java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:50:43,844 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:50:43,847 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:50:43,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:50:43,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:50:43,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:50:43,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:50:43,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:50:43,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:50:43,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:50:43,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:50:43,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:50:43,870 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:50:43,870 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:50:43,872 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:50:43,872 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:50:43,873 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:50:43,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:50:43,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:50:43,878 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:50:43,879 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:50:43,880 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:50:43,883 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:50:43,883 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:50:43,883 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:50:43,884 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:50:43,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:50:43,886 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:50:43,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:50:43,888 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:50:43,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:50:43,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:50:43,891 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 13:50:43,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:50:43,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:50:43,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:50:43,907 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:50:43,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:50:43,907 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:50:43,907 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:50:43,908 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:50:43,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:50:43,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:50:43,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:50:43,971 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:50:43,971 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:50:43,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl [2018-07-23 13:50:43,973 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl' [2018-07-23 13:50:44,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:50:44,021 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:50:44,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:50:44,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:50:44,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:50:44,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:50:44,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:50:44,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:50:44,073 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:50:44,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/1) ... [2018-07-23 13:50:44,160 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:50:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:50:44,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:50:44,308 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:50:44,310 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:50:44 BoogieIcfgContainer [2018-07-23 13:50:44,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:50:44,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:50:44,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:50:44,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:50:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:50:44" (1/2) ... [2018-07-23 13:50:44,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@272a604a and model type DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:50:44, skipping insertion in model container [2018-07-23 13:50:44,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:50:44" (2/2) ... [2018-07-23 13:50:44,323 INFO L112 eAbstractionObserver]: Analyzing ICFG DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl [2018-07-23 13:50:44,333 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:50:44,345 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:50:44,400 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:50:44,401 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:50:44,401 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:50:44,401 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:50:44,402 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:50:44,402 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:50:44,402 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:50:44,402 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:50:44,403 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:50:44,420 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2018-07-23 13:50:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-23 13:50:44,433 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:44,434 INFO L357 BasicCegarLoop]: trace histogram [1, 1] [2018-07-23 13:50:44,434 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:44,441 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2018-07-23 13:50:44,448 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,612 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:50:44,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 13:50:44,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,616 INFO L185 omatonBuilderFactory]: Interpolants [7#true, 8#false, 9#(and (<= y 42) (or (< 11 (div x 2)) (<= x (* 2 (div x 2)))) (<= 42 y))] [2018-07-23 13:50:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,618 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:50:44,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:50:44,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:50:44,635 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2018-07-23 13:50:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:44,679 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 13:50:44,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:50:44,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-23 13:50:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:44,696 INFO L225 Difference]: With dead ends: 7 [2018-07-23 13:50:44,696 INFO L226 Difference]: Without dead ends: 4 [2018-07-23 13:50:44,701 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:50:44,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2018-07-23 13:50:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-07-23 13:50:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-07-23 13:50:44,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2018-07-23 13:50:44,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2018-07-23 13:50:44,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:44,741 INFO L471 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2018-07-23 13:50:44,741 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:50:44,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2018-07-23 13:50:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:50:44,742 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:44,742 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:50:44,743 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:44,743 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2018-07-23 13:50:44,743 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:44,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,828 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:44,828 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-07-23 13:50:44,828 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,829 INFO L185 omatonBuilderFactory]: Interpolants [32#true, 33#false, 34#(and (or (< 10 (div x 2)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 35#(and (<= 44 y) (<= y 44) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:50:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:50:44,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:50:44,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:50:44,833 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 4 states. [2018-07-23 13:50:44,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:44,854 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2018-07-23 13:50:44,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:50:44,857 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-23 13:50:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:44,858 INFO L225 Difference]: With dead ends: 6 [2018-07-23 13:50:44,858 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:50:44,863 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:50:44,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:50:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:50:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:50:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:50:44,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:50:44,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:44,866 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:50:44,867 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:50:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:50:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:50:44,867 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:44,868 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1] [2018-07-23 13:50:44,868 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:44,868 INFO L82 PathProgramCache]: Analyzing trace with hash 927495, now seen corresponding path program 2 times [2018-07-23 13:50:44,869 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,993 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:44,993 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:50:44,993 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,994 INFO L185 omatonBuilderFactory]: Interpolants [58#true, 59#false, 60#(and (<= y 42) (<= 42 y) (or (< 9 (div x 2)) (<= x (* 2 (div x 2))))), 61#(and (<= 44 y) (<= y 44) (or (<= 22 x) (<= x 20))), 62#(and (or (<= 24 x) (<= x 22)) (<= 46 y) (<= y 46))] [2018-07-23 13:50:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:44,997 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:50:44,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:50:44,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:50:44,998 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2018-07-23 13:50:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,042 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 13:50:45,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:50:45,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-23 13:50:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,043 INFO L225 Difference]: With dead ends: 7 [2018-07-23 13:50:45,043 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:50:45,044 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:50:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:50:45,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:50:45,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:50:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:50:45,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:50:45,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,048 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:50:45,048 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:50:45,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:50:45,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:50:45,049 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,049 INFO L357 BasicCegarLoop]: trace histogram [3, 1, 1] [2018-07-23 13:50:45,049 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,050 INFO L82 PathProgramCache]: Analyzing trace with hash 28752289, now seen corresponding path program 3 times [2018-07-23 13:50:45,050 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,154 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,154 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,155 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:50:45,155 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,160 INFO L185 omatonBuilderFactory]: Interpolants [89#true, 90#false, 91#(and (or (< 8 (div x 2)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 92#(and (<= 44 y) (<= y 44) (or (<= 20 x) (<= x 18))), 93#(and (or (<= 22 x) (<= x 20)) (<= 46 y) (<= y 46)), 94#(and (<= y 48) (or (<= 24 x) (<= x 22)) (<= 48 y))] [2018-07-23 13:50:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,160 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:50:45,160 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:50:45,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:50:45,161 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-07-23 13:50:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,203 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:50:45,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:50:45,204 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-07-23 13:50:45,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,204 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:50:45,205 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:50:45,205 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:50:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:50:45,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:50:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:50:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:50:45,210 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 13:50:45,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,210 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:50:45,210 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:50:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:50:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:50:45,211 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,211 INFO L357 BasicCegarLoop]: trace histogram [4, 1, 1] [2018-07-23 13:50:45,211 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,212 INFO L82 PathProgramCache]: Analyzing trace with hash 891320903, now seen corresponding path program 4 times [2018-07-23 13:50:45,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,289 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,289 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:50:45,289 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,296 INFO L185 omatonBuilderFactory]: Interpolants [128#(and (<= 44 y) (<= y 44) (or (<= 18 x) (<= x 16))), 129#(and (<= 46 y) (or (<= 20 x) (<= x 18)) (<= y 46)), 130#(and (<= y 48) (or (<= 22 x) (<= x 20)) (<= 48 y)), 131#(and (<= y 50) (<= 50 y) (or (<= 24 x) (<= x 22))), 125#true, 126#false, 127#(and (<= y 42) (<= 42 y) (or (< 7 (div x 2)) (<= x (* 2 (div x 2)))))] [2018-07-23 13:50:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:50:45,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:50:45,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:50:45,299 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 7 states. [2018-07-23 13:50:45,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,343 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:50:45,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:50:45,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-23 13:50:45,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,344 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:50:45,344 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:50:45,345 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:50:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:50:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:50:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:50:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:50:45,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 13:50:45,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,356 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:50:45,356 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:50:45,356 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:50:45,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:50:45,360 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,360 INFO L357 BasicCegarLoop]: trace histogram [5, 1, 1] [2018-07-23 13:50:45,361 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144161, now seen corresponding path program 5 times [2018-07-23 13:50:45,361 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,474 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,475 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:50:45,475 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,476 INFO L185 omatonBuilderFactory]: Interpolants [166#true, 167#false, 168#(and (<= y 42) (<= 42 y) (or (< 6 (div x 2)) (<= x (* 2 (div x 2))))), 169#(and (<= 44 y) (<= y 44) (or (<= x 14) (<= 16 x))), 170#(and (or (<= 18 x) (<= x 16)) (<= 46 y) (<= y 46)), 171#(and (<= y 48) (<= 48 y) (or (<= 20 x) (<= x 18))), 172#(and (<= y 50) (<= 50 y) (or (<= 22 x) (<= x 20))), 173#(and (<= 52 y) (or (<= 24 x) (<= x 22)) (<= y 52))] [2018-07-23 13:50:45,476 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,477 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:50:45,477 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:50:45,478 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:50:45,479 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2018-07-23 13:50:45,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,525 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 13:50:45,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:50:45,525 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-23 13:50:45,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,526 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:50:45,531 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 13:50:45,533 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:50:45,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 13:50:45,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 13:50:45,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:50:45,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 13:50:45,541 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 13:50:45,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,542 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 13:50:45,542 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:50:45,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 13:50:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:50:45,543 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,543 INFO L357 BasicCegarLoop]: trace histogram [6, 1, 1] [2018-07-23 13:50:45,543 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1860894087, now seen corresponding path program 6 times [2018-07-23 13:50:45,544 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,625 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,625 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,625 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:50:45,626 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,627 INFO L185 omatonBuilderFactory]: Interpolants [212#true, 213#false, 214#(and (or (< 5 (div x 2)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 215#(and (<= 44 y) (<= y 44) (or (<= 14 x) (<= x 12))), 216#(and (<= 46 y) (or (<= x 14) (<= 16 x)) (<= y 46)), 217#(and (<= y 48) (or (<= 18 x) (<= x 16)) (<= 48 y)), 218#(and (<= y 50) (<= 50 y) (or (<= 20 x) (<= x 18))), 219#(and (<= 52 y) (or (<= 22 x) (<= x 20)) (<= y 52)), 220#(and (or (<= 24 x) (<= x 22)) (<= 54 y) (<= y 54))] [2018-07-23 13:50:45,627 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:50:45,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:50:45,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:50:45,628 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2018-07-23 13:50:45,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,667 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:50:45,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:50:45,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-07-23 13:50:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,668 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:50:45,668 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:50:45,669 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:50:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:50:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:50:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:50:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:50:45,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 13:50:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,676 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:50:45,676 