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_array_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e1a14da [2018-12-24 14:26:30,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-24 14:26:30,610 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-24 14:26:30,623 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-24 14:26:30,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-24 14:26:30,624 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-24 14:26:30,625 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-24 14:26:30,627 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-24 14:26:30,629 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-24 14:26:30,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-24 14:26:30,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-24 14:26:30,656 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-24 14:26:30,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-24 14:26:30,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-24 14:26:30,671 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-24 14:26:30,671 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-24 14:26:30,671 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-24 14:26:30,671 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-24 14:26:30,671 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-24 14:26:30,672 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-24 14:26:30,672 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-24 14:26:30,672 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-24 14:26:30,672 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-24 14:26:30,672 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-24 14:26:30,673 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-24 14:26:30,673 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-24 14:26:30,673 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-24 14:26:30,674 INFO L133 SettingsManager]: * Use SBE=true [2018-12-24 14:26:30,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-24 14:26:30,674 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-24 14:26:30,674 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-24 14:26:30,674 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-24 14:26:30,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-24 14:26:30,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-24 14:26:30,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-24 14:26:30,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-24 14:26:30,675 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-24 14:26:30,676 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-24 14:26:30,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-24 14:26:30,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-24 14:26:30,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-24 14:26:30,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-24 14:26:30,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 14:26:30,677 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-24 14:26:30,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-24 14:26:30,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-24 14:26:30,677 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-24 14:26:30,678 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-24 14:26:30,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-24 14:26:30,678 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-24 14:26:30,678 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-24 14:26:30,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-24 14:26:30,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-24 14:26:30,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-24 14:26:30,735 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-24 14:26:30,736 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-24 14:26:30,737 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2018-12-24 14:26:30,737 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2018-12-24 14:26:30,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-24 14:26:30,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-24 14:26:30,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-24 14:26:30,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-24 14:26:30,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-24 14:26:30,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,813 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-24 14:26:30,814 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-24 14:26:30,814 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-24 14:26:30,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-24 14:26:30,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-24 14:26:30,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-24 14:26:30,818 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-24 14:26:30,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... [2018-12-24 14:26:30,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-24 14:26:30,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-24 14:26:30,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-24 14:26:30,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-24 14:26:30,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 14:26:30,924 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-24 14:26:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-24 14:26:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-24 14:26:31,183 INFO L272 CfgBuilder]: Using library mode [2018-12-24 14:26:31,183 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-24 14:26:31,184 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:26:31 BoogieIcfgContainer [2018-12-24 14:26:31,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-24 14:26:31,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-24 14:26:31,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-24 14:26:31,190 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-24 14:26:31,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:26:30" (1/2) ... [2018-12-24 14:26:31,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb9062e and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:26:31, skipping insertion in model container [2018-12-24 14:26:31,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:26:31" (2/2) ... [2018-12-24 14:26:31,194 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2018-12-24 14:26:31,204 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-24 14:26:31,213 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-24 14:26:31,227 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-24 14:26:31,259 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-24 14:26:31,260 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-24 14:26:31,261 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-24 14:26:31,261 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-24 14:26:31,261 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-24 14:26:31,261 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-24 14:26:31,261 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-24 14:26:31,264 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-24 14:26:31,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-24 14:26:31,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-24 14:26:31,294 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:26:31,295 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-24 14:26:31,299 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:26:31,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:26:31,307 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2018-12-24 14:26:31,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:26:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:31,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:26:31,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:31,358 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:26:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:26:31,675 WARN L181 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-12-24 14:26:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:31,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-24 14:26:31,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-24 14:26:31,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-24 14:26:31,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-24 14:26:31,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-24 14:26:31,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-24 14:26:31,735 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-12-24 14:26:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:26:31,808 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-12-24 14:26:31,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-24 14:26:31,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-24 14:26:31,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:26:31,831 INFO L225 Difference]: With dead ends: 15 [2018-12-24 14:26:31,834 INFO L226 Difference]: Without dead ends: 5 [2018-12-24 14:26:31,838 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 [2018-12-24 14:26:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-24 14:26:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-24 14:26:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-24 14:26:31,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-24 14:26:31,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-24 14:26:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:26:31,881 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-24 