java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/loops/insertion_sort_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 18:06:14,743 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 18:06:14,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 18:06:14,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 18:06:14,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 18:06:14,765 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 18:06:14,767 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 18:06:14,769 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 18:06:14,772 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 18:06:14,773 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 18:06:14,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 18:06:14,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 18:06:14,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 18:06:14,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 18:06:14,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 18:06:14,782 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 18:06:14,783 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 18:06:14,786 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 18:06:14,794 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 18:06:14,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 18:06:14,800 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 18:06:14,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 18:06:14,807 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 18:06:14,820 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 18:06:14,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 18:06:14,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 18:06:14,847 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 18:06:14,847 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 18:06:14,850 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 18:06:14,850 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 18:06:14,850 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 18:06:14,851 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 18:06:14,851 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 18:06:14,851 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 18:06:14,851 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 18:06:14,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 18:06:14,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 18:06:14,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 18:06:14,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 18:06:14,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 18:06:14,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 18:06:14,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 18:06:14,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 18:06:14,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 18:06:14,854 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 18:06:14,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 18:06:14,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 18:06:14,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:06:14,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 18:06:14,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 18:06:14,858 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 18:06:14,858 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 18:06:14,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 18:06:14,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 18:06:14,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 18:06:14,929 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 18:06:14,929 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 18:06:14,930 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/insertion_sort_false-unreach-call_true-termination.i [2018-07-23 18:06:15,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85f39e20/8243d935ce9e416e91a5f38c682a157d/FLAG0f4ab775d [2018-07-23 18:06:15,421 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 18:06:15,422 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/insertion_sort_false-unreach-call_true-termination.i [2018-07-23 18:06:15,428 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85f39e20/8243d935ce9e416e91a5f38c682a157d/FLAG0f4ab775d [2018-07-23 18:06:15,443 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e85f39e20/8243d935ce9e416e91a5f38c682a157d [2018-07-23 18:06:15,453 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 18:06:15,454 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 18:06:15,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 18:06:15,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 18:06:15,465 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 18:06:15,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f06eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15, skipping insertion in model container [2018-07-23 18:06:15,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,649 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 18:06:15,695 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:06:15,711 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 18:06:15,720 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:06:15,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15 WrapperNode [2018-07-23 18:06:15,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 18:06:15,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 18:06:15,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 18:06:15,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 18:06:15,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 18:06:15,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 18:06:15,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 18:06:15,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 18:06:15,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... [2018-07-23 18:06:15,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 18:06:15,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 18:06:15,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 18:06:15,785 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 18:06:15,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:06:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 18:06:15,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assert [2018-07-23 18:06:15,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 18:06:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 18:06:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 18:06:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 18:06:15,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 18:06:15,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 18:06:16,316 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 18:06:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:06:16 BoogieIcfgContainer [2018-07-23 18:06:16,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 18:06:16,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 18:06:16,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 18:06:16,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 18:06:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:06:15" (1/3) ... [2018-07-23 18:06:16,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ceab293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:06:16, skipping insertion in model container [2018-07-23 18:06:16,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:06:15" (2/3) ... [2018-07-23 18:06:16,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ceab293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:06:16, skipping insertion in model container [2018-07-23 18:06:16,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:06:16" (3/3) ... [2018-07-23 18:06:16,325 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort_false-unreach-call_true-termination.i [2018-07-23 18:06:16,335 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 18:06:16,344 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 18:06:16,393 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 18:06:16,393 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 18:06:16,393 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 18:06:16,394 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 18:06:16,394 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 18:06:16,394 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 18:06:16,394 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 18:06:16,394 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 18:06:16,394 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 18:06:16,412 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-07-23 18:06:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 18:06:16,419 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:16,420 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:06:16,420 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:16,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1945831271, now seen corresponding path program 1 times [2018-07-23 18:06:16,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:16,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:16,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:16,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:16,480 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:16,535 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:06:16,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-23 18:06:16,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:06:16,539 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-23 18:06:16,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-23 18:06:16,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 18:06:16,553 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-07-23 18:06:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:06:16,575 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2018-07-23 18:06:16,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-23 18:06:16,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-07-23 18:06:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:06:16,588 INFO L225 Difference]: With dead ends: 53 [2018-07-23 18:06:16,589 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 18:06:16,598 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-23 18:06:16,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 18:06:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 18:06:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 18:06:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-07-23 18:06:16,636 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 13 [2018-07-23 18:06:16,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:06:16,637 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-07-23 18:06:16,637 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-23 18:06:16,637 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-07-23 18:06:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 18:06:16,638 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:16,638 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:06:16,639 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash 170366983, now seen corresponding path program 1 times [2018-07-23 18:06:16,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:16,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:16,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:16,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:16,641 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:16,840 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:06:16,840 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 18:06:16,841 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:06:16,843 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 18:06:16,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 18:06:16,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 18:06:16,844 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 5 states. [2018-07-23 18:06:17,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:06:17,009 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-07-23 18:06:17,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 18:06:17,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-07-23 18:06:17,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:06:17,010 INFO L225 Difference]: With dead ends: 45 [2018-07-23 18:06:17,011 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 18:06:17,012 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-07-23 18:06:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 18:06:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2018-07-23 18:06:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 18:06:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-07-23 18:06:17,020 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 14 [2018-07-23 18:06:17,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:06:17,021 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-07-23 18:06:17,021 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 18:06:17,021 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-07-23 18:06:17,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 18:06:17,022 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:17,022 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:06:17,022 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:17,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1811404188, now seen corresponding path program 1 times [2018-07-23 18:06:17,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:17,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:17,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:17,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:17,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:17,511 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2018-07-23 18:06:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:17,599 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:17,600 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:06:17,601 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-07-23 18:06:17,603 INFO L201 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [22], [24], [28], [32], [45], [47], [51], [55], [60], [69], [70], [71], [73] [2018-07-23 18:06:17,650 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:06:17,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:06:17,754 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:06:18,058 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-23 18:06:18,060 INFO L272 AbstractInterpreter]: Visited 19 different actions 117 times. Merged at 10 different actions 70 times. Widened at 3 different actions 9 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-07-23 18:06:18,099 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-23 18:06:18,099 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:18,100 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:06:18,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:18,113 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:06:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:18,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:18,372 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-07-23 18:06:18,409 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:18,418 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 [2018-07-23 18:06:18,419 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:18,475 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. [2018-07-23 18:06:18,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-07-23 18:06:18,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:18,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:19,346 WARN L169 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2018-07-23 18:06:19,353 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,354 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 [2018-07-23 18:06:19,356 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,360 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 [2018-07-23 18:06:19,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,363 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 [2018-07-23 18:06:19,364 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,414 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,422 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 [2018-07-23 18:06:19,425 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:19,435 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,436 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:3 [2018-07-23 18:06:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:19,482 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:19,482 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:06:19,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:19,503 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:06:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:19,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:19,630 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:19,635 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 22 treesize of output 19 [2018-07-23 18:06:19,636 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:06:19,654 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:28, output treesize:16 [2018-07-23 18:06:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:19,679 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:19,846 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2018-07-23 18:06:19,850 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,851 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 11 treesize of output 10 [2018-07-23 18:06:19,852 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:19,866 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,867 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,909 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,918 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:19,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 41 [2018-07-23 18:06:19,962 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:20,035 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:20,036 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:5 [2018-07-23 18:06:20,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:20,052 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:06:20,052 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 19 [2018-07-23 18:06:20,052 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:06:20,053 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 18:06:20,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 18:06:20,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-07-23 18:06:20,055 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 13 states. [2018-07-23 18:06:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:06:20,464 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2018-07-23 18:06:20,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 18:06:20,465 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-07-23 18:06:20,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:06:20,469 INFO L225 Difference]: With dead ends: 82 [2018-07-23 18:06:20,469 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 18:06:20,470 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 63 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2018-07-23 18:06:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 18:06:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2018-07-23 18:06:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 18:06:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2018-07-23 18:06:20,483 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 20 [2018-07-23 18:06:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:06:20,484 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-07-23 18:06:20,484 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 18:06:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2018-07-23 18:06:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 18:06:20,485 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:20,486 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:06:20,486 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:20,486 INFO L82 PathProgramCache]: Analyzing trace with hash 142975282, now seen corresponding path program 1 times [2018-07-23 18:06:20,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:20,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:20,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:20,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:20,488 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:20,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:20,928 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:20,928 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:06:20,928 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-07-23 18:06:20,929 INFO L201 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [22], [24], [28], [32], [34], [37], [41], [45], [47], [51], [55], [60], [69], [70], [71], [73] [2018-07-23 18:06:20,930 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:06:20,931 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:06:20,935 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:06:21,063 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-23 18:06:21,064 INFO L272 AbstractInterpreter]: Visited 22 different actions 171 times. Merged at 13 different actions 109 times. Widened at 4 different actions 14 times. Found 14 fixpoints after 5 different actions. Largest state had 8 variables. [2018-07-23 18:06:21,088 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-23 18:06:21,089 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:21,089 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:06:21,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:21,097 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:06:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:21,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:21,201 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:21,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-07-23 18:06:21,202 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:21,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:21,218 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:21 [2018-07-23 18:06:21,311 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:21,317 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:21,319 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 [2018-07-23 18:06:21,320 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:21,343 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. [2018-07-23 18:06:21,343 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2018-07-23 18:06:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:21,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:21,828 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,830 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 [2018-07-23 18:06:21,906 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,907 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,908 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,909 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,915 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,924 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 [2018-07-23 18:06:21,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:21,934 