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:50:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:50:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:50:45,677 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,677 INFO L357 BasicCegarLoop]: trace histogram [7, 1, 1] [2018-07-23 13:50:45,677 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1853141793, now seen corresponding path program 7 times [2018-07-23 13:50:45,678 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,745 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,746 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,746 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:50:45,746 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,747 INFO L185 omatonBuilderFactory]: Interpolants [272#(and (or (<= 24 x) (<= x 22)) (<= y 56) (<= 56 y)), 263#true, 264#false, 265#(and (<= y 42) (<= 42 y) (or (<= x (* 2 (div x 2))) (< 4 (div x 2)))), 266#(and (or (<= 12 x) (<= x 10)) (<= 44 y) (<= y 44)), 267#(and (<= 46 y) (<= y 46) (or (<= 14 x) (<= x 12))), 268#(and (<= y 48) (<= 48 y) (or (<= x 14) (<= 16 x))), 269#(and (<= y 50) (<= 50 y) (or (<= 18 x) (<= x 16))), 270#(and (<= 52 y) (<= y 52) (or (<= 20 x) (<= x 18))), 271#(and (or (<= 22 x) (<= x 20)) (<= 54 y) (<= y 54))] [2018-07-23 13:50:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,748 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:50:45,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:50:45,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:50:45,749 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2018-07-23 13:50:45,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,802 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 13:50:45,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:50:45,802 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2018-07-23 13:50:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,803 INFO L225 Difference]: With dead ends: 12 [2018-07-23 13:50:45,803 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 13:50:45,804 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:50:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 13:50:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 13:50:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 13:50:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 13:50:45,814 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 13:50:45,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:45,817 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 13:50:45,817 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:50:45,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 13:50:45,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 13:50:45,818 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:45,818 INFO L357 BasicCegarLoop]: trace histogram [8, 1, 1] [2018-07-23 13:50:45,819 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:45,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1612820679, now seen corresponding path program 8 times [2018-07-23 13:50:45,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:45,919 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,920 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:45,920 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:50:45,921 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,925 INFO L185 omatonBuilderFactory]: Interpolants [320#false, 321#(and (<= y 42) (<= 42 y) (or (< 3 (div x 2)) (<= x (* 2 (div x 2))))), 322#(and (<= 44 y) (<= y 44) (or (<= x 8) (<= 10 x))), 323#(and (or (<= 12 x) (<= x 10)) (<= 46 y) (<= y 46)), 324#(and (<= y 48) (<= 48 y) (or (<= 14 x) (<= x 12))), 325#(and (<= y 50) (<= 50 y) (or (<= x 14) (<= 16 x))), 326#(and (<= 52 y) (or (<= 18 x) (<= x 16)) (<= y 52)), 327#(and (<= 54 y) (or (<= 20 x) (<= x 18)) (<= y 54)), 328#(and (or (<= 22 x) (<= x 20)) (<= y 56) (<= 56 y)), 329#(and (<= 58 y) (<= y 58) (or (<= 24 x) (<= x 22))), 319#true] [2018-07-23 13:50:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:45,926 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:50:45,926 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:50:45,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:50:45,929 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 11 states. [2018-07-23 13:50:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:45,996 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:50:45,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:50:45,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2018-07-23 13:50:45,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:45,998 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:50:45,999 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:50:45,999 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:50:46,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:50:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:50:46,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:50:46,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:50:46,008 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 13:50:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,009 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:50:46,009 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:50:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:50:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:50:46,010 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,010 INFO L357 BasicCegarLoop]: trace histogram [9, 1, 1] [2018-07-23 13:50:46,010 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1542166559, now seen corresponding path program 9 times [2018-07-23 13:50:46,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,112 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:46,112 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:50:46,113 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,115 INFO L185 omatonBuilderFactory]: Interpolants [384#(and (<= 46 y) (or (<= x 8) (<= 10 x)) (<= y 46)), 385#(and (or (<= 12 x) (<= x 10)) (<= y 48) (<= 48 y)), 386#(and (<= y 50) (<= 50 y) (or (<= 14 x) (<= x 12))), 387#(and (<= 52 y) (<= y 52) (or (<= x 14) (<= 16 x))), 388#(and (or (<= 18 x) (<= x 16)) (<= 54 y) (<= y 54)), 389#(and (<= y 56) (or (<= 20 x) (<= x 18)) (<= 56 y)), 390#(and (<= 58 y) (<= y 58) (or (<= 22 x) (<= x 20))), 391#(and (<= 60 y) (or (<= 24 x) (<= x 22)) (<= y 60)), 380#true, 381#false, 382#(and (<= y 42) (<= 42 y) (or (< 2 (div x 2)) (<= x (* 2 (div x 2))))), 383#(and (<= 44 y) (<= y 44) (or (<= 8 x) (<= x 6)))] [2018-07-23 13:50:46,115 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,115 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:50:46,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:50:46,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:50:46,117 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-07-23 13:50:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:46,169 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 13:50:46,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:50:46,170 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2018-07-23 13:50:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:46,171 INFO L225 Difference]: With dead ends: 14 [2018-07-23 13:50:46,171 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:50:46,172 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:50:46,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:50:46,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:50:46,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:50:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 13:50:46,178 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-07-23 13:50:46,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,179 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 13:50:46,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:50:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 13:50:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:50:46,180 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,180 INFO L357 BasicCegarLoop]: trace histogram [10, 1, 1] [2018-07-23 13:50:46,180 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash -562523129, now seen corresponding path program 10 times [2018-07-23 13:50:46,181 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,271 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:46,271 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:50:46,271 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:46,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,272 INFO L185 omatonBuilderFactory]: Interpolants [448#(and (<= y 42) (<= 42 y) (or (< 1 (div x 2)) (<= x (* 2 (div x 2))))), 449#(and (<= 44 y) (or (<= x 4) (<= 6 x)) (<= y 44)), 450#(and (<= 46 y) (or (<= 8 x) (<= x 6)) (<= y 46)), 451#(and (<= y 48) (<= 48 y) (or (<= x 8) (<= 10 x))), 452#(and (or (<= 12 x) (<= x 10)) (<= y 50) (<= 50 y)), 453#(and (<= 52 y) (<= y 52) (or (<= 14 x) (<= x 12))), 454#(and (<= 54 y) (<= y 54) (or (<= x 14) (<= 16 x))), 455#(and (or (<= 18 x) (<= x 16)) (<= y 56) (<= 56 y)), 456#(and (<= 58 y) (<= y 58) (or (<= 20 x) (<= x 18))), 457#(and (<= 60 y) (or (<= 22 x) (<= x 20)) (<= y 60)), 458#(and (or (<= 24 x) (<= x 22)) (<= y 62) (<= 62 y)), 446#true, 447#false] [2018-07-23 13:50:46,273 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,273 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:50:46,273 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:50:46,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:50:46,274 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2018-07-23 13:50:46,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:46,334 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:50:46,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:50:46,334 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2018-07-23 13:50:46,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:46,335 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:50:46,335 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:50:46,336 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:50:46,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:50:46,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:50:46,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:50:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:50:46,343 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-07-23 13:50:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,343 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:50:46,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:50:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:50:46,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:50:46,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,344 INFO L357 BasicCegarLoop]: trace histogram [11, 1, 1] [2018-07-23 13:50:46,345 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,345 INFO L82 PathProgramCache]: Analyzing trace with hash -258347871, now seen corresponding path program 11 times [2018-07-23 13:50:46,345 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:46,445 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,446 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:46,446 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:50:46,446 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,447 INFO L185 omatonBuilderFactory]: Interpolants [517#true, 518#false, 519#(and (or (< 0 (div x 2)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 520#(and (<= 44 y) (<= y 44) (or (<= 4 x) (<= x 2))), 521#(and (or (<= x 4) (<= 6 x)) (<= 46 y) (<= y 46)), 522#(and (<= y 48) (<= 48 y) (or (<= 8 x) (<= x 6))), 523#(and (<= y 50) (<= 50 y) (or (<= x 8) (<= 10 x))), 524#(and (or (<= 12 x) (<= x 10)) (<= 52 y) (<= y 52)), 525#(and (<= 54 y) (<= y 54) (or (<= 14 x) (<= x 12))), 526#(and (<= y 56) (or (<= x 14) (<= 16 x)) (<= 56 y)), 527#(and (<= 58 y) (<= y 58) (or (<= 18 x) (<= x 16))), 528#(and (<= 60 y) (or (<= 20 x) (<= x 18)) (<= y 60)), 529#(and (or (<= 22 x) (<= x 20)) (<= y 62) (<= 62 y)), 530#(and (<= y 64) (<= 64 y) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:50:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,448 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:50:46,448 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:50:46,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:50:46,449 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2018-07-23 13:50:46,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:46,517 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 13:50:46,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:50:46,517 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2018-07-23 13:50:46,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:46,518 INFO L225 Difference]: With dead ends: 16 [2018-07-23 13:50:46,518 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 13:50:46,519 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:50:46,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 13:50:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 13:50:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:50:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 13:50:46,526 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-07-23 13:50:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,527 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 13:50:46,527 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:50:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 13:50:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:50:46,528 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,528 INFO L357 BasicCegarLoop]: trace histogram [12, 1, 1] [2018-07-23 13:50:46,528 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,529 INFO L82 PathProgramCache]: Analyzing trace with hash 581150535, now seen corresponding path program 12 times [2018-07-23 13:50:46,529 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,644 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:46,644 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:50:46,645 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,646 INFO L185 omatonBuilderFactory]: Interpolants [593#true, 594#false, 595#(and (or (< 0 (+ (div x 2) 1)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 596#(and (<= 44 y) (<= y 44) (or (<= 2 x) (<= x 0))), 597#(and (<= 46 y) (or (<= 4 x) (<= x 2)) (<= y 46)), 598#(and (or (<= x 4) (<= 6 x)) (<= y 48) (<= 48 y)), 599#(and (<= y 50) (<= 50 y) (or (<= 8 x) (<= x 6))), 600#(and (<= 52 y) (or (<= x 8) (<= 10 x)) (<= y 52)), 601#(and (or (<= 12 x) (<= x 10)) (<= 54 y) (<= y 54)), 602#(and (<= y 56) (or (<= 14 x) (<= x 12)) (<= 56 y)), 603#(and (<= 58 y) (<= y 58) (or (<= x 14) (<= 16 x))), 604#(and (<= 60 y) (or (<= 18 x) (<= x 16)) (<= y 60)), 605#(and (or (<= 20 x) (<= x 18)) (<= y 62) (<= 62 y)), 606#(and (<= y 64) (<= 64 y) (or (<= 22 x) (<= x 20))), 607#(and (<= 66 y) (or (<= 24 x) (<= x 22)) (<= y 66))] [2018-07-23 13:50:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,646 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:50:46,647 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:50:46,647 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:50:46,647 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2018-07-23 13:50:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:46,725 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:50:46,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:50:46,725 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2018-07-23 13:50:46,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:46,726 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:50:46,726 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:50:46,727 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:50:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:50:46,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:50:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:50:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:50:46,736 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-07-23 13:50:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,736 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:50:46,736 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:50:46,736 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:50:46,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:50:46,737 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,737 INFO L357 BasicCegarLoop]: trace histogram [13, 1, 1] [2018-07-23 13:50:46,738 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,738 INFO L82 PathProgramCache]: Analyzing trace with hash 835797345, now seen corresponding path program 13 times [2018-07-23 13:50:46,738 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:46,860 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,861 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:46,861 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:50:46,861 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,862 INFO L185 omatonBuilderFactory]: Interpolants [674#true, 675#false, 676#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 2)) (<= x (* 2 (div x 2))))), 677#(and (<= 44 y) (<= y 44) (or (<= (+ x 2) 0) (<= 0 x))), 678#(and (<= 46 y) (<= y 46) (or (<= 2 x) (<= x 0))), 679#(and (<= y 48) (<= 48 y) (or (<= 4 x) (<= x 2))), 680#(and (or (<= x 4) (<= 6 x)) (<= y 50) (<= 50 y)), 681#(and (<= 52 y) (<= y 52) (or (<= 8 x) (<= x 6))), 682#(and (<= 54 y) (or (<= x 8) (<= 10 x)) (<= y 54)), 683#(and (or (<= 12 x) (<= x 10)) (<= y 56) (<= 56 y)), 684#(and (<= 58 y) (<= y 58) (or (<= 14 x) (<= x 12))), 685#(and (<= 60 y) (<= y 60) (or (<= x 14) (<= 16 x))), 686#(and (or (<= 18 x) (<= x 16)) (<= y 62) (<= 62 y)), 687#(and (<= y 64) (<= 64 y) (or (<= 20 x) (<= x 18))), 688#(and (<= 66 y) (or (<= 22 x) (<= x 20)) (<= y 66)), 689#(and (or (<= 24 x) (<= x 22)) (<= 68 y) (<= y 68))] [2018-07-23 13:50:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:46,863 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:50:46,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:50:46,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:50:46,864 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2018-07-23 13:50:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:46,949 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 13:50:46,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:50:46,949 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2018-07-23 13:50:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:46,950 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:50:46,950 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 13:50:46,951 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:50:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 13:50:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-23 13:50:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-23 13:50:46,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-23 13:50:46,959 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-07-23 13:50:46,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:46,960 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-23 13:50:46,960 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:50:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-23 13:50:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 13:50:46,961 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:46,961 INFO L357 BasicCegarLoop]: trace histogram [14, 1, 1] [2018-07-23 13:50:46,961 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:46,961 INFO L82 PathProgramCache]: Analyzing trace with hash 139913863, now seen corresponding path program 14 times [2018-07-23 13:50:46,961 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,095 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:47,095 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:50:47,096 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,096 INFO L185 omatonBuilderFactory]: Interpolants [768#(and (<= 54 y) (<= y 54) (or (<= 8 x) (<= x 6))), 769#(and (or (<= x 8) (<= 10 x)) (<= y 56) (<= 56 y)), 770#(and (or (<= 12 x) (<= x 10)) (<= 58 y) (<= y 58)), 771#(and (<= 60 y) (<= y 60) (or (<= 14 x) (<= x 12))), 772#(and (or (<= x 14) (<= 16 x)) (<= y 62) (<= 62 y)), 773#(and (<= y 64) (<= 64 y) (or (<= 18 x) (<= x 16))), 774#(and (<= 66 y) (<= y 66) (or (<= 20 x) (<= x 18))), 775#(and (or (<= 22 x) (<= x 20)) (<= 68 y) (<= y 68)), 776#(and (or (<= 24 x) (<= x 22)) (<= 70 y) (<= y 70)), 760#true, 761#false, 762#(and (<= y 42) (or (< 0 (+ (div x 2) 3)) (<= x (* 2 (div x 2)))) (<= 42 y)), 763#(and (<= 44 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 44)), 764#(and (<= 46 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 46)), 765#(and (<= y 48) (<= 48 y) (or (<= 2 x) (<= x 0))), 766#(and (<= y 50) (<= 50 y) (or (<= 4 x) (<= x 2))), 767#(and (or (<= x 4) (<= 6 x)) (<= 52 y) (<= y 52))] [2018-07-23 13:50:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:50:47,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:50:47,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:50:47,098 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 17 states. [2018-07-23 13:50:47,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:47,188 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:50:47,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:50:47,189 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2018-07-23 13:50:47,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:47,190 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:50:47,190 