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-f57a05f [2019-01-07 21:31:14,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-07 21:31:14,517 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-07 21:31:14,543 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-07 21:31:14,543 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-07 21:31:14,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-07 21:31:14,548 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-07 21:31:14,551 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-07 21:31:14,553 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-07 21:31:14,554 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-07 21:31:14,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-07 21:31:14,606 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 [2019-01-07 21:31:14,633 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-07 21:31:14,633 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-07 21:31:14,634 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-07 21:31:14,634 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-07 21:31:14,635 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-07 21:31:14,635 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-07 21:31:14,635 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-07 21:31:14,635 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-07 21:31:14,635 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-07 21:31:14,636 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-07 21:31:14,640 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-07 21:31:14,640 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-07 21:31:14,640 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-07 21:31:14,641 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-07 21:31:14,641 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-07 21:31:14,642 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-07 21:31:14,642 INFO L133 SettingsManager]: * Use SBE=true [2019-01-07 21:31:14,642 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-07 21:31:14,642 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-07 21:31:14,643 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-07 21:31:14,644 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-07 21:31:14,644 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-07 21:31:14,645 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-07 21:31:14,645 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-07 21:31:14,645 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-07 21:31:14,645 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-07 21:31:14,645 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-07 21:31:14,646 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-07 21:31:14,646 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-07 21:31:14,646 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-07 21:31:14,646 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-07 21:31:14,646 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 21:31:14,647 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-07 21:31:14,647 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-07 21:31:14,647 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-07 21:31:14,647 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-07 21:31:14,647 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-07 21:31:14,648 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-07 21:31:14,649 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-07 21:31:14,649 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-07 21:31:14,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-07 21:31:14,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-07 21:31:14,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-07 21:31:14,727 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-07 21:31:14,728 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-07 21:31:14,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-01-07 21:31:14,729 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-01-07 21:31:14,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-07 21:31:14,775 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-07 21:31:14,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-07 21:31:14,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-07 21:31:14,776 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-07 21:31:14,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,816 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-07 21:31:14,816 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-07 21:31:14,816 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-07 21:31:14,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-07 21:31:14,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-07 21:31:14,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-07 21:31:14,820 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-07 21:31:14,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/1) ... [2019-01-07 21:31:14,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-07 21:31:14,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-07 21:31:14,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-07 21:31:14,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-07 21:31:14,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (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 [2019-01-07 21:31:14,919 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-07 21:31:14,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-07 21:31:14,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-07 21:31:15,103 INFO L278 CfgBuilder]: Using library mode [2019-01-07 21:31:15,103 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-07 21:31:15,105 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 09:31:15 BoogieIcfgContainer [2019-01-07 21:31:15,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-07 21:31:15,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-07 21:31:15,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-07 21:31:15,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-07 21:31:15,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 09:31:14" (1/2) ... [2019-01-07 21:31:15,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6890b71f and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 09:31:15, skipping insertion in model container [2019-01-07 21:31:15,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 09:31:15" (2/2) ... [2019-01-07 21:31:15,113 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-01-07 21:31:15,123 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-07 21:31:15,131 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-07 21:31:15,150 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-07 21:31:15,185 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-07 21:31:15,186 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-07 21:31:15,186 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-07 21:31:15,186 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-07 21:31:15,186 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-07 21:31:15,186 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-07 21:31:15,187 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-07 21:31:15,187 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-07 21:31:15,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-07 21:31:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-07 21:31:15,210 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 21:31:15,211 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-07 21:31:15,213 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 21:31:15,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:31:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-01-07 21:31:15,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 21:31:15,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:15,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 21:31:15,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:15,283 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 21:31:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:31:15,706 WARN L181 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-01-07 21:31:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:15,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-07 21:31:15,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-07 21:31:15,752 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-07 21:31:15,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-07 21:31:15,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-07 21:31:15,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-07 21:31:15,772 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-01-07 21:31:15,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 21:31:15,844 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-07 21:31:15,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-07 21:31:15,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-07 21:31:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 21:31:15,858 INFO L225 Difference]: With dead ends: 15 [2019-01-07 21:31:15,858 INFO L226 Difference]: Without dead ends: 5 [2019-01-07 21:31:15,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-07 21:31:15,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-07 21:31:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-07 21:31:15,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-07 21:31:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-07 21:31:15,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-07 21:31:15,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 21:31:15,899 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-07 21:31:15,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-07 21:31:15,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 21:31:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-07 21:31:15,900 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 21:31:15,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-07 21:31:15,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 21:31:15,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:31:15,901 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-01-07 21:31:15,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 21:31:15,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:15,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 21:31:15,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:15,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 21:31:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:31:16,377 WARN L181 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-01-07 21:31:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:16,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:16,403 