java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/insertion_sort_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 09:56:12,082 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 09:56:12,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 09:56:12,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 09:56:12,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 09:56:12,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 09:56:12,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 09:56:12,101 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 09:56:12,103 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 09:56:12,104 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 09:56:12,105 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 09:56:12,105 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 09:56:12,106 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 09:56:12,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 09:56:12,108 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 09:56:12,109 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 09:56:12,110 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 09:56:12,112 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 09:56:12,114 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 09:56:12,116 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 09:56:12,117 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 09:56:12,118 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 09:56:12,121 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 09:56:12,121 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 09:56:12,122 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 09:56:12,123 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 09:56:12,124 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 09:56:12,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 09:56:12,125 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 09:56:12,127 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 09:56:12,127 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 09:56:12,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 09:56:12,130 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 [2018-09-18 09:56:12,147 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 09:56:12,147 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 09:56:12,148 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 09:56:12,148 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 09:56:12,148 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 09:56:12,149 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 09:56:12,149 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 09:56:12,149 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 09:56:12,149 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 09:56:12,149 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 09:56:12,150 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 09:56:12,150 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 09:56:12,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 09:56:12,151 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 09:56:12,151 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 09:56:12,151 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 09:56:12,151 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 09:56:12,152 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 09:56:12,152 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 09:56:12,152 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 09:56:12,152 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 09:56:12,152 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 09:56:12,153 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 09:56:12,153 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 09:56:12,153 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 09:56:12,153 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 09:56:12,153 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 09:56:12,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 09:56:12,154 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 09:56:12,154 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 09:56:12,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 09:56:12,154 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 09:56:12,155 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 09:56:12,155 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 09:56:12,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 09:56:12,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 09:56:12,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 09:56:12,245 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 09:56:12,246 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 09:56:12,247 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/insertion_sort_true-unreach-call_true-termination.i [2018-09-18 09:56:12,587 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0466077/e7771f998caa47e28271f90d5d07c410/FLAG8e8568a99 [2018-09-18 09:56:12,741 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 09:56:12,741 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/insertion_sort_true-unreach-call_true-termination.i [2018-09-18 09:56:12,749 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0466077/e7771f998caa47e28271f90d5d07c410/FLAG8e8568a99 [2018-09-18 09:56:12,769 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad0466077/e7771f998caa47e28271f90d5d07c410 [2018-09-18 09:56:12,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 09:56:12,784 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 09:56:12,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:12,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 09:56:12,793 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 09:56:12,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:12" (1/1) ... [2018-09-18 09:56:12,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:12, skipping insertion in model container [2018-09-18 09:56:12,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 09:56:12" (1/1) ... [2018-09-18 09:56:12,812 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 09:56:13,061 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:13,086 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 09:56:13,099 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 09:56:13,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13 WrapperNode [2018-09-18 09:56:13,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 09:56:13,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:13,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 09:56:13,117 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 09:56:13,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 09:56:13,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 09:56:13,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 09:56:13,142 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 09:56:13,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (1/1) ... [2018-09-18 09:56:13,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 09:56:13,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 09:56:13,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 09:56:13,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 09:56:13,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (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 [2018-09-18 09:56:13,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 09:56:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 09:56:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 09:56:13,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 09:56:13,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 09:56:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 09:56:13,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 09:56:13,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 09:56:13,768 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 09:56:13,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:13 BoogieIcfgContainer [2018-09-18 09:56:13,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 09:56:13,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 09:56:13,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 09:56:13,774 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 09:56:13,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 09:56:12" (1/3) ... [2018-09-18 09:56:13,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59005428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:13, skipping insertion in model container [2018-09-18 09:56:13,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 09:56:13" (2/3) ... [2018-09-18 09:56:13,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59005428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 09:56:13, skipping insertion in model container [2018-09-18 09:56:13,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 09:56:13" (3/3) ... [2018-09-18 09:56:13,779 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort_true-unreach-call_true-termination.i [2018-09-18 09:56:13,787 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 09:56:13,795 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 09:56:13,840 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 09:56:13,841 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 09:56:13,841 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 09:56:13,841 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 09:56:13,841 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 09:56:13,841 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 09:56:13,841 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 09:56:13,842 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 09:56:13,842 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 09:56:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-18 09:56:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-18 09:56:13,867 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:13,868 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:13,869 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:13,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1423139162, now seen corresponding path program 1 times [2018-09-18 09:56:13,877 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:13,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:13,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:13,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:13,932 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:13,998 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:13,998 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-18 09:56:13,998 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:14,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-18 09:56:14,015 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-18 09:56:14,016 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:14,019 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-09-18 09:56:14,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:14,042 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2018-09-18 09:56:14,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-18 09:56:14,043 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-09-18 09:56:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:14,052 INFO L225 Difference]: With dead ends: 49 [2018-09-18 09:56:14,052 INFO L226 Difference]: Without dead ends: 22 [2018-09-18 09:56:14,055 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-18 09:56:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-09-18 09:56:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-09-18 09:56:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-18 09:56:14,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-09-18 09:56:14,094 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-09-18 09:56:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:14,095 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-09-18 09:56:14,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-18 09:56:14,095 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-09-18 09:56:14,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-18 09:56:14,096 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:14,096 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:14,096 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:14,097 INFO L82 PathProgramCache]: Analyzing trace with hash 682385334, now seen corresponding path program 1 times [2018-09-18 09:56:14,097 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:14,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:14,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:14,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:14,099 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:14,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:14,490 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 09:56:14,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 09:56:14,491 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 09:56:14,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 09:56:14,493 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 09:56:14,493 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 09:56:14,494 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2018-09-18 09:56:14,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:14,690 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-09-18 09:56:14,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-18 09:56:14,690 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-09-18 09:56:14,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:14,691 INFO L225 Difference]: With dead ends: 41 [2018-09-18 09:56:14,692 INFO L226 Difference]: Without dead ends: 28 [2018-09-18 09:56:14,693 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-18 09:56:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-09-18 09:56:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2018-09-18 09:56:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-18 09:56:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-09-18 09:56:14,703 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2018-09-18 09:56:14,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:14,703 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-09-18 09:56:14,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 09:56:14,703 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-09-18 09:56:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-18 09:56:14,704 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:14,704 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:14,705 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:14,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2108313333, now seen corresponding path program 1 times [2018-09-18 09:56:14,705 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:14,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:14,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:14,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:14,707 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:15,156 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2018-09-18 09:56:15,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:15,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:15,321 INFO L197 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 [2018-09-18 09:56:15,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:15,336 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:15,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:15,620 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:15,630 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 14 treesize of output 19 [2018-09-18 09:56:15,631 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:15,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:56:15,666 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-09-18 09:56:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:15,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:16,531 WARN L178 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2018-09-18 09:56:16,538 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:16,539 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-09-18 09:56:16,540 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,544 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:16,546 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-09-18 09:56:16,547 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,551 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 15 treesize of output 13 [2018-09-18 09:56:16,552 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,599 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:16,610 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2018-09-18 09:56:16,614 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:16,629 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,630 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:3 [2018-09-18 09:56:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:16,669 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:16,669 INFO L197 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 [2018-09-18 09:56:16,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:16,686 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:16,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:16,729 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:16,733 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 14 treesize of output 19 [2018-09-18 09:56:16,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,751 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:56:16,752 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-09-18 09:56:16,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:16,796 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:16,928 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2018-09-18 09:56:16,933 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 15 treesize of output 13 [2018-09-18 09:56:16,934 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,938 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:16,940 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-09-18 09:56:16,942 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:16,959 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:16,961 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-09-18 09:56:16,962 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:17,030 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:17,046 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2018-09-18 09:56:17,048 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:17,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:17,058 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:3 [2018-09-18 09:56:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:17,122 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:56:17,122 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 16 [2018-09-18 09:56:17,122 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:56:17,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 09:56:17,123 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 09:56:17,124 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-09-18 09:56:17,125 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 13 states. [2018-09-18 09:56:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:17,551 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2018-09-18 09:56:17,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 09:56:17,552 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-09-18 09:56:17,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:17,555 INFO L225 Difference]: With dead ends: 52 [2018-09-18 09:56:17,556 INFO L226 Difference]: Without dead ends: 50 [2018-09-18 09:56:17,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 66 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2018-09-18 09:56:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-09-18 09:56:17,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2018-09-18 