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 0.1.24-0ed9222-m [2019-01-11 14:50:22,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 14:50:22,801 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 14:50:22,818 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 14:50:22,818 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 14:50:22,819 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 14:50:22,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 14:50:22,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 14:50:22,824 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 14:50:22,825 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 14:50:22,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-11 14:50:22,855 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 [2019-01-11 14:50:22,868 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 14:50:22,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 14:50:22,870 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-11 14:50:22,870 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-11 14:50:22,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-11 14:50:22,870 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-11 14:50:22,870 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-11 14:50:22,871 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-11 14:50:22,871 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-11 14:50:22,871 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-11 14:50:22,871 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-11 14:50:22,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-11 14:50:22,872 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-11 14:50:22,872 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 14:50:22,872 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 14:50:22,874 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 14:50:22,875 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 14:50:22,875 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 14:50:22,875 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-11 14:50:22,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 14:50:22,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 14:50:22,877 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 14:50:22,877 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 14:50:22,877 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 14:50:22,877 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 14:50:22,877 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 14:50:22,878 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 14:50:22,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 14:50:22,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 14:50:22,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 14:50:22,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in -t:2000 [2019-01-11 14:50:22,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 14:50:22,879 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 14:50:22,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 14:50:22,880 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-11 14:50:22,880 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 14:50:22,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in [2019-01-11 14:50:22,881 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-11 14:50:22,881 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-11 14:50:22,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 14:50:22,942 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 14:50:22,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 14:50:22,950 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-11 14:50:22,951 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-11 14:50:22,951 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl [2019-01-11 14:50:22,952 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HierarchicalTraceAbstraction/SkatingStrawberry.bpl' [2019-01-11 14:50:22,996 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 14:50:22,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-11 14:50:22,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 14:50:22,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 14:50:22,999 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 14:50:23,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,037 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-11 14:50:23,037 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-11 14:50:23,037 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-11 14:50:23,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 14:50:23,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 14:50:23,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 14:50:23,041 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 14:50:23,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/1) ... [2019-01-11 14:50:23,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 14:50:23,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 14:50:23,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 14:50:23,070 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 14:50:23,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (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:8192 -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:8192 -smt2 -in -t:2000 [2019-01-11 14:50:23,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-11 14:50:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-11 14:50:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-11 14:50:23,315 INFO L278 CfgBuilder]: Using library mode [2019-01-11 14:50:23,316 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-11 14:50:23,317 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:50:23 BoogieIcfgContainer [2019-01-11 14:50:23,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 14:50:23,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-11 14:50:23,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-11 14:50:23,321 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-11 14:50:23,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.01 02:50:22" (1/2) ... [2019-01-11 14:50:23,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb33f23 and model type SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:50:23, skipping insertion in model container [2019-01-11 14:50:23,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:50:23" (2/2) ... [2019-01-11 14:50:23,325 INFO L112 eAbstractionObserver]: Analyzing ICFG SkatingStrawberry.bpl [2019-01-11 14:50:23,334 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-11 14:50:23,342 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-11 14:50:23,359 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-11 14:50:23,392 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-11 14:50:23,392 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-11 14:50:23,393 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-11 14:50:23,393 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-11 14:50:23,393 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-11 14:50:23,393 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-11 14:50:23,393 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-11 14:50:23,394 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-11 14:50:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-11 14:50:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-11 14:50:23,415 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:50:23,416 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-11 14:50:23,419 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:50:23,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:50:23,425 INFO L82 PathProgramCache]: Analyzing trace with hash 30048, now seen corresponding path program 1 times [2019-01-11 14:50:23,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:50:23,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:23,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:50:23,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:23,483 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:50:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:50:23,796 WARN L181 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2019-01-11 14:50:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:23,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 14:50:23,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-11 14:50:23,838 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-11 14:50:23,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-11 14:50:23,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-11 14:50:23,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-11 14:50:23,855 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-01-11 14:50:23,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:50:23,920 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-11 14:50:23,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-11 14:50:23,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-11 14:50:23,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:50:23,934 INFO L225 Difference]: With dead ends: 15 [2019-01-11 14:50:23,935 INFO L226 Difference]: Without dead ends: 5 [2019-01-11 14:50:23,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-11 14:50:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-11 14:50:23,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-11 14:50:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-11 14:50:23,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-11 14:50:23,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-11 14:50:23,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:50:23,974 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-11 14:50:23,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-11 