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,935 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,936 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,937 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,944 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,945 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 [2018-07-23 18:06:21,947 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:21,950 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,951 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,951 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:21,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-07-23 18:06:21,958 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:21,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,000 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:38, output treesize:8 [2018-07-23 18:06:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:22,064 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:22,064 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:06:22,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:22,081 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:06:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:22,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:22,209 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:22,210 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 [2018-07-23 18:06:22,211 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,232 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:21 [2018-07-23 18:06:22,240 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:22,242 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:22,243 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 [2018-07-23 18:06:22,245 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,265 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. [2018-07-23 18:06:22,265 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:22 [2018-07-23 18:06:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:22,303 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:22,355 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,357 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 [2018-07-23 18:06:22,483 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2018-07-23 18:06:22,486 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,487 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,487 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,491 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 [2018-07-23 18:06:22,493 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,500 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:06:22,500 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,515 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,516 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,517 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,518 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:22,518 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:22,520 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 28 treesize of output 39 [2018-07-23 18:06:22,522 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,535 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,542 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:22,543 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:41, output treesize:11 [2018-07-23 18:06:22,599 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:22,601 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:06:22,601 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11, 11, 11] total 28 [2018-07-23 18:06:22,601 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:06:22,602 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 18:06:22,603 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 18:06:22,604 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2018-07-23 18:06:22,604 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 17 states. [2018-07-23 18:06:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:06:23,203 INFO L93 Difference]: Finished difference Result 89 states and 104 transitions. [2018-07-23 18:06:23,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 18:06:23,203 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 24 [2018-07-23 18:06:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:06:23,207 INFO L225 Difference]: With dead ends: 89 [2018-07-23 18:06:23,208 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 18:06:23,209 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 71 SyntacticMatches, 10 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2018-07-23 18:06:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 18:06:23,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 44. [2018-07-23 18:06:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 18:06:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2018-07-23 18:06:23,217 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 24 [2018-07-23 18:06:23,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:06:23,218 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2018-07-23 18:06:23,218 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 18:06:23,218 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2018-07-23 18:06:23,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 18:06:23,220 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:23,220 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:06:23,221 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:23,221 INFO L82 PathProgramCache]: Analyzing trace with hash -672739471, now seen corresponding path program 2 times [2018-07-23 18:06:23,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:23,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:23,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:23,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:23,222 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:23,512 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:23,512 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:06:23,512 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:06:23,512 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:06:23,512 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:23,512 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:06:23,521 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:06:23,521 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:06:23,537 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:06:23,537 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:06:23,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:23,697 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:23,703 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 [2018-07-23 18:06:23,705 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:23,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:23,728 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:16 [2018-07-23 18:06:23,851 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:23,852 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:23,853 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:23,856 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 [2018-07-23 18:06:23,857 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:23,869 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. [2018-07-23 18:06:23,870 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:14 [2018-07-23 18:06:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:23,913 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:30,113 WARN L1010 $PredicateComparison]: unable to prove that (forall ((main_~key~0 Int)) (let ((.cse0 (store c_main_~v~0 c_main_~j~0 main_~key~0))) (<= (select .cse0 0) (select .cse0 1)))) is different from false [2018-07-23 18:06:38,452 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 [2018-07-23 18:06:38,564 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2018-07-23 18:06:38,567 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,568 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 [2018-07-23 18:06:38,568 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,571 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,572 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 [2018-07-23 18:06:38,573 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,575 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,576 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 [2018-07-23 18:06:38,577 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,580 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 [2018-07-23 18:06:38,580 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,582 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,583 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 [2018-07-23 18:06:38,584 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,586 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 [2018-07-23 18:06:38,587 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,589 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,590 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 [2018-07-23 18:06:38,590 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,604 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,610 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 [2018-07-23 18:06:38,741 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2018-07-23 18:06:38,758 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,759 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,761 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,768 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,777 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 [2018-07-23 18:06:38,779 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:38,795 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,796 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,797 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,801 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 [2018-07-23 18:06:38,802 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,809 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,809 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,811 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,818 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,825 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 [2018-07-23 18:06:38,828 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:38,833 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,838 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 [2018-07-23 18:06:38,839 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,846 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,847 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,848 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,851 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 [2018-07-23 18:06:38,853 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:38,860 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,861 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,864 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,872 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,887 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 [2018-07-23 18:06:38,892 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:38,928 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:38,943 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:39,000 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:39,024 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:39,024 INFO L303 Elim1Store]: Index analysis took 131 ms [2018-07-23 18:06:39,041 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 [2018-07-23 18:06:39,045 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:39,087 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,092 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 4 variables, input treesize:69, output treesize:5 [2018-07-23 18:06:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2018-07-23 18:06:39,121 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:39,121 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:06:39,139 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:06:39,140 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:06:39,172 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:06:39,172 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:06:39,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:39,211 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:39,213 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 [2018-07-23 18:06:39,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,225 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-07-23 18:06:39,277 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:39,279 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:06:39,285 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 [2018-07-23 18:06:39,286 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,298 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:06:39,298 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-07-23 18:06:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:39,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:06:57,247 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 [2018-07-23 18:06:57,348 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,355 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,362 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 [2018-07-23 18:06:57,364 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,366 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,374 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,421 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 23 treesize of output 29 [2018-07-23 18:06:57,422 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,427 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,436 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,442 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 [2018-07-23 18:06:57,444 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,470 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,479 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 20 treesize of output 15 [2018-07-23 18:06:57,480 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-23 18:06:57,486 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,494 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,505 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 [2018-07-23 18:06:57,506 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,512 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,519 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-07-23 18:06:57,528 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,540 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 23 treesize of output 23 [2018-07-23 18:06:57,541 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-07-23 18:06:57,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:06:57,730 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,731 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 [2018-07-23 18:06:57,816 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-07-23 18:06:57,836 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:57,838 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,838 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,841 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,848 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,872 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 [2018-07-23 18:06:57,875 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:57,892 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,893 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,895 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,901 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,913 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 [2018-07-23 18:06:57,917 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:57,941 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,971 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 [2018-07-23 18:06:57,974 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:57,977 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,978 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,980 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:57,987 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,005 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 [2018-07-23 18:06:58,008 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:58,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,010 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,012 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,019 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,085 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 [2018-07-23 18:06:58,087 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:58,089 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,089 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,092 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,100 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:06:58,114 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 [2018-07-23 18:06:58,118 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-23 18:06:58,244 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:06:58,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-07-23 18:06:58,306 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:71, output treesize:33 [2018-07-23 18:06:58,375 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:58,377 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:06:58,377 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12] total 29 [2018-07-23 18:06:58,377 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:06:58,378 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 18:06:58,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 18:06:58,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=635, Unknown=10, NotChecked=52, Total=812 [2018-07-23 18:06:58,379 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 17 states. [2018-07-23 18:06:59,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:06:59,122 INFO L93 Difference]: Finished difference Result 127 states and 151 transitions. [2018-07-23 18:06:59,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 18:06:59,122 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 26 [2018-07-23 18:06:59,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:06:59,125 INFO L225 Difference]: With dead ends: 127 [2018-07-23 18:06:59,125 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 18:06:59,126 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 74 SyntacticMatches, 14 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=235, Invalid=1091, Unknown=10, NotChecked=70, Total=1406 [2018-07-23 18:06:59,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 18:06:59,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 57. [2018-07-23 18:06:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 18:06:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2018-07-23 18:06:59,139 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 26 [2018-07-23 18:06:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:06:59,139 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2018-07-23 18:06:59,139 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 18:06:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2018-07-23 18:06:59,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 18:06:59,140 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:06:59,140 INFO L353 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] [2018-07-23 18:06:59,140 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:06:59,141 INFO L82 PathProgramCache]: Analyzing trace with hash -422272113, now seen corresponding path program 1 times [2018-07-23 18:06:59,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:06:59,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:59,141 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 18:06:59,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:06:59,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:06:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:59,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:59,397 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:59,397 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:06:59,398 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-07-23 18:06:59,398 INFO L201 CegarAbsIntRunner]: [0], [3], [5], [8], [10], [11], [15], [19], [22], [24], [28], [32], [45], [47], [51], [55], [60], [63], [69], [70], [71], [73], [74] [2018-07-23 18:06:59,400 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:06:59,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:06:59,405 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:06:59,544 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-23 18:06:59,544 INFO L272 AbstractInterpreter]: Visited 23 different actions 229 times. Merged at 12 different actions 109 times. Widened at 4 different actions 17 times. Found 9 fixpoints after 3 different actions. Largest state had 9 variables. [2018-07-23 18:06:59,582 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-23 18:06:59,582 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:06:59,582 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:06:59,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:06:59,595 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:06:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:06:59,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:06:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:06:59,720 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:02,202 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:02,202 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:07:02,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:07:02,217 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:07:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:02,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:02,305 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:02,305 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:02,373 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:07:02,374 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7] total 11 [2018-07-23 18:07:02,374 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:07:02,374 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 18:07:02,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 18:07:02,375 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=82, Unknown=1, NotChecked=0, Total=110 [2018-07-23 18:07:02,375 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 9 states. [2018-07-23 18:07:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:07:02,542 INFO L93 Difference]: Finished difference Result 82 states and 94 transitions. [2018-07-23 18:07:02,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:07:02,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-07-23 18:07:02,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:07:02,544 INFO L225 Difference]: With dead ends: 82 [2018-07-23 18:07:02,544 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 18:07:02,545 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 96 SyntacticMatches, 13 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=49, Invalid=132, Unknown=1, NotChecked=0, Total=182 [2018-07-23 