14:26:31,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-24 14:26:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-24 14:26:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-24 14:26:31,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:26:31,882 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-24 14:26:31,883 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:26:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:26:31,884 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2018-12-24 14:26:31,884 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:26:31,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:31,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:26:31,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:31,885 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:26:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:26:32,102 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2018-12-24 14:26:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:32,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:32,129 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 14:26:32,130 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-24 14:26:32,132 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2018-12-24 14:26:32,190 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-24 14:26:32,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-24 14:26:32,855 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-24 14:26:32,856 INFO L272 AbstractInterpreter]: Visited 4 different actions 9 times. Merged at 3 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-24 14:26:32,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:26:32,867 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-24 14:26:32,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:32,868 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 14:26:32,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:26:32,886 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-24 14:26:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:26:32,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 14:26:33,052 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-24 14:26:33,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 14:26:33,083 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:33,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:33,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:33,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 14:26:33,487 WARN L181 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-12-24 14:26:33,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,502 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,513 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 58 [2018-12-24 14:26:33,734 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,758 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,791 INFO L303 Elim1Store]: Index analysis took 110 ms [2018-12-24 14:26:33,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 70 [2018-12-24 14:26:33,813 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:33,977 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,992 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,996 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:33,998 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,001 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,003 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,007 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 90 [2018-12-24 14:26:34,049 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:34,248 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 14:26:34,257 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,261 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,266 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,282 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 57 [2018-12-24 14:26:34,298 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,304 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2018-12-24 14:26:34,307 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:34,583 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,605 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,619 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,631 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,656 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,696 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:34,696 INFO L303 Elim1Store]: Index analysis took 152 ms [2018-12-24 14:26:34,697 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 86 [2018-12-24 14:26:34,699 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:34,781 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 14:26:34,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-24 14:26:34,877 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2018-12-24 14:26:35,028 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2018-12-24 14:26:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:35,037 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 14:26:35,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:35,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 14:26:35,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2018-12-24 14:26:35,191 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 14:26:35,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-24 14:26:35,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-24 14:26:35,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-24 14:26:35,193 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-12-24 14:26:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:26:39,323 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-24 14:26:39,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-24 14:26:39,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-12-24 14:26:39,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:26:39,324 INFO L225 Difference]: With dead ends: 8 [2018-12-24 14:26:39,324 INFO L226 Difference]: Without dead ends: 6 [2018-12-24 14:26:39,325 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-24 14:26:39,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-24 14:26:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-24 14:26:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-24 14:26:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-12-24 14:26:39,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-12-24 14:26:39,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:26:39,328 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-12-24 14:26:39,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-24 14:26:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-12-24 14:26:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-24 14:26:39,328 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:26:39,328 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-12-24 14:26:39,329 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:26:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:26:39,329 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2018-12-24 14:26:39,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:26:39,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:39,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:26:39,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:39,331 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:26:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:26:39,674 WARN L181 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2018-12-24 14:26:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:39,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:39,700 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 14:26:39,700 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 14:26:39,700 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 14:26:39,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:39,700 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 14:26:39,713 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-24 14:26:39,713 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-24 14:26:39,725 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-24 14:26:39,725 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-24 14:26:39,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 14:26:39,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-24 14:26:39,769 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,771 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 14:26:39,772 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:39,787 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:39,794 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:39,795 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 14:26:39,873 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,888 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,893 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,928 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 53 [2018-12-24 14:26:39,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,949 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,951 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:39,952 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 66 [2018-12-24 14:26:39,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:40,059 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,064 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,066 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 42 [2018-12-24 14:26:40,066 