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/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 15:43:37,875 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 15:43:37,878 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 15:43:37,891 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 15:43:37,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 15:43:37,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 15:43:37,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 15:43:37,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 15:43:37,897 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 15:43:37,898 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 15:43:37,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 15:43:37,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 15:43:37,900 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 15:43:37,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 15:43:37,902 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 15:43:37,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 15:43:37,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 15:43:37,905 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 15:43:37,907 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 15:43:37,909 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 15:43:37,910 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 15:43:37,911 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 15:43:37,914 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 15:43:37,924 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 [2018-10-23 15:43:37,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 15:43:37,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 15:43:37,952 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 15:43:37,952 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 15:43:37,953 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 15:43:37,953 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 15:43:37,953 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 15:43:37,953 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 15:43:37,953 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 15:43:37,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 15:43:37,955 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 15:43:37,955 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 15:43:37,955 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 15:43:37,955 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 15:43:37,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 15:43:37,956 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 15:43:37,956 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 15:43:37,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 15:43:37,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 15:43:37,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 15:43:37,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 15:43:37,958 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 15:43:37,958 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 15:43:37,958 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 15:43:37,958 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 15:43:37,958 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 15:43:37,959 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 15:43:37,959 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 15:43:38,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 15:43:38,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 15:43:38,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 15:43:38,032 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 15:43:38,033 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 15:43:38,034 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-23 15:43:38,096 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73588b421/ee22b72b735e4b2295586526defd4895/FLAG7e1f40a55 [2018-10-23 15:43:38,545 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 15:43:38,546 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-23 15:43:38,552 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73588b421/ee22b72b735e4b2295586526defd4895/FLAG7e1f40a55 [2018-10-23 15:43:38,568 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/73588b421/ee22b72b735e4b2295586526defd4895 [2018-10-23 15:43:38,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 15:43:38,578 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 15:43:38,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 15:43:38,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 15:43:38,583 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 15:43:38,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da13f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38, skipping insertion in model container [2018-10-23 15:43:38,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 15:43:38,623 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 15:43:38,835 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 15:43:38,839 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 15:43:38,867 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 15:43:38,894 INFO L193 MainTranslator]: Completed translation [2018-10-23 15:43:38,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38 WrapperNode [2018-10-23 15:43:38,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 15:43:38,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 15:43:38,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 15:43:38,896 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 15:43:38,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 15:43:38,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 15:43:38,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 15:43:38,942 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 15:43:38,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (1/1) ... [2018-10-23 15:43:38,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 15:43:38,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 15:43:38,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 15:43:38,978 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 15:43:38,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (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 [2018-10-23 15:43:39,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-23 15:43:39,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-23 15:43:39,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 15:43:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 15:43:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-23 15:43:39,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-23 15:43:39,632 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 15:43:39,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 03:43:39 BoogieIcfgContainer [2018-10-23 15:43:39,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 15:43:39,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 15:43:39,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 15:43:39,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 15:43:39,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 03:43:38" (1/3) ... [2018-10-23 15:43:39,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107f7bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 03:43:39, skipping insertion in model container [2018-10-23 15:43:39,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 03:43:38" (2/3) ... [2018-10-23 15:43:39,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@107f7bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 03:43:39, skipping insertion in model container [2018-10-23 15:43:39,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 03:43:39" (3/3) ... [2018-10-23 15:43:39,641 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-10-23 15:43:39,649 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 15:43:39,657 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 15:43:39,674 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 15:43:39,708 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 15:43:39,709 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 15:43:39,710 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 15:43:39,710 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 15:43:39,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 15:43:39,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 15:43:39,710 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 15:43:39,710 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 15:43:39,711 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 15:43:39,728 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-10-23 15:43:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-23 15:43:39,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:39,737 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:39,739 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:39,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:39,745 INFO L82 PathProgramCache]: Analyzing trace with hash -591883500, now seen corresponding path program 1 times [2018-10-23 15:43:39,747 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:39,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:39,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:39,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:39,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 15:43:39,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 15:43:39,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 15:43:39,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-23 15:43:39,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-23 15:43:39,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 15:43:39,923 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-10-23 15:43:39,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:39,947 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2018-10-23 15:43:39,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 15:43:39,950 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-23 15:43:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:39,962 INFO L225 Difference]: With dead ends: 105 [2018-10-23 15:43:39,963 INFO L226 Difference]: Without dead ends: 41 [2018-10-23 15:43:39,967 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 [2018-10-23 15:43:39,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-23 15:43:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-10-23 15:43:39,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-23 15:43:40,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2018-10-23 15:43:40,002 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 20 [2018-10-23 15:43:40,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:40,003 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2018-10-23 15:43:40,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-23 15:43:40,003 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2018-10-23 