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 0.1.24-1de736e-m [2019-02-15 10:46:44,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-15 10:46:44,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-15 10:46:44,549 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-15 10:46:44,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-15 10:46:44,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-15 10:46:44,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-15 10:46:44,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-15 10:46:44,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-15 10:46:44,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-15 10:46:44,557 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-02-15 10:46:44,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-02-15 10:46:44,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-02-15 10:46:44,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-02-15 10:46:44,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-02-15 10:46:44,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-02-15 10:46:44,562 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-02-15 10:46:44,564 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-02-15 10:46:44,566 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-02-15 10:46:44,568 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-02-15 10:46:44,569 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-02-15 10:46:44,570 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-02-15 10:46:44,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-02-15 10:46:44,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-02-15 10:46:44,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-02-15 10:46:44,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-02-15 10:46:44,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-02-15 10:46:44,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-02-15 10:46:44,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-02-15 10:46:44,577 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-02-15 10:46:44,578 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-02-15 10:46:44,578 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-02-15 10:46:44,579 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-02-15 10:46:44,579 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-02-15 10:46:44,580 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-02-15 10:46:44,581 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-02-15 10:46:44,582 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 [2019-02-15 10:46:44,607 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-15 10:46:44,607 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-15 10:46:44,609 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-15 10:46:44,609 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-15 10:46:44,609 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-15 10:46:44,609 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-15 10:46:44,610 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-15 10:46:44,610 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-15 10:46:44,610 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-15 10:46:44,611 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-15 10:46:44,611 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-15 10:46:44,611 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-02-15 10:46:44,611 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-15 10:46:44,611 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-15 10:46:44,612 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-15 10:46:44,612 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-15 10:46:44,612 INFO L133 SettingsManager]: * Use SBE=true [2019-02-15 10:46:44,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-15 10:46:44,614 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-15 10:46:44,614 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-15 10:46:44,615 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-15 10:46:44,615 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-15 10:46:44,615 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-15 10:46:44,615 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-15 10:46:44,616 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-15 10:46:44,616 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-15 10:46:44,616 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-15 10:46:44,616 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-15 10:46:44,616 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-15 10:46:44,617 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-15 10:46:44,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-15 10:46:44,617 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-02-15 10:46:44,617 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-15 10:46:44,617 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-15 10:46:44,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-15 10:46:44,618 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-15 10:46:44,618 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-15 10:46:44,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-02-15 10:46:44,619 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-15 10:46:44,619 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-15 10:46:44,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-15 10:46:44,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-15 10:46:44,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-15 10:46:44,682 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-15 10:46:44,682 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-15 10:46:44,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-02-15 10:46:44,683 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-02-15 10:46:44,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-15 10:46:44,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-15 10:46:44,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-15 10:46:44,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-15 10:46:44,712 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-15 10:46:44,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,744 WARN L165 Inliner]: Program contained no entry procedure! [2019-02-15 10:46:44,744 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-02-15 10:46:44,744 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-02-15 10:46:44,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-15 10:46:44,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-15 10:46:44,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-15 10:46:44,747 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-15 10:46:44,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/1) ... [2019-02-15 10:46:44,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-15 10:46:44,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-15 10:46:44,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-15 10:46:44,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-15 10:46:44,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (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 [2019-02-15 10:46:44,846 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-02-15 10:46:44,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-02-15 10:46:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-02-15 10:46:45,078 INFO L278 CfgBuilder]: Using library mode [2019-02-15 10:46:45,079 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-02-15 10:46:45,080 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:46:45 BoogieIcfgContainer [2019-02-15 10:46:45,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-15 10:46:45,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-15 10:46:45,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-15 10:46:45,084 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-15 10:46:45,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.02 10:46:44" (1/2) ... [2019-02-15 10:46:45,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cb2a28 and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:46:45, skipping insertion in model container [2019-02-15 10:46:45,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:46:45" (2/2) ... [2019-02-15 10:46:45,088 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-02-15 10:46:45,097 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-15 10:46:45,104 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-15 10:46:45,118 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-15 10:46:45,146 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-15 10:46:45,146 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-15 10:46:45,147 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-15 10:46:45,147 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-15 10:46:45,147 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-15 10:46:45,147 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-15 10:46:45,147 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-15 10:46:45,147 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-15 10:46:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-02-15 10:46:45,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-15 10:46:45,168 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 10:46:45,168 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-15 10:46:45,171 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 10:46:45,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:46:45,177 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-02-15 10:46:45,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 10:46:45,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:45,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 10:46:45,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:45,217 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 10:46:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:46:45,502 WARN L181 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-02-15 10:46:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:45,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-15 10:46:45,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-02-15 10:46:45,541 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-15 10:46:45,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-15 10:46:45,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-15 10:46:45,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-15 10:46:45,563 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-02-15 10:46:45,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 10:46:45,635 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-02-15 10:46:45,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-15 10:46:45,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-02-15 10:46:45,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 10:46:45,650 INFO L225 Difference]: With dead ends: 15 [2019-02-15 10:46:45,650 INFO L226 Difference]: Without dead ends: 5 [2019-02-15 10:46:45,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-15 10:46:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-02-15 10:46:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-02-15 10:46:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-02-15 10:46:45,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-02-15 10:46:45,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-02-15 10:46:45,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 10:46:45,689 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-02-15 