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:40,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 14:26:40,169 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,186 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 54 [2018-12-24 14:26:40,222 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,247 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 70 [2018-12-24 14:26:40,250 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:40,316 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,319 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,320 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 46 [2018-12-24 14:26:40,333 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:40,373 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-24 14:26:40,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-12-24 14:26:40,466 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2018-12-24 14:26:40,974 WARN L181 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-12-24 14:26:40,983 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,984 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:40,987 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 72 [2018-12-24 14:26:41,076 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,100 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,138 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-12-24 14:26:41,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 100 [2018-12-24 14:26:41,143 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,216 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,217 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2018-12-24 14:26:41,231 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,233 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,234 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,238 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 93 [2018-12-24 14:26:41,241 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,283 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,563 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,565 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,566 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,569 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,572 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,575 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,585 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,591 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 122 [2018-12-24 14:26:41,602 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,614 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,621 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 167 [2018-12-24 14:26:41,642 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,701 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:41,706 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,715 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,718 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,719 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,721 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,725 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,727 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 125 [2018-12-24 14:26:41,740 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,743 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,765 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,787 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:41,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 164 [2018-12-24 14:26:41,790 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:42,024 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:42,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2018-12-24 14:26:42,137 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2018-12-24 14:26:42,433 WARN L181 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2018-12-24 14:26:42,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:42,439 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 14:26:42,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-24 14:26:42,568 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 14:26:42,568 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2018-12-24 14:26:42,568 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 14:26:42,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-24 14:26:42,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-24 14:26:42,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-12-24 14:26:42,569 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2018-12-24 14:26:47,815 WARN L181 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-12-24 14:26:51,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:26:51,991 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-12-24 14:26:51,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-24 14:26:51,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2018-12-24 14:26:51,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:26:51,992 INFO L225 Difference]: With dead ends: 10 [2018-12-24 14:26:51,992 INFO L226 Difference]: Without dead ends: 8 [2018-12-24 14:26:51,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-12-24 14:26:51,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-24 14:26:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-24 14:26:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-24 14:26:51,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-24 14:26:51,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-12-24 14:26:51,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:26:51,997 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-24 14:26:51,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-24 14:26:51,997 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-24 14:26:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-24 14:26:51,998 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:26:51,998 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-12-24 14:26:51,998 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:26:51,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:26:51,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2018-12-24 14:26:51,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:26:51,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:52,000 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-24 14:26:52,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:26:52,000 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:26:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:26:52,253 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 11 [2018-12-24 14:26:52,448 WARN L181 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2018-12-24 14:26:52,531 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:26:52,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:52,532 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 14:26:52,532 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 14:26:52,532 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 14:26:52,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:26:52,533 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 14:26:52,550 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-24 14:26:52,550 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-24 14:26:52,689 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-24 14:26:52,689 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-24 14:26:52,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 14:26:52,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-24 14:26:52,698 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 14:26:52,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,717 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 14:26:52,797 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,798 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2018-12-24 14:26:52,805 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,806 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2018-12-24 14:26:52,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,845 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,847 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2018-12-24 14:26:52,853 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,854 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,855 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:52,857 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2018-12-24 14:26:52,858 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,883 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:52,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-24 14:26:52,920 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2018-12-24 14:26:53,197 WARN L181 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-24 14:26:53,200 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,201 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,203 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2018-12-24 14:26:53,253 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,277 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,279 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,280 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,282 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2018-12-24 14:26:53,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:53,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:53,514 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,516 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,555 