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-b7bd044-m [2019-01-20 09:59:35,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-20 09:59:35,627 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-20 09:59:35,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-20 09:59:35,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-20 09:59:35,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-20 09:59:35,647 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-20 09:59:35,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-20 09:59:35,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-20 09:59:35,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-20 09:59:35,655 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-20 09:59:35,682 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 [2019-01-20 09:59:35,694 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-20 09:59:35,695 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-20 09:59:35,695 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-20 09:59:35,696 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-20 09:59:35,696 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-20 09:59:35,696 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-20 09:59:35,696 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-20 09:59:35,696 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-20 09:59:35,697 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-20 09:59:35,697 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-20 09:59:35,697 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-20 09:59:35,697 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-20 09:59:35,698 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-20 09:59:35,698 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-20 09:59:35,700 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-20 09:59:35,700 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-20 09:59:35,700 INFO L133 SettingsManager]: * Use SBE=true [2019-01-20 09:59:35,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-20 09:59:35,702 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-20 09:59:35,702 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-20 09:59:35,702 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-20 09:59:35,702 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-20 09:59:35,702 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-20 09:59:35,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-20 09:59:35,703 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-20 09:59:35,703 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-20 09:59:35,703 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-20 09:59:35,703 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-20 09:59:35,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-20 09:59:35,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-20 09:59:35,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-20 09:59:35,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-20 09:59:35,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-20 09:59:35,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-20 09:59:35,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-20 09:59:35,706 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-20 09:59:35,706 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-20 09:59:35,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-20 09:59:35,706 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-20 09:59:35,707 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-20 09:59:35,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-20 09:59:35,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-20 09:59:35,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-20 09:59:35,788 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-20 09:59:35,789 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-20 09:59:35,790 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-01-20 09:59:35,790 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-01-20 09:59:35,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-20 09:59:35,831 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-20 09:59:35,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-20 09:59:35,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-20 09:59:35,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-20 09:59:35,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,869 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-20 09:59:35,869 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-20 09:59:35,870 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-20 09:59:35,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-20 09:59:35,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-20 09:59:35,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-20 09:59:35,874 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-20 09:59:35,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/1) ... [2019-01-20 09:59:35,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-20 09:59:35,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-20 09:59:35,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-20 09:59:35,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-20 09:59:35,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (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 [2019-01-20 09:59:35,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-20 09:59:35,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-20 09:59:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-20 09:59:36,153 INFO L278 CfgBuilder]: Using library mode [2019-01-20 09:59:36,154 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-20 09:59:36,155 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:59:36 BoogieIcfgContainer [2019-01-20 09:59:36,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-20 09:59:36,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-20 09:59:36,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-20 09:59:36,159 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-20 09:59:36,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 09:59:35" (1/2) ... [2019-01-20 09:59:36,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135806fd and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:59:36, skipping insertion in model container [2019-01-20 09:59:36,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:59:36" (2/2) ... [2019-01-20 09:59:36,163 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-01-20 09:59:36,172 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-20 09:59:36,180 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-20 09:59:36,197 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-20 09:59:36,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-20 09:59:36,230 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-20 09:59:36,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-20 09:59:36,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-20 09:59:36,230 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-20 09:59:36,231 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-20 09:59:36,231 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-20 09:59:36,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-20 09:59:36,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-20 09:59:36,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-20 09:59:36,251 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 09:59:36,252 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-20 09:59:36,255 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-20 09:59:36,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 09:59:36,261 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-01-20 09:59:36,263 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 09:59:36,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:36,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 09:59:36,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:36,316 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 09:59:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 09:59:36,653 WARN L181 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-01-20 09:59:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:36,689 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-20 09:59:36,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-20 09:59:36,690 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-20 09:59:36,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-20 09:59:36,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-20 09:59:36,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-20 09:59:36,706 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-01-20 09:59:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 09:59:36,770 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-20 09:59:36,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-20 09:59:36,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-20 09:59:36,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 09:59:36,783 INFO L225 Difference]: With dead ends: 15 [2019-01-20 09:59:36,784 INFO L226 Difference]: Without dead ends: 5 [2019-01-20 09:59:36,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-20 09:59:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-20 09:59:36,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-20 09:59:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-20 09:59:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-20 09:59:36,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-20 09:59:36,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 09:59:36,819 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-20 09:59:36,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-20 09:59:36,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-20 09:59:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-20 09:59:36,820 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 09:59:36,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-20 09:59:36,823 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-20 09:59:36,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 09:59:36,823 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-01-20 09:59:36,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 09:59:36,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:36,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 09:59:36,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:36,825 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 09:59:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 09:59:37,066 WARN L181 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-01-20 09:59:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:37,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:37,079 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 09:59:37,080 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-20 09:59:37,082 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-01-20 09:59:37,120 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-20 09:59:37,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-20 09:59:37,197 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-20 09:59:37,198 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. [2019-01-20 09:59:37,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 09:59:37,205 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-20 09:59:37,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:37,205 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 [2019-01-20 09:59:37,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 09:59:37,224 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-20 09:59:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 09:59:37,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-20 09:59:37,326 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 [2019-01-20 09:59:37,367 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,395 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 [2019-01-20 09:59:37,397 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:37,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:37,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:37,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-20 09:59:37,633 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,641 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,650 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,729 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 [2019-01-20 09:59:37,795 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,820 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:37,916 INFO L303 Elim1Store]: Index analysis took 180 ms [2019-01-20 09:59:37,930 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 [2019-01-20 09:59:37,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:38,188 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,197 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,203 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,207 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,209 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,216 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,263 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 [2019-01-20 09:59:38,266 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:38,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-20 09:59:38,378 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,380 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,381 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,398 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 [2019-01-20 09:59:38,416 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,417 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,422 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 [2019-01-20 09:59:38,425 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:38,722 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,743 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,767 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,791 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,813 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,838 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,844 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:38,844 INFO L303 Elim1Store]: Index analysis took 150 ms [2019-01-20 09:59:38,846 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 [2019-01-20 09:59:38,847 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:38,900 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-20 09:59:38,983 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. [2019-01-20 09:59:38,983 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-01-20 09:59:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:39,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-20 09:59:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:39,234 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-20 09:59:39,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-01-20 09:59:39,234 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-20 09:59:39,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-20 09:59:39,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-20 09:59:39,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-20 09:59:39,237 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-01-20 09:59:43,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 09:59:43,341 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-20 09:59:43,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-20 09:59:43,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-01-20 09:59:43,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 09:59:43,343 INFO L225 Difference]: With dead ends: 8 [2019-01-20 09:59:43,343 INFO L226 Difference]: Without dead ends: 6 [2019-01-20 09:59:43,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-20 09:59:43,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-01-20 09:59:43,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-20 09:59:43,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-20 09:59:43,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-20 09:59:43,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-01-20 09:59:43,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 09:59:43,347 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-20 09:59:43,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-20 09:59:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-01-20 09:59:43,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-20 09:59:43,347 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 09:59:43,348 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-01-20 09:59:43,348 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-20 09:59:43,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 09:59:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-01-20 09:59:43,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 09:59:43,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:43,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 09:59:43,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:43,350 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 09:59:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 09:59:43,676 WARN L181 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-01-20 09:59:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:43,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:43,692 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 09:59:43,692 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-20 09:59:43,693 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-20 09:59:43,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:43,693 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 [2019-01-20 09:59:43,704 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-20 09:59:43,704 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-20 09:59:43,715 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-20 09:59:43,716 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-20 09:59:43,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-20 09:59:43,736 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 [2019-01-20 09:59:43,740 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,742 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,744 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 [2019-01-20 09:59:43,745 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:43,756 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:43,768 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:43,768 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-20 09:59:43,831 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,843 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,848 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,893 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 [2019-01-20 09:59:43,901 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,902 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:43,905 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 [2019-01-20 09:59:43,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,009 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,011 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,012 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,013 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 [2019-01-20 09:59:44,014 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,085 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-20 09:59:44,094 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,097 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,102 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,120 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 [2019-01-20 09:59:44,127 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,131 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,133 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,148 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 [2019-01-20 09:59:44,150 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,210 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,212 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,213 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,224 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 [2019-01-20 09:59:44,225 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,267 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-20 09:59:44,337 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. [2019-01-20 09:59:44,338 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-01-20 09:59:44,595 WARN L181 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-01-20 09:59:44,609 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,610 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,613 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,698 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 [2019-01-20 09:59:44,723 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,725 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,727 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,749 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 [2019-01-20 09:59:44,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,825 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,827 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,828 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,830 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 [2019-01-20 09:59:44,849 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,851 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,852 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,856 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:44,858 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 [2019-01-20 09:59:44,859 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:44,925 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:45,199 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,203 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,204 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,206 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,208 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,215 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,221 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 [2019-01-20 09:59:45,230 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,236 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,240 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,242 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,262 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 [2019-01-20 09:59:45,263 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:45,313 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:45,318 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,319 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,321 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,329 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,333 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,335 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,337 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,338 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 [2019-01-20 09:59:45,360 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,384 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,408 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:45,410 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 [2019-01-20 09:59:45,411 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:45,601 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:45,707 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. [2019-01-20 09:59:45,707 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-01-20 09:59:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:45,948 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-20 09:59:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-20 09:59:46,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-20 09:59:46,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-01-20 09:59:46,038 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-20 09:59:46,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-20 09:59:46,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-20 09:59:46,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-01-20 09:59:46,039 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-01-20 09:59:51,882 WARN L181 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-01-20 09:59:55,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 09:59:55,997 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-01-20 09:59:55,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-20 09:59:55,998 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-01-20 09:59:55,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 09:59:55,998 INFO L225 Difference]: With dead ends: 10 [2019-01-20 09:59:55,998 INFO L226 Difference]: Without dead ends: 8 [2019-01-20 09:59:55,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-01-20 09:59:55,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-20 09:59:56,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-20 09:59:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-20 09:59:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-20 09:59:56,003 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-20 09:59:56,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 09:59:56,003 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-20 09:59:56,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-20 09:59:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-20 09:59:56,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-20 09:59:56,004 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 09:59:56,004 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-01-20 09:59:56,004 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-20 09:59:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 09:59:56,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-01-20 09:59:56,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 09:59:56,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:56,006 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-20 09:59:56,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 09:59:56,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 09:59:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 09:59:56,532 WARN L181 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-01-20 09:59:56,595 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 09:59:56,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:56,596 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 09:59:56,596 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-20 09:59:56,597 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-20 09:59:56,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 09:59:56,597 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 [2019-01-20 09:59:56,611 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-20 09:59:56,612 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-20 09:59:56,730 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-20 09:59:56,730 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-20 09:59:56,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-20 09:59:56,749 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 [2019-01-20 09:59:56,755 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,757 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,758 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 [2019-01-20 09:59:56,758 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:56,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:56,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:56,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-20 09:59:56,899 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,900 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,901 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 [2019-01-20 09:59:56,909 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,910 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,911 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 [2019-01-20 09:59:56,912 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:56,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:56,952 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,953 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,955 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:56,957 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 [2019-01-20 09:59:56,998 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,022 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,052 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 [2019-01-20 09:59:57,053 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,223 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,256 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. [2019-01-20 09:59:57,256 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-20 09:59:57,553 WARN L181 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-20 09:59:57,557 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,558 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,559 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,560 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 [2019-01-20 09:59:57,565 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,567 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,569 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,570 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 [2019-01-20 09:59:57,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,646 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,734 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,758 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,770 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,772 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,773 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,774 INFO L683 Elim1Store]: detected equality via solver [2019-01-20 09:59:57,775 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,778 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,779 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 [2019-01-20 09:59:57,803 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,804 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,806 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,807 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,809 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:57,812 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 [2019-01-20 09:59:57,814 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,881 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:57,930 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. [2019-01-20 09:59:57,930 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-20 09:59:58,504 WARN L181 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-01-20 09:59:58,511 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,513 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,516 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,519 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,521 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,524 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,526 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 [2019-01-20 09:59:58,532 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,534 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,537 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:58,539 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 [2019-01-20 09:59:58,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:58,591 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:59,405 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,406 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,408 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,409 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,410 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,411 INFO L683 Elim1Store]: detected equality via solver [2019-01-20 09:59:59,412 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,414 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,419 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,421 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,431 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,434 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,435 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,436 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 [2019-01-20 09:59:59,455 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,460 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,466 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,470 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,472 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 09:59:59,474 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 [2019-01-20 09:59:59,475 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 09:59:59,666 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 09:59:59,996 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. [2019-01-20 09:59:59,996 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-01-20 10:00:02,119 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-01-20 10:00:04,672 WARN L181 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-01-20 10:00:04,682 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,686 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,691 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,697 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,705 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,710 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,716 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,721 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,728 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,734 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 [2019-01-20 10:00:04,751 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,752 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,753 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,756 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,758 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:04,760 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 [2019-01-20 10:00:04,762 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:04,852 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:06,155 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,181 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,400 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,441 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,474 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,476 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,487 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,500 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,517 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,536 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,555 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,567 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,571 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,582 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,587 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,595 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,595 INFO L303 Elim1Store]: Index analysis took 473 ms [2019-01-20 10:00:06,596 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 [2019-01-20 10:00:06,623 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,631 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,635 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,638 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,645 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,647 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:06,648 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 [2019-01-20 10:00:06,650 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:07,010 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:08,258 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. [2019-01-20 10:00:08,259 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-01-20 10:00:13,319 WARN L181 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-01-20 10:00:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:00:13,326 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-20 10:00:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-20 10:00:18,930 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-20 10:00:18,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-01-20 10:00:18,930 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-20 10:00:18,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-20 10:00:18,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-20 10:00:18,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=136, Unknown=1, NotChecked=0, Total=210 [2019-01-20 10:00:18,932 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-01-20 10:00:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:00:38,549 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-01-20 10:00:38,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-20 10:00:38,549 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-01-20 10:00:38,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:00:38,550 INFO L225 Difference]: With dead ends: 15 [2019-01-20 10:00:38,550 INFO L226 Difference]: Without dead ends: 12 [2019-01-20 10:00:38,550 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=73, Invalid=136, Unknown=1, NotChecked=0, Total=210 [2019-01-20 10:00:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-20 10:00:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-20 10:00:38,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-20 10:00:38,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-20 10:00:38,556 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-01-20 10:00:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:00:38,556 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-20 10:00:38,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-20 10:00:38,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-20 10:00:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-20 10:00:38,556 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 10:00:38,556 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-01-20 10:00:38,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-20 10:00:38,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:00:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-01-20 10:00:38,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 10:00:38,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:00:38,558 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-20 10:00:38,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:00:38,558 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 10:00:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:00:39,167 WARN L181 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2019-01-20 10:00:39,368 WARN L181 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2019-01-20 10:00:39,630 WARN L181 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-01-20 10:00:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-20 10:00:39,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 10:00:39,884 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 10:00:39,884 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-20 10:00:39,885 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-20 10:00:39,885 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 10:00:39,885 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 [2019-01-20 10:00:39,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 10:00:39,894 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-20 10:00:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:00:41,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-20 10:00:41,952 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 [2019-01-20 10:00:41,961 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:41,963 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:41,964 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 [2019-01-20 10:00:41,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:41,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:41,984 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:41,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-20 10:00:42,037 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,039 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,040 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 [2019-01-20 10:00:42,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,051 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,052 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 [2019-01-20 10:00:42,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,072 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,082 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,083 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,083 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,085 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 [2019-01-20 10:00:42,088 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,089 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,090 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,091 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 [2019-01-20 10:00:42,092 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,117 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,147 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. [2019-01-20 10:00:42,148 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-20 10:00:42,340 WARN L181 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-20 10:00:42,343 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,344 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,344 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,345 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 [2019-01-20 10:00:42,350 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,351 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,352 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,354 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,355 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 [2019-01-20 10:00:42,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,559 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,564 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,565 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,565 INFO L683 Elim1Store]: detected equality via solver [2019-01-20 10:00:42,567 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,569 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,571 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,572 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,574 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 130 [2019-01-20 10:00:42,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,601 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,603 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,605 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:42,606 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 55 treesize of output 126 [2019-01-20 10:00:42,608 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,663 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:42,731 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. [2019-01-20 10:00:42,731 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-20 10:00:43,812 WARN L181 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-01-20 10:00:43,822 INFO L683 Elim1Store]: detected equality via solver [2019-01-20 10:00:43,825 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,834 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,837 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,840 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,846 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,858 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,862 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,867 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,868 INFO L683 Elim1Store]: detected equality via solver [2019-01-20 10:00:43,874 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,878 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,884 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,890 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,891 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 107 treesize of output 259 [2019-01-20 10:00:43,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,911 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,917 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,919 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,924 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:43,926 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 79 treesize of output 178 [2019-01-20 10:00:43,926 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:44,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:44,364 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,365 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,367 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,370 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,371 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,372 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,373 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 171 [2019-01-20 10:00:44,385 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,387 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,388 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,392 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:44,393 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 56 treesize of output 127 [2019-01-20 10:00:44,393 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:44,451 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:44,655 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. [2019-01-20 10:00:44,655 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-01-20 10:00:45,348 WARN L181 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-01-20 10:00:47,826 WARN L181 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-01-20 10:00:47,834 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,835 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,837 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,843 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,844 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,846 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,848 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,849 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,851 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,852 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,854 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 136 treesize of output 298 [2019-01-20 10:00:47,863 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,864 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,866 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,867 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,869 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,871 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:47,872 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 85 treesize of output 214 [2019-01-20 10:00:47,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:47,987 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:49,219 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,228 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,241 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,278 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,284 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,306 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,324 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,346 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,357 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,371 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,374 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,384 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,388 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,398 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,423 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,430 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,430 INFO L303 Elim1Store]: Index analysis took 239 ms [2019-01-20 10:00:49,431 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 142 treesize of output 378 [2019-01-20 10:00:49,463 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,464 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,466 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,474 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,476 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,479 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:00:49,481 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 108 treesize of output 287 [2019-01-20 10:00:49,481 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:00:49,822 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:00:50,449 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. [2019-01-20 10:00:50,449 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-01-20 10:00:55,737 WARN L181 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 64 [2019-01-20 10:01:02,043 WARN L181 SmtUtils]: Spent 6.30 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-01-20 10:01:02,052 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,071 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,075 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,081 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,091 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,097 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,127 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,143 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,155 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,163 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,171 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,182 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,186 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,198 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,199 INFO L303 Elim1Store]: Index analysis took 155 ms [2019-01-20 10:01:02,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 491 [2019-01-20 10:01:02,209 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,211 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,214 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,215 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,217 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,219 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,222 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:02,224 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 128 treesize of output 367 [2019-01-20 10:01:02,225 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:01:02,794 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:01:05,989 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,002 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,017 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,036 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,066 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,124 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,182 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,211 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,250 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,293 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,374 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,379 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,432 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,463 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,476 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,507 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,539 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,583 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,617 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,634 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,663 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,707 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,707 INFO L303 Elim1Store]: Index analysis took 807 ms [2019-01-20 10:01:06,709 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 0 case distinctions, treesize of input 189 treesize of output 585 [2019-01-20 10:01:06,763 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,776 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,799 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,823 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,832 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,837 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,845 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:06,845 INFO L303 Elim1Store]: Index analysis took 133 ms [2019-01-20 10:01:06,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 30 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 450 [2019-01-20 10:01:06,848 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:01:07,552 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:01:09,833 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. [2019-01-20 10:01:09,833 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-01-20 10:01:28,635 WARN L181 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 72 [2019-01-20 10:01:41,844 WARN L181 SmtUtils]: Spent 13.20 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-01-20 10:01:42,131 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,238 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,294 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,397 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,421 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,482 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,575 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,747 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,802 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:42,918 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,018 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,069 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,224 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,284 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,419 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,528 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,623 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,682 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,805 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,850 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:43,939 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,041 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,112 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,200 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,238 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,411 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,543 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,630 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,693 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,694 INFO L303 Elim1Store]: Index analysis took 2848 ms [2019-01-20 10:01:44,695 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 0 case distinctions, treesize of input 252 treesize of output 876 [2019-01-20 10:01:44,745 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,747 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,750 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,759 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,762 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,777 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,779 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,782 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:01:44,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 38 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 713 [2019-01-20 10:01:44,787 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:01:47,300 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:02:01,029 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,030 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,043 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,048 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,060 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,067 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,077 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,085 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,086 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,100 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,101 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,102 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,103 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,105 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,107 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,108 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,110 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,112 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,114 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,115 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,123 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 746 [2019-01-20 10:02:01,137 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,139 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,142 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,144 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,150 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,151 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,154 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:01,156 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 169 treesize of output 574 [2019-01-20 10:02:01,157 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:02:01,965 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:02:03,852 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. [2019-01-20 10:02:03,853 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-01-20 10:02:25,578 WARN L181 SmtUtils]: Spent 4.31 s on a formula simplification that was a NOOP. DAG size: 81 [2019-01-20 10:02:42,788 WARN L181 SmtUtils]: Spent 17.20 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-01-20 10:02:42,934 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:42,968 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,046 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,145 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,147 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,256 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,258 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,379 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,477 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,499 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:43,890 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,055 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,182 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,270 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,304 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,375 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,472 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,574 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,606 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,657 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,738 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:44,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,106 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,556 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,667 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,846 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,883 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,927 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:45,955 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,110 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,276 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,288 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,458 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,622 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,691 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,691 INFO L303 Elim1Store]: Index analysis took 3902 ms [2019-01-20 10:02:46,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 1173 [2019-01-20 10:02:46,714 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,725 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,730 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,737 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,748 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,750 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,752 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,757 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:02:46,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 1238 [2019-01-20 10:02:46,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:02:55,353 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:03:23,275 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,278 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,293 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,299 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,307 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,308 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,310 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,339 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,371 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,380 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,393 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,402 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,405 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,418 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,419 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,420 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,425 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,434 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,443 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,465 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,501 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,504 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,505 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,527 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,529 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,584 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,585 INFO L303 Elim1Store]: Index analysis took 332 ms [2019-01-20 10:03:23,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 1091 [2019-01-20 10:03:23,662 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,686 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,717 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,721 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,723 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,725 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,727 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,729 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,732 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:03:23,733 INFO L303 Elim1Store]: Index analysis took 142 ms [2019-01-20 10:03:23,734 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 224 treesize of output 863 [2019-01-20 10:03:23,735 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:03:24,317 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:03:30,174 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. [2019-01-20 10:03:30,174 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-01-20 10:03:59,994 WARN L181 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 89 [2019-01-20 10:04:32,438 WARN L181 SmtUtils]: Spent 32.43 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-01-20 10:04:32,771 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:32,931 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:33,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:33,186 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:33,361 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:33,910 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:34,230 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:34,325 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:34,579 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:34,855 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,107 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,151 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,323 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,414 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,478 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,631 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,738 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,796 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:35,884 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,111 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,190 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,351 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,438 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,620 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,767 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:36,937 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,180 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,302 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,489 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,806 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:37,906 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,151 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,419 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,501 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,699 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:38,807 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:39,077 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:39,802 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:39,923 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:40,030 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:40,116 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,572 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,592 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,796 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,797 INFO L303 Elim1Store]: Index analysis took 9357 ms [2019-01-20 10:04:41,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 46 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 1732 [2019-01-20 10:04:41,856 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,861 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,873 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,875 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,892 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,897 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,919 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,921 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:41,923 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:42,626 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:04:42,626 INFO L303 Elim1Store]: Index analysis took 821 ms [2019-01-20 10:04:42,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 57 disjoint index pairs (out of 45 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 1417 [2019-01-20 10:04:42,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-20 10:04:57,087 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:05:46,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,331 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,339 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,353 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,375 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,404 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,415 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,441 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,466 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,479 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,529 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,552 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,554 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,556 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,558 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,560 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,594 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,613 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,617 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,621 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,811 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,862 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,871 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,873 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,914 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,929 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,930 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,931 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,932 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,934 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,936 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:46,967 INFO L303 Elim1Store]: Index analysis took 653 ms [2019-01-20 10:05:46,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 1540 [2019-01-20 10:05:47,048 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,206 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,208 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,210 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,212 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,215 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,219 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,223 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,225 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,232 INFO L701 Elim1Store]: detected not equals via solver [2019-01-20 10:05:47,233 INFO L303 Elim1Store]: Index analysis took 261 ms [2019-01-20 10:05:47,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 1248 [2019-01-20 10:05:47,236 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-20 10:05:48,947 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-20 10:06:00,943 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. [2019-01-20 10:06:00,943 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-01-20 10:06:42,138 WARN L181 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 96 [2019-01-20 10:06:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 19 refuted. 17 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:06:42,162 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-20 10:06:49,899 WARN L181 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-01-20 10:06:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 6 times theorem prover too weak. 15 trivial. 0 not checked. [2019-01-20 10:06:49,920 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-20 10:06:49,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 5] total 20 [2019-01-20 10:06:49,920 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-20 10:06:49,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-20 10:06:49,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-20 10:06:49,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=237, Unknown=45, NotChecked=0, Total=420 [2019-01-20 10:06:49,921 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-01-20 10:08:52,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:08:52,102 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-20 10:08:52,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-20 10:08:52,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-01-20 10:08:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:08:52,116 INFO L225 Difference]: With dead ends: 13 [2019-01-20 10:08:52,116 INFO L226 Difference]: Without dead ends: 0 [2019-01-20 10:08:52,117 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 10 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 126.3s TimeCoverageRelationStatistics Valid=138, Invalid=237, Unknown=45, NotChecked=0, Total=420 [2019-01-20 10:08:52,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-20 10:08:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-20 10:08:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-20 10:08:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-20 10:08:52,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-20 10:08:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:08:52,118 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-20 10:08:52,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-20 10:08:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-20 10:08:52,118 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-20 10:08:52,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-20 10:09:13,867 WARN L181 SmtUtils]: Spent 21.71 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-01-20 10:09:13,870 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-01-20 10:09:13,870 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-01-20 10:09:13,870 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-01-20 10:09:13,870 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-01-20 10:09:13,870 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) (not (= 0 .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)))))) [2019-01-20 10:09:13,870 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-01-20 10:09:13,882 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:09:13 BoogieIcfgContainer [2019-01-20 10:09:13,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-20 10:09:13,883 INFO L168 Benchmark]: Toolchain (without parser) took 578052.65 ms. Allocated memory was 139.5 MB in the beginning and 333.4 MB in the end (delta: 194.0 MB). Free memory was 107.0 MB in the beginning and 277.6 MB in the end (delta: -170.6 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2019-01-20 10:09:13,884 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory is still 108.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-20 10:09:13,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.76 ms. Allocated memory is still 139.5 MB. Free memory was 106.8 MB in the beginning and 105.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-01-20 10:09:13,884 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 139.5 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-01-20 10:09:13,885 INFO L168 Benchmark]: RCFGBuilder took 255.12 ms. Allocated memory is still 139.5 MB. Free memory was 103.8 MB in the beginning and 94.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-01-20 10:09:13,885 INFO L168 Benchmark]: TraceAbstraction took 577725.91 ms. Allocated memory was 139.5 MB in the beginning and 333.4 MB in the end (delta: 194.0 MB). Free memory was 94.6 MB in the beginning and 277.6 MB in the end (delta: -183.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-01-20 10:09:13,887 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 0.18 ms. Allocated memory is still 139.5 MB. Free memory is still 108.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.76 ms. Allocated memory is still 139.5 MB. Free memory was 106.8 MB in the beginning and 105.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.46 ms. Allocated memory is still 139.5 MB. Free memory was 105.0 MB in the beginning and 104.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.12 ms. Allocated memory is still 139.5 MB. Free memory was 103.8 MB in the beginning and 94.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 577725.91 ms. Allocated memory was 139.5 MB in the beginning and 333.4 MB in the end (delta: 194.0 MB). Free memory was 94.6 MB in the beginning and 277.6 MB in the end (delta: -183.0 MB). Peak memory consumption was 11.0 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] && !(0 == 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, 577.6s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 155.9s AutomataDifference, 0.0s DeadEndRemovalTime, 21.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 88 SolverSat, 9 SolverUnsat, 72 SolverUnknown, 0 SolverNotchecked, 154.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 8 SyntacticMatches, 14 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 141.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 10 NumberOfFragments, 73 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 3453 FormulaSimplificationTreeSizeReductionInter, 21.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 396.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 71 ConstructedInterpolants, 18 QuantifiedInterpolants, 66384 SizeOfPredicates, 38 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 26/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...