09:56:17,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-09-18 09:56:17,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-09-18 09:56:17,570 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 20 [2018-09-18 09:56:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:17,571 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-09-18 09:56:17,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 09:56:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-09-18 09:56:17,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-18 09:56:17,572 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:17,572 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:17,573 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:17,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1656387099, now seen corresponding path program 1 times [2018-09-18 09:56:17,573 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:17,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:17,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:17,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:17,575 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:17,970 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:17,970 INFO L197 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 [2018-09-18 09:56:17,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:17,980 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:18,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:18,050 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,051 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 20 treesize of output 27 [2018-09-18 09:56:18,053 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,071 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2018-09-18 09:56:18,118 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,120 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,121 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 27 treesize of output 30 [2018-09-18 09:56:18,122 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:56:18,137 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2018-09-18 09:56:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:18,217 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:18,296 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,298 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 34 treesize of output 35 [2018-09-18 09:56:18,359 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,360 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,361 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,364 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,374 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,379 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 43 [2018-09-18 09:56:18,383 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:18,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,413 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,414 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,415 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,422 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,424 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-09-18 09:56:18,426 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,432 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,433 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,434 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:18,439 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2018-09-18 09:56:18,440 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,489 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:38, output treesize:8 [2018-09-18 09:56:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:18,553 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:18,554 INFO L197 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 [2018-09-18 09:56:18,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:18,572 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:56:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:18,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:18,615 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,617 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 16 treesize of output 21 [2018-09-18 09:56:18,617 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:18,633 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. [2018-09-18 09:56:18,633 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:26 [2018-09-18 09:56:18,847 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,850 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,853 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:18,865 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 23 treesize of output 47 [2018-09-18 09:56:18,867 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:18,943 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-09-18 09:56:18,943 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:47 [2018-09-18 09:56:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:19,154 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:19,165 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,166 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 38 treesize of output 39 [2018-09-18 09:56:19,251 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,252 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,252 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,253 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,253 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,254 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,257 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,259 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 44 [2018-09-18 09:56:19,261 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:19,288 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,289 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,290 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,293 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,300 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,310 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 48 [2018-09-18 09:56:19,313 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:19,321 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,322 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,327 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,328 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,330 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 36 [2018-09-18 09:56:19,332 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:19,340 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,342 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,343 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,344 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,345 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,346 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,351 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,353 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2018-09-18 09:56:19,355 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:19,359 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,360 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,361 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,364 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,373 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,388 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 48 [2018-09-18 09:56:19,390 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:19,394 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,395 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,396 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,402 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2018-09-18 09:56:19,403 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:19,410 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,411 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,413 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,414 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,415 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,419 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:19,421 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 47 [2018-09-18 09:56:19,422 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:19,483 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:56:19,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:56:19,509 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:48, output treesize:22 [2018-09-18 09:56:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:19,612 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:56:19,612 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 23 [2018-09-18 09:56:19,613 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:56:19,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 09:56:19,613 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 09:56:19,614 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-09-18 09:56:19,616 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 13 states. [2018-09-18 09:56:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:56:20,185 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2018-09-18 09:56:20,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 09:56:20,188 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 22 [2018-09-18 09:56:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:56:20,192 INFO L225 Difference]: With dead ends: 81 [2018-09-18 09:56:20,192 INFO L226 Difference]: Without dead ends: 64 [2018-09-18 09:56:20,193 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 69 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2018-09-18 09:56:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-09-18 09:56:20,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 40. [2018-09-18 09:56:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-09-18 09:56:20,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-09-18 09:56:20,204 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 22 [2018-09-18 09:56:20,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:56:20,205 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-09-18 09:56:20,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 09:56:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-09-18 09:56:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-18 09:56:20,206 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:56:20,207 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:56:20,207 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:56:20,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1569722720, now seen corresponding path program 2 times [2018-09-18 09:56:20,207 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:56:20,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:20,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:56:20,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:56:20,209 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:56:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:56:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:20,533 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:20,534 INFO L197 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 [2018-09-18 09:56:20,550 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:56:20,550 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:56:20,578 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:56:20,579 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:56:20,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:20,706 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:20,709 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 0 case distinctions, treesize of input 18 treesize of output 19 [2018-09-18 09:56:20,711 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:20,718 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:20,718 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2018-09-18 09:56:20,769 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:20,770 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:20,771 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:20,776 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 16 treesize of output 31 [2018-09-18 09:56:20,777 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:20,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:56:20,824 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:14 [2018-09-18 09:56:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:20,922 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:56:22,978 WARN L979 $PredicateComparison]: unable to prove that (forall ((main_~key~0 Int)) (let ((.cse0 (store c_main_~v~0 (+ c_main_~i~0 1) main_~key~0))) (<= (select .cse0 0) (select .cse0 1)))) is different from false [2018-09-18 09:56:35,296 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-18 09:56:47,640 WARN L178 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 21 [2018-09-18 09:56:47,705 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-09-18 09:56:47,797 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,798 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-09-18 09:56:47,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,800 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,801 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-09-18 09:56:47,802 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,822 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,823 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 16 [2018-09-18 09:56:47,824 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,826 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,827 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2018-09-18 09:56:47,827 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,831 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 10 treesize of output 8 [2018-09-18 09:56:47,832 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,834 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 15 treesize of output 13 [2018-09-18 09:56:47,835 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,841 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,842 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 15 [2018-09-18 09:56:47,842 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,843 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,855 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-09-18 09:56:47,922 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,922 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,924 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,928 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 34 [2018-09-18 09:56:47,930 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:47,932 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,933 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,934 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,941 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,949 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 44 [2018-09-18 09:56:47,951 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:47,965 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,966 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,968 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,981 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,986 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 42 [2018-09-18 09:56:47,988 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-09-18 09:56:47,991 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:47,994 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2018-09-18 09:56:47,995 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,000 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,004 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,007 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,015 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,030 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 49 [2018-09-18 09:56:48,034 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-09-18 09:56:48,042 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,043 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,047 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,054 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,069 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 47 [2018-09-18 09:56:48,074 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-09-18 09:56:48,104 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,120 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,128 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:56:48,145 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2018-09-18 09:56:48,146 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,176 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,181 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 4 variables, input treesize:69, output treesize:5 [2018-09-18 09:56:48,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-09-18 09:56:48,218 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:56:48,219 INFO L197 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 [2018-09-18 09:56:48,236 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:56:48,236 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:56:48,271 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:56:48,272 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:56:48,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:56:48,344 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:48,346 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 14 treesize of output 19 [2018-09-18 09:56:48,347 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,358 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,358 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-09-18 09:56:48,498 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:48,511 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:56:48,573 INFO L303 Elim1Store]: Index analysis took 114 ms [2018-09-18 09:56:48,575 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 16 treesize of output 27 [2018-09-18 09:56:48,575 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:56:48,587 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-09-18 09:56:48,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:56:48,604 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:13,371 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,374 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 36 treesize of output 39 [2018-09-18 09:57:13,457 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,458 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,461 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,469 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,482 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 47 [2018-09-18 09:57:13,486 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,489 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,490 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,494 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,502 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,515 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 47 [2018-09-18 09:57:13,519 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,523 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,541 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 39 [2018-09-18 09:57:13,543 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,568 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,581 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,587 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,593 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,608 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 49 [2018-09-18 09:57:13,612 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,614 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,631 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 34 [2018-09-18 09:57:13,633 