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-acceleration/underapprox_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:28:11,237 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:28:11,241 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:28:11,256 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:28:11,256 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:28:11,257 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:28:11,258 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:28:11,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:28:11,262 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:28:11,263 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:28:11,264 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:28:11,264 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:28:11,265 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:28:11,266 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:28:11,267 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:28:11,268 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:28:11,269 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:28:11,271 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:28:11,273 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:28:11,275 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:28:11,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:28:11,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:28:11,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 22:28:11,296 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 [2018-10-26 22:28:11,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:28:11,327 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:28:11,328 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:28:11,328 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:28:11,329 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:28:11,330 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:28:11,330 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:28:11,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:28:11,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:28:11,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:28:11,331 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:28:11,331 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:28:11,331 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:28:11,331 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:28:11,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:28:11,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:28:11,332 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:28:11,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:28:11,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:28:11,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:28:11,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:28:11,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:28:11,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:28:11,334 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:28:11,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:28:11,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:28:11,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:28:11,334 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:28:11,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:28:11,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:28:11,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:28:11,400 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:28:11,401 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:28:11,402 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-10-26 22:28:11,462 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50644d725/906bde2db7e04702bcfeb4db7f396bad/FLAG7a1f55ddd [2018-10-26 22:28:11,915 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:28:11,916 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_true-unreach-call1_true-termination.i [2018-10-26 22:28:11,922 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50644d725/906bde2db7e04702bcfeb4db7f396bad/FLAG7a1f55ddd [2018-10-26 22:28:11,944 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50644d725/906bde2db7e04702bcfeb4db7f396bad [2018-10-26 22:28:11,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:28:11,957 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:28:11,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:11,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:28:11,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:28:11,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:11" (1/1) ... [2018-10-26 22:28:11,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7472627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:11, skipping insertion in model container [2018-10-26 22:28:11,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:11" (1/1) ... [2018-10-26 22:28:11,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:28:12,000 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:28:12,234 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:12,238 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:28:12,259 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:12,277 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:28:12,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12 WrapperNode [2018-10-26 22:28:12,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:12,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:12,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:28:12,280 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:28:12,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:12,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:28:12,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:28:12,321 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:28:12,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (1/1) ... [2018-10-26 22:28:12,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:28:12,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:28:12,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:28:12,349 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:28:12,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (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 [2018-10-26 22:28:12,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:28:12,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:28:12,675 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:28:12,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:12 BoogieIcfgContainer [2018-10-26 22:28:12,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:28:12,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:28:12,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:28:12,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:28:12,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:28:11" (1/3) ... [2018-10-26 22:28:12,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df15024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:12, skipping insertion in model container [2018-10-26 22:28:12,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:12" (2/3) ... [2018-10-26 22:28:12,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df15024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:12, skipping insertion in model container [2018-10-26 22:28:12,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:12" (3/3) ... [2018-10-26 22:28:12,685 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call1_true-termination.i [2018-10-26 22:28:12,695 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:28:12,703 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:28:12,719 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:28:12,753 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:28:12,753 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:28:12,754 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:28:12,754 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:28:12,754 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:28:12,754 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:28:12,754 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:28:12,755 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:28:12,755 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:28:12,770 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-26 22:28:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-26 22:28:12,776 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:12,777 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-26 22:28:12,780 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:12,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:12,787 INFO L82 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2018-10-26 22:28:12,789 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:12,790 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:12,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:12,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:12,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:12,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:12,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:28:12,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:28:12,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:28:12,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:28:12,915 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-10-26 22:28:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:12,930 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-10-26 22:28:12,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:28:12,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-26 22:28:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:12,942 INFO L225 Difference]: With dead ends: 20 [2018-10-26 22:28:12,942 INFO L226 Difference]: Without dead ends: 8 [2018-10-26 22:28:12,946 INFO L605 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 [2018-10-26 22:28:12,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-10-26 22:28:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-10-26 