java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e1a14da [2018-12-24 13:49:00,613 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-24 13:49:00,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-24 13:49:00,629 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-24 13:49:00,675 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-24 13:49:00,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-24 13:49:00,697 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-24 13:49:00,699 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-24 13:49:00,699 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-24 13:49:00,699 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-24 13:49:00,700 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-24 13:49:00,700 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-24 13:49:00,700 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-24 13:49:00,700 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-24 13:49:00,701 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-24 13:49:00,701 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-24 13:49:00,701 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-24 13:49:00,701 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-24 13:49:00,701 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-24 13:49:00,702 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-24 13:49:00,702 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-24 13:49:00,702 INFO L133 SettingsManager]: * Use SBE=true [2018-12-24 13:49:00,703 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-24 13:49:00,704 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-24 13:49:00,704 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-24 13:49:00,704 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-24 13:49:00,704 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-24 13:49:00,705 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-24 13:49:00,707 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-24 13:49:00,707 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-24 13:49:00,707 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-24 13:49:00,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 13:49:00,707 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-24 13:49:00,707 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-24 13:49:00,708 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-24 13:49:00,708 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-24 13:49:00,708 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-24 13:49:00,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-24 13:49:00,708 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-24 13:49:00,709 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-24 13:49:00,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-24 13:49:00,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-24 13:49:00,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-24 13:49:00,766 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-24 13:49:00,766 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-24 13:49:00,767 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2018-12-24 13:49:00,767 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2018-12-24 13:49:00,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-24 13:49:00,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-24 13:49:00,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-24 13:49:00,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-24 13:49:00,812 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-24 13:49:00,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,853 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-24 13:49:00,854 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-24 13:49:00,854 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-24 13:49:00,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-24 13:49:00,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-24 13:49:00,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-24 13:49:00,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-24 13:49:00,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/1) ... [2018-12-24 13:49:00,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-24 13:49:00,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-24 13:49:00,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-24 13:49:00,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-24 13:49:00,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (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 [2018-12-24 13:49:00,950 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-24 13:49:00,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-24 13:49:00,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-24 13:49:01,170 INFO L272 CfgBuilder]: Using library mode [2018-12-24 13:49:01,171 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-24 13:49:01,171 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 01:49:01 BoogieIcfgContainer [2018-12-24 13:49:01,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-24 13:49:01,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-24 13:49:01,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-24 13:49:01,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-24 13:49:01,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:49:00" (1/2) ... [2018-12-24 13:49:01,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283cc94c and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 01:49:01, skipping insertion in model container [2018-12-24 13:49:01,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 01:49:01" (2/2) ... [2018-12-24 13:49:01,180 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2018-12-24 13:49:01,190 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-24 13:49:01,199 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-24 13:49:01,218 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-24 13:49:01,254 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-24 13:49:01,255 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-24 13:49:01,255 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-24 13:49:01,255 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-24 13:49:01,255 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-24 13:49:01,256 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-24 13:49:01,256 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-24 13:49:01,256 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-24 13:49:01,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-24 13:49:01,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-24 13:49:01,280 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:49:01,281 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-24 13:49:01,284 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:49:01,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:49:01,291 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2018-12-24 13:49:01,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:49:01,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:01,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:49:01,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:01,351 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:49:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:49:01,737 WARN L181 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-12-24 13:49:01,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:01,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-24 13:49:01,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-24 13:49:01,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-24 13:49:01,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-24 13:49:01,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-24 13:49:01,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-24 13:49:01,800 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-12-24 13:49:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:49:01,859 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-24 13:49:01,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-24 13:49:01,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-24 13:49:01,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:49:01,873 INFO L225 Difference]: With dead ends: 15 [2018-12-24 13:49:01,874 INFO L226 Difference]: Without dead ends: 5 [2018-12-24 13:49:01,877 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-24 13:49:01,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-24 13:49:01,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-24 13:49:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-24 13:49:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-24 13:49:01,916 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-24 13:49:01,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:49:01,916 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-24 13:49:01,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-24 13:49:01,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-24 13:49:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-24 13:49:01,917 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:49:01,917 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-24 13:49:01,918 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:49:01,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:49:01,918 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2018-12-24 13:49:01,918 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:49:01,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:01,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:49:01,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:01,920 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:49:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:49:02,377 WARN L181 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2018-12-24 13:49:02,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:02,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:02,393 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 13:49:02,394 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-24 13:49:02,396 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2018-12-24 13:49:02,442 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-24 13:49:02,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-24 13:49:02,529 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-24 13:49:02,530 INFO L272 AbstractInterpreter]: Visited 4 different actions 4 times. Never merged. Never widened. Performed 22 root evaluator evaluations with a maximum evaluation depth of 3. Performed 22 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-24 13:49:02,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:49:02,537 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-24 13:49:02,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:02,538 INFO L193 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 [2018-12-24 13:49:02,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:49:02,554 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-24 13:49:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:49:02,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 13:49:02,660 INFO L478 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 9 treesize of output 12 [2018-12-24 13:49:02,707 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:02,731 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:02,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 13:49:02,737 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:02,806 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:02,826 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:02,827 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 13:49:03,149 WARN L181 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-12-24 