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:50:47,190 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:50:47,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:50:47,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:50:47,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:50:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:50:47,201 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-07-23 13:50:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:47,201 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:50:47,201 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:50:47,201 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:50:47,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:50:47,202 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:47,202 INFO L357 BasicCegarLoop]: trace histogram [15, 1, 1] [2018-07-23 13:50:47,206 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash 42362401, now seen corresponding path program 15 times [2018-07-23 13:50:47,207 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,367 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:47,367 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:50:47,367 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,368 INFO L185 omatonBuilderFactory]: Interpolants [864#(and (<= y 64) (<= 64 y) (or (<= x 14) (<= 16 x))), 865#(and (<= 66 y) (or (<= 18 x) (<= x 16)) (<= y 66)), 866#(and (<= 68 y) (or (<= 20 x) (<= x 18)) (<= y 68)), 867#(and (or (<= 22 x) (<= x 20)) (<= 70 y) (<= y 70)), 868#(and (or (<= 24 x) (<= x 22)) (<= y 72) (<= 72 y)), 851#true, 852#false, 853#(and (<= y 42) (<= 42 y) (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 4)))), 854#(and (<= 44 y) (<= y 44) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 855#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 46 y) (<= y 46)), 856#(and (<= y 48) (<= 48 y) (or (<= (+ x 2) 0) (<= 0 x))), 857#(and (<= y 50) (<= 50 y) (or (<= 2 x) (<= x 0))), 858#(and (<= 52 y) (or (<= 4 x) (<= x 2)) (<= y 52)), 859#(and (or (<= x 4) (<= 6 x)) (<= 54 y) (<= y 54)), 860#(and (<= y 56) (or (<= 8 x) (<= x 6)) (<= 56 y)), 861#(and (<= 58 y) (<= y 58) (or (<= x 8) (<= 10 x))), 862#(and (or (<= 12 x) (<= x 10)) (<= 60 y) (<= y 60)), 863#(and (<= y 62) (<= 62 y) (or (<= 14 x) (<= x 12)))] [2018-07-23 13:50:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,369 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:50:47,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:50:47,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:50:47,370 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 18 states. [2018-07-23 13:50:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:47,469 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-23 13:50:47,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:50:47,470 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 17 [2018-07-23 13:50:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:47,471 INFO L225 Difference]: With dead ends: 20 [2018-07-23 13:50:47,471 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:50:47,472 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:50:47,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:50:47,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:50:47,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:50:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 13:50:47,490 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-07-23 13:50:47,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:47,491 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 13:50:47,491 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:50:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 13:50:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:50:47,494 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:47,494 INFO L357 BasicCegarLoop]: trace histogram [16, 1, 1] [2018-07-23 13:50:47,494 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:47,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1313234375, now seen corresponding path program 16 times [2018-07-23 13:50:47,495 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,657 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:47,657 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:50:47,658 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,658 INFO L185 omatonBuilderFactory]: Interpolants [960#(and (<= y 64) (<= 64 y) (or (<= 14 x) (<= x 12))), 961#(and (<= 66 y) (<= y 66) (or (<= x 14) (<= 16 x))), 962#(and (<= 68 y) (or (<= 18 x) (<= x 16)) (<= y 68)), 963#(and (<= 70 y) (or (<= 20 x) (<= x 18)) (<= y 70)), 964#(and (or (<= 22 x) (<= x 20)) (<= y 72) (<= 72 y)), 965#(and (or (<= 24 x) (<= x 22)) (<= y 74) (<= 74 y)), 947#true, 948#false, 949#(and (or (< 0 (+ (div x 2) 5)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 950#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 951#(and (<= 46 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 46)), 952#(and (<= y 48) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 48 y)), 953#(and (<= y 50) (<= 50 y) (or (<= (+ x 2) 0) (<= 0 x))), 954#(and (<= 52 y) (<= y 52) (or (<= 2 x) (<= x 0))), 955#(and (<= 54 y) (or (<= 4 x) (<= x 2)) (<= y 54)), 956#(and (or (<= x 4) (<= 6 x)) (<= y 56) (<= 56 y)), 957#(and (<= 58 y) (<= y 58) (or (<= 8 x) (<= x 6))), 958#(and (<= 60 y) (or (<= x 8) (<= 10 x)) (<= y 60)), 959#(and (or (<= 12 x) (<= x 10)) (<= y 62) (<= 62 y))] [2018-07-23 13:50:47,659 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,659 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:50:47,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:50:47,660 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:50:47,660 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 19 states. [2018-07-23 13:50:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:47,779 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:50:47,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:50:47,780 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 18 [2018-07-23 13:50:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:47,780 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:50:47,780 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:50:47,783 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:50:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:50:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:50:47,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:50:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:50:47,797 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-07-23 13:50:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:47,798 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:50:47,798 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:50:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:50:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:50:47,799 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:47,799 INFO L357 BasicCegarLoop]: trace histogram [17, 1, 1] [2018-07-23 13:50:47,800 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2055559905, now seen corresponding path program 17 times [2018-07-23 13:50:47,800 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,963 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:47,964 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:50:47,964 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:47,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,965 INFO L185 omatonBuilderFactory]: Interpolants [1056#(and (<= 54 y) (<= y 54) (or (<= 2 x) (<= x 0))), 1057#(and (or (<= 4 x) (<= x 2)) (<= y 56) (<= 56 y)), 1058#(and (or (<= x 4) (<= 6 x)) (<= 58 y) (<= y 58)), 1059#(and (<= 60 y) (<= y 60) (or (<= 8 x) (<= x 6))), 1060#(and (or (<= x 8) (<= 10 x)) (<= y 62) (<= 62 y)), 1061#(and (<= y 64) (or (<= 12 x) (<= x 10)) (<= 64 y)), 1062#(and (<= 66 y) (<= y 66) (or (<= 14 x) (<= x 12))), 1063#(and (<= 68 y) (or (<= x 14) (<= 16 x)) (<= y 68)), 1064#(and (or (<= 18 x) (<= x 16)) (<= 70 y) (<= y 70)), 1065#(and (<= y 72) (or (<= 20 x) (<= x 18)) (<= 72 y)), 1066#(and (or (<= 22 x) (<= x 20)) (<= y 74) (<= 74 y)), 1067#(and (<= y 76) (or (<= 24 x) (<= x 22)) (<= 76 y)), 1048#true, 1049#false, 1050#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 6)) (<= x (* 2 (div x 2))))), 1051#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 1052#(and (<= 46 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 46)), 1053#(and (<= y 48) (<= 48 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 1054#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 50) (<= 50 y)), 1055#(and (<= 52 y) (<= y 52) (or (<= (+ x 2) 0) (<= 0 x)))] [2018-07-23 13:50:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:47,966 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:50:47,966 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:50:47,966 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:50:47,967 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 20 states. [2018-07-23 13:50:48,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:48,088 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-23 13:50:48,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:50:48,089 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2018-07-23 13:50:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:48,089 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:50:48,090 INFO L226 Difference]: Without dead ends: 21 [2018-07-23 13:50:48,090 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:50:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-07-23 13:50:48,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-07-23 13:50:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:50:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-07-23 13:50:48,106 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-07-23 13:50:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:48,106 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-07-23 13:50:48,107 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:50:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-07-23 13:50:48,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:50:48,108 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:48,108 INFO L357 BasicCegarLoop]: trace histogram [18, 1, 1] [2018-07-23 13:50:48,108 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:48,108 INFO L82 PathProgramCache]: Analyzing trace with hash -702152441, now seen corresponding path program 18 times [2018-07-23 13:50:48,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:48,357 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,358 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:48,358 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:50:48,358 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,359 INFO L185 omatonBuilderFactory]: Interpolants [1154#true, 1155#false, 1156#(and (or (< 0 (+ (div x 2) 7)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 1157#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 1158#(and (<= 46 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 46)), 1159#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1160#(and (<= y 50) (<= 50 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 1161#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 52 y) (<= y 52)), 1162#(and (<= 54 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 54)), 1163#(and (<= y 56) (or (<= 2 x) (<= x 0)) (<= 56 y)), 1164#(and (<= 58 y) (<= y 58) (or (<= 4 x) (<= x 2))), 1165#(and (or (<= x 4) (<= 6 x)) (<= 60 y) (<= y 60)), 1166#(and (or (<= 8 x) (<= x 6)) (<= y 62) (<= 62 y)), 1167#(and (<= y 64) (<= 64 y) (or (<= x 8) (<= 10 x))), 1168#(and (or (<= 12 x) (<= x 10)) (<= 66 y) (<= y 66)), 1169#(and (<= 68 y) (<= y 68) (or (<= 14 x) (<= x 12))), 1170#(and (<= 70 y) (<= y 70) (or (<= x 14) (<= 16 x))), 1171#(and (or (<= 18 x) (<= x 16)) (<= y 72) (<= 72 y)), 1172#(and (or (<= 20 x) (<= x 18)) (<= y 74) (<= 74 y)), 1173#(and (<= y 76) (or (<= 22 x) (<= x 20)) (<= 76 y)), 1174#(and (<= y 78) (or (<= 24 x) (<= x 22)) (<= 78 y))] [2018-07-23 13:50:48,359 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,360 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:50:48,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:50:48,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:50:48,361 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 21 states. [2018-07-23 13:50:48,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:48,517 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:50:48,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:50:48,517 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 20 [2018-07-23 13:50:48,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:48,518 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:50:48,518 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:50:48,519 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:50:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:50:48,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:50:48,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:50:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:50:48,532 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-07-23 13:50:48,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:48,533 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:50:48,533 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:50:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:50:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:50:48,537 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:48,537 INFO L357 BasicCegarLoop]: trace histogram [19, 1, 1] [2018-07-23 13:50:48,538 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:48,538 INFO L82 PathProgramCache]: Analyzing trace with hash -291889247, now seen corresponding path program 19 times [2018-07-23 13:50:48,538 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,756 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:48,756 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:50:48,757 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,760 INFO L185 omatonBuilderFactory]: Interpolants [1280#(and (or (<= 12 x) (<= x 10)) (<= 68 y) (<= y 68)), 1281#(and (<= 70 y) (<= y 70) (or (<= 14 x) (<= x 12))), 1282#(and (<= y 72) (or (<= x 14) (<= 16 x)) (<= 72 y)), 1283#(and (or (<= 18 x) (<= x 16)) (<= y 74) (<= 74 y)), 1284#(and (<= y 76) (or (<= 20 x) (<= x 18)) (<= 76 y)), 1285#(and (<= y 78) (or (<= 22 x) (<= x 20)) (<= 78 y)), 1286#(and (<= y 80) (or (<= 24 x) (<= x 22)) (<= 80 y)), 1265#true, 1266#false, 1267#(and (or (< 0 (+ (div x 2) 8)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 1268#(and (<= 44 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 44)), 1269#(and (<= 46 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 46)), 1270#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 1271#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1272#(and (<= 52 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 52)), 1273#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 54 y) (<= y 54)), 1274#(and (<= y 56) (or (<= (+ x 2) 0) (<= 0 x)) (<= 56 y)), 1275#(and (<= 58 y) (<= y 58) (or (<= 2 x) (<= x 0))), 1276#(and (<= 60 y) (or (<= 4 x) (<= x 2)) (<= y 60)), 1277#(and (or (<= x 4) (<= 6 x)) (<= y 62) (<= 62 y)), 1278#(and (<= y 64) (<= 64 y) (or (<= 8 x) (<= x 6))), 1279#(and (<= 66 y) (<= y 66) (or (<= x 8) (<= 10 x)))] [2018-07-23 13:50:48,761 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:48,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:50:48,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:50:48,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:50:48,762 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 22 states. [2018-07-23 13:50:48,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:48,915 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 13:50:48,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:50:48,915 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2018-07-23 13:50:48,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:48,916 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:50:48,916 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 13:50:48,917 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:50:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 13:50:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 13:50:48,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 13:50:48,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-07-23 13:50:48,934 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-07-23 13:50:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:48,934 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-07-23 13:50:48,934 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:50:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-07-23 13:50:48,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 13:50:48,935 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:48,935 INFO L357 BasicCegarLoop]: trace histogram [20, 1, 1] [2018-07-23 13:50:48,936 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:48,936 INFO L82 PathProgramCache]: Analyzing trace with hash -458632121, now seen corresponding path program 20 times [2018-07-23 13:50:48,936 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,157 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:49,157 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:50:49,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,158 INFO L185 omatonBuilderFactory]: Interpolants [1381#true, 1382#false, 1383#(and (<= y 42) (or (< 0 (+ (div x 2) 9)) (<= x (* 2 (div x 2)))) (<= 42 y)), 1384#(and (<= 44 y) (<= y 44) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 1385#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 46 y) (<= y 46)), 1386#(and (<= y 48) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 48 y)), 1387#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 1388#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1389#(and (<= 54 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 54)), 1390#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 56) (<= 56 y)), 1391#(and (<= 58 y) (<= y 58) (or (<= (+ x 2) 0) (<= 0 x))), 1392#(and (<= 60 y) (<= y 60) (or (<= 2 x) (<= x 0))), 1393#(and (or (<= 4 x) (<= x 2)) (<= y 62) (<= 62 y)), 1394#(and (<= y 64) (or (<= x 4) (<= 6 x)) (<= 64 y)), 1395#(and (<= 66 y) (<= y 66) (or (<= 8 x) (<= x 6))), 1396#(and (<= 68 y) (or (<= x 8) (<= 10 x)) (<= y 68)), 1397#(and (or (<= 12 x) (<= x 10)) (<= 70 y) (<= y 70)), 1398#(and (<= y 72) (<= 72 y) (or (<= 14 x) (<= x 12))), 1399#(and (<= y 74) (<= 74 y) (or (<= x 14) (<= 16 x))), 1400#(and (<= y 76) (or (<= 18 x) (<= x 16)) (<= 76 y)), 1401#(and (<= y 78) (or (<= 20 x) (<= x 18)) (<= 78 y)), 1402#(and (<= y 80) (or (<= 22 x) (<= x 20)) (<= 80 y)), 1403#(and (or (<= 24 x) (<= x 22)) (<= y 82) (<= 82 y))] [2018-07-23 13:50:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:50:49,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:50:49,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:50:49,162 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 23 states. [2018-07-23 13:50:49,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:49,322 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:50:49,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:50:49,323 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 22 [2018-07-23 13:50:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:49,323 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:50:49,324 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:50:49,324 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:50:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:50:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:50:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:50:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:50:49,341 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-07-23 13:50:49,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:49,341 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:50:49,341 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:50:49,342 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:50:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:50:49,343 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:49,343 INFO L357 BasicCegarLoop]: trace histogram [21, 1, 1] [2018-07-23 13:50:49,343 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:49,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1332693919, now seen corresponding path program 21 times [2018-07-23 13:50:49,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,577 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:49,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:50:49,578 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,579 INFO L185 omatonBuilderFactory]: Interpolants [1504#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 10)) (<= x (* 2 (div x 2))))), 1505#(and (<= 44 y) (<= y 44) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 1506#(and (<= 46 y) (<= y 46) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 1507#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 48) (<= 48 y)), 1508#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 1509#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 1510#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1511#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 56) (<= 