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 21:31:16,404 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-07 21:31:16,406 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-01-07 21:31:16,445 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-07 21:31:16,446 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-07 21:31:16,512 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-07 21:31:16,513 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. [2019-01-07 21:31:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:31:16,520 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-07 21:31:16,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:16,520 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 [2019-01-07 21:31:16,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 21:31:16,535 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-07 21:31:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:31:16,559 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-07 21:31:16,611 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 [2019-01-07 21:31:16,618 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:16,620 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:16,625 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 [2019-01-07 21:31:16,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:16,677 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:16,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:16,687 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-07 21:31:16,989 WARN L181 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-01-07 21:31:17,002 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,012 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,018 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,179 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 [2019-01-07 21:31:17,199 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,221 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 [2019-01-07 21:31:17,224 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:17,429 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,444 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,452 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,461 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,464 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,466 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,482 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,491 INFO L303 Elim1Store]: Index analysis took 102 ms [2019-01-07 21:31:17,512 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 [2019-01-07 21:31:17,515 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:17,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-07 21:31:17,656 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,662 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,664 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,683 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 [2019-01-07 21:31:17,698 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,700 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:17,702 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 [2019-01-07 21:31:17,704 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:18,010 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,035 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,074 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,096 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,119 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,129 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:18,130 INFO L303 Elim1Store]: Index analysis took 157 ms [2019-01-07 21:31:18,132 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 [2019-01-07 21:31:18,133 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:18,255 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-07 21:31:18,346 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. [2019-01-07 21:31:18,347 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-01-07 21:31:18,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:18,484 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-07 21:31:18,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:18,627 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-07 21:31:18,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-01-07 21:31:18,628 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-07 21:31:18,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-07 21:31:18,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-07 21:31:18,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-07 21:31:18,630 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-01-07 21:31:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 21:31:22,728 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-07 21:31:22,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-07 21:31:22,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-01-07 21:31:22,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 21:31:22,730 INFO L225 Difference]: With dead ends: 8 [2019-01-07 21:31:22,730 INFO L226 Difference]: Without dead ends: 6 [2019-01-07 21:31:22,731 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-07 21:31:22,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-01-07 21:31:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-07 21:31:22,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-07 21:31:22,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-07 21:31:22,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-01-07 21:31:22,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 21:31:22,735 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-07 21:31:22,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-07 21:31:22,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-01-07 21:31:22,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-07 21:31:22,736 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 21:31:22,736 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-01-07 21:31:22,737 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 21:31:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:31:22,737 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-01-07 21:31:22,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 21:31:22,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:22,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 21:31:22,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:22,739 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 21:31:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:31:23,082 WARN L181 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-01-07 21:31:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:23,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:23,101 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 21:31:23,101 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-07 21:31:23,101 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-07 21:31:23,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:23,102 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 [2019-01-07 21:31:23,111 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-07 21:31:23,112 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-07 21:31:23,123 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-07 21:31:23,123 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-07 21:31:23,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-07 21:31:23,138 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 [2019-01-07 21:31:23,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,148 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,149 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 [2019-01-07 21:31:23,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,165 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-07 21:31:23,244 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,266 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,313 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 [2019-01-07 21:31:23,334 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,336 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,338 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,341 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 [2019-01-07 21:31:23,342 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,470 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,471 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,473 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,475 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 [2019-01-07 21:31:23,476 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,602 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-07 21:31:23,614 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,617 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,623 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,642 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 [2019-01-07 21:31:23,656 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,661 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,663 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,685 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 [2019-01-07 21:31:23,688 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,757 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,759 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,760 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:23,771 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 [2019-01-07 21:31:23,772 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:23,833 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-07 21:31:23,917 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. [2019-01-07 21:31:23,918 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-01-07 21:31:24,162 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-01-07 21:31:24,180 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,181 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,184 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,211 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 [2019-01-07 21:31:24,234 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,236 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,238 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,244 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,258 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 [2019-01-07 21:31:24,259 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:24,336 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:24,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,343 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,345 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,348 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 [2019-01-07 21:31:24,357 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,359 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,361 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,365 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:24,366 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 [2019-01-07 21:31:24,367 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:24,403 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:25,517 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,519 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,521 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,523 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,525 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,527 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,537 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,545 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 [2019-01-07 21:31:25,555 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,573 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,577 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,578 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,600 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 [2019-01-07 21:31:25,601 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:25,659 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:25,667 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,668 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,753 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,755 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,760 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,762 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,767 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,767 INFO L303 Elim1Store]: Index analysis took 107 ms [2019-01-07 21:31:25,769 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 [2019-01-07 21:31:25,780 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,782 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,793 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,818 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:25,820 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 [2019-01-07 21:31:25,821 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:26,031 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:26,201 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. [2019-01-07 21:31:26,202 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-01-07 21:31:28,094 WARN L181 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-01-07 21:31:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:28,112 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-07 21:31:28,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-07 21:31:28,232 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-07 21:31:28,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-01-07 21:31:28,233 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-07 21:31:28,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-07 21:31:28,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-07 21:31:28,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-01-07 21:31:28,234 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-01-07 21:31:33,066 WARN L181 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-01-07 21:31:37,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 21:31:37,271 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-01-07 21:31:37,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-07 21:31:37,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-01-07 21:31:37,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 21:31:37,272 INFO L225 Difference]: With dead ends: 10 [2019-01-07 21:31:37,272 INFO L226 Difference]: Without dead ends: 8 [2019-01-07 21:31:37,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-01-07 21:31:37,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-07 21:31:37,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-07 21:31:37,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-07 21:31:37,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-07 21:31:37,276 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-07 21:31:37,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 21:31:37,277 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-07 21:31:37,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-07 21:31:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-07 21:31:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-07 21:31:37,278 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 21:31:37,278 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-01-07 21:31:37,278 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 21:31:37,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:31:37,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-01-07 21:31:37,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 21:31:37,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:37,280 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-07 21:31:37,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:31:37,280 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 21:31:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:31:37,586 WARN L181 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 11 [2019-01-07 21:31:37,791 WARN L181 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-01-07 21:31:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:37,853 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:37,853 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 21:31:37,854 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-07 21:31:37,854 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-07 21:31:37,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:31:37,854 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 [2019-01-07 21:31:37,871 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-07 21:31:37,872 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-07 21:31:38,003 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-07 21:31:38,004 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-07 21:31:38,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-07 21:31:38,022 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 [2019-01-07 21:31:38,032 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,035 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,036 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 [2019-01-07 21:31:38,036 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,051 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,052 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-07 21:31:38,120 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,121 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,122 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 [2019-01-07 21:31:38,166 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,191 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,192 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 [2019-01-07 21:31:38,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,437 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,468 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,489 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,518 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,519 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 [2019-01-07 21:31:38,558 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,564 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,568 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 [2019-01-07 21:31:38,569 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,596 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:38,629 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. [2019-01-07 21:31:38,630 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-07 21:31:38,957 WARN L181 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-07 21:31:38,962 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,963 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,965 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,967 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 [2019-01-07 21:31:38,975 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,976 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,979 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:38,981 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 [2019-01-07 21:31:38,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:39,016 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:39,209 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,231 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,249 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,268 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,270 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,271 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,272 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 21:31:39,274 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,276 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,276 INFO L303 Elim1Store]: Index analysis took 112 ms [2019-01-07 21:31:39,278 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 [2019-01-07 21:31:39,290 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,293 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,295 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,297 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,299 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,301 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 [2019-01-07 21:31:39,304 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:39,386 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:39,445 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. [2019-01-07 21:31:39,446 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-07 21:31:39,850 WARN L181 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-01-07 21:31:39,858 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,859 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,861 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,863 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,866 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,869 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,871 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 [2019-01-07 21:31:39,879 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,880 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,881 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,882 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,883 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:39,885 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 [2019-01-07 21:31:39,887 