14:50:23,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-11 14:50:23,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-11 14:50:23,975 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:50:23,975 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-11 14:50:23,976 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:50:23,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:50:23,976 INFO L82 PathProgramCache]: Analyzing trace with hash 927622, now seen corresponding path program 1 times [2019-01-11 14:50:23,977 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:50:23,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:23,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:50:23,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:23,978 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:50:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:50:24,254 WARN L181 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-01-11 14:50:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:24,267 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:24,267 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-11 14:50:24,268 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-11 14:50:24,271 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [9] [2019-01-11 14:50:24,338 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-11 14:50:24,352 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-11 14:50:25,057 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-11 14:50:25,059 INFO L272 AbstractInterpreter]: Visited 4 different actions 9 times. Merged at 3 different actions 4 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-11 14:50:25,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:50:25,069 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-11 14:50:25,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:25,069 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-11 14:50:25,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:50:25,085 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-11 14:50:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:50:25,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 14:50:25,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-11 14:50:25,240 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,242 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-11 14:50:25,246 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:25,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:25,328 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:25,328 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-11 14:50:25,609 WARN L181 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2019-01-11 14:50:25,632 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,649 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,654 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 58 [2019-01-11 14:50:25,812 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,822 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:25,837 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 70 [2019-01-11 14:50:25,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:26,071 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,080 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,107 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,109 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,112 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,114 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,118 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 90 [2019-01-11 14:50:26,143 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:26,236 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-11 14:50:26,246 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,249 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,253 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,271 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 57 [2019-01-11 14:50:26,301 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,303 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 66 [2019-01-11 14:50:26,305 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:26,641 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,667 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,693 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,718 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,756 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,758 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:26,759 INFO L303 Elim1Store]: Index analysis took 152 ms [2019-01-11 14:50:26,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 86 [2019-01-11 14:50:26,761 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:26,818 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-11 14:50:26,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2019-01-11 14:50:26,914 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:42, output treesize:145 [2019-01-11 14:50:27,065 WARN L181 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2019-01-11 14:50:27,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:27,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 14:50:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:27,190 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-11 14:50:27,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2019-01-11 14:50:27,191 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-11 14:50:27,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-11 14:50:27,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-11 14:50:27,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-01-11 14:50:27,193 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2019-01-11 14:50:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:50:31,323 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-01-11 14:50:31,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-11 14:50:31,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-01-11 14:50:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:50:31,325 INFO L225 Difference]: With dead ends: 8 [2019-01-11 14:50:31,325 INFO L226 Difference]: Without dead ends: 6 [2019-01-11 14:50:31,327 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 [2019-01-11 14:50:31,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-01-11 14:50:31,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-01-11 14:50:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-11 14:50:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-01-11 14:50:31,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-01-11 14:50:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:50:31,330 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-01-11 14:50:31,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-11 14:50:31,330 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-01-11 14:50:31,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-11 14:50:31,331 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:50:31,331 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-01-11 14:50:31,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:50:31,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:50:31,331 INFO L82 PathProgramCache]: Analyzing trace with hash 28752416, now seen corresponding path program 2 times [2019-01-11 14:50:31,332 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:50:31,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:31,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:50:31,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:31,333 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:50:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:50:31,675 WARN L181 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2019-01-11 14:50:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:31,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:31,697 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-11 14:50:31,697 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-11 14:50:31,697 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-11 14:50:31,697 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:31,698 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-11 14:50:31,711 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-11 14:50:31,712 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-01-11 14:50:31,726 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-11 14:50:31,727 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-11 14:50:31,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 14:50:31,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-11 14:50:31,746 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,748 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-11 14:50:31,751 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:31,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:31,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:31,775 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-11 14:50:31,860 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,874 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,878 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 53 [2019-01-11 14:50:31,932 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,933 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,935 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:31,936 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 66 [2019-01-11 14:50:31,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:32,025 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,027 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,029 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 42 [2019-01-11 14:50:32,032 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:32,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-11 