22:28:12,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-10-26 22:28:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-10-26 22:28:12,978 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-10-26 22:28:12,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:12,978 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-10-26 22:28:12,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:28:12,979 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-10-26 22:28:12,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 22:28:12,979 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:12,979 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:12,980 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:12,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:12,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1805923659, now seen corresponding path program 1 times [2018-10-26 22:28:12,980 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:12,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:12,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:12,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:12,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:13,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:13,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:13,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:28:13,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:28:13,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:28:13,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:28:13,084 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2018-10-26 22:28:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:13,143 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-26 22:28:13,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:28:13,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-26 22:28:13,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:13,145 INFO L225 Difference]: With dead ends: 14 [2018-10-26 22:28:13,145 INFO L226 Difference]: Without dead ends: 10 [2018-10-26 22:28:13,146 INFO L605 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 [2018-10-26 22:28:13,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-26 22:28:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-26 22:28:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-26 22:28:13,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-26 22:28:13,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-10-26 22:28:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:13,153 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-26 22:28:13,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:28:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-26 22:28:13,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 22:28:13,154 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:13,155 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:13,155 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:13,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:13,156 INFO L82 PathProgramCache]: Analyzing trace with hash 373599493, now seen corresponding path program 1 times [2018-10-26 22:28:13,156 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:13,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:13,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:13,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:13,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:13,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:13,294 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 [2018-10-26 22:28:13,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:13,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:13,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:13,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-26 22:28:13,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:28:13,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:28:13,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:28:13,401 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-10-26 22:28:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:13,433 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-26 22:28:13,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:28:13,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-26 22:28:13,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:13,434 INFO L225 Difference]: With dead ends: 16 [2018-10-26 22:28:13,434 INFO L226 Difference]: Without dead ends: 12 [2018-10-26 22:28:13,436 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:28:13,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-26 22:28:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-26 22:28:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-26 22:28:13,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-26 22:28:13,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-10-26 22:28:13,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:13,440 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-26 22:28:13,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:28:13,440 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-26 22:28:13,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-26 22:28:13,441 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:13,441 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:13,441 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:13,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1700389313, now seen corresponding path program 2 times [2018-10-26 22:28:13,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:13,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:13,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:13,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:13,607 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:13,608 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 [2018-10-26 22:28:13,623 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 22:28:13,641 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 22:28:13,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:13,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:13,697 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:13,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-26 22:28:13,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 22:28:13,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 22:28:13,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:28:13,698 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-10-26 22:28:13,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:13,814 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-10-26 22:28:13,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 22:28:13,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-26 22:28:13,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:13,816 INFO L225 Difference]: With dead ends: 18 [2018-10-26 22:28:13,816 INFO L226 Difference]: Without dead ends: 14 [2018-10-26 22:28:13,816 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-26 22:28:13,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-26 22:28:13,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-26 22:28:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-26 22:28:13,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-26 22:28:13,820 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-26 22:28:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:13,821 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-26 22:28:13,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 22:28:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-26 22:28:13,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 22:28:13,822 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:13,822 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:13,822 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:13,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:13,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1938806535, now seen corresponding path program 3 times [2018-10-26 22:28:13,823 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:13,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:13,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,824 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:13,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:14,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:14,170 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 [2018-10-26 22:28:14,180 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-26 22:28:14,225 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-26 22:28:14,226 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:14,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:14,279 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:14,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-26 22:28:14,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:28:14,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:28:14,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:14,281 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-26 22:28:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:14,329 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-10-26 22:28:14,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:28:14,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-26 22:28:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:14,331 INFO L225 Difference]: With dead ends: 20 [2018-10-26 22:28:14,331 INFO L226 Difference]: Without dead ends: 16 [2018-10-26 22:28:14,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-26 22:28:14,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-26 22:28:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-26 22:28:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-10-26 22:28:14,336 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-10-26 22:28:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:14,336 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-10-26 22:28:14,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:28:14,337 