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,636 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,636 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,640 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,647 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,660 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 50 [2018-09-18 09:57:13,664 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,666 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,667 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,708 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,720 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:13,741 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 49 [2018-09-18 09:57:13,744 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-09-18 09:57:13,930 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 34 treesize of output 32 [2018-09-18 09:57:14,008 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,010 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 0 case distinctions, treesize of input 23 treesize of output 18 [2018-09-18 09:57:14,011 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:14,018 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,021 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,044 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2018-09-18 09:57:14,045 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,060 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 18 treesize of output 18 [2018-09-18 09:57:14,061 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,066 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,071 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,086 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 31 [2018-09-18 09:57:14,088 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,093 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,096 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,101 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-09-18 09:57:14,103 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,105 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,109 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2018-09-18 09:57:14,117 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,121 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,127 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:14,132 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 30 [2018-09-18 09:57:14,134 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:14,196 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-09-18 09:57:14,251 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-09-18 09:57:14,252 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:71, output treesize:33 [2018-09-18 09:57:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-09-18 09:57:14,345 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:14,345 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12] total 29 [2018-09-18 09:57:14,346 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:14,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 09:57:14,347 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 09:57:14,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=626, Unknown=20, NotChecked=52, Total=812 [2018-09-18 09:57:14,348 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 17 states. [2018-09-18 09:57:17,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:17,001 INFO L93 Difference]: Finished difference Result 99 states and 114 transitions. [2018-09-18 09:57:17,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 09:57:17,001 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 26 [2018-09-18 09:57:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:17,004 INFO L225 Difference]: With dead ends: 99 [2018-09-18 09:57:17,004 INFO L226 Difference]: Without dead ends: 97 [2018-09-18 09:57:17,005 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 74 SyntacticMatches, 14 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=209, Invalid=964, Unknown=21, NotChecked=66, Total=1260 [2018-09-18 09:57:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-18 09:57:17,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 46. [2018-09-18 09:57:17,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-09-18 09:57:17,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2018-09-18 09:57:17,015 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 26 [2018-09-18 09:57:17,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:17,016 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2018-09-18 09:57:17,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 09:57:17,016 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2018-09-18 09:57:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-18 09:57:17,017 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:17,017 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:17,017 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:17,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1975775309, now seen corresponding path program 1 times [2018-09-18 09:57:17,017 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:17,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:17,018 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:57:17,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:17,018 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:17,177 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:17,177 INFO L197 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 [2018-09-18 09:57:17,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:17,188 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:57:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:17,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:17,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:18,194 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:18,194 INFO L197 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 [2018-09-18 09:57:18,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:18,210 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 09:57:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:18,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:18,276 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:18,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:18,564 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:18,565 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 11 [2018-09-18 09:57:18,565 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:18,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 09:57:18,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 09:57:18,565 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-18 09:57:18,566 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 9 states. [2018-09-18 09:57:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:18,691 INFO L93 Difference]: Finished difference Result 75 states and 85 transitions. [2018-09-18 09:57:18,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 09:57:18,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-18 09:57:18,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:18,693 INFO L225 Difference]: With dead ends: 75 [2018-09-18 09:57:18,693 INFO L226 Difference]: Without dead ends: 58 [2018-09-18 09:57:18,694 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 13 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-18 09:57:18,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-18 09:57:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2018-09-18 09:57:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-09-18 09:57:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-09-18 09:57:18,703 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 28 [2018-09-18 09:57:18,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:18,703 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-09-18 09:57:18,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 09:57:18,704 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-09-18 09:57:18,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-18 09:57:18,705 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:18,705 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:18,705 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:18,705 INFO L82 PathProgramCache]: Analyzing trace with hash 533116474, now seen corresponding path program 2 times [2018-09-18 09:57:18,705 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:18,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:18,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 09:57:18,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:18,707 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:19,023 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:19,023 INFO L197 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 [2018-09-18 09:57:19,030 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:57:19,031 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:57:19,043 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:57:19,044 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:19,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:19,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-09-18 09:57:19,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,077 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,078 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:7 [2018-09-18 09:57:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:19,113 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:19,266 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:19,267 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-09-18 09:57:19,267 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,270 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 15 treesize of output 13 [2018-09-18 09:57:19,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,272 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:19,273 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-09-18 09:57:19,273 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,305 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:19,311 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 21 [2018-09-18 09:57:19,312 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:19,316 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,316 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:3 [2018-09-18 09:57:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:19,350 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:19,350 INFO L197 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 [2018-09-18 09:57:19,366 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:57:19,366 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:57:19,405 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:57:19,405 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:19,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:19,484 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 8 treesize of output 7 [2018-09-18 09:57:19,484 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,494 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:7 [2018-09-18 09:57:19,576 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:19,577 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 19 [2018-09-18 09:57:19,577 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,587 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,587 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:16 [2018-09-18 09:57:19,656 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:19,657 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:19,659 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 0 case distinctions, treesize of input 24 treesize of output 29 [2018-09-18 09:57:19,660 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:19,670 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:15 [2018-09-18 09:57:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:19,724 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:20,085 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2018-09-18 09:57:20,089 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,093 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2018-09-18 09:57:20,163 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,177 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,177 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,178 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,178 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,188 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 100 [2018-09-18 09:57:20,276 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,277 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,279 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,280 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2018-09-18 09:57:20,281 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:20,332 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,341 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,355 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,364 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,385 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,385 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,386 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,386 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,395 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,401 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 69 [2018-09-18 09:57:20,403 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:20,439 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:20,445 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:20,449 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,450 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,451 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,451 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,453 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 136 [2018-09-18 09:57:20,497 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,498 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,498 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,499 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,500 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,503 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 79 [2018-09-18 09:57:20,592 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,607 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,615 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,622 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,622 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,624 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,624 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,624 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,625 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,634 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 72 [2018-09-18 09:57:20,643 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:20,686 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:20,695 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:20,701 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,702 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,702 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,707 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 119 treesize of output 123 [2018-09-18 09:57:20,756 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,757 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,758 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,759 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,767 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,768 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 108 [2018-09-18 09:57:20,930 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 36 [2018-09-18 09:57:20,938 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,940 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,941 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,942 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,942 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,946 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,947 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,947 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,955 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,968 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:20,995 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 116 [2018-09-18 09:57:21,002 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 11 xjuncts. [2018-09-18 09:57:21,261 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,262 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,265 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,266 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-09-18 09:57:21,266 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:21,268 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,269 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,272 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,273 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 28 [2018-09-18 09:57:21,274 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:21,300 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:57:21,316 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:21,321 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,324 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,325 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,326 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,351 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 142 treesize of output 132 [2018-09-18 09:57:21,515 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 62 [2018-09-18 09:57:21,521 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,522 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,523 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:21,527 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,528 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,529 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,529 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,530 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 51 treesize of output 87 [2018-09-18 09:57:21,620 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,621 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,621 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,622 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,622 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,623 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,624 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,628 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,628 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,629 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,631 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,637 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,649 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 73 [2018-09-18 09:57:21,650 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:21,685 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:21,731 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,732 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,733 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,733 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,734 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,737 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 88 [2018-09-18 09:57:21,813 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,814 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,815 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,816 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,816 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,819 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,819 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,820 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,821 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,830 