java -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 22:43:43,584 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 22:43:43,588 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 22:43:43,603 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 22:43:43,603 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 22:43:43,604 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 22:43:43,605 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 22:43:43,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 22:43:43,609 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 22:43:43,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 22:43:43,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 22:43:43,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 22:43:43,612 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 22:43:43,612 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 22:43:43,614 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 22:43:43,614 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 22:43:43,615 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 22:43:43,617 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 22:43:43,620 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 22:43:43,623 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 22:43:43,624 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 22:43:43,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 22:43:43,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 22:43:43,635 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 22:43:43,635 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 22:43:43,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 22:43:43,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 22:43:43,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 22:43:43,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 22:43:43,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 22:43:43,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 22:43:43,642 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 22:43:43,646 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 22:43:43,676 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 22:43:43,676 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 22:43:43,677 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 22:43:43,677 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 22:43:43,678 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 22:43:43,678 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 22:43:43,678 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 22:43:43,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 22:43:43,679 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 22:43:43,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 22:43:43,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 22:43:43,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 22:43:43,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 22:43:43,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 22:43:43,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 22:43:43,681 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 22:43:43,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 22:43:43,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 22:43:43,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 22:43:43,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:43:43,682 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 22:43:43,682 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 22:43:43,682 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 22:43:43,683 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 22:43:43,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 22:43:43,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 22:43:43,683 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 22:43:43,683 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 22:43:43,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 22:43:43,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 22:43:43,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 22:43:43,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 22:43:43,778 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 22:43:43,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-11-06 22:43:43,841 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c73159c/354fe564850346189723da653cbf4f8f/FLAG09f94aed6 [2018-11-06 22:43:44,221 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 22:43:44,222 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_true-unreach-call3_true-termination.i [2018-11-06 22:43:44,228 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c73159c/354fe564850346189723da653cbf4f8f/FLAG09f94aed6 [2018-11-06 22:43:44,242 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7c73159c/354fe564850346189723da653cbf4f8f [2018-11-06 22:43:44,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 22:43:44,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 22:43:44,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 22:43:44,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 22:43:44,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 22:43:44,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19823fae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44, skipping insertion in model container [2018-11-06 22:43:44,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 22:43:44,293 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 22:43:44,531 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:43:44,537 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 22:43:44,561 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 22:43:44,590 INFO L193 MainTranslator]: Completed translation [2018-11-06 22:43:44,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44 WrapperNode [2018-11-06 22:43:44,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 22:43:44,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 22:43:44,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 22:43:44,592 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 22:43:44,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 22:43:44,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 22:43:44,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 22:43:44,637 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 22:43:44,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... [2018-11-06 22:43:44,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 22:43:44,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 22:43:44,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 22:43:44,662 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 22:43:44,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 22:43:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-06 22:43:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-06 22:43:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 22:43:44,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 22:43:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-06 22:43:44,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-06 22:43:45,247 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 22:43:45,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:45 BoogieIcfgContainer [2018-11-06 22:43:45,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 22:43:45,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 22:43:45,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 22:43:45,252 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 22:43:45,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:43:44" (1/3) ... [2018-11-06 22:43:45,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de8309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:45, skipping insertion in model container [2018-11-06 22:43:45,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:44" (2/3) ... [2018-11-06 22:43:45,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de8309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:45, skipping insertion in model container [2018-11-06 22:43:45,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:45" (3/3) ... [2018-11-06 22:43:45,256 INFO L112 eAbstractionObserver]: Analyzing ICFG array_true-unreach-call3_true-termination.i [2018-11-06 22:43:45,265 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 22:43:45,272 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 22:43:45,289 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 22:43:45,321 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 22:43:45,322 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 22:43:45,323 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 22:43:45,323 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 22:43:45,323 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 22:43:45,323 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 22:43:45,323 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 22:43:45,323 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 22:43:45,324 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 22:43:45,340 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-06 22:43:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-06 22:43:45,347 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:45,348 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:45,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:45,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:45,357 INFO L82 PathProgramCache]: Analyzing trace with hash -363800598, now seen corresponding path program 1 times [2018-11-06 22:43:45,359 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:45,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:45,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:45,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:45,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:43:45,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:43:45,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 