15:43:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-23 15:43:40,005 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:40,005 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:40,006 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:40,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:40,006 INFO L82 PathProgramCache]: Analyzing trace with hash 460875127, now seen corresponding path program 1 times [2018-10-23 15:43:40,006 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:40,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:40,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:40,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:40,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 15:43:40,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 15:43:40,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 15:43:40,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 15:43:40,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 15:43:40,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-23 15:43:40,261 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 4 states. [2018-10-23 15:43:40,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:40,925 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2018-10-23 15:43:40,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 15:43:40,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-10-23 15:43:40,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:40,928 INFO L225 Difference]: With dead ends: 109 [2018-10-23 15:43:40,928 INFO L226 Difference]: Without dead ends: 73 [2018-10-23 15:43:40,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 15:43:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-23 15:43:40,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 47. [2018-10-23 15:43:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-23 15:43:40,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-10-23 15:43:40,937 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 23 [2018-10-23 15:43:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:40,937 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-10-23 15:43:40,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 15:43:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-10-23 15:43:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-23 15:43:40,939 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:40,939 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:40,940 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:40,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:40,940 INFO L82 PathProgramCache]: Analyzing trace with hash 2070922458, now seen corresponding path program 1 times [2018-10-23 15:43:40,940 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:40,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:40,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:40,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:40,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:41,739 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-23 15:43:42,947 WARN L179 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2018-10-23 15:43:43,277 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 40 [2018-10-23 15:43:43,620 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 26 [2018-10-23 15:43:44,058 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 19 [2018-10-23 15:43:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-23 15:43:44,306 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:43:44,306 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 [2018-10-23 15:43:44,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:44,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:43:44,403 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:43:44,405 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,411 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-23 15:43:44,475 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:44,477 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:44,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:43:44,479 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,489 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-10-23 15:43:44,561 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:44,562 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:44,564 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:44,565 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:43:44,566 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,574 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:13 [2018-10-23 15:43:44,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2018-10-23 15:43:44,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-10-23 15:43:44,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,823 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,833 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:44,834 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-10-23 15:43:45,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-10-23 15:43:45,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-10-23 15:43:45,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:45,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-10-23 15:43:45,278 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:45,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-10-23 15:43:45,290 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:45,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:45,354 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:45,354 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:51, output treesize:5 [2018-10-23 15:43:45,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-23 15:43:45,453 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:43:45,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 14] total 29 [2018-10-23 15:43:45,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-23 15:43:45,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-23 15:43:45,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2018-10-23 15:43:45,458 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 29 states. [2018-10-23 15:43:47,039 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2018-10-23 15:43:47,281 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-23 15:43:47,774 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-10-23 15:43:49,059 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-10-23 15:43:49,336 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-10-23 15:43:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:50,324 INFO L93 Difference]: Finished difference Result 203 states and 216 transitions. [2018-10-23 15:43:50,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-10-23 15:43:50,325 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 44 [2018-10-23 15:43:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:50,327 INFO L225 Difference]: With dead ends: 203 [2018-10-23 15:43:50,327 INFO L226 Difference]: Without dead ends: 142 [2018-10-23 15:43:50,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=770, Invalid=3012, Unknown=0, NotChecked=0, Total=3782 [2018-10-23 15:43:50,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-10-23 15:43:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 83. [2018-10-23 15:43:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-10-23 15:43:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-10-23 15:43:50,345 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 44 [2018-10-23 15:43:50,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:50,345 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-10-23 15:43:50,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-10-23 15:43:50,345 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-10-23 15:43:50,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-23 15:43:50,348 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:50,348 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:50,348 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:50,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:50,349 INFO L82 PathProgramCache]: Analyzing trace with hash 302880947, now seen corresponding path program 2 times [2018-10-23 15:43:50,349 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:50,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:50,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:50,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:50,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:51,062 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 15:43:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-23 15:43:51,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:43:51,101 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 [2018-10-23 15:43:51,116 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-23 15:43:51,154 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-23 15:43:51,154 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:43:51,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:43:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 16 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-23 15:43:51,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:43:51,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2018-10-23 15:43:51,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-23 15:43:51,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-23 15:43:51,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-23 15:43:51,286 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 13 states. [2018-10-23 15:43:51,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:51,910 INFO L93 Difference]: Finished difference Result 245 states and 256 transitions. [2018-10-23 15:43:51,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 15:43:51,910 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2018-10-23 15:43:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:51,912 INFO L225 Difference]: With dead ends: 245 [2018-10-23 15:43:51,912 INFO L226 Difference]: Without dead ends: 190 [2018-10-23 15:43:51,913 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-23 15:43:51,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-10-23 15:43:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 140. [2018-10-23 15:43:51,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-10-23 15:43:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 146 transitions. [2018-10-23 15:43:51,933 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 146 transitions. Word has length 72 [2018-10-23 15:43:51,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:51,933 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 146 transitions. [2018-10-23 15:43:51,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-23 15:43:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 146 transitions. [2018-10-23 15:43:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-23 15:43:51,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:51,936 