14:50:32,125 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,127 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,132 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 30 treesize of output 54 [2019-01-11 14:50:32,221 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,268 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,290 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,441 INFO L303 Elim1Store]: Index analysis took 271 ms [2019-01-11 14:50:32,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 70 [2019-01-11 14:50:32,457 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:32,580 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,583 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,585 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 46 [2019-01-11 14:50:32,596 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:32,634 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-01-11 14:50:32,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2019-01-11 14:50:32,714 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:45, output treesize:157 [2019-01-11 14:50:32,941 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,942 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,944 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:32,957 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 72 [2019-01-11 14:50:33,034 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,055 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,064 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,073 INFO L303 Elim1Store]: Index analysis took 113 ms [2019-01-11 14:50:33,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 100 [2019-01-11 14:50:33,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,139 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,143 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,145 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,147 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 71 [2019-01-11 14:50:33,152 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,153 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,154 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,158 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,159 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 93 [2019-01-11 14:50:33,161 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,196 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,412 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,415 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,417 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,418 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,421 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,423 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,430 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 122 [2019-01-11 14:50:33,451 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,465 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,472 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,473 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 167 [2019-01-11 14:50:33,494 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,547 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,552 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,556 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,564 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,567 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,570 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,572 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,573 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 125 [2019-01-11 14:50:33,586 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,588 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,608 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,637 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:33,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 164 [2019-01-11 14:50:33,640 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,865 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:33,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 3 xjuncts. [2019-01-11 14:50:33,975 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:125, output treesize:178 [2019-01-11 14:50:34,153 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-01-11 14:50:34,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:34,159 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 14:50:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-11 14:50:34,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-11 14:50:34,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 9 [2019-01-11 14:50:34,276 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-11 14:50:34,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-11 14:50:34,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-11 14:50:34,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-01-11 14:50:34,278 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2019-01-11 14:50:39,555 WARN L181 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-01-11 14:50:43,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:50:43,722 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-01-11 14:50:43,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-11 14:50:43,723 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-01-11 14:50:43,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:50:43,724 INFO L225 Difference]: With dead ends: 10 [2019-01-11 14:50:43,724 INFO L226 Difference]: Without dead ends: 8 [2019-01-11 14:50:43,725 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2019-01-11 14:50:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-11 14:50:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-11 14:50:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-11 14:50:43,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-11 14:50:43,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-11 14:50:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:50:43,728 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-11 14:50:43,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-11 14:50:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-11 14:50:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-11 14:50:43,729 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:50:43,729 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-01-11 14:50:43,729 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:50:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:50:43,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144288, now seen corresponding path program 3 times [2019-01-11 14:50:43,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:50:43,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:43,730 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-11 14:50:43,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:50:43,730 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:50:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:50:44,394 WARN L181 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-01-11 14:50:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:44,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:44,460 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-11 14:50:44,460 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-11 14:50:44,460 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-11 14:50:44,460 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:50:44,461 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-11 14:50:44,479 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-01-11 14:50:44,480 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-01-11 14:50:44,596 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-01-11 14:50:44,596 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-11 14:50:44,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 14:50:44,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-11 14:50:44,608 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,610 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-11 14:50:44,611 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,622 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,630 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,631 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-11 14:50:44,727 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,728 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2019-01-11 14:50:44,733 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,734 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2019-01-11 14:50:44,735 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,781 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,783 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,784 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2019-01-11 14:50:44,790 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,791 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,792 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:44,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2019-01-11 14:50:44,794 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,818 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:44,852 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-01-11 14:50:44,852 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-11 14:50:45,109 WARN L181 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-11 14:50:45,116 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,117 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,118 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2019-01-11 14:50:45,174 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,183 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,185 