10:46:45,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-15 10:46:45,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-02-15 10:46:45,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-02-15 10:46:45,690 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 10:46:45,690 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-02-15 10:46:45,690 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 10:46:45,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:46:45,691 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-02-15 10:46:45,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 10:46:45,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:45,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 10:46:45,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:45,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 10:46:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:46:46,104 WARN L181 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-02-15 10:46:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:46,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:46:46,120 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 10:46:46,121 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-02-15 10:46:46,123 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-02-15 10:46:46,189 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-02-15 10:46:46,189 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-15 10:46:46,263 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-15 10:46:46,265 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. [2019-02-15 10:46:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:46:46,271 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-15 10:46:46,271 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:46:46,272 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 [2019-02-15 10:46:46,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 10:46:46,289 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-15 10:46:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:46:46,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 10:46:46,363 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 [2019-02-15 10:46:46,382 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,384 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,388 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 [2019-02-15 10:46:46,389 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:46,456 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:46,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:46,469 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 10:46:46,732 WARN L181 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-02-15 10:46:46,748 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,756 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,766 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,892 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 [2019-02-15 10:46:46,953 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,956 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:46,985 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 [2019-02-15 10:46:46,986 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:47,145 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,148 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,152 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,154 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,158 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,160 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,166 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,214 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 [2019-02-15 10:46:47,217 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:47,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 10:46:47,322 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,324 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,326 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,339 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 [2019-02-15 10:46:47,356 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,357 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,359 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 [2019-02-15 10:46:47,361 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:47,612 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,637 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,652 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,676 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,695 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,720 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,736 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:47,736 INFO L303 Elim1Store]: Index analysis took 149 ms [2019-02-15 10:46:47,738 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 [2019-02-15 10:46:47,739 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:47,818 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 10:46:47,902 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. [2019-02-15 10:46:47,903 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-02-15 10:46:48,047 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2019-02-15 10:46:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:48,060 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 10:46:48,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:48,150 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 10:46:48,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-02-15 10:46:48,151 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 10:46:48,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-02-15 10:46:48,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-02-15 10:46:48,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-02-15 10:46:48,153 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-02-15 10:46:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 10:46:52,253 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-02-15 10:46:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-02-15 10:46:52,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-02-15 10:46:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 10:46:52,254 INFO L225 Difference]: With dead ends: 8 [2019-02-15 10:46:52,254 INFO L226 Difference]: Without dead ends: 6 [2019-02-15 10:46:52,255 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-02-15 10:46:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-02-15 10:46:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-02-15 10:46:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-02-15 10:46:52,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-02-15 10:46:52,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-02-15 10:46:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 10:46:52,259 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-02-15 10:46:52,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-02-15 10:46:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-02-15 10:46:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-02-15 10:46:52,260 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 10:46:52,260 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-02-15 10:46:52,260 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 10:46:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:46:52,260 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-02-15 10:46:52,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 10:46:52,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:52,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 10:46:52,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:46:52,262 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 10:46:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:46:52,572 WARN L181 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-02-15 10:46:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:52,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:46:52,596 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 10:46:52,596 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 10:46:52,596 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 10:46:52,596 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:46:52,596 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 [2019-02-15 10:46:52,623 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-02-15 10:46:52,623 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-02-15 10:46:52,646 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-02-15 10:46:52,646 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-15 10:46:52,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 10:46:52,658 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 [2019-02-15 10:46:52,662 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,665 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,666 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 [2019-02-15 10:46:52,667 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:52,684 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:52,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:52,693 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 10:46:52,761 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,774 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,778 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,822 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 [2019-02-15 10:46:52,829 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,831 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,833 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,834 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 [2019-02-15 10:46:52,835 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:52,928 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,930 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,931 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:52,933 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 [2019-02-15 10:46:52,934 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:52,999 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 10:46:53,008 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,011 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,017 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 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 [2019-02-15 10:46:53,042 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,045 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,046 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,061 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 [2019-02-15 10:46:53,063 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:53,130 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,132 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,133 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,146 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 [2019-02-15 10:46:53,147 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:53,181 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-02-15 10:46:53,256 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. [2019-02-15 10:46:53,257 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-02-15 10:46:53,517 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-02-15 10:46:53,526 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,532 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,535 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,542 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 [2019-02-15 10:46:53,555 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,556 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,557 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,562 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,590 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 [2019-02-15 10:46:53,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:53,669 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:53,673 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,674 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,676 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,678 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 [2019-02-15 10:46:53,696 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,698 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,700 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,782 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:53,782 INFO L303 Elim1Store]: Index analysis took 102 ms [2019-02-15 10:46:53,783 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 [2019-02-15 10:46:53,785 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:53,832 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:54,774 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,776 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,778 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,780 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,783 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,785 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,795 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,802 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 [2019-02-15 10:46:54,824 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,832 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,835 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,837 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,857 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 [2019-02-15 10:46:54,859 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:54,912 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:54,916 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,924 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,925 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,927 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,929 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,932 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,934 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,936 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 [2019-02-15 10:46:54,943 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,945 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,965 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,989 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:46:54,991 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 [2019-02-15 10:46:54,992 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-02-15 10:46:55,140 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:46:55,242 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. [2019-02-15 10:46:55,243 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-02-15 10:46:55,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:46:55,474 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 10:46:55,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-02-15 10:46:55,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 10:46:55,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-02-15 10:46:55,557 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 10:46:55,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-02-15 10:46:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-02-15 10:46:55,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-02-15 10:46:55,558 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-02-15 10:47:02,119 WARN L181 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-02-15 10:47:06,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 10:47:06,294 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-02-15 10:47:06,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-02-15 10:47:06,295 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-02-15 10:47:06,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 10:47:06,296 INFO L225 Difference]: With dead ends: 10 [2019-02-15 10:47:06,296 INFO L226 Difference]: Without dead ends: 8 [2019-02-15 10:47:06,297 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-02-15 10:47:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-02-15 10:47:06,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-02-15 10:47:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-15 10:47:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-02-15 10:47:06,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-02-15 10:47:06,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 10:47:06,300 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-02-15 10:47:06,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-02-15 10:47:06,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-15 10:47:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-02-15 10:47:06,301 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 10:47:06,301 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-02-15 10:47:06,301 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 10:47:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:47:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-02-15 10:47:06,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 10:47:06,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:47:06,302 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-15 10:47:06,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:47:06,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 10:47:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:47:06,826 WARN L181 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-02-15 10:47:06,938 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:47:06,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:47:06,938 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 10:47:06,939 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 10:47:06,939 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 10:47:06,939 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:47:06,940 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 [2019-02-15 10:47:06,958 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-02-15 10:47:06,958 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-02-15 10:47:07,084 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-02-15 10:47:07,084 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-02-15 10:47:07,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 10:47:07,093 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 [2019-02-15 10:47:07,097 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,100 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,100 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 [2019-02-15 10:47:07,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,115 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 10:47:07,181 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,182 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,182 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 [2019-02-15 10:47:07,186 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,187 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,189 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 [2019-02-15 10:47:07,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,225 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,226 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,228 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,230 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 [2019-02-15 10:47:07,235 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,236 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,238 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,240 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 [2019-02-15 10:47:07,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,497 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,532 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. [2019-02-15 10:47:07,532 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-02-15 10:47:07,751 WARN L181 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-02-15 10:47:07,758 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,759 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,760 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,762 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 [2019-02-15 10:47:07,776 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,777 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,778 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,780 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,782 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 [2019-02-15 10:47:07,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,820 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:07,956 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,958 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,978 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,994 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,995 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,999 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:07,999 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 10:47:08,001 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,002 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,003 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 [2019-02-15 10:47:08,039 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,061 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,088 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,103 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,105 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,106 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 [2019-02-15 10:47:08,107 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:08,182 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:08,232 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. [2019-02-15 10:47:08,233 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-02-15 10:47:08,814 WARN L181 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-02-15 10:47:08,822 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,824 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,827 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,829 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,830 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,831 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,832 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 [2019-02-15 10:47:08,841 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,843 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,845 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,848 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,850 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:08,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 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 [2019-02-15 10:47:08,853 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:08,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:09,154 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,156 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,158 