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:51,937 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:51,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:51,937 INFO L82 PathProgramCache]: Analyzing trace with hash -29713602, now seen corresponding path program 1 times [2018-10-23 15:43:51,937 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:51,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:51,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:51,938 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:43:51,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:53,531 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 31 [2018-10-23 15:43:53,731 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2018-10-23 15:43:54,019 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 52 [2018-10-23 15:43:54,165 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 43 [2018-10-23 15:43:54,351 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2018-10-23 15:43:54,510 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2018-10-23 15:43:54,696 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 49 [2018-10-23 15:43:54,908 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2018-10-23 15:43:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-23 15:43:55,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:43:55,244 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 [2018-10-23 15:43:55,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:43:55,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:43:55,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:43:55,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,320 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,320 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-23 15:43:55,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-23 15:43:55,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,366 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-10-23 15:43:55,523 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:55,524 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:55,525 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:43:55,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 9 [2018-10-23 15:43:55,526 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,531 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:9 [2018-10-23 15:43:55,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2018-10-23 15:43:55,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-10-23 15:43:55,784 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,790 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:43:55,800 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-10-23 15:43:56,221 INFO L303 Elim1Store]: Index analysis took 110 ms [2018-10-23 15:43:56,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2018-10-23 15:43:56,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2018-10-23 15:43:56,239 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:56,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2018-10-23 15:43:56,286 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:56,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2018-10-23 15:43:56,311 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:56,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 29 [2018-10-23 15:43:56,343 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-10-23 15:43:56,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-10-23 15:43:56,372 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:56,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2018-10-23 15:43:56,405 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-23 15:43:56,424 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-23 15:43:56,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-23 15:43:56,452 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:59, output treesize:21 [2018-10-23 15:43:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-23 15:43:56,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:43:56,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17] total 34 [2018-10-23 15:43:56,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-10-23 15:43:56,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-10-23 15:43:56,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2018-10-23 15:43:56,558 INFO L87 Difference]: Start difference. First operand 140 states and 146 transitions. Second operand 34 states. [2018-10-23 15:43:59,113 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2018-10-23 15:43:59,285 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 68 [2018-10-23 15:43:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:43:59,794 INFO L93 Difference]: Finished difference Result 167 states and 172 transitions. [2018-10-23 15:43:59,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-23 15:43:59,795 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 74 [2018-10-23 15:43:59,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:43:59,797 INFO L225 Difference]: With dead ends: 167 [2018-10-23 15:43:59,797 INFO L226 Difference]: Without dead ends: 114 [2018-10-23 15:43:59,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 60 SyntacticMatches, 14 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=470, Invalid=2286, Unknown=0, NotChecked=0, Total=2756 [2018-10-23 15:43:59,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-23 15:43:59,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 89. [2018-10-23 15:43:59,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-10-23 15:43:59,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2018-10-23 15:43:59,808 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 74 [2018-10-23 15:43:59,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:43:59,809 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2018-10-23 15:43:59,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-10-23 15:43:59,809 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2018-10-23 15:43:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-10-23 15:43:59,811 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:43:59,812 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:43:59,812 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:43:59,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:43:59,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2002832634, now seen corresponding path program 3 times [2018-10-23 15:43:59,813 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:43:59,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:43:59,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:59,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 15:43:59,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:43:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:44:00,475 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-23 15:44:02,046 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-10-23 15:44:02,046 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:44:02,046 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 [2018-10-23 15:44:02,054 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-23 15:44:02,337 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-23 15:44:02,337 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:44:02,344 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:44:02,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:44:02,353 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,414 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,414 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-23 15:44:02,468 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:02,470 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:02,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:44:02,471 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,482 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-10-23 15:44:02,525 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:02,526 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:02,526 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:02,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:44:02,528 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:02,537 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-23 15:44:03,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-23 15:44:03,350 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-23 15:44:03,351 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,362 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,394 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2018-10-23 15:44:03,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 64 [2018-10-23 15:44:03,768 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:03,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 63 [2018-10-23 15:44:03,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,784 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,812 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:03,813 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:91, output treesize:87 [2018-10-23 15:44:04,547 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 85 [2018-10-23 15:44:04,555 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:04,556 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:04,558 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:04,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 104 [2018-10-23 15:44:04,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:04,582 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:04,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:04,620 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:114, output treesize:110 [2018-10-23 15:44:05,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2018-10-23 15:44:05,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 10 [2018-10-23 15:44:05,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:05,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-10-23 15:44:05,283 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:05,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-10-23 15:44:05,292 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:05,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:05,303 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:05,304 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:85, output treesize:5 [2018-10-23 15:44:05,430 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 15:44:05,451 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:44:05,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 33] total 47 [2018-10-23 15:44:05,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-10-23 15:44:05,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-10-23 15:44:05,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1866, Unknown=0, NotChecked=0, Total=2162 [2018-10-23 15:44:05,453 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand 47 states. [2018-10-23 15:44:09,262 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2018-10-23 