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,186 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,188 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2019-01-11 14:50:45,189 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:45,275 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:45,421 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,422 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,442 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,460 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,462 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,465 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,466 INFO L683 Elim1Store]: detected equality via solver [2019-01-11 14:50:45,469 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,471 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,472 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 148 [2019-01-11 14:50:45,527 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,529 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,531 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,533 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,536 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:45,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 136 [2019-01-11 14:50:45,539 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:45,612 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:45,659 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:50:45,660 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-11 14:50:46,433 WARN L181 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-01-11 14:50:46,468 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,478 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,479 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,480 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,481 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,483 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,485 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 161 [2019-01-11 14:50:46,494 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,495 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,497 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,499 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,501 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 159 [2019-01-11 14:50:46,503 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:46,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:46,928 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,932 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,934 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,939 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,943 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,943 INFO L683 Elim1Store]: detected equality via solver [2019-01-11 14:50:46,951 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,953 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,960 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,967 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,976 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,980 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 270 [2019-01-11 14:50:46,990 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,995 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:46,997 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:47,008 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:47,010 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:47,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 192 [2019-01-11 14:50:47,013 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:47,269 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:47,375 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:50:47,375 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:225, output treesize:177 [2019-01-11 14:50:50,540 WARN L181 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-01-11 14:50:50,551 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,553 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,559 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,565 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,570 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,576 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,581 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,587 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,590 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,595 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 296 [2019-01-11 14:50:50,604 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,605 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,605 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,607 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,609 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,611 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:50,613 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 212 [2019-01-11 14:50:50,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:50,732 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:51,785 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,814 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,828 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,839 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,876 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,892 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,902 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,910 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,914 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,922 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,944 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,986 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:51,995 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,004 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,031 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,116 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,116 INFO L303 Elim1Store]: Index analysis took 377 ms [2019-01-11 14:50:52,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 394 [2019-01-11 14:50:52,143 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,147 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,151 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,153 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,158 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,161 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:50:52,162 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 319 [2019-01-11 14:50:52,163 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:50:52,601 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:50:53,179 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:50:53,180 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:317, output treesize:249 [2019-01-11 14:50:59,136 WARN L181 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-01-11 14:50:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:50:59,162 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 14:51:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-11 14:51:00,534 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-11 14:51:00,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 14 [2019-01-11 14:51:00,535 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-11 14:51:00,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-11 14:51:00,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-11 14:51:00,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2019-01-11 14:51:00,537 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 12 states. [2019-01-11 14:51:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:51:22,033 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-01-11 14:51:22,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-11 14:51:22,034 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 7 [2019-01-11 14:51:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:51:22,034 INFO L225 Difference]: With dead ends: 15 [2019-01-11 14:51:22,035 INFO L226 Difference]: Without dead ends: 12 [2019-01-11 14:51:22,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=73, Invalid=135, Unknown=2, NotChecked=0, Total=210 [2019-01-11 14:51:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-11 14:51:22,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-11 14:51:22,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-11 14:51:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-11 14:51:22,041 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2019-01-11 14:51:22,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:51:22,042 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-11 14:51:22,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-11 14:51:22,042 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-11 14:51:22,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-11 14:51:22,042 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:51:22,042 INFO L402 BasicCegarLoop]: trace histogram [8, 1, 1, 1] [2019-01-11 14:51:22,043 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:51:22,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:51:22,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166432, now seen corresponding path program 4 times [2019-01-11 14:51:22,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:51:22,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:22,044 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-11 14:51:22,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:22,044 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:51:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:51:22,512 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 15 [2019-01-11 