 10:52:05,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 10:52:05,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 10:52:05,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 10:52:05,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 10:52:05,354 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-01-12 10:52:05,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 10:52:05,369 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-01-12 10:52:05,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 10:52:05,370 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-01-12 10:52:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 10:52:05,379 INFO L225 Difference]: With dead ends: 23 [2019-01-12 10:52:05,380 INFO L226 Difference]: Without dead ends: 11 [2019-01-12 10:52:05,383 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 [2019-01-12 10:52:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-12 10:52:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-12 10:52:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-12 10:52:05,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-01-12 10:52:05,414 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2019-01-12 10:52:05,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 10:52:05,415 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-01-12 10:52:05,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 10:52:05,415 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-01-12 10:52:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 10:52:05,416 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 10:52:05,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 10:52:05,416 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 10:52:05,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 10:52:05,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1513899672, now seen corresponding path program 1 times [2019-01-12 10:52:05,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 10:52:05,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 10:52:05,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 10:52:05,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 10:52:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 10:52:05,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 10:52:05,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 10:52:05,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 10:52:05,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 10:52:05,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 10:52:05,699 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 5 states. [2019-01-12 10:52:05,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 10:52:05,851 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-01-12 10:52:05,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 10:52:05,852 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-01-12 10:52:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 10:52:05,853 INFO L225 Difference]: With dead ends: 16 [2019-01-12 10:52:05,853 INFO L226 Difference]: Without dead ends: 12 [2019-01-12 10:52:05,854 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-12 10:52:05,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-12 10:52:05,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-12 10:52:05,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-12 10:52:05,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-01-12 10:52:05,859 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2019-01-12 10:52:05,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 10:52:05,860 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-01-12 10:52:05,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 10:52:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-12 10:52:05,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-12 10:52:05,861 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 10:52:05,861 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 10:52:05,862 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 10:52:05,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 10:52:05,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1084138147, now seen corresponding path program 1 times [2019-01-12 10:52:05,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 10:52:05,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 10:52:05,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 10:52:05,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 10:52:06,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 10:52:06,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 10:52:06,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 10:52:06,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 10:52:06,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 10:52:06,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-12 10:52:06,020 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 6 states. [2019-01-12 10:52:06,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 10:52:06,309 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-01-12 10:52:06,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 10:52:06,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-01-12 10:52:06,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 10:52:06,310 INFO L225 Difference]: With dead ends: 14 [2019-01-12 10:52:06,310 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 10:52:06,311 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 10:52:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 10:52:06,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 10:52:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 10:52:06,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 10:52:06,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-12 10:52:06,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 10:52:06,312 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 10:52:06,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 10:52:06,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 10:52:06,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 10:52:06,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 10:52:06,353 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 10:52:06,354 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-12 10:52:06,354 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 30) no Hoare annotation was computed. [2019-01-12 10:52:06,354 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-01-12 10:52:06,354 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-01-12 10:52:06,355 INFO L451 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2019-01-12 10:52:06,355 INFO L451 ceAbstractionStarter]: At program point L34(lines 13 35) the Hoare annotation is: true [2019-01-12 10:52:06,355 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 10:52:06,355 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 10:52:06,355 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-01-12 10:52:06,355 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 21 30) the Hoare annotation is: (or (< 100 ULTIMATE.start_main_~z~0) (<= ULTIMATE.start_main_~x~0 98)) [2019-01-12 10:52:06,355 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-01-12 10:52:06,356 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-01-12 10:52:06,356 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-01-12 10:52:06,356 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-01-12 10:52:06,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 10:52:06 BoogieIcfgContainer [2019-01-12 10:52:06,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 10:52:06,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 10:52:06,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 10:52:06,367 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 10:52:06,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:05" (3/4) ... [2019-01-12 10:52:06,371 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 10:52:06,380 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 10:52:06,380 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 10:52:06,429 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 10:52:06,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 10:52:06,430 INFO L168 Benchmark]: Toolchain (without parser) took 2033.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -107.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:06,432 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. [2019-01-12 10:52:06,432 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:06,433 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 10:52:06,433 INFO L168 Benchmark]: Boogie Preprocessor took 26.42 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 10:52:06,434 INFO L168 Benchmark]: RCFGBuilder took 422.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:06,435 INFO L168 Benchmark]: TraceAbstraction took 1262.06 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:06,435 INFO L168 Benchmark]: Witness Printer took 62.19 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. [2019-01-12 10:52:06,439 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 225.48 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 29.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.42 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 422.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -164.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1262.06 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * Witness Printer took 62.19 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: 21]: Loop Invariant Derived loop invariant: 100 < z || x <= 98 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 11 SDslu, 23 SDs, 0 SdLazy, 53 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 9 HoareAnnotationTreeSize, 3 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...