15:44:09,462 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2018-10-23 15:44:09,914 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2018-10-23 15:44:10,135 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2018-10-23 15:44:13,596 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-10-23 15:44:14,718 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-23 15:44:15,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:44:15,398 INFO L93 Difference]: Finished difference Result 453 states and 470 transitions. [2018-10-23 15:44:15,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-10-23 15:44:15,399 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 86 [2018-10-23 15:44:15,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:44:15,402 INFO L225 Difference]: With dead ends: 453 [2018-10-23 15:44:15,402 INFO L226 Difference]: Without dead ends: 402 [2018-10-23 15:44:15,407 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 56 SyntacticMatches, 8 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6161 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2361, Invalid=15999, Unknown=0, NotChecked=0, Total=18360 [2018-10-23 15:44:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2018-10-23 15:44:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 206. [2018-10-23 15:44:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-10-23 15:44:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 215 transitions. [2018-10-23 15:44:15,431 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 215 transitions. Word has length 86 [2018-10-23 15:44:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:44:15,432 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 215 transitions. [2018-10-23 15:44:15,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-10-23 15:44:15,432 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 215 transitions. [2018-10-23 15:44:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-23 15:44:15,434 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:44:15,435 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:44:15,435 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:44:15,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:44:15,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1574955397, now seen corresponding path program 2 times [2018-10-23 15:44:15,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:44:15,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:44:15,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:15,436 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:44:15,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:44:16,627 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 45 [2018-10-23 15:44:17,769 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2018-10-23 15:44:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-10-23 15:44:18,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:44:18,055 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 [2018-10-23 15:44:18,063 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-23 15:44:18,099 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-23 15:44:18,100 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:44:18,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:44:18,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:44:18,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,116 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-23 15:44:18,160 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,161 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:44:18,162 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,168 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,168 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:15 [2018-10-23 15:44:18,200 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,201 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,202 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:44:18,203 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,207 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:13 [2018-10-23 15:44:18,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-23 15:44:18,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-23 15:44:18,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,684 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:18,684 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:55, output treesize:51 [2018-10-23 15:44:18,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 58 [2018-10-23 15:44:18,989 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:18,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2018-10-23 15:44:18,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,018 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,030 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,030 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2018-10-23 15:44:19,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-10-23 15:44:19,489 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:19,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2018-10-23 15:44:19,491 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-10-23 15:44:19,515 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 6 [2018-10-23 15:44:19,524 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,531 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:19,537 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:86, output treesize:6 [2018-10-23 15:44:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-23 15:44:19,651 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:44:19,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 42 [2018-10-23 15:44:19,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-10-23 15:44:19,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-10-23 15:44:19,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1552, Unknown=0, NotChecked=0, Total=1722 [2018-10-23 15:44:19,654 INFO L87 Difference]: Start difference. First operand 206 states and 215 transitions. Second operand 42 states. [2018-10-23 15:44:23,304 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2018-10-23 15:44:23,489 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2018-10-23 15:44:24,819 WARN L179 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2018-10-23 15:44:24,976 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2018-10-23 15:44:25,556 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2018-10-23 15:44:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:44:26,546 INFO L93 Difference]: Finished difference Result 314 states and 323 transitions. [2018-10-23 15:44:26,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-10-23 15:44:26,547 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 95 [2018-10-23 15:44:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:44:26,548 INFO L225 Difference]: With dead ends: 314 [2018-10-23 15:44:26,548 INFO L226 Difference]: Without dead ends: 238 [2018-10-23 15:44:26,552 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 77 SyntacticMatches, 17 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=1179, Invalid=6303, Unknown=0, NotChecked=0, Total=7482 [2018-10-23 15:44:26,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-10-23 15:44:26,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 142. [2018-10-23 15:44:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-10-23 15:44:26,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 147 transitions. [2018-10-23 15:44:26,575 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 147 transitions. Word has length 95 [2018-10-23 15:44:26,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:44:26,575 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 147 transitions. [2018-10-23 15:44:26,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-10-23 15:44:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 147 transitions. [2018-10-23 15:44:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-23 15:44:26,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:44:26,577 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:44:26,578 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:44:26,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:44:26,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1924838217, now seen corresponding path program 4 times [2018-10-23 15:44:26,578 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:44:26,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:44:26,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:26,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:44:26,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:44:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 60 proven. 100 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-23 15:44:27,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:44:27,376 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 [2018-10-23 15:44:27,383 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-23 15:44:27,423 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-23 15:44:27,424 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:44:27,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:44:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 60 proven. 100 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-10-23 15:44:27,600 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:44:27,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2018-10-23 15:44:27,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-23 15:44:27,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-23 15:44:27,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-10-23 15:44:27,602 INFO L87 Difference]: Start difference. First operand 142 states and 147 transitions. Second operand 17 states. [2018-10-23 15:44:29,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:44:29,261 INFO L93 Difference]: Finished difference Result 398 states and 411 transitions. [2018-10-23 15:44:29,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-23 15:44:29,262 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 121 [2018-10-23 15:44:29,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:44:29,264 INFO L225 Difference]: With dead ends: 398 [2018-10-23 15:44:29,264 INFO L226 Difference]: Without dead ends: 312 [2018-10-23 15:44:29,265 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 116 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-10-23 15:44:29,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-10-23 15:44:29,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 243. [2018-10-23 15:44:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-10-23 15:44:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 251 transitions. [2018-10-23 15:44:29,289 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 251 transitions. Word has length 121 [2018-10-23 15:44:29,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:44:29,290 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 251 transitions. [2018-10-23 