java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/eureka_01_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:43:50,687 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:43:50,690 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:43:50,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:43:50,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:43:50,710 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:43:50,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:43:50,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:43:50,716 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:43:50,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:43:50,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:43:50,722 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:43:50,723 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:43:50,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:43:50,728 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:43:50,729 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:43:50,730 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:43:50,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:43:50,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:43:50,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:43:50,752 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:43:50,755 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:43:50,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:43:50,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:43:50,759 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:43:50,761 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:43:50,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:43:50,764 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:43:50,764 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:43:50,767 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:43:50,768 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:43:50,770 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-24 10:43:50,774 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 10:43:50,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:43:50,802 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:43:50,803 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:43:50,803 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:43:50,803 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:43:50,806 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:43:50,806 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:43:50,807 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:43:50,807 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:43:50,807 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:43:50,807 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:43:50,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:43:50,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:43:50,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:43:50,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:43:50,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:43:50,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:43:50,811 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:43:50,812 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:43:50,812 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:43:50,812 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:43:50,812 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:43:50,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:43:50,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:43:50,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:43:50,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:43:50,813 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:43:50,814 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:43:50,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:43:50,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:43:50,814 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:43:50,814 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:43:50,815 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:43:50,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:43:50,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:43:50,909 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:43:50,911 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:43:50,911 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:43:50,912 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_01_false-unreach-call_true-termination.i [2018-07-24 10:43:51,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8241abdc/f72110dc2ce6412a988487338c6b914c/FLAG83678cf44 [2018-07-24 10:43:51,466 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:43:51,467 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_01_false-unreach-call_true-termination.i [2018-07-24 10:43:51,475 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8241abdc/f72110dc2ce6412a988487338c6b914c/FLAG83678cf44 [2018-07-24 10:43:51,493 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8241abdc/f72110dc2ce6412a988487338c6b914c [2018-07-24 10:43:51,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:43:51,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:43:51,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:43:51,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:43:51,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:43:51,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51, skipping insertion in model container [2018-07-24 10:43:51,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,699 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:43:51,775 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:43:51,795 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:43:51,841 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:43:51,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51 WrapperNode [2018-07-24 10:43:51,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:43:51,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:43:51,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:43:51,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:43:51,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:43:51,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:43:51,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:43:51,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:43:51,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... [2018-07-24 10:43:51,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:43:51,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:43:51,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:43:51,969 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:43:51,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:43:52,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:43:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:43:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:43:52,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-24 10:43:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:43:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:43:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:43:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:43:52,699 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:43:52,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:43:52 BoogieIcfgContainer [2018-07-24 10:43:52,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:43:52,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:43:52,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:43:52,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:43:52,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:43:51" (1/3) ... [2018-07-24 10:43:52,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efc29fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:43:52, skipping insertion in model container [2018-07-24 10:43:52,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:43:51" (2/3) ... [2018-07-24 10:43:52,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efc29fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:43:52, skipping insertion in model container [2018-07-24 10:43:52,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:43:52" (3/3) ... [2018-07-24 10:43:52,709 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01_false-unreach-call_true-termination.i [2018-07-24 10:43:52,719 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:43:52,726 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:43:52,772 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:43:52,773 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:43:52,774 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:43:52,774 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:43:52,774 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:43:52,774 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:43:52,774 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:43:52,775 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:43:52,775 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:43:52,794 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-07-24 10:43:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-24 10:43:52,801 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:52,803 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:43:52,803 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:52,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1188391846, now seen corresponding path program 1 times [2018-07-24 10:43:52,811 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:52,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:52,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:52,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:52,863 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:53,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:53,014 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:43:53,014 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:43:53,015 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:43:53,020 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:43:53,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:43:53,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:43:53,036 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-07-24 10:43:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:53,059 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-07-24 10:43:53,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:43:53,061 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-07-24 10:43:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:53,073 INFO L225 Difference]: With dead ends: 70 [2018-07-24 10:43:53,074 INFO L226 Difference]: Without dead ends: 36 [2018-07-24 10:43:53,083 INFO L573 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 [2018-07-24 10:43:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-24 10:43:53,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-24 10:43:53,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-24 10:43:53,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-07-24 10:43:53,130 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 20 [2018-07-24 10:43:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:53,130 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-07-24 10:43:53,130 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:43:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-07-24 10:43:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-24 10:43:53,132 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:53,132 INFO L353 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] [2018-07-24 10:43:53,132 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:53,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1434479950, now seen corresponding path program 1 times [2018-07-24 10:43:53,133 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:53,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:53,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:53,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:53,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:53,293 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:43:53,294 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 10:43:53,294 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:43:53,295 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:43:53,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:43:53,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:43:53,297 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 5 states. [2018-07-24 10:43:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:53,762 INFO L93 Difference]: Finished difference Result 95 states and 115 transitions. [2018-07-24 10:43:53,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:43:53,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-07-24 10:43:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:53,767 INFO L225 Difference]: With dead ends: 95 [2018-07-24 10:43:53,767 INFO L226 Difference]: Without dead ends: 56 [2018-07-24 10:43:53,770 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:43:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-24 10:43:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 40. [2018-07-24 10:43:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-24 10:43:53,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-07-24 10:43:53,788 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 23 [2018-07-24 10:43:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:53,789 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-07-24 10:43:53,789 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:43:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-07-24 10:43:53,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-24 10:43:53,790 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:53,790 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 10:43:53,790 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:53,791 INFO L82 PathProgramCache]: Analyzing trace with hash -577588696, now seen corresponding path program 1 times [2018-07-24 10:43:53,792 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:53,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:53,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:53,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:53,793 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:54,005 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:54,005 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:43:54,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:54,025 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:54,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:54,141 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 [2018-07-24 10:43:54,143 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,151 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,151 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-07-24 10:43:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:54,224 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:54,474 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-07-24 10:43:54,475 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,477 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,478 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:3 [2018-07-24 10:43:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:54,516 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:54,516 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:43:54,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:54,534 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:54,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:54,591 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 [2018-07-24 10:43:54,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,595 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,596 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-07-24 10:43:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:54,649 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:54,670 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-07-24 10:43:54,671 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:43:54,673 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:3 [2018-07-24 10:43:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:54,704 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:43:54,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7, 7, 7] total 12 [2018-07-24 10:43:54,705 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:43:54,705 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 10:43:54,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 10:43:54,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-07-24 10:43:54,707 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 8 states. [2018-07-24 10:43:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:55,458 INFO L93 Difference]: Finished difference Result 102 states and 123 transitions. [2018-07-24 10:43:55,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 10:43:55,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-07-24 10:43:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:55,462 INFO L225 Difference]: With dead ends: 102 [2018-07-24 10:43:55,462 INFO L226 Difference]: Without dead ends: 100 [2018-07-24 10:43:55,463 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 114 SyntacticMatches, 10 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-07-24 10:43:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-24 10:43:55,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 67. [2018-07-24 10:43:55,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-24 10:43:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2018-07-24 10:43:55,478 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 32 [2018-07-24 10:43:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:55,478 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2018-07-24 10:43:55,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 10:43:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2018-07-24 10:43:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-24 10:43:55,480 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:55,480 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 10:43:55,480 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:55,481 INFO L82 PathProgramCache]: Analyzing trace with hash -358733978, now seen corresponding path program 1 times [2018-07-24 10:43:55,481 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:55,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:55,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:55,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:55,483 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:55,641 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:43:55,641 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 10:43:55,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:43:55,642 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 10:43:55,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 10:43:55,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:43:55,644 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand 3 states. [2018-07-24 10:43:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:55,690 INFO L93 Difference]: Finished difference Result 99 states and 118 transitions. [2018-07-24 10:43:55,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 10:43:55,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-07-24 10:43:55,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:55,695 INFO L225 Difference]: With dead ends: 99 [2018-07-24 10:43:55,695 INFO L226 Difference]: Without dead ends: 69 [2018-07-24 10:43:55,696 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 10:43:55,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-24 10:43:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2018-07-24 10:43:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-24 10:43:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2018-07-24 10:43:55,707 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 32 [2018-07-24 10:43:55,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:55,707 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2018-07-24 10:43:55,707 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 10:43:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2018-07-24 10:43:55,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-24 10:43:55,710 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:55,710 INFO L353 BasicCegarLoop]: trace histogram [3, 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] [2018-07-24 10:43:55,711 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:55,711 INFO L82 PathProgramCache]: Analyzing trace with hash 756526767, now seen corresponding path program 1 times [2018-07-24 10:43:55,711 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:55,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:55,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:55,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:55,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:55,923 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:55,924 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:43:55,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:55,939 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:55,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:56,015 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:56,195 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:56,195 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:43:56,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:56,211 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:56,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:56,258 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:56,313 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:56,315 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:43:56,315 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 10 [2018-07-24 10:43:56,315 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:43:56,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 10:43:56,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 10:43:56,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:43:56,317 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 9 states. [2018-07-24 10:43:56,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:56,939 INFO L93 Difference]: Finished difference Result 200 states and 243 transitions. [2018-07-24 10:43:56,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 10:43:56,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-07-24 10:43:56,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:56,943 INFO L225 Difference]: With dead ends: 200 [2018-07-24 10:43:56,943 INFO L226 Difference]: Without dead ends: 171 [2018-07-24 10:43:56,945 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 10:43:56,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-07-24 10:43:56,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 86. [2018-07-24 10:43:56,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-24 10:43:56,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 103 transitions. [2018-07-24 10:43:56,962 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 103 transitions. Word has length 36 [2018-07-24 10:43:56,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:56,962 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 103 transitions. [2018-07-24 10:43:56,962 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 10:43:56,962 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 103 transitions. [2018-07-24 10:43:56,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-24 10:43:56,964 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:56,964 INFO L353 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] [2018-07-24 10:43:56,964 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:56,964 INFO L82 PathProgramCache]: Analyzing trace with hash -312350977, now seen corresponding path program 1 times [2018-07-24 10:43:56,965 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:56,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:56,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:56,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:56,966 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,200 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:57,200 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:43:57,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:57,209 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:57,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,347 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:57,347 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:43:57,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:57,364 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:57,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,407 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,445 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:43:57,445 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-07-24 10:43:57,445 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:43:57,446 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 10:43:57,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 10:43:57,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-07-24 10:43:57,447 INFO L87 Difference]: Start difference. First operand 86 states and 103 transitions. Second operand 8 states. [2018-07-24 10:43:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:57,648 INFO L93 Difference]: Finished difference Result 194 states and 238 transitions. [2018-07-24 10:43:57,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 10:43:57,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2018-07-24 10:43:57,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:57,651 INFO L225 Difference]: With dead ends: 194 [2018-07-24 10:43:57,651 INFO L226 Difference]: Without dead ends: 151 [2018-07-24 10:43:57,652 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 138 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-07-24 10:43:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-24 10:43:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 116. [2018-07-24 10:43:57,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-24 10:43:57,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 139 transitions. [2018-07-24 10:43:57,673 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 139 transitions. Word has length 36 [2018-07-24 10:43:57,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:57,674 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 139 transitions. [2018-07-24 10:43:57,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 10:43:57,674 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 139 transitions. [2018-07-24 10:43:57,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-24 10:43:57,677 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:57,677 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:43:57,677 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:57,678 INFO L82 PathProgramCache]: Analyzing trace with hash -509201456, now seen corresponding path program 1 times [2018-07-24 10:43:57,678 