14:51:22,654 WARN L181 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2019-01-11 14:51:22,907 WARN L181 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 10 [2019-01-11 14:51:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-01-11 14:51:23,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:51:23,051 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-11 14:51:23,051 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-01-11 14:51:23,052 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-01-11 14:51:23,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:51:23,052 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-11 14:51:23,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:51:23,062 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-11 14:51:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:51:25,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-11 14:51:25,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 12 [2019-01-11 14:51:25,204 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,206 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2019-01-11 14:51:25,207 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,218 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:16 [2019-01-11 14:51:25,275 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,276 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,277 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 50 [2019-01-11 14:51:25,281 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,283 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 50 [2019-01-11 14:51:25,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,308 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,310 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,311 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 56 [2019-01-11 14:51:25,321 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,322 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,323 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 69 [2019-01-11 14:51:25,325 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,347 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,381 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2019-01-11 14:51:25,381 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:47, output treesize:80 [2019-01-11 14:51:25,683 WARN L181 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-01-11 14:51:25,686 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,687 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,689 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 89 [2019-01-11 14:51:25,695 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,696 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,698 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,699 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 69 [2019-01-11 14:51:25,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,872 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,875 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,876 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,877 INFO L683 Elim1Store]: detected equality via solver [2019-01-11 14:51:25,880 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,881 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,884 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,886 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 130 [2019-01-11 14:51:25,901 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,912 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,914 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:25,915 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 126 [2019-01-11 14:51:25,916 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:25,965 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:26,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:51:26,026 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:129 [2019-01-11 14:51:26,963 WARN L181 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-01-11 14:51:26,990 INFO L683 Elim1Store]: detected equality via solver [2019-01-11 14:51:26,994 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:26,999 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,004 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,013 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,020 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,024 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,031 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,043 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,043 INFO L683 Elim1Store]: detected equality via solver [2019-01-11 14:51:27,045 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,054 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,061 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,067 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,067 INFO L303 Elim1Store]: Index analysis took 102 ms [2019-01-11 14:51:27,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 259 [2019-01-11 14:51:27,088 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,089 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,091 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,094 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,096 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 178 [2019-01-11 14:51:27,099 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:27,252 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:27,423 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,426 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,428 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,432 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,433 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,435 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 171 [2019-01-11 14:51:27,478 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,491 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,492 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,494 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:27,496 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 127 [2019-01-11 14:51:27,497 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:27,567 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:27,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:51:27,712 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:229, output treesize:173 [2019-01-11 14:51:28,316 WARN L181 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-01-11 14:51:31,308 WARN L181 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-01-11 14:51:31,313 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,315 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,317 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,320 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,322 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,324 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,328 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,329 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,330 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,331 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 298 [2019-01-11 14:51:31,340 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,343 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,345 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,346 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,349 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:31,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 214 [2019-01-11 14:51:31,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:31,462 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:33,829 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,902 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,925 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,930 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,944 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,951 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,965 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:33,990 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,017 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,043 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,072 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,088 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,871 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,935 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,951 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,966 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,967 INFO L303 Elim1Store]: Index analysis took 1178 ms [2019-01-11 14:51:34,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 378 [2019-01-11 14:51:34,976 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,988 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,992 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,994 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,995 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:34,997 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 23 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 287 [2019-01-11 14:51:34,998 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:35,782 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:36,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:51:36,612 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:235 [2019-01-11 14:51:42,020 WARN L181 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-01-11 14:51:48,588 WARN L181 SmtUtils]: Spent 6.56 s on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-01-11 14:51:48,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,614 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,629 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,648 