15:44:29,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-23 15:44:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 251 transitions. [2018-10-23 15:44:29,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-23 15:44:29,292 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:44:29,292 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:44:29,293 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:44:29,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:44:29,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1130647529, now seen corresponding path program 3 times [2018-10-23 15:44:29,293 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:44:29,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:44:29,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:29,294 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:44:29,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:44:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:44:30,125 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-23 15:44:30,705 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2018-10-23 15:44:30,845 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 30 [2018-10-23 15:44:31,038 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 38 [2018-10-23 15:44:31,321 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 43 [2018-10-23 15:44:31,512 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 48 [2018-10-23 15:44:31,662 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2018-10-23 15:44:31,835 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 47 [2018-10-23 15:44:32,265 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2018-10-23 15:44:32,591 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 40 [2018-10-23 15:44:32,759 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 44 [2018-10-23 15:44:33,047 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-10-23 15:44:33,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:44:33,048 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 [2018-10-23 15:44:33,057 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-23 15:44:46,504 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-10-23 15:44:46,504 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:44:46,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:44:46,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:44:46,532 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,545 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-23 15:44:46,553 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:46,555 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:46,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:44:46,556 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,567 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-10-23 15:44:46,600 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:46,601 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:46,602 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:44:46,602 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:44:46,603 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,616 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-23 15:44:46,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2018-10-23 15:44:46,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-10-23 15:44:46,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,925 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,941 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:46,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:49, output treesize:45 [2018-10-23 15:44:49,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 70 [2018-10-23 15:44:49,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 59 [2018-10-23 15:44:49,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:49,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:49,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:49,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:84, output treesize:80 [2018-10-23 15:44:52,403 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-10-23 15:44:54,831 WARN L179 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 56 [2018-10-23 15:44:55,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 68 [2018-10-23 15:44:55,022 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 10 [2018-10-23 15:44:55,022 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:55,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-10-23 15:44:55,037 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:55,045 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-10-23 15:44:55,046 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:44:55,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:55,075 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:44:55,075 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:98, output treesize:5 [2018-10-23 15:44:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 4 proven. 69 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-23 15:44:55,232 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:44:55,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 46 [2018-10-23 15:44:55,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-10-23 15:44:55,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-10-23 15:44:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1833, Unknown=1, NotChecked=0, Total=2070 [2018-10-23 15:44:55,234 INFO L87 Difference]: Start difference. First operand 243 states and 251 transitions. Second operand 46 states. [2018-10-23 15:44:57,471 WARN L179 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2018-10-23 15:45:01,585 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 62 [2018-10-23 15:45:08,878 WARN L179 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-10-23 15:45:11,551 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse8 (- |c_ULTIMATE.start_main_~#A~0.offset|))) (let ((.cse5 (+ .cse8 8))) (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0.base|)) (.cse4 (+ |c_ULTIMATE.start_main_~#A~0.offset| 8)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#C~0.base|)) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#A~0.base|)) (.cse6 (+ .cse5 |c_ULTIMATE.start_main_~#A~0.offset|))) (and (not (= |c_ULTIMATE.start_main_~#A~0.base| |c_ULTIMATE.start_main_~#B~0.base|)) (not (= |c_ULTIMATE.start_main_~#B~0.base| |c_ULTIMATE.start_main_~#C~0.base|)) (let ((.cse1 (* 4 (mod (+ c_ULTIMATE.start_main_~i~0 4294967295) 4294967296)))) (= (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~#C~0.offset|)) (+ (select .cse2 (+ .cse1 |c_ULTIMATE.start_main_~#A~0.offset|)) (select .cse3 (+ |c_ULTIMATE.start_main_~#B~0.offset| .cse1))))) (= (select .cse0 (+ |c_ULTIMATE.start_main_~#C~0.offset| 8)) (+ (select .cse2 .cse4) (select .cse3 (+ |c_ULTIMATE.start_main_~#B~0.offset| 8)))) (= |c_ULTIMATE.start_main_~#C~0.offset| 0) (= 1 (select |c_#valid| |c_ULTIMATE.start_main_~#A~0.base|)) (= (+ (select .cse2 (+ (* 4 (div .cse5 4)) |c_ULTIMATE.start_main_~#A~0.offset|)) (select .cse3 .cse4)) (select .cse0 .cse6)) (= 0 |c_ULTIMATE.start_main_~#B~0.offset|) (not (= |c_ULTIMATE.start_main_~#A~0.base| |c_ULTIMATE.start_main_~#C~0.base|)) (= 0 |c_ULTIMATE.start_main_~#C~0.offset|) (= |c_ULTIMATE.start_main_~#A~0.offset| 0) (= |c_ULTIMATE.start_main_#t~mem9| (select .cse2 (+ (* 4 (mod c_ULTIMATE.start_main_~i~0 4294967296)) |c_ULTIMATE.start_main_~#A~0.offset|))) (= |c_ULTIMATE.start_main_~#B~0.offset| 0) (let ((.cse7 (* 4 c_ULTIMATE.start_main_~i~0))) (<= (+ .cse7 |c_ULTIMATE.start_main_~#C~0.offset|) (+ (* 17179869184 (div (+ |c_ULTIMATE.start_main_~#C~0.offset| (+ .cse8 (+ (- (+ .cse8 .cse6)) (+ .cse7 (- 4))))) 17179869184)) 12))) (= (select |c_#valid| |c_ULTIMATE.start_main_~#B~0.base|) 1))))) is different from false [2018-10-23 15:45:12,389 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2018-10-23 15:45:12,591 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2018-10-23 15:45:12,774 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-10-23 15:45:22,573 WARN L179 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2018-10-23 15:45:27,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:45:27,262 INFO L93 Difference]: Finished difference Result 282 states and 290 transitions. [2018-10-23 15:45:27,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-23 15:45:27,262 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 125 [2018-10-23 15:45:27,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:45:27,264 INFO L225 Difference]: With dead ends: 282 [2018-10-23 15:45:27,264 INFO L226 Difference]: Without dead ends: 280 [2018-10-23 15:45:27,266 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 105 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1395 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=590, Invalid=4378, Unknown=6, NotChecked=138, Total=5112 [2018-10-23 15:45:27,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-10-23 15:45:27,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 268. [2018-10-23 15:45:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-10-23 15:45:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 277 transitions. [2018-10-23 15:45:27,296 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 277 transitions. Word has length 125 [2018-10-23 15:45:27,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:45:27,296 INFO L481 AbstractCegarLoop]: Abstraction has 268 states and 277 transitions. [2018-10-23 15:45:27,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-10-23 15:45:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 277 transitions. [2018-10-23 15:45:27,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-10-23 15:45:27,298 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:45:27,298 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:45:27,298 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:45:27,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:45:27,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1774609406, now seen corresponding path program 4 times [2018-10-23 15:45:27,299 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:45:27,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:45:27,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:45:27,301 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:45:27,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:45:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:45:28,679 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 31 [2018-10-23 15:45:28,919 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 32 [2018-10-23 15:45:29,075 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 32 [2018-10-23 15:45:29,348 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2018-10-23 15:45:29,703 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 42 [2018-10-23 15:45:30,241 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2018-10-23 15:45:30,389 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2018-10-23 15:45:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-10-23 