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:57,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:57,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:57,679 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,813 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:57,813 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 10:43:57,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:57,821 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:57,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:57,948 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:58,015 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:58,015 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:43:58,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:58,031 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:58,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:58,085 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:43:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:43:58,146 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:43:58,146 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 10 [2018-07-24 10:43:58,146 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:43:58,147 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 10:43:58,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 10:43:58,148 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-07-24 10:43:58,149 INFO L87 Difference]: Start difference. First operand 116 states and 139 transitions. Second operand 9 states. [2018-07-24 10:43:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:43:58,630 INFO L93 Difference]: Finished difference Result 288 states and 349 transitions. [2018-07-24 10:43:58,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 10:43:58,631 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2018-07-24 10:43:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:43:58,634 INFO L225 Difference]: With dead ends: 288 [2018-07-24 10:43:58,634 INFO L226 Difference]: Without dead ends: 200 [2018-07-24 10:43:58,636 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 151 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-07-24 10:43:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-07-24 10:43:58,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 140. [2018-07-24 10:43:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-24 10:43:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 167 transitions. [2018-07-24 10:43:58,658 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 167 transitions. Word has length 40 [2018-07-24 10:43:58,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:43:58,659 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 167 transitions. [2018-07-24 10:43:58,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 10:43:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 167 transitions. [2018-07-24 10:43:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-24 10:43:58,661 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:43:58,661 INFO L353 BasicCegarLoop]: trace histogram [2, 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] [2018-07-24 10:43:58,661 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:43:58,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1571967800, now seen corresponding path program 1 times [2018-07-24 10:43:58,661 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:43:58,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:58,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:58,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:43:58,663 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:43:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:59,017 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2018-07-24 10:43:59,540 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2018-07-24 10:43:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:43:59,825 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:43:59,825 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 10:43:59,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:43:59,841 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:43:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:43:59,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:43:59,882 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:43:59,902 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:43:59,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:43:59,921 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:43:59,923 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:43:59,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:43:59,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:43:59,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:43:59,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:00,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:00,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:00,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:00,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:00,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:00,093 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:00,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:00,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:00,157 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:00,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:00,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:44:00,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:44:00,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:44:00,275 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:44:00,277 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,599 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,655 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,711 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,776 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,848 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,901 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:00,985 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,050 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,102 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,166 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,223 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,279 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,334 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,411 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,463 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,517 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,564 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,610 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,660 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,711 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:01,712 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 1 variables, input treesize:67, output treesize:104 [2018-07-24 10:44:01,967 WARN L169 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-07-24 10:44:01,988 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 6 treesize of output 5 [2018-07-24 10:44:01,989 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,132 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:106 [2018-07-24 10:44:02,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 3 [2018-07-24 10:44:02,330 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,374 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:9 [2018-07-24 10:44:02,432 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:02,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-07-24 10:44:02,433 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,437 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-07-24 10:44:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:02,563 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:02,700 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2018-07-24 10:44:02,746 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:02,751 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:02,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-07-24 10:44:02,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,754 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 13 treesize of output 6 [2018-07-24 10:44:02,754 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:02,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:02,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:02,762 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:13, output treesize:10 [2018-07-24 10:44:02,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:02,851 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:02,852 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:44:02,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:02,870 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:02,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:02,943 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:44:02,967 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:02,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:44:02,982 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:02,985 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:02,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:44:03,001 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:44:03,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:44:03,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:03,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:03,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:03,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:03,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:03,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:03,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:03,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:03,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:03,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:03,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:03,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:44:03,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:44:03,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:44:03,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:44:03,228 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,356 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,476 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,586 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,697 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,819 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:03,924 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,037 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,139 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,243 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,343 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,448 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,553 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,652 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,757 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,859 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:04,956 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,066 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,164 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,263 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,386 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:44:05,393 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:05,393 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:44:05,423 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:05,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:44:05,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:44:05,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:44:05,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:44:05,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:44:05,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:44:05,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:05,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:05,523 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:05,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:05,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:05,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:05,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:05,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:05,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:05,639 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:05,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:05,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:44:05,675 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,870 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,920 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:05,969 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,019 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,072 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,129 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,179 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,229 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,285 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,337 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,384 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,436 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,486 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,538 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,590 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,642 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,694 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,749 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:06,904 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:07,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:07,039 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:130, output treesize:204 [2018-07-24 10:44:07,231 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-24 10:44:07,239 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 [2018-07-24 10:44:07,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:07,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:07,393 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:206 [2018-07-24 10:44:07,634 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-07-24 10:44:07,959 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:44:07,973 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 3 [2018-07-24 10:44:07,973 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,055 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:109 [2018-07-24 10:44:08,173 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:08,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-07-24 10:44:08,174 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,265 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:111 [2018-07-24 10:44:08,529 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:08,529 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:08,583 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 17 [2018-07-24 10:44:08,712 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-24 10:44:08,723 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:08,725 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:08,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-07-24 10:44:08,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,732 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 13 treesize of output 6 [2018-07-24 10:44:08,732 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:08,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:08,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:08,746 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:13, output treesize:10 [2018-07-24 10:44:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:08,756 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:08,756 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10, 12, 10] total 33 [2018-07-24 10:44:08,756 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:08,757 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-24 10:44:08,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-24 10:44:08,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=928, Unknown=0, NotChecked=0, Total=1056 [2018-07-24 10:44:08,758 INFO L87 Difference]: Start difference. First operand 140 states and 167 transitions. Second operand 23 states. [2018-07-24 10:44:08,937 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2018-07-24 10:44:09,122 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2018-07-24 10:44:09,282 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-07-24 10:44:09,472 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-07-24 10:44:09,664 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-07-24 10:44:09,862 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2018-07-24 10:44:10,124 WARN L169 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 83 [2018-07-24 10:44:10,347 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81 [2018-07-24 10:44:10,512 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-07-24 10:44:10,739 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2018-07-24 10:44:10,912 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-07-24 10:44:11,106 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2018-07-24 10:44:11,427 WARN L169 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2018-07-24 10:44:11,665 WARN L169 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2018-07-24 10:44:11,824 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-07-24 10:44:11,999 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2018-07-24 10:44:12,201 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2018-07-24 10:44:12,440 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2018-07-24 10:44:12,602 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-07-24 10:44:12,952 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2018-07-24 10:44:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:14,031 INFO L93 Difference]: Finished difference Result 347 states and 417 transitions. [2018-07-24 10:44:14,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-24 10:44:14,031 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 40 [2018-07-24 10:44:14,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:14,034 INFO L225 Difference]: With dead ends: 347 [2018-07-24 10:44:14,034 INFO L226 Difference]: Without dead ends: 292 [2018-07-24 10:44:14,036 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 140 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=478, Invalid=2384, Unknown=0, NotChecked=0, Total=2862 [2018-07-24 10:44:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-07-24 10:44:14,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 162. [2018-07-24 10:44:14,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-24 10:44:14,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2018-07-24 10:44:14,068 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 40 [2018-07-24 10:44:14,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:14,069 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2018-07-24 10:44:14,069 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-24 10:44:14,069 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2018-07-24 10:44:14,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-24 10:44:14,071 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:14,071 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:14,071 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:14,071 INFO L82 PathProgramCache]: Analyzing trace with hash 402100638, now seen corresponding path program 2 times [2018-07-24 10:44:14,072 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:14,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:14,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:14,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:14,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:14,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:14,446 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:14,446 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-07-24 10:44:14,455 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:14,456 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:14,475 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:14,476 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:14,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:14,515 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 [2018-07-24 10:44:14,515 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,530 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-07-24 10:44:14,602 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 12 treesize of output 11 [2018-07-24 10:44:14,603 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,610 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-07-24 10:44:14,630 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:14,630 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:14,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 17 [2018-07-24 10:44:14,787 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:14,788 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:14,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-07-24 10:44:14,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,791 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 6 [2018-07-24 10:44:14,791 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:14,801 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:14,816 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:14,817 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:19, output treesize:24 [2018-07-24 10:44:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:14,941 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:14,941 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:44:14,960 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:14,960 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:15,053 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:15,053 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:15,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:15,071 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 [2018-07-24 10:44:15,072 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,079 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,080 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-07-24 10:44:15,126 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 12 treesize of output 15 [2018-07-24 10:44:15,127 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:15,132 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:5 [2018-07-24 10:44:15,155 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:15,155 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:21,287 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-07-24 10:44:21,310 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 11 treesize of output 4 [2018-07-24 10:44:21,311 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:21,312 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:21,312 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:21,313 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 10 [2018-07-24 10:44:21,313 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:21,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:21,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:21,377 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:15, output treesize:7 [2018-07-24 10:44:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:21,392 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:21,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 8, 8] total 21 [2018-07-24 10:44:21,393 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:21,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 10:44:21,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 10:44:21,393 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=336, Unknown=3, NotChecked=0, Total=420 [2018-07-24 10:44:21,394 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand 12 states. [2018-07-24 10:44:21,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:21,831 INFO L93 Difference]: Finished difference Result 316 states and 387 transitions. [2018-07-24 10:44:21,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 10:44:21,832 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-07-24 10:44:21,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:21,833 INFO L225 Difference]: With dead ends: 316 [2018-07-24 10:44:21,833 INFO L226 Difference]: Without dead ends: 196 [2018-07-24 10:44:21,834 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 146 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=104, Invalid=445, Unknown=3, NotChecked=0, Total=552 [2018-07-24 10:44:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-07-24 10:44:21,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 148. [2018-07-24 10:44:21,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-24 10:44:21,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2018-07-24 10:44:21,849 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 41 [2018-07-24 10:44:21,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:21,849 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2018-07-24 10:44:21,849 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-24 10:44:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2018-07-24 10:44:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-24 10:44:21,850 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:21,851 INFO L353 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:21,851 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1702444785, now seen corresponding path program 2 times [2018-07-24 10:44:21,851 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:21,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:21,852 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:44:21,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:21,852 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:21,986 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:21,986 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:44:21,994 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:21,994 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:22,013 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:22,014 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:22,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:22,132 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:22,132 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:22,199 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:22,199 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:44:22,214 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:44:22,214 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:44:22,310 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:44:22,310 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:22,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:22,319 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:44:22,342 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:22,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 11 [2018-07-24 10:44:22,342 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:22,342 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 10:44:22,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 10:44:22,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-07-24 10:44:22,343 INFO L87 Difference]: Start difference. First operand 148 states and 178 transitions. Second operand 10 states. [2018-07-24 10:44:22,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:22,774 INFO L93 Difference]: Finished difference Result 276 states and 331 transitions. [2018-07-24 10:44:22,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 10:44:22,775 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2018-07-24 10:44:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:22,778 INFO L225 Difference]: With dead ends: 276 [2018-07-24 10:44:22,778 INFO L226 Difference]: Without dead ends: 253 [2018-07-24 10:44:22,778 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 165 SyntacticMatches, 8 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2018-07-24 10:44:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-07-24 10:44:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 194. [2018-07-24 10:44:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-07-24 10:44:22,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 234 transitions. [2018-07-24 10:44:22,796 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 234 transitions. Word has length 44 [2018-07-24 10:44:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:22,797 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 234 transitions. [2018-07-24 10:44:22,797 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 10:44:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 234 transitions. [2018-07-24 10:44:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-24 10:44:22,798 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:22,798 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2018-07-24 10:44:22,799 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:22,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1816608070, now seen corresponding path program 1 times [2018-07-24 10:44:22,799 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:22,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:22,800 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:44:22,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:22,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:23,066 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 10:44:23,377 WARN L169 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 10 [2018-07-24 10:44:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:23,501 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:23,501 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:44:23,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:23,513 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:23,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:23,586 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 [2018-07-24 10:44:23,586 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:23,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:23,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:10, output treesize:5 [2018-07-24 10:44:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:23,620 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:23,676 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-07-24 10:44:23,677 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:23,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:23,683 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:15 [2018-07-24 10:44:23,902 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:23,921 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:23,922 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:44:23,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:23,938 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:44:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:23,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:24,118 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 [2018-07-24 10:44:24,118 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:24,119 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:24,119 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-07-24 10:44:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:24,172 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:24,204 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-07-24 10:44:24,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:24,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:44:24,208 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:8, output treesize:7 [2018-07-24 10:44:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 10:44:24,252 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:24,253 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10, 10, 10] total 29 [2018-07-24 10:44:24,253 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:24,253 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 10:44:24,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 10:44:24,253 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2018-07-24 10:44:24,254 INFO L87 Difference]: Start difference. First operand 194 states and 234 transitions. Second operand 15 states. [2018-07-24 10:44:25,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:44:25,156 INFO L93 Difference]: Finished difference Result 467 states and 572 transitions. [2018-07-24 10:44:25,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 10:44:25,157 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 49 [2018-07-24 10:44:25,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:44:25,160 INFO L225 Difference]: With dead ends: 467 [2018-07-24 10:44:25,160 INFO L226 Difference]: Without dead ends: 465 [2018-07-24 10:44:25,161 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 178 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=189, Invalid=1143, Unknown=0, NotChecked=0, Total=1332 [2018-07-24 10:44:25,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2018-07-24 10:44:25,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 334. [2018-07-24 10:44:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-07-24 10:44:25,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 408 transitions. [2018-07-24 10:44:25,198 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 408 transitions. Word has length 49 [2018-07-24 10:44:25,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:44:25,198 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 408 transitions. [2018-07-24 10:44:25,198 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 10:44:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 408 transitions. [2018-07-24 10:44:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-24 10:44:25,201 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:44:25,201 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1] [2018-07-24 10:44:25,201 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:44:25,201 INFO L82 PathProgramCache]: Analyzing trace with hash -642013880, now seen corresponding path program 3 times [2018-07-24 10:44:25,201 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:44:25,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:25,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:44:25,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:44:25,202 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:44:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:44:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:26,016 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:26,016 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:44:26,024 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-24 10:44:26,024 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-07-24 10:44:26,058 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-24 10:44:26,058 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:26,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:26,064 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:44:26,072 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:26,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:44:26,077 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:26,079 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:26,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:44:26,084 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:44:26,092 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:44:26,100 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:26,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:26,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:26,152 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:26,168 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:26,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:26,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:26,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:26,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:26,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:26,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:26,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:44:26,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:44:26,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:44:26,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:44:26,292 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,362 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,408 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,453 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,500 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,547 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,595 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,642 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,687 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,733 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,779 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,825 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,871 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,918 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:26,965 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,010 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,054 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,101 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,148 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,195 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,252 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 1 variables, input treesize:70, output treesize:107 [2018-07-24 10:44:27,339 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 [2018-07-24 10:44:27,339 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,392 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:110, output treesize:109 [2018-07-24 10:44:27,669 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:27,671 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:27,672 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 25 [2018-07-24 10:44:27,672 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,733 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:27,733 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:116 [2018-07-24 10:44:27,875 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:28,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 191 disjoint index pairs (out of 210 index pairs), introduced 0 new quantified variables, introduced 19 case distinctions, treesize of input 115 treesize of output 164 [2018-07-24 10:44:28,017 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 19 [2018-07-24 10:44:28,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 32 xjuncts. [2018-07-24 10:44:28,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-07-24 10:44:28,608 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:126, output treesize:510 [2018-07-24 10:44:29,007 WARN L169 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2018-07-24 10:44:29,056 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:29,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 100 [2018-07-24 10:44:29,058 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:29,497 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:29,498 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 85 treesize of output 83 [2018-07-24 10:44:29,499 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:29,857 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:29,858 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 77 treesize of output 77 [2018-07-24 10:44:29,859 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:30,134 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:30,135 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 76 [2018-07-24 10:44:30,136 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:30,632 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:30,633 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 80 [2018-07-24 10:44:30,633 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:30,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:44:30,871 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 7 variables, input treesize:531, output treesize:365 [2018-07-24 10:44:31,160 WARN L169 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-07-24 10:44:40,605 WARN L169 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2018-07-24 10:44:41,031 WARN L169 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85 [2018-07-24 10:44:41,225 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-07-24 10:44:41,398 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-07-24 10:44:41,700 WARN L169 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-07-24 10:44:41,886 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-07-24 10:44:42,098 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:42,098 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:42,743 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2018-07-24 10:44:42,749 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,758 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2018-07-24 10:44:42,796 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,797 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 23 treesize of output 12 [2018-07-24 10:44:42,798 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:42,800 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,801 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,802 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,802 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:42,809 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2018-07-24 10:44:42,810 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-24 10:44:43,053 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2018-07-24 10:44:43,054 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-07-24 10:44:43,055 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 6 [2018-07-24 10:44:43,056 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:43,165 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:43,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:43,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-07-24 10:44:43,219 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:33, output treesize:45 [2018-07-24 10:44:43,315 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:43,335 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:44:43,335 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:44:43,351 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-24 10:44:43,351 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-07-24 10:44:43,723 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-24 10:44:43,723 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:44:43,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:44:43,738 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:44:43,776 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:43,777 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:44:43,781 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:43,782 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:43,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:44:43,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:44:43,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:44:43,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:43,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:43,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:43,847 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:43,851 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:43,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:43,876 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:43,881 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:43,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:43,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:43,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:43,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:44:43,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:44:43,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:44:43,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:44:43,959 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,022 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,075 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,128 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,227 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,283 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,357 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,418 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,483 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,545 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,605 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,667 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,729 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,781 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,835 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,889 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,947 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:44,997 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,051 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,172 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:44:45,175 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:45,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:44:45,179 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:45,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:44:45,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:44:45,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:44:45,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:44:45,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:44:45,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:44:45,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:44:45,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:44:45,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:44:45,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:44:45,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:44:45,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:44:45,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:44:45,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:44:45,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:44:45,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:44:45,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:44:45,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:44:45,282 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,340 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,389 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,441 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,494 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,544 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,592 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,640 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,690 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,742 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,793 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,844 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,892 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,938 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:45,989 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,037 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,084 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,135 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,187 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,232 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:46,377 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:130, output treesize:204 [2018-07-24 10:44:46,603 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-24 10:44:46,635 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 [2018-07-24 10:44:46,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:47,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:47,667 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:206 [2018-07-24 10:44:47,972 WARN L169 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-07-24 10:44:48,215 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:44:48,477 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:44:48,484 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:48,484 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:48,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 25 [2018-07-24 10:44:48,486 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:48,638 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:48,639 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:217, output treesize:216 [2018-07-24 10:44:48,898 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2018-07-24 10:44:49,246 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:44:49,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 11 [2018-07-24 10:44:49,257 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:49,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:49,325 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:223, output treesize:119 [2018-07-24 10:44:49,505 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:44:49,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 26 [2018-07-24 10:44:49,507 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:49,592 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:44:49,592 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:122, output treesize:121 [2018-07-24 10:44:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:50,158 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:44:50,646 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2018-07-24 10:44:50,649 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,657 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 32 [2018-07-24 10:44:50,683 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,683 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,685 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,686 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,692 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2018-07-24 10:44:50,693 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-07-24 10:44:50,695 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,696 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:44:50,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 23 treesize of output 12 [2018-07-24 10:44:50,696 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:50,724 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 6 [2018-07-24 10:44:50,725 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-24 10:44:50,733 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2018-07-24 10:44:50,734 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-24 10:44:50,747 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:50,753 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:50,759 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:44:50,760 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:18, output treesize:16 [2018-07-24 10:44:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:44:50,827 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:44:50,827 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19, 18, 17] total 71 [2018-07-24 10:44:50,827 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:44:50,827 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-24 10:44:50,828 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-24 10:44:50,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=662, Invalid=4308, Unknown=0, NotChecked=0, Total=4970 [2018-07-24 10:44:50,829 INFO L87 Difference]: Start difference. First operand 334 states and 408 transitions. Second operand 37 states. [2018-07-24 10:44:51,076 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2018-07-24 10:44:51,282 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2018-07-24 10:44:51,513 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2018-07-24 10:44:51,732 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2018-07-24 10:44:52,040 WARN L169 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2018-07-24 10:44:52,283 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2018-07-24 10:44:52,574 WARN L169 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2018-07-24 10:44:52,893 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2018-07-24 10:44:53,186 WARN L169 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2018-07-24 10:44:53,495 WARN L169 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2018-07-24 10:44:53,753 WARN L169 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2018-07-24 10:44:54,267 WARN L169 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 90 [2018-07-24 10:44:54,537 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2018-07-24 10:44:55,145 WARN L169 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 93 [2018-07-24 10:44:55,755 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 134 [2018-07-24 10:44:56,024 WARN L169 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2018-07-24 10:44:56,297 WARN L169 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2018-07-24 10:44:57,071 WARN L169 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 125 [2018-07-24 10:44:58,826 WARN L169 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 216 DAG size of output: 154 [2018-07-24 10:44:59,988 WARN L169 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 152 DAG size of output: 137 [2018-07-24 10:45:00,323 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2018-07-24 10:45:01,076 WARN L169 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 121 [2018-07-24 10:45:01,941 WARN L169 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 143 [2018-07-24 10:45:02,249 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2018-07-24 10:45:02,855 WARN L169 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2018-07-24 10:45:03,140 WARN L169 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2018-07-24 10:45:03,404 WARN L169 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-07-24 10:45:04,225 WARN L169 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 125 [2018-07-24 10:45:04,520 WARN L169 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2018-07-24 10:45:05,407 WARN L169 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 146 [2018-07-24 10:45:06,529 WARN L169 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 140 [2018-07-24 10:45:07,032 WARN L169 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2018-07-24 10:45:07,313 WARN L169 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-07-24 10:45:07,544 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2018-07-24 10:45:08,326 WARN L169 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 127 [2018-07-24 10:45:08,685 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2018-07-24 10:45:09,248 WARN L169 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 95 [2018-07-24 10:45:09,531 WARN L169 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2018-07-24 10:45:09,790 WARN L169 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2018-07-24 10:45:10,598 WARN L169 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 120 [2018-07-24 10:45:11,080 WARN L169 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2018-07-24 10:45:11,331 WARN L169 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2018-07-24 10:45:12,138 WARN L169 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 122 [2018-07-24 10:45:12,441 WARN L169 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2018-07-24 10:45:13,254 WARN L169 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 120 [2018-07-24 10:45:13,543 WARN L169 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2018-07-24 10:45:13,793 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-07-24 10:45:14,536 WARN L169 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 117 [2018-07-24 10:45:15,033 WARN L169 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2018-07-24 10:45:15,464 WARN L169 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2018-07-24 10:45:15,660 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2018-07-24 10:45:16,602 WARN L169 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 120 [2018-07-24 10:45:16,902 WARN L169 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2018-07-24 10:45:17,581 WARN L169 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 114 [2018-07-24 10:45:18,069 WARN L169 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2018-07-24 10:45:18,308 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2018-07-24 10:45:19,283 WARN L169 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 126 [2018-07-24 10:45:19,667 WARN L169 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 63 [2018-07-24 10:45:19,897 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2018-07-24 10:45:20,685 WARN L169 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 116 [2018-07-24 10:45:21,283 WARN L169 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 66 [2018-07-24 10:45:21,537 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2018-07-24 10:45:22,044 WARN L169 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 88 [2018-07-24 10:45:22,772 WARN L169 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 122 [2018-07-24 10:45:23,342 WARN L169 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 84 [2018-07-24 10:45:23,657 WARN L169 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 90 [2018-07-24 10:45:23,917 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2018-07-24 10:45:24,443 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 110 [2018-07-24 10:45:24,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:45:24,448 INFO L93 Difference]: Finished difference Result 512 states and 611 transitions. [2018-07-24 10:45:24,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-24 10:45:24,449 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 48 [2018-07-24 10:45:24,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:45:24,451 INFO L225 Difference]: With dead ends: 512 [2018-07-24 10:45:24,451 INFO L226 Difference]: Without dead ends: 416 [2018-07-24 10:45:24,458 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 139 SyntacticMatches, 6 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6022 ImplicationChecksByTransitivity, 39.2s TimeCoverageRelationStatistics Valid=3087, Invalid=16653, Unknown=0, NotChecked=0, Total=19740 [2018-07-24 10:45:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-07-24 10:45:24,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 357. [2018-07-24 10:45:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2018-07-24 10:45:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 435 transitions. [2018-07-24 10:45:24,499 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 435 transitions. Word has length 48 [2018-07-24 10:45:24,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:45:24,499 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 435 transitions. [2018-07-24 10:45:24,499 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-24 10:45:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 435 transitions. [2018-07-24 10:45:24,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-24 10:45:24,501 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:45:24,501 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 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, 1] [2018-07-24 10:45:24,501 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:45:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1721828174, now seen corresponding path program 3 times [2018-07-24 10:45:24,501 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:45:24,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:24,502 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:45:24,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:24,502 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:45:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:45:24,707 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:45:24,707 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 10:45:24,707 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:45:24,708 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:45:24,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:45:24,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:45:24,708 INFO L87 Difference]: Start difference. First operand 357 states and 435 transitions. Second operand 5 states. [2018-07-24 10:45:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:45:24,811 INFO L93 Difference]: Finished difference Result 415 states and 502 transitions. [2018-07-24 10:45:24,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 10:45:24,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-07-24 10:45:24,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:45:24,814 INFO L225 Difference]: With dead ends: 415 [2018-07-24 10:45:24,814 INFO L226 Difference]: Without dead ends: 272 [2018-07-24 10:45:24,814 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:45:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-07-24 10:45:24,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2018-07-24 10:45:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2018-07-24 10:45:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 323 transitions. [2018-07-24 10:45:24,852 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 323 transitions. Word has length 49 [2018-07-24 10:45:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:45:24,853 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 323 transitions. [2018-07-24 10:45:24,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:45:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 323 transitions. [2018-07-24 10:45:24,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-24 10:45:24,854 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:45:24,854 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 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] [2018-07-24 10:45:24,854 INFO L414 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:45:24,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1871539248, now seen corresponding path program 4 times [2018-07-24 10:45:24,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:45:24,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:24,855 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:45:24,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:24,856 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:45:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:25,636 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:25,636 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:45:25,645 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-24 10:45:25,645 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-24 10:45:25,659 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-24 10:45:25,659 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:45:25,660 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:25,695 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:25,759 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:25,759 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:45:25,775 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-24 10:45:25,776 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-24 10:45:25,815 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-24 10:45:25,816 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:45:25,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:25,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:25,869 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:25,871 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:45:25,871 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 10] total 16 [2018-07-24 10:45:25,871 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:45:25,871 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 10:45:25,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 10:45:25,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2018-07-24 10:45:25,872 INFO L87 Difference]: Start difference. First operand 271 states and 323 transitions. Second operand 13 states. [2018-07-24 10:45:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:45:27,051 INFO L93 Difference]: Finished difference Result 644 states and 777 transitions. [2018-07-24 10:45:27,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 10:45:27,051 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 49 [2018-07-24 10:45:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:45:27,055 INFO L225 Difference]: With dead ends: 644 [2018-07-24 10:45:27,056 INFO L226 Difference]: Without dead ends: 596 [2018-07-24 10:45:27,057 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 180 SyntacticMatches, 10 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2018-07-24 10:45:27,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2018-07-24 10:45:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 312. [2018-07-24 10:45:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-07-24 10:45:27,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 373 transitions. [2018-07-24 10:45:27,098 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 373 transitions. Word has length 49 [2018-07-24 10:45:27,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:45:27,098 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 373 transitions. [2018-07-24 10:45:27,098 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 10:45:27,098 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 373 transitions. [2018-07-24 10:45:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-24 10:45:27,099 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:45:27,100 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:45:27,100 INFO L414 AbstractCegarLoop]: === Iteration 15 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:45:27,100 INFO L82 PathProgramCache]: Analyzing trace with hash -397189970, now seen corresponding path program 1 times [2018-07-24 10:45:27,100 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:45:27,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:27,101 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:45:27,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:27,101 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:45:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-07-24 10:45:27,259 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:45:27,259 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 10:45:27,259 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:45:27,259 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 10:45:27,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 10:45:27,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:45:27,260 INFO L87 Difference]: Start difference. First operand 312 states and 373 transitions. Second operand 5 states. [2018-07-24 10:45:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:45:27,322 INFO L93 Difference]: Finished difference Result 494 states and 595 transitions. [2018-07-24 10:45:27,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 10:45:27,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-07-24 10:45:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:45:27,324 INFO L225 Difference]: With dead ends: 494 [2018-07-24 10:45:27,324 INFO L226 Difference]: Without dead ends: 346 [2018-07-24 10:45:27,325 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-24 10:45:27,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-07-24 10:45:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 312. [2018-07-24 10:45:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-07-24 10:45:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 370 transitions. [2018-07-24 10:45:27,364 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 370 transitions. Word has length 49 [2018-07-24 10:45:27,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:45:27,364 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 370 transitions. [2018-07-24 10:45:27,365 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 10:45:27,365 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 370 transitions. [2018-07-24 10:45:27,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-24 10:45:27,366 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:45:27,366 INFO L353 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:45:27,366 INFO L414 AbstractCegarLoop]: === Iteration 16 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:45:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1493449695, now seen corresponding path program 1 times [2018-07-24 10:45:27,366 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:45:27,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:27,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:45:27,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:27,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:45:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:27,497 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:27,497 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:45:27,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:45:27,505 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:45:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:27,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:27,560 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:27,560 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:27,618 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:27,618 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:45:27,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:45:27,633 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:45:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:27,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:27,684 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:27,758 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:45:27,758 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 14 [2018-07-24 10:45:27,758 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:45:27,759 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 10:45:27,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 10:45:27,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-07-24 10:45:27,759 INFO L87 Difference]: Start difference. First operand 312 states and 370 transitions. Second operand 13 states. [2018-07-24 10:45:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:45:28,206 INFO L93 Difference]: Finished difference Result 650 states and 783 transitions. [2018-07-24 10:45:28,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 10:45:28,206 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2018-07-24 10:45:28,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:45:28,209 INFO L225 Difference]: With dead ends: 650 [2018-07-24 10:45:28,210 INFO L226 Difference]: Without dead ends: 615 [2018-07-24 10:45:28,210 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 192 SyntacticMatches, 12 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2018-07-24 10:45:28,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-07-24 10:45:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 398. [2018-07-24 10:45:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2018-07-24 10:45:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 482 transitions. [2018-07-24 10:45:28,275 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 482 transitions. Word has length 52 [2018-07-24 10:45:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:45:28,275 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 482 transitions. [2018-07-24 10:45:28,276 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 10:45:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 482 transitions. [2018-07-24 10:45:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-24 10:45:28,277 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:45:28,277 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1] [2018-07-24 10:45:28,277 INFO L414 AbstractCegarLoop]: === Iteration 17 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:45:28,278 INFO L82 PathProgramCache]: Analyzing trace with hash -164370249, now seen corresponding path program 2 times [2018-07-24 10:45:28,278 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:45:28,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:28,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:45:28,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:45:28,279 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:45:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:45:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-24 10:45:28,543 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:28,544 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:45:28,562 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:45:28,562 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:45:28,583 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:45:28,583 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:45:28,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:28,592 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:45:28,600 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:28,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:45:28,611 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:28,613 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:28,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:45:28,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:45:28,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:45:28,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:45:28,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:45:28,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:45:28,679 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:45:28,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:45:28,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:45:28,722 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:45:28,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:45:28,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:45:28,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:45:28,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:45:28,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:45:28,770 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:45:28,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:45:28,787 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:45:28,788 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:28,903 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,007 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,114 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,217 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,325 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,437 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,540 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,650 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,756 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,868 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:29,980 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,088 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,192 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,296 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,412 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,523 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,637 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,742 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:30,992 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:45:31,000 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 68 [2018-07-24 10:45:31,005 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 70 [2018-07-24 10:45:31,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 72 [2018-07-24 10:45:31,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 74 [2018-07-24 10:45:31,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2018-07-24 10:45:31,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 78 [2018-07-24 10:45:31,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 80 [2018-07-24 10:45:31,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 82 [2018-07-24 10:45:31,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:45:31,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:45:31,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:45:31,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:45:31,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:45:31,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:45:31,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:45:31,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:45:31,141 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:45:31,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:45:31,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 101 [2018-07-24 10:45:31,160 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,263 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,364 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,469 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,569 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,678 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,780 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,879 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:31,988 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,086 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,185 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,285 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,389 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,497 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,600 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,697 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,794 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,896 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:32,999 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,099 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,343 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:45:33,347 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:33,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:45:33,352 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:33,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:45:33,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:45:33,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:45:33,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:45:33,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:45:33,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:45:33,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:45:33,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:45:33,411 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:45:33,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:45:33,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:45:33,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:45:33,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:45:33,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:45:33,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:45:33,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:45:33,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:45:33,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:45:33,491 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,551 INFO L267 ElimStorePlain]: Start of recursive call 60: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,599 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,649 INFO L267 ElimStorePlain]: Start of recursive call 58: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,702 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,754 INFO L267 ElimStorePlain]: Start of recursive call 56: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,805 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,857 INFO L267 ElimStorePlain]: Start of recursive call 54: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,908 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:33,958 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,011 INFO L267 ElimStorePlain]: Start of recursive call 51: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,066 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,119 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,169 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,220 INFO L267 ElimStorePlain]: Start of recursive call 47: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,274 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,355 INFO L267 ElimStorePlain]: Start of recursive call 45: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,406 INFO L267 ElimStorePlain]: Start of recursive call 44: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,458 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,511 INFO L267 ElimStorePlain]: Start of recursive call 42: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:34,748 INFO L202 ElimStorePlain]: Needed 61 recursive calls to eliminate 3 variables, input treesize:193, output treesize:304 [2018-07-24 10:45:35,012 WARN L169 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2018-07-24 10:45:35,020 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 [2018-07-24 10:45:35,020 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:35,261 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:35,261 