22:43:45,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-06 22:43:45,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-06 22:43:45,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:43:45,492 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-11-06 22:43:45,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:45,510 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2018-11-06 22:43:45,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-06 22:43:45,511 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-06 22:43:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:45,524 INFO L225 Difference]: With dead ends: 41 [2018-11-06 22:43:45,527 INFO L226 Difference]: Without dead ends: 19 [2018-11-06 22:43:45,530 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-06 22:43:45,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-06 22:43:45,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-06 22:43:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-06 22:43:45,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-06 22:43:45,561 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-06 22:43:45,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:45,561 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-06 22:43:45,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-06 22:43:45,561 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-06 22:43:45,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-06 22:43:45,562 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:45,562 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:45,563 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:45,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:45,563 INFO L82 PathProgramCache]: Analyzing trace with hash 485330878, now seen corresponding path program 1 times [2018-11-06 22:43:45,563 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:45,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:45,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:45,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:43:45,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 22:43:45,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 22:43:45,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 22:43:45,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 22:43:45,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:43:45,633 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-06 22:43:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:45,749 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2018-11-06 22:43:45,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 22:43:45,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-06 22:43:45,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:45,754 INFO L225 Difference]: With dead ends: 43 [2018-11-06 22:43:45,754 INFO L226 Difference]: Without dead ends: 33 [2018-11-06 22:43:45,755 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 22:43:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-06 22:43:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2018-11-06 22:43:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-06 22:43:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-06 22:43:45,764 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2018-11-06 22:43:45,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:45,764 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-06 22:43:45,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 22:43:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-06 22:43:45,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-06 22:43:45,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:45,766 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:45,767 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:45,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:45,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1601329125, now seen corresponding path program 1 times [2018-11-06 22:43:45,768 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:45,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:45,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:43:45,840 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:43:45,841 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:43:45,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:45,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:43:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:43:45,986 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:43:45,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-06 22:43:45,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 22:43:45,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 22:43:45,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:43:45,988 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2018-11-06 22:43:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:46,209 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2018-11-06 22:43:46,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 22:43:46,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-11-06 22:43:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:46,213 INFO L225 Difference]: With dead ends: 61 [2018-11-06 22:43:46,213 INFO L226 Difference]: Without dead ends: 47 [2018-11-06 22:43:46,215 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 22:43:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-06 22:43:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2018-11-06 22:43:46,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-06 22:43:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2018-11-06 22:43:46,225 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 18 [2018-11-06 22:43:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:46,226 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2018-11-06 22:43:46,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 22:43:46,226 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2018-11-06 22:43:46,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-06 22:43:46,228 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:46,229 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:46,229 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:46,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash -202423842, now seen corresponding path program 2 times [2018-11-06 22:43:46,230 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:46,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:46,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:46,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:46,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 22:43:46,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:43:46,430 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:43:46,442 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-06 22:43:46,480 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-06 22:43:46,480 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:43:46,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:43:46,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-06 22:43:46,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:43:46,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2018-11-06 22:43:46,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 22:43:46,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 22:43:46,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:43:46,625 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 7 states. [2018-11-06 22:43:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:46,929 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2018-11-06 22:43:46,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-06 22:43:46,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-06 22:43:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:46,930 INFO L225 Difference]: With dead ends: 74 [2018-11-06 22:43:46,931 INFO L226 Difference]: Without dead ends: 49 [2018-11-06 22:43:46,931 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-06 22:43:46,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-06 22:43:46,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2018-11-06 22:43:46,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-06 22:43:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2018-11-06 22:43:46,938 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 23 [2018-11-06 22:43:46,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:46,938 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2018-11-06 22:43:46,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 22:43:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2018-11-06 22:43:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-06 22:43:46,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:46,940 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:46,940 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:46,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash -740361691, now seen corresponding path program 1 times [2018-11-06 22:43:46,941 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:46,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:46,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:46,942 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-06 22:43:46,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:47,033 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 22:43:47,033 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:43:47,033 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:43:47,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:47,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:43:47,100 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 22:43:47,122 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:43:47,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-06 22:43:47,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-06 22:43:47,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-06 