56 y)), 1512#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 58 y) (<= y 58)), 1513#(and (<= 60 y) (<= y 60) (or (<= (+ x 2) 0) (<= 0 x))), 1514#(and (<= y 62) (<= 62 y) (or (<= 2 x) (<= x 0))), 1515#(and (<= y 64) (<= 64 y) (or (<= 4 x) (<= x 2))), 1516#(and (or (<= x 4) (<= 6 x)) (<= 66 y) (<= y 66)), 1517#(and (<= 68 y) (or (<= 8 x) (<= x 6)) (<= y 68)), 1518#(and (or (<= x 8) (<= 10 x)) (<= 70 y) (<= y 70)), 1519#(and (or (<= 12 x) (<= x 10)) (<= y 72) (<= 72 y)), 1520#(and (<= y 74) (<= 74 y) (or (<= 14 x) (<= x 12))), 1521#(and (<= y 76) (or (<= x 14) (<= 16 x)) (<= 76 y)), 1522#(and (<= y 78) (or (<= 18 x) (<= x 16)) (<= 78 y)), 1523#(and (<= y 80) (or (<= 20 x) (<= x 18)) (<= 80 y)), 1524#(and (or (<= 22 x) (<= x 20)) (<= y 82) (<= 82 y)), 1525#(and (or (<= 24 x) (<= x 22)) (<= 84 y) (<= y 84)), 1502#true, 1503#false] [2018-07-23 13:50:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:49,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:50:49,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:50:49,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:50:49,582 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 24 states. [2018-07-23 13:50:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:49,765 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-23 13:50:49,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:50:49,765 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2018-07-23 13:50:49,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:49,766 INFO L225 Difference]: With dead ends: 26 [2018-07-23 13:50:49,766 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:50:49,767 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:50:49,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:50:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:50:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:50:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-07-23 13:50:49,792 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-07-23 13:50:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:49,793 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-07-23 13:50:49,793 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:50:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-07-23 13:50:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:50:49,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:49,794 INFO L357 BasicCegarLoop]: trace histogram [22, 1, 1] [2018-07-23 13:50:49,794 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:49,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1636161415, now seen corresponding path program 22 times [2018-07-23 13:50:49,797 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,048 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:50,049 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:50:50,049 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,050 INFO L185 omatonBuilderFactory]: Interpolants [1628#true, 1629#false, 1630#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 11)) (<= x (* 2 (div x 2))))), 1631#(and (<= 44 y) (<= y 44) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 1632#(and (<= 46 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 46)), 1633#(and (<= y 48) (<= 48 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 1634#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 50) (<= 50 y)), 1635#(and (<= 52 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 52)), 1636#(and (<= 54 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 54)), 1637#(and (<= y 56) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 56 y)), 1638#(and (<= 58 y) (<= y 58) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 1639#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 60 y) (<= y 60)), 1640#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 62) (<= 62 y)), 1641#(and (<= y 64) (<= 64 y) (or (<= 2 x) (<= x 0))), 1642#(and (<= 66 y) (<= y 66) (or (<= 4 x) (<= x 2))), 1643#(and (or (<= x 4) (<= 6 x)) (<= 68 y) (<= y 68)), 1644#(and (<= 70 y) (<= y 70) (or (<= 8 x) (<= x 6))), 1645#(and (or (<= x 8) (<= 10 x)) (<= y 72) (<= 72 y)), 1646#(and (or (<= 12 x) (<= x 10)) (<= y 74) (<= 74 y)), 1647#(and (<= y 76) (<= 76 y) (or (<= 14 x) (<= x 12))), 1648#(and (<= y 78) (<= 78 y) (or (<= x 14) (<= 16 x))), 1649#(and (<= y 80) (or (<= 18 x) (<= x 16)) (<= 80 y)), 1650#(and (<= y 82) (or (<= 20 x) (<= x 18)) (<= 82 y)), 1651#(and (or (<= 22 x) (<= x 20)) (<= 84 y) (<= y 84)), 1652#(and (or (<= 24 x) (<= x 22)) (<= 86 y) (<= y 86))] [2018-07-23 13:50:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,050 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:50:50,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:50:50,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:50:50,052 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 25 states. [2018-07-23 13:50:50,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:50,242 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:50:50,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:50:50,242 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 24 [2018-07-23 13:50:50,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:50,243 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:50:50,243 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:50:50,244 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:50:50,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:50:50,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:50:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:50:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:50:50,262 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-07-23 13:50:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:50,263 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:50:50,263 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:50:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:50:50,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:50:50,264 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:50,264 INFO L357 BasicCegarLoop]: trace histogram [23, 1, 1] [2018-07-23 13:50:50,264 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:50,264 INFO L82 PathProgramCache]: Analyzing trace with hash -818603743, now seen corresponding path program 23 times [2018-07-23 13:50:50,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,516 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:50,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:50:50,517 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,518 INFO L185 omatonBuilderFactory]: Interpolants [1759#true, 1760#false, 1761#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 12)) (<= x (* 2 (div x 2))))), 1762#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 1763#(and (<= 46 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 46)), 1764#(and (<= y 48) (<= 48 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 1765#(and (<= y 50) (<= 50 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 1766#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 52 y) (<= y 52)), 1767#(and (<= 54 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 54)), 1768#(and (<= y 56) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 56 y)), 1769#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1770#(and (<= 60 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 60)), 1771#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 62) (<= 62 y)), 1772#(and (<= y 64) (<= 64 y) (or (<= (+ x 2) 0) (<= 0 x))), 1773#(and (<= 66 y) (<= y 66) (or (<= 2 x) (<= x 0))), 1774#(and (<= 68 y) (or (<= 4 x) (<= x 2)) (<= y 68)), 1775#(and (or (<= x 4) (<= 6 x)) (<= 70 y) (<= y 70)), 1776#(and (<= y 72) (or (<= 8 x) (<= x 6)) (<= 72 y)), 1777#(and (or (<= x 8) (<= 10 x)) (<= y 74) (<= 74 y)), 1778#(and (or (<= 12 x) (<= x 10)) (<= y 76) (<= 76 y)), 1779#(and (<= y 78) (<= 78 y) (or (<= 14 x) (<= x 12))), 1780#(and (<= y 80) (or (<= x 14) (<= 16 x)) (<= 80 y)), 1781#(and (or (<= 18 x) (<= x 16)) (<= y 82) (<= 82 y)), 1782#(and (<= 84 y) (or (<= 20 x) (<= x 18)) (<= y 84)), 1783#(and (or (<= 22 x) (<= x 20)) (<= 86 y) (<= y 86)), 1784#(and (or (<= 24 x) (<= x 22)) (<= y 88) (<= 88 y))] [2018-07-23 13:50:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:50,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:50:50,519 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:50:50,519 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:50:50,519 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 26 states. [2018-07-23 13:50:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:50,726 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-07-23 13:50:50,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:50:50,726 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 25 [2018-07-23 13:50:50,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:50,727 INFO L225 Difference]: With dead ends: 28 [2018-07-23 13:50:50,727 INFO L226 Difference]: Without dead ends: 27 [2018-07-23 13:50:50,728 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:50:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-23 13:50:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-23 13:50:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:50:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-07-23 13:50:50,747 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-07-23 13:50:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:50,748 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-07-23 13:50:50,749 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:50:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-07-23 13:50:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:50:50,749 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:50,749 INFO L357 BasicCegarLoop]: trace histogram [24, 1, 1] [2018-07-23 13:50:50,750 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:50,750 INFO L82 PathProgramCache]: Analyzing trace with hash 393087687, now seen corresponding path program 24 times [2018-07-23 13:50:50,750 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,047 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:51,047 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:50:51,047 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:51,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,048 INFO L185 omatonBuilderFactory]: Interpolants [1920#(and (or (<= 22 x) (<= x 20)) (<= y 88) (<= 88 y)), 1921#(and (or (<= 24 x) (<= x 22)) (<= y 90) (<= 90 y)), 1895#true, 1896#false, 1897#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 13)) (<= x (* 2 (div x 2))))), 1898#(and (<= 44 y) (<= y 44) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 1899#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 1900#(and (<= y 48) (<= 48 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 1901#(and (<= y 50) (<= 50 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 1902#(and (<= 52 y) (<= y 52) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 1903#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 54 y) (<= y 54)), 1904#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 56) (<= 56 y)), 1905#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 1906#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 1907#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 62) (<= 62 y)), 1908#(and (<= y 64) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 64 y)), 1909#(and (<= 66 y) (<= y 66) (or (<= (+ x 2) 0) (<= 0 x))), 1910#(and (<= 68 y) (<= y 68) (or (<= 2 x) (<= x 0))), 1911#(and (or (<= 4 x) (<= x 2)) (<= 70 y) (<= y 70)), 1912#(and (or (<= x 4) (<= 6 x)) (<= y 72) (<= 72 y)), 1913#(and (<= y 74) (<= 74 y) (or (<= 8 x) (<= x 6))), 1914#(and (<= y 76) (or (<= x 8) (<= 10 x)) (<= 76 y)), 1915#(and (or (<= 12 x) (<= x 10)) (<= y 78) (<= 78 y)), 1916#(and (<= y 80) (<= 80 y) (or (<= 14 x) (<= x 12))), 1917#(and (<= y 82) (or (<= x 14) (<= 16 x)) (<= 82 y)), 1918#(and (or (<= 18 x) (<= x 16)) (<= 84 y) (<= y 84)), 1919#(and (<= 86 y) (<= y 86) (or (<= 20 x) (<= x 18)))] [2018-07-23 13:50:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,049 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:50:51,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:50:51,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:50:51,050 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 27 states. [2018-07-23 13:50:51,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:51,286 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:50:51,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:50:51,287 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2018-07-23 13:50:51,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:51,287 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:50:51,287 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:50:51,288 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:50:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:50:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:50:51,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:50:51,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:50:51,309 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-07-23 13:50:51,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:51,309 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:50:51,310 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:50:51,310 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:50:51,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:50:51,310 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:51,311 INFO L357 BasicCegarLoop]: trace histogram [25, 1, 1] [2018-07-23 13:50:51,311 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:51,311 INFO L82 PathProgramCache]: Analyzing trace with hash -699183647, now seen corresponding path program 25 times [2018-07-23 13:50:51,311 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,572 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:51,573 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:50:51,573 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,574 INFO L185 omatonBuilderFactory]: Interpolants [2048#(and (<= y 62) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 62 y)), 2049#(and (<= y 64) (<= 64 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 2050#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 66 y) (<= y 66)), 2051#(and (<= 68 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 68)), 2052#(and (<= 70 y) (<= y 70) (or (<= 2 x) (<= x 0))), 2053#(and (<= y 72) (or (<= 4 x) (<= x 2)) (<= 72 y)), 2054#(and (or (<= x 4) (<= 6 x)) (<= y 74) (<= 74 y)), 2055#(and (<= y 76) (or (<= 8 x) (<= x 6)) (<= 76 y)), 2056#(and (<= y 78) (or (<= x 8) (<= 10 x)) (<= 78 y)), 2057#(and (or (<= 12 x) (<= x 10)) (<= y 80) (<= 80 y)), 2058#(and (<= y 82) (<= 82 y) (or (<= 14 x) (<= x 12))), 2059#(and (<= 84 y) (or (<= x 14) (<= 16 x)) (<= y 84)), 2060#(and (or (<= 18 x) (<= x 16)) (<= 86 y) (<= y 86)), 2061#(and (or (<= 20 x) (<= x 18)) (<= y 88) (<= 88 y)), 2062#(and (or (<= 22 x) (<= x 20)) (<= y 90) (<= 90 y)), 2063#(and (<= 92 y) (or (<= 24 x) (<= x 22)) (<= y 92)), 2036#true, 2037#false, 2038#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 14)) (<= x (* 2 (div x 2))))), 2039#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 2040#(and (<= 46 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 46)), 2041#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2042#(and (<= y 50) (<= 50 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 2043#(and (<= 52 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 52)), 2044#(and (<= 54 y) (<= y 54) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 2045#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 56) (<= 56 y)), 2046#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 2047#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)))] [2018-07-23 13:50:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:51,575 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:50:51,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:50:51,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:50:51,576 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 28 states. [2018-07-23 13:50:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:51,875 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-07-23 13:50:51,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:50:51,875 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 27 [2018-07-23 13:50:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:51,876 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:50:51,876 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 13:50:51,877 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:50:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 13:50:51,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-23 13:50:51,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-23 13:50:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-07-23 13:50:51,898 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-07-23 13:50:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:51,898 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-07-23 13:50:51,898 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:50:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-07-23 13:50:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 13:50:51,899 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:51,903 INFO L357 BasicCegarLoop]: trace histogram [26, 1, 1] [2018-07-23 13:50:51,903 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:51,904 INFO L82 PathProgramCache]: Analyzing trace with hash -199856633, now seen corresponding path program 26 times [2018-07-23 13:50:51,904 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,162 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:52,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:50:52,162 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,163 INFO L185 omatonBuilderFactory]: Interpolants [2182#true, 2183#false, 2184#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 15)) (<= x (* 2 (div x 2))))), 2185#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 2186#(and (<= 46 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 46)), 2187#(and (<= y 48) (<= 48 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 2188#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2189#(and (<= 52 y) (<= y 52) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 2190#(and (<= 54 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 54)), 2191#(and (<= y 56) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 56 y)), 2192#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 58 y) (<= y 58)), 2193#(and (<= 60 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 60)), 2194#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 62) (<= 62 y)), 2195#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 2196#(and (<= 66 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 66)), 2197#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 68 y) (<= y 68)), 2198#(and (<= 70 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 70)), 2199#(and (<= y 72) (<= 72 y) (or (<= 2 x) (<= x 0))), 2200#(and (or (<= 4 x) (<= x 2)) (<= y 74) (<= 74 y)), 2201#(and (or (<= x 4) (<= 6 x)) (<= y 76) (<= 76 y)), 2202#(and (<= y 78) (<= 78 y) (or (<= 8 x) (<= x 6))), 2203#(and (<= y 80) (or (<= x 8) (<= 10 x)) (<= 80 y)), 2204#(and (or (<= 12 x) (<= x 10)) (<= y 82) (<= 82 y)), 2205#(and (<= 84 y) (<= y 84) (or (<= 14 x) (<= x 12))), 2206#(and (<= 86 y) (<= y 86) (or (<= x 14) (<= 16 x))), 2207#(and (or (<= 18 x) (<= x 16)) (<= y 88) (<= 88 y)), 2208#(and (<= y 90) (or (<= 20 x) (<= x 18)) (<= 90 y)), 2209#(and (<= 92 y) (or (<= 22 x) (<= x 20)) (<= y 92)), 2210#(and (<= 94 y) (or (<= 24 x) (<= x 22)) (<= y 94))] [2018-07-23 13:50:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:50:52,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:50:52,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:50:52,166 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 29 states. [2018-07-23 13:50:52,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:52,373 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:50:52,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:50:52,374 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 28 [2018-07-23 13:50:52,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:52,374 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:50:52,374 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:50:52,375 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:50:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:50:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:50:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:50:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:50:52,396 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-07-23 13:50:52,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:52,396 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:50:52,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:50:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:50:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:50:52,397 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:52,397 INFO L357 BasicCegarLoop]: trace histogram [27, 1, 1] [2018-07-23 13:50:52,397 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:52,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1900588383, now seen corresponding path program 27 times [2018-07-23 