13:49:03,198 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,271 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,281 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,292 INFO L303 Elim1Store]: Index analysis took 139 ms [2018-12-24 13:49:03,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 58 [2018-12-24 13:49:03,362 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,393 INFO L478 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 50 treesize of output 70 [2018-12-24 13:49:03,395 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:03,558 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,580 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,583 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,591 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,633 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,658 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,673 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,706 INFO L303 Elim1Store]: Index analysis took 176 ms [2018-12-24 13:49:03,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 90 [2018-12-24 13:49:03,731 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:03,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:49:03,828 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,831 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,832 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 57 [2018-12-24 13:49:03,863 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,865 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:03,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2018-12-24 13:49:03,868 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:04,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,025 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,027 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,032 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:04,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 86 [2018-12-24 13:49:04,036 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:04,094 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:49:04,325 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-24 13:49:04,325 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2018-12-24 13:49:04,563 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2018-12-24 13:49:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:04,576 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 13:49:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:04,691 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 13:49:04,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2018-12-24 13:49:04,692 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 13:49:04,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-24 13:49:04,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-24 13:49:04,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-24 13:49:04,693 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-12-24 13:49:08,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:49:08,800 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-24 13:49:08,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-24 13:49:08,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-12-24 13:49:08,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:49:08,801 INFO L225 Difference]: With dead ends: 8 [2018-12-24 13:49:08,801 INFO L226 Difference]: Without dead ends: 6 [2018-12-24 13:49:08,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-24 13:49:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-24 13:49:08,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-24 13:49:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-24 13:49:08,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-12-24 13:49:08,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-12-24 13:49:08,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:49:08,806 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-12-24 13:49:08,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-24 13:49:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-12-24 13:49:08,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-24 13:49:08,807 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:49:08,807 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-12-24 13:49:08,807 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:49:08,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:49:08,808 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2018-12-24 13:49:08,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:49:08,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:08,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:49:08,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:08,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:49:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:49:09,105 WARN L181 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2018-12-24 13:49:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:09,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:09,139 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 13:49:09,139 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 13:49:09,139 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 13:49:09,140 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:09,140 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 13:49:09,156 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-24 13:49:09,156 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-24 13:49:09,170 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-24 13:49:09,170 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-24 13:49:09,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 13:49:09,184 INFO L478 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 9 treesize of output 12 [2018-12-24 13:49:09,187 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,189 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 13:49:09,191 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 13:49:09,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,312 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,376 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 53 [2018-12-24 13:49:09,383 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,385 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,388 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 66 [2018-12-24 13:49:09,392 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,495 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,496 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,498 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,500 INFO L478 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 29 treesize of output 42 [2018-12-24 13:49:09,501 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,571 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:49:09,580 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,587 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,607 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 54 [2018-12-24 13:49:09,614 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,620 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 70 [2018-12-24 13:49:09,640 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,707 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,708 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,709 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:09,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 46 [2018-12-24 13:49:09,721 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:09,762 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:49:09,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-24 13:49:09,843 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2018-12-24 13:49:10,173 WARN L181 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-12-24 13:49:10,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,188 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,191 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 72 [2018-12-24 13:49:10,218 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,220 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,222 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,227 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 100 [2018-12-24 13:49:10,253 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:10,322 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:10,327 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,329 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2018-12-24 13:49:10,446 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,451 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,452 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,456 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 93 [2018-12-24 13:49:10,458 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:10,496 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:10,872 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,874 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,878 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,880 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,883 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,898 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 122 [2018-12-24 13:49:10,922 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,934 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,936 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,941 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:10,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 167 [2018-12-24 13:49:10,962 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:11,019 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:11,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,032 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,033 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,036 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,038 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,039 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,041 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 125 [2018-12-24 13:49:11,053 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,058 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,079 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,100 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:11,102 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 164 [2018-12-24 13:49:11,103 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:11,273 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:11,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-12-24 13:49:11,380 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2018-12-24 13:49:12,818 WARN L181 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2018-12-24 13:49:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:12,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 13:49:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-24 13:49:12,966 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 13:49:12,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2018-12-24 13:49:12,966 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 13:49:12,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-24 13:49:12,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-24 13:49:12,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-12-24 13:49:12,967 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2018-12-24 13:49:18,171 WARN L181 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-12-24 13:49:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:49:22,300 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-12-24 13:49:22,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-24 