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,657 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,664 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,676 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,683 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,688 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,695 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,703 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,711 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,717 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,724 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,732 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,732 INFO L303 Elim1Store]: Index analysis took 143 ms [2019-01-11 14:51:48,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 491 [2019-01-11 14:51:48,749 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,751 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,756 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,759 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,761 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,762 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:48,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 367 [2019-01-11 14:51:48,766 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:48,971 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:54,720 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:54,734 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,221 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,249 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,278 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,301 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,372 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,670 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,773 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,805 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,838 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,876 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,893 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,970 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:55,987 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,023 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,087 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,164 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,178 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,214 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,233 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,306 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,307 INFO L303 Elim1Store]: Index analysis took 1666 ms [2019-01-11 14:51:56,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 585 [2019-01-11 14:51:56,361 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,384 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,408 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,432 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,455 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,479 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,509 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:51:56,510 INFO L303 Elim1Store]: Index analysis took 197 ms [2019-01-11 14:51:56,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 30 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 450 [2019-01-11 14:51:56,512 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:51:58,402 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:51:59,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:51:59,924 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:423, output treesize:319 [2019-01-11 14:52:18,468 WARN L181 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 72 [2019-01-11 14:52:40,645 WARN L181 SmtUtils]: Spent 22.17 s on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-01-11 14:52:41,019 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:41,934 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,091 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,164 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,196 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,267 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,378 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,624 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:42,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:43,557 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:43,643 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:43,728 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:43,814 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:43,954 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,011 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,126 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,288 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,395 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,497 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,595 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,653 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,794 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,832 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,921 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:44,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,016 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,203 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,285 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,340 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,341 INFO L303 Elim1Store]: Index analysis took 4694 ms [2019-01-11 14:52:45,342 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 876 [2019-01-11 14:52:45,433 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,435 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,440 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,461 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,471 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,477 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,479 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,489 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:52:45,489 INFO L303 Elim1Store]: Index analysis took 143 ms [2019-01-11 14:52:45,491 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 38 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 713 [2019-01-11 14:52:45,492 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:52:48,334 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:53:04,864 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,868 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,870 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,872 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,889 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,897 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,904 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,909 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,911 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,917 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,921 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,929 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,947 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,949 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,951 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,953 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,958 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,964 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,983 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,985 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,992 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:04,993 INFO L303 Elim1Store]: Index analysis took 136 ms [2019-01-11 14:53:04,994 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 746 [2019-01-11 14:53:05,033 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,038 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,040 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,042 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,044 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,047 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,050 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,052 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:05,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 29 disjoint index pairs (out of 21 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 574 [2019-01-11 14:53:05,055 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:53:05,397 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:53:07,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:53:07,750 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:547, output treesize:445 [2019-01-11 14:53:31,432 WARN L181 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 81 [2019-01-11 14:53:54,432 WARN L181 SmtUtils]: Spent 22.99 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-01-11 14:53:54,548 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:54,936 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:54,982 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:55,682 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:55,683 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:55,714 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:55,852 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:55,935 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,078 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,223 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,265 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,405 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,485 