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:39,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:40,315 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,317 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,318 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,324 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,325 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,325 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 21:31:40,328 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,332 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,337 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,339 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,340 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,347 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,348 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 [2019-01-07 21:31:40,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,366 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,368 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,373 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,377 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:40,379 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 [2019-01-07 21:31:40,380 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:40,519 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:40,664 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. [2019-01-07 21:31:40,664 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-01-07 21:31:41,436 WARN L181 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-01-07 21:31:43,503 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-01-07 21:31:43,515 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,520 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,527 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,530 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,537 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,541 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,543 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,547 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,556 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,557 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 [2019-01-07 21:31:43,581 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,583 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,584 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,586 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,589 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,590 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:43,592 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 [2019-01-07 21:31:43,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:43,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:45,851 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:45,898 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:45,921 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:45,929 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:45,939 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:45,952 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,087 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,092 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,111 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,123 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,144 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,158 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,177 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,184 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,208 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,216 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,217 INFO L303 Elim1Store]: Index analysis took 491 ms [2019-01-07 21:31:46,218 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 [2019-01-07 21:31:46,260 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,263 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,267 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,272 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,279 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,287 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:31:46,289 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 [2019-01-07 21:31:46,290 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:31:46,773 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:31:47,021 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. [2019-01-07 21:31:47,021 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-01-07 21:31:55,839 WARN L181 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-01-07 21:31:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:31:55,865 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-07 21:31:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-07 21:31:59,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-07 21:31:59,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-01-07 21:31:59,006 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-07 21:31:59,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-07 21:31:59,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-07 21:31:59,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=134, Unknown=3, NotChecked=0, Total=210 [2019-01-07 21:31:59,008 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-01-07 21:32:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 21:32:19,697 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-01-07 21:32:19,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-07 21:32:19,697 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-01-07 21:32:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 21:32:19,698 INFO L225 Difference]: With dead ends: 15 [2019-01-07 21:32:19,698 INFO L226 Difference]: Without dead ends: 12 [2019-01-07 21:32:19,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=73, Invalid=134, Unknown=3, NotChecked=0, Total=210 [2019-01-07 21:32:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-07 21:32:19,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-07 21:32:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-07 21:32:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-07 21:32:19,704 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-01-07 21:32:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 21:32:19,704 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-07 21:32:19,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-07 21:32:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-07 21:32:19,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-07 21:32:19,705 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 21:32:19,705 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-01-07 21:32:19,705 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 21:32:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 21:32:19,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-01-07 21:32:19,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 21:32:19,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:32:19,706 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-07 21:32:19,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 21:32:19,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 21:32:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:32:20,245 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2019-01-07 21:32:20,603 WARN L181 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-01-07 21:32:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-07 21:32:20,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:32:20,752 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 21:32:20,752 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-07 21:32:20,753 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-07 21:32:20,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 21:32:20,753 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 [2019-01-07 21:32:20,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 21:32:20,764 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-07 21:32:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 21:32:22,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-07 21:32:22,893 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 [2019-01-07 21:32:22,901 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,904 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 [2019-01-07 21:32:22,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:22,915 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:22,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:22,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-07 21:32:22,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,978 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,979 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 [2019-01-07 21:32:22,985 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:22,988 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 [2019-01-07 21:32:22,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,012 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,021 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,022 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,027 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,028 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 [2019-01-07 21:32:23,036 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,040 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,042 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,043 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 [2019-01-07 21:32:23,043 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,080 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,127 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. [2019-01-07 21:32:23,128 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-07 21:32:23,359 WARN L181 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-07 21:32:23,389 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,391 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,392 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 [2019-01-07 21:32:23,396 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,397 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,398 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,399 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,400 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 [2019-01-07 21:32:23,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,536 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,540 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,541 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 21:32:23,542 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,544 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,546 