./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/loop-acceleration/phases_true-unreach-call2_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a156731963582ce9a466285688eba3a68b58029 .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:22:37,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:22:37,388 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:22:37,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:22:37,401 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:22:37,402 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:22:37,403 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:22:37,404 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:22:37,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:22:37,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:22:37,408 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:22:37,408 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:22:37,409 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:22:37,410 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:22:37,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:22:37,411 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:22:37,412 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:22:37,414 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:22:37,416 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:22:37,417 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:22:37,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:22:37,419 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:22:37,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:22:37,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:22:37,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:22:37,423 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:22:37,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:22:37,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:22:37,425 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:22:37,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:22:37,427 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:22:37,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:22:37,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:22:37,428 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:22:37,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:22:37,429 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:22:37,429 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:22:37,454 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:22:37,456 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:22:37,457 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:22:37,457 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:22:37,457 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:22:37,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:22:37,458 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:22:37,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:22:37,459 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:22:37,460 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:22:37,460 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:22:37,460 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:22:37,460 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:22:37,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:22:37,461 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:22:37,462 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:22:37,462 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:22:37,462 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:22:37,462 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:22:37,463 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:22:37,463 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:22:37,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:22:37,463 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a156731963582ce9a466285688eba3a68b58029 [2019-01-14 17:22:37,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:22:37,535 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:22:37,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:22:37,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:22:37,543 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:22:37,544 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2019-01-14 17:22:37,598 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21199eb9e/0b1e3032cfa149f792dc9f491b5ee460/FLAGdcd539378 [2019-01-14 17:22:37,945 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:22:37,946 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2019-01-14 17:22:37,950 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21199eb9e/0b1e3032cfa149f792dc9f491b5ee460/FLAGdcd539378 [2019-01-14 17:22:38,335 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21199eb9e/0b1e3032cfa149f792dc9f491b5ee460 [2019-01-14 17:22:38,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:22:38,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:22:38,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:22:38,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:22:38,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:22:38,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3222e414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38, skipping insertion in model container [2019-01-14 17:22:38,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:22:38,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:22:38,563 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:22:38,568 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:22:38,589 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:22:38,608 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:22:38,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38 WrapperNode [2019-01-14 17:22:38,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:22:38,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:22:38,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:22:38,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:22:38,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:22:38,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:22:38,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:22:38,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:22:38,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (1/1) ... [2019-01-14 17:22:38,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:22:38,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:22:38,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:22:38,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:22:38,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (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 17:22:38,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:22:38,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:22:39,024 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:22:39,024 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:22:39,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:22:39 BoogieIcfgContainer [2019-01-14 17:22:39,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:22:39,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:22:39,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:22:39,029 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:22:39,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:22:38" (1/3) ... [2019-01-14 17:22:39,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70518796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:22:39, skipping insertion in model container [2019-01-14 17:22:39,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:22:38" (2/3) ... [2019-01-14 17:22:39,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70518796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:22:39, skipping insertion in model container [2019-01-14 17:22:39,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:22:39" (3/3) ... [2019-01-14 17:22:39,033 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2019-01-14 17:22:39,040 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:22:39,047 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:22:39,059 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:22:39,088 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:22:39,088 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:22:39,089 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:22:39,089 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:22:39,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:22:39,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:22:39,089 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:22:39,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:22:39,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:22:39,102 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-14 17:22:39,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:22:39,108 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:22:39,108 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:22:39,111 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:22:39,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:22:39,116 INFO L82 PathProgramCache]: Analyzing trace with hash 922384074, now seen corresponding path program 1 times [2019-01-14 17:22:39,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:22:39,119 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:22:39,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:39,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:22:39,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:22:39,209 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 17:22:39,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:22:39,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 