13:49:22,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2018-12-24 13:49:22,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:49:22,302 INFO L225 Difference]: With dead ends: 10 [2018-12-24 13:49:22,302 INFO L226 Difference]: Without dead ends: 8 [2018-12-24 13:49:22,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-12-24 13:49:22,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-24 13:49:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-24 13:49:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-24 13:49:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-24 13:49:22,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-12-24 13:49:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:49:22,308 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-24 13:49:22,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-24 13:49:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-24 13:49:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-24 13:49:22,308 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:49:22,309 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-12-24 13:49:22,309 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:49:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:49:22,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2018-12-24 13:49:22,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:49:22,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:22,310 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-24 13:49:22,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:49:22,311 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:49:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:49:22,893 WARN L181 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2018-12-24 13:49:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:23,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:23,013 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 13:49:23,013 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 13:49:23,013 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 13:49:23,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:49:23,014 INFO L193 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 [2018-12-24 13:49:23,033 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-24 13:49:23,034 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-24 13:49:23,169 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-24 13:49:23,170 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-24 13:49:23,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 13:49:23,189 INFO L478 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 9 treesize of output 12 [2018-12-24 13:49:23,194 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,195 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 13:49:23,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,201 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 13:49:23,275 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,276 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,277 INFO L478 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 33 treesize of output 50 [2018-12-24 13:49:23,281 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,283 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2018-12-24 13:49:23,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,319 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,321 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2018-12-24 13:49:23,340 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,341 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,342 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:23,343 INFO L478 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2018-12-24 13:49:23,344 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,611 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:23,653 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 2 xjuncts. [2018-12-24 13:49:23,654 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2018-12-24 13:49:23,998 WARN L181 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-24 13:49:24,013 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,014 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,015 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,016 INFO L478 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 66 treesize of output 89 [2018-12-24 13:49:24,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,025 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,027 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2018-12-24 13:49:24,031 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:24,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:24,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,229 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,248 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,267 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,269 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,270 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,271 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:49:24,273 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,274 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 148 [2018-12-24 13:49:24,324 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,348 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,369 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,380 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,384 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:24,384 INFO L303 Elim1Store]: Index analysis took 105 ms [2018-12-24 13:49:24,386 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 136 [2018-12-24 13:49:24,386 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:24,456 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:24,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 13:49:24,504 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2018-12-24 13:49:25,083 WARN L181 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-12-24 13:49:25,088 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,091 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,094 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,095 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,097 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,098 INFO L478 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 95 treesize of output 161 [2018-12-24 13:49:25,106 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,107 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,111 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,113 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,115 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 159 [2018-12-24 13:49:25,116 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:25,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:25,442 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,445 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,446 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,455 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,461 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,461 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:49:25,465 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,466 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,472 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,474 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,481 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,483 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,485 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,486 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 270 [2018-12-24 13:49:25,536 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,542 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,545 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,546 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,550 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:25,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 192 [2018-12-24 13:49:25,552 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:25,668 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:25,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 13:49:25,748 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2018-12-24 13:49:27,141 WARN L181 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-24 13:49:29,799 WARN L181 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2018-12-24 13:49:29,810 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,816 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,825 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,832 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,839 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,846 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,854 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,859 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 296 [2018-12-24 13:49:29,876 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,878 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,879 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,880 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,883 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,885 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:29,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 212 [2018-12-24 13:49:29,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:30,014 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:31,410 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,421 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,434 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,452 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,466 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,488 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,509 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,532 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,552 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,566 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,589 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,638 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,654 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,659 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,660 INFO L303 Elim1Store]: Index analysis took 259 ms [2018-12-24 13:49:31,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 394 [2018-12-24 13:49:31,705 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,728 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,751 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,772 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,786 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,788 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:49:31,788 INFO L303 Elim1Store]: Index analysis took 122 ms [2018-12-24 13:49:31,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 319 [2018-12-24 13:49:31,792 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:49:32,180 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:49:32,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 13:49:32,655 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2018-12-24 13:49:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:49:41,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 13:49:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-24 13:49:42,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 13:49:42,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2018-12-24 13:49:42,681 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 13:49:42,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-24 13:49:42,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-24 13:49:42,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=134, Unknown=4, NotChecked=0, Total=210 [2018-12-24 13:49:42,682 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2018-12-24 13:50:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:50:05,133 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-24 13:50:05,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-24 13:50:05,134 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2018-12-24 13:50:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:50:05,135 INFO L225 Difference]: With dead ends: 14 [2018-12-24 13:50:05,135 INFO L226 Difference]: Without dead ends: 11 [2018-12-24 13:50:05,135 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=72, Invalid=134, Unknown=4, NotChecked=0, Total=210 [2018-12-24 13:50:05,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-24 13:50:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-24 13:50:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-24 13:50:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-12-24 13:50:05,140 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2018-12-24 13:50:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:50:05,140 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-12-24 13:50:05,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-24 13:50:05,140 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-12-24 13:50:05,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-24 13:50:05,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:50:05,141 INFO L402 BasicCegarLoop]: trace histogram [7, 1, 1, 1] [2018-12-24 13:50:05,141 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:50:05,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:50:05,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1612820806, now seen corresponding path program 4 times [2018-12-24 13:50:05,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:50:05,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:50:05,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-24 13:50:05,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:50:05,143 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:50:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:50:05,593 WARN L181 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 23 [2018-12-24 13:50:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-24 13:50:05,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:50:05,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 13:50:05,691 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 13:50:05,692 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 13:50:05,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:50:05,692 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 13:50:05,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:50:05,703 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-24 13:50:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:50:06,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 13:50:06,492 INFO L478 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 9 treesize of output 12 [2018-12-24 13:50:06,497 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,499 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 13:50:06,500 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 13:50:06,627 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,629 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,632 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,643 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 53 [2018-12-24 13:50:06,649 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,651 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,653 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 66 [2018-12-24 13:50:06,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,710 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,712 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,714 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,715 INFO L478 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 29 treesize of output 42 [2018-12-24 13:50:06,716 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,753 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:50:06,757 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,759 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,764 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 54 [2018-12-24 13:50:06,791 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,795 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,797 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 70 [2018-12-24 13:50:06,812 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,874 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,875 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:06,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 46 [2018-12-24 13:50:06,886 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:06,929 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 13:50:07,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-24 13:50:07,001 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2018-12-24 13:50:07,209 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,211 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,215 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,228 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 75 [2018-12-24 13:50:07,249 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,254 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,260 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,272 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 76 [2018-12-24 13:50:07,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,336 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,338 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,340 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,342 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 74 [2018-12-24 13:50:07,347 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,348 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,349 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,362 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,363 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2018-12-24 13:50:07,364 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,401 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,680 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,681 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,685 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,690 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,692 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,693 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,698 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 125 [2018-12-24 13:50:07,720 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,722 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,731 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,733 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 135 [2018-12-24 13:50:07,753 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,811 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,821 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,825 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,827 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,828 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,834 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 128 [2018-12-24 13:50:07,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,846 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,847 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:07,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 132 [2018-12-24 13:50:07,854 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:07,908 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:08,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-24 13:50:08,020 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:131, output treesize:135 [2018-12-24 13:50:08,723 WARN L181 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2018-12-24 13:50:08,729 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,733 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,735 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,739 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,741 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,750 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,798 INFO L478 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 5 case distinctions, treesize of input 98 treesize of output 181 [2018-12-24 13:50:08,837 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,839 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,840 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,842 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:08,845 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 198 [2018-12-24 13:50:08,846 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:08,991 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:09,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,026 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,040 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 95 treesize of output 178 [2018-12-24 13:50:09,106 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,120 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,122 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,125 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 201 [2018-12-24 13:50:09,154 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:09,326 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,332 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,334 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,337 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,340 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,343 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,344 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,391 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,393 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,395 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:09,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 156 [2018-12-24 13:50:09,421 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:09,502 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:11,139 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,271 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,274 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,277 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,285 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,290 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,293 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,295 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,296 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:11,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,325 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,327 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,352 INFO L303 Elim1Store]: Index analysis took 229 ms [2018-12-24 13:50:11,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 3 new quantified variables, introduced 11 case distinctions, treesize of input 113 treesize of output 301 [2018-12-24 13:50:11,422 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,424 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,432 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,437 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,444 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 292 treesize of output 336 [2018-12-24 13:50:11,469 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:11,752 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,759 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,763 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,766 