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,549 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,550 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 [2019-01-07 21:32:23,559 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,561 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,565 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,567 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:23,569 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 [2019-01-07 21:32:23,570 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,630 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:23,698 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. [2019-01-07 21:32:23,698 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-07 21:32:24,776 WARN L181 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-01-07 21:32:24,783 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 21:32:24,792 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,796 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,799 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,808 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,820 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,832 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,843 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,853 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,853 INFO L683 Elim1Store]: detected equality via solver [2019-01-07 21:32:24,870 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,873 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,879 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,900 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,900 INFO L303 Elim1Store]: Index analysis took 123 ms [2019-01-07 21:32:24,902 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 [2019-01-07 21:32:24,909 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,911 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,913 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,916 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,918 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:24,920 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 [2019-01-07 21:32:24,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:25,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:25,687 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,689 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,691 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,692 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,694 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,695 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,697 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 [2019-01-07 21:32:25,704 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,705 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,706 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,708 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,711 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:25,712 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 [2019-01-07 21:32:25,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:25,779 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:25,953 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. [2019-01-07 21:32:25,953 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-01-07 21:32:28,697 WARN L181 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-01-07 21:32:33,952 WARN L181 SmtUtils]: Spent 5.25 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-01-07 21:32:33,958 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,961 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,963 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,968 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,970 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,972 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,974 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,975 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,976 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,978 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,980 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 [2019-01-07 21:32:33,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,989 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,991 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,993 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,996 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:33,999 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:34,000 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 [2019-01-07 21:32:34,001 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:34,113 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:35,706 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,729 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,809 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,847 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,924 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,944 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:35,984 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,002 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,009 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,066 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,132 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,155 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,187 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,277 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,282 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,283 INFO L303 Elim1Store]: Index analysis took 656 ms [2019-01-07 21:32:36,284 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 [2019-01-07 21:32:36,299 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,302 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,303 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,307 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,310 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,312 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:36,313 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 [2019-01-07 21:32:36,314 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:36,666 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:37,260 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. [2019-01-07 21:32:37,261 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-01-07 21:32:45,033 WARN L181 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-01-07 21:32:51,521 WARN L181 SmtUtils]: Spent 6.48 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-01-07 21:32:51,531 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,547 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,557 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,564 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,571 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,588 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,594 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,605 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,616 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,626 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,633 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,643 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,659 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,664 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,665 INFO L303 Elim1Store]: Index analysis took 142 ms [2019-01-07 21:32:51,666 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 [2019-01-07 21:32:51,680 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,684 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,686 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,687 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,693 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,695 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,696 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:51,698 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 [2019-01-07 21:32:51,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:51,889 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:55,064 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,187 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,230 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,241 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,309 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,417 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,449 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,586 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,604 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,680 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,777 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,819 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,847 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:55,893 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,164 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,201 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,274 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,320 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,321 INFO L303 Elim1Store]: Index analysis took 1302 ms [2019-01-07 21:32:56,322 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 [2019-01-07 21:32:56,361 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,365 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,375 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,383 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,390 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,399 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,406 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:32:56,408 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 [2019-01-07 21:32:56,412 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:32:57,255 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:32:58,451 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. [2019-01-07 21:32:58,452 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-01-07 21:33:13,827 WARN L181 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 72 [2019-01-07 21:33:31,974 WARN L181 SmtUtils]: Spent 18.14 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-01-07 21:33:32,287 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:32,473 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:32,492 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:32,667 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:32,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:32,941 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,042 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,115 