15:45:30,667 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:45:30,667 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 15:45:30,676 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-23 15:45:30,738 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-23 15:45:30,738 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:45:30,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:45:30,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:45:30,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,753 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-10-23 15:45:30,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-10-23 15:45:30,795 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,799 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-10-23 15:45:30,831 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:45:30,833 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:45:30,833 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:45:30,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 9 [2018-10-23 15:45:30,835 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,846 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:9 [2018-10-23 15:45:30,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-23 15:45:30,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-23 15:45:30,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:30,996 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:9 [2018-10-23 15:45:31,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-23 15:45:31,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-23 15:45:31,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,015 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,015 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:12 [2018-10-23 15:45:31,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-23 15:45:31,023 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-23 15:45:31,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,026 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,036 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:12 [2018-10-23 15:45:31,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-23 15:45:31,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-23 15:45:31,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,053 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,062 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:12 [2018-10-23 15:45:31,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 33 [2018-10-23 15:45:31,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-10-23 15:45:31,159 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,170 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:32 [2018-10-23 15:45:31,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 55 [2018-10-23 15:45:31,543 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 59 [2018-10-23 15:45:31,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2018-10-23 15:45:31,575 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,604 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 18 [2018-10-23 15:45:31,605 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-10-23 15:45:31,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 22 [2018-10-23 15:45:31,631 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2018-10-23 15:45:31,654 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-23 15:45:31,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-23 15:45:31,694 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-23 15:45:31,694 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 7 variables, input treesize:59, output treesize:15 [2018-10-23 15:45:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-23 15:45:31,823 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:45:31,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21] total 43 [2018-10-23 15:45:31,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-10-23 15:45:31,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-10-23 15:45:31,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1643, Unknown=0, NotChecked=0, Total=1806 [2018-10-23 15:45:31,825 INFO L87 Difference]: Start difference. First operand 268 states and 277 transitions. Second operand 43 states. [2018-10-23 15:45:35,855 WARN L179 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-10-23 15:45:36,101 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-10-23 15:45:36,292 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2018-10-23 15:45:36,543 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2018-10-23 15:45:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:45:37,018 INFO L93 Difference]: Finished difference Result 287 states and 293 transitions. [2018-10-23 15:45:37,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-23 15:45:37,020 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 134 [2018-10-23 15:45:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:45:37,021 INFO L225 Difference]: With dead ends: 287 [2018-10-23 15:45:37,021 INFO L226 Difference]: Without dead ends: 188 [2018-10-23 15:45:37,024 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 118 SyntacticMatches, 16 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1384 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=699, Invalid=4413, Unknown=0, NotChecked=0, Total=5112 [2018-10-23 15:45:37,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-10-23 15:45:37,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 171. [2018-10-23 15:45:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-10-23 15:45:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 177 transitions. [2018-10-23 15:45:37,041 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 177 transitions. Word has length 134 [2018-10-23 15:45:37,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:45:37,041 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 177 transitions. [2018-10-23 15:45:37,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-10-23 15:45:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 177 transitions. [2018-10-23 15:45:37,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-23 15:45:37,042 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:45:37,043 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:45:37,043 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:45:37,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:45:37,043 INFO L82 PathProgramCache]: Analyzing trace with hash 388520720, now seen corresponding path program 5 times [2018-10-23 15:45:37,043 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:45:37,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:45:37,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:45:37,044 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:45:37,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:45:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:45:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 37 proven. 160 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-23 15:45:37,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:45:37,747 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 15:45:37,755 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-23 15:46:29,062 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-10-23 15:46:29,062 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:46:29,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:46:29,250 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 37 proven. 160 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-23 15:46:29,274 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:46:29,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 20 [2018-10-23 15:46:29,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-23 15:46:29,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-23 15:46:29,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2018-10-23 15:46:29,275 INFO L87 Difference]: Start difference. First operand 171 states and 177 transitions. Second operand 20 states. [2018-10-23 15:46:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:46:30,781 INFO L93 Difference]: Finished difference Result 458 states and 471 transitions. [2018-10-23 15:46:30,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-23 15:46:30,781 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 135 [2018-10-23 15:46:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:46:30,783 INFO L225 Difference]: With dead ends: 458 [2018-10-23 15:46:30,783 INFO L226 Difference]: Without dead ends: 357 [2018-10-23 15:46:30,784 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 129 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2018-10-23 15:46:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2018-10-23 15:46:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 297. [2018-10-23 15:46:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-10-23 15:46:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 307 transitions. [2018-10-23 15:46:30,816 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 307 transitions. Word has length 135 [2018-10-23 15:46:30,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:46:30,817 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 307 transitions. [2018-10-23 15:46:30,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-23 15:46:30,817 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 307 transitions. [2018-10-23 15:46:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-23 15:46:30,818 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:46:30,818 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:46:30,819 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:46:30,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:46:30,819 INFO L82 PathProgramCache]: Analyzing trace with hash 665729627, now seen corresponding path program 5 times [2018-10-23 15:46:30,819 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:46:30,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:46:30,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:46:30,820 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:46:30,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:46:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:46:31,501 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-23 15:46:31,873 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 38 [2018-10-23 15:46:32,035 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 43 [2018-10-23 15:46:32,220 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 50 [2018-10-23 15:46:32,368 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 55 [2018-10-23 15:46:32,591 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2018-10-23 15:46:37,208 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 55 [2018-10-23 15:46:37,406 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 48 [2018-10-23 15:46:37,554 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2018-10-23 15:46:37,757 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2018-10-23 