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-10-26 22:28:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:28:14,337 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:14,338 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:14,338 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:14,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:14,338 INFO L82 PathProgramCache]: Analyzing trace with hash 870477107, now seen corresponding path program 4 times [2018-10-26 22:28:14,338 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:14,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:14,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:14,340 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:14,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:14,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:14,481 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 [2018-10-26 22:28:14,492 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-26 22:28:14,505 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-26 22:28:14,506 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:14,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:14,549 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:14,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-26 22:28:14,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:28:14,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:28:14,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:14,551 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2018-10-26 22:28:14,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:14,704 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-26 22:28:14,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:28:14,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2018-10-26 22:28:14,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:14,707 INFO L225 Difference]: With dead ends: 22 [2018-10-26 22:28:14,707 INFO L226 Difference]: Without dead ends: 18 [2018-10-26 22:28:14,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:14,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-26 22:28:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-26 22:28:14,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-26 22:28:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-10-26 22:28:14,712 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-10-26 22:28:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:14,712 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-10-26 22:28:14,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:28:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-10-26 22:28:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 22:28:14,713 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:14,713 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:14,713 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:14,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:14,714 INFO L82 PathProgramCache]: Analyzing trace with hash -942372115, now seen corresponding path program 5 times [2018-10-26 22:28:14,714 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:14,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:14,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:14,715 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:14,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:14,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:14,929 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-26 22:28:14,942 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-26 22:28:14,970 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-26 22:28:14,970 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:14,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:15,043 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:15,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-10-26 22:28:15,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 22:28:15,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 22:28:15,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:28:15,044 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2018-10-26 22:28:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:15,230 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-10-26 22:28:15,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:28:15,233 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2018-10-26 22:28:15,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:15,234 INFO L225 Difference]: With dead ends: 24 [2018-10-26 22:28:15,234 INFO L226 Difference]: Without dead ends: 20 [2018-10-26 22:28:15,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:28:15,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-26 22:28:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-26 22:28:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-26 22:28:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-10-26 22:28:15,244 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-10-26 22:28:15,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:15,244 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-10-26 22:28:15,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 22:28:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-10-26 22:28:15,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 22:28:15,245 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:15,245 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:15,246 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:15,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:15,247 INFO L82 PathProgramCache]: Analyzing trace with hash 666247719, now seen corresponding path program 6 times [2018-10-26 22:28:15,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:15,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:15,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:15,249 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:15,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:22,169 WARN L179 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-26 22:28:36,950 WARN L179 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-26 22:28:41,494 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (+ (* 2863311531 c_ULTIMATE.start_main_~y~0) 1431655744))) (<= .cse0 (* 4294967296 (div .cse0 4294967296)))) is different from false [2018-10-26 22:28:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 22 refuted. 8 times theorem prover too weak. 0 trivial. 12 not checked. [2018-10-26 22:28:41,540 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:41,540 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:41,551 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-26 22:28:41,577 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-26 22:28:41,577 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:41,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:55,312 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 23 [2018-10-26 22:28:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:55,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:55,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-10-26 22:28:55,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-26 22:28:55,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-26 22:28:55,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=193, Unknown=14, NotChecked=28, Total=272 [2018-10-26 22:28:55,357 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 17 states. [2018-10-26 22:28:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:55,640 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-10-26 22:28:55,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:28:55,641 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2018-10-26 22:28:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:55,642 INFO L225 Difference]: With dead ends: 26 [2018-10-26 22:28:55,642 INFO L226 Difference]: Without dead ends: 22 [2018-10-26 22:28:55,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 39.8s TimeCoverageRelationStatistics Valid=42, Invalid=220, Unknown=14, NotChecked=30, Total=306 [2018-10-26 22:28:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-26 22:28:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-26 22:28:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 22:28:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-26 22:28:55,647 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-10-26 22:28:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:55,648 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-26 22:28:55,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-26 22:28:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-26 22:28:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 22:28:55,649 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:55,649 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:55,649 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:55,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:55,650 INFO L82 PathProgramCache]: Analyzing trace with hash 361681633, now seen corresponding path program 7 times [2018-10-26 22:28:55,650 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:55,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:55,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:55,651 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:55,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:55,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:55,799 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:55,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:55,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:55,873 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:55,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-10-26 22:28:55,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:28:55,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:28:55,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:55,875 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2018-10-26 22:28:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:56,024 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-26 