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,558 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,559 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,559 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 14:26:53,566 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,567 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,568 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 148 [2018-12-24 14:26:53,577 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,578 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,580 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,584 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,588 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:53,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 136 [2018-12-24 14:26:53,591 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:53,683 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:53,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:26:53,746 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2018-12-24 14:26:54,254 WARN L181 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2018-12-24 14:26:54,263 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,264 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,266 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,274 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,275 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 161 [2018-12-24 14:26:54,284 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,285 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,288 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,289 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 159 [2018-12-24 14:26:54,293 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:54,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:54,592 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,596 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,598 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,602 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,605 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,606 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 14:26:54,612 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,615 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,620 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,623 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,626 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,629 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 270 [2018-12-24 14:26:54,659 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,666 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,669 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,673 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,677 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:26:54,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 192 [2018-12-24 14:26:54,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:26:54,826 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:26:54,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:26:54,909 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2018-12-24 14:26:55,492 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-12-24 14:27:00,095 WARN L181 SmtUtils]: Spent 4.59 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2018-12-24 14:27:00,111 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,122 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,125 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,133 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,140 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,143 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,150 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 296 [2018-12-24 14:27:00,175 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,177 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,181 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,186 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,189 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:00,191 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 212 [2018-12-24 14:27:00,192 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:00,302 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:01,971 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:01,982 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:01,989 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,000 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,008 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,032 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,043 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,065 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,075 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,089 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,097 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,125 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,160 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,192 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,239 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,240 INFO L303 Elim1Store]: Index analysis took 309 ms [2018-12-24 14:27:02,242 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 394 [2018-12-24 14:27:02,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,266 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,270 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,273 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,275 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,279 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:02,280 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 319 [2018-12-24 14:27:02,281 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:02,559 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:02,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:27:02,803 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2018-12-24 14:27:11,481 WARN L181 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 67 [2018-12-24 14:27:11,492 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:27:11,492 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 14:27:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-24 14:27:17,198 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 14:27:17,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2018-12-24 14:27:17,198 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 14:27:17,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-24 14:27:17,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-24 14:27:17,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2018-12-24 14:27:17,202 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2018-12-24 14:27:37,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:27:37,567 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2018-12-24 14:27:37,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-24 14:27:37,567 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2018-12-24 14:27:37,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:27:37,568 INFO L225 Difference]: With dead ends: 15 [2018-12-24 14:27:37,568 INFO L226 Difference]: Without dead ends: 12 [2018-12-24 14:27:37,569 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2018-12-24 14:27:37,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-24 14:27:37,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-24 14:27:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-24 14:27:37,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-12-24 14:27:37,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2018-12-24 14:27:37,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:27:37,575 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-12-24 14:27:37,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-24 14:27:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-12-24 14:27:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-24 14:27:37,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:27:37,576 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2018-12-24 14:27:37,576 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:27:37,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:27:37,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2018-12-24 14:27:37,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:27:37,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:27:37,578 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-24 14:27:37,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:27:37,578 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:27:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:27:38,118 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2018-12-24 14:27:38,463 WARN L181 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2018-12-24 14:27:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-24 14:27:38,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:27:38,730 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 14:27:38,731 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-24 14:27:38,731 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-24 14:27:38,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:27:38,731 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-24 14:27:38,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:27:38,741 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-24 14:27:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:27:41,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 14:27:41,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2018-12-24 