15:46:37,981 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 45 [2018-10-23 15:46:38,371 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 46 [2018-10-23 15:46:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-10-23 15:46:38,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:46:38,740 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 15:46:38,748 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-23 15:47:28,608 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-23 15:47:28,609 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:47:29,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:47:29,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:47:29,509 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,527 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-23 15:47:29,530 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:29,531 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:29,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:47:29,532 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,564 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,565 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-10-23 15:47:29,598 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:29,599 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:29,600 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:29,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:47:29,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,612 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-23 15:47:29,869 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-23 15:47:29,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-23 15:47:29,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,874 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,886 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:22 [2018-10-23 15:47:29,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-10-23 15:47:29,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-10-23 15:47:29,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,896 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:25 [2018-10-23 15:47:29,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-10-23 15:47:29,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-10-23 15:47:29,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,979 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:25 [2018-10-23 15:47:29,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-10-23 15:47:29,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-10-23 15:47:29,987 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:29,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,006 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:25 [2018-10-23 15:47:30,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-10-23 15:47:30,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-10-23 15:47:30,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,120 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,120 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:25 [2018-10-23 15:47:30,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-10-23 15:47:30,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-10-23 15:47:30,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,130 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,144 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:22 [2018-10-23 15:47:30,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-23 15:47:30,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-23 15:47:30,154 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,173 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:44, output treesize:25 [2018-10-23 15:47:30,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-23 15:47:30,336 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-23 15:47:30,336 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,344 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,367 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:64, output treesize:60 [2018-10-23 15:47:30,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2018-10-23 15:47:30,529 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:30,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2018-10-23 15:47:30,531 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,564 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,565 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:48 [2018-10-23 15:47:30,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 50 [2018-10-23 15:47:30,645 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:30,647 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 51 [2018-10-23 15:47:30,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,682 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:67, output treesize:48 [2018-10-23 15:47:30,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 58 [2018-10-23 15:47:30,909 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:30,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 55 [2018-10-23 15:47:30,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,945 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:30,945 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:72, output treesize:68 [2018-10-23 15:47:31,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2018-10-23 15:47:31,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2018-10-23 15:47:31,452 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:31,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-10-23 15:47:31,464 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:31,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-10-23 15:47:31,472 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:31,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:31,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:31,482 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:68, output treesize:5 [2018-10-23 15:47:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 15:47:31,629 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:47:31,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26] total 45 [2018-10-23 15:47:31,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-10-23 15:47:31,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-10-23 15:47:31,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1757, Unknown=1, NotChecked=0, Total=1980 [2018-10-23 15:47:31,630 INFO L87 Difference]: Start difference. First operand 297 states and 307 transitions. Second operand 45 states. [2018-10-23 15:47:37,850 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2018-10-23 15:47:38,572 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-10-23 15:47:40,305 WARN L179 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2018-10-23 15:47:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:47:40,418 INFO L93 Difference]: Finished difference Result 413 states and 421 transitions. [2018-10-23 15:47:40,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-10-23 15:47:40,418 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 137 [2018-10-23 15:47:40,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:47:40,419 INFO L225 Difference]: With dead ends: 413 [2018-10-23 15:47:40,419 INFO L226 Difference]: Without dead ends: 402 [2018-10-23 15:47:40,422 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 114 SyntacticMatches, 16 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3807 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=1510, Invalid=10699, Unknown=1, NotChecked=0, Total=12210 [2018-10-23 15:47:40,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2018-10-23 15:47:40,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 312. [2018-10-23 15:47:40,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-10-23 15:47:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 322 transitions. [2018-10-23 15:47:40,452 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 322 transitions. Word has length 137 [2018-10-23 15:47:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:47:40,452 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 322 transitions. [2018-10-23 15:47:40,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-10-23 15:47:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 322 transitions. [2018-10-23 15:47:40,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-23 15:47:40,456 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:47:40,456 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:47:40,457 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:47:40,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:47:40,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1925939095, now seen corresponding path program 6 times [2018-10-23 15:47:40,457 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:47:40,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:47:40,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:47:40,458 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:47:40,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:47:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:47:41,275 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2018-10-23 15:47:41,526 WARN L179 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-10-23 15:47:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-10-23 15:47:43,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 15:47:43,186 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 15:47:43,194 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-23 15:47:46,573 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-23 15:47:46,573 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-23 15:47:46,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 15:47:46,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-10-23 15:47:46,600 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,608 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-10-23 15:47:46,613 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:46,613 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:46,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-10-23 15:47:46,614 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,624 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-10-23 15:47:46,651 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:46,652 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:46,652 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:46,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-23 15:47:46,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:46,661 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-23 15:47:47,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-10-23 15:47:47,460 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-10-23 15:47:47,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,462 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,483 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:34 [2018-10-23 15:47:47,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-23 