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:21,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 69 [2018-09-18 09:57:21,840 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:22,342 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:22,776 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,792 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,805 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,813 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,826 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,839 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,852 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,869 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,883 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,892 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,904 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:22,937 INFO L303 Elim1Store]: Index analysis took 185 ms [2018-09-18 09:57:22,938 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 122 [2018-09-18 09:57:23,087 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2018-09-18 09:57:23,089 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,090 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,090 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,093 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,096 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,097 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,097 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,098 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,099 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,102 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,111 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 109 [2018-09-18 09:57:23,137 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 5 xjuncts. [2018-09-18 09:57:23,202 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:23,234 INFO L267 ElimStorePlain]: Start of recursive call 14: 2 dim-0 vars, 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-09-18 09:57:23,237 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,238 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,239 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,241 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,258 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 135 [2018-09-18 09:57:23,367 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-09-18 09:57:23,373 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,374 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,375 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,375 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,376 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,378 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,381 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,382 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 131 [2018-09-18 09:57:23,491 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,492 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,496 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,497 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-09-18 09:57:23,498 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:23,532 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,533 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,536 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,536 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,537 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,538 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,540 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,541 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,541 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,543 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,547 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,557 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 36 treesize of output 111 [2018-09-18 09:57:23,590 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 10 xjuncts. [2018-09-18 09:57:23,705 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:23,730 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:23,735 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,737 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,738 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,755 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 140 treesize of output 134 [2018-09-18 09:57:23,892 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2018-09-18 09:57:23,896 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,905 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,906 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,906 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,907 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,911 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,912 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:23,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 99 treesize of output 147 [2018-09-18 09:57:24,251 WARN L178 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2018-09-18 09:57:24,255 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,255 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,255 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,256 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,256 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,257 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,259 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,260 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,266 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,272 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 90 [2018-09-18 09:57:24,283 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:24,417 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,418 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,422 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,423 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-09-18 09:57:24,424 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:24,504 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,507 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,510 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,511 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,512 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,513 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,515 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,516 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,517 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,518 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,523 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,535 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,570 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 148 [2018-09-18 09:57:24,580 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 11 xjuncts. [2018-09-18 09:57:24,821 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,837 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,838 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,838 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,845 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,856 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 66 [2018-09-18 09:57:24,858 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 3 xjuncts. [2018-09-18 09:57:24,860 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,862 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,863 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,863 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,869 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:24,883 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 73 [2018-09-18 09:57:24,885 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 3 xjuncts. [2018-09-18 09:57:25,027 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,029 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,032 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,033 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,034 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,034 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,036 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,037 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,038 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,039 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,044 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,054 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,081 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 138 [2018-09-18 09:57:25,086 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 11 xjuncts. [2018-09-18 09:57:25,187 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,191 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,191 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,192 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,198 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,211 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 63 [2018-09-18 09:57:25,213 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 3 xjuncts. [2018-09-18 09:57:25,239 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, 6 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,264 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,267 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,268 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,268 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:25,312 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,334 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 105 [2018-09-18 09:57:25,376 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,378 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:25,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,382 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 96 [2018-09-18 09:57:25,531 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2018-09-18 09:57:25,535 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,536 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,536 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,537 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,537 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,537 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,538 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,539 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,540 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,545 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,551 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,562 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 82 [2018-09-18 09:57:25,564 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:25,583 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,597 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,601 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,601 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,602 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,602 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,602 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,611 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,612 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,617 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,623 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,637 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 82 [2018-09-18 09:57:25,639 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:25,647 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,648 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,653 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,654 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,654 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,655 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:25,655 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,658 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,659 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 40 treesize of output 63 [2018-09-18 09:57:25,662 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:25,810 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:57:25,810 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,812 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,813 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,815 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,816 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-09-18 09:57:25,817 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,820 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,820 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,839 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,839 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-09-18 09:57:25,840 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,859 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,860 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,862 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,863 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-09-18 09:57:25,863 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,892 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,917 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-09-18 09:57:25,918 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:25,944 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:25,957 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:26,019 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:26,020 INFO L303 Elim1Store]: Index analysis took 101 ms [2018-09-18 09:57:26,021 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-09-18 09:57:26,021 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:26,346 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:57:26,359 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:57:26,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:57:26,394 INFO L202 ElimStorePlain]: Needed 44 recursive calls to eliminate 2 variables, input treesize:121, output treesize:24 [2018-09-18 09:57:26,479 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:26,481 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:26,481 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 12, 13] total 27 [2018-09-18 09:57:26,481 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:26,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 09:57:26,482 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 09:57:26,482 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=590, Unknown=0, NotChecked=0, Total=702 [2018-09-18 09:57:26,483 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 13 states. [2018-09-18 09:57:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:27,054 INFO L93 Difference]: Finished difference Result 114 states and 132 transitions. [2018-09-18 09:57:27,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-18 09:57:27,055 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2018-09-18 09:57:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:27,056 INFO L225 Difference]: With dead ends: 114 [2018-09-18 09:57:27,056 INFO L226 Difference]: Without dead ends: 112 [2018-09-18 09:57:27,058 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 88 SyntacticMatches, 10 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=271, Invalid=1451, Unknown=0, NotChecked=0, Total=1722 [2018-09-18 09:57:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-09-18 09:57:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 60. [2018-09-18 09:57:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-18 09:57:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2018-09-18 09:57:27,068 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 28 [2018-09-18 09:57:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:27,069 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2018-09-18 09:57:27,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 09:57:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2018-09-18 09:57:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-18 09:57:27,070 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:27,070 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:27,070 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:27,070 INFO L82 PathProgramCache]: Analyzing trace with hash -601080838, now seen corresponding path program 3 times [2018-09-18 09:57:27,070 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:27,071 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:57:27,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:27,072 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:27,445 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-09-18 09:57:27,786 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-09-18 09:57:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:28,048 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:28,048 INFO L197 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 [2018-09-18 09:57:28,055 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-18 09:57:28,055 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-09-18 09:57:28,068 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-18 09:57:28,068 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:28,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:28,080 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,080 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 18 treesize of output 25 [2018-09-18 09:57:28,081 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,093 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:27 [2018-09-18 09:57:28,123 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,124 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,124 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 25 treesize of output 28 [2018-09-18 09:57:28,125 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,134 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2018-09-18 09:57:28,173 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,174 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,177 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 22 treesize of output 37 [2018-09-18 09:57:28,181 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,194 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:9 [2018-09-18 09:57:28,249 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:28,249 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:28,310 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,311 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 34 treesize of output 35 [2018-09-18 09:57:28,359 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,360 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,362 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,367 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,374 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 40 [2018-09-18 09:57:28,375 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:28,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,382 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2018-09-18 09:57:28,382 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,385 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,385 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,387 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,393 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:28,405 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 48 [2018-09-18 09:57:28,408 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2018-09-18 09:57:28,422 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,424 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:34, output treesize:3 [2018-09-18 09:57:28,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-18 09:57:28,460 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:28,460 INFO L197 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 [2018-09-18 09:57:28,475 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-09-18 09:57:28,476 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-09-18 