14:27:41,086 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,088 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-12-24 14:27:41,089 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,110 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2018-12-24 14:27:41,159 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,160 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2018-12-24 14:27:41,166 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,167 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,168 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2018-12-24 14:27:41,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,192 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,196 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,197 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,198 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2018-12-24 14:27:41,204 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,205 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,206 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2018-12-24 14:27:41,208 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,231 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-12-24 14:27:41,263 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2018-12-24 14:27:41,528 WARN L181 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-24 14:27:41,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,539 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,541 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2018-12-24 14:27:41,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,551 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,553 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,555 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,556 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2018-12-24 14:27:41,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,612 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,699 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,712 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,714 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,714 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 14:27:41,719 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,720 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,722 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,725 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,726 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 [2018-12-24 14:27:41,732 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,735 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,737 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,739 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:41,740 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 [2018-12-24 14:27:41,741 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,795 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:41,864 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:27:41,864 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2018-12-24 14:27:42,145 WARN L181 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-12-24 14:27:42,899 WARN L181 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2018-12-24 14:27:42,910 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 14:27:42,915 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,925 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,932 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,936 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,949 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,958 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,974 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:42,974 INFO L683 Elim1Store]: detected equality via solver [2018-12-24 14:27:43,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,026 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,030 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,033 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,033 INFO L303 Elim1Store]: Index analysis took 132 ms [2018-12-24 14:27:43,034 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 [2018-12-24 14:27:43,048 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,049 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,064 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,070 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,071 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 [2018-12-24 14:27:43,072 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:43,225 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:43,533 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,534 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,535 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,540 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,541 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 [2018-12-24 14:27:43,547 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,548 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,551 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,553 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:43,554 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 [2018-12-24 14:27:43,555 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:43,644 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:43,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:27:43,765 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2018-12-24 14:27:46,591 WARN L181 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-12-24 14:27:49,381 WARN L181 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2018-12-24 14:27:49,389 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,390 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,394 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,399 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,400 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,401 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,402 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,403 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,407 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,409 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 [2018-12-24 14:27:49,416 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,422 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,424 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,425 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,426 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,428 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:49,430 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 [2018-12-24 14:27:49,431 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:49,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:50,589 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,635 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,650 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,662 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,680 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,693 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,732 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,766 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,790 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,874 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,888 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,917 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,948 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,994 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:50,995 INFO L303 Elim1Store]: Index analysis took 427 ms [2018-12-24 14:27:50,995 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 [2018-12-24 14:27:51,051 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,132 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,136 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,152 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,155 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:27:51,156 INFO L303 Elim1Store]: Index analysis took 157 ms [2018-12-24 14:27:51,157 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 [2018-12-24 14:27:51,159 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:27:51,540 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:27:52,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:27:52,075 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2018-12-24 14:27:58,690 WARN L181 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 64 [2018-12-24 14:28:05,926 WARN L181 SmtUtils]: Spent 7.23 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2018-12-24 14:28:05,952 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:05,958 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:05,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:05,972 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:05,984 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:05,994 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,002 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,009 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,015 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,021 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,028 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,038 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,044 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,055 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,072 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,072 