18:07:02,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 18:07:02,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 57. [2018-07-23 18:07:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 18:07:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-07-23 18:07:02,553 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 28 [2018-07-23 18:07:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:07:02,553 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-07-23 18:07:02,553 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 18:07:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-07-23 18:07:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 18:07:02,554 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:07:02,554 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:07:02,554 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:07:02,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1911969657, now seen corresponding path program 2 times [2018-07-23 18:07:02,555 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:07:02,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:02,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:07:02,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:02,556 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:07:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:02,829 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:02,829 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:07:02,829 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:07:02,829 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:07:02,829 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:02,830 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:07:02,837 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:07:02,838 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:07:02,852 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:07:02,853 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:07:02,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:02,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-07-23 18:07:02,904 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:02,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:02,908 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:7 [2018-07-23 18:07:02,937 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:02,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:03,073 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:03,074 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 [2018-07-23 18:07:03,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,081 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:03,082 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 [2018-07-23 18:07:03,082 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,084 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 [2018-07-23 18:07:03,084 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,114 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:03,119 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 [2018-07-23 18:07:03,120 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:03,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,125 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:45, output treesize:3 [2018-07-23 18:07:03,131 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:03,151 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:03,151 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:07:03,167 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:07:03,167 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:07:03,204 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:07:03,204 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:07:03,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:03,226 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 [2018-07-23 18:07:03,226 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,235 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:7 [2018-07-23 18:07:03,260 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:03,261 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 [2018-07-23 18:07:03,261 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-07-23 18:07:03,378 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:03,378 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:03,380 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 [2018-07-23 18:07:03,380 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:03,400 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:15 [2018-07-23 18:07:03,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:03,584 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (11)] Exception during sending of exit command (exit): Broken pipe [2018-07-23 18:07:03,704 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-23 18:07:03,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 11, 11, 13] total 25 [2018-07-23 18:07:03,704 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:07:03,705 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 18:07:03,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 18:07:03,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2018-07-23 18:07:03,706 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 10 states. [2018-07-23 18:07:04,323 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-07-23 18:07:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:07:04,443 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-07-23 18:07:04,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 18:07:04,444 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-07-23 18:07:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:07:04,446 INFO L225 Difference]: With dead ends: 89 [2018-07-23 18:07:04,446 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 18:07:04,447 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 100 SyntacticMatches, 10 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 18:07:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 18:07:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 68. [2018-07-23 18:07:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 18:07:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2018-07-23 18:07:04,456 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 30 [2018-07-23 18:07:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:07:04,456 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2018-07-23 18:07:04,456 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 18:07:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2018-07-23 18:07:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 18:07:04,458 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:07:04,458 INFO L353 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] [2018-07-23 18:07:04,458 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:07:04,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1907030116, now seen corresponding path program 2 times [2018-07-23 18:07:04,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:07:04,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:04,459 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 18:07:04,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:04,459 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:07:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:04,825 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:04,825 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:07:04,825 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:07:04,825 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:07:04,825 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:04,825 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:07:04,832 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:07:04,833 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:07:04,869 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:07:04,870 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:07:04,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:04,975 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:04,977 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 [2018-07-23 18:07:04,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:04,987 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. [2018-07-23 18:07:04,987 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-07-23 18:07:05,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:05,085 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:05,345 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2018-07-23 18:07:05,352 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,354 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 [2018-07-23 18:07:05,354 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,356 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,361 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 [2018-07-23 18:07:05,362 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,369 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,384 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 [2018-07-23 18:07:05,388 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-07-23 18:07:05,401 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,409 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 [2018-07-23 18:07:05,410 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:05,417 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,431 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 [2018-07-23 18:07:05,434 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-07-23 18:07:05,436 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,438 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,438 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 [2018-07-23 18:07:05,439 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,466 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,481 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,482 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 [2018-07-23 18:07:05,483 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,489 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:05,497 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 [2018-07-23 18:07:05,499 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:05,533 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,533 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:79, output treesize:3 [2018-07-23 18:07:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:05,574 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:05,574 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:07:05,590 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:07:05,590 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:07:05,638 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:07:05,638 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:07:05,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:05,653 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 [2018-07-23 18:07:05,654 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,663 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,663 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:7 [2018-07-23 18:07:05,670 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:05,671 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 [2018-07-23 18:07:05,671 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:05,685 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. [2018-07-23 18:07:05,685 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:20, output treesize:16 [2018-07-23 18:07:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:05,729 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:11,832 WARN L169 SmtUtils]: Spent 6.02 s on a formula simplification. DAG size of input: 24 DAG size of output: 14 [2018-07-23 18:07:13,910 WARN L1010 $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 [2018-07-23 18:07:13,933 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 [2018-07-23 18:07:14,008 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,011 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,011 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 [2018-07-23 18:07:14,012 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,018 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,020 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 [2018-07-23 18:07:14,020 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,023 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,025 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,030 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 [2018-07-23 18:07:14,032 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,034 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:07:14,035 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,036 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,038 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,039 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,045 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 [2018-07-23 18:07:14,046 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,051 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,053 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,060 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 [2018-07-23 18:07:14,061 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,063 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,066 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,072 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 [2018-07-23 18:07:14,073 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,109 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,124 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 [2018-07-23 18:07:14,244 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2018-07-23 18:07:14,247 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,251 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,257 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 34 [2018-07-23 18:07:14,259 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,272 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:07:14,273 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,277 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,278 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 24 treesize of output 19 [2018-07-23 18:07:14,279 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,281 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:07:14,281 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:14,285 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,289 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,295 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 30 treesize of output 34 [2018-07-23 18:07:14,297 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,299 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,301 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,302 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,309 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 30 treesize of output 37 [2018-07-23 18:07:14,311 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,320 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,325 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,328 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,332 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 32 treesize of output 37 [2018-07-23 18:07:14,335 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,421 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,445 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 [2018-07-23 18:07:14,451 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 11 xjuncts. [2018-07-23 18:07:14,455 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:14,469 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 [2018-07-23 18:07:14,471 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 4 xjuncts. [2018-07-23 18:07:14,544 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:07:14,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:07:14,574 INFO L202 ElimStorePlain]: Needed 19 recursive calls to eliminate 4 variables, input treesize:38, output treesize:12 [2018-07-23 18:07:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2018-07-23 18:07:14,661 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:07:14,661 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 13, 11, 12] total 30 [2018-07-23 18:07:14,661 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:07:14,662 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 18:07:14,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 18:07:14,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=710, Unknown=1, NotChecked=54, Total=870 [2018-07-23 18:07:14,666 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand 21 states. [2018-07-23 18:07:15,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:07:15,748 INFO L93 Difference]: Finished difference Result 164 states and 200 transitions. [2018-07-23 18:07:15,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 18:07:15,749 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 34 [2018-07-23 18:07:15,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:07:15,751 INFO L225 Difference]: With dead ends: 164 [2018-07-23 18:07:15,751 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 18:07:15,752 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 115 SyntacticMatches, 9 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=210, Invalid=1199, Unknown=1, NotChecked=72, Total=1482 [2018-07-23 18:07:15,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 18:07:15,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 91. [2018-07-23 18:07:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 18:07:15,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 106 transitions. [2018-07-23 18:07:15,766 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 106 transitions. Word has length 34 [2018-07-23 18:07:15,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:07:15,766 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 106 transitions. [2018-07-23 18:07:15,767 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 18:07:15,767 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 106 transitions. [2018-07-23 18:07:15,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 18:07:15,769 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:07:15,769 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:07:15,769 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:07:15,770 INFO L82 PathProgramCache]: Analyzing trace with hash 168090399, now seen corresponding path program 1 times [2018-07-23 18:07:15,770 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:07:15,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:15,771 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 18:07:15,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:15,771 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:07:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:07:15,844 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:07:15,845 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 18:07:15,845 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:07:15,845 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 18:07:15,845 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 18:07:15,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 18:07:15,846 INFO L87 Difference]: Start difference. First operand 91 states and 106 transitions. Second operand 4 states. [2018-07-23 18:07:15,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:07:15,890 INFO L93 Difference]: Finished difference Result 148 states and 176 transitions. [2018-07-23 18:07:15,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 18:07:15,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-07-23 18:07:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:07:15,891 INFO L225 Difference]: With dead ends: 148 [2018-07-23 18:07:15,891 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 18:07:15,892 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 18:07:15,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 18:07:15,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 90. [2018-07-23 18:07:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 18:07:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2018-07-23 18:07:15,906 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 34 [2018-07-23 18:07:15,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:07:15,906 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2018-07-23 18:07:15,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 18:07:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2018-07-23 18:07:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 18:07:15,908 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:07:15,908 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:07:15,909 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:07:15,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1884614814, now seen corresponding path program 1 times [2018-07-23 18:07:15,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:07:15,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:15,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:07:15,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:07:15,910 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:07:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:16,286 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:16,286 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:07:16,286 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-07-23 18:07:16,286 INFO L201 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [22], [24], [28], [32], [34], [39], [41], [45], [47], [51], [55], [60], [69], [70], [71], [73] [2018-07-23 18:07:16,288 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:07:16,288 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:07:16,294 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:07:16,440 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-23 18:07:16,440 INFO L272 AbstractInterpreter]: Visited 22 different actions 181 times. Merged at 13 different actions 118 times. Widened at 4 different actions 15 times. Found 13 fixpoints after 3 different actions. Largest state had 8 variables. [2018-07-23 18:07:16,479 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-23 18:07:16,480 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:16,480 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:07:16,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:07:16,498 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:07:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:16,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:16,532 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:16,535 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 [2018-07-23 18:07:16,535 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,549 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-07-23 18:07:16,596 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:16,597 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:16,601 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 [2018-07-23 18:07:16,601 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,612 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-07-23 18:07:16,639 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 13 [2018-07-23 18:07:16,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:16,643 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2018-07-23 18:07:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:16,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:07:18,731 WARN L1010 $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 [2018-07-23 18:07:30,102 WARN L169 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 10 [2018-07-23 18:07:30,314 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 [2018-07-23 18:07:30,344 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,351 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,355 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 16 treesize of output 22 [2018-07-23 18:07:30,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-07-23 18:07:30,461 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:30,698 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,726 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 [2018-07-23 18:07:30,804 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,805 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,807 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,814 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:07:30,824 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 21 treesize of output 41 [2018-07-23 18:07:30,827 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-07-23 18:07:30,873 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:30,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:30,880 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:71, output treesize:7 [2018-07-23 18:07:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2018-07-23 18:07:30,945 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:07:30,945 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:07:30,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:07:30,961 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:07:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:07:31,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:07:31,049 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,052 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 [2018-07-23 18:07:31,052 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:31,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:07:31,061 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2018-07-23 18:07:31,130 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,131 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,132 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,136 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 [2018-07-23 18:07:31,137 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:31,154 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. [2018-07-23 18:07:31,155 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:32, output treesize:19 [2018-07-23 18:07:31,289 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,290 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,291 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:07:31,296 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 [2018-07-23 18:07:31,297 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:07:31,313 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. [2018-07-23 18:07:31,313 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:25, output treesize:14 [2018-07-23 18:07:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:07:31,543 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:08:27,503 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 [2018-07-23 18:08:27,576 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 23 treesize of output 23 [2018-07-23 18:08:27,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,579 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,580 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 20 treesize of output 15 [2018-07-23 18:08:27,581 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:27,583 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,587 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,592 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 [2018-07-23 18:08:27,593 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,619 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,680 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,684 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 [2018-07-23 18:08:27,685 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,692 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,694 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,699 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 [2018-07-23 18:08:27,700 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,703 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,706 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,711 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 23 treesize of output 29 [2018-07-23 18:08:27,712 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,714 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,717 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,725 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 [2018-07-23 18:08:27,725 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-07-23 18:08:27,798 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:08:27,848 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,850 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 [2018-07-23 18:08:27,922 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,939 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 [2018-07-23 18:08:27,940 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:27,943 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,959 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 [2018-07-23 18:08:27,961 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:27,962 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,963 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,965 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,971 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,983 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 [2018-07-23 18:08:27,985 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:27,987 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,987 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,989 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:27,996 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,007 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 [2018-07-23 18:08:28,009 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:28,011 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,011 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,014 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,036 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,047 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 [2018-07-23 18:08:28,050 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:28,051 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,052 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,054 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,061 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,073 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 [2018-07-23 18:08:28,075 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:28,077 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,077 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,086 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,092 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:28,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 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 [2018-07-23 18:08:28,106 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:28,193 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:08:28,262 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-07-23 18:08:28,262 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:71, output treesize:33 [2018-07-23 18:08:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 18 refuted. 2 times theorem prover too weak. 0 trivial. 8 not checked. [2018-07-23 18:08:28,368 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:08:28,368 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16, 15, 15] total 41 [2018-07-23 18:08:28,369 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:08:28,369 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 18:08:28,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 18:08:28,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1257, Unknown=31, NotChecked=76, Total=1640 [2018-07-23 18:08:28,370 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand 17 states. [2018-07-23 18:08:31,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:08:31,053 INFO L93 Difference]: Finished difference Result 201 states and 240 transitions. [2018-07-23 18:08:31,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 18:08:31,053 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 36 [2018-07-23 18:08:31,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:08:31,054 INFO L225 Difference]: With dead ends: 201 [2018-07-23 18:08:31,055 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 18:08:31,056 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 100 SyntacticMatches, 21 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 72.6s TimeCoverageRelationStatistics Valid=410, Invalid=1818, Unknown=32, NotChecked=92, Total=2352 [2018-07-23 18:08:31,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 18:08:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 101. [2018-07-23 18:08:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 18:08:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 119 transitions. [2018-07-23 18:08:31,069 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 119 transitions. Word has length 36 [2018-07-23 18:08:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:08:31,069 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 119 transitions. [2018-07-23 18:08:31,069 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 18:08:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 119 transitions. [2018-07-23 18:08:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 18:08:31,071 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:08:31,071 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:08:31,071 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:08:31,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1513727110, now seen corresponding path program 1 times [2018-07-23 18:08:31,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:08:31,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:08:31,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:08:31,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:08:31,073 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:08:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:08:31,483 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-23 18:08:31,719 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-07-23 18:08:31,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:31,865 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:31,865 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:08:31,865 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-07-23 18:08:31,866 INFO L201 CegarAbsIntRunner]: [0], [3], [5], [8], [10], [11], [15], [19], [22], [24], [28], [32], [34], [37], [41], [45], [47], [51], [55], [60], [63], [69], [70], [71], [73], [74] [2018-07-23 18:08:31,867 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:08:31,867 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:08:31,870 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-23 18:08:32,042 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-23 18:08:32,043 INFO L272 AbstractInterpreter]: Visited 26 different actions 293 times. Merged at 15 different actions 152 times. Widened at 5 different actions 23 times. Found 22 fixpoints after 7 different actions. Largest state had 9 variables. [2018-07-23 18:08:32,059 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-23 18:08:32,060 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:32,060 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:08:32,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:08:32,072 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:08:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:08:32,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:08:32,168 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:32,170 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 [2018-07-23 18:08:32,170 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,178 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2018-07-23 18:08:32,220 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:32,221 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 19 treesize of output 18 [2018-07-23 18:08:32,221 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,227 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2018-07-23 18:08:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:32,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:08:32,622 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,622 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 61 treesize of output 48 [2018-07-23 18:08:32,798 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 23 [2018-07-23 18:08:32,800 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,801 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,801 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,802 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,802 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,808 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 0 case distinctions, treesize of input 32 treesize of output 39 [2018-07-23 18:08:32,808 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,810 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,811 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,813 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,822 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,842 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 61 [2018-07-23 18:08:32,845 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 8 xjuncts. [2018-07-23 18:08:32,847 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,848 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,849 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,859 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:32,884 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 69 [2018-07-23 18:08:32,891 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 12 xjuncts. [2018-07-23 18:08:32,918 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:32,920 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:61, output treesize:3 [2018-07-23 18:08:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:32,989 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:32,989 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:08:33,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:08:33,006 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:08:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:08:33,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:08:33,100 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:33,101 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 [2018-07-23 18:08:33,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,110 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-07-23 18:08:33,138 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:33,139 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 19 treesize of output 18 [2018-07-23 18:08:33,139 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,146 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:7 [2018-07-23 18:08:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:33,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:08:33,312 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,312 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 [2018-07-23 18:08:33,446 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2018-07-23 18:08:33,448 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,450 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:33,450 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,451 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,452 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 28 treesize of output 36 [2018-07-23 18:08:33,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,455 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,456 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:33,457 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:33,457 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 26 treesize of output 33 [2018-07-23 18:08:33,458 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,459 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:08:33,459 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,463 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:33,468 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:41, output treesize:6 [2018-07-23 18:08:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:33,530 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:08:33,530 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 15, 13, 13] total 41 [2018-07-23 18:08:33,530 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:08:33,531 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 18:08:33,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 18:08:33,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1464, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 18:08:33,532 INFO L87 Difference]: Start difference. First operand 101 states and 119 transitions. Second operand 25 states. [2018-07-23 18:08:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:08:34,202 INFO L93 Difference]: Finished difference Result 148 states and 175 transitions. [2018-07-23 18:08:34,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 18:08:34,202 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 38 [2018-07-23 18:08:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:08:34,203 INFO L225 Difference]: With dead ends: 148 [2018-07-23 18:08:34,204 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 18:08:34,204 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 12 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=236, Invalid=1834, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 18:08:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 18:08:34,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 105. [2018-07-23 18:08:34,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 18:08:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 124 transitions. [2018-07-23 18:08:34,217 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 124 transitions. Word has length 38 [2018-07-23 18:08:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:08:34,218 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 124 transitions. [2018-07-23 18:08:34,218 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 18:08:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 124 transitions. [2018-07-23 18:08:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 18:08:34,220 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:08:34,220 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:08:34,220 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:08:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1828611719, now seen corresponding path program 3 times [2018-07-23 18:08:34,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:08:34,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:08:34,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:08:34,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:08:34,221 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:08:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:08:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:34,782 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:34,783 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:08:34,783 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:08:34,783 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:08:34,783 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:34,783 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:08:34,797 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 18:08:34,798 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-07-23 18:08:34,817 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-23 18:08:34,817 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:08:34,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:08:34,856 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:34,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-07-23 18:08:34,859 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:34,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:34,874 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-07-23 18:08:34,959 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:34,968 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:34,969 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:34,973 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 [2018-07-23 18:08:34,974 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:34,990 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. [2018-07-23 18:08:34,990 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:25, output treesize:14 [2018-07-23 18:08:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:35,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:08:37,112 WARN L1010 $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 1) (select .cse0 2)))) is different from false [2018-07-23 18:08:55,914 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 [2018-07-23 18:08:55,985 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,986 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,988 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,989 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 22 treesize of output 23 [2018-07-23 18:08:55,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:55,992 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,993 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,995 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:55,996 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 23 treesize of output 24 [2018-07-23 18:08:55,997 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:55,999 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,000 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,003 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,004 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 26 treesize of output 23 [2018-07-23 18:08:56,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,007 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,008 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 [2018-07-23 18:08:56,009 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,011 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,013 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 18 treesize of output 13 [2018-07-23 18:08:56,014 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,016 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,017 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,020 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,021 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-07-23 18:08:56,022 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,024 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,025 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,027 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,028 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 24 treesize of output 23 [2018-07-23 18:08:56,029 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,042 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,061 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,063 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 [2018-07-23 18:08:56,166 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,169 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,170 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,179 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,191 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 [2018-07-23 18:08:56,193 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,195 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,197 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,197 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,205 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,222 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 [2018-07-23 18:08:56,224 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,226 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,227 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,228 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,236 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,248 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 27 treesize of output 47 [2018-07-23 18:08:56,250 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,279 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,295 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 26 treesize of output 37 [2018-07-23 18:08:56,296 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,299 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,300 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,301 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,309 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,321 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 28 treesize of output 48 [2018-07-23 18:08:56,323 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,325 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,326 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,327 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,335 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,347 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 [2018-07-23 18:08:56,349 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,351 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:08:56,367 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 [2018-07-23 18:08:56,369 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,461 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:08:56,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-23 18:08:56,498 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:71, output treesize:22 [2018-07-23 18:08:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 15 refuted. 