22:43:47,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:43:47,124 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 7 states. [2018-11-06 22:43:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:47,270 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2018-11-06 22:43:47,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 22:43:47,271 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2018-11-06 22:43:47,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:47,272 INFO L225 Difference]: With dead ends: 87 [2018-11-06 22:43:47,272 INFO L226 Difference]: Without dead ends: 63 [2018-11-06 22:43:47,273 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-06 22:43:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-06 22:43:47,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2018-11-06 22:43:47,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-06 22:43:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-11-06 22:43:47,280 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 43 [2018-11-06 22:43:47,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:47,280 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-11-06 22:43:47,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-06 22:43:47,280 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-11-06 22:43:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-06 22:43:47,282 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:47,282 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:47,282 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:47,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:47,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1428827710, now seen corresponding path program 2 times [2018-11-06 22:43:47,283 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:47,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:47,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:47,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 22:43:47,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:47,382 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 22:43:47,383 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:43:47,383 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:43:47,403 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-06 22:43:47,433 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-06 22:43:47,433 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:43:47,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:43:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 22:43:47,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 22:43:47,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-06 22:43:47,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 22:43:47,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 22:43:47,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:43:47,485 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 8 states. [2018-11-06 22:43:47,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:47,809 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2018-11-06 22:43:47,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 22:43:47,810 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-11-06 22:43:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:47,811 INFO L225 Difference]: With dead ends: 106 [2018-11-06 22:43:47,811 INFO L226 Difference]: Without dead ends: 77 [2018-11-06 22:43:47,812 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-06 22:43:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-11-06 22:43:47,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2018-11-06 22:43:47,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-06 22:43:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-11-06 22:43:47,830 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 48 [2018-11-06 22:43:47,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:47,830 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-11-06 22:43:47,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 22:43:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-11-06 22:43:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-06 22:43:47,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 22:43:47,835 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 22:43:47,835 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 22:43:47,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 22:43:47,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1418316731, now seen corresponding path program 3 times [2018-11-06 22:43:47,836 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 22:43:47,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 22:43:47,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:47,837 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-06 22:43:47,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 22:43:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 22:43:48,348 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-06 22:43:48,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 22:43:48,349 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 22:43:48,357 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-06 22:43:48,401 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-06 22:43:48,401 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-06 22:43:48,404 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 22:43:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-06 22:43:48,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 22:43:48,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2018-11-06 22:43:48,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-06 22:43:48,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-06 22:43:48,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-11-06 22:43:48,624 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 11 states. [2018-11-06 22:43:48,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 22:43:48,995 INFO L93 Difference]: Finished difference Result 130 states and 145 transitions. [2018-11-06 22:43:48,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 22:43:48,996 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 53 [2018-11-06 22:43:48,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 22:43:48,997 INFO L225 Difference]: With dead ends: 130 [2018-11-06 22:43:48,997 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 22:43:48,999 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2018-11-06 22:43:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 22:43:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 22:43:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 22:43:49,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 22:43:49,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2018-11-06 22:43:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 22:43:49,001 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 22:43:49,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-06 22:43:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 22:43:49,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 22:43:49,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 22:43:49,076 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-06 22:43:49,076 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-06 22:43:49,077 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 15) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L421 ceAbstractionStarter]: At program point L17-5(lines 17 21) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1023) [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L17-6(lines 17 21) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L428 ceAbstractionStarter]: At program point L13-4(lines 13 15) the Hoare annotation is: true [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L9(lines 9 23) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 15) no Hoare annotation was computed. [2018-11-06 22:43:49,078 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L10-2(line 10) no Hoare annotation was computed. [2018-11-06 22:43:49,079 INFO L425 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-06 22:43:49,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:43:49 BoogieIcfgContainer [2018-11-06 22:43:49,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 22:43:49,091 INFO L168 Benchmark]: Toolchain (without parser) took 4838.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -550.1 MB). Peak memory consumption was 197.5 MB. Max. memory is 7.1 GB. [2018-11-06 22:43:49,093 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:43:49,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-11-06 22:43:49,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:43:49,095 INFO L168 Benchmark]: Boogie Preprocessor took 24.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 22:43:49,096 INFO L168 Benchmark]: RCFGBuilder took 586.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2018-11-06 22:43:49,097 INFO L168 Benchmark]: TraceAbstraction took 3841.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 230.4 MB). Peak memory consumption was 230.4 MB. Max. memory is 7.1 GB. [2018-11-06 22:43:49,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 586.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3841.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 230.4 MB). Peak memory consumption was 230.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 17]: Loop Invariant Derived loop invariant: i <= 1023 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 108 SDtfs, 275 SDslu, 211 SDs, 0 SdLazy, 276 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=6, 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, 7 MinimizatonAttempts, 44 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 20 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 393 NumberOfCodeBlocks, 353 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 26821 SizeOfPredicates, 9 NumberOfNonLiveVariables, 286 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 213/404 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...