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,509 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:56,537 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,039 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,118 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,179 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,232 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,315 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,402 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,495 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,592 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,654 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,786 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,907 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:57,964 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,025 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,083 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,129 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,200 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,363 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,365 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,411 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,450 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,547 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,640 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,641 INFO L303 Elim1Store]: Index analysis took 4207 ms [2019-01-11 14:53:58,642 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 1173 [2019-01-11 14:53:58,777 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,790 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,793 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,797 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,800 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,808 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,815 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,833 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,836 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:53:58,837 INFO L303 Elim1Store]: Index analysis took 191 ms [2019-01-11 14:53:58,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 1238 [2019-01-11 14:53:58,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:54:05,060 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:54:49,483 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,508 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,529 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,531 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,546 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,575 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,577 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,578 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,600 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,604 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,606 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,624 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,637 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,647 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,648 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,676 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,732 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,736 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,744 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,751 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,765 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,775 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,782 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,799 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,801 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,824 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,849 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,851 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,852 INFO L303 Elim1Store]: Index analysis took 384 ms [2019-01-11 14:54:49,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 1091 [2019-01-11 14:54:49,903 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,907 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,910 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,912 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,914 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,917 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,919 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,922 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,925 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:54:49,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 37 disjoint index pairs (out of 28 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 863 [2019-01-11 14:54:49,931 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:54:50,656 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:54:54,627 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:54:54,628 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:689, output treesize:557 [2019-01-11 14:55:23,008 WARN L181 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 89 [2019-01-11 14:55:59,027 WARN L181 SmtUtils]: Spent 36.01 s on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-01-11 14:55:59,289 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,337 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,339 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,340 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,341 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,574 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,840 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:55:59,924 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:00,028 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:00,258 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,199 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,547 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,557 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,690 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,778 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:02,965 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:03,204 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:03,577 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:03,661 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:03,749 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:03,857 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:04,266 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:04,444 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:04,483 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:04,544 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:04,880 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,148 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,174 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,209 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,320 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,730 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:05,986 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:06,127 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:06,230 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:06,347 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:06,703 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,109 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,215 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,321 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,324 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,490 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:07,595 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:09,612 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (mod (+ (mod (+ (mod (+ v_subst_4 1) 256) 1) 256) 1) 256) (+ v_subst_4 (- 1))) [2019-01-11 14:56:09,613 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:09,955 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,100 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,285 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,286 INFO L303 Elim1Store]: Index analysis took 11256 ms [2019-01-11 14:56:10,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 46 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 1732 [2019-01-11 14:56:10,488 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,493 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,495 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,508 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,516 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,520 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,526 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,535 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,538 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,542 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:56:10,543 INFO L303 Elim1Store]: Index analysis took 249 ms [2019-01-11 14:56:10,544 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 57 disjoint index pairs (out of 45 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 1417 [2019-01-11 14:56:10,546 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-01-11 14:56:23,848 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:57:05,648 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,656 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,669 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,675 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,703 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,735 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,738 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,754 