15:47:47,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-23 15:47:47,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,846 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:47,868 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2018-10-23 15:47:48,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2018-10-23 15:47:48,115 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:48,116 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 43 [2018-10-23 15:47:48,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,151 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:47 [2018-10-23 15:47:48,371 INFO L303 Elim1Store]: Index analysis took 143 ms [2018-10-23 15:47:48,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2018-10-23 15:47:48,403 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:48,431 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 43 [2018-10-23 15:47:48,432 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,612 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:48,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:47 [2018-10-23 15:47:49,691 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-10-23 15:47:49,706 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 40 [2018-10-23 15:47:49,710 INFO L700 Elim1Store]: detected not equals via solver [2018-10-23 15:47:49,712 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 35 [2018-10-23 15:47:49,712 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:49,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:49,744 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:49,745 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:59, output treesize:44 [2018-10-23 15:47:49,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 44 [2018-10-23 15:47:49,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 43 [2018-10-23 15:47:49,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-10-23 15:47:49,883 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-23 15:47:49,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-10-23 15:47:49,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:81 [2018-10-23 15:47:50,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 59 [2018-10-23 15:47:50,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-23 15:47:50,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:50,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:50,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2018-10-23 15:47:50,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 43 [2018-10-23 15:47:50,398 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-10-23 15:47:50,435 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-23 15:47:50,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-23 15:47:50,528 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:133, output treesize:124 [2018-10-23 15:47:51,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-10-23 15:47:51,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-10-23 15:47:51,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:51,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-10-23 15:47:51,294 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:51,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2018-10-23 15:47:51,302 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-23 15:47:51,304 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:51,312 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-23 15:47:51,312 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:51, output treesize:5 [2018-10-23 15:47:51,485 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 30 proven. 303 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-23 15:47:51,506 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-23 15:47:51,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 37] total 53 [2018-10-23 15:47:51,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-10-23 15:47:51,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-10-23 15:47:51,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=2410, Unknown=0, NotChecked=0, Total=2756 [2018-10-23 15:47:51,507 INFO L87 Difference]: Start difference. First operand 312 states and 322 transitions. Second operand 53 states. [2018-10-23 15:47:56,538 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2018-10-23 15:47:56,757 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2018-10-23 15:47:57,016 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-10-23 15:47:57,875 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2018-10-23 15:47:58,480 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2018-10-23 15:47:58,950 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2018-10-23 15:47:59,171 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2018-10-23 15:47:59,437 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2018-10-23 15:47:59,649 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2018-10-23 15:47:59,910 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2018-10-23 15:48:00,101 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 48 [2018-10-23 15:48:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 15:48:00,672 INFO L93 Difference]: Finished difference Result 351 states and 359 transitions. [2018-10-23 15:48:00,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-10-23 15:48:00,672 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 149 [2018-10-23 15:48:00,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 15:48:00,674 INFO L225 Difference]: With dead ends: 351 [2018-10-23 15:48:00,674 INFO L226 Difference]: Without dead ends: 349 [2018-10-23 15:48:00,675 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 114 SyntacticMatches, 17 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1388, Invalid=7542, Unknown=0, NotChecked=0, Total=8930 [2018-10-23 15:48:00,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-10-23 15:48:00,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 312. [2018-10-23 15:48:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-10-23 15:48:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 320 transitions. [2018-10-23 15:48:00,707 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 320 transitions. Word has length 149 [2018-10-23 15:48:00,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 15:48:00,708 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 320 transitions. [2018-10-23 15:48:00,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-10-23 15:48:00,708 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 320 transitions. [2018-10-23 15:48:00,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-23 15:48:00,709 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 15:48:00,710 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 15:48:00,710 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 15:48:00,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 15:48:00,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1195367109, now seen corresponding path program 6 times [2018-10-23 15:48:00,710 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 15:48:00,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 15:48:00,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:48:00,711 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-23 15:48:00,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 15:48:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 15:48:01,331 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2018-10-23 15:48:02,724 WARN L179 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 39 Received shutdown request... [2018-10-23 15:48:03,075 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 15:48:03,079 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 15:48:03,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 03:48:03 BoogieIcfgContainer [2018-10-23 15:48:03,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 15:48:03,080 INFO L168 Benchmark]: Toolchain (without parser) took 264502.72 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -325.5 MB). Peak memory consumption was 771.8 MB. Max. memory is 7.1 GB. [2018-10-23 15:48:03,081 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-23 15:48:03,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.23 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. [2018-10-23 15:48:03,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.27 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. [2018-10-23 15:48:03,081 INFO L168 Benchmark]: Boogie Preprocessor took 35.55 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. [2018-10-23 15:48:03,081 INFO L168 Benchmark]: RCFGBuilder took 655.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -757.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2018-10-23 15:48:03,082 INFO L168 Benchmark]: TraceAbstraction took 263445.66 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 370.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 421.6 MB). Peak memory consumption was 791.7 MB. Max. memory is 7.1 GB. [2018-10-23 15:48:03,084 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.23 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 45.27 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 35.55 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 655.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 727.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -757.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263445.66 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 370.1 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 421.6 MB). Peak memory consumption was 791.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 6]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 6). Cancelled while BasicCegarLoop was analyzing trace of length 156 with TraceHistMax 6,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 10 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. TIMEOUT Result, 263.3s OverallTime, 14 OverallIterations, 7 TraceHistogramMax, 84.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 749 SDtfs, 8998 SDslu, 9597 SDs, 0 SdLazy, 16539 SolverSat, 1685 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 31.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1821 GetRequests, 996 SyntacticMatches, 106 SemanticMatches, 719 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 18920 ImplicationChecksByTransitivity, 96.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=12, 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: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 737 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 119.4s SatisfiabilityAnalysisTime, 55.2s InterpolantComputationTime, 2387 NumberOfCodeBlocks, 2387 NumberOfCodeBlocksAsserted, 52 NumberOfCheckSat, 2363 ConstructedInterpolants, 55 QuantifiedInterpolants, 6832106 SizeOfPredicates, 226 NumberOfNonLiveVariables, 2054 ConjunctsInSsa, 543 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 1227/3454 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown