java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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-invgen/nested9_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:47:48,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:47:48,620 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:47:48,636 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:47:48,636 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:47:48,637 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:47:48,639 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:47:48,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:47:48,645 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:47:48,645 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:47:48,655 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:47:48,655 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:47:48,656 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:47:48,660 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:47:48,661 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:47:48,662 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:47:48,665 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:47:48,667 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:47:48,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:47:48,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:47:48,676 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:47:48,677 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:47:48,680 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:47:48,695 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-22 15:47:48,724 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:47:48,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:47:48,725 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:47:48,726 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:47:48,726 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:47:48,726 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:47:48,727 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:47:48,727 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:47:48,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:47:48,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:47:48,727 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:47:48,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:47:48,728 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:47:48,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:47:48,728 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:47:48,728 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:47:48,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:47:48,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:47:48,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:47:48,729 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:47:48,729 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:47:48,730 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:47:48,731 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:47:48,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:47:48,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:47:48,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:47:48,801 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:47:48,802 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:47:48,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/nested9_true-unreach-call_true-termination.i [2018-10-22 15:47:48,869 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4cfbf2b31/c571247a1a5a4cad93eb8e864a0ca02c/FLAG7724fa364 [2018-10-22 15:47:49,287 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:47:49,288 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nested9_true-unreach-call_true-termination.i [2018-10-22 15:47:49,294 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4cfbf2b31/c571247a1a5a4cad93eb8e864a0ca02c/FLAG7724fa364 [2018-10-22 15:47:49,308 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4cfbf2b31/c571247a1a5a4cad93eb8e864a0ca02c [2018-10-22 15:47:49,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:47:49,319 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:47:49,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:47:49,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:47:49,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:47:49,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714e4cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49, skipping insertion in model container [2018-10-22 15:47:49,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:47:49,361 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:47:49,564 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:47:49,568 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:47:49,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:47:49,611 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:47:49,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49 WrapperNode [2018-10-22 15:47:49,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:47:49,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:47:49,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:47:49,614 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:47:49,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:47:49,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:47:49,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:47:49,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:47:49,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... [2018-10-22 15:47:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:47:49,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:47:49,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:47:49,697 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:47:49,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:47:49,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:47:49,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:47:50,235 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:47:50,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:47:50 BoogieIcfgContainer [2018-10-22 15:47:50,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:47:50,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:47:50,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:47:50,240 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:47:50,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:47:49" (1/3) ... [2018-10-22 15:47:50,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702717ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:47:50, skipping insertion in model container [2018-10-22 15:47:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:47:49" (2/3) ... [2018-10-22 15:47:50,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702717ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:47:50, skipping insertion in model container [2018-10-22 15:47:50,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:47:50" (3/3) ... [2018-10-22 15:47:50,244 INFO L112 eAbstractionObserver]: Analyzing ICFG nested9_true-unreach-call_true-termination.i [2018-10-22 15:47:50,254 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:47:50,273 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:47:50,291 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:47:50,322 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:47:50,323 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:47:50,323 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:47:50,323 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:47:50,323 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:47:50,324 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:47:50,324 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:47:50,324 