22:28:56,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:28:56,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-10-26 22:28:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:56,026 INFO L225 Difference]: With dead ends: 22 [2018-10-26 22:28:56,027 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:28:56,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:28:56,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:28:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:28:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:28:56,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-26 22:28:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:56,028 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:28:56,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:28:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:28:56,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:28:56,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:28:56,140 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:28:56,140 INFO L425 ceAbstractionStarter]: For program point L11-1(lines 11 14) no Hoare annotation was computed. [2018-10-26 22:28:56,141 INFO L421 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~y~0 1) (<= ULTIMATE.start_main_~x~0 0) (<= 1 ULTIMATE.start_main_~y~0) (<= 0 ULTIMATE.start_main_~x~0)) (and (<= 6 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 64 v_ULTIMATE.start_main_~y~0_6)))) (<= ULTIMATE.start_main_~x~0 6)) (and (<= 5 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= (* 32 v_ULTIMATE.start_main_~y~0_6) ULTIMATE.start_main_~y~0))) (<= ULTIMATE.start_main_~x~0 5)) (and (<= ULTIMATE.start_main_~x~0 4) (<= 4 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= (* 16 v_ULTIMATE.start_main_~y~0_6) ULTIMATE.start_main_~y~0)))) (and (<= ULTIMATE.start_main_~x~0 3) (<= 3 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 8 v_ULTIMATE.start_main_~y~0_6))))) (and (<= 1 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 1) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1) (= ULTIMATE.start_main_~y~0 (* 2 v_ULTIMATE.start_main_~y~0_6))))) (and (<= ULTIMATE.start_main_~x~0 2) (<= 2 ULTIMATE.start_main_~x~0) (exists ((v_ULTIMATE.start_main_~y~0_6 Int)) (and (= ULTIMATE.start_main_~y~0 (* 4 v_ULTIMATE.start_main_~y~0_6)) (<= 1 v_ULTIMATE.start_main_~y~0_6) (<= v_ULTIMATE.start_main_~y~0_6 1))))) [2018-10-26 22:28:56,141 INFO L425 ceAbstractionStarter]: For program point L11-4(lines 11 14) no Hoare annotation was computed. [2018-10-26 22:28:56,141 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-26 22:28:56,141 INFO L428 ceAbstractionStarter]: At program point L3-2(lines 2 7) the Hoare annotation is: true [2018-10-26 22:28:56,141 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-26 22:28:56,141 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-26 22:28:56,141 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:28:56,142 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-26 22:28:56,142 INFO L425 ceAbstractionStarter]: For program point L8(lines 8 16) no Hoare annotation was computed. [2018-10-26 22:28:56,142 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-26 22:28:56,150 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,151 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,152 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,152 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,152 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,152 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,153 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,153 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,153 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,153 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,154 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,154 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,154 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,154 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,155 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,155 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,155 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,155 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,163 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,163 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,163 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,163 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,164 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,164 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,164 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,164 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,165 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,165 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,165 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,165 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,166 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,166 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,166 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,166 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,167 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,167 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:28:56 BoogieIcfgContainer [2018-10-26 22:28:56,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:28:56,171 INFO L168 Benchmark]: Toolchain (without parser) took 44214.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -498.0 MB). Peak memory consumption was 235.0 MB. Max. memory is 7.1 GB. [2018-10-26 22:28:56,172 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-10-26 22:28:56,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.89 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. [2018-10-26 22:28:56,174 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.59 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. [2018-10-26 22:28:56,174 INFO L168 Benchmark]: Boogie Preprocessor took 27.92 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. [2018-10-26 22:28:56,175 INFO L168 Benchmark]: RCFGBuilder took 327.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-26 22:28:56,176 INFO L168 Benchmark]: TraceAbstraction took 43493.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 274.3 MB). Peak memory consumption was 274.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:28:56,181 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 319.89 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 40.59 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 27.92 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 327.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43493.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 274.3 MB). Peak memory consumption was 274.3 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[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant [2018-10-26 22:28:56,192 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,192 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,192 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,192 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,193 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,193 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,193 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,193 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,193 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,194 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,194 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,194 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,194 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,194 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,195 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,195 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,195 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,195 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,196 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,196 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,197 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,197 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,197 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,197 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] [2018-10-26 22:28:56,200 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~y~0_6,QUANTIFIED] Derived loop invariant: ((((((((y <= 1 && x <= 0) && 1 <= y) && 0 <= x) || ((6 <= x && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 64 * v_ULTIMATE.start_main_~y~0_6)) && x <= 6)) || ((5 <= x && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && 32 * v_ULTIMATE.start_main_~y~0_6 == y)) && x <= 5)) || ((x <= 4 && 4 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && 16 * v_ULTIMATE.start_main_~y~0_6 == y))) || ((x <= 3 && 3 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 8 * v_ULTIMATE.start_main_~y~0_6))) || ((1 <= x && x <= 1) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (1 <= v_ULTIMATE.start_main_~y~0_6 && v_ULTIMATE.start_main_~y~0_6 <= 1) && y == 2 * v_ULTIMATE.start_main_~y~0_6))) || ((x <= 2 && 2 <= x) && (\exists v_ULTIMATE.start_main_~y~0_6 : int :: (y == 4 * v_ULTIMATE.start_main_~y~0_6 && 1 <= v_ULTIMATE.start_main_~y~0_6) && v_ULTIMATE.start_main_~y~0_6 <= 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 43.4s OverallTime, 9 OverallIterations, 8 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 90 SDtfs, 1 SDslu, 321 SDs, 0 SdLazy, 279 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 102 SyntacticMatches, 8 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 40.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=8, 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 135 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 41.3s InterpolantComputationTime, 223 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 207 ConstructedInterpolants, 14 QuantifiedInterpolants, 20153 SizeOfPredicates, 8 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 28/336 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...