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,164 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,165 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,166 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 10:47:09,167 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,170 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,178 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,189 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,192 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,201 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,203 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,204 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 [2019-02-15 10:47:09,252 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,253 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,255 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,257 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,259 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:09,261 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 [2019-02-15 10:47:09,263 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:09,426 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:09,502 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. [2019-02-15 10:47:09,502 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-02-15 10:47:13,177 WARN L181 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 59 [2019-02-15 10:47:18,839 WARN L181 SmtUtils]: Spent 5.66 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-02-15 10:47:18,848 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,852 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,856 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,860 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,863 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,871 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,876 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,882 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,885 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,891 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,892 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 [2019-02-15 10:47:18,900 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,901 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,902 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,904 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,906 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,908 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:18,910 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 [2019-02-15 10:47:18,911 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:19,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:22,543 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,590 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,653 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,688 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,712 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,744 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,775 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,784 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,809 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,876 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,900 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:22,908 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,025 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,045 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,065 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,084 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,085 INFO L303 Elim1Store]: Index analysis took 606 ms [2019-02-15 10:47:23,086 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 [2019-02-15 10:47:23,166 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,187 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,190 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,194 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,197 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,216 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:23,216 INFO L303 Elim1Store]: Index analysis took 127 ms [2019-02-15 10:47:23,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 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 [2019-02-15 10:47:23,218 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:23,510 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:23,760 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. [2019-02-15 10:47:23,761 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-02-15 10:47:34,738 WARN L181 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-02-15 10:47:34,746 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:47:34,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 10:47:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-02-15 10:47:36,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 10:47:36,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-02-15 10:47:36,137 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 10:47:36,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-02-15 10:47:36,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-02-15 10:47:36,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2019-02-15 10:47:36,140 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-02-15 10:47:55,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 10:47:55,101 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-02-15 10:47:55,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-02-15 10:47:55,102 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-02-15 10:47:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 10:47:55,103 INFO L225 Difference]: With dead ends: 15 [2019-02-15 10:47:55,103 INFO L226 Difference]: Without dead ends: 12 [2019-02-15 10:47:55,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2019-02-15 10:47:55,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-02-15 10:47:55,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-02-15 10:47:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-02-15 10:47:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-02-15 10:47:55,108 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-02-15 10:47:55,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 10:47:55,108 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-02-15 10:47:55,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-02-15 10:47:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-02-15 10:47:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-02-15 10:47:55,109 INFO L394 BasicCegarLoop]: Found error trace [2019-02-15 10:47:55,109 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-02-15 10:47:55,109 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-02-15 10:47:55,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-15 10:47:55,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-02-15 10:47:55,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-15 10:47:55,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:47:55,110 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-02-15 10:47:55,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-15 10:47:55,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-15 10:47:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:47:55,634 WARN L181 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2019-02-15 10:47:55,932 WARN L181 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-02-15 10:47:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-02-15 10:47:56,191 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:47:56,191 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-15 10:47:56,191 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-02-15 10:47:56,191 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-02-15 10:47:56,192 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-15 10:47:56,192 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 [2019-02-15 10:47:56,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-15 10:47:56,201 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-15 10:47:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-15 10:47:58,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-02-15 10:47:58,273 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 [2019-02-15 10:47:58,278 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,280 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,281 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 [2019-02-15 10:47:58,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,294 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,304 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,305 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-02-15 10:47:58,352 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,353 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,354 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 [2019-02-15 10:47:58,360 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,361 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,362 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 [2019-02-15 10:47:58,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,386 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,387 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,388 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,390 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 [2019-02-15 10:47:58,394 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,395 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,397 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,399 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 [2019-02-15 10:47:58,408 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,429 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,461 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-02-15 10:47:58,462 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-02-15 10:47:58,670 WARN L181 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-02-15 10:47:58,674 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,675 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,677 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,678 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 [2019-02-15 10:47:58,682 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,683 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,684 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,685 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,687 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 [2019-02-15 10:47:58,687 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,818 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,819 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,820 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,821 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 10:47:58,822 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,823 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,825 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,828 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,829 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 [2019-02-15 10:47:58,838 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,839 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,842 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,843 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:47:58,844 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 [2019-02-15 10:47:58,845 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,898 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:47:58,991 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. [2019-02-15 10:47:58,992 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-02-15 10:48:00,145 WARN L181 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-02-15 10:48:00,156 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 10:48:00,159 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,162 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,166 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,180 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,186 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,193 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,209 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,214 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,214 INFO L683 Elim1Store]: detected equality via solver [2019-02-15 10:48:00,221 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,228 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,232 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,239 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,241 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 [2019-02-15 10:48:00,248 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,251 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,252 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,255 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,257 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,259 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 [2019-02-15 10:48:00,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:00,376 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:00,964 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,966 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,968 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,970 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,972 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,974 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,975 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 [2019-02-15 10:48:00,997 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,998 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:00,999 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:01,001 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:01,002 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:01,003 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 [2019-02-15 10:48:01,004 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:01,077 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:01,233 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. [2019-02-15 10:48:01,234 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-02-15 10:48:03,156 WARN L181 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 57 [2019-02-15 10:48:05,282 WARN L181 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-02-15 10:48:05,287 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,288 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,289 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,290 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,292 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,294 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,295 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,296 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,300 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,303 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,304 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 [2019-02-15 10:48:05,313 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,315 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,321 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,322 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,323 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,325 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:05,326 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 [2019-02-15 10:48:05,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:05,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:10,590 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,604 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,636 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,671 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,687 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,717 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,751 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,793 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,802 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,818 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,837 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,842 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,858 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,861 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,881 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,909 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:10,909 INFO L303 Elim1Store]: Index analysis took 375 ms [2019-02-15 10:48:10,910 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 [2019-02-15 10:48:11,001 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,009 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,029 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,032 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,038 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,044 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:11,045 INFO L303 Elim1Store]: Index analysis took 131 ms [2019-02-15 10:48:11,046 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 [2019-02-15 10:48:11,046 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:11,455 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:11,863 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. [2019-02-15 10:48:11,864 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-02-15 10:48:19,755 WARN L181 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-02-15 10:48:26,365 WARN L181 SmtUtils]: Spent 6.60 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-02-15 10:48:26,380 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,391 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,396 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,410 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,419 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,442 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,449 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,457 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,464 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,471 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,478 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,489 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,495 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,502 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,511 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,511 INFO L303 Elim1Store]: Index analysis took 145 ms [2019-02-15 10:48:26,512 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 [2019-02-15 10:48:26,521 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,523 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,525 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,528 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,530 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,532 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,534 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:26,536 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 [2019-02-15 10:48:26,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:26,738 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:31,287 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,316 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,352 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,362 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,390 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,461 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,557 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,592 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,632 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,666 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,756 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,780 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,829 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,838 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,920 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,939 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,958 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:31,988 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,070 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,125 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,160 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,273 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,274 INFO L303 Elim1Store]: Index analysis took 1045 ms [2019-02-15 10:48:32,275 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 [2019-02-15 10:48:32,336 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,359 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,392 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,416 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,443 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,464 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,487 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:48:32,487 INFO L303 Elim1Store]: Index analysis took 203 ms [2019-02-15 10:48:32,489 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 [2019-02-15 10:48:32,490 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:48:33,537 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:48:36,230 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. [2019-02-15 10:48:36,231 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-02-15 10:48:54,700 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 72 [2019-02-15 10:49:12,982 WARN L181 SmtUtils]: Spent 18.28 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-02-15 10:49:13,167 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,262 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,331 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,578 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,762 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,848 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,932 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:13,973 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,107 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,211 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,375 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,464 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,493 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,599 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,701 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,809 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,892 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:14,921 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,053 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,124 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,192 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,248 