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:310, output treesize:309 [2018-07-24 10:45:35,550 WARN L169 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-24 10:45:35,879 WARN L169 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-24 10:45:35,942 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 12 treesize of output 11 [2018-07-24 10:45:35,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:36,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:36,189 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:312, output treesize:306 [2018-07-24 10:45:36,468 WARN L169 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2018-07-24 10:45:36,763 WARN L169 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-24 10:45:37,065 WARN L169 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2018-07-24 10:45:37,074 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:37,075 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:37,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 25 [2018-07-24 10:45:37,076 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:37,330 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:37,330 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:314, output treesize:313 [2018-07-24 10:45:37,638 WARN L169 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2018-07-24 10:45:37,971 WARN L169 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-07-24 10:45:37,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 190 disjoint index pairs (out of 210 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 90 [2018-07-24 10:45:37,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:38,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 190 disjoint index pairs (out of 210 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2018-07-24 10:45:38,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:38,343 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:38,343 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:328, output treesize:122 [2018-07-24 10:45:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:38,507 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:39,781 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2018-07-24 10:45:39,784 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:45:39,786 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 37 [2018-07-24 10:45:39,804 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:45:39,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 36 [2018-07-24 10:45:39,824 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-07-24 10:45:39,826 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:45:39,828 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 23 treesize of output 14 [2018-07-24 10:45:39,828 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:39,866 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-07-24 10:45:39,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:45:39,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:45:39,930 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:25, output treesize:63 [2018-07-24 10:45:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:45:40,020 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:45:40,020 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:45:40,037 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:45:40,037 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:45:40,140 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:45:40,140 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:45:40,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:45:40,150 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:45:40,158 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:40,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:45:40,166 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:40,169 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:40,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:45:40,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:45:40,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:45:40,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:45:40,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:45:40,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:45:40,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:45:40,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:45:40,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:45:40,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:45:40,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:45:40,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:45:40,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:45:40,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:45:40,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:45:40,352 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:45:40,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:45:40,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:45:40,395 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,513 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,567 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,621 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,687 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,749 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,809 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,866 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,926 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:40,989 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,044 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,100 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,155 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,209 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,264 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,337 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,388 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,438 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,489 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,607 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:45:41,610 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:41,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:45:41,615 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:41,615 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:45:41,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:45:41,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:45:41,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:45:41,632 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:45:41,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:45:41,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:45:41,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:45:41,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:45:41,657 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:45:41,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:45:41,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:45:41,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:45:41,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:45:41,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:45:41,688 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:45:41,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:45:41,701 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:45:41,702 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,753 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,801 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,849 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:41,895 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,017 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,066 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,117 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,165 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,215 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,263 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,314 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,361 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,411 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,462 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,510 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,555 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,612 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,660 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,709 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:42,839 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:133, output treesize:207 [2018-07-24 10:45:43,021 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-07-24 10:45:43,026 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 [2018-07-24 10:45:43,026 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:43,157 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:43,157 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:210, output treesize:209 [2018-07-24 10:45:43,348 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:45:43,356 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 12 treesize of output 15 [2018-07-24 10:45:43,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:43,492 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:43,492 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:216, output treesize:206 [2018-07-24 10:45:43,678 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-07-24 10:45:43,868 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:45:44,064 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:45:44,069 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:44,070 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:44,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 25 [2018-07-24 10:45:44,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,212 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:214, output treesize:213 [2018-07-24 10:45:44,421 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-24 10:45:44,634 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:45:44,642 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 11 [2018-07-24 10:45:44,642 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,700 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:220, output treesize:116 [2018-07-24 10:45:44,810 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:45:44,810 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 19 treesize of output 17 [2018-07-24 10:45:44,811 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:45:44,868 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:111 [2018-07-24 10:45:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:45:45,315 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:45:50,991 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-07-24 10:45:51,014 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2018-07-24 10:45:51,046 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:45:51,052 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:45:51,069 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 26 [2018-07-24 10:45:51,070 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2018-07-24 10:45:51,137 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 1 case distinctions, treesize of input 19 treesize of output 15 [2018-07-24 10:45:51,137 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-24 10:45:51,249 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-07-24 10:45:51,250 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-07-24 10:45:51,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 13 treesize of output 6 [2018-07-24 10:45:51,252 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-24 10:45:51,287 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:45:51,306 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:45:51,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:45:51,327 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:20, output treesize:13 [2018-07-24 10:45:51,382 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 10:45:51,384 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:45:51,384 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 16, 13] total 55 [2018-07-24 10:45:51,384 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:45:51,384 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-24 10:45:51,384 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-24 10:45:51,385 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=2698, Unknown=2, NotChecked=0, Total=2970 [2018-07-24 10:45:51,385 INFO L87 Difference]: Start difference. First operand 398 states and 482 transitions. Second operand 21 states. [2018-07-24 10:45:52,116 WARN L169 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2018-07-24 10:45:52,717 WARN L169 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 154 [2018-07-24 10:45:53,318 WARN L169 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 157 [2018-07-24 10:45:53,910 WARN L169 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 154 [2018-07-24 10:45:54,486 WARN L169 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2018-07-24 10:45:55,071 WARN L169 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 152 [2018-07-24 10:45:55,416 WARN L169 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-07-24 10:45:56,033 WARN L169 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 150 [2018-07-24 10:45:56,619 WARN L169 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-07-24 10:45:56,932 WARN L169 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2018-07-24 10:45:57,588 WARN L169 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 157 [2018-07-24 10:45:58,187 WARN L169 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 154 [2018-07-24 10:45:58,824 WARN L169 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 160 [2018-07-24 10:45:59,151 WARN L169 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-07-24 10:45:59,647 WARN L169 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2018-07-24 10:46:00,178 WARN L169 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2018-07-24 10:46:00,945 WARN L169 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 155 [2018-07-24 10:46:01,604 WARN L169 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 152 [2018-07-24 10:46:02,636 WARN L169 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 158 [2018-07-24 10:46:03,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:46:03,603 INFO L93 Difference]: Finished difference Result 1089 states and 1336 transitions. [2018-07-24 10:46:03,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-24 10:46:03,604 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 53 [2018-07-24 10:46:03,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:46:03,609 INFO L225 Difference]: With dead ends: 1089 [2018-07-24 10:46:03,609 INFO L226 Difference]: Without dead ends: 1018 [2018-07-24 10:46:03,612 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1774 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=819, Invalid=5185, Unknown=2, NotChecked=0, Total=6006 [2018-07-24 10:46:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1018 states. [2018-07-24 10:46:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1018 to 606. [2018-07-24 10:46:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2018-07-24 10:46:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 757 transitions. [2018-07-24 10:46:03,726 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 757 transitions. Word has length 53 [2018-07-24 10:46:03,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:46:03,726 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 757 transitions. [2018-07-24 10:46:03,726 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-24 10:46:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 757 transitions. [2018-07-24 10:46:03,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-24 10:46:03,727 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:46:03,727 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:46:03,727 INFO L414 AbstractCegarLoop]: === Iteration 18 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:46:03,728 INFO L82 PathProgramCache]: Analyzing trace with hash 258331577, now seen corresponding path program 1 times [2018-07-24 10:46:03,728 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:46:03,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:03,728 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:46:03,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:03,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:46:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:04,011 WARN L169 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-07-24 10:46:04,313 WARN L169 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2018-07-24 10:46:04,628 WARN L169 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 15 [2018-07-24 10:46:04,908 WARN L169 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-07-24 10:46:05,271 WARN L169 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-07-24 10:46:05,524 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-07-24 10:46:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-24 10:46:05,767 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:05,767 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:46:05,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:46:05,777 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:46:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:05,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:05,800 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:05,807 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:05,808 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:05,811 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:05,813 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:05,814 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:46:05,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:05,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:05,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:05,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:05,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:05,844 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:05,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:05,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:05,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:05,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:05,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:05,897 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:05,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:05,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:46:05,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:46:05,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:46:05,959 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:46:05,960 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,111 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,163 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,219 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,288 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,350 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,408 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,467 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,519 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,581 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,631 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,680 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,733 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,783 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,837 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,889 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:06,954 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,005 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,060 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,113 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,193 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:07,196 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:07,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:07,201 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:07,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:46:07,205 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:46:07,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:46:07,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:46:07,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:07,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:07,227 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:07,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:07,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:07,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:07,247 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:07,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:07,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:07,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:07,276 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:07,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:07,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:07,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:46:07,295 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,346 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,393 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,442 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,491 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,537 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,582 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,630 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,677 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,727 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,774 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,821 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,868 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,917 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:07,964 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,011 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,057 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,104 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,171 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,217 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,347 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:130, output treesize:204 [2018-07-24 10:46:08,497 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-24 10:46:08,502 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 [2018-07-24 10:46:08,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:08,631 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:210, output treesize:209 [2018-07-24 10:46:08,796 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:08,960 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:08,969 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 12 treesize of output 11 [2018-07-24 10:46:08,969 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:212, output treesize:206 [2018-07-24 10:46:09,288 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-07-24 10:46:09,458 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:09,465 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 3 [2018-07-24 10:46:09,466 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,469 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:111, output treesize:9 [2018-07-24 10:46:09,490 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:09,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-07-24 10:46:09,491 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,496 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-07-24 10:46:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:09,614 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:09,757 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 22 [2018-07-24 10:46:09,759 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:09,761 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2018-07-24 10:46:09,772 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:09,774 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:09,777 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:09,781 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2018-07-24 10:46:09,782 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:09,784 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:09,785 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 21 treesize of output 12 [2018-07-24 10:46:09,785 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:09,803 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:09,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:09,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:09,827 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:18, output treesize:19 [2018-07-24 10:46:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:09,883 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:09,883 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:46:09,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:46:09,898 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 10:46:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:09,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:09,948 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:09,955 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:09,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:09,961 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:09,962 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:09,963 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:46:09,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:09,976 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:09,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:09,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:09,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:09,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:10,003 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:10,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:10,026 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:10,033 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:10,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:10,049 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:10,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:10,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:46:10,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:46:10,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:46:10,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:46:10,105 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,167 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,217 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,271 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,322 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,375 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,428 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,481 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,535 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,585 