17:22:39,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 17:22:39,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 17:22:39,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 17:22:39,229 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-01-14 17:22:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:22:39,241 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-01-14 17:22:39,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 17:22:39,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-01-14 17:22:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:22:39,250 INFO L225 Difference]: With dead ends: 18 [2019-01-14 17:22:39,250 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 17:22:39,253 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 [2019-01-14 17:22:39,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 17:22:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 17:22:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 17:22:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-01-14 17:22:39,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2019-01-14 17:22:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:22:39,286 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-01-14 17:22:39,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 17:22:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-01-14 17:22:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:22:39,287 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:22:39,287 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:22:39,287 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:22:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:22:39,288 INFO L82 PathProgramCache]: Analyzing trace with hash 922086164, now seen corresponding path program 1 times [2019-01-14 17:22:39,288 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:22:39,288 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:22:39,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:39,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:22:39,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:22:39,734 WARN L181 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2019-01-14 17:22:40,034 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2019-01-14 17:22:40,047 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 17:22:40,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:22:40,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 17:22:40,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:22:40,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:22:40,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:22:40,050 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 6 states. [2019-01-14 17:22:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:22:44,298 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-01-14 17:22:44,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 17:22:44,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-14 17:22:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:22:44,303 INFO L225 Difference]: With dead ends: 14 [2019-01-14 17:22:44,304 INFO L226 Difference]: Without dead ends: 10 [2019-01-14 17:22:44,304 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:22:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-14 17:22:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-01-14 17:22:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 17:22:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-01-14 17:22:44,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-01-14 17:22:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:22:44,309 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-01-14 17:22:44,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:22:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-14 17:22:44,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:22:44,310 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:22:44,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:22:44,310 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:22:44,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:22:44,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1411883511, now seen corresponding path program 1 times [2019-01-14 17:22:44,314 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:22:44,314 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:22:44,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:44,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:22:44,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:22:44,326 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-14 17:22:44,326 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-14 17:22:44,326 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-14 17:22:44,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:22:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:22:44,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:22:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:22:44,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:22:44,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 17:22:44,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:22:44,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:22:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:22:44,427 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2019-01-14 17:22:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:22:44,462 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2019-01-14 17:22:44,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:22:44,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-01-14 17:22:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:22:44,463 INFO L225 Difference]: With dead ends: 11 [2019-01-14 17:22:44,464 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:22:44,465 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:22:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:22:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:22:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:22:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:22:44,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-14 17:22:44,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:22:44,468 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:22:44,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:22:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:22:44,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:22:44,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:22:44,571 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:22:44,571 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2019-01-14 17:22:44,572 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-01-14 17:22:44,572 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 1) (<= (+ ULTIMATE.start_main_~x~0 (* 4294967296 (div ULTIMATE.start_main_~y~0 4294967296))) (+ (* 4294967296 (div ULTIMATE.start_main_~x~0 4294967296)) ULTIMATE.start_main_~y~0))) [2019-01-14 17:22:44,572 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-01-14 17:22:44,573 INFO L451 ceAbstractionStarter]: At program point L5-2(lines 1 22) the Hoare annotation is: true [2019-01-14 17:22:44,573 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:22:44,573 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:22:44,573 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-01-14 17:22:44,573 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 20) no Hoare annotation was computed. [2019-01-14 17:22:44,573 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-01-14 17:22:44,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:22:44 BoogieIcfgContainer [2019-01-14 17:22:44,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:22:44,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:22:44,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:22:44,585 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:22:44,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:22:39" (3/4) ... [2019-01-14 17:22:44,588 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:22:44,597 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:22:44,597 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:22:44,636 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:22:44,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:22:44,637 INFO L168 Benchmark]: Toolchain (without parser) took 6298.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -56.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:22:44,639 INFO L168 Benchmark]: CDTParser took 0.14 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. [2019-01-14 17:22:44,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:22:44,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.36 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:22:44,641 INFO L168 Benchmark]: Boogie Preprocessor took 36.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:22:44,641 INFO L168 Benchmark]: RCFGBuilder took 337.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:22:44,642 INFO L168 Benchmark]: TraceAbstraction took 5558.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:22:44,643 INFO L168 Benchmark]: Witness Printer took 51.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:22:44,647 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 269.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.36 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 337.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5558.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == 1 && x + 4294967296 * (y / 4294967296) <= 4294967296 * (x / 4294967296) + y - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...