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,767 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,774 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,779 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,789 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,804 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,807 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,807 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,816 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,822 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,828 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:11,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 116 treesize of output 302 [2018-12-24 13:50:11,847 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:12,004 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:12,027 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,036 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,044 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,064 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,093 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,102 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,104 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,105 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,105 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:12,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,126 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,138 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-12-24 13:50:12,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 120 treesize of output 296 [2018-12-24 13:50:12,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,180 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,182 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,186 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:12,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 317 [2018-12-24 13:50:12,188 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:12,863 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:13,039 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-24 13:50:13,039 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:223, output treesize:189 [2018-12-24 13:50:18,796 WARN L181 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2018-12-24 13:50:19,790 WARN L181 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-12-24 13:50:19,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:19,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:19,897 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:19,946 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,175 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,227 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,230 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,235 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,236 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:20,240 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,262 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,267 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,271 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,276 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,321 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,328 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,377 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,377 INFO L303 Elim1Store]: Index analysis took 584 ms [2018-12-24 13:50:20,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 365 [2018-12-24 13:50:20,403 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,407 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,409 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,414 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,416 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 342 [2018-12-24 13:50:20,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:20,786 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:20,820 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,875 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,885 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,890 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,897 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,908 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,916 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,917 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:20,932 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,934 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,944 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,963 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,964 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,976 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:20,996 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,032 INFO L303 Elim1Store]: Index analysis took 245 ms [2018-12-24 13:50:21,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 133 treesize of output 358 [2018-12-24 13:50:21,059 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,064 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,067 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,084 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:21,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 24 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 103 treesize of output 341 [2018-12-24 13:50:21,132 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:21,491 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:26,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,063 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,065 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,066 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,068 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,070 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,072 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,073 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,074 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,076 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 216 [2018-12-24 13:50:26,112 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,113 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,117 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,122 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 207 [2018-12-24 13:50:26,123 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:26,229 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:26,236 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,238 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,239 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,242 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,245 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,247 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,249 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,253 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,254 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,257 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 111 treesize of output 209 [2018-12-24 13:50:26,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,299 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,301 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,306 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,307 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,309 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:26,333 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 206 [2018-12-24 13:50:26,334 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:26,428 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:27,100 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-12-24 13:50:27,100 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:267, output treesize:367 [2018-12-24 13:50:45,082 WARN L181 SmtUtils]: Spent 7.25 s on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2018-12-24 13:50:46,833 WARN L181 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 100 [2018-12-24 13:50:46,848 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,850 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,860 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,861 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,863 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,864 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,886 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,887 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,895 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,896 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,897 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,942 INFO L303 Elim1Store]: Index analysis took 107 ms [2018-12-24 13:50:46,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 150 treesize of output 342 [2018-12-24 13:50:46,982 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:46,993 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,006 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,035 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,037 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,039 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,041 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,105 INFO L303 Elim1Store]: Index analysis took 155 ms [2018-12-24 13:50:47,111 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 101 treesize of output 347 [2018-12-24 13:50:47,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:47,332 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:47,344 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,345 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,351 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,366 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,367 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,369 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,377 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,379 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,381 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,386 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,387 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,388 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,395 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,396 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 353 [2018-12-24 13:50:47,459 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,472 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,476 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,477 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,479 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,482 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,486 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:47,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 352 [2018-12-24 13:50:47,488 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:47,637 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:54,880 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:54,911 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:54,954 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:54,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,105 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,136 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,137 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:55,156 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,260 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,273 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,393 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,483 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,606 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,637 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,674 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,688 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,786 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,794 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,803 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,818 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:55,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,128 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,168 INFO L303 Elim1Store]: Index analysis took 1298 ms [2018-12-24 13:50:56,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 3 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 683 [2018-12-24 13:50:56,560 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,564 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,578 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,695 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,707 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,714 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:56,885 INFO L303 Elim1Store]: Index analysis took 388 ms [2018-12-24 13:50:56,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 30 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 655 treesize of output 759 [2018-12-24 13:50:56,896 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:50:58,571 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:50:58,590 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,620 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,688 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,757 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,763 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,764 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 13:50:58,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,789 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,812 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,827 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,831 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,862 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:58,995 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,011 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,027 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,066 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,068 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,143 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,209 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,229 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,241 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,251 INFO L303 Elim1Store]: Index analysis took 679 ms [2018-12-24 13:50:59,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 214 treesize of output 678 [2018-12-24 13:50:59,505 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,514 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,535 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,544 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,558 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,562 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:50:59,563 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 669 treesize of output 770 [2018-12-24 13:50:59,564 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:51:01,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,033 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,133 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,200 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,254 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,295 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,302 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,326 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,374 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,432 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,446 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,455 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,491 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,587 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,603 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,630 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,641 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,682 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,729 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,788 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:02,960 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,149 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,165 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,175 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,200 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,346 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,356 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:03,357 INFO L303 Elim1Store]: Index analysis took 1468 ms [2018-12-24 13:51:03,359 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 740 [2018-12-24 13:51:03,360 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-24 13:51:04,946 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:51:05,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-24 13:51:05,949 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:380, output treesize:353 [2018-12-24 13:51:28,074 WARN L181 SmtUtils]: Spent 7.85 s on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2018-12-24 13:51:38,927 WARN L181 SmtUtils]: Spent 10.85 s on a formula simplification that was a NOOP. DAG size: 106 [2018-12-24 13:51:39,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,174 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,208 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,323 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,464 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,524 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,572 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,803 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:39,825 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,095 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,336 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,425 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,536 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,611 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,624 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,790 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,801 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,837 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:40,857 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,592 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,622 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,628 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,663 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,734 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,887 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:41,939 INFO L303 Elim1Store]: Index analysis took 3010 ms [2018-12-24 13:51:42,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 3 new quantified variables, introduced 17 case distinctions, treesize of input 246 treesize of output 941 [2018-12-24 13:51:42,247 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,295 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,301 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,330 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,335 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,338 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,341 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:42,378 INFO L303 Elim1Store]: Index analysis took 202 ms [2018-12-24 13:51:42,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 38 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 909 treesize of output 1017 [2018-12-24 13:51:42,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:51:45,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:51:45,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:45,887 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,044 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,520 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,597 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,770 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,908 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:46,999 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,148 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,242 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,483 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,531 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:47,944 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,036 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,221 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,613 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,706 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,912 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:48,988 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:50,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,074 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,167 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,239 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,334 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:51,703 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,159 INFO L303 Elim1Store]: Index analysis took 8507 ms [2018-12-24 13:51:54,223 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 261 treesize of output 932 [2018-12-24 13:51:54,301 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,309 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,311 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,313 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,329 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,333 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:54,334 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-12-24 13:51:54,335 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 923 treesize of output 1028 [2018-12-24 13:51:54,337 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:51:59,801 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,803 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,804 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,828 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,891 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,942 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:51:59,993 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,014 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,054 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,150 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,177 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,184 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,241 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,333 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,388 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,622 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,705 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,732 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:00,754 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,120 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,211 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,281 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,334 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,344 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,413 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,575 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,644 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,747 