6 times theorem prover too weak. 0 trivial. 6 not checked. [2018-07-23 18:08:56,556 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:08:56,556 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:08:56,572 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-07-23 18:08:56,572 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-07-23 18:08:56,677 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-07-23 18:08:56,677 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:08:56,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:08:56,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-07-23 18:08:56,692 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,700 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:7 [2018-07-23 18:08:56,721 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:56,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-07-23 18:08:56,723 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,732 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:14 [2018-07-23 18:08:56,761 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:56,762 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:56,763 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:08:56,768 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 [2018-07-23 18:08:56,768 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:08:56,785 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. [2018-07-23 18:08:56,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:25, output treesize:14 [2018-07-23 18:08:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:08:56,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:09:29,767 WARN L1010 $PredicateComparison]: unable to prove that (forall ((v_main_~i~0_71 Int) (v_subst_9 Int)) (or (let ((.cse0 (store (store c_main_~v~0 (+ c_main_~i~0 1) c_main_~key~0) (+ v_main_~i~0_71 1) v_subst_9))) (<= (select .cse0 1) (select .cse0 2))) (< v_main_~i~0_71 c_main_~j~0))) is different from false [2018-07-23 18:09:37,975 WARN L169 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 36 DAG size of output: 20 [2018-07-23 18:09:39,979 WARN L1010 $PredicateComparison]: unable to prove that (forall ((v_main_~i~0_71 Int) (v_subst_9 Int) (main_~key~0 Int)) (or (< main_~key~0 (select c_main_~v~0 (+ c_main_~j~0 (- 1)))) (let ((.cse0 (store (store c_main_~v~0 c_main_~j~0 main_~key~0) (+ v_main_~i~0_71 1) v_subst_9))) (<= (select .cse0 1) (select .cse0 2))) (< v_main_~i~0_71 c_main_~j~0))) is different from false [2018-07-23 18:09:41,989 WARN L1010 $PredicateComparison]: unable to prove that (forall ((v_main_~i~0_71 Int) (v_subst_9 Int) (main_~key~0 Int)) (let ((.cse0 (+ c_main_~j~0 1))) (or (< main_~key~0 (select c_main_~v~0 c_main_~j~0)) (< v_main_~i~0_71 .cse0) (let ((.cse1 (store (store c_main_~v~0 .cse0 main_~key~0) (+ v_main_~i~0_71 1) v_subst_9))) (<= (select .cse1 1) (select .cse1 2)))))) is different from false [2018-07-23 18:09:42,015 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 44 treesize of output 42 [2018-07-23 18:09:42,017 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,019 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 41 [2018-07-23 18:09:42,084 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,085 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,085 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,086 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,087 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,094 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 41 [2018-07-23 18:09:42,095 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:42,098 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,099 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,101 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,107 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,120 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 [2018-07-23 18:09:42,122 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,124 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,125 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,129 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,136 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,147 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 30 treesize of output 50 [2018-07-23 18:09:42,149 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,151 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,151 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,154 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,161 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,172 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 50 [2018-07-23 18:09:42,174 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,176 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,177 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,177 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,180 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 29 treesize of output 28 [2018-07-23 18:09:42,181 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:42,184 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,184 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,187 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,193 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,205 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 32 treesize of output 50 [2018-07-23 18:09:42,206 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,209 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,209 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2018-07-23 18:09:42,218 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-07-23 18:09:42,295 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:09:42,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:09:42,331 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 43 treesize of output 52 [2018-07-23 18:09:42,338 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,340 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 42 treesize of output 47 [2018-07-23 18:09:42,410 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,411 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,414 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,422 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,435 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 32 treesize of output 50 [2018-07-23 18:09:42,437 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,439 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,440 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,440 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,445 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 [2018-07-23 18:09:42,445 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:42,448 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,448 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,449 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,451 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,459 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,465 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 31 treesize of output 46 [2018-07-23 18:09:42,466 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-07-23 18:09:42,468 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,469 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,473 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,480 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,493 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 30 treesize of output 50 [2018-07-23 18:09:42,494 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,519 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,532 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,590 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,692 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,693 INFO L303 Elim1Store]: Index analysis took 197 ms [2018-07-23 18:09:42,704 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 32 treesize of output 50 [2018-07-23 18:09:42,706 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,708 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,709 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2018-07-23 18:09:42,719 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-07-23 18:09:42,721 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,722 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,725 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,732 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,745 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 [2018-07-23 18:09:42,747 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:42,823 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:09:42,863 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:42,880 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 41 treesize of output 53 [2018-07-23 18:09:43,014 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2018-07-23 18:09:43,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,023 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,027 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,039 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,074 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 6 case distinctions, treesize of input 37 treesize of output 89 [2018-07-23 18:09:43,074 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-23 18:09:43,086 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 39 xjuncts. [2018-07-23 18:09:43,098 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,099 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,102 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,115 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,152 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 6 case distinctions, treesize of input 37 treesize of output 89 [2018-07-23 18:09:43,153 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-23 18:09:43,162 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 39 xjuncts. [2018-07-23 18:09:43,239 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,241 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,246 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,258 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,294 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 6 case distinctions, treesize of input 35 treesize of output 89 [2018-07-23 18:09:43,294 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-23 18:09:43,303 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 39 xjuncts. [2018-07-23 18:09:43,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,312 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,315 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,329 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,365 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 6 case distinctions, treesize of input 39 treesize of output 89 [2018-07-23 18:09:43,365 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-23 18:09:43,377 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 39 xjuncts. [2018-07-23 18:09:43,412 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,413 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,414 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,438 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 56 [2018-07-23 18:09:43,440 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 8 xjuncts. [2018-07-23 18:09:43,445 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,446 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,479 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 64 [2018-07-23 18:09:43,482 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 16 xjuncts. [2018-07-23 18:09:43,487 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,488 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,488 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,490 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,502 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:43,534 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 5 case distinctions, treesize of input 36 treesize of output 85 [2018-07-23 18:09:43,540 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 22 xjuncts. [2018-07-23 18:09:45,640 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,641 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,643 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,650 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 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 51 [2018-07-23 18:09:45,665 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 4 xjuncts. [2018-07-23 18:09:45,667 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,667 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,675 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 1 case distinctions, treesize of input 27 treesize of output 33 [2018-07-23 18:09:45,676 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-07-23 18:09:45,678 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,679 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,679 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:45,683 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 0 case distinctions, treesize of input 27 treesize of output 28 [2018-07-23 18:09:45,684 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:45,785 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-07-23 18:09:45,853 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 7 xjuncts. [2018-07-23 18:09:45,934 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: and 14 xjuncts. [2018-07-23 18:09:45,935 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 5 variables, input treesize:53, output treesize:162 [2018-07-23 18:09:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 8 refuted. 4 times theorem prover too weak. 0 trivial. 15 not checked. [2018-07-23 18:09:45,946 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:09:45,946 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14, 15, 15] total 33 [2018-07-23 18:09:45,946 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:09:45,947 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 18:09:45,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 18:09:45,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=694, Unknown=31, NotChecked=228, Total=1056 [2018-07-23 18:09:45,948 INFO L87 Difference]: Start difference. First operand 105 states and 124 transitions. Second operand 22 states. [2018-07-23 18:09:47,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:09:47,703 INFO L93 Difference]: Finished difference Result 229 states and 276 transitions. [2018-07-23 18:09:47,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 18:09:47,703 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 40 [2018-07-23 18:09:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:09:47,706 INFO L225 Difference]: With dead ends: 229 [2018-07-23 18:09:47,706 INFO L226 Difference]: Without dead ends: 199 [2018-07-23 18:09:47,708 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 133 SyntacticMatches, 15 SemanticMatches, 51 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 67.4s TimeCoverageRelationStatistics Valid=372, Invalid=1965, Unknown=31, NotChecked=388, Total=2756 [2018-07-23 18:09:47,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-07-23 18:09:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 113. [2018-07-23 18:09:47,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 18:09:47,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2018-07-23 18:09:47,723 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 40 [2018-07-23 18:09:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:09:47,723 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2018-07-23 18:09:47,723 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 18:09:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2018-07-23 18:09:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 18:09:47,725 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:09:47,725 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:09:47,725 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:09:47,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1975287383, now seen corresponding path program 4 times [2018-07-23 18:09:47,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:09:47,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:09:47,726 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 18:09:47,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:09:47,726 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:09:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:09:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:09:47,861 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:09:47,861 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:09:47,861 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:09:47,861 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:09:47,862 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:09:47,862 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:09:47,870 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-23 18:09:47,870 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-23 18:09:47,888 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-23 18:09:47,888 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:09:47,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:09:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:09:48,233 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:09:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:09:48,519 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:09:48,519 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:09:48,536 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-07-23 18:09:48,537 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-07-23 18:09:48,588 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-07-23 18:09:48,588 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:09:48,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:09:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:09:48,627 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:09:48,649 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-23 18:09:48,650 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-23 18:09:48,651 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9] total 18 [2018-07-23 18:09:48,651 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-23 18:09:48,651 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 18:09:48,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 18:09:48,652 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-07-23 18:09:48,652 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand 12 states. [2018-07-23 18:09:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:09:48,809 INFO L93 Difference]: Finished difference Result 171 states and 203 transitions. [2018-07-23 18:09:48,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 18:09:48,809 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-07-23 18:09:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:09:48,810 INFO L225 Difference]: With dead ends: 171 [2018-07-23 18:09:48,810 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 18:09:48,811 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 153 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-07-23 18:09:48,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 18:09:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 133. [2018-07-23 18:09:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 18:09:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2018-07-23 18:09:48,825 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 42 [2018-07-23 18:09:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:09:48,826 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2018-07-23 18:09:48,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 18:09:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2018-07-23 18:09:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 18:09:48,827 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:09:48,827 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:09:48,827 INFO L414 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_insertion_sort_false_unreach_call_true_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:09:48,828 INFO L82 PathProgramCache]: Analyzing trace with hash -928103536, now seen corresponding path program 2 times [2018-07-23 18:09:48,828 