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:47:50,324 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:47:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-22 15:47:50,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-22 15:47:50,348 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:47:50,349 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:47:50,352 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:47:50,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:47:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -698031714, now seen corresponding path program 1 times [2018-10-22 15:47:50,367 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:47:50,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:47:50,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:50,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:50,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:47:50,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:47:50,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-22 15:47:50,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:47:50,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:47:50,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:47:50,592 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-10-22 15:47:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:47:50,711 INFO L93 Difference]: Finished difference Result 50 states and 69 transitions. [2018-10-22 15:47:50,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:47:50,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-22 15:47:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:47:50,723 INFO L225 Difference]: With dead ends: 50 [2018-10-22 15:47:50,723 INFO L226 Difference]: Without dead ends: 25 [2018-10-22 15:47:50,727 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:47:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-10-22 15:47:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-10-22 15:47:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-22 15:47:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-10-22 15:47:50,765 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 15 [2018-10-22 15:47:50,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:47:50,765 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-10-22 15:47:50,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:47:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-10-22 15:47:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-22 15:47:50,767 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:47:50,767 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:47:50,767 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:47:50,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:47:50,768 INFO L82 PathProgramCache]: Analyzing trace with hash -463902908, now seen corresponding path program 1 times [2018-10-22 15:47:50,768 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:47:50,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:47:50,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:50,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:50,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:50,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:47:50,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:47:50,939 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:47:50,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:50,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:47:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:47:51,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:47:51,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2018-10-22 15:47:51,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:47:51,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:47:51,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:47:51,248 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 9 states. [2018-10-22 15:47:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:47:51,970 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-10-22 15:47:51,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-22 15:47:51,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-10-22 15:47:51,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:47:51,972 INFO L225 Difference]: With dead ends: 62 [2018-10-22 15:47:51,973 INFO L226 Difference]: Without dead ends: 60 [2018-10-22 15:47:51,975 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2018-10-22 15:47:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-10-22 15:47:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 27. [2018-10-22 15:47:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-22 15:47:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-10-22 15:47:51,984 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 20 [2018-10-22 15:47:51,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:47:51,985 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-10-22 15:47:51,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:47:51,985 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-10-22 15:47:51,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-22 15:47:51,986 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:47:51,986 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:47:51,987 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:47:51,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:47:51,987 INFO L82 PathProgramCache]: Analyzing trace with hash 953175746, now seen corresponding path program 1 times [2018-10-22 15:47:51,987 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:47:51,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:47:51,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:51,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:51,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:47:52,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:47:52,132 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:47:52,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:52,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:47:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:47:52,557 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:47:52,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2018-10-22 15:47:52,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 15:47:52,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 15:47:52,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:47:52,559 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 10 states. [2018-10-22 15:47:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:47:53,052 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2018-10-22 15:47:53,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-22 15:47:53,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-10-22 15:47:53,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:47:53,055 INFO L225 Difference]: With dead ends: 65 [2018-10-22 15:47:53,055 INFO L226 Difference]: Without dead ends: 49 [2018-10-22 15:47:53,056 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-10-22 15:47:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-22 15:47:53,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2018-10-22 15:47:53,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-22 15:47:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-10-22 15:47:53,067 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 25 [2018-10-22 15:47:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:47:53,067 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-10-22 15:47:53,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 15:47:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-10-22 15:47:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-22 15:47:53,069 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:47:53,069 