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,641 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,696 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,750 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,799 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,848 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,904 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:10,960 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,018 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,072 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,125 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,197 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:11,201 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:11,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:11,206 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:11,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:46:11,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:46:11,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:46:11,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:46:11,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:11,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:11,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:11,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:11,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:11,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:11,312 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:11,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:11,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:11,335 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:11,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:11,349 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:11,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:11,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:46:11,365 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,431 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,497 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,553 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,614 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,675 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,726 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,779 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,828 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,878 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,930 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:11,982 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,034 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,086 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,136 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,189 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,241 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,294 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,348 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,400 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,535 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,536 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:133, output treesize:207 [2018-07-24 10:46:12,715 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2018-07-24 10:46:12,740 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 [2018-07-24 10:46:12,740 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,891 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:12,892 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:210, output treesize:209 [2018-07-24 10:46:13,092 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:13,104 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 12 treesize of output 15 [2018-07-24 10:46:13,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,249 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:216, output treesize:206 [2018-07-24 10:46:13,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 3 [2018-07-24 10:46:13,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,314 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,314 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:211, output treesize:109 [2018-07-24 10:46:13,416 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:13,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 17 [2018-07-24 10:46:13,416 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,475 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:13,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:112, output treesize:111 [2018-07-24 10:46:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 10:46:13,848 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:18,745 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2018-07-24 10:46:18,757 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2018-07-24 10:46:18,786 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 16 [2018-07-24 10:46:18,787 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:18,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 17 treesize of output 11 [2018-07-24 10:46:18,789 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:18,824 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:18,826 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:18,837 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 26 [2018-07-24 10:46:18,838 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2018-07-24 10:46:18,845 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 1 case distinctions, treesize of input 19 treesize of output 15 [2018-07-24 10:46:18,845 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:18,881 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:46:18,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:18,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:18,924 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:20, output treesize:13 [2018-07-24 10:46:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:18,967 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:46:18,967 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12, 14, 11] total 41 [2018-07-24 10:46:18,967 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:46:18,967 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-24 10:46:18,967 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-24 10:46:18,968 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1436, Unknown=2, NotChecked=0, Total=1640 [2018-07-24 10:46:18,968 INFO L87 Difference]: Start difference. First operand 606 states and 757 transitions. Second operand 27 states. [2018-07-24 10:46:19,449 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2018-07-24 10:46:19,765 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-07-24 10:46:20,131 WARN L169 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2018-07-24 10:46:20,535 WARN L169 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2018-07-24 10:46:20,898 WARN L169 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2018-07-24 10:46:21,241 WARN L169 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2018-07-24 10:46:21,629 WARN L169 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2018-07-24 10:46:21,839 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-07-24 10:46:22,155 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-24 10:46:22,327 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-07-24 10:46:22,684 WARN L169 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2018-07-24 10:46:22,907 WARN L169 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-07-24 10:46:23,085 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2018-07-24 10:46:23,487 WARN L169 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 118 [2018-07-24 10:46:23,672 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:24,016 WARN L169 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 115 [2018-07-24 10:46:24,258 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-24 10:46:24,704 WARN L169 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2018-07-24 10:46:25,059 WARN L169 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2018-07-24 10:46:25,427 WARN L169 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2018-07-24 10:46:25,885 WARN L169 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2018-07-24 10:46:26,218 WARN L169 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2018-07-24 10:46:26,601 WARN L169 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2018-07-24 10:46:27,052 WARN L169 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2018-07-24 10:46:27,378 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112 [2018-07-24 10:46:27,748 WARN L169 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2018-07-24 10:46:28,160 WARN L169 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 117 [2018-07-24 10:46:28,522 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2018-07-24 10:46:28,815 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:28,999 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:29,253 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-24 10:46:29,438 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-07-24 10:46:29,843 WARN L169 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116 [2018-07-24 10:46:30,039 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-24 10:46:30,398 WARN L169 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 113 [2018-07-24 10:46:30,643 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:31,539 WARN L169 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2018-07-24 10:46:31,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:46:31,669 INFO L93 Difference]: Finished difference Result 1359 states and 1696 transitions. [2018-07-24 10:46:31,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-24 10:46:31,669 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 53 [2018-07-24 10:46:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:46:31,675 INFO L225 Difference]: With dead ends: 1359 [2018-07-24 10:46:31,675 INFO L226 Difference]: Without dead ends: 1357 [2018-07-24 10:46:31,677 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1787 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=1082, Invalid=5078, Unknown=2, NotChecked=0, Total=6162 [2018-07-24 10:46:31,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2018-07-24 10:46:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 676. [2018-07-24 10:46:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 676 states. [2018-07-24 10:46:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 845 transitions. [2018-07-24 10:46:31,852 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 845 transitions. Word has length 53 [2018-07-24 10:46:31,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:46:31,852 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 845 transitions. [2018-07-24 10:46:31,852 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-24 10:46:31,852 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 845 transitions. [2018-07-24 10:46:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-24 10:46:31,854 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:46:31,854 INFO L353 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 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, 1, 1] [2018-07-24 10:46:31,854 INFO L414 AbstractCegarLoop]: === Iteration 19 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:46:31,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1158432483, now seen corresponding path program 5 times [2018-07-24 10:46:31,855 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:46:31,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:31,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:46:31,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:31,856 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:46:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:32,226 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:32,227 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:46:32,236 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-24 10:46:32,236 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:46:32,251 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-07-24 10:46:32,252 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:32,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:32,325 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:32,370 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:32,390 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:32,391 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:46:32,407 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-07-24 10:46:32,407 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:46:32,458 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-07-24 10:46:32,458 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:32,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:32,467 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 18 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:32,534 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:46:32,534 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 11] total 16 [2018-07-24 10:46:32,535 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:46:32,535 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 10:46:32,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 10:46:32,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2018-07-24 10:46:32,535 INFO L87 Difference]: Start difference. First operand 676 states and 845 transitions. Second operand 15 states. [2018-07-24 10:46:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:46:33,643 INFO L93 Difference]: Finished difference Result 1642 states and 2061 transitions. [2018-07-24 10:46:33,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 10:46:33,644 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2018-07-24 10:46:33,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:46:33,651 INFO L225 Difference]: With dead ends: 1642 [2018-07-24 10:46:33,651 INFO L226 Difference]: Without dead ends: 1584 [2018-07-24 10:46:33,652 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 195 SyntacticMatches, 16 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-07-24 10:46:33,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2018-07-24 10:46:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 791. [2018-07-24 10:46:33,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2018-07-24 10:46:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 990 transitions. [2018-07-24 10:46:33,822 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 990 transitions. Word has length 54 [2018-07-24 10:46:33,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:46:33,823 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 990 transitions. [2018-07-24 10:46:33,823 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 10:46:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 990 transitions. [2018-07-24 10:46:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-24 10:46:33,825 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:46:33,825 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-07-24 10:46:33,825 INFO L414 AbstractCegarLoop]: === Iteration 20 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:46:33,826 INFO L82 PathProgramCache]: Analyzing trace with hash 77906158, now seen corresponding path program 2 times [2018-07-24 10:46:33,826 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:46:33,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:33,826 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:46:33,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:33,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:46:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:34,057 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-24 10:46:34,058 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:34,058 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:46:34,065 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:46:34,065 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:46:34,082 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:46:34,082 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:34,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-24 10:46:34,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-07-24 10:46:34,205 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:34,205 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 31 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:46:34,220 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-24 10:46:34,220 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-24 10:46:34,379 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-24 10:46:34,379 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:34,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:34,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:34,431 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:46:34,431 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 13 [2018-07-24 10:46:34,432 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:46:34,432 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 10:46:34,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 10:46:34,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-07-24 10:46:34,432 INFO L87 Difference]: Start difference. First operand 791 states and 990 transitions. Second operand 12 states. [2018-07-24 10:46:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:46:35,045 INFO L93 Difference]: Finished difference Result 1617 states and 2013 transitions. [2018-07-24 10:46:35,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 10:46:35,045 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2018-07-24 10:46:35,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:46:35,050 INFO L225 Difference]: With dead ends: 1617 [2018-07-24 10:46:35,050 INFO L226 Difference]: Without dead ends: 1321 [2018-07-24 10:46:35,051 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 214 SyntacticMatches, 10 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2018-07-24 10:46:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2018-07-24 10:46:35,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1024. [2018-07-24 10:46:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2018-07-24 10:46:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1280 transitions. [2018-07-24 10:46:35,285 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1280 transitions. Word has length 57 [2018-07-24 10:46:35,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:46:35,285 INFO L471 AbstractCegarLoop]: Abstraction has 1024 states and 1280 transitions. [2018-07-24 10:46:35,285 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-24 10:46:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1280 transitions. [2018-07-24 10:46:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-24 10:46:35,288 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:46:35,288 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 10:46:35,288 INFO L414 AbstractCegarLoop]: === Iteration 21 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:46:35,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1482348456, now seen corresponding path program 4 times [2018-07-24 10:46:35,288 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:46:35,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:35,289 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:46:35,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:46:35,289 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:46:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:46:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-24 10:46:36,353 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:36,353 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:46:36,360 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-24 10:46:36,360 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-24 10:46:36,401 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-24 10:46:36,401 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:36,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:36,407 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:36,409 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:36,410 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:36,417 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:36,418 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:36,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:46:36,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:36,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:36,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:36,433 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:36,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:36,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:36,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:36,464 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:36,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:36,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:36,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:36,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:36,490 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:36,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:46:36,504 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:46:36,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:46:36,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:46:36,516 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,574 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,624 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,675 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,729 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,781 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,833 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,886 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:36,955 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,021 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,080 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,140 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,207 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,260 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,313 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,363 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,413 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,467 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,518 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,586 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,650 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:37,654 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:37,655 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:37,660 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:37,660 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:46:37,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:46:37,669 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:46:37,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:46:37,678 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:37,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:37,689 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:37,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:37,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:37,703 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:37,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:37,715 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:37,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:37,760 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:37,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:37,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:37,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:37,839 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:46:37,840 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:37,974 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,019 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,067 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,114 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,160 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,208 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,256 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,303 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,351 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,399 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,446 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,493 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,544 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,592 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,642 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,689 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,737 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,785 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,834 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:38,957 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:130, output treesize:204 [2018-07-24 10:46:39,141 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-24 10:46:39,147 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 [2018-07-24 10:46:39,147 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:39,274 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:39,275 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:206 [2018-07-24 10:46:39,463 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2018-07-24 10:46:39,661 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2018-07-24 10:46:39,871 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:39,877 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:39,878 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:39,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-07-24 10:46:39,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:40,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-24 10:46:40,032 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:220, output treesize:219 [2018-07-24 10:46:40,259 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2018-07-24 10:46:40,473 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-07-24 10:46:40,705 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2018-07-24 10:46:40,710 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:40,713 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:40,714 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:40,715 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 21 treesize of output 34 [2018-07-24 10:46:40,715 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:40,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-24 10:46:40,885 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:229, output treesize:226 [2018-07-24 10:46:41,262 WARN L169 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 112 [2018-07-24 10:46:41,478 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:41,702 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2018-07-24 10:46:41,708 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,709 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,710 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,711 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,712 