09:57:28,539 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-09-18 09:57:28,540 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:28,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:28,590 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,591 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 20 treesize of output 27 [2018-09-18 09:57:28,591 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,602 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:32 [2018-09-18 09:57:28,622 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,623 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,624 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 25 treesize of output 28 [2018-09-18 09:57:28,624 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,632 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,633 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:13 [2018-09-18 09:57:28,663 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,664 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,665 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:28,668 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 18 treesize of output 37 [2018-09-18 09:57:28,668 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:28,679 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:9 [2018-09-18 09:57:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:28,684 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:36,922 WARN L178 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-18 09:57:42,837 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,838 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 44 treesize of output 45 [2018-09-18 09:57:42,853 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,854 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,855 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 48 [2018-09-18 09:57:42,919 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,919 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,920 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,922 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,923 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,929 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,935 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 45 [2018-09-18 09:57:42,936 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:42,938 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,941 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,955 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 39 [2018-09-18 09:57:42,957 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 3 xjuncts. [2018-09-18 09:57:42,967 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,967 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,968 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,969 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,970 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,974 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,981 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 47 [2018-09-18 09:57:42,982 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:42,984 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,985 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,987 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:42,995 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 37 [2018-09-18 09:57:42,996 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:43,018 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,019 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,020 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,021 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,021 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,028 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,034 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 47 [2018-09-18 09:57:43,035 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:43,037 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,038 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,038 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,040 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,041 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,047 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,053 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 46 [2018-09-18 09:57:43,055 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:43,083 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,091 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,093 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,099 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:43,104 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 45 [2018-09-18 09:57:43,106 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:43,170 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-09-18 09:57:43,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-09-18 09:57:43,237 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-09-18 09:57:43,237 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:51, output treesize:50 [2018-09-18 09:57:43,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:43,312 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:57:43,312 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 9, 12, 12] total 31 [2018-09-18 09:57:43,312 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:57:43,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-18 09:57:43,313 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-18 09:57:43,314 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=785, Unknown=3, NotChecked=0, Total=930 [2018-09-18 09:57:43,314 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand 19 states. [2018-09-18 09:57:43,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:57:43,599 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-09-18 09:57:43,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 09:57:43,599 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 28 [2018-09-18 09:57:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:57:43,601 INFO L225 Difference]: With dead ends: 89 [2018-09-18 09:57:43,602 INFO L226 Difference]: Without dead ends: 87 [2018-09-18 09:57:43,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=190, Invalid=997, Unknown=3, NotChecked=0, Total=1190 [2018-09-18 09:57:43,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-09-18 09:57:43,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 54. [2018-09-18 09:57:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-18 09:57:43,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2018-09-18 09:57:43,612 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 28 [2018-09-18 09:57:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:57:43,612 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2018-09-18 09:57:43,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-18 09:57:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2018-09-18 09:57:43,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-18 09:57:43,613 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:57:43,613 INFO L376 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:57:43,614 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:57:43,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1568014508, now seen corresponding path program 4 times [2018-09-18 09:57:43,614 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:57:43,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:43,615 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:57:43,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:57:43,615 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:57:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:57:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:43,827 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:43,827 INFO L197 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 [2018-09-18 09:57:43,836 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-18 09:57:43,836 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-09-18 09:57:43,849 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-18 09:57:43,849 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:43,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:43,869 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:43,870 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 20 treesize of output 27 [2018-09-18 09:57:43,870 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:43,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:43,880 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:29 [2018-09-18 09:57:43,908 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:43,909 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:43,910 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 27 treesize of output 30 [2018-09-18 09:57:43,910 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:43,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:57:43,923 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2018-09-18 09:57:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:43,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:44,014 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,014 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 0 case distinctions, treesize of input 34 treesize of output 35 [2018-09-18 09:57:44,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,095 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,096 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,101 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,107 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 43 [2018-09-18 09:57:44,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:44,134 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,149 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,157 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,170 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,179 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,180 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-09-18 09:57:44,181 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,183 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,183 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,184 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:57:44,186 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2018-09-18 09:57:44,186 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,203 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,204 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:38, output treesize:8 [2018-09-18 09:57:44,222 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:44,242 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:57:44,242 INFO L197 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 [2018-09-18 09:57:44,258 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-09-18 09:57:44,258 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-09-18 09:57:44,348 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-09-18 09:57:44,348 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:57:44,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:57:44,362 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 [2018-09-18 09:57:44,362 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,370 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:7 [2018-09-18 09:57:44,408 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,409 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 20 [2018-09-18 09:57:44,409 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,416 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,416 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-09-18 09:57:44,439 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,440 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,441 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,445 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 42 [2018-09-18 09:57:44,446 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:57:44,461 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. [2018-09-18 09:57:44,461 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:26 [2018-09-18 09:57:44,494 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,495 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,496 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:57:44,506 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 51 [2018-09-18 09:57:44,507 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-09-18 09:57:44,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-09-18 09:57:44,549 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:34, output treesize:47 [2018-09-18 09:57:44,839 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-18 09:57:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:57:44,863 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:57:50,909 WARN L178 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 09:58:07,085 WARN L178 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-18 09:58:07,131 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 89 treesize of output 72 [2018-09-18 09:58:07,149 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,159 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 1 case distinctions, treesize of input 57 treesize of output 62 [2018-09-18 09:58:07,166 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,167 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,168 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 75 [2018-09-18 09:58:07,369 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-09-18 09:58:07,373 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,374 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,374 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,375 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,375 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,375 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,376 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,379 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,387 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,388 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 72 [2018-09-18 09:58:07,388 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:07,408 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,410 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,411 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,411 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,411 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,417 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 56 [2018-09-18 09:58:07,418 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:07,420 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,421 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,421 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,421 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,422 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,423 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,425 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,428 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 56 [2018-09-18 09:58:07,429 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:07,432 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,432 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,433 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,434 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,434 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,435 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,436 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,436 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,437 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,439 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,446 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,447 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 73 [2018-09-18 09:58:07,448 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:07,450 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,451 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,451 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,452 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,452 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,454 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,455 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,456 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,467 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,474 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 76 [2018-09-18 09:58:07,475 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:07,478 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,478 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,479 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,479 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,480 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,481 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,482 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,483 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,494 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,501 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 76 [2018-09-18 09:58:07,502 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:07,509 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,510 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,510 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,510 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,511 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,511 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,512 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,512 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,513 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,515 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,522 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,523 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 72 [2018-09-18 09:58:07,524 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:07,664 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,665 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,666 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,666 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,667 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,668 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,673 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,694 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 82 [2018-09-18 09:58:07,697 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 5 xjuncts. [2018-09-18 09:58:07,704 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,705 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,705 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,706 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,707 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,707 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,734 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 77 [2018-09-18 09:58:07,737 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 8 xjuncts. [2018-09-18 09:58:07,757 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,758 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,759 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,760 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,760 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,762 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,763 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,764 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,780 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:07,809 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 112 [2018-09-18 09:58:07,819 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 21 xjuncts. [2018-09-18 09:58:08,904 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 10 xjuncts. [2018-09-18 09:58:09,000 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-09-18 09:58:09,084 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-09-18 09:58:09,175 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-09-18 09:58:09,175 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 4 variables, input treesize:132, output treesize:114 [2018-09-18 09:58:09,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:09,192 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:58:09,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11, 12, 12] total 30 [2018-09-18 09:58:09,192 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:58:09,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 09:58:09,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 09:58:09,193 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=741, Unknown=9, NotChecked=0, Total=870 [2018-09-18 09:58:09,194 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 15 states. [2018-09-18 09:58:09,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:58:09,748 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2018-09-18 09:58:09,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 09:58:09,749 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-09-18 09:58:09,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:58:09,750 INFO L225 Difference]: With dead ends: 120 [2018-09-18 09:58:09,751 INFO L226 Difference]: Without dead ends: 103 [2018-09-18 09:58:09,752 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 92 SyntacticMatches, 13 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 23.1s TimeCoverageRelationStatistics Valid=252, Invalid=1299, Unknown=9, NotChecked=0, Total=1560 [2018-09-18 09:58:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-09-18 09:58:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 56. [2018-09-18 09:58:09,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-18 09:58:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2018-09-18 09:58:09,762 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 30 [2018-09-18 09:58:09,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:58:09,763 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2018-09-18 09:58:09,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 09:58:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2018-09-18 09:58:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-18 09:58:09,764 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:58:09,764 INFO L376 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:58:09,764 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:58:09,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1982187746, now seen corresponding path program 2 times [2018-09-18 09:58:09,765 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:58:09,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:09,766 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:58:09,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:09,766 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:58:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:58:10,150 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 8 [2018-09-18 09:58:10,295 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:10,295 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:10,295 INFO L197 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 [2018-09-18 09:58:10,304 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:58:10,304 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:58:10,320 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:58:10,320 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:10,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:10,374 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:58:10,375 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 14 treesize of output 19 [2018-09-18 09:58:10,376 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:10,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:58:10,387 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-09-18 09:58:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:10,515 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:10,766 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2018-09-18 09:58:10,769 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:10,771 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:10,771 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2018-09-18 09:58:10,772 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:10,909 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:10,945 INFO L303 Elim1Store]: Index analysis took 172 ms [2018-09-18 09:58:11,098 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 38 [2018-09-18 09:58:11,100 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-09-18 09:58:11,135 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,141 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2018-09-18 09:58:11,142 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:11,148 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,156 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2018-09-18 09:58:11,158 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:11,164 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,178 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 40 [2018-09-18 09:58:11,181 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-09-18 09:58:11,184 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,187 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,187 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2018-09-18 09:58:11,188 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,190 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,192 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2018-09-18 09:58:11,192 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,194 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,196 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:11,197 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2018-09-18 09:58:11,197 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,231 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:79, output treesize:3 [2018-09-18 09:58:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:11,267 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:11,268 INFO L197 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 [2018-09-18 09:58:11,283 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 09:58:11,283 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:58:11,325 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 09:58:11,325 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:11,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:11,334 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 8 treesize of output 7 [2018-09-18 09:58:11,334 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,344 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:7 [2018-09-18 09:58:11,348 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:58:11,351 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 14 treesize of output 19 [2018-09-18 09:58:11,351 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:11,363 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:58:11,364 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-09-18 09:58:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:11,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:58:13,437 WARN L979 $PredicateComparison]: unable to prove that (and (forall ((main_~key~0 Int)) (or (let ((.cse0 (store c_main_~v~0 (+ c_main_~i~0 1) main_~key~0))) (<= (select .cse0 1) (select .cse0 2))) (< main_~key~0 (select c_main_~v~0 c_main_~i~0)))) (or (<= 0 c_main_~i~0) (forall ((v_prenex_30 Int)) (let ((.cse1 (store c_main_~v~0 (+ c_main_~i~0 1) v_prenex_30))) (<= (select .cse1 1) (select .cse1 2)))))) is different from false [2018-09-18 09:58:17,488 WARN L979 $PredicateComparison]: unable to prove that (forall ((main_~key~0 Int)) (or (< main_~key~0 (select c_main_~v~0 c_main_~j~0)) (let ((.cse0 (store c_main_~v~0 (+ c_main_~j~0 1) main_~key~0))) (<= (select .cse0 1) (select .cse0 2))))) is different from false [2018-09-18 09:58:17,546 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 42 [2018-09-18 09:58:17,663 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2018-09-18 09:58:17,677 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,698 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 57 [2018-09-18 09:58:17,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 11 xjuncts. [2018-09-18 09:58:17,717 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 57 [2018-09-18 09:58:17,743 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 11 xjuncts. [2018-09-18 09:58:17,746 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,761 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 34 [2018-09-18 09:58:17,762 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-09-18 09:58:17,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-09-18 09:58:17,883 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 34 treesize of output 32 [2018-09-18 09:58:17,948 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,950 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,951 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,956 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2018-09-18 09:58:17,957 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:17,959 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,960 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,961 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,962 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,962 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 27 [2018-09-18 09:58:17,963 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:17,965 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,966 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,968 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,973 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 31 [2018-09-18 09:58:17,974 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:17,976 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,980 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,985 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 28 [2018-09-18 09:58:17,986 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:17,987 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,988 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 0 case distinctions, treesize of input 21 treesize of output 16 [2018-09-18 09:58:17,989 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:17,990 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:17,995 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:58:18,000 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 28 [2018-09-18 09:58:18,001 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-09-18 09:58:18,003 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:58:18,003 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:18,028 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:18,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:58:18,054 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:38, output treesize:11 [2018-09-18 09:58:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2018-09-18 09:58:18,073 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 09:58:18,073 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13, 11, 12] total 30 [2018-09-18 09:58:18,073 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 09:58:18,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-09-18 09:58:18,074 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-09-18 09:58:18,074 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=661, Unknown=2, NotChecked=106, Total=870 [2018-09-18 09:58:18,074 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand 21 states. [2018-09-18 09:58:18,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 09:58:18,557 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2018-09-18 09:58:18,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 09:58:18,557 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 34 [2018-09-18 09:58:18,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 09:58:18,559 INFO L225 Difference]: With dead ends: 85 [2018-09-18 09:58:18,559 INFO L226 Difference]: Without dead ends: 83 [2018-09-18 09:58:18,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 114 SyntacticMatches, 10 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=189, Invalid=1077, Unknown=2, NotChecked=138, Total=1406 [2018-09-18 09:58:18,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-09-18 09:58:18,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 72. [2018-09-18 09:58:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-18 09:58:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-09-18 09:58:18,574 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 34 [2018-09-18 09:58:18,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 09:58:18,575 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-09-18 09:58:18,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-09-18 09:58:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-09-18 09:58:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-18 09:58:18,577 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 09:58:18,577 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 09:58:18,577 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 09:58:18,578 INFO L82 PathProgramCache]: Analyzing trace with hash 539528911, now seen corresponding path program 5 times [2018-09-18 09:58:18,578 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 09:58:18,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:18,579 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 09:58:18,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 09:58:18,579 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 09:58:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 09:58:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:18,976 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:58:18,976 INFO L197 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 [2018-09-18 09:58:18,983 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-18 09:58:18,983 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:58:18,998 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-09-18 09:58:18,998 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:58:19,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:58:19,041 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:58:19,043 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 14 treesize of output 19 [2018-09-18 09:58:19,043 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,050 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,050 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-09-18 09:58:19,083 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:58:19,084 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:58:19,087 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 14 treesize of output 21 [2018-09-18 09:58:19,088 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,095 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-09-18 09:58:19,117 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-09-18 09:58:19,117 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,124 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-09-18 09:58:19,186 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2018-09-18 09:58:19,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:58:19,191 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:7 [2018-09-18 09:58:19,223 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:58:19,223 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:59:08,223 WARN L178 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-18 09:59:20,524 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 51 treesize of output 49 [2018-09-18 09:59:20,540 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 2 case distinctions, treesize of input 46 treesize of output 53 [2018-09-18 09:59:20,565 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,566 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 44 treesize of output 49 [2018-09-18 09:59:20,633 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,634 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,635 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,635 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,642 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,647 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 1 case distinctions, treesize of input 32 treesize of output 45 [2018-09-18 09:59:20,648 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,650 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:20,650 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,651 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:20,651 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,653 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,654 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,654 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,655 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,662 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,667 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 1 case distinctions, treesize of input 34 treesize of output 45 [2018-09-18 09:59:20,668 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,670 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,670 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,671 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,671 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,677 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,683 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 1 case distinctions, treesize of input 32 treesize of output 42 [2018-09-18 09:59:20,684 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,686 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,686 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,687 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:20,687 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2018-09-18 09:59:20,688 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,690 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,690 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,690 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,691 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,697 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,702 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 1 case distinctions, treesize of input 34 treesize of output 42 [2018-09-18 09:59:20,703 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,735 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,762 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,778 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 3 case distinctions, treesize of input 44 treesize of output 58 [2018-09-18 09:59:20,920 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2018-09-18 09:59:20,923 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,923 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,923 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,924 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,930 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,936 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 1 case distinctions, treesize of input 38 treesize of output 48 [2018-09-18 09:59:20,937 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,938 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:20,938 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,940 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,940 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,941 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,941 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,946 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,952 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 1 case distinctions, treesize of input 38 treesize of output 51 [2018-09-18 09:59:20,953 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,954 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:20,955 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,956 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:20,956 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:20,957 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,958 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,959 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,959 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,966 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,972 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 1 case distinctions, treesize of input 40 treesize of output 51 [2018-09-18 09:59:20,973 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:20,975 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,975 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,975 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,976 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,981 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:20,987 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 1 case distinctions, treesize of input 40 treesize of output 48 [2018-09-18 09:59:20,988 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,073 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,075 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,076 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,076 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,077 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,088 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,112 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 4 case distinctions, treesize of input 35 treesize of output 81 [2018-09-18 09:59:21,115 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 8 xjuncts. [2018-09-18 09:59:21,117 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,118 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,119 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,119 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,120 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,130 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 1 case distinctions, treesize of input 34 treesize of output 49 [2018-09-18 09:59:21,131 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,134 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,134 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,135 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,135 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,136 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:21,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 52 [2018-09-18 09:59:21,146 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,258 INFO L267 ElimStorePlain]: Start of recursive call 12: 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-09-18 09:59:21,305 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-09-18 09:59:21,333 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-09-18 09:59:21,376 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,378 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 53 treesize of output 56 [2018-09-18 09:59:21,381 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,435 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 74 [2018-09-18 09:59:21,461 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:21,461 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:21,569 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,570 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:21,576 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 0 case distinctions, treesize of input 50 treesize of output 55 [2018-09-18 09:59:21,648 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,649 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,651 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,651 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,657 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,663 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 1 case distinctions, treesize of input 32 treesize of output 42 [2018-09-18 09:59:21,663 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,673 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:21,673 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:21,675 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,675 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,677 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,678 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,683 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,689 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 1 case distinctions, treesize of input 32 treesize of output 45 [2018-09-18 09:59:21,690 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,692 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,693 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,695 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,701 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,713 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 34 treesize of output 50 [2018-09-18 09:59:21,715 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 3 xjuncts. [2018-09-18 09:59:21,717 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,718 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,720 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,725 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,737 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 34 treesize of output 47 [2018-09-18 09:59:21,738 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 3 xjuncts. [2018-09-18 09:59:21,741 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,742 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:21,742 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2018-09-18 09:59:21,742 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:21,743 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,744 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,745 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,747 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 26 treesize of output 25 [2018-09-18 09:59:21,748 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:21,787 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-09-18 09:59:21,826 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,832 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:21,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 79 [2018-09-18 09:59:22,134 WARN L178 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2018-09-18 09:59:22,138 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,138 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,141 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,143 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,144 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,156 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,178 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 4 case distinctions, treesize of input 48 treesize of output 87 [2018-09-18 09:59:22,182 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 9 xjuncts. [2018-09-18 09:59:22,211 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,212 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,212 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,212 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,213 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,213 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,219 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 0 case distinctions, treesize of input 45 treesize of output 50 [2018-09-18 09:59:22,220 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:22,222 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,223 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,223 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,223 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,224 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,224 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:22,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 53 [2018-09-18 09:59:22,228 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:22,231 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,231 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,234 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,235 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,236 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,236 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,248 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,265 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 85 [2018-09-18 09:59:22,269 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 6 xjuncts. [2018-09-18 09:59:22,271 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,271 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,274 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,276 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,277 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,288 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,308 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 4 case distinctions, treesize of input 48 treesize of output 90 [2018-09-18 09:59:22,313 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 9 xjuncts. [2018-09-18 09:59:22,314 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,315 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,315 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,315 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,316 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,317 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:22,318 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,323 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,324 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 0 case distinctions, treesize of input 45 treesize of output 67 [2018-09-18 09:59:22,324 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:22,327 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,327 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,329 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,329 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,329 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,330 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,342 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,357 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 82 [2018-09-18 09:59:22,360 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 6 xjuncts. [2018-09-18 09:59:22,710 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,718 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,719 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,720 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 95 [2018-09-18 09:59:22,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-09-18 09:59:22,769 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 16 xjuncts. [2018-09-18 09:59:22,780 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,787 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,788 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,789 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:22,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 80 [2018-09-18 09:59:22,824 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 4 xjuncts. [2018-09-18 09:59:22,827 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,831 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,837 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,838 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,838 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,839 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,840 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,858 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:22,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 120 [2018-09-18 09:59:22,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-09-18 09:59:22,913 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 27 xjuncts. [2018-09-18 09:59:23,376 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,377 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,378 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,387 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,394 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 1 case distinctions, treesize of input 38 treesize of output 51 [2018-09-18 09:59:23,395 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2018-09-18 09:59:23,398 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,398 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,399 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-09-18 09:59:23,404 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:23,407 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,407 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,408 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:23,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-09-18 09:59:23,408 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:23,540 INFO L267 ElimStorePlain]: Start of recursive call 34: 3 dim-1 vars, End of recursive call: and 10 xjuncts. [2018-09-18 09:59:23,692 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,693 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,694 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,699 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 49 treesize of output 64 [2018-09-18 09:59:23,802 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-09-18 09:59:23,802 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:23,807 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,808 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,813 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,816 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,817 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,832 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,861 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 79 [2018-09-18 09:59:23,866 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 9 xjuncts. [2018-09-18 09:59:23,894 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,906 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,943 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,956 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,968 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,981 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:23,984 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,008 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,009 INFO L303 Elim1Store]: Index analysis took 142 ms [2018-09-18 09:59:24,024 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 2 case distinctions, treesize of input 37 treesize of output 66 [2018-09-18 09:59:24,025 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 4 xjuncts. [2018-09-18 09:59:24,027 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,027 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,030 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,031 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,032 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,044 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,067 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 76 [2018-09-18 09:59:24,071 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 9 xjuncts. [2018-09-18 09:59:24,073 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,073 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,074 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,074 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,074 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,075 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2018-09-18 09:59:24,080 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:24,082 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,083 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,084 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,084 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,090 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-09-18 09:59:24,090 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:24,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,092 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,093 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,094 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,095 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,096 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,107 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:24,119 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 2 case distinctions, treesize of input 37 treesize of output 69 [2018-09-18 09:59:24,121 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 4 xjuncts. [2018-09-18 09:59:24,215 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-09-18 09:59:24,284 INFO L267 ElimStorePlain]: Start of recursive call 24: 4 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-09-18 09:59:24,328 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-09-18 09:59:24,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-09-18 09:59:24,387 INFO L202 ElimStorePlain]: Needed 55 recursive calls to eliminate 8 variables, input treesize:105, output treesize:67 [2018-09-18 09:59:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 28 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:59:24,462 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 09:59:24,462 INFO L197 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 [2018-09-18 09:59:24,478 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-09-18 09:59:24,478 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder INSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 09:59:24,569 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-09-18 09:59:24,569 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 09:59:24,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 09:59:24,610 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,612 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 14 treesize of output 19 [2018-09-18 09:59:24,613 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:24,621 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-18 09:59:24,621 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-09-18 09:59:24,737 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,738 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,739 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:24,744 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 16 treesize of output 31 [2018-09-18 09:59:24,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:24,765 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-18 09:59:24,765 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:32, output treesize:19 [2018-09-18 09:59:26,852 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,853 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,854 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,855 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,856 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,857 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,866 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 47 [2018-09-18 09:59:26,867 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-09-18 09:59:26,891 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. [2018-09-18 09:59:26,891 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-09-18 09:59:26,946 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,947 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,948 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,951 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,953 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,956 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,958 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,959 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 09:59:26,996 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 25 treesize of output 86 [2018-09-18 09:59:26,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2018-09-18 