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,324 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,388 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,477 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,487 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,571 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,594 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,626 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,626 INFO L303 Elim1Store]: Index analysis took 2643 ms [2019-02-15 10:49:15,627 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 [2019-02-15 10:49:15,818 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,820 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,821 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,824 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,827 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,834 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,836 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,837 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:15,838 INFO L303 Elim1Store]: Index analysis took 206 ms [2019-02-15 10:49:15,839 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 [2019-02-15 10:49:15,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:49:19,604 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:49:33,900 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,908 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,910 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,912 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,915 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,919 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,921 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,922 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,923 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,925 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,927 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,938 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:33,945 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,326 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,329 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,330 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,332 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,334 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,336 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,340 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,341 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,341 INFO L303 Elim1Store]: Index analysis took 449 ms [2019-02-15 10:49:34,343 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 [2019-02-15 10:49:34,359 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,360 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,361 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,363 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,365 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,370 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,372 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,373 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:49:34,374 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 [2019-02-15 10:49:34,376 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:49:34,703 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:49:38,840 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. [2019-02-15 10:49:38,840 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-02-15 10:50:07,280 WARN L181 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 81 [2019-02-15 10:50:26,209 WARN L181 SmtUtils]: Spent 18.92 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-02-15 10:50:26,416 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:26,594 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:26,770 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:26,806 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:26,893 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:26,938 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,253 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,409 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,459 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,564 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,650 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,658 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,745 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,761 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,869 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:27,958 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,016 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,058 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,099 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,135 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,205 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,259 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,366 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,379 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,431 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,496 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,605 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,621 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,756 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,817 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,922 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:28,985 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,005 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,041 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,180 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,233 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,312 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,313 INFO L303 Elim1Store]: Index analysis took 3100 ms [2019-02-15 10:50:29,314 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 [2019-02-15 10:50:29,353 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,355 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,362 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,364 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,373 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,377 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,397 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,401 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,411 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:50:29,414 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 [2019-02-15 10:50:29,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:50:32,800 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:51:07,275 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,285 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,288 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,289 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,290 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,310 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,337 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,344 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,368 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,370 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,371 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,372 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,374 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,383 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,384 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,386 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,387 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,389 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,391 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,401 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,402 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,415 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,422 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,428 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,434 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,435 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,437 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,438 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,439 INFO L303 Elim1Store]: Index analysis took 177 ms [2019-02-15 10:51:07,441 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 [2019-02-15 10:51:07,484 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,488 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,510 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,513 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,514 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,515 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,518 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,520 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,523 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:51:07,525 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 [2019-02-15 10:51:07,527 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:51:08,377 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:51:13,842 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. [2019-02-15 10:51:13,842 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-02-15 10:51:47,505 WARN L181 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 89 [2019-02-15 10:52:25,454 WARN L181 SmtUtils]: Spent 37.94 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-02-15 10:52:26,042 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:26,192 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:26,303 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:26,830 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:26,904 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,019 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,179 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,220 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,221 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,375 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,550 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,780 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:27,902 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,017 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,136 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,318 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,514 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,617 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,768 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,849 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:28,945 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:30,954 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (let ((.cse0 (mod (+ (mod (+ (mod (+ v_subst_4 1) 256) 1) 256) 1) 256))) (= .cse0 (mod (+ (mod (+ .cse0 1) 256) 1) 256))) [2019-02-15 10:52:30,955 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,242 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,336 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,417 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,499 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,670 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:31,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:32,093 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:32,161 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:32,287 