13:50:52,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,683 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:52,683 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:50:52,684 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,684 INFO L185 omatonBuilderFactory]: Interpolants [2333#true, 2334#false, 2335#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 16)) (<= x (* 2 (div x 2))))), 2336#(and (<= 44 y) (<= y 44) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 2337#(and (<= 46 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 46)), 2338#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 2339#(and (<= y 50) (<= 50 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 2340#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2341#(and (<= 54 y) (<= y 54) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 2342#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 56) (<= 56 y)), 2343#(and (<= 58 y) (<= y 58) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 2344#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 60 y) (<= y 60)), 2345#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 62) (<= 62 y)), 2346#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 2347#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 2348#(and (<= 68 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 68)), 2349#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 70 y) (<= y 70)), 2350#(and (<= y 72) (or (<= (+ x 2) 0) (<= 0 x)) (<= 72 y)), 2351#(and (<= y 74) (<= 74 y) (or (<= 2 x) (<= x 0))), 2352#(and (<= y 76) (or (<= 4 x) (<= x 2)) (<= 76 y)), 2353#(and (or (<= x 4) (<= 6 x)) (<= y 78) (<= 78 y)), 2354#(and (<= y 80) (or (<= 8 x) (<= x 6)) (<= 80 y)), 2355#(and (<= y 82) (or (<= x 8) (<= 10 x)) (<= 82 y)), 2356#(and (or (<= 12 x) (<= x 10)) (<= 84 y) (<= y 84)), 2357#(and (<= 86 y) (<= y 86) (or (<= 14 x) (<= x 12))), 2358#(and (<= y 88) (or (<= x 14) (<= 16 x)) (<= 88 y)), 2359#(and (or (<= 18 x) (<= x 16)) (<= y 90) (<= 90 y)), 2360#(and (<= 92 y) (or (<= 20 x) (<= x 18)) (<= y 92)), 2361#(and (<= 94 y) (or (<= 22 x) (<= x 20)) (<= y 94)), 2362#(and (<= 96 y) (or (<= 24 x) (<= x 22)) (<= y 96))] [2018-07-23 13:50:52,685 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:52,685 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:50:52,685 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:50:52,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:50:52,686 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 30 states. [2018-07-23 13:50:52,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:52,901 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-07-23 13:50:52,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:50:52,902 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 29 [2018-07-23 13:50:52,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:52,902 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:50:52,902 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:50:52,903 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:50:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:50:52,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:50:52,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:50:52,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-07-23 13:50:52,923 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-07-23 13:50:52,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:52,924 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-07-23 13:50:52,924 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:50:52,924 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-07-23 13:50:52,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:50:52,924 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:52,925 INFO L357 BasicCegarLoop]: trace histogram [28, 1, 1] [2018-07-23 13:50:52,925 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:52,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1211302215, now seen corresponding path program 28 times [2018-07-23 13:50:52,925 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:52,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,177 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:53,177 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:50:53,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,178 INFO L185 omatonBuilderFactory]: Interpolants [2496#(and (<= 52 y) (<= y 52) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 2497#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2498#(and (<= y 56) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 56 y)), 2499#(and (<= 58 y) (<= y 58) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 2500#(and (<= 60 y) (<= y 60) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 2501#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 62) (<= 62 y)), 2502#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 2503#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 2504#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 2505#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 70 y) (<= y 70)), 2506#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 72) (<= 72 y)), 2507#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 74) (<= 74 y)), 2508#(and (<= y 76) (<= 76 y) (or (<= 2 x) (<= x 0))), 2509#(and (<= y 78) (or (<= 4 x) (<= x 2)) (<= 78 y)), 2510#(and (or (<= x 4) (<= 6 x)) (<= y 80) (<= 80 y)), 2511#(and (<= y 82) (or (<= 8 x) (<= x 6)) (<= 82 y)), 2512#(and (<= 84 y) (or (<= x 8) (<= 10 x)) (<= y 84)), 2513#(and (or (<= 12 x) (<= x 10)) (<= 86 y) (<= y 86)), 2514#(and (<= y 88) (<= 88 y) (or (<= 14 x) (<= x 12))), 2515#(and (<= y 90) (<= 90 y) (or (<= x 14) (<= 16 x))), 2516#(and (<= 92 y) (or (<= 18 x) (<= x 16)) (<= y 92)), 2517#(and (<= 94 y) (<= y 94) (or (<= 20 x) (<= x 18))), 2518#(and (<= 96 y) (or (<= 22 x) (<= x 20)) (<= y 96)), 2519#(and (or (<= 24 x) (<= x 22)) (<= y 98) (<= 98 y)), 2489#true, 2490#false, 2491#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 17)) (<= x (* 2 (div x 2))))), 2492#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 44 y) (<= y 44)), 2493#(and (<= 46 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 46)), 2494#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 2495#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)))] [2018-07-23 13:50:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,179 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:50:53,179 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:50:53,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:50:53,180 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 31 states. [2018-07-23 13:50:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:53,400 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:50:53,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:50:53,400 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 30 [2018-07-23 13:50:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:53,400 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:50:53,401 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:50:53,401 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:50:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:50:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:50:53,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:50:53,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:50:53,424 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-07-23 13:50:53,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:53,424 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:50:53,424 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:50:53,424 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:50:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:50:53,425 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:53,425 INFO L357 BasicCegarLoop]: trace histogram [29, 1, 1] [2018-07-23 13:50:53,425 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:53,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1104337055, now seen corresponding path program 29 times [2018-07-23 13:50:53,426 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,664 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:53,664 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:50:53,664 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:53,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,665 INFO L185 omatonBuilderFactory]: Interpolants [2650#true, 2651#false, 2652#(and (<= y 42) (or (< 0 (+ (div x 2) 18)) (<= x (* 2 (div x 2)))) (<= 42 y)), 2653#(and (<= 44 y) (<= y 44) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 2654#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 46 y) (<= y 46)), 2655#(and (<= y 48) (<= 48 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 2656#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 2657#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 2658#(and (<= 54 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 54)), 2659#(and (<= y 56) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 56 y)), 2660#(and (<= 58 y) (<= y 58) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 2661#(and (<= 60 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 60)), 2662#(and (<= y 62) (<= 62 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 2663#(and (<= y 64) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 64 y)), 2664#(and (<= 66 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 66)), 2665#(and (<= 68 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 68)), 2666#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 2667#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 72) (<= 72 y)), 2668#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 74) (<= 74 y)), 2669#(and (<= y 76) (or (<= (+ x 2) 0) (<= 0 x)) (<= 76 y)), 2670#(and (<= y 78) (<= 78 y) (or (<= 2 x) (<= x 0))), 2671#(and (<= y 80) (or (<= 4 x) (<= x 2)) (<= 80 y)), 2672#(and (or (<= x 4) (<= 6 x)) (<= y 82) (<= 82 y)), 2673#(and (<= 84 y) (or (<= 8 x) (<= x 6)) (<= y 84)), 2674#(and (<= 86 y) (<= y 86) (or (<= x 8) (<= 10 x))), 2675#(and (or (<= 12 x) (<= x 10)) (<= y 88) (<= 88 y)), 2676#(and (<= y 90) (<= 90 y) (or (<= 14 x) (<= x 12))), 2677#(and (<= 92 y) (or (<= x 14) (<= 16 x)) (<= y 92)), 2678#(and (<= 94 y) (or (<= 18 x) (<= x 16)) (<= y 94)), 2679#(and (<= 96 y) (or (<= 20 x) (<= x 18)) (<= y 96)), 2680#(and (or (<= 22 x) (<= x 20)) (<= y 98) (<= 98 y)), 2681#(and (<= 100 y) (or (<= 24 x) (<= x 22)) (<= y 100))] [2018-07-23 13:50:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:53,666 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:50:53,666 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:50:53,667 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:50:53,667 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 32 states. [2018-07-23 13:50:53,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:53,903 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-07-23 13:50:53,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:50:53,903 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 31 [2018-07-23 13:50:53,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:53,904 INFO L225 Difference]: With dead ends: 34 [2018-07-23 13:50:53,904 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 13:50:53,905 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:50:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 13:50:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-07-23 13:50:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:50:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-07-23 13:50:53,931 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-07-23 13:50:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:53,931 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-07-23 13:50:53,932 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:50:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-07-23 13:50:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:50:53,932 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:53,932 INFO L357 BasicCegarLoop]: trace histogram [30, 1, 1] [2018-07-23 13:50:53,933 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:53,933 INFO L82 PathProgramCache]: Analyzing trace with hash 125289607, now seen corresponding path program 30 times [2018-07-23 13:50:53,933 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,211 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:54,211 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:50:54,211 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,212 INFO L185 omatonBuilderFactory]: Interpolants [2816#true, 2817#false, 2818#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 19)) (<= x (* 2 (div x 2))))), 2819#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 2820#(and (<= 46 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 46)), 2821#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 48) (<= 48 y)), 2822#(and (<= y 50) (<= 50 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 2823#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 2824#(and (<= 54 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 54)), 2825#(and (<= y 56) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 56 y)), 2826#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2827#(and (<= 60 y) (<= y 60) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 2828#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 62) (<= 62 y)), 2829#(and (<= y 64) (<= 64 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 2830#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 66 y) (<= y 66)), 2831#(and (<= 68 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 68)), 2832#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 2833#(and (<= y 72) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 72 y)), 2834#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 74) (<= 74 y)), 2835#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 76) (<= 76 y)), 2836#(and (<= y 78) (or (<= (+ x 2) 0) (<= 0 x)) (<= 78 y)), 2837#(and (<= y 80) (<= 80 y) (or (<= 2 x) (<= x 0))), 2838#(and (<= y 82) (or (<= 4 x) (<= x 2)) (<= 82 y)), 2839#(and (or (<= x 4) (<= 6 x)) (<= 84 y) (<= y 84)), 2840#(and (<= 86 y) (<= y 86) (or (<= 8 x) (<= x 6))), 2841#(and (or (<= x 8) (<= 10 x)) (<= y 88) (<= 88 y)), 2842#(and (or (<= 12 x) (<= x 10)) (<= y 90) (<= 90 y)), 2843#(and (<= 92 y) (<= y 92) (or (<= 14 x) (<= x 12))), 2844#(and (<= 94 y) (<= y 94) (or (<= x 14) (<= 16 x))), 2845#(and (<= 96 y) (or (<= 18 x) (<= x 16)) (<= y 96)), 2846#(and (<= y 98) (<= 98 y) (or (<= 20 x) (<= x 18))), 2847#(and (<= 100 y) (or (<= 22 x) (<= x 20)) (<= y 100)), 2848#(and (<= y 102) (or (<= 24 x) (<= x 22)) (<= 102 y))] [2018-07-23 13:50:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,213 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:50:54,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:50:54,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:50:54,214 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 33 states. [2018-07-23 13:50:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:54,442 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:50:54,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:50:54,442 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 32 [2018-07-23 13:50:54,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:54,443 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:50:54,443 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:50:54,444 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:50:54,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:50:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:50:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:50:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:50:54,470 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-07-23 13:50:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:54,470 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:50:54,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:50:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:50:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:50:54,471 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:54,471 INFO L357 BasicCegarLoop]: trace histogram [31, 1, 1] [2018-07-23 13:50:54,471 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash -410989535, now seen corresponding path program 31 times [2018-07-23 13:50:54,472 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,773 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:54,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:50:54,774 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:54,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,775 INFO L185 omatonBuilderFactory]: Interpolants [3008#(and (<= y 80) (or (<= (+ x 2) 0) (<= 0 x)) (<= 80 y)), 3009#(and (<= y 82) (<= 82 y) (or (<= 2 x) (<= x 0))), 3010#(and (<= 84 y) (or (<= 4 x) (<= x 2)) (<= y 84)), 3011#(and (or (<= x 4) (<= 6 x)) (<= 86 y) (<= y 86)), 3012#(and (or (<= 8 x) (<= x 6)) (<= y 88) (<= 88 y)), 3013#(and (<= y 90) (or (<= x 8) (<= 10 x)) (<= 90 y)), 3014#(and (or (<= 12 x) (<= x 10)) (<= 92 y) (<= y 92)), 3015#(and (<= 94 y) (<= y 94) (or (<= 14 x) (<= x 12))), 3016#(and (<= 96 y) (<= y 96) (or (<= x 14) (<= 16 x))), 3017#(and (or (<= 18 x) (<= x 16)) (<= y 98) (<= 98 y)), 3018#(and (<= 100 y) (or (<= 20 x) (<= x 18)) (<= y 100)), 3019#(and (<= y 102) (or (<= 22 x) (<= x 20)) (<= 102 y)), 3020#(and (or (<= 24 x) (<= x 22)) (<= y 104) (<= 104 y)), 2987#true, 2988#false, 2989#(and (<= y 42) (or (< 0 (+ (div x 2) 20)) (<= x (* 2 (div x 2)))) (<= 42 y)), 2990#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 2991#(and (<= 46 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 46)), 2992#(and (<= y 48) (<= 48 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 2993#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 50) (<= 50 y)), 2994#(and (<= 52 y) (<= y 52) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 2995#(and (<= 54 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 54)), 2996#(and (<= y 56) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 56 y)), 2997#(and (<= 58 y) (<= y 58) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 2998#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 2999#(and (<= y 62) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 62 y)), 3000#(and (<= y 64) (<= 64 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 3001#(and (<= 66 y) (<= y 66) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3002#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 68 y) (<= y 68)), 3003#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 70 y) (<= y 70)), 3004#(and (<= y 72) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 72 y)), 3005#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 3006#(and (<= y 76) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 76 y)), 3007#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 78) (<= 78 y))] [2018-07-23 13:50:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:54,776 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:50:54,776 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:50:54,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:50:54,777 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 34 states. [2018-07-23 13:50:55,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:55,047 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-07-23 13:50:55,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:50:55,048 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 33 [2018-07-23 13:50:55,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:55,048 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:50:55,048 INFO L226 Difference]: Without dead ends: 35 [2018-07-23 13:50:55,049 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:50:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-07-23 13:50:55,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-07-23 13:50:55,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-23 13:50:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-07-23 13:50:55,127 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-07-23 13:50:55,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:55,128 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-07-23 13:50:55,128 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:50:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-07-23 13:50:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 13:50:55,129 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:55,129 INFO L357 BasicCegarLoop]: trace histogram [32, 1, 1] [2018-07-23 13:50:55,129 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:55,129 INFO L82 PathProgramCache]: Analyzing trace with hash 144226247, now seen corresponding path program 32 times [2018-07-23 13:50:55,130 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,432 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:55,432 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:50:55,433 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,433 INFO L185 omatonBuilderFactory]: Interpolants [3163#true, 3164#false, 3165#(and (or (< 0 (+ (div x 2) 21)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 3166#(and (<= 44 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 44)), 3167#(and (<= 46 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 46)), 3168#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 3169#(and (<= y 50) (<= 50 