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...
[2018-12-24 14:26:30,631 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-24 14:26:30,632 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-24 14:26:30,633 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-24 14:26:30,634 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-24 14:26:30,635 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-24 14:26:30,636 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-24 14:26:30,638 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-24 14:26:30,640 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-24 14:26:30,642 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-24 14:26:30,643 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-24 14:26:30,644 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-24 14:26:30,647 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-24 14:26:30,647 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-24 14:26:30,648 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-24 14:26:30,648 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-24 14:26:30,650 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-24 14:26:30,650 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-24 14:26:30,651 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-24 14:26:30,653 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-24 14:26:30,653 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-24 14:26:30,654 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-24 14:26:30,654 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-24 14:26:30,654 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-24 14:26:30,655 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-24 14:26:30,656 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[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...