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:47:53,069 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:47:53,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:47:53,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1367614380, now seen corresponding path program 1 times [2018-10-22 15:47:53,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:47:53,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:47:53,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:53,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:53,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-22 15:47:53,292 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:47:53,293 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:47:53,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:53,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:47:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-22 15:47:53,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:47:53,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 9 [2018-10-22 15:47:53,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 15:47:53,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 15:47:53,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-10-22 15:47:53,420 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 9 states. [2018-10-22 15:47:53,908 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2018-10-22 15:47:53,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:47:53,913 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2018-10-22 15:47:53,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 15:47:53,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-10-22 15:47:53,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:47:53,915 INFO L225 Difference]: With dead ends: 77 [2018-10-22 15:47:53,915 INFO L226 Difference]: Without dead ends: 46 [2018-10-22 15:47:53,916 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-10-22 15:47:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-10-22 15:47:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-10-22 15:47:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-22 15:47:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-10-22 15:47:53,930 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 35 [2018-10-22 15:47:53,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:47:53,932 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-10-22 15:47:53,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 15:47:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-10-22 15:47:53,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-22 15:47:53,933 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:47:53,933 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:47:53,934 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:47:53,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:47:53,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1002092266, now seen corresponding path program 2 times [2018-10-22 15:47:53,934 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:47:53,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:47:53,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:53,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:47:53,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:47:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:47:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-22 15:47:54,273 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:47:54,273 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-22 15:47:54,285 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:47:54,310 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-22 15:47:54,310 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:47:54,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:47:54,405 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-22 15:47:54,431 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:47:54,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2018-10-22 15:47:54,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-22 15:47:54,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-22 15:47:54,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-10-22 15:47:54,433 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 13 states. [2018-10-22 15:47:55,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:47:55,063 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2018-10-22 15:47:55,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-22 15:47:55,064 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2018-10-22 15:47:55,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:47:55,065 INFO L225 Difference]: With dead ends: 64 [2018-10-22 15:47:55,065 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:47:55,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=413, Unknown=0, NotChecked=0, Total=600 [2018-10-22 15:47:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:47:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:47:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:47:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:47:55,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2018-10-22 15:47:55,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:47:55,068 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:47:55,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-22 15:47:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:47:55,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:47:55,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:47:55,365 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-10-22 15:47:55,496 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2018-10-22 15:47:55,950 WARN L179 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2018-10-22 15:47:55,954 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 15:47:55,954 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-22 15:47:55,954 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:47:55,954 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:47:55,955 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:47:55,955 INFO L428 ceAbstractionStarter]: At program point L24(lines 11 26) the Hoare annotation is: true [2018-10-22 15:47:55,955 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 23) no Hoare annotation was computed. [2018-10-22 15:47:55,955 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 23) no Hoare annotation was computed. [2018-10-22 15:47:55,955 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-22 15:47:55,955 INFO L421 ceAbstractionStarter]: At program point L20-4(lines 20 23) the Hoare annotation is: (or (and (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~i~0 1) (<= ULTIMATE.start_main_~j~0 (* 2 ULTIMATE.start_main_~i~0))) (and (<= ULTIMATE.start_main_~i~0 0) (<= 0 ULTIMATE.start_main_~i~0)) (and (<= 2 ULTIMATE.start_main_~i~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2018-10-22 15:47:55,955 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:47:55,956 INFO L421 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse4 (* 2 ULTIMATE.start_main_~i~0))) (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= .cse4 ULTIMATE.start_main_~j~0)) (.cse3 (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~n~0))) (or (let ((.cse1 (* 3 ULTIMATE.start_main_~i~0))) (and (<= 2 ULTIMATE.start_main_~i~0) .cse0 (and (<= (+ ULTIMATE.start_main_~k~0 2) .cse1) .cse2) (< ULTIMATE.start_main_~j~0 .cse1) .cse3)) (and (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~i~0 1) (<= ULTIMATE.start_main_~j~0 (* 2 ULTIMATE.start_main_~i~0)))) (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~i~0) (<= (* 2 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~j~0))) .cse0 .cse2 .cse3 (<= ULTIMATE.start_main_~j~0 .cse4))))) [2018-10-22 15:47:55,956 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:47:55,956 INFO L428 ceAbstractionStarter]: At program point L25(lines 11 26) the Hoare annotation is: true [2018-10-22 15:47:55,956 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 23) no Hoare annotation was computed. [2018-10-22 15:47:55,956 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2018-10-22 15:47:55,956 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-10-22 15:47:55,957 INFO L421 ceAbstractionStarter]: At program point L21-4(lines 21 23) the Hoare annotation is: (let ((.cse4 (* 2 ULTIMATE.start_main_~i~0))) (let ((.