./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test11_true-unreach-call_true-termination.c --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/ldv-regression/test11_true-unreach-call_true-termination.c -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 ff22ef1f1636739616d2fc1a8366a8c51606f555 ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 15:50:08,396 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 15:50:08,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 15:50:08,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 15:50:08,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 15:50:08,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 15:50:08,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 15:50:08,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 15:50:08,426 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 15:50:08,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 15:50:08,435 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 15:50:08,436 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 15:50:08,440 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 15:50:08,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 15:50:08,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 15:50:08,445 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 15:50:08,446 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 15:50:08,450 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 15:50:08,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 15:50:08,459 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 15:50:08,460 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 15:50:08,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 15:50:08,468 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 15:50:08,468 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 15:50:08,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 15:50:08,470 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 15:50:08,471 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 15:50:08,474 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 15:50:08,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 15:50:08,475 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 15:50:08,476 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 15:50:08,476 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 15:50:08,476 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 15:50:08,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 15:50:08,479 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 15:50:08,480 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 15:50:08,480 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 15:50:08,508 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 15:50:08,508 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 15:50:08,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 15:50:08,510 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 15:50:08,510 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 15:50:08,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 15:50:08,510 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 15:50:08,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 15:50:08,511 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 15:50:08,511 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 15:50:08,512 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 15:50:08,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 15:50:08,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 15:50:08,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 15:50:08,513 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 15:50:08,513 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 15:50:08,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 15:50:08,515 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 15:50:08,515 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 15:50:08,516 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 15:50:08,516 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 15:50:08,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 15:50:08,516 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 -> ff22ef1f1636739616d2fc1a8366a8c51606f555 [2019-01-14 15:50:08,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 15:50:08,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 15:50:08,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 15:50:08,577 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 15:50:08,577 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 15:50:08,578 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test11_true-unreach-call_true-termination.c [2019-01-14 15:50:08,628 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c4da586/c4e7c9cd14ec4b9db2eb691c4e1dc57a/FLAG5e1f4ef13 [2019-01-14 15:50:09,090 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 15:50:09,091 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test11_true-unreach-call_true-termination.c [2019-01-14 15:50:09,097 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c4da586/c4e7c9cd14ec4b9db2eb691c4e1dc57a/FLAG5e1f4ef13 [2019-01-14 15:50:09,448 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c4da586/c4e7c9cd14ec4b9db2eb691c4e1dc57a [2019-01-14 15:50:09,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 15:50:09,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 15:50:09,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 15:50:09,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 15:50:09,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 15:50:09,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33810a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09, skipping insertion in model container [2019-01-14 15:50:09,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 15:50:09,490 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 15:50:09,664 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:50:09,676 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 15:50:09,694 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 15:50:09,709 INFO L195 MainTranslator]: Completed translation [2019-01-14 15:50:09,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09 WrapperNode [2019-01-14 15:50:09,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 15:50:09,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 15:50:09,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 15:50:09,710 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 15:50:09,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 15:50:09,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 15:50:09,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 15:50:09,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 15:50:09,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (1/1) ... [2019-01-14 15:50:09,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 15:50:09,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 15:50:09,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 15:50:09,783 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 15:50:09,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (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 [2019-01-14 15:50:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 15:50:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 15:50:09,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 15:50:09,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 15:50:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 15:50:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 15:50:09,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 15:50:10,248 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 15:50:10,248 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-14 15:50:10,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:50:10 BoogieIcfgContainer [2019-01-14 15:50:10,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 15:50:10,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 15:50:10,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 15:50:10,253 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 15:50:10,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 03:50:09" (1/3) ... [2019-01-14 15:50:10,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ea2cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:50:10, skipping insertion in model container [2019-01-14 15:50:10,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:50:09" (2/3) ... [2019-01-14 15:50:10,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60ea2cc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 03:50:10, skipping insertion in model container [2019-01-14 15:50:10,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:50:10" (3/3) ... [2019-01-14 15:50:10,257 INFO L112 eAbstractionObserver]: Analyzing ICFG test11_true-unreach-call_true-termination.c [2019-01-14 15:50:10,265 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 15:50:10,272 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 15:50:10,288 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 15:50:10,319 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 15:50:10,320 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 15:50:10,320 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 15:50:10,320 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 15:50:10,320 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 15:50:10,320 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 15:50:10,321 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 15:50:10,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 15:50:10,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 15:50:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-01-14 15:50:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 15:50:10,347 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:50:10,348 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:50:10,351 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:50:10,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:50:10,356 INFO L82 PathProgramCache]: Analyzing trace with hash 119352371, now seen corresponding path program 1 times [2019-01-14 15:50:10,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 15:50:10,358 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 15:50:10,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:10,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:50:10,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 15:50:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 15:50:10,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 