INFO L303 Elim1Store]: Index analysis took 144 ms [2018-12-24 14:28:06,073 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 [2018-12-24 14:28:06,082 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,085 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,088 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,090 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,094 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,099 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:06,100 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 [2018-12-24 14:28:06,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:28:06,271 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:28:10,928 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:10,948 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:10,967 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:10,999 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,045 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,081 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,120 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,156 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,173 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,416 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,442 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,472 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,501 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,608 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,628 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,683 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,745 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,819 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,846 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,858 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:11,858 INFO L303 Elim1Store]: Index analysis took 1032 ms [2018-12-24 14:28:11,859 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 [2018-12-24 14:28:12,458 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,483 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,497 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,499 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,502 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,507 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,515 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:12,516 INFO L303 Elim1Store]: Index analysis took 651 ms [2018-12-24 14:28:12,517 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 [2018-12-24 14:28:12,519 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:28:13,790 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:28:15,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:28:15,466 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2018-12-24 14:28:32,830 WARN L181 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-12-24 14:28:47,881 WARN L181 SmtUtils]: Spent 15.04 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-12-24 14:28:48,181 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,255 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,298 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,380 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,552 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,636 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,708 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,733 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,764 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,831 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,896 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:48,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,369 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,439 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,557 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,751 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,832 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:49,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,061 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,081 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,174 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,319 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,386 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,519 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,560 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,618 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,793 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,794 INFO L303 Elim1Store]: Index analysis took 2911 ms [2018-12-24 14:28:50,795 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 [2018-12-24 14:28:50,888 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:50,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,026 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,029 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,032 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,035 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,041 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,043 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:28:51,044 INFO L303 Elim1Store]: Index analysis took 245 ms [2018-12-24 14:28:51,046 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 [2018-12-24 14:28:51,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:28:54,078 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:29:06,966 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:06,984 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:06,989 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:06,994 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:06,999 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,005 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,011 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,032 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,035 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,037 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,042 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,049 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,050 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,051 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,053 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,054 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,056 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,058 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,072 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,072 INFO L303 Elim1Store]: Index analysis took 126 ms [2018-12-24 14:29:07,073 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 [2018-12-24 14:29:07,089 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,096 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,099 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,103 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,106 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,109 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,111 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:07,113 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 [2018-12-24 14:29:07,115 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:29:07,506 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:29:10,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:29:10,217 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2018-12-24 14:29:34,392 WARN L181 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 81 [2018-12-24 14:29:57,853 WARN L181 SmtUtils]: Spent 23.46 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2018-12-24 14:29:57,934 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:57,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:58,071 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:58,262 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:58,317 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:59,207 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:59,218 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:59,286 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:59,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:29:59,659 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,027 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,130 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,223 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,249 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,402 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,438 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:00,504 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,323 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,429 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,469 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,523 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,648 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,841 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,861 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:01,992 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,090 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,145 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,241 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,323 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,457 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,459 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,697 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,735 