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:32,426 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:34,432 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (let ((.cse0 (mod (+ (mod (+ (mod (+ v_subst_4 1) 256) 1) 256) 1) 256))) (= .cse0 (mod (+ (mod (+ (mod (+ (mod (+ .cse0 1) 256) 1) 256) 1) 256) 1) 256))) [2019-02-15 10:52:34,434 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:34,494 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:34,720 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:34,951 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,082 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,262 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,400 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,526 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,624 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,882 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:35,884 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:36,016 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:36,486 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:36,663 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:36,664 INFO L303 Elim1Store]: Index analysis took 11208 ms [2019-02-15 10:52:36,665 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 [2019-02-15 10:52:37,180 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,184 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,200 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,202 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,215 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,226 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,232 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,332 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,337 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,412 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:52:37,413 INFO L303 Elim1Store]: Index analysis took 740 ms [2019-02-15 10:52:37,414 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 [2019-02-15 10:52:37,416 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-02-15 10:52:48,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:53:37,518 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,522 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,524 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,525 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,526 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,528 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,556 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,571 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,573 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,574 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,607 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,656 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,693 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,718 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,733 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,736 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,738 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,742 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,743 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,749 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,750 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,752 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,753 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,755 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,757 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,759 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,760 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,776 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,790 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,791 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,795 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:37,828 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,078 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,080 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,082 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,084 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,084 INFO L303 Elim1Store]: Index analysis took 589 ms [2019-02-15 10:53:38,086 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 [2019-02-15 10:53:38,134 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,171 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,177 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,178 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,182 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,185 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,189 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,191 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,193 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,199 INFO L701 Elim1Store]: detected not equals via solver [2019-02-15 10:53:38,199 INFO L303 Elim1Store]: Index analysis took 109 ms [2019-02-15 10:53:38,200 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 [2019-02-15 10:53:38,201 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-02-15 10:53:39,585 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-02-15 10:53:46,544 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. [2019-02-15 10:53:46,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-02-15 10:54:27,778 WARN L181 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 96 [2019-02-15 10:54:27,802 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 22 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-15 10:54:27,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-02-15 10:54:34,155 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-02-15 10:54:34,174 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-15 10:54:34,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 4] total 19 [2019-02-15 10:54:34,174 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-15 10:54:34,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-02-15 10:54:34,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-02-15 10:54:34,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=208, Unknown=51, NotChecked=0, Total=380 [2019-02-15 10:54:34,175 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-02-15 10:56:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-15 10:56:08,472 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-02-15 10:56:08,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-02-15 10:56:08,479 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-02-15 10:56:08,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-15 10:56:08,479 INFO L225 Difference]: With dead ends: 13 [2019-02-15 10:56:08,479 INFO L226 Difference]: Without dead ends: 0 [2019-02-15 10:56:08,480 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 11 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 138.9s TimeCoverageRelationStatistics Valid=121, Invalid=208, Unknown=51, NotChecked=0, Total=380 [2019-02-15 10:56:08,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-02-15 10:56:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-02-15 10:56:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-02-15 10:56:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-02-15 10:56:08,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-02-15 10:56:08,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-15 10:56:08,481 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-02-15 10:56:08,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-02-15 10:56:08,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-15 10:56:08,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-15 10:56:08,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-02-15 10:56:27,316 WARN L181 SmtUtils]: Spent 18.80 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-02-15 10:56:27,319 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-02-15 10:56:27,319 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-02-15 10:56:27,319 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-02-15 10:56:27,319 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-02-15 10:56:27,319 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-02-15 10:56:27,319 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)))))) [2019-02-15 10:56:27,331 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:56:27 BoogieIcfgContainer [2019-02-15 10:56:27,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-02-15 10:56:27,331 INFO L168 Benchmark]: Toolchain (without parser) took 582621.25 ms. Allocated memory was 137.9 MB in the beginning and 327.2 MB in the end (delta: 189.3 MB). Free memory was 105.1 MB in the beginning and 254.5 MB in the end (delta: -149.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2019-02-15 10:56:27,332 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 137.9 MB. Free memory is still 105.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-15 10:56:27,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.58 ms. Allocated memory is still 137.9 MB. Free memory was 104.6 MB in the beginning and 103.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-02-15 10:56:27,333 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 137.9 MB. Free memory was 103.0 MB in the beginning and 102.1 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. [2019-02-15 10:56:27,333 INFO L168 Benchmark]: RCFGBuilder took 304.91 ms. Allocated memory is still 137.9 MB. Free memory was 101.6 MB in the beginning and 93.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-02-15 10:56:27,334 INFO L168 Benchmark]: TraceAbstraction took 582249.84 ms. Allocated memory was 137.9 MB in the beginning and 327.2 MB in the end (delta: 189.3 MB). Free memory was 92.5 MB in the beginning and 254.5 MB in the end (delta: -162.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-02-15 10:56:27,336 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 0.15 ms. Allocated memory is still 137.9 MB. Free memory is still 105.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.58 ms. Allocated memory is still 137.9 MB. Free memory was 104.6 MB in the beginning and 103.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 137.9 MB. Free memory was 103.0 MB in the beginning and 102.1 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 304.91 ms. Allocated memory is still 137.9 MB. Free memory was 101.6 MB in the beginning and 93.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 582249.84 ms. Allocated memory was 137.9 MB in the beginning and 327.2 MB in the end (delta: 189.3 MB). Free memory was 92.5 MB in the beginning and 254.5 MB in the end (delta: -162.0 MB). Peak memory consumption was 27.3 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, 582.1s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 128.2s AutomataDifference, 0.0s DeadEndRemovalTime, 18.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 84 SolverSat, 9 SolverUnsat, 62 SolverUnknown, 0 SolverNotchecked, 127.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 8 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 157.4s 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, 18.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 432.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 71 ConstructedInterpolants, 18 QuantifiedInterpolants, 58064 SizeOfPredicates, 38 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 32/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...