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,771 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,787 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:01,867 INFO L303 Elim1Store]: Index analysis took 2186 ms [2018-12-24 13:52:01,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 1017 [2018-12-24 13:52:01,869 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 13:52:03,818 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:52:38,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,820 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,821 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,822 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,825 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,833 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,834 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,835 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,856 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,861 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,864 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,865 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,868 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,874 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,876 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 212 treesize of output 550 [2018-12-24 13:52:38,898 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,907 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,913 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,920 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,952 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,953 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,959 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:38,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 561 [2018-12-24 13:52:38,961 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-12-24 13:52:39,275 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:52:39,287 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,311 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,312 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,313 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,332 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,350 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,363 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,372 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,400 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,401 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,402 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,407 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,408 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,409 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,410 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,416 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,423 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,427 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,437 INFO L303 Elim1Store]: Index analysis took 160 ms [2018-12-24 13:52:39,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 197 treesize of output 535 [2018-12-24 13:52:39,464 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,469 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,472 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,484 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,486 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,490 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,492 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,496 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:52:39,529 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 30 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 140 treesize of output 552 [2018-12-24 13:52:39,531 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-12-24 13:52:40,005 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:52:42,963 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-12-24 13:52:42,964 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 6 variables, input treesize:478, output treesize:641 [2018-12-24 13:53:22,405 WARN L181 SmtUtils]: Spent 12.92 s on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2018-12-24 13:53:41,555 WARN L181 SmtUtils]: Spent 19.14 s on a formula simplification that was a NOOP. DAG size: 107 [2018-12-24 13:53:41,813 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:41,882 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,313 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,656 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,806 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,876 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:42,988 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,079 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,435 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,445 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,490 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,615 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:43,906 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,071 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,357 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,674 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,892 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,933 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:44,999 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:45,087 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:45,300 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:45,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:46,260 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:46,465 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:46,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:46,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,321 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,383 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,499 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,546 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,595 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,611 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:47,998 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,009 INFO L303 Elim1Store]: Index analysis took 6451 ms [2018-12-24 13:53:48,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 38 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 271 treesize of output 1023 [2018-12-24 13:53:48,081 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,087 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,094 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,101 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,103 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,125 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,133 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:48,177 INFO L303 Elim1Store]: Index analysis took 150 ms [2018-12-24 13:53:48,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 48 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 256 treesize of output 1360 [2018-12-24 13:53:48,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 13:53:55,185 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:53:56,122 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:56,391 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:56,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:56,584 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:56,834 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:56,949 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:57,095 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:57,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:57,770 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:57,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:58,065 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:58,277 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:58,554 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:53:58,754 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:00,763 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= main_x (mod (+ (mod (+ (mod (+ (mod (+ v_subst_4 2) 256) 1) 256) 1) 256) 1) 256)) [2018-12-24 13:54:00,764 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:00,919 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:01,039 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:01,097 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:01,390 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:01,521 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:01,619 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,553 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,791 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:02,975 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:03,824 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:04,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:04,806 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:04,954 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:05,077 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:05,607 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:05,639 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:05,834 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,169 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,170 INFO L303 Elim1Store]: Index analysis took 10983 ms [2018-12-24 13:54:06,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 1042 [2018-12-24 13:54:06,353 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,357 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,362 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,370 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,372 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,375 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:54:06,379 INFO L303 Elim1Store]: Index analysis took 204 ms [2018-12-24 13:54:06,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 47 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 276 treesize of output 1373 [2018-12-24 13:54:06,381 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 13:54:12,427 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:55:16,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,142 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,148 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,154 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,155 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,165 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,171 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,173 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,175 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,176 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,181 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,183 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,196 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,223 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,236 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,258 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,284 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,285 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,288 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,289 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,291 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,293 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,294 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,308 INFO L303 Elim1Store]: Index analysis took 201 ms [2018-12-24 13:55:16,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 249 treesize of output 797 [2018-12-24 13:55:16,360 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,369 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,376 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,378 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,395 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,397 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,403 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:16,439 INFO L303 Elim1Store]: Index analysis took 118 ms [2018-12-24 13:55:16,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 38 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 7 case distinctions, treesize of input 215 treesize of output 1085 [2018-12-24 13:55:16,451 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 13:55:16,960 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:55:17,040 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,043 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,044 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,047 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,049 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,098 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,113 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,114 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,117 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,121 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,122 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,124 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,126 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,129 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,131 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,132 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,143 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,188 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,189 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,190 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,206 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,223 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,244 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,255 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,257 INFO L303 Elim1Store]: Index analysis took 295 ms [2018-12-24 13:55:17,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 816 [2018-12-24 13:55:17,400 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,402 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,406 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,411 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,420 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,426 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,430 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,438 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,442 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 13:55:17,443 INFO L303 Elim1Store]: Index analysis took 182 ms [2018-12-24 13:55:17,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 1098 [2018-12-24 13:55:17,445 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 13:55:18,083 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:55:24,306 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-12-24 13:55:24,307 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:563, output treesize:515 [2018-12-24 13:55:58,378 WARN L181 SmtUtils]: Spent 4.38 s on a formula simplification that was a NOOP. DAG size: 97 [2018-12-24 13:55:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 10 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:55:58,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 13:56:19,325 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-24 13:56:19,344 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 13:56:19,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 3] total 16 [2018-12-24 13:56:19,344 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 13:56:19,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-24 13:56:19,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-24 13:56:19,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=176, Unknown=33, NotChecked=0, Total=272 [2018-12-24 13:56:19,346 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 15 states. [2018-12-24 13:57:05,423 WARN L181 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2018-12-24 13:57:27,445 WARN L181 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-12-24 13:58:03,717 WARN L181 SmtUtils]: Spent 5.14 s on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2018-12-24 13:58:50,808 WARN L181 SmtUtils]: Spent 13.84 s on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2018-12-24 13:59:40,284 WARN L181 SmtUtils]: Spent 10.89 s on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2018-12-24 13:59:53,860 WARN L838 $PredicateComparison]: unable to prove that (and (= 1000 (select c_main_a c_main_x)) (not (= c_main_x c_main_y)) (or (exists ((main_yold Int) (v_subst_4 Int)) (let ((.cse8 (+ v_subst_4 1)) (.cse13 (mod (+ (mod (+ v_subst_4 2) 256) 1) 256))) (let ((.cse11 (mod (+ (mod (+ .cse13 1) 256) 1) 256)) (.cse9 (mod .cse8 256))) (let ((.cse12 (mod (+ .cse9 1) 256)) (.cse10 (mod (+ .cse11 1) 256))) (let ((.cse3 (mod (+ .cse10 1) 256)) (.cse4 (select c_main_a (mod (+ (mod (+ .cse12 1) 256) 1) 256))) (.cse6 (select c_main_a .cse13)) (.cse1 (select c_main_a .cse12)) (.cse5 (select c_main_a .cse11)) (.cse7 (select c_main_a .cse10)) (.cse0 (select c_main_a .cse9)) (.cse2 (select c_main_a v_subst_4))) (and (= .cse0 .cse1) (= 1000 .cse2) (= c_main_x .cse3) (= (select c_main_a (mod (+ .cse3 1) 256)) (select c_main_a main_yold)) (= .cse4 .cse5) (= .cse4 .cse6) (= .cse6 .cse1) (= .cse7 .cse5) (= (select c_main_a c_main_x) .cse7) (= .cse0 .cse2) (= 0 (select c_main_a .cse8)))))))) (exists ((v_prenex_49 Int) (v_prenex_45 Int)) (let ((.cse25 (mod (+ v_prenex_45 1) 256))) (let ((.cse26 (mod (+ .cse25 1) 256))) (let ((.cse22 (mod (+ .cse26 1) 256))) (let ((.cse23 (mod (+ .cse22 1) 256))) (let ((.cse24 (mod (+ .cse23 1) 256))) (let ((.cse18 (select c_main_a v_prenex_45)) (.cse15 (select c_main_a .cse24)) (.cse16 (select c_main_a .cse26)) (.cse19 (select c_main_a .cse25)) (.cse21 (mod (+ .cse24 1) 256)) (.cse20 (select c_main_a (+ v_prenex_45 (- 1)))) (.cse14 (select c_main_a .cse23)) (.cse17 (select c_main_a .cse22))) (and (= .cse14 .cse15) (= v_prenex_45 (mod v_prenex_45 256)) (= .cse16 .cse17) (= .cse18 .cse19) (= .cse18 .cse20) (= (select c_main_a c_main_x) .cse15) (= .cse16 .cse19) (= (select c_main_a v_prenex_49) (select c_main_a (mod (+ .cse21 1) 256))) (= c_main_x .cse21) (= .cse20 1000) (= .cse14 .cse17)))))))))) (= 1000 (select c_main_a c_main_y))) is different from false [2018-12-24 13:59:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:59:55,905 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-24 13:59:55,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-24 13:59:55,905 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 10 [2018-12-24 13:59:55,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:59:55,906 INFO L225 Difference]: With dead ends: 12 [2018-12-24 13:59:55,906 INFO L226 Difference]: Without dead ends: 0 [2018-12-24 13:59:55,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 268.4s TimeCoverageRelationStatistics Valid=110, Invalid=278, Unknown=78, NotChecked=40, Total=506 [2018-12-24 13:59:55,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-24 13:59:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-24 13:59:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-24 13:59:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-24 13:59:55,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-24 13:59:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:59:55,907 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-24 13:59:55,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-24 13:59:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-24 13:59:55,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-24 13:59:55,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-24 13:59:58,516 WARN L181 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 375 DAG size of output: 34 [2018-12-24 13:59:58,519 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2018-12-24 13:59:58,519 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-24 13:59:58,519 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2018-12-24 13:59:58,519 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2018-12-24 13:59:58,519 INFO L444 ceAbstractionStarter]: At program point L18-1(lines 18 29) the Hoare annotation is: (let ((.cse0 (select main_a main_x)) (.cse1 (select main_a main_y))) (or (and (= .cse0 1000) (= .cse1 0) (= main_y (+ main_x 1))) (and (= .cse0 .cse1) (= 1000 .cse1)) (exists ((main_yold Int)) (let ((.cse2 (select main_a main_yold)) (.cse3 (select main_a (+ main_yold (- 1))))) (and (= (mod main_yold 256) main_x) (= 0 .cse2) (= main_y (mod (+ main_yold 1) 256)) (= (select main_a main_y) .cse2) (= (select main_a main_x) .cse3) (= 1000 .cse3)))))) [2018-12-24 13:59:58,520 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2018-12-24 13:59:58,531 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 01:59:58 BoogieIcfgContainer [2018-12-24 13:59:58,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-24 13:59:58,532 INFO L168 Benchmark]: Toolchain (without parser) took 657722.05 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 993.0 MB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 824.7 MB. Max. memory is 7.1 GB. [2018-12-24 13:59:58,533 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-12-24 13:59:58,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.11 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. [2018-12-24 13:59:58,533 INFO L168 Benchmark]: Boogie Preprocessor took 24.73 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. [2018-12-24 13:59:58,534 INFO L168 Benchmark]: RCFGBuilder took 288.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-24 13:59:58,534 INFO L168 Benchmark]: TraceAbstraction took 657359.05 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 993.0 MB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 803.5 MB. Max. memory is 7.1 GB. [2018-12-24 13:59:58,536 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 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. * Boogie Procedure Inliner took 45.11 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. * Boogie Preprocessor took 24.73 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. * RCFGBuilder took 288.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 657359.05 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 993.0 MB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 803.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (((a[x] == 1000 && a[y] == 0) && y == x + 1) || (a[x] == a[y] && 1000 == a[y])) || (exists main_yold : int :: ((((main_yold % 256 == x && 0 == a[main_yold]) && y == (main_yold + 1) % 256) && a[y] == a[main_yold]) && a[x] == a[main_yold + -1]) && 1000 == a[main_yold + -1]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 657.2s OverallTime, 5 OverallIterations, 7 TraceHistogramMax, 252.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 91 SolverSat, 10 SolverUnsat, 58 SolverUnknown, 0 SolverNotchecked, 123.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 9 SyntacticMatches, 13 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 284.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 9 NumberOfFragments, 72 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 2793 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 400.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 68 ConstructedInterpolants, 24 QuantifiedInterpolants, 32568 SizeOfPredicates, 38 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 31/126 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...