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,855 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,995 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:02,996 INFO L303 Elim1Store]: Index analysis took 5141 ms [2018-12-24 14:30:02,998 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 [2018-12-24 14:30:03,074 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,104 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,110 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,112 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,115 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,118 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,149 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:03,150 INFO L303 Elim1Store]: Index analysis took 145 ms [2018-12-24 14:30:03,151 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 [2018-12-24 14:30:03,153 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:30:08,214 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:30:47,245 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,247 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,248 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,251 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,274 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,301 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,337 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,339 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,355 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,362 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,408 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,415 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,435 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,467 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,486 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,487 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,493 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,494 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,502 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,512 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,516 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,518 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,519 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,543 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,548 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,554 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,556 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,556 INFO L303 Elim1Store]: Index analysis took 356 ms [2018-12-24 14:30:47,558 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 [2018-12-24 14:30:47,584 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,587 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,589 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,594 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,596 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,599 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,602 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,605 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,608 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:30:47,611 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 [2018-12-24 14:30:47,613 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:30:48,496 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:30:54,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:30:54,477 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2018-12-24 14:31:29,874 WARN L181 SmtUtils]: Spent 4.05 s on a formula simplification that was a NOOP. DAG size: 89 [2018-12-24 14:32:05,555 WARN L181 SmtUtils]: Spent 35.67 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2018-12-24 14:32:05,622 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:05,711 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:05,986 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:06,287 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:06,444 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:06,665 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:06,749 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:06,938 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:07,239 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:07,496 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:08,518 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:08,603 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:08,815 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:08,911 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:09,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:09,561 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:09,694 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:09,767 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:09,935 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,162 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,417 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,598 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,794 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,854 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,978 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:10,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:11,034 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:11,248 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:11,666 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:11,808 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,102 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,216 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,275 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,311 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,637 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,743 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:12,850 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:13,083 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:13,085 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:15,716 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (let ((.cse0 (mod (+ (mod (+ v_subst_4 1) 256) 1) 256))) (= (mod (+ .cse0 1) 256) .cse0)) [2018-12-24 14:32:15,718 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:15,809 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:15,980 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,084 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,258 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,366 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,366 INFO L303 Elim1Store]: Index analysis took 10809 ms [2018-12-24 14:32:16,368 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 [2018-12-24 14:32:16,867 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,875 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,886 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,892 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,898 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,901 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,905 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,909 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,911 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:32:16,912 INFO L303 Elim1Store]: Index analysis took 538 ms [2018-12-24 14:32:16,914 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 [2018-12-24 14:32:16,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-24 14:32:32,088 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:33:16,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,680 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,708 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,726 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,771 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,772 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,792 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,813 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,851 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,862 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,863 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,877 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,878 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,881 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,882 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,885 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,890 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,905 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,959 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:16,999 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,001 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,061 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,062 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,063 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,080 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,098 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,832 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,833 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,840 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,853 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,855 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,856 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,892 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,909 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,913 