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:09:48,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:09:48,829 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-07-23 18:09:48,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:09:48,829 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:09:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:09:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:09:49,519 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:09:49,519 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:09:49,519 INFO L183 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-07-23 18:09:49,520 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:09:49,520 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:09:49,520 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:09:49,532 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:09:49,532 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:09:49,546 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:09:49,546 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:09:49,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:09:49,557 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,558 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 [2018-07-23 18:09:49,558 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,566 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:13 [2018-07-23 18:09:49,601 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,601 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,602 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,603 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:49,603 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,608 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 48 [2018-07-23 18:09:49,608 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,619 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,620 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:22 [2018-07-23 18:09:49,689 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:49,689 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,690 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,691 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:09:49,692 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:09:49,699 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 56 [2018-07-23 18:09:49,700 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,713 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:20 [2018-07-23 18:09:49,774 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 21 treesize of output 16 [2018-07-23 18:09:49,775 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:09:49,780 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:7 [2018-07-23 18:09:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:09:50,010 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-23 18:09:56,187 WARN L169 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 15 [2018-07-23 18:10:04,301 WARN L169 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 19 [2018-07-23 18:10:05,346 WARN L169 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-07-23 18:10:07,750 WARN L169 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2018-07-23 18:10:07,757 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 141 [2018-07-23 18:10:07,798 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,800 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,800 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,801 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,801 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,812 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 110 [2018-07-23 18:10:07,816 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,817 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,817 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,818 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 90 [2018-07-23 18:10:07,946 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-07-23 18:10:07,949 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:07,949 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:07,971 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,971 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,972 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,973 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:07,974 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,975 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:07,982 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,988 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 2 case distinctions, treesize of input 46 treesize of output 70 [2018-07-23 18:10:07,990 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:07,992 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:07,992 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:07,994 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,995 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:07,995 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,010 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 1 case distinctions, treesize of input 36 treesize of output 53 [2018-07-23 18:10:08,011 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:08,013 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,013 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,015 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,016 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,034 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,034 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,068 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,068 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,069 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,070 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,071 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,072 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,079 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,085 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 70 [2018-07-23 18:10:08,086 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:08,089 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,089 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,092 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,093 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,095 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,096 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,097 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,098 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,106 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,112 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 76 [2018-07-23 18:10:08,114 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:08,116 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,116 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,117 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,117 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,119 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,119 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,121 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,121 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,193 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:10:08,215 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:10:08,234 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:10:08,329 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,338 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 1 case distinctions, treesize of input 175 treesize of output 148 [2018-07-23 18:10:08,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,365 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,366 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,367 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 138 [2018-07-23 18:10:08,420 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,425 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,426 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,426 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 115 [2018-07-23 18:10:08,864 WARN L169 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 109 [2018-07-23 18:10:08,870 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,870 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,871 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,871 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,873 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,874 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,875 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,875 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,876 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:08,877 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:08,880 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,881 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,882 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,883 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,885 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,885 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,887 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,887 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,889 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:08,905 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:08,918 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 103 [2018-07-23 18:10:08,921 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:08,939 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,039 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,055 INFO L303 Elim1Store]: Index analysis took 133 ms [2018-07-23 18:10:09,073 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 3 case distinctions, treesize of input 52 treesize of output 85 [2018-07-23 18:10:09,076 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 8 xjuncts. [2018-07-23 18:10:09,078 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,078 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,088 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,088 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,090 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,090 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,092 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,092 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,094 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,094 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,096 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,097 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,100 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,102 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,102 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,104 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,107 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,107 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,109 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,109 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,111 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,129 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,143 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 106 [2018-07-23 18:10:09,146 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:09,162 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,162 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,176 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,177 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,179 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,180 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,181 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,182 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,184 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,185 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,186 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,186 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,188 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,204 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 100 [2018-07-23 18:10:09,220 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:09,239 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,239 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,253 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,253 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,255 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,255 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,256 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,257 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,258 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,261 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,261 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,265 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,266 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,267 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,268 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,269 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,285 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 103 [2018-07-23 18:10:09,301 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:09,303 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,303 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,305 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,305 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,308 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,311 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,313 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,314 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,353 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 97 [2018-07-23 18:10:09,357 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 8 xjuncts. [2018-07-23 18:10:09,374 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,374 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,389 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,390 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,392 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,392 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,394 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,394 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,396 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,398 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,398 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,401 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,403 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,403 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,404 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,405 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,406 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,422 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 100 [2018-07-23 18:10:09,439 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:09,441 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,441 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,443 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,443 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,444 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:09,444 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:09,446 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,448 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,448 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,450 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,453 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,453 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,454 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,455 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,456 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:09,473 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:09,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 103 [2018-07-23 18:10:09,490 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:10,104 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,106 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,113 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,113 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,115 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:10,115 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,116 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,116 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 122 [2018-07-23 18:10:10,171 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 32 xjuncts. [2018-07-23 18:10:10,413 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,415 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,416 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:10,417 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,438 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 2 case distinctions, treesize of input 32 treesize of output 63 [2018-07-23 18:10:10,439 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:10,443 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,445 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,446 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:10,447 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,453 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,465 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 2 case distinctions, treesize of input 31 treesize of output 63 [2018-07-23 18:10:10,467 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 3 xjuncts. [2018-07-23 18:10:10,551 INFO L267 ElimStorePlain]: Start of recursive call 21: 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-07-23 18:10:10,683 INFO L267 ElimStorePlain]: Start of recursive call 20: 4 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:10:10,734 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:10:10,738 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,760 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 3 case distinctions, treesize of input 241 treesize of output 191 [2018-07-23 18:10:10,869 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2018-07-23 18:10:10,873 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,874 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,874 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 119 [2018-07-23 18:10:10,891 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,893 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 41 [2018-07-23 18:10:10,955 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:10,955 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:10,958 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,959 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:10,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 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 [2018-07-23 18:10:10,963 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:10,965 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:10,965 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:10,967 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,967 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,968 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:10,968 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,970 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:10,973 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 33 treesize of output 41 [2018-07-23 18:10:10,974 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,003 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,006 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,007 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:11,007 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,014 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 34 treesize of output 42 [2018-07-23 18:10:11,014 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,017 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:11,017 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,020 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,021 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,022 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:11,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,024 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,029 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 36 treesize of output 42 [2018-07-23 18:10:11,030 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,056 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,087 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,088 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,089 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,097 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 54 treesize of output 69 [2018-07-23 18:10:11,166 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:11,167 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,169 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,169 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,170 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,170 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,171 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,171 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,178 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 48 [2018-07-23 18:10:11,179 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,183 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,183 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,184 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,185 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,185 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,187 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:11,187 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,197 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 0 case distinctions, treesize of input 41 treesize of output 56 [2018-07-23 18:10:11,198 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,212 INFO L267 ElimStorePlain]: Start of recursive call 69: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,220 INFO L267 ElimStorePlain]: Start of recursive call 60: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,277 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,278 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,278 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 151 treesize of output 194 [2018-07-23 18:10:11,345 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:11,346 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:11,578 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,593 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,594 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,594 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:11,659 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 9 case distinctions, treesize of input 147 treesize of output 195 [2018-07-23 18:10:12,566 WARN L169 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 208 [2018-07-23 18:10:12,605 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,614 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,614 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,615 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,615 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,617 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,619 