15:50:10,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 15:50:10,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 15:50:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 15:50:10,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 15:50:10,575 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-01-14 15:50:10,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 15:50:10,803 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-01-14 15:50:10,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 15:50:10,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-01-14 15:50:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 15:50:10,816 INFO L225 Difference]: With dead ends: 22 [2019-01-14 15:50:10,816 INFO L226 Difference]: Without dead ends: 12 [2019-01-14 15:50:10,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 15:50:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-14 15:50:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-14 15:50:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-14 15:50:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-01-14 15:50:10,856 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-01-14 15:50:10,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 15:50:10,858 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-01-14 15:50:10,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 15:50:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-01-14 15:50:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 15:50:10,858 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:50:10,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:50:10,859 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:50:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:50:10,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1264891367, now seen corresponding path program 1 times [2019-01-14 15:50:10,860 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 15:50:10,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 15:50:10,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:10,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:50:10,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 15:50:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 15:50:11,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 15:50:11,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-14 15:50:11,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 15:50:11,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 15:50:11,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-14 15:50:11,167 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 6 states. [2019-01-14 15:50:11,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 15:50:11,306 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-01-14 15:50:11,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 15:50:11,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-14 15:50:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 15:50:11,309 INFO L225 Difference]: With dead ends: 14 [2019-01-14 15:50:11,309 INFO L226 Difference]: Without dead ends: 12 [2019-01-14 15:50:11,311 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 [2019-01-14 15:50:11,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-14 15:50:11,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-14 15:50:11,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-14 15:50:11,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-01-14 15:50:11,314 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-01-14 15:50:11,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 15:50:11,315 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-01-14 15:50:11,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 15:50:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-14 15:50:11,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 15:50:11,316 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 15:50:11,316 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 15:50:11,317 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 15:50:11,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 15:50:11,318 INFO L82 PathProgramCache]: Analyzing trace with hash -556924879, now seen corresponding path program 1 times [2019-01-14 15:50:11,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 15:50:11,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 15:50:11,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:11,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 15:50:11,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 15:50:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 15:50:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 15:50:11,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 15:50:11,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 15:50:11,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 15:50:11,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 15:50:11,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 15:50:11,410 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2019-01-14 15:50:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 15:50:11,577 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-01-14 15:50:11,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 15:50:11,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-01-14 15:50:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 15:50:11,578 INFO L225 Difference]: With dead ends: 12 [2019-01-14 15:50:11,579 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 15:50:11,579 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 15:50:11,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 15:50:11,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 15:50:11,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 15:50:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 15:50:11,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-14 15:50:11,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 15:50:11,580 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 15:50:11,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 15:50:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 15:50:11,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 15:50:11,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 15:50:11,620 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 15:50:11,620 INFO L444 ceAbstractionStarter]: At program point L31(lines 12 32) the Hoare annotation is: (not (= ULTIMATE.start_main_~pc~0.base 0)) [2019-01-14 15:50:11,620 INFO L444 ceAbstractionStarter]: At program point L25(lines 12 32) the Hoare annotation is: false [2019-01-14 15:50:11,621 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-01-14 15:50:11,621 INFO L448 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-01-14 15:50:11,621 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-01-14 15:50:11,621 INFO L448 ceAbstractionStarter]: For program point L9-2(line 9) no Hoare annotation was computed. [2019-01-14 15:50:11,621 INFO L444 ceAbstractionStarter]: At program point L9-3(lines 7 10) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~pc~0.base 0)) (= ULTIMATE.start_main_~pc~0.offset |ULTIMATE.start_main_~#c~0.offset|) (= ULTIMATE.start_main_~pc~0.base |ULTIMATE.start_main_~#c~0.base|)) [2019-01-14 15:50:11,621 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 15:50:11,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 15:50:11,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 15:50:11,622 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-01-14 15:50:11,622 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2019-01-14 15:50:11,622 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2019-01-14 15:50:11,623 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-01-14 15:50:11,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 03:50:11 BoogieIcfgContainer [2019-01-14 15:50:11,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 15:50:11,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 15:50:11,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 15:50:11,639 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 15:50:11,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:50:10" (3/4) ... [2019-01-14 15:50:11,645 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 15:50:11,659 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 15:50:11,659 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 15:50:11,724 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 15:50:11,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 15:50:11,725 INFO L168 Benchmark]: Toolchain (without parser) took 2273.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -111.6 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-01-14 15:50:11,728 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 15:50:11,728 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.08 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 15:50:11,729 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.88 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 15:50:11,730 INFO L168 Benchmark]: Boogie Preprocessor took 34.30 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 15:50:11,730 INFO L168 Benchmark]: RCFGBuilder took 466.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-14 15:50:11,732 INFO L168 Benchmark]: TraceAbstraction took 1388.18 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. [2019-01-14 15:50:11,733 INFO L168 Benchmark]: Witness Printer took 85.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 15:50:11,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 256.08 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.88 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.30 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 466.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1388.18 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: 53.4 MB). Peak memory consumption was 53.4 MB. Max. memory is 11.5 GB. * Witness Printer took 85.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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: 12]: Loop Invariant Derived loop invariant: !(pc == 0) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (!(pc == 0) && pc == c) && pc == c - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 26 SDslu, 39 SDs, 0 SdLazy, 24 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s 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, 4 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 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, 974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...