09:59:27,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-09-18 09:59:27,103 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:41, output treesize:43 [2018-09-18 09:59:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 09:59:27,135 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 09:59:50,134 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,136 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 90 treesize of output 83 [2018-09-18 09:59:50,172 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 83 [2018-09-18 09:59:50,216 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,216 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 89 [2018-09-18 09:59:50,494 WARN L178 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2018-09-18 09:59:50,498 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,499 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,501 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 100 [2018-09-18 09:59:50,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-09-18 09:59:50,571 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 64 xjuncts. [2018-09-18 09:59:50,616 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,620 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 42 treesize of output 100 [2018-09-18 09:59:50,675 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-09-18 09:59:50,708 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 128 xjuncts. [2018-09-18 09:59:50,741 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,744 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,747 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,754 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,775 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:50,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 50 treesize of output 133 [2018-09-18 09:59:50,829 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 09:59:51,011 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 156 xjuncts. [2018-09-18 09:59:51,062 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,082 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,085 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,093 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,116 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,116 INFO L303 Elim1Store]: Index analysis took 104 ms [2018-09-18 09:59:51,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 50 treesize of output 131 [2018-09-18 09:59:51,167 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 09:59:51,364 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 156 xjuncts. [2018-09-18 09:59:51,396 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,399 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,403 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,440 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 48 treesize of output 131 [2018-09-18 09:59:51,493 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 09:59:51,631 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 156 xjuncts. [2018-09-18 09:59:51,655 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,658 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,661 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,669 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,697 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 48 treesize of output 133 [2018-09-18 09:59:51,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 09:59:51,927 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 156 xjuncts. [2018-09-18 09:59:51,976 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:51,989 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:52,001 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:52,026 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:52,108 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:52,220 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 09:59:52,221 INFO L303 Elim1Store]: Index analysis took 293 ms [2018-09-18 09:59:52,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 129 [2018-09-18 09:59:52,268 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-09-18 09:59:52,337 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 123 xjuncts. [2018-09-18 10:00:15,701 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,701 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,703 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,704 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,704 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,719 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,742 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 44 treesize of output 90 [2018-09-18 10:00:15,747 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 9 xjuncts. [2018-09-18 10:00:15,748 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,749 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,750 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,751 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,751 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,766 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,787 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 92 [2018-09-18 10:00:15,792 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 9 xjuncts. [2018-09-18 10:00:15,794 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,794 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,796 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:15,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 67 [2018-09-18 10:00:15,823 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 8 xjuncts. [2018-09-18 10:00:16,194 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,212 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 46 [2018-09-18 10:00:16,214 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-09-18 10:00:16,216 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,217 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,219 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,229 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 61 [2018-09-18 10:00:16,243 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 3 xjuncts. [2018-09-18 10:00:16,248 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,248 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 43 [2018-09-18 10:00:16,258 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-09-18 10:00:16,457 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 11 xjuncts. [2018-09-18 10:00:16,656 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,662 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:16,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 115 [2018-09-18 10:00:19,206 WARN L178 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 742 DAG size of output: 463 [2018-09-18 10:00:19,213 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,214 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,215 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,217 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,219 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,220 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,222 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,222 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,241 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,273 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 119 [2018-09-18 10:00:19,282 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 22 xjuncts. [2018-09-18 10:00:19,285 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,286 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,288 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,288 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,289 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,326 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 95 [2018-09-18 10:00:19,330 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 16 xjuncts. [2018-09-18 10:00:19,333 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,334 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,334 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,336 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,338 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,339 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,341 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,342 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,360 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,392 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 120 [2018-09-18 10:00:19,400 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 22 xjuncts. [2018-09-18 10:00:19,403 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,404 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,405 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,407 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,409 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,409 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,412 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,431 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,464 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 119 [2018-09-18 10:00:19,473 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 22 xjuncts. [2018-09-18 10:00:19,482 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,483 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,483 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,484 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,486 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,487 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,489 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,490 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,509 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,540 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 53 treesize of output 121 [2018-09-18 10:00:19,549 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 22 xjuncts. [2018-09-18 10:00:19,581 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,582 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,583 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,584 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,627 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 50 treesize of output 103 [2018-09-18 10:00:19,634 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 32 xjuncts. [2018-09-18 10:00:19,637 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,638 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,638 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,648 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,649 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,650 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,651 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,652 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,670 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:19,702 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 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 121 [2018-09-18 10:00:19,710 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 22 xjuncts. [2018-09-18 10:00:27,524 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,524 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,525 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,526 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,530 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,531 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,543 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:27,552 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 129 [2018-09-18 10:00:27,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-09-18 10:00:27,593 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 9 xjuncts. [2018-09-18 10:00:27,595 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,596 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,596 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,596 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,600 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,609 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:27,632 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 91 [2018-09-18 10:00:27,634 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 4 xjuncts. [2018-09-18 10:00:27,636 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,636 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,637 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,639 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:27,648 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:27,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 56 treesize of output 94 [2018-09-18 10:00:27,680 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 8 xjuncts. [2018-09-18 10:00:30,998 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,000 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,002 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,006 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,014 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,018 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,025 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:31,044 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 57 treesize of output 154 [2018-09-18 10:00:31,112 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2018-09-18 10:00:31,131 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 30 xjuncts. [2018-09-18 10:00:31,198 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,233 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,238 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,247 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:31,258 INFO L303 Elim1Store]: Index analysis took 126 ms [2018-09-18 10:00:31,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 114 [2018-09-18 10:00:31,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-09-18 10:00:31,315 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 16 xjuncts. [2018-09-18 10:00:31,318 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,321 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:31,335 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:31,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 121 [2018-09-18 10:00:31,405 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 10:00:31,411 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 32 xjuncts. [2018-09-18 10:00:36,303 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,304 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,305 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 70 [2018-09-18 10:00:36,330 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 8 xjuncts. [2018-09-18 10:00:36,332 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,332 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,333 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,333 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,353 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 67 [2018-09-18 10:00:36,354 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 4 xjuncts. [2018-09-18 10:00:36,356 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,357 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,358 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,358 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,362 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,374 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:36,398 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 95 [2018-09-18 10:00:36,402 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 9 xjuncts. [2018-09-18 10:00:38,199 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,200 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,207 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:38,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 95 [2018-09-18 10:00:38,251 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-09-18 10:00:38,254 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 16 xjuncts. [2018-09-18 10:00:38,258 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,260 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,262 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,266 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,269 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,274 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,283 INFO L700 Elim1Store]: detected not equals via solver [2018-09-18 10:00:38,303 INFO L682 Elim1Store]: detected equality via solver [2018-09-18 10:00:38,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 56 treesize of output 175 [2018-09-18 10:00:38,384 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 10:00:38,893 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 384 xjuncts. Received shutdown request... [2018-09-18 10:00:43,594 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 10:00:43,795 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:00:43,796 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 10:00:43,800 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 10:00:43,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 10:00:43 BoogieIcfgContainer [2018-09-18 10:00:43,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 10:00:43,801 INFO L168 Benchmark]: Toolchain (without parser) took 271020.39 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -720.3 MB). Peak memory consumption was 816.2 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:43,802 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:00:43,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:43,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:00:43,802 INFO L168 Benchmark]: Boogie Preprocessor took 23.52 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. [2018-09-18 10:00:43,802 INFO L168 Benchmark]: RCFGBuilder took 603.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:43,803 INFO L168 Benchmark]: TraceAbstraction took 270030.63 ms. Allocated memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: -28.3 MB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 858.2 MB. Max. memory is 7.1 GB. [2018-09-18 10:00:43,804 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.52 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 603.44 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -780.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 270030.63 ms. Allocated memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: -28.3 MB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 49.4 MB). Peak memory consumption was 858.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 5]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 5). Cancelled while BasicCegarLoop was analyzing trace of length 35 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while SimplifyDDAWithTimeout was simplifying term of DAG size 618. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. TIMEOUT Result, 269.9s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 5.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 261 SDtfs, 402 SDslu, 1488 SDs, 0 SdLazy, 1430 SolverSat, 243 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1013 GetRequests, 691 SyntacticMatches, 82 SemanticMatches, 240 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2472 ImplicationChecksByTransitivity, 104.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 242 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 117.3s InterpolantComputationTime, 675 NumberOfCodeBlocks, 675 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1065 ConstructedInterpolants, 73 QuantifiedInterpolants, 266080 SizeOfPredicates, 128 NumberOfNonLiveVariables, 862 ConjunctsInSsa, 298 ConjunctsInUnsatCore, 42 InterpolantComputations, 2 PerfectInterpolantSequences, 47/430 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/insertion_sort_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-00-43-812.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/insertion_sort_true-unreach-call_true-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_10-00-43-812.csv Completed graceful shutdown