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (<= .cse4 ULTIMATE.start_main_~j~0)) (.cse0 (* 3 ULTIMATE.start_main_~i~0)) (.cse2 (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~n~0))) (or (and (<= ULTIMATE.start_main_~i~0 1) (< ULTIMATE.start_main_~j~0 .cse0) .cse1 .cse2) (and (<= 2 ULTIMATE.start_main_~i~0) .cse3 .cse1 .cse2) (and (<= 1 ULTIMATE.start_main_~i~0) .cse3 (<= ULTIMATE.start_main_~j~0 (+ ULTIMATE.start_main_~k~0 1)) .cse1 .cse2) (and (<= .cse0 ULTIMATE.start_main_~j~0) .cse2 (<= ULTIMATE.start_main_~j~0 .cse4) (<= 0 ULTIMATE.start_main_~i~0))))) [2018-10-22 15:47:55,957 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:47:55,957 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 23) no Hoare annotation was computed. [2018-10-22 15:47:55,957 INFO L425 ceAbstractionStarter]: For program point L22-3(lines 22 23) no Hoare annotation was computed. [2018-10-22 15:47:55,957 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-22 15:47:55,958 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:47:55,958 INFO L421 ceAbstractionStarter]: At program point L22-4(lines 22 23) the Hoare annotation is: (let ((.cse3 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse0 (< ULTIMATE.start_main_~j~0 (* 3 ULTIMATE.start_main_~i~0))) (.cse1 (<= (* 2 ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~j~0)) (.cse2 (< ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~n~0))) (or (and (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~i~0 1) (<= ULTIMATE.start_main_~j~0 (* 2 ULTIMATE.start_main_~i~0)))) (<= ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~i~0) .cse0 .cse1 .cse2) (and .cse3 (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~i~0 1) (<= ULTIMATE.start_main_~j~0 (* 2 ULTIMATE.start_main_~i~0)))) .cse0 .cse1 .cse2) (and (<= 2 ULTIMATE.start_main_~i~0) .cse3 .cse0 .cse1 .cse2))) [2018-10-22 15:47:55,974 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,976 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:55,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:47:55 BoogieIcfgContainer [2018-10-22 15:47:55,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:47:55,990 INFO L168 Benchmark]: Toolchain (without parser) took 6671.95 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -436.5 MB). Peak memory consumption was 310.1 MB. Max. memory is 7.1 GB. [2018-10-22 15:47:55,991 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-22 15:47:55,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.96 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:47:55,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.86 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. [2018-10-22 15:47:55,993 INFO L168 Benchmark]: Boogie Preprocessor took 38.50 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. [2018-10-22 15:47:55,994 INFO L168 Benchmark]: RCFGBuilder took 539.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-22 15:47:55,995 INFO L168 Benchmark]: TraceAbstraction took 5752.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 337.6 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:47:56,000 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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. * CACSL2BoogieTranslator took 292.96 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.86 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 38.50 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 539.78 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.7 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5752.04 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 337.6 MB). Peak memory consumption was 337.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] * 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: 20]: Loop Invariant Derived loop invariant: (((1 <= i && i <= 1) && j <= 2 * i) || (i <= 0 && 0 <= i)) || (2 <= i && 1 == cond) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((((i <= 1 && j < 3 * i) && 2 * i <= j) && i < n) || (((2 <= i && 1 == cond) && 2 * i <= j) && i < n)) || ((((1 <= i && 1 == cond) && j <= k + 1) && 2 * i <= j) && i < n)) || (((3 * i <= j && i < n) && j <= 2 * i) && 0 <= i) - InvariantResult [Line: 3]: Loop Invariant [2018-10-22 15:47:56,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,013 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,014 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,015 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,015 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,015 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,016 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,016 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,016 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: ((((2 <= i && 1 == cond) && k + 2 <= 3 * i && 2 * i <= j) && j < 3 * i) && i < n) || ((((((\exists ULTIMATE.start_main_~i~0 : int :: (ULTIMATE.start_main_~i~0 <= k && ULTIMATE.start_main_~i~0 <= 1) && j <= 2 * ULTIMATE.start_main_~i~0) && (\exists ULTIMATE.start_main_~i~0 : int :: (1 <= ULTIMATE.start_main_~i~0 && k <= ULTIMATE.start_main_~i~0) && 2 * ULTIMATE.start_main_~i~0 <= j)) && 1 == cond) && 2 * i <= j) && i < n) && j <= 2 * i) - InvariantResult [Line: 22]: Loop Invariant [2018-10-22 15:47:56,017 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,017 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,017 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,018 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,018 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,018 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,019 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,019 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,019 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,020 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,020 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2018-10-22 15:47:56,020 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start_main_~i~0 : int :: (ULTIMATE.start_main_~i~0 <= k && ULTIMATE.start_main_~i~0 <= 1) && j <= 2 * ULTIMATE.start_main_~i~0) && k <= i) && j < 3 * i) && 2 * i <= j) && i < n) || ((((1 == cond && (\exists ULTIMATE.start_main_~i~0 : int :: (ULTIMATE.start_main_~i~0 + 1 <= k && ULTIMATE.start_main_~i~0 <= 1) && j <= 2 * ULTIMATE.start_main_~i~0)) && j < 3 * i) && 2 * i <= j) && i < n)) || ((((2 <= i && 1 == cond) && j < 3 * i) && 2 * i <= j) && i < n) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. SAFE Result, 5.6s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 115 SDtfs, 233 SDslu, 339 SDs, 0 SdLazy, 382 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=4, 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, 5 MinimizatonAttempts, 43 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 32 NumberOfFragments, 254 HoareAnnotationTreeSize, 6 FomulaSimplifications, 1713 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 298 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 255 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 246 ConstructedInterpolants, 9 QuantifiedInterpolants, 23457 SizeOfPredicates, 17 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 110/146 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...