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,713 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,726 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:41,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 85 [2018-07-24 10:46:41,727 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:41,891 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:41,892 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:238, output treesize:222 [2018-07-24 10:46:42,143 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2018-07-24 10:46:42,444 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-24 10:46:42,687 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-24 10:46:42,935 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-24 10:46:42,944 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 190 disjoint index pairs (out of 210 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 97 [2018-07-24 10:46:42,945 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:43,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 190 disjoint index pairs (out of 210 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 83 [2018-07-24 10:46:43,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:43,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:43,233 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:237, output treesize:29 [2018-07-24 10:46:43,297 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-07-24 10:46:43,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:43,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:43,302 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:20 [2018-07-24 10:46:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:43,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:43,817 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 38 [2018-07-24 10:46:43,817 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:43,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:46:43,827 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:42, output treesize:48 [2018-07-24 10:46:44,690 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 71 [2018-07-24 10:46:44,697 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,707 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 71 treesize of output 70 [2018-07-24 10:46:44,827 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2018-07-24 10:46:44,829 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,831 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,833 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,835 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 87 [2018-07-24 10:46:44,952 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,952 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,954 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,955 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,955 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,957 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 58 [2018-07-24 10:46:44,963 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:44,966 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,967 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,968 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,969 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,970 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,972 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,972 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,974 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,975 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,978 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:44,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 80 [2018-07-24 10:46:44,997 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:45,089 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,091 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,092 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,093 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,096 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 68 [2018-07-24 10:46:45,109 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:45,113 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,113 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,114 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,115 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 36 [2018-07-24 10:46:45,115 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:45,163 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:45,165 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,170 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,172 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,174 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,179 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:45,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 141 [2018-07-24 10:46:46,236 WARN L169 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 350 DAG size of output: 221 [2018-07-24 10:46:46,239 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,239 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,241 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,244 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 69 [2018-07-24 10:46:46,245 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:46,247 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,253 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,254 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,256 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,262 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 100 [2018-07-24 10:46:46,284 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:46,852 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,852 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,853 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,853 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,853 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,855 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,856 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,858 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,859 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,860 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,860 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,864 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 83 [2018-07-24 10:46:46,880 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:46,890 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,891 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,891 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,892 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,892 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,892 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,893 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,893 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:46,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2018-07-24 10:46:46,894 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:47,871 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,874 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,875 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,877 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,880 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 65 [2018-07-24 10:46:47,895 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:47,898 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,899 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,899 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:47,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 44 [2018-07-24 10:46:47,900 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:48,293 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,294 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,296 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,296 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,297 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,299 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 63 [2018-07-24 10:46:48,306 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:48,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,313 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,313 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,315 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,317 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,319 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,321 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,322 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,325 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,345 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 85 [2018-07-24 10:46:48,347 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:48,710 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,712 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,713 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,714 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,715 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,716 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,717 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,720 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 73 [2018-07-24 10:46:48,728 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:48,732 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,734 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,734 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,735 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,735 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,736 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,737 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,740 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,741 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,743 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,745 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,747 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,749 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:48,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 96 [2018-07-24 10:46:48,770 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:49,072 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,073 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,076 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,077 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,078 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,080 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,085 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 58 [2018-07-24 10:46:49,086 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:49,088 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,089 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,090 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,091 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,094 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,096 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,098 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,100 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,100 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,104 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,122 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 80 [2018-07-24 10:46:49,124 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:49,349 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,350 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,351 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,352 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,353 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,356 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,360 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,361 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,363 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,364 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,367 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 94 [2018-07-24 10:46:49,392 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:49,394 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,395 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,396 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,397 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,399 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,401 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,402 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,403 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 62 [2018-07-24 10:46:49,410 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:49,631 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,633 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,635 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,635 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-07-24 10:46:49,636 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:49,639 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,641 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,643 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,644 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,646 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,649 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 77 [2018-07-24 10:46:49,668 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:49,720 INFO L267 ElimStorePlain]: Start of recursive call 9: 10 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:49,722 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,727 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,729 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,729 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,734 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,755 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 71 treesize of output 96 [2018-07-24 10:46:49,872 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-07-24 10:46:49,875 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,876 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,876 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,878 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,878 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,880 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 64 [2018-07-24 10:46:49,887 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:49,893 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,894 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,894 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,895 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,897 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,898 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,899 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,901 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,902 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,904 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:49,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 86 [2018-07-24 10:46:49,925 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 4 xjuncts. [2018-07-24 10:46:50,033 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,034 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,034 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,036 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,038 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,054 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 74 [2018-07-24 10:46:50,055 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:50,057 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,058 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,059 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 42 [2018-07-24 10:46:50,060 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:50,114 INFO L267 ElimStorePlain]: Start of recursive call 26: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:50,215 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,217 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,217 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 75 [2018-07-24 10:46:50,262 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,264 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-07-24 10:46:50,264 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:50,267 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,269 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,271 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,271 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,275 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,287 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 48 [2018-07-24 10:46:50,288 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:50,307 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:50,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,318 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 84 [2018-07-24 10:46:50,366 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,368 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,368 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 25 [2018-07-24 10:46:50,369 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:50,371 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,373 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,374 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,375 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,377 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:50,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 48 [2018-07-24 10:46:50,391 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:50,409 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:50,459 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:50,498 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:50,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:50,540 INFO L202 ElimStorePlain]: Needed 36 recursive calls to eliminate 2 variables, input treesize:82, output treesize:86 [2018-07-24 10:46:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:46:50,706 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:46:50,707 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 33 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:46:50,722 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-24 10:46:50,723 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-24 10:46:51,124 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-24 10:46:51,124 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:46:51,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:46:51,137 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:51,143 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:51,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:51,149 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:51,152 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:51,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2018-07-24 10:46:51,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:51,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:51,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:51,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:51,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:51,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:51,183 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:51,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:51,193 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:51,198 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:51,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:51,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:51,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:51,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 116 [2018-07-24 10:46:51,237 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 118 [2018-07-24 10:46:51,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 120 [2018-07-24 10:46:51,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 119 [2018-07-24 10:46:51,252 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,315 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,371 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,429 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,486 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,539 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,593 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,645 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,697 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,750 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,805 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,854 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,908 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:51,961 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,013 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,065 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,118 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,170 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,223 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,278 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,365 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 66 [2018-07-24 10:46:52,372 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:52,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 74 [2018-07-24 10:46:52,380 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:52,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 82 [2018-07-24 10:46:52,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 84 [2018-07-24 10:46:52,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 86 [2018-07-24 10:46:52,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 88 [2018-07-24 10:46:52,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 90 [2018-07-24 10:46:52,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 92 [2018-07-24 10:46:52,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 94 [2018-07-24 10:46:52,434 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2018-07-24 10:46:52,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 98 [2018-07-24 10:46:52,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 100 [2018-07-24 10:46:52,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2018-07-24 10:46:52,454 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 104 [2018-07-24 10:46:52,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 106 [2018-07-24 10:46:52,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 120 disjoint index pairs (out of 105 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 108 [2018-07-24 10:46:52,475 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 136 disjoint index pairs (out of 120 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 110 [2018-07-24 10:46:52,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 17 select indices, 17 select index equivalence classes, 153 disjoint index pairs (out of 136 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 112 [2018-07-24 10:46:52,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 18 select indices, 18 select index equivalence classes, 171 disjoint index pairs (out of 153 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2018-07-24 10:46:52,493 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 19 select indices, 19 select index equivalence classes, 190 disjoint index pairs (out of 171 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 113 [2018-07-24 10:46:52,494 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,560 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,615 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,666 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,715 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,764 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,811 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,860 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,909 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:52,954 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,003 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,052 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,098 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,148 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,199 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,247 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,293 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,343 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,393 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,444 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,572 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,572 INFO L202 ElimStorePlain]: Needed 41 recursive calls to eliminate 2 variables, input treesize:130, output treesize:204 [2018-07-24 10:46:53,822 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-07-24 10:46:53,830 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 [2018-07-24 10:46:53,830 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:53,963 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:207, output treesize:206 [2018-07-24 10:46:54,210 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:54,216 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:54,217 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:54,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 25 [2018-07-24 10:46:54,217 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:54,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:54,365 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:217, output treesize:216 [2018-07-24 10:46:54,626 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2018-07-24 10:46:54,887 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2018-07-24 10:46:55,150 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-24 10:46:55,156 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:55,157 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:55,158 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:55,159 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:55,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 52 [2018-07-24 10:46:55,160 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:55,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:55,316 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:226, output treesize:225 [2018-07-24 10:46:55,598 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2018-07-24 10:46:55,875 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2018-07-24 10:46:55,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 190 disjoint index pairs (out of 190 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 18 [2018-07-24 10:46:55,883 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:55,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:55,948 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:229, output treesize:123 [2018-07-24 10:46:56,113 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:46:56,114 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 33 [2018-07-24 10:46:56,114 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:56,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:56,178 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:126, output treesize:125 [2018-07-24 