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,225 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,625 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,663 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,717 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,818 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,886 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:33,912 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,026 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,394 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,566 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,708 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,833 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:34,947 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,036 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,132 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,318 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,348 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,429 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,667 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,742 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,743 INFO L303 Elim1Store]: Index analysis took 3767 ms [2019-01-07 21:33:35,744 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 [2019-01-07 21:33:35,964 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,965 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:35,971 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,000 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,003 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,005 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,017 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,027 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:36,027 INFO L303 Elim1Store]: Index analysis took 278 ms [2019-01-07 21:33:36,028 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 [2019-01-07 21:33:36,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:33:38,338 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:33:57,033 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,035 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,038 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,049 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,053 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,058 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,062 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,082 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,089 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,102 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,107 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,112 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,114 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,135 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,138 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,139 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,142 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,144 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,148 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,150 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,151 INFO L303 Elim1Store]: Index analysis took 128 ms [2019-01-07 21:33:57,152 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 [2019-01-07 21:33:57,204 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,226 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,235 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,237 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,240 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,241 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,244 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,246 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:33:57,248 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 [2019-01-07 21:33:57,249 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:33:57,587 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:33:59,713 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. [2019-01-07 21:33:59,713 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-01-07 21:34:25,271 WARN L181 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 81 [2019-01-07 21:34:44,411 WARN L181 SmtUtils]: Spent 19.13 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-01-07 21:34:44,571 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:44,601 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:44,700 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:44,772 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:44,923 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,105 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,229 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,314 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,610 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,661 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,748 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,842 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:45,933 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,019 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,118 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,294 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,412 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,716 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:46,955 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:47,129 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:48,273 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:48,379 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:48,590 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:48,706 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:48,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,027 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,453 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,559 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,700 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,741 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,828 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,854 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,877 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,902 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:49,903 INFO L303 Elim1Store]: Index analysis took 5490 ms [2019-01-07 21:34:49,905 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 [2019-01-07 21:34:50,063 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,066 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,069 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,075 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,078 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,080 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,087 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,089 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,091 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:34:50,092 INFO L303 Elim1Store]: Index analysis took 183 ms [2019-01-07 21:34:50,095 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 [2019-01-07 21:34:50,096 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:34:57,691 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:35:22,669 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,674 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,683 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,689 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,693 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,694 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,700 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,707 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,715 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,742 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,760 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,770 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,772 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,774 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,803 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,804 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,805 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,806 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,808 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,810 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,817 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,841 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,862 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,866 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,873 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,883 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,884 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,905 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,905 INFO L303 Elim1Store]: Index analysis took 282 ms [2019-01-07 21:35:22,907 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 [2019-01-07 21:35:22,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,958 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,960 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,964 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,965 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,967 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,969 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,979 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:35:22,981 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 [2019-01-07 21:35:22,982 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:35:23,852 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:35:26,172 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. [2019-01-07 21:35:26,173 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-01-07 21:35:59,685 WARN L181 SmtUtils]: Spent 2.89 s on a formula simplification that was a NOOP. DAG size: 89 [2019-01-07 21:36:39,660 WARN L181 SmtUtils]: Spent 39.96 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-01-07 21:36:39,926 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:39,984 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,072 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,164 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,220 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,356 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,397 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,573 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,749 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:40,971 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:41,312 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:41,876 