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,756 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,758 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,778 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,798 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,811 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,812 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,823 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,825 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,826 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,827 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,839 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,850 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,929 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,972 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,973 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,975 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,977 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:05,993 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,007 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,013 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,014 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,015 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,025 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,031 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,057 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,069 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,103 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,107 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,108 INFO L303 Elim1Store]: Index analysis took 572 ms [2019-01-11 14:57:06,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 1540 [2019-01-11 14:57:06,144 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,146 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,196 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,198 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,217 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,247 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,251 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,255 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,259 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,266 INFO L701 Elim1Store]: detected not equals via solver [2019-01-11 14:57:06,266 INFO L303 Elim1Store]: Index analysis took 151 ms [2019-01-11 14:57:06,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 1248 [2019-01-11 14:57:06,269 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-01-11 14:57:07,842 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-01-11 14:57:19,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-01-11 14:57:19,083 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:841, output treesize:653 [2019-01-11 14:58:00,234 WARN L181 SmtUtils]: Spent 4.49 s on a formula simplification that was a NOOP. DAG size: 96 [2019-01-11 14:58:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 18 refuted. 18 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:58:00,248 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-11 14:58:06,190 WARN L181 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-01-11 14:58:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 15 refuted. 1 times theorem prover too weak. 9 trivial. 0 not checked. [2019-01-11 14:58:30,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-11 14:58:30,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 5] total 20 [2019-01-11 14:58:30,726 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-11 14:58:30,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-11 14:58:30,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-11 14:58:30,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=238, Unknown=43, NotChecked=0, Total=420 [2019-01-11 14:58:30,728 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-01-11 15:00:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 15:00:36,358 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-01-11 15:00:36,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-11 15:00:36,370 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-01-11 15:00:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 15:00:36,371 INFO L225 Difference]: With dead ends: 13 [2019-01-11 15:00:36,371 INFO L226 Difference]: Without dead ends: 0 [2019-01-11 15:00:36,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 149.0s TimeCoverageRelationStatistics Valid=139, Invalid=238, Unknown=43, NotChecked=0, Total=420 [2019-01-11 15:00:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-11 15:00:36,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-11 15:00:36,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-11 15:00:36,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-11 15:00:36,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-11 15:00:36,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 15:00:36,372 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-11 15:00:36,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-11 15:00:36,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-11 15:00:36,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-11 15:00:36,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-11 15:01:02,654 WARN L181 SmtUtils]: Spent 26.23 s on a formula simplification. DAG size of input: 374 DAG size of output: 35 [2019-01-11 15:01:02,656 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 9 30) no Hoare annotation was computed. [2019-01-11 15:01:02,657 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-01-11 15:01:02,657 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 9 30) no Hoare annotation was computed. [2019-01-11 15:01:02,657 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 30) no Hoare annotation was computed. [2019-01-11 15:01:02,657 INFO L444 ceAbstractionStarter]: At program point L18-1(lines 18 29) the Hoare annotation is: (let ((.cse0 (select main_a main_x)) (.cse1 (select main_a main_y))) (or (and (= .cse0 1000) (= .cse1 0) (= main_y (+ main_x 1))) (and (= .cse0 .cse1) (not (= 0 .cse1))) (exists ((main_yold Int)) (let ((.cse2 (select main_a main_yold)) (.cse3 (select main_a (+ main_yold (- 1))))) (and (= (mod main_yold 256) main_x) (= 0 .cse2) (= main_y (mod (+ main_yold 1) 256)) (= (select main_a main_y) .cse2) (= (select main_a main_x) .cse3) (= 1000 .cse3)))))) [2019-01-11 15:01:02,657 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 28) no Hoare annotation was computed. [2019-01-11 15:01:02,668 INFO L202 PluginConnector]: Adding new model SkatingStrawberry.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 03:01:02 BoogieIcfgContainer [2019-01-11 15:01:02,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-11 15:01:02,668 INFO L168 Benchmark]: Toolchain (without parser) took 639671.92 ms. Allocated memory was 141.0 MB in the beginning and 288.9 MB in the end (delta: 147.8 MB). Free memory was 108.6 MB in the beginning and 180.0 MB in the end (delta: -71.4 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2019-01-11 15:01:02,669 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-11 15:01:02,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 141.0 MB. Free memory was 108.4 MB in the beginning and 106.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-01-11 15:01:02,670 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 141.0 MB. Free memory was 106.6 MB in the beginning and 105.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-01-11 15:01:02,670 INFO L168 Benchmark]: RCFGBuilder took 247.94 ms. Allocated memory is still 141.0 MB. Free memory was 105.4 MB in the beginning and 96.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-01-11 15:01:02,670 INFO L168 Benchmark]: TraceAbstraction took 639349.77 ms. Allocated memory was 141.0 MB in the beginning and 288.9 MB in the end (delta: 147.8 MB). Free memory was 96.3 MB in the beginning and 180.0 MB in the end (delta: -83.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2019-01-11 15:01:02,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 109.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 141.0 MB. Free memory was 108.4 MB in the beginning and 106.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 141.0 MB. Free memory was 106.6 MB in the beginning and 105.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.94 ms. Allocated memory is still 141.0 MB. Free memory was 105.4 MB in the beginning and 96.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 639349.77 ms. Allocated memory was 141.0 MB in the beginning and 288.9 MB in the end (delta: 147.8 MB). Free memory was 96.3 MB in the beginning and 180.0 MB in the end (delta: -83.7 MB). Peak memory consumption was 64.1 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, 639.2s OverallTime, 5 OverallIterations, 8 TraceHistogramMax, 160.8s AutomataDifference, 0.0s DeadEndRemovalTime, 26.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 3 SDslu, 3 SDs, 0 SdLazy, 87 SolverSat, 9 SolverUnsat, 75 SolverUnknown, 0 SolverNotchecked, 158.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 9 SyntacticMatches, 13 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 159.9s 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, 0.8s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 10 NumberOfFragments, 73 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 3453 FormulaSimplificationTreeSizeReductionInter, 26.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 448.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 71 ConstructedInterpolants, 18 QuantifiedInterpolants, 91344 SizeOfPredicates, 38 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 31/150 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...