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,619 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,621 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:12,621 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,622 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,623 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:12,626 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,627 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 131 treesize of output 170 [2018-07-23 18:10:12,640 INFO L267 ElimStorePlain]: Start of recursive call 76: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-07-23 18:10:12,643 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,645 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,647 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,647 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,648 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:12,674 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 2 case distinctions, treesize of input 128 treesize of output 140 [2018-07-23 18:10:12,676 INFO L267 ElimStorePlain]: Start of recursive call 77: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-07-23 18:10:13,605 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,606 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,606 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,608 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:13,608 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,610 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:13,611 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,611 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 94 [2018-07-23 18:10:13,613 INFO L267 ElimStorePlain]: Start of recursive call 78: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:13,615 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,615 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,617 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,619 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:13,640 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 83 treesize of output 99 [2018-07-23 18:10:13,642 INFO L267 ElimStorePlain]: Start of recursive call 79: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-07-23 18:10:14,393 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:14,394 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:14,395 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:14,398 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 0 case distinctions, treesize of input 109 treesize of output 96 [2018-07-23 18:10:14,399 INFO L267 ElimStorePlain]: Start of recursive call 80: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:15,069 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,070 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,071 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,072 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:15,073 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 127 treesize of output 118 [2018-07-23 18:10:15,073 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:15,708 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,716 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,717 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,718 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,756 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 5 case distinctions, treesize of input 124 treesize of output 156 [2018-07-23 18:10:15,763 INFO L267 ElimStorePlain]: Start of recursive call 82: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 32 xjuncts. [2018-07-23 18:10:15,765 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,766 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,767 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,768 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,769 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,769 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,770 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,771 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,773 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,775 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,776 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,777 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:15,778 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,778 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,780 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:15,782 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,783 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:15,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 102 treesize of output 157 [2018-07-23 18:10:15,795 INFO L267 ElimStorePlain]: Start of recursive call 83: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-07-23 18:10:16,797 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:16,798 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:16,798 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:16,804 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 83 [2018-07-23 18:10:16,805 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:17,525 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:17,529 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:17,532 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:17,533 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:17,533 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:17,568 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 4 case distinctions, treesize of input 127 treesize of output 144 [2018-07-23 18:10:17,573 INFO L267 ElimStorePlain]: Start of recursive call 85: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 8 xjuncts. [2018-07-23 18:10:18,356 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,357 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,357 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,358 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,360 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,360 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,361 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,363 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,365 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,366 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,367 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:18,367 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,368 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,369 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:18,371 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:18,371 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 153 [2018-07-23 18:10:18,374 INFO L267 ElimStorePlain]: Start of recursive call 86: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:18,377 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,389 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,389 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,391 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,392 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:18,394 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:18,449 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 103 treesize of output 152 [2018-07-23 18:10:18,454 INFO L267 ElimStorePlain]: Start of recursive call 87: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 16 xjuncts. [2018-07-23 18:10:19,262 INFO L267 ElimStorePlain]: Start of recursive call 75: 8 dim-1 vars, End of recursive call: 16 dim-0 vars, and 19 xjuncts. [2018-07-23 18:10:20,044 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,045 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,045 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,047 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,047 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 99 [2018-07-23 18:10:20,107 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,108 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,108 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,109 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,111 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,111 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 36 [2018-07-23 18:10:20,113 INFO L267 ElimStorePlain]: Start of recursive call 89: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:20,131 INFO L267 ElimStorePlain]: Start of recursive call 88: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:20,133 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,137 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 55 treesize of output 50 [2018-07-23 18:10:20,194 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:20,194 INFO L267 ElimStorePlain]: Start of recursive call 91: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:20,196 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,197 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:20,198 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,199 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-07-23 18:10:20,199 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:20,201 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,203 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,204 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,204 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,208 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,216 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 25 treesize of output 36 [2018-07-23 18:10:20,217 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,219 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,219 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,220 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,223 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 24 treesize of output 21 [2018-07-23 18:10:20,224 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:20,260 INFO L267 ElimStorePlain]: Start of recursive call 90: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,264 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,264 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 110 [2018-07-23 18:10:20,345 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,346 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,347 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,348 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,349 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 69 [2018-07-23 18:10:20,372 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,461 INFO L267 ElimStorePlain]: Start of recursive call 95: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,464 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 95 [2018-07-23 18:10:20,539 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,541 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 43 [2018-07-23 18:10:20,559 INFO L267 ElimStorePlain]: Start of recursive call 98: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,605 INFO L267 ElimStorePlain]: Start of recursive call 97: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:20,608 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,608 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,610 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 105 [2018-07-23 18:10:20,738 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-07-23 18:10:20,775 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,784 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,798 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,807 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,865 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,896 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,911 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,957 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:20,969 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,001 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,094 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,098 INFO L303 Elim1Store]: Index analysis took 358 ms [2018-07-23 18:10:21,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 127 [2018-07-23 18:10:21,133 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-07-23 18:10:21,146 INFO L267 ElimStorePlain]: Start of recursive call 100: End of recursive call: and 48 xjuncts. [2018-07-23 18:10:21,148 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,149 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,149 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,153 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,154 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:21,155 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,156 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,164 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 69 [2018-07-23 18:10:21,166 INFO L267 ElimStorePlain]: Start of recursive call 101: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:21,168 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,168 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,171 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,171 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,172 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 73 [2018-07-23 18:10:21,200 INFO L267 ElimStorePlain]: Start of recursive call 102: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:21,203 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,203 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,204 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,204 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,205 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,207 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,209 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,210 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,211 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:21,212 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:21,214 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,216 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 96 [2018-07-23 18:10:21,233 INFO L267 ElimStorePlain]: Start of recursive call 103: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:21,235 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,236 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,236 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,239 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,240 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:21,242 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,243 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,251 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 69 [2018-07-23 18:10:21,252 INFO L267 ElimStorePlain]: Start of recursive call 104: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:21,255 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:21,255 INFO L267 ElimStorePlain]: Start of recursive call 105: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:21,258 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,258 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,259 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,260 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,263 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,264 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,265 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,265 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,266 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:21,267 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,268 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,283 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 100 [2018-07-23 18:10:21,305 INFO L267 ElimStorePlain]: Start of recursive call 106: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:21,307 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:21,307 INFO L267 ElimStorePlain]: Start of recursive call 107: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:21,309 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,310 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,310 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,313 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,314 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,314 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,315 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,315 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,330 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 92 [2018-07-23 18:10:21,353 INFO L267 ElimStorePlain]: Start of recursive call 108: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:21,674 INFO L267 ElimStorePlain]: Start of recursive call 99: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:10:21,676 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,677 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,679 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,679 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 103 [2018-07-23 18:10:21,731 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,732 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,733 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,733 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,735 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,736 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,737 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-07-23 18:10:21,737 INFO L267 ElimStorePlain]: Start of recursive call 110: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:21,755 INFO L267 ElimStorePlain]: Start of recursive call 109: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:21,759 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,759 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,762 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:21,782 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 3 case distinctions, treesize of input 96 treesize of output 104 [2018-07-23 18:10:22,002 WARN L169 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2018-07-23 18:10:22,007 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,012 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,020 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,023 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,026 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,027 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,078 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 96 [2018-07-23 18:10:22,080 INFO L267 ElimStorePlain]: Start of recursive call 112: End of recursive call: and 8 xjuncts. [2018-07-23 18:10:22,287 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,288 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,289 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,290 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,292 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,310 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 0 case distinctions, treesize of input 37 treesize of output 45 [2018-07-23 18:10:22,310 INFO L267 ElimStorePlain]: Start of recursive call 113: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,385 INFO L267 ElimStorePlain]: Start of recursive call 111: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:10:22,388 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,389 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,390 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,395 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 98 [2018-07-23 18:10:22,476 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,476 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,480 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,480 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,481 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,481 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,497 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 56 [2018-07-23 18:10:22,498 INFO L267 ElimStorePlain]: Start of recursive call 115: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:22,501 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,501 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,503 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,504 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,505 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2018-07-23 18:10:22,505 INFO L267 ElimStorePlain]: Start of recursive call 116: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,508 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,509 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,509 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,512 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,513 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,514 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,515 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,516 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,517 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,519 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,544 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 80 [2018-07-23 18:10:22,545 INFO L267 ElimStorePlain]: Start of recursive call 117: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:22,649 INFO L267 ElimStorePlain]: Start of recursive call 114: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:22,651 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,655 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 55 treesize of output 50 [2018-07-23 18:10:22,703 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,704 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,704 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,707 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 20 treesize of output 17 [2018-07-23 18:10:22,708 INFO L267 ElimStorePlain]: Start of recursive call 119: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,721 INFO L267 ElimStorePlain]: Start of recursive call 118: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,724 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,727 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 88 [2018-07-23 18:10:22,803 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,831 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 2 case distinctions, treesize of input 30 treesize of output 48 [2018-07-23 18:10:22,833 INFO L267 ElimStorePlain]: Start of recursive call 121: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:22,870 INFO L267 ElimStorePlain]: Start of recursive call 120: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,873 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,874 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 72 [2018-07-23 18:10:22,969 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,970 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,971 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,972 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,973 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,973 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 36 treesize of output 37 [2018-07-23 18:10:22,974 INFO L267 ElimStorePlain]: Start of recursive call 123: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,976 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,977 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,977 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,978 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,985 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 