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,914 INFO L303 Elim1Store]: Index analysis took 1303 ms [2018-12-24 14:33:17,915 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 [2018-12-24 14:33:17,948 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,950 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,953 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,955 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,957 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,961 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,964 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,967 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,975 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-24 14:33:17,981 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 [2018-12-24 14:33:17,983 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-24 14:33:19,319 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 14:33:26,983 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-12-24 14:33:26,984 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2018-12-24 14:33:29,012 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_subst_4 Int)) (let ((.cse6 (mod (+ v_subst_4 1) 256))) (let ((.cse8 (mod (+ .cse6 1) 256))) (let ((.cse4 (mod (+ .cse8 1) 256))) (let ((.cse3 (mod (+ .cse4 1) 256))) (let ((.cse9 (mod (+ .cse3 1) 256))) (let ((.cse10 (mod (+ .cse9 1) 256))) (let ((.cse0 (mod (+ .cse10 1) 256)) (.cse1 (select c_main_a .cse10)) (.cse2 (select c_main_a .cse9)) (.cse5 (select c_main_a .cse8)) (.cse7 (select c_main_a (+ v_subst_4 (- 1))))) (and (= c_main_y (mod (+ .cse0 1) 256)) (= c_main_x .cse0) (= (select c_main_a c_main_y) .cse1) (= 1000 .cse2) (= (select c_main_a c_main_x) .cse1) (= (select c_main_a .cse3) .cse2) (= .cse1 .cse2) (= (select c_main_a .cse4) .cse5) (= (select c_main_a .cse6) .cse5) (= 1000 .cse5) (= 0 (select c_main_a v_subst_4)) (= 1000 .cse7) (= (select c_main_a (mod v_subst_4 256)) .cse7)))))))))) (exists ((v_subst_5 Int)) (let ((.cse19 (mod (+ v_subst_5 1) 256))) (let ((.cse18 (mod (+ .cse19 1) 256))) (let ((.cse20 (mod (+ .cse18 1) 256))) (let ((.cse23 (mod (+ .cse20 1) 256))) (let ((.cse22 (mod (+ .cse23 1) 256))) (let ((.cse21 (mod (+ .cse22 1) 256))) (let ((.cse11 (select c_main_a .cse23)) (.cse14 (mod (+ .cse21 1) 256)) (.cse16 (select c_main_a .cse22)) (.cse12 (select c_main_a .cse21)) (.cse15 (select c_main_a v_subst_5)) (.cse13 (select c_main_a .cse20)) (.cse17 (select c_main_a .cse19))) (and (= 1000 .cse11) (= (select c_main_a c_main_y) .cse12) (= (select c_main_a c_main_x) .cse12) (= .cse13 .cse11) (= .cse14 c_main_x) (= .cse15 (select c_main_a (+ v_subst_5 (- 1)))) (= .cse16 1000) (= c_main_y (mod (+ .cse14 1) 256)) (= .cse16 .cse12) (= .cse15 .cse17) (= .cse13 (select c_main_a .cse18)) (= v_subst_5 (mod v_subst_5 256)) (= .cse17 1000))))))))))) is different from false [2018-12-24 14:33:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 14 times theorem prover too weak. 0 trivial. 8 not checked. [2018-12-24 14:33:29,023 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 14:33:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-24 14:33:37,932 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 14:33:37,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 4] total 19 [2018-12-24 14:33:37,932 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 14:33:37,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-24 14:33:37,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-24 14:33:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=198, Unknown=35, NotChecked=34, Total=380 [2018-12-24 14:33:37,933 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2018-12-24 14:35:26,109 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select c_main_a c_main_y))) (and (= (select c_main_a c_main_x) .cse0) (or (exists ((v_subst_4 Int)) (let ((.cse7 (mod (+ v_subst_4 1) 256))) (let ((.cse9 (mod (+ .cse7 1) 256))) (let ((.cse5 (mod (+ .cse9 1) 256))) (let ((.cse4 (mod (+ .cse5 1) 256))) (let ((.cse10 (mod (+ .cse4 1) 256))) (let ((.cse11 (mod (+ .cse10 1) 256))) (let ((.cse1 (mod (+ .cse11 1) 256)) (.cse2 (select c_main_a .cse11)) (.cse3 (select c_main_a .cse10)) (.cse6 (select c_main_a .cse9)) (.cse8 (select c_main_a (+ v_subst_4 (- 1))))) (and (= c_main_y (mod (+ .cse1 1) 256)) (= c_main_x .cse1) (= (select c_main_a c_main_y) .cse2) (= 1000 .cse3) (= (select c_main_a c_main_x) .cse2) (= (select c_main_a .cse4) .cse3) (= .cse2 .cse3) (= (select c_main_a .cse5) .cse6) (= (select c_main_a .cse7) .cse6) (= 1000 .cse6) (= 0 (select c_main_a v_subst_4)) (= 1000 .cse8) (= (select c_main_a (mod v_subst_4 256)) .cse8)))))))))) (exists ((v_subst_5 Int)) (let ((.cse20 (mod (+ v_subst_5 1) 256))) (let ((.cse19 (mod (+ .cse20 1) 256))) (let ((.cse21 (mod (+ .cse19 1) 256))) (let ((.cse24 (mod (+ .cse21 1) 256))) (let ((.cse23 (mod (+ .cse24 1) 256))) (let ((.cse22 (mod (+ .cse23 1) 256))) (let ((.cse12 (select c_main_a .cse24)) (.cse15 (mod (+ .cse22 1) 256)) (.cse17 (select c_main_a .cse23)) (.cse13 (select c_main_a .cse22)) (.cse16 (select c_main_a v_subst_5)) (.cse14 (select c_main_a .cse21)) (.cse18 (select c_main_a .cse20))) (and (= 1000 .cse12) (= (select c_main_a c_main_y) .cse13) (= (select c_main_a c_main_x) .cse13) (= .cse14 .cse12) (= .cse15 c_main_x) (= .cse16 (select c_main_a (+ v_subst_5 (- 1)))) (= .cse17 1000) (= c_main_y (mod (+ .cse15 1) 256)) (= .cse17 .cse13) (= .cse16 .cse18) (= .cse14 (select c_main_a .cse19)) (= v_subst_5 (mod v_subst_5 256)) (= .cse18 1000))))))))))) (not (= 0 .cse0)))) is different from false [2018-12-24 14:35:28,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:35:28,115 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-12-24 14:35:28,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-24 14:35:28,128 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2018-12-24 14:35:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:35:28,128 INFO L225 Difference]: With dead ends: 13 [2018-12-24 14:35:28,128 INFO L226 Difference]: Without dead ends: 0 [2018-12-24 14:35:28,129 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 11 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 100.4s TimeCoverageRelationStatistics Valid=115, Invalid=199, Unknown=36, NotChecked=70, Total=420 [2018-12-24 14:35:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-24 14:35:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-24 14:35:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-24 14:35:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-24 14:35:28,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-12-24 14:35:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:35:28,130 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-24 14:35:28,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-24 14:35:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-24 14:35:28,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-24 14:35:28,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-24 14:35:32,186 WARN L181 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 354 DAG size of output: 35 [2018-12-24 14:35:32,189 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2018-12-24 14:35:32,189 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-24 14:35:32,189 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2018-12-24 14:35:32,189 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2018-12-24 14:35:32,189 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2018-12-24 14:35:32,190 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)))))) [2018-12-24 14:35:32,201 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 02:35:32 BoogieIcfgContainer [2018-12-24 14:35:32,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-24 14:35:32,201 INFO L168 Benchmark]: Toolchain (without parser) took 541428.70 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.8 MB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -452.3 MB). Peak memory consumption was 373.4 MB. Max. memory is 7.1 GB. [2018-12-24 14:35:32,202 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 14:35:32,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 14:35:32,203 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 14:35:32,203 INFO L168 Benchmark]: RCFGBuilder took 333.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-24 14:35:32,203 INFO L168 Benchmark]: TraceAbstraction took 541015.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.8 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -473.5 MB). Peak memory consumption was 352.3 MB. Max. memory is 7.1 GB. [2018-12-24 14:35:32,206 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 333.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 541015.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.8 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -473.5 MB). Peak memory consumption was 352.3 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, 540.9s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 144.2s AutomataDifference, 0.0s DeadEndRemovalTime, 4.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 90 SolverSat, 9 SolverUnsat, 64 SolverUnknown, 0 SolverNotchecked, 140.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 8 SyntacticMatches, 15 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 118.0s 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, 0.7s 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, 669 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 2799 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 388.7s 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...