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 3170#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 52 y) (<= y 52)), 3171#(and (<= 54 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 54)), 3172#(and (<= y 56) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 56 y)), 3173#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 3174#(and (<= 60 y) (<= y 60) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 3175#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 3176#(and (<= y 64) (<= 64 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 3177#(and (<= 66 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 66)), 3178#(and (<= 68 y) (<= y 68) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3179#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 70 y) (<= y 70)), 3180#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 72) (<= 72 y)), 3181#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 74) (<= 74 y)), 3182#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 3183#(and (<= y 78) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 78 y)), 3184#(and (<= y 80) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 80 y)), 3185#(and (<= y 82) (or (<= (+ x 2) 0) (<= 0 x)) (<= 82 y)), 3186#(and (<= 84 y) (<= y 84) (or (<= 2 x) (<= x 0))), 3187#(and (<= 86 y) (<= y 86) (or (<= 4 x) (<= x 2))), 3188#(and (or (<= x 4) (<= 6 x)) (<= y 88) (<= 88 y)), 3189#(and (<= y 90) (<= 90 y) (or (<= 8 x) (<= x 6))), 3190#(and (<= 92 y) (or (<= x 8) (<= 10 x)) (<= y 92)), 3191#(and (or (<= 12 x) (<= x 10)) (<= 94 y) (<= y 94)), 3192#(and (<= 96 y) (<= y 96) (or (<= 14 x) (<= x 12))), 3193#(and (<= y 98) (<= 98 y) (or (<= x 14) (<= 16 x))), 3194#(and (<= 100 y) (or (<= 18 x) (<= x 16)) (<= y 100)), 3195#(and (<= y 102) (or (<= 20 x) (<= x 18)) (<= 102 y)), 3196#(and (or (<= 22 x) (<= x 20)) (<= y 104) (<= 104 y)), 3197#(and (<= 106 y) (or (<= 24 x) (<= x 22)) (<= y 106))] [2018-07-23 13:50:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,434 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:50:55,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:50:55,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:50:55,435 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 35 states. [2018-07-23 13:50:55,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:55,673 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:50:55,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:50:55,673 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 34 [2018-07-23 13:50:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:55,674 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:50:55,674 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:50:55,675 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:50:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:50:55,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:50:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:50:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:50:55,700 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-07-23 13:50:55,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:55,700 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:50:55,700 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:50:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:50:55,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:50:55,701 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:55,701 INFO L357 BasicCegarLoop]: trace histogram [33, 1, 1] [2018-07-23 13:50:55,701 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:55,702 INFO L82 PathProgramCache]: Analyzing trace with hash 176046305, now seen corresponding path program 33 times [2018-07-23 13:50:55,702 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,944 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:55,944 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:50:55,944 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,945 INFO L185 omatonBuilderFactory]: Interpolants [3344#true, 3345#false, 3346#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 22)) (<= x (* 2 (div x 2))))), 3347#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 3348#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 46 y) (<= y 46)), 3349#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 3350#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 3351#(and (<= 52 y) (<= y 52) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 3352#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 54 y) (<= y 54)), 3353#(and (<= y 56) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 56 y)), 3354#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 3355#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 3356#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 62) (<= 62 y)), 3357#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 3358#(and (<= 66 y) (<= y 66) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 3359#(and (<= 68 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 68)), 3360#(and (<= 70 y) (<= y 70) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3361#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 72) (<= 72 y)), 3362#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 74) (<= 74 y)), 3363#(and (<= y 76) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 76 y)), 3364#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 3365#(and (<= y 80) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 80 y)), 3366#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 82) (<= 82 y)), 3367#(and (<= 84 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 84)), 3368#(and (<= 86 y) (<= y 86) (or (<= 2 x) (<= x 0))), 3369#(and (or (<= 4 x) (<= x 2)) (<= y 88) (<= 88 y)), 3370#(and (or (<= x 4) (<= 6 x)) (<= y 90) (<= 90 y)), 3371#(and (<= 92 y) (or (<= 8 x) (<= x 6)) (<= y 92)), 3372#(and (<= 94 y) (or (<= x 8) (<= 10 x)) (<= y 94)), 3373#(and (<= 96 y) (or (<= 12 x) (<= x 10)) (<= y 96)), 3374#(and (<= y 98) (<= 98 y) (or (<= 14 x) (<= x 12))), 3375#(and (<= 100 y) (<= y 100) (or (<= x 14) (<= 16 x))), 3376#(and (<= y 102) (or (<= 18 x) (<= x 16)) (<= 102 y)), 3377#(and (<= y 104) (or (<= 20 x) (<= x 18)) (<= 104 y)), 3378#(and (<= 106 y) (or (<= 22 x) (<= x 20)) (<= y 106)), 3379#(and (<= 108 y) (or (<= 24 x) (<= x 22)) (<= y 108))] [2018-07-23 13:50:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:55,947 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:50:55,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:50:55,948 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:50:55,949 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 36 states. [2018-07-23 13:50:56,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:56,214 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-07-23 13:50:56,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:50:56,215 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 35 [2018-07-23 13:50:56,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:56,215 INFO L225 Difference]: With dead ends: 38 [2018-07-23 13:50:56,215 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:50:56,217 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:50:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:50:56,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:50:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:50:56,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-07-23 13:50:56,247 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-07-23 13:50:56,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:56,247 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-07-23 13:50:56,247 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:50:56,247 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-07-23 13:50:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:50:56,248 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:56,248 INFO L357 BasicCegarLoop]: trace histogram [34, 1, 1] [2018-07-23 13:50:56,248 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:56,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1162468103, now seen corresponding path program 34 times [2018-07-23 13:50:56,249 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:56,520 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:56,520 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:50:56,521 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:56,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:56,524 INFO L185 omatonBuilderFactory]: Interpolants [3530#true, 3531#false, 3532#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 23)) (<= x (* 2 (div x 2))))), 3533#(and (<= 44 y) (<= y 44) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 3534#(and (<= 46 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 46)), 3535#(and (<= y 48) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 48 y)), 3536#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 3537#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 3538#(and (<= 54 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 54)), 3539#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 56) (<= 56 y)), 3540#(and (<= 58 y) (<= y 58) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 3541#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 3542#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 62) (<= 62 y)), 3543#(and (<= y 64) (<= 64 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 3544#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 3545#(and (<= 68 y) (<= y 68) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 3546#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 70 y) (<= y 70)), 3547#(and (<= y 72) (<= 72 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3548#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 74) (<= 74 y)), 3549#(and (<= y 76) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 76 y)), 3550#(and (<= y 78) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 78 y)), 3551#(and (<= y 80) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 80 y)), 3552#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 82) (<= 82 y)), 3553#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 84 y) (<= y 84)), 3554#(and (<= 86 y) (<= y 86) (or (<= (+ x 2) 0) (<= 0 x))), 3555#(and (<= y 88) (<= 88 y) (or (<= 2 x) (<= x 0))), 3556#(and (<= y 90) (or (<= 4 x) (<= x 2)) (<= 90 y)), 3557#(and (or (<= x 4) (<= 6 x)) (<= 92 y) (<= y 92)), 3558#(and (<= 94 y) (<= y 94) (or (<= 8 x) (<= x 6))), 3559#(and (<= 96 y) (or (<= x 8) (<= 10 x)) (<= y 96)), 3560#(and (or (<= 12 x) (<= x 10)) (<= y 98) (<= 98 y)), 3561#(and (<= 100 y) (<= y 100) (or (<= 14 x) (<= x 12))), 3562#(and (<= y 102) (<= 102 y) (or (<= x 14) (<= 16 x))), 3563#(and (<= y 104) (or (<= 18 x) (<= x 16)) (<= 104 y)), 3564#(and (<= 106 y) (<= y 106) (or (<= 20 x) (<= x 18))), 3565#(and (<= 108 y) (or (<= 22 x) (<= x 20)) (<= y 108)), 3566#(and (<= 110 y) (or (<= 24 x) (<= x 22)) (<= y 110))] [2018-07-23 13:50:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:56,525 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:50:56,525 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:50:56,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:50:56,526 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 37 states. [2018-07-23 13:50:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:56,820 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:50:56,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:50:56,821 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 36 [2018-07-23 13:50:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:56,821 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:50:56,822 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:50:56,823 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:50:56,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:50:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:50:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:50:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:50:56,853 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-07-23 13:50:56,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:56,853 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:50:56,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:50:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:50:56,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:50:56,854 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:56,854 INFO L357 BasicCegarLoop]: trace histogram [35, 1, 1] [2018-07-23 13:50:56,854 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:56,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1676772769, now seen corresponding path program 35 times [2018-07-23 13:50:56,854 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,120 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:57,120 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:50:57,120 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,121 INFO L185 omatonBuilderFactory]: Interpolants [3721#true, 3722#false, 3723#(and (<= y 42) (or (< 0 (+ (div x 2) 24)) (<= x (* 2 (div x 2)))) (<= 42 y)), 3724#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 3725#(and (<= 46 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 46)), 3726#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 3727#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 50) (<= 50 y)), 3728#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 3729#(and (<= 54 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 54)), 3730#(and (<= y 56) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 56 y)), 3731#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 58 y) (<= y 58)), 3732#(and (<= 60 y) (<= y 60) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 3733#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 62) (<= 62 y)), 3734#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 3735#(and (<= 66 y) (<= y 66) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 3736#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 3737#(and (<= 70 y) (<= y 70) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 3738#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 72) (<= 72 y)), 3739#(and (<= y 74) (<= 74 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3740#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 76) (<= 76 y)), 3741#(and (<= y 78) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 78 y)), 3742#(and (<= y 80) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 80 y)), 3743#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 3744#(and (<= 84 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 84)), 3745#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 86 y) (<= y 86)), 3746#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 88) (<= 88 y)), 3747#(and (<= y 90) (<= 90 y) (or (<= 2 x) (<= x 0))), 3748#(and (<= 92 y) (or (<= 4 x) (<= x 2)) (<= y 92)), 3749#(and (or (<= x 4) (<= 6 x)) (<= 94 y) (<= y 94)), 3750#(and (<= 96 y) (<= y 96) (or (<= 8 x) (<= x 6))), 3751#(and (<= y 98) (or (<= x 8) (<= 10 x)) (<= 98 y)), 3752#(and (or (<= 12 x) (<= x 10)) (<= 100 y) (<= y 100)), 3753#(and (<= y 102) (<= 102 y) (or (<= 14 x) (<= x 12))), 3754#(and (<= y 104) (or (<= x 14) (<= 16 x)) (<= 104 y)), 3755#(and (<= 106 y) (or (<= 18 x) (<= x 16)) (<= y 106)), 3756#(and (<= 108 y) (or (<= 20 x) (<= x 18)) (<= y 108)), 3757#(and (<= 110 y) (or (<= 22 x) (<= x 20)) (<= y 110)), 3758#(and (<= y 112) (<= 112 y) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:50:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,125 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:50:57,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:50:57,126 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:50:57,126 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 38 states. [2018-07-23 13:50:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:57,403 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-07-23 13:50:57,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:50:57,403 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 37 [2018-07-23 13:50:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:57,404 INFO L225 Difference]: With dead ends: 40 [2018-07-23 13:50:57,404 INFO L226 Difference]: Without dead ends: 39 [2018-07-23 13:50:57,405 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:50:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-23 13:50:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-07-23 13:50:57,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:50:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-07-23 13:50:57,435 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-07-23 13:50:57,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:57,435 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-07-23 13:50:57,435 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:50:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-07-23 13:50:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:50:57,436 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:57,436 INFO L357 BasicCegarLoop]: trace histogram [36, 1, 1] [2018-07-23 13:50:57,436 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:57,436 INFO L82 PathProgramCache]: Analyzing trace with hash 440348231, now seen corresponding path program 36 times [2018-07-23 13:50:57,436 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,704 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:57,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:50:57,704 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,705 INFO L185 omatonBuilderFactory]: Interpolants [3917#true, 3918#false, 3919#(and (<= y 42) (or (< 0 (+ (div x 2) 25)) (<= x (* 2 (div x 2)))) (<= 42 y)), 3920#(and (<= 44 y) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 44)), 3921#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 46 y) (<= y 46)), 3922#(and (<= y 48) (<= 48 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 3923#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 3924#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 52 y) (<= y 52)), 3925#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 3926#(and (<= y 56) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 56 y)), 3927#(and (<= 58 y) (<= y 58) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 3928#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 60 y) (<= y 60)), 3929#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 62) (<= 62 y)), 3930#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 3931#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 3932#(and (<= 68 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 68)), 3933#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 3934#(and (<= y 72) (<= 72 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 3935#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 74) (<= 74 y)), 3936#(and (<= y 76) (<= 76 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 3937#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 78) (<= 78 y)), 3938#(and (<= y 80) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 80 y)), 3939#(and (<= y 82) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 82 y)), 3940#(and (<= 84 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 84)), 3941#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 86 y) (<= y 86)), 3942#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 88) (<= 88 y)), 3943#(and (<= y 90) (or (<= (+ x 2) 0) (<= 0 x)) (<= 90 y)), 3944#(and (<= 92 y) (<= y 92) (or (<= 2 x) (<= x 0))), 3945#(and (<= 94 y) (<= y 94) (or (<= 4 x) (<= x 2))), 3946#(and (<= 96 y) (or (<= x 4) (<= 6 x)) (<= y 96)), 3947#(and (<= y 98) (<= 98 y) (or (<= 8 x) (<= x 6))), 3948#(and (<= 100 y) (or (<= x 8) (<= 10 x)) (<= y 100)), 3949#(and (or (<= 12 x) (<= x 10)) (<= y 102) (<= 102 y)), 3950#(and (<= y 104) (<= 104 y) (or (<= 14 x) (<= x 12))), 3951#(and (<= 106 y) (<= y 106) (or (<= x 14) (<= 16 x))), 3952#(and (<= 108 y) (or (<= 18 x) (<= x 16)) (<= y 108)), 3953#(and (<= 110 y) (or (<= 20 x) (<= x 18)) (<= y 110)), 3954#(and (<= y 112) (<= 112 y) (or (<= 22 x) (<= x 20))), 3955#(and (or (<= 24 x) (<= x 22)) (<= 114 y) (<= y 114))] [2018-07-23 13:50:57,705 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:57,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:50:57,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:50:57,707 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:50:57,707 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 39 states. [2018-07-23 13:50:58,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:58,004 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:50:58,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:50:58,004 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 38 [2018-07-23 13:50:58,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:58,005 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:50:58,005 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:50:58,007 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:50:58,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:50:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:50:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:50:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:50:58,040 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-07-23 13:50:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:58,041 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:50:58,041 