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:41,997 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:42,338 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:42,586 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:42,689 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:43,580 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:43,639 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:43,722 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:43,875 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:43,960 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:44,327 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:44,500 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:44,696 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:44,857 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:44,894 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,101 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,188 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,501 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,602 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,708 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,835 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:45,979 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:46,038 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:46,386 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:46,688 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:46,790 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:46,884 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,051 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,124 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,694 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,825 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:47,849 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,137 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,138 INFO L303 Elim1Store]: Index analysis took 8476 ms [2019-01-07 21:36:48,139 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 [2019-01-07 21:36:48,409 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,422 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,430 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,730 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,736 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,743 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,846 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,850 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,860 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:36:48,861 INFO L303 Elim1Store]: Index analysis took 715 ms [2019-01-07 21:36:48,862 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 [2019-01-07 21:36:48,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-07 21:37:00,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:37:50,767 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,769 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,807 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,809 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,811 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,891 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,906 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,908 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,925 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,956 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,980 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,981 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,983 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,985 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,989 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,991 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:50,994 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,071 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,106 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,114 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,137 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,138 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,156 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,184 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,204 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,243 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,262 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,279 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,349 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,371 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,416 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,425 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,475 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,476 INFO L303 Elim1Store]: Index analysis took 743 ms [2019-01-07 21:37:51,477 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 [2019-01-07 21:37:51,523 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,526 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,528 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,530 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,532 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,538 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,540 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,546 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,550 INFO L701 Elim1Store]: detected not equals via solver [2019-01-07 21:37:51,553 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 [2019-01-07 21:37:51,554 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-07 21:37:52,924 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-07 21:38:00,408 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. [2019-01-07 21:38:00,409 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-01-07 21:38:34,638 WARN L181 SmtUtils]: Spent 4.07 s on a formula simplification that was a NOOP. DAG size: 96 [2019-01-07 21:38:34,659 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 21:38:34,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-07 21:38:38,127 WARN L181 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 36 [2019-01-07 21:39:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 15 refuted. 7 times theorem prover too weak. 9 trivial. 0 not checked. [2019-01-07 21:39:10,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-07 21:39:10,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 5] total 20 [2019-01-07 21:39:10,947 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-07 21:39:10,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-07 21:39:10,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-07 21:39:10,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=234, Unknown=49, NotChecked=0, Total=420 [2019-01-07 21:39:10,948 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-01-07 21:41:12,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 21:41:12,848 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-07 21:41:12,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-07 21:41:12,859 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-01-07 21:41:12,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 21:41:12,859 INFO L225 Difference]: With dead ends: 13 [2019-01-07 21:41:12,859 INFO L226 Difference]: Without dead ends: 0 [2019-01-07 21:41:12,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 156.3s TimeCoverageRelationStatistics Valid=137, Invalid=234, Unknown=49, NotChecked=0, Total=420 [2019-01-07 21:41:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-07 21:41:12,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-07 21:41:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-07 21:41:12,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-07 21:41:12,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-07 21:41:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 21:41:12,861 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-07 21:41:12,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-07 21:41:12,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 21:41:12,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 21:41:12,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-07 21:41:30,200 WARN L181 SmtUtils]: Spent 17.30 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-01-07 21:41:30,204 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-01-07 21:41:30,205 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-01-07 21:41:30,205 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-01-07 21:41:30,205 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-01-07 21:41:30,205 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-01-07 21:41:30,205 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)))))) [2019-01-07 21:41:30,225 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 09:41:30 BoogieIcfgContainer [2019-01-07 21:41:30,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-07 21:41:30,227 INFO L168 Benchmark]: Toolchain (without parser) took 615453.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -636.4 MB). Peak memory consumption was 152.1 MB. Max. memory is 7.1 GB. [2019-01-07 21:41:30,227 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 21:41:30,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 21:41:30,228 INFO L168 Benchmark]: Boogie Preprocessor took 28.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-07 21:41:30,228 INFO L168 Benchmark]: RCFGBuilder took 253.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-01-07 21:41:30,229 INFO L168 Benchmark]: TraceAbstraction took 615120.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -657.5 MB). Peak memory consumption was 131.0 MB. Max. memory is 7.1 GB. [2019-01-07 21:41:30,231 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 253.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 615120.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 788.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -657.5 MB). Peak memory consumption was 131.0 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, 615.0s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 155.8s AutomataDifference, 0.0s DeadEndRemovalTime, 17.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 85 SolverSat, 9 SolverUnsat, 74 SolverUnknown, 0 SolverNotchecked, 154.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 13 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 173.4s 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, 17.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 438.7s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 71 ConstructedInterpolants, 18 QuantifiedInterpolants, 91344 SizeOfPredicates, 38 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 25/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...