10:46:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-07-24 10:46:56,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:46:57,483 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2018-07-24 10:46:57,489 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,500 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2018-07-24 10:46:57,508 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 31 [2018-07-24 10:46:57,544 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 0 case distinctions, treesize of input 25 treesize of output 6 [2018-07-24 10:46:57,544 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:57,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 22 [2018-07-24 10:46:57,572 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:57,574 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:46:57,588 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,594 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,608 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 45 [2018-07-24 10:46:57,691 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,692 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,695 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,695 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 33 treesize of output 17 [2018-07-24 10:46:57,695 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:57,697 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,698 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,699 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,709 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,710 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:46:57,734 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 40 [2018-07-24 10:46:57,734 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:57,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 40 [2018-07-24 10:46:57,793 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-07-24 10:46:57,796 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 32 treesize of output 12 [2018-07-24 10:46:57,796 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-07-24 10:46:57,820 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:46:57,834 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:57,845 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:57,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-24 10:46:57,852 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 1 variables, input treesize:23, output treesize:22 [2018-07-24 10:46:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 10:46:57,948 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:46:57,948 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21, 21, 18, 16] total 80 [2018-07-24 10:46:57,948 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:46:57,951 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-24 10:46:57,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-24 10:46:57,953 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=831, Invalid=5489, Unknown=0, NotChecked=0, Total=6320 [2018-07-24 10:46:57,953 INFO L87 Difference]: Start difference. First operand 1024 states and 1280 transitions. Second operand 43 states. [2018-07-24 10:46:58,365 WARN L169 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 116 [2018-07-24 10:46:58,756 WARN L169 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2018-07-24 10:46:59,162 WARN L169 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 120 [2018-07-24 10:46:59,557 WARN L169 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2018-07-24 10:47:00,017 WARN L169 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2018-07-24 10:47:00,453 WARN L169 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 113 [2018-07-24 10:47:00,893 WARN L169 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 121 [2018-07-24 10:47:01,472 WARN L169 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2018-07-24 10:47:02,035 WARN L169 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 129 [2018-07-24 10:47:02,619 WARN L169 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 131 [2018-07-24 10:47:03,176 WARN L169 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2018-07-24 10:47:03,662 WARN L169 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 127 [2018-07-24 10:47:04,178 WARN L169 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 132 [2018-07-24 10:47:04,690 WARN L169 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 130 [2018-07-24 10:47:05,208 WARN L169 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 133 [2018-07-24 10:47:05,716 WARN L169 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 127 [2018-07-24 10:47:06,214 WARN L169 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 124 [2018-07-24 10:47:06,675 WARN L169 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 130 [2018-07-24 10:47:07,157 WARN L169 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 121 [2018-07-24 10:47:07,646 WARN L169 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 130 [2018-07-24 10:47:08,215 WARN L169 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2018-07-24 10:47:08,896 WARN L169 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 133 [2018-07-24 10:47:09,398 WARN L169 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 125 [2018-07-24 10:47:09,871 WARN L169 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125 [2018-07-24 10:47:10,318 WARN L169 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119 [2018-07-24 10:47:10,858 WARN L169 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2018-07-24 10:47:11,486 WARN L169 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 128 [2018-07-24 10:47:11,911 WARN L169 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 116 [2018-07-24 10:47:12,355 WARN L169 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 111 [2018-07-24 10:47:12,888 WARN L169 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 119 [2018-07-24 10:47:13,418 WARN L169 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2018-07-24 10:47:13,892 WARN L169 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 117 [2018-07-24 10:47:14,358 WARN L169 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 119 [2018-07-24 10:47:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:47:14,536 INFO L93 Difference]: Finished difference Result 1120 states and 1388 transitions. [2018-07-24 10:47:14,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-24 10:47:14,537 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 56 [2018-07-24 10:47:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:47:14,541 INFO L225 Difference]: With dead ends: 1120 [2018-07-24 10:47:14,541 INFO L226 Difference]: Without dead ends: 1065 [2018-07-24 10:47:14,543 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 166 SyntacticMatches, 3 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4012 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=1940, Invalid=10942, Unknown=0, NotChecked=0, Total=12882 [2018-07-24 10:47:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2018-07-24 10:47:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1028. [2018-07-24 10:47:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1028 states. [2018-07-24 10:47:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1285 transitions. [2018-07-24 10:47:14,812 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1285 transitions. Word has length 56 [2018-07-24 10:47:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:47:14,812 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1285 transitions. [2018-07-24 10:47:14,812 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-24 10:47:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1285 transitions. [2018-07-24 10:47:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-24 10:47:14,815 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:47:14,815 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:47:14,816 INFO L414 AbstractCegarLoop]: === Iteration 22 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:47:14,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1614357520, now seen corresponding path program 6 times [2018-07-24 10:47:14,816 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:47:14,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:47:14,817 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:47:14,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:47:14,817 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:47:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:47:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 10:47:15,168 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:47:15,168 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 10:47:15,175 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-24 10:47:15,175 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder MIX_INSIDE_OUTSIDE (IT: FPandBP) [2018-07-24 10:47:15,200 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-07-24 10:47:15,201 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:47:15,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:47:15,217 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 [2018-07-24 10:47:15,218 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:15,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:47:15,224 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-07-24 10:47:15,269 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 12 treesize of output 11 [2018-07-24 10:47:15,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:15,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:47:15,278 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:17 [2018-07-24 10:47:15,304 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 20 [2018-07-24 10:47:15,305 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:15,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-24 10:47:15,315 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:23 [2018-07-24 10:47:15,354 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 20 [2018-07-24 10:47:15,355 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:15,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:47:15,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:31 [2018-07-24 10:47:15,470 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 10:47:15,471 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:47:21,782 WARN L169 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-24 10:47:21,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 19 treesize of output 23 [2018-07-24 10:47:21,787 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 23 treesize of output 31 [2018-07-24 10:47:21,791 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,805 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 39 [2018-07-24 10:47:21,840 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2018-07-24 10:47:21,857 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:21,859 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 34 [2018-07-24 10:47:21,876 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:21,878 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 17 [2018-07-24 10:47:21,879 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:21,942 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,946 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,951 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 44 [2018-07-24 10:47:21,969 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 3 xjuncts. [2018-07-24 10:47:21,971 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,973 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,974 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:21,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2018-07-24 10:47:21,975 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:22,014 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:47:22,037 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:47:22,058 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:47:22,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:47:22,086 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:33, output treesize:33 [2018-07-24 10:47:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 10:47:22,157 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 10:47:22,157 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 35 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 10:47:22,172 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-07-24 10:47:22,172 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder MIX_INSIDE_OUTSIDE (IT: FPandBP) [2018-07-24 10:47:23,575 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2018-07-24 10:47:23,575 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-24 10:47:23,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 10:47:23,583 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 [2018-07-24 10:47:23,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:23,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-24 10:47:23,589 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-07-24 10:47:23,626 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:47:23,627 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-07-24 10:47:23,627 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:23,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-24 10:47:23,636 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:18 [2018-07-24 10:47:23,682 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:47:23,683 INFO L700 Elim1Store]: detected not equals via solver [2018-07-24 10:47:23,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-07-24 10:47:23,685 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:23,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-07-24 10:47:23,700 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:27 [2018-07-24 10:47:23,731 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 24 [2018-07-24 10:47:23,731 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:23,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-07-24 10:47:23,740 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:21 [2018-07-24 10:47:30,309 WARN L169 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 10:47:32,337 WARN L169 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-07-24 10:47:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-24 10:47:32,359 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 10:47:48,078 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-07-24 10:47:48,088 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2018-07-24 10:47:48,107 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 40 [2018-07-24 10:47:48,246 WARN L169 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-07-24 10:47:48,262 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-07-24 10:47:48,263 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:48,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 27 treesize of output 18 [2018-07-24 10:47:48,265 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:48,281 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2018-07-24 10:47:48,282 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:48,402 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,403 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,403 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2018-07-24 10:47:48,405 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:48,481 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,482 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,483 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2018-07-24 10:47:48,484 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:48,487 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,492 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:48,508 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 40 [2018-07-24 10:47:48,510 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 3 xjuncts. [2018-07-24 10:47:49,144 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:49,150 INFO L682 Elim1Store]: detected equality via solver [2018-07-24 10:47:49,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 45 [2018-07-24 10:47:49,174 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 3 xjuncts. [2018-07-24 10:47:49,227 INFO L267 ElimStorePlain]: Start of recursive call 4: 4 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:47:49,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 22 treesize of output 25 [2018-07-24 10:47:49,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 18 treesize of output 20 [2018-07-24 10:47:49,316 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-07-24 10:47:49,319 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 17 treesize of output 4 [2018-07-24 10:47:49,319 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-07-24 10:47:49,334 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-24 10:47:49,375 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:47:49,404 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-24 10:47:49,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-24 10:47:49,440 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 5 variables, input treesize:27, output treesize:10 [2018-07-24 10:47:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 10:47:49,457 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 10:47:49,457 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 14, 9, 10] total 38 [2018-07-24 10:47:49,457 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 10:47:49,458 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-24 10:47:49,458 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-24 10:47:49,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1165, Unknown=27, NotChecked=0, Total=1406 [2018-07-24 10:47:49,459 INFO L87 Difference]: Start difference. First operand 1028 states and 1285 transitions. Second operand 19 states. [2018-07-24 10:47:50,182 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-07-24 10:47:50,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:47:50,764 INFO L93 Difference]: Finished difference Result 1257 states and 1562 transitions. [2018-07-24 10:47:50,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 10:47:50,766 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 59 [2018-07-24 10:47:50,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:47:50,772 INFO L225 Difference]: With dead ends: 1257 [2018-07-24 10:47:50,773 INFO L226 Difference]: Without dead ends: 1255 [2018-07-24 10:47:50,773 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 206 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=411, Invalid=1724, Unknown=27, NotChecked=0, Total=2162 [2018-07-24 10:47:50,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2018-07-24 10:47:50,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 993. [2018-07-24 10:47:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 993 states. [2018-07-24 10:47:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1247 transitions. [2018-07-24 10:47:50,963 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1247 transitions. Word has length 59 [2018-07-24 10:47:50,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:47:50,963 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1247 transitions. [2018-07-24 10:47:50,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-24 10:47:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1247 transitions. [2018-07-24 10:47:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-24 10:47:50,966 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:47:50,966 INFO L353 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:47:50,966 INFO L414 AbstractCegarLoop]: === Iteration 23 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_eureka____false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:47:50,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1569404001, now seen corresponding path program 1 times [2018-07-24 10:47:50,966 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:47:50,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:47:50,967 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-24 10:47:50,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:47:50,967 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:47:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:47:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:47:51,015 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-24 10:47:51,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:47:51 BoogieIcfgContainer [2018-07-24 10:47:51,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:47:51,066 INFO L168 Benchmark]: Toolchain (without parser) took 239560.79 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -408.9 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-24 10:47:51,067 INFO L168 Benchmark]: CDTParser took 0.30 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. [2018-07-24 10:47:51,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.66 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. [2018-07-24 10:47:51,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.43 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. [2018-07-24 10:47:51,067 INFO L168 Benchmark]: Boogie Preprocessor took 62.47 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. [2018-07-24 10:47:51,067 INFO L168 Benchmark]: RCFGBuilder took 731.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-07-24 10:47:51,068 INFO L168 Benchmark]: TraceAbstraction took 238364.13 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 838.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 350.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-07-24 10:47:51,069 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 367.66 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 30.43 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 62.47 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 731.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 720.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -770.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238364.13 ms. Allocated memory was 2.3 GB in the beginning and 3.1 GB in the end (delta: 838.9 MB). Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 350.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] int INFINITY = 899; VAL [\old(INFINITY)=900, INFINITY=899] [L13] int nodecount = __VERIFIER_nondet_int(); [L14] int edgecount = __VERIFIER_nondet_int(); [L15] COND FALSE !(!(0 <= nodecount && nodecount <= 4)) VAL [edgecount=1, INFINITY=899, nodecount=2] [L16] COND FALSE !(!(0 <= edgecount && edgecount <= 19)) [L17] int source = 0; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L18] int Source[20] = {0,4,1,1,0,0,1,3,4,4,2,2,3,0,0,3,1,2,2,3}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L19] int Dest[20] = {1,3,4,1,1,4,3,4,3,0,0,0,0,2,3,0,2,1,0,4}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L20] int Weight[20] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}; [L21] int distance[5]; [L22] int x,y; [L23] int i,j; [L25] i = 0 VAL [edgecount=1, i=0, INFINITY=899, nodecount=2, source=0] [L25] COND TRUE i < nodecount VAL [edgecount=1, i=0, INFINITY=899, nodecount=2, source=0] [L26] COND TRUE i == source [L27] distance[i] = 0 VAL [edgecount=1, i=0, INFINITY=899, nodecount=2, source=0] [L25] i++ [L25] i++ [L25] COND TRUE i < nodecount VAL [edgecount=1, i=1, INFINITY=899, nodecount=2, source=0] [L26] COND FALSE !(i == source) [L30] distance[i] = INFINITY VAL [edgecount=1, i=1, INFINITY=899, nodecount=2, source=0] [L25] i++ [L25] i++ [L25] COND FALSE !(i < nodecount) VAL [edgecount=1, i=2, INFINITY=899, nodecount=2, source=0] [L34] i = 0 VAL [edgecount=1, i=0, INFINITY=899, nodecount=2, source=0] [L34] COND TRUE i < nodecount [L36] j = 0 VAL [edgecount=1, i=0, INFINITY=899, j=0, nodecount=2, source=0] [L36] COND TRUE j < edgecount [L38] x = Dest[j] [L39] y = Source[j] VAL [edgecount=1, i=0, INFINITY=899, j=0, nodecount=2, source=0, x=1, y=0] [L40] COND TRUE distance[x] > distance[y] + Weight[j] [L42] distance[x] = -1 VAL [edgecount=1, i=0, INFINITY=899, j=0, nodecount=2, source=0, x=1, y=0] [L36] j++ [L36] j++ [L36] COND FALSE !(j < edgecount) VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L34] i++ [L34] i++ [L34] COND TRUE i < nodecount [L36] j = 0 VAL [edgecount=1, i=1, INFINITY=899, j=0, nodecount=2, source=0, x=1, y=0] [L36] COND TRUE j < edgecount [L38] x = Dest[j] [L39] y = Source[j] VAL [edgecount=1, i=1, INFINITY=899, j=0, nodecount=2, source=0, x=1, y=0] [L40] COND FALSE !(distance[x] > distance[y] + Weight[j]) VAL [edgecount=1, i=1, INFINITY=899, j=0, nodecount=2, source=0, x=1, y=0] [L36] j++ [L36] j++ [L36] COND FALSE !(j < edgecount) VAL [edgecount=1, i=1, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L34] i++ [L34] i++ [L34] COND FALSE !(i < nodecount) VAL [edgecount=1, i=2, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L46] i = 0 VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L46] COND TRUE i < edgecount [L48] x = Dest[i] [L49] y = Source[i] VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L50] COND FALSE !(distance[x] > distance[y] + Weight[i]) VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L46] i++ [L46] i++ [L46] COND FALSE !(i < edgecount) VAL [edgecount=1, i=1, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L56] i = 0 VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L56] COND TRUE i < nodecount VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L58] CALL __VERIFIER_assert(distance[i]>=0) VAL [\old(cond)=1, INFINITY=899] [L6] COND FALSE, RET !(!(cond)) VAL [\old(cond)=1, cond=1, INFINITY=899] [L58] __VERIFIER_assert(distance[i]>=0) VAL [edgecount=1, i=0, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L56] i++ [L56] i++ [L56] COND TRUE i < nodecount VAL [edgecount=1, i=1, INFINITY=899, j=1, nodecount=2, source=0, x=1, y=0] [L58] CALL __VERIFIER_assert(distance[i]>=0) VAL [\old(cond)=0, INFINITY=899] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, INFINITY=899] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0, INFINITY=899] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 41 locations, 1 error locations. UNSAFE Result, 238.3s OverallTime, 23 OverallIterations, 5 TraceHistogramMax, 89.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1224 SDtfs, 4240 SDslu, 6709 SDs, 0 SdLazy, 8653 SolverSat, 1986 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3643 GetRequests, 2822 SyntacticMatches, 116 SemanticMatches, 705 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16373 ImplicationChecksByTransitivity, 154.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1028occurred in iteration=21, 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: 1.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 3675 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 141.8s InterpolantComputationTime, 2631 NumberOfCodeBlocks, 2631 NumberOfCodeBlocksAsserted, 91 NumberOfCheckSat, 4078 ConstructedInterpolants, 118 QuantifiedInterpolants, 3667858 SizeOfPredicates, 282 NumberOfNonLiveVariables, 3388 ConjunctsInSsa, 543 ConjunctsInUnsatCore, 90 InterpolantComputations, 5 PerfectInterpolantSequences, 1004/2273 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_01_false-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-47-51-077.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_01_false-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-47-51-077.csv Received shutdown request...