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:50:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:50:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:50:58,043 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:58,043 INFO L357 BasicCegarLoop]: trace histogram [37, 1, 1] [2018-07-23 13:50:58,043 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:58,044 INFO L82 PathProgramCache]: Analyzing trace with hash 765893217, now seen corresponding path program 37 times [2018-07-23 13:50:58,044 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:58,440 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:58,440 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:58,440 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:50:58,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:58,441 INFO L185 omatonBuilderFactory]: Interpolants [4118#true, 4119#false, 4120#(and (<= y 42) (or (< 0 (+ (div x 2) 26)) (<= x (* 2 (div x 2)))) (<= 42 y)), 4121#(and (<= 44 y) (<= y 44) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 4122#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 46 y) (<= y 46)), 4123#(and (<= y 48) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 48 y)), 4124#(and (<= y 50) (<= 50 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 4125#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 4126#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 54 y) (<= y 54)), 4127#(and (<= y 56) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 56 y)), 4128#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 4129#(and (<= 60 y) (<= y 60) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 4130#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 62) (<= 62 y)), 4131#(and (<= y 64) (<= 64 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 4132#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 4133#(and (<= 68 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 68)), 4134#(and (<= 70 y) (<= y 70) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 4135#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 4136#(and (<= y 74) (<= 74 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 4137#(and (<= y 76) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 76 y)), 4138#(and (<= y 78) (<= 78 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 4139#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 80) (<= 80 y)), 4140#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 82) (<= 82 y)), 4141#(and (<= 84 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 84)), 4142#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 4143#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 88) (<= 88 y)), 4144#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 90) (<= 90 y)), 4145#(and (<= 92 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 92)), 4146#(and (<= 94 y) (<= y 94) (or (<= 2 x) (<= x 0))), 4147#(and (<= 96 y) (or (<= 4 x) (<= x 2)) (<= y 96)), 4148#(and (or (<= x 4) (<= 6 x)) (<= y 98) (<= 98 y)), 4149#(and (<= 100 y) (<= y 100) (or (<= 8 x) (<= x 6))), 4150#(and (<= y 102) (or (<= x 8) (<= 10 x)) (<= 102 y)), 4151#(and (or (<= 12 x) (<= x 10)) (<= y 104) (<= 104 y)), 4152#(and (<= 106 y) (<= y 106) (or (<= 14 x) (<= x 12))), 4153#(and (<= 108 y) (<= y 108) (or (<= x 14) (<= 16 x))), 4154#(and (<= 110 y) (or (<= 18 x) (<= x 16)) (<= y 110)), 4155#(and (<= y 112) (<= 112 y) (or (<= 20 x) (<= x 18))), 4156#(and (or (<= 22 x) (<= x 20)) (<= 114 y) (<= y 114)), 4157#(and (or (<= 24 x) (<= x 22)) (<= 116 y) (<= y 116))] [2018-07-23 13:50:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:58,442 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:50:58,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:50:58,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:50:58,446 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 40 states. [2018-07-23 13:50:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:58,719 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-07-23 13:50:58,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:50:58,719 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 39 [2018-07-23 13:50:58,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:58,720 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:50:58,720 INFO L226 Difference]: Without dead ends: 41 [2018-07-23 13:50:58,721 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:50:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-23 13:50:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-07-23 13:50:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 13:50:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-07-23 13:50:58,746 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-07-23 13:50:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:58,747 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-07-23 13:50:58,747 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:50:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-07-23 13:50:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 13:50:58,747 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:58,747 INFO L357 BasicCegarLoop]: trace histogram [38, 1, 1] [2018-07-23 13:50:58,748 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -2027114105, now seen corresponding path program 38 times [2018-07-23 13:50:58,748 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:59,012 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,013 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:59,013 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:50:59,013 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,014 INFO L185 omatonBuilderFactory]: Interpolants [4352#(and (<= 94 y) (<= y 94) (or (<= (+ x 2) 0) (<= 0 x))), 4353#(and (<= 96 y) (<= y 96) (or (<= 2 x) (<= x 0))), 4354#(and (<= y 98) (or (<= 4 x) (<= x 2)) (<= 98 y)), 4355#(and (or (<= x 4) (<= 6 x)) (<= 100 y) (<= y 100)), 4356#(and (<= y 102) (<= 102 y) (or (<= 8 x) (<= x 6))), 4357#(and (<= y 104) (or (<= x 8) (<= 10 x)) (<= 104 y)), 4358#(and (or (<= 12 x) (<= x 10)) (<= 106 y) (<= y 106)), 4359#(and (<= 108 y) (<= y 108) (or (<= 14 x) (<= x 12))), 4360#(and (<= 110 y) (or (<= x 14) (<= 16 x)) (<= y 110)), 4361#(and (<= y 112) (<= 112 y) (or (<= 18 x) (<= x 16))), 4362#(and (<= 114 y) (<= y 114) (or (<= 20 x) (<= x 18))), 4363#(and (or (<= 22 x) (<= x 20)) (<= 116 y) (<= y 116)), 4364#(and (or (<= 24 x) (<= x 22)) (<= y 118) (<= 118 y)), 4324#true, 4325#false, 4326#(and (or (< 0 (+ (div x 2) 27)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 4327#(and (<= 44 y) (<= y 44) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 4328#(and (<= 46 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 46)), 4329#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 48) (<= 48 y)), 4330#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 4331#(and (<= 52 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 52)), 4332#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 4333#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 56) (<= 56 y)), 4334#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 4335#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 4336#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 62) (<= 62 y)), 4337#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 64) (<= 64 y)), 4338#(and (<= 66 y) (<= y 66) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 4339#(and (<= 68 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 68)), 4340#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 4341#(and (<= y 72) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 72 y)), 4342#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 4343#(and (<= y 76) (<= 76 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 4344#(and (<= y 78) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 78 y)), 4345#(and (<= y 80) (<= 80 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 4346#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 82) (<= 82 y)), 4347#(and (<= 84 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 84)), 4348#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 4349#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 4350#(and (<= y 90) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 90 y)), 4351#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 92 y) (<= y 92))] [2018-07-23 13:50:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,015 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:50:59,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:50:59,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:50:59,016 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 41 states. [2018-07-23 13:50:59,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:59,303 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:50:59,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:50:59,303 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 40 [2018-07-23 13:50:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:59,304 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:50:59,304 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:50:59,305 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:50:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:50:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:50:59,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:50:59,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:50:59,332 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-07-23 13:50:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:59,333 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:50:59,333 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:50:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:50:59,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:50:59,333 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:59,334 INFO L357 BasicCegarLoop]: trace histogram [39, 1, 1] [2018-07-23 13:50:59,334 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1583972129, now seen corresponding path program 39 times [2018-07-23 13:50:59,334 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:50:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,620 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:50:59,620 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:50:59,620 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:50:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,621 INFO L185 omatonBuilderFactory]: Interpolants [4544#(and (<= y 56) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 56 y)), 4545#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 58 y) (<= y 58)), 4546#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 4547#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 62) (<= 62 y)), 4548#(and (<= y 64) (<= 64 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 4549#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 66 y) (<= y 66)), 4550#(and (<= 68 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 68)), 4551#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 4552#(and (<= y 72) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 72 y)), 4553#(and (<= y 74) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 74 y)), 4554#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 4555#(and (<= y 78) (<= 78 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 4556#(and (<= y 80) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 80 y)), 4557#(and (<= y 82) (<= 82 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 4558#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 84 y) (<= y 84)), 4559#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 86 y) (<= y 86)), 4560#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 88) (<= 88 y)), 4561#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 4562#(and (<= 92 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 92)), 4563#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 94 y) (<= y 94)), 4564#(and (<= 96 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 96)), 4565#(and (<= y 98) (<= 98 y) (or (<= 2 x) (<= x 0))), 4566#(and (<= 100 y) (or (<= 4 x) (<= x 2)) (<= y 100)), 4567#(and (or (<= x 4) (<= 6 x)) (<= y 102) (<= 102 y)), 4568#(and (<= y 104) (or (<= 8 x) (<= x 6)) (<= 104 y)), 4569#(and (<= 106 y) (<= y 106) (or (<= x 8) (<= 10 x))), 4570#(and (or (<= 12 x) (<= x 10)) (<= 108 y) (<= y 108)), 4571#(and (<= 110 y) (<= y 110) (or (<= 14 x) (<= x 12))), 4572#(and (<= y 112) (<= 112 y) (or (<= x 14) (<= 16 x))), 4573#(and (or (<= 18 x) (<= x 16)) (<= 114 y) (<= y 114)), 4574#(and (or (<= 20 x) (<= x 18)) (<= 116 y) (<= y 116)), 4575#(and (or (<= 22 x) (<= x 20)) (<= y 118) (<= 118 y)), 4576#(and (or (<= 24 x) (<= x 22)) (<= y 120) (<= 120 y)), 4535#true, 4536#false, 4537#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 28)) (<= x (* 2 (div x 2))))), 4538#(and (<= 44 y) (<= y 44) (or (<= (+ x 54) 0) (<= 0 (+ x 52)))), 4539#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 46 y) (<= y 46)), 4540#(and (<= y 48) (<= 48 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 4541#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 50) (<= 50 y)), 4542#(and (<= 52 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 52)), 4543#(and (<= 54 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 54))] [2018-07-23 13:50:59,621 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:50:59,621 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:50:59,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:50:59,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:50:59,623 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 42 states. [2018-07-23 13:50:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:50:59,918 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-07-23 13:50:59,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:50:59,918 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 41 [2018-07-23 13:50:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:50:59,919 INFO L225 Difference]: With dead ends: 44 [2018-07-23 13:50:59,919 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:50:59,920 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:50:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:50:59,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:50:59,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:50:59,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-07-23 13:50:59,950 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-07-23 13:50:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:50:59,950 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-07-23 13:50:59,951 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:50:59,951 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-07-23 13:50:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:50:59,951 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:50:59,951 INFO L357 BasicCegarLoop]: trace histogram [40, 1, 1] [2018-07-23 13:50:59,951 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:50:59,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1858495687, now seen corresponding path program 40 times [2018-07-23 13:50:59,952 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:50:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:00,248 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,249 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:00,249 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:51:00,249 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,250 INFO L185 omatonBuilderFactory]: Interpolants [4751#true, 4752#false, 4753#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 29)) (<= x (* 2 (div x 2))))), 4754#(and (<= 44 y) (<= y 44) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 4755#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 46 y) (<= y 46)), 4756#(and (<= y 48) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 48 y)), 4757#(and (<= y 50) (<= 50 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 4758#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 52 y) (<= y 52)), 4759#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 54 y) (<= y 54)), 4760#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 56) (<= 56 y)), 4761#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 4762#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 60 y) (<= y 60)), 4763#(and (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 62) (<= 62 y)), 4764#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 4765#(and (<= 66 y) (<= y 66) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 4766#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 68 y) (<= y 68)), 4767#(and (<= 70 y) (<= y 70) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 4768#(and (<= y 72) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 72 y)), 4769#(and (<= y 74) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 74 y)), 4770#(and (<= y 76) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 76 y)), 4771#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 4772#(and (<= y 80) (<= 80 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 4773#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 82) (<= 82 y)), 4774#(and (<= 84 y) (<= y 84) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 4775#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 86 y) (<= y 86)), 4776#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 88) (<= 88 y)), 4777#(and (<= y 90) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 90 y)), 4778#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 4779#(and (<= 94 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 94)), 4780#(and (<= 96 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 96)), 4781#(and (<= y 98) (<= 98 y) (or (<= (+ x 2) 0) (<= 0 x))), 4782#(and (<= 100 y) (<= y 100) (or (<= 2 x) (<= x 0))), 4783#(and (<= y 102) (or (<= 4 x) (<= x 2)) (<= 102 y)), 4784#(and (or (<= x 4) (<= 6 x)) (<= y 104) (<= 104 y)), 4785#(and (<= 106 y) (<= y 106) (or (<= 8 x) (<= x 6))), 4786#(and (<= 108 y) (or (<= x 8) (<= 10 x)) (<= y 108)), 4787#(and (or (<= 12 x) (<= x 10)) (<= 110 y) (<= y 110)), 4788#(and (<= y 112) (<= 112 y) (or (<= 14 x) (<= x 12))), 4789#(and (<= 114 y) (<= y 114) (or (<= x 14) (<= 16 x))), 4790#(and (or (<= 18 x) (<= x 16)) (<= 116 y) (<= y 116)), 4791#(and (or (<= 20 x) (<= x 18)) (<= y 118) (<= 118 y)), 4792#(and (or (<= 22 x) (<= x 20)) (<= y 120) (<= 120 y)), 4793#(and (<= y 122) (or (<= 24 x) (<= x 22)) (<= 122 y))] [2018-07-23 13:51:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,251 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:51:00,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:51:00,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:51:00,252 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 43 states. [2018-07-23 13:51:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:00,551 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:51:00,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:51:00,552 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 42 [2018-07-23 13:51:00,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:00,552 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:51:00,552 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:51:00,553 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:51:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:51:00,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:51:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:51:00,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:51:00,579 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-07-23 13:51:00,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:00,579 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:51:00,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:51:00,580 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:51:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:51:00,580 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:00,580 INFO L357 BasicCegarLoop]: trace histogram [41, 1, 1] [2018-07-23 13:51:00,580 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:00,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1778791393, now seen corresponding path program 41 times [2018-07-23 13:51:00,581 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,870 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:00,870 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:51:00,870 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,871 INFO L185 omatonBuilderFactory]: Interpolants [4992#(and (<= y 78) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 78 y)), 4993#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 4994#(and (<= y 82) (<= 82 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 4995#(and (<= 84 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 84)), 4996#(and (<= 86 y) (<= y 86) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 4997#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 88) (<= 88 y)), 4998#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 90) (<= 90 y)), 4999#(and (<= 92 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 92)), 5000#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 5001#(and (<= 96 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 96)), 5002#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 98) (<= 98 y)), 5003#(and (<= 100 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 100)), 5004#(and (<= y 102) (<= 102 y) (or (<= 2 x) (<= x 0))), 5005#(and (<= y 104) (or (<= 4 