29 treesize of output 33 [2018-07-23 18:10:22,985 INFO L267 ElimStorePlain]: Start of recursive call 124: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:22,987 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,988 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,988 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,990 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:22,990 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:22,996 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2018-07-23 18:10:22,997 INFO L267 ElimStorePlain]: Start of recursive call 125: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,009 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-07-23 18:10:23,010 INFO L267 ElimStorePlain]: Start of recursive call 126: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,011 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,012 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,013 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,016 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,025 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,043 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 60 [2018-07-23 18:10:23,046 INFO L267 ElimStorePlain]: Start of recursive call 127: End of recursive call: and 6 xjuncts. [2018-07-23 18:10:23,047 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,048 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,048 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:23,049 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:23,049 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,050 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 34 treesize of output 37 [2018-07-23 18:10:23,050 INFO L267 ElimStorePlain]: Start of recursive call 128: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,115 INFO L267 ElimStorePlain]: Start of recursive call 122: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:23,118 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,118 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,119 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 53 treesize of output 51 [2018-07-23 18:10:23,156 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,157 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:23,158 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,159 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-07-23 18:10:23,159 INFO L267 ElimStorePlain]: Start of recursive call 130: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,171 INFO L267 ElimStorePlain]: Start of recursive call 129: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,174 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,174 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,175 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,176 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 101 [2018-07-23 18:10:23,271 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,274 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,282 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,283 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,284 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,287 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 46 [2018-07-23 18:10:23,293 INFO L267 ElimStorePlain]: Start of recursive call 132: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:23,330 INFO L267 ElimStorePlain]: Start of recursive call 131: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,333 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,334 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,335 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 106 [2018-07-23 18:10:23,405 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,405 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,408 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,409 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,409 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 57 [2018-07-23 18:10:23,429 INFO L267 ElimStorePlain]: Start of recursive call 134: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:23,490 INFO L267 ElimStorePlain]: Start of recursive call 133: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:23,493 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,493 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,495 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,496 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 110 [2018-07-23 18:10:23,573 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,574 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,575 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,575 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,576 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,578 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,580 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,582 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,583 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 47 [2018-07-23 18:10:23,584 INFO L267 ElimStorePlain]: Start of recursive call 136: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,609 INFO L267 ElimStorePlain]: Start of recursive call 135: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,612 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,615 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,622 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 97 [2018-07-23 18:10:23,693 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,699 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,700 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,700 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,724 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 75 [2018-07-23 18:10:23,726 INFO L267 ElimStorePlain]: Start of recursive call 138: End of recursive call: and 4 xjuncts. [2018-07-23 18:10:23,807 INFO L267 ElimStorePlain]: Start of recursive call 137: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-07-23 18:10:23,810 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,811 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,811 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,812 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,815 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,816 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,816 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 108 [2018-07-23 18:10:23,885 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,886 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,886 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,887 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,888 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,890 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,892 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,892 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 51 [2018-07-23 18:10:23,893 INFO L267 ElimStorePlain]: Start of recursive call 140: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,913 INFO L267 ElimStorePlain]: Start of recursive call 139: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:23,916 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,917 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,918 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 96 [2018-07-23 18:10:23,994 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,995 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,998 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,998 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:23,999 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,000 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,014 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 50 [2018-07-23 18:10:24,015 INFO L267 ElimStorePlain]: Start of recursive call 142: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:24,070 INFO L267 ElimStorePlain]: Start of recursive call 141: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:24,073 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 91 [2018-07-23 18:10:24,137 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,139 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 40 [2018-07-23 18:10:24,156 INFO L267 ElimStorePlain]: Start of recursive call 144: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:24,198 INFO L267 ElimStorePlain]: Start of recursive call 143: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:24,751 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,765 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,774 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,787 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,796 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,799 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,811 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 140 treesize of output 162 [2018-07-23 18:10:24,896 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,897 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,910 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,911 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,911 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,912 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,912 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,913 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:24,913 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,914 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,915 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:24,916 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 118 [2018-07-23 18:10:24,918 INFO L267 ElimStorePlain]: Start of recursive call 146: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:24,920 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,921 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,921 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,921 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,921 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,922 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:24,927 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 0 case distinctions, treesize of input 93 treesize of output 91 [2018-07-23 18:10:24,928 INFO L267 ElimStorePlain]: Start of recursive call 147: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:25,004 INFO L267 ElimStorePlain]: Start of recursive call 145: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-07-23 18:10:25,396 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,398 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 65 treesize of output 64 [2018-07-23 18:10:25,451 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,451 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,457 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 25 treesize of output 24 [2018-07-23 18:10:25,457 INFO L267 ElimStorePlain]: Start of recursive call 149: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:25,467 INFO L267 ElimStorePlain]: Start of recursive call 148: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:25,469 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,470 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 74 [2018-07-23 18:10:25,527 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,528 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,529 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,530 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,531 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 27 treesize of output 30 [2018-07-23 18:10:25,532 INFO L267 ElimStorePlain]: Start of recursive call 151: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:25,555 INFO L267 ElimStorePlain]: Start of recursive call 150: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:25,914 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,915 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,916 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:25,929 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 117 [2018-07-23 18:10:26,008 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,009 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,010 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,011 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,016 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 61 [2018-07-23 18:10:26,017 INFO L267 ElimStorePlain]: Start of recursive call 153: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:26,019 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,020 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,020 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,021 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,022 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,023 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,024 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,025 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 69 [2018-07-23 18:10:26,026 INFO L267 ElimStorePlain]: Start of recursive call 154: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:26,028 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,028 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,029 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,030 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,030 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,031 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,032 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,033 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 69 [2018-07-23 18:10:26,034 INFO L267 ElimStorePlain]: Start of recursive call 155: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-07-23 18:10:26,119 INFO L267 ElimStorePlain]: Start of recursive call 152: 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-07-23 18:10:26,514 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,516 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,519 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 52 treesize of output 57 [2018-07-23 18:10:26,559 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,559 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,560 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,564 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 0 case distinctions, treesize of input 19 treesize of output 20 [2018-07-23 18:10:26,565 INFO L267 ElimStorePlain]: Start of recursive call 157: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,574 INFO L267 ElimStorePlain]: Start of recursive call 156: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,576 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,578 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,591 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 2 case distinctions, treesize of input 52 treesize of output 69 [2018-07-23 18:10:26,700 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2018-07-23 18:10:26,704 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,705 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,706 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,706 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-07-23 18:10:26,707 INFO L267 ElimStorePlain]: Start of recursive call 159: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,742 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,742 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,743 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,743 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,744 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,751 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 45 treesize of output 51 [2018-07-23 18:10:26,751 INFO L267 ElimStorePlain]: Start of recursive call 160: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,782 INFO L267 ElimStorePlain]: Start of recursive call 158: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:26,784 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,786 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,786 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,797 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 2 case distinctions, treesize of input 52 treesize of output 72 [2018-07-23 18:10:26,901 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2018-07-23 18:10:26,904 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,905 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,906 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,906 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,907 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,907 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,908 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,912 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 42 treesize of output 51 [2018-07-23 18:10:26,913 INFO L267 ElimStorePlain]: Start of recursive call 162: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,950 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,951 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:26,952 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:26,952 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-07-23 18:10:26,953 INFO L267 ElimStorePlain]: Start of recursive call 163: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:26,977 INFO L267 ElimStorePlain]: Start of recursive call 161: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:27,410 INFO L267 ElimStorePlain]: Start of recursive call 73: 8 dim-1 vars, End of recursive call: and 21 xjuncts. [2018-07-23 18:10:27,498 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-07-23 18:10:27,578 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-07-23 18:10:27,579 INFO L202 ElimStorePlain]: Needed 163 recursive calls to eliminate 6 variables, input treesize:419, output treesize:73 [2018-07-23 18:10:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:10:30,112 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:10:30,112 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:10:30,130 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-07-23 18:10:30,130 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-07-23 18:10:30,198 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-07-23 18:10:30,198 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-07-23 18:10:30,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:10:30,210 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,213 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 [2018-07-23 18:10:30,214 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,224 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:13 [2018-07-23 18:10:30,249 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,251 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,253 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,254 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:30,255 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,258 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 48 [2018-07-23 18:10:30,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,272 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-07-23 18:10:30,359 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:30,368 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,369 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,370 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,370 INFO L682 Elim1Store]: detected equality via solver [2018-07-23 18:10:30,377 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 56 [2018-07-23 18:10:30,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-07-23 18:10:30,391 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:20 [2018-07-23 18:10:30,441 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,442 INFO L700 Elim1Store]: detected not equals via solver [2018-07-23 18:10:30,457 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 2 case distinctions, treesize of input 23 treesize of output 41 [2018-07-23 18:10:30,458 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-07-23 18:10:30,484 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-07-23 18:10:30,484 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:28, output treesize:23 [2018-07-23 18:10:30,626 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:10:30,626 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-07-23 18:10:51,156 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 18:10:51,357 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-23 18:10:51,357 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 18:10:51,362 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 18:10:51,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:10:51 BoogieIcfgContainer [2018-07-23 18:10:51,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 18:10:51,363 INFO L168 Benchmark]: Toolchain (without parser) took 275909.82 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 924.3 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -462.0 MB). Peak memory consumption was 462.3 MB. Max. memory is 7.1 GB. [2018-07-23 18:10:51,364 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. [2018-07-23 18:10:51,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 18:10:51,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.80 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:10:51,364 INFO L168 Benchmark]: Boogie Preprocessor took 25.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:10:51,365 INFO L168 Benchmark]: RCFGBuilder took 532.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-07-23 18:10:51,365 INFO L168 Benchmark]: TraceAbstraction took 275045.09 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 311.5 MB). Peak memory consumption was 492.4 MB. Max. memory is 7.1 GB. [2018-07-23 18:10:51,367 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 278.45 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 24.80 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 25.21 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 532.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -784.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 275045.09 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 311.5 MB). Peak memory consumption was 492.4 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 43 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 47 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. TIMEOUT Result, 274.9s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 9.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 389 SDtfs, 619 SDslu, 2252 SDs, 0 SdLazy, 2946 SolverSat, 309 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1487 GetRequests, 1031 SyntacticMatches, 118 SemanticMatches, 338 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 4029 ImplicationChecksByTransitivity, 191.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 5 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 404 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 200.1s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 1598 ConstructedInterpolants, 143 QuantifiedInterpolants, 436966 SizeOfPredicates, 162 NumberOfNonLiveVariables, 1208 ConjunctsInSsa, 381 ConjunctsInUnsatCore, 53 InterpolantComputations, 4 PerfectInterpolantSequences, 136/812 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_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_18-10-51-375.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/insertion_sort_false-unreach-call_true-termination.i_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_18-10-51-375.csv Completed graceful shutdown