x) (<= x 2)) (<= 104 y)), 5006#(and (or (<= x 4) (<= 6 x)) (<= 106 y) (<= y 106)), 5007#(and (<= 108 y) (<= y 108) (or (<= 8 x) (<= x 6))), 5008#(and (<= 110 y) (or (<= x 8) (<= 10 x)) (<= y 110)), 5009#(and (or (<= 12 x) (<= x 10)) (<= y 112) (<= 112 y)), 5010#(and (<= 114 y) (<= y 114) (or (<= 14 x) (<= x 12))), 5011#(and (or (<= x 14) (<= 16 x)) (<= 116 y) (<= y 116)), 5012#(and (or (<= 18 x) (<= x 16)) (<= y 118) (<= 118 y)), 5013#(and (<= y 120) (or (<= 20 x) (<= x 18)) (<= 120 y)), 5014#(and (<= y 122) (or (<= 22 x) (<= x 20)) (<= 122 y)), 5015#(and (or (<= 24 x) (<= x 22)) (<= y 124) (<= 124 y)), 4972#true, 4973#false, 4974#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 30)) (<= x (* 2 (div x 2))))), 4975#(and (<= 44 y) (<= y 44) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 4976#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 46 y) (<= y 46)), 4977#(and (<= y 48) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 48 y)), 4978#(and (<= y 50) (<= 50 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 4979#(and (<= 52 y) (<= y 52) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 4980#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 54 y) (<= y 54)), 4981#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 56) (<= 56 y)), 4982#(and (<= 58 y) (<= y 58) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 4983#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 4984#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 62) (<= 62 y)), 4985#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 4986#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 4987#(and (<= 68 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 68)), 4988#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 70 y) (<= y 70)), 4989#(and (<= y 72) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 72 y)), 4990#(and (<= y 74) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 74 y)), 4991#(and (<= y 76) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 76 y))] [2018-07-23 13:51:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:00,871 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:51:00,872 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:51:00,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:51:00,872 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 44 states. [2018-07-23 13:51:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:01,173 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-07-23 13:51:01,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:51:01,174 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 43 [2018-07-23 13:51:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:01,174 INFO L225 Difference]: With dead ends: 46 [2018-07-23 13:51:01,175 INFO L226 Difference]: Without dead ends: 45 [2018-07-23 13:51:01,175 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:51:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-07-23 13:51:01,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-07-23 13:51:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:51:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-07-23 13:51:01,250 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-07-23 13:51:01,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:01,251 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-07-23 13:51:01,251 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:51:01,251 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-07-23 13:51:01,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:51:01,251 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:01,251 INFO L357 BasicCegarLoop]: trace histogram [42, 1, 1] [2018-07-23 13:51:01,252 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:01,252 INFO L82 PathProgramCache]: Analyzing trace with hash -692041721, now seen corresponding path program 42 times [2018-07-23 13:51:01,252 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:01,557 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:01,557 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:51:01,557 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:01,558 INFO L185 omatonBuilderFactory]: Interpolants [5198#true, 5199#false, 5200#(and (<= y 42) (or (< 0 (+ (div x 2) 31)) (<= x (* 2 (div x 2)))) (<= 42 y)), 5201#(and (<= 44 y) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 44)), 5202#(and (<= 46 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 46)), 5203#(and (<= y 48) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 48 y)), 5204#(and (<= y 50) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 50 y)), 5205#(and (<= 52 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 52)), 5206#(and (<= 54 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 54)), 5207#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 56) (<= 56 y)), 5208#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 5209#(and (<= 60 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 60)), 5210#(and (<= y 62) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 62 y)), 5211#(and (<= y 64) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 64 y)), 5212#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 5213#(and (<= 68 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 68)), 5214#(and (<= 70 y) (<= y 70) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 5215#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 72) (<= 72 y)), 5216#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 74) (<= 74 y)), 5217#(and (<= y 76) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 76 y)), 5218#(and (<= y 78) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 78 y)), 5219#(and (<= y 80) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 80 y)), 5220#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 5221#(and (<= 84 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 84)), 5222#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 86 y) (<= y 86)), 5223#(and (<= y 88) (<= 88 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 5224#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 90) (<= 90 y)), 5225#(and (<= 92 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 92)), 5226#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 5227#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 5228#(and (<= y 98) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 98 y)), 5229#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 100 y) (<= y 100)), 5230#(and (<= y 102) (or (<= (+ x 2) 0) (<= 0 x)) (<= 102 y)), 5231#(and (<= y 104) (<= 104 y) (or (<= 2 x) (<= x 0))), 5232#(and (<= 106 y) (<= y 106) (or (<= 4 x) (<= x 2))), 5233#(and (or (<= x 4) (<= 6 x)) (<= 108 y) (<= y 108)), 5234#(and (<= 110 y) (or (<= 8 x) (<= x 6)) (<= y 110)), 5235#(and (<= y 112) (<= 112 y) (or (<= x 8) (<= 10 x))), 5236#(and (or (<= 12 x) (<= x 10)) (<= 114 y) (<= y 114)), 5237#(and (<= 116 y) (or (<= 14 x) (<= x 12)) (<= y 116)), 5238#(and (<= y 118) (or (<= x 14) (<= 16 x)) (<= 118 y)), 5239#(and (or (<= 18 x) (<= x 16)) (<= y 120) (<= 120 y)), 5240#(and (<= y 122) (<= 122 y) (or (<= 20 x) (<= x 18))), 5241#(and (or (<= 22 x) (<= x 20)) (<= y 124) (<= 124 y)), 5242#(and (<= y 126) (or (<= 24 x) (<= x 22)) (<= 126 y))] [2018-07-23 13:51:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:01,559 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:51:01,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:51:01,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:51:01,560 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 45 states. [2018-07-23 13:51:01,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:01,863 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:51:01,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:51:01,863 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 44 [2018-07-23 13:51:01,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:01,864 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:51:01,864 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:51:01,866 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=1893, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:51:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:51:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:51:01,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:51:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:51:01,894 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-07-23 13:51:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:01,895 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:51:01,895 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:51:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:51:01,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:51:01,895 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:01,895 INFO L357 BasicCegarLoop]: trace histogram [43, 1, 1] [2018-07-23 13:51:01,895 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:01,896 INFO L82 PathProgramCache]: Analyzing trace with hash 21543073, now seen corresponding path program 43 times [2018-07-23 13:51:01,896 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:02,175 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,175 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:02,175 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:51:02,175 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,176 INFO L185 omatonBuilderFactory]: Interpolants [5440#(and (<= 60 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 60)), 5441#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 62) (<= 62 y)), 5442#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 5443#(and (<= 66 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 66)), 5444#(and (<= 68 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 68)), 5445#(and (<= 70 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 70)), 5446#(and (<= y 72) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 72 y)), 5447#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 74) (<= 74 y)), 5448#(and (<= y 76) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 76 y)), 5449#(and (<= y 78) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 78 y)), 5450#(and (<= y 80) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 80 y)), 5451#(and (<= y 82) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 82 y)), 5452#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 5453#(and (<= 86 y) (<= y 86) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 5454#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 88) (<= 88 y)), 5455#(and (<= y 90) (<= 90 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 5456#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 92 y) (<= y 92)), 5457#(and (<= 94 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 94)), 5458#(and (<= 96 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 96)), 5459#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 5460#(and (<= 100 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 100)), 5461#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 102) (<= 102 y)), 5462#(and (<= y 104) (or (<= (+ x 2) 0) (<= 0 x)) (<= 104 y)), 5463#(and (<= 106 y) (<= y 106) (or (<= 2 x) (<= x 0))), 5464#(and (<= 108 y) (or (<= 4 x) (<= x 2)) (<= y 108)), 5465#(and (or (<= x 4) (<= 6 x)) (<= 110 y) (<= y 110)), 5466#(and (<= y 112) (<= 112 y) (or (<= 8 x) (<= x 6))), 5467#(and (<= 114 y) (or (<= x 8) (<= 10 x)) (<= y 114)), 5468#(and (or (<= 12 x) (<= x 10)) (<= 116 y) (<= y 116)), 5469#(and (<= y 118) (<= 118 y) (or (<= 14 x) (<= x 12))), 5470#(and (<= y 120) (<= 120 y) (or (<= x 14) (<= 16 x))), 5471#(and (<= y 122) (or (<= 18 x) (<= x 16)) (<= 122 y)), 5472#(and (<= y 124) (or (<= 20 x) (<= x 18)) (<= 124 y)), 5473#(and (<= y 126) (or (<= 22 x) (<= x 20)) (<= 126 y)), 5474#(and (<= 128 y) (or (<= 24 x) (<= x 22)) (<= y 128)), 5429#true, 5430#false, 5431#(and (<= y 42) (or (< 0 (+ (div x 2) 32)) (<= x (* 2 (div x 2)))) (<= 42 y)), 5432#(and (<= 44 y) (<= y 44) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 5433#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 46 y) (<= y 46)), 5434#(and (<= y 48) (<= 48 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 5435#(and (<= y 50) (<= 50 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 5436#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 52 y) (<= y 52)), 5437#(and (<= 54 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 54)), 5438#(and (<= y 56) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 56 y)), 5439#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 58 y) (<= y 58))] [2018-07-23 13:51:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,177 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:51:02,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:51:02,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:51:02,178 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 46 states. [2018-07-23 13:51:02,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:02,514 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-07-23 13:51:02,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:51:02,514 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 45 [2018-07-23 13:51:02,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:02,515 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:51:02,515 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 13:51:02,516 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:51:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 13:51:02,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 13:51:02,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 13:51:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-07-23 13:51:02,544 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-07-23 13:51:02,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:02,544 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-07-23 13:51:02,544 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:51:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-07-23 13:51:02,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 13:51:02,545 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:02,545 INFO L357 BasicCegarLoop]: trace histogram [44, 1, 1] [2018-07-23 13:51:02,545 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:02,545 INFO L82 PathProgramCache]: Analyzing trace with hash 667835207, now seen corresponding path program 44 times [2018-07-23 13:51:02,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,854 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:02,854 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:51:02,855 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,856 INFO L185 omatonBuilderFactory]: Interpolants [5696#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 5697#(and (<= y 102) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 102 y)), 5698#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 104) (<= 104 y)), 5699#(and (<= 106 y) (<= y 106) (or (<= (+ x 2) 0) (<= 0 x))), 5700#(and (<= 108 y) (<= y 108) (or (<= 2 x) (<= x 0))), 5701#(and (<= 110 y) (or (<= 4 x) (<= x 2)) (<= y 110)), 5702#(and (or (<= x 4) (<= 6 x)) (<= y 112) (<= 112 y)), 5703#(and (<= 114 y) (<= y 114) (or (<= 8 x) (<= x 6))), 5704#(and (or (<= x 8) (<= 10 x)) (<= 116 y) (<= y 116)), 5705#(and (or (<= 12 x) (<= x 10)) (<= y 118) (<= 118 y)), 5706#(and (<= y 120) (<= 120 y) (or (<= 14 x) (<= x 12))), 5707#(and (<= y 122) (<= 122 y) (or (<= x 14) (<= 16 x))), 5708#(and (or (<= 18 x) (<= x 16)) (<= y 124) (<= 124 y)), 5709#(and (<= y 126) (or (<= 20 x) (<= x 18)) (<= 126 y)), 5710#(and (<= 128 y) (or (<= 22 x) (<= x 20)) (<= y 128)), 5711#(and (<= y 130) (<= 130 y) (or (<= 24 x) (<= x 22))), 5665#true, 5666#false, 5667#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 33)) (<= x (* 2 (div x 2))))), 5668#(and (<= 44 y) (<= y 44) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 5669#(and (<= 46 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 46)), 5670#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 48) (<= 48 y)), 5671#(and (<= y 50) (<= 50 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 5672#(and (<= 52 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 52)), 5673#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 54 y) (<= y 54)), 5674#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 56) (<= 56 y)), 5675#(and (<= 58 y) (<= y 58) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 5676#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 60 y) (<= y 60)), 5677#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 62) (<= 62 y)), 5678#(and (<= y 64) (<= 64 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 5679#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 5680#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 68 y) (<= y 68)), 5681#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 5682#(and (<= y 72) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 72 y)), 5683#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 74) (<= 74 y)), 5684#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 76) (<= 76 y)), 5685#(and (<= y 78) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 78 y)), 5686#(and (<= y 80) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 80 y)), 5687#(and (<= y 82) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 82 y)), 5688#(and (<= 84 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 84)), 5689#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 5690#(and (<= y 88) (<= 88 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 5691#(and (<= y 90) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 90 y)), 5692#(and (<= 92 y) (<= y 92) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 5693#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 94 y) (<= y 94)), 5694#(and (<= 96 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 96)), 5695#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)))] [2018-07-23 13:51:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:02,856 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:51:02,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:51:02,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=2071, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:51:02,857 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 47 states. [2018-07-23 13:51:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:03,210 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:51:03,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:51:03,211 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 46 [2018-07-23 13:51:03,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:03,211 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:51:03,212 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:51:03,213 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=2071, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:51:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:51:03,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:51:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:51:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:51:03,249 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-07-23 13:51:03,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:03,250 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:51:03,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:51:03,250 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:51:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:51:03,250 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:03,250 INFO L357 BasicCegarLoop]: trace histogram [45, 1, 1] [2018-07-23 13:51:03,251 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash -771945119, now seen corresponding path program 45 times [2018-07-23 13:51:03,251 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:03,627 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:03,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:51:03,628 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:03,629 INFO L185 omatonBuilderFactory]: Interpolants [5952#(and (<= y 130) (<= 130 y) (or (<= 22 x) (<= x 20))), 5953#(and (or (<= 24 x) (<= x 22)) (<= y 132) (<= 132 y)), 5906#true, 5907#false, 5908#(and (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 34))) (<= y 42) (<= 42 y)), 5909#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 5910#(and (<= 46 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 46)), 5911#(and (<= y 48) (<= 48 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 5912#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 50) (<= 50 y)), 5913#(and (<= 52 y) (<= y 52) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 5914#(and (<= 54 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 54)), 5915#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 56) (<= 56 y)), 5916#(and (<= 58 y) (<= y 58) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 5917#(and (<= 60 y) (<= y 60) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 5918#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 62) (<= 62 y)), 5919#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 5920#(and (<= 66 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 66)), 5921#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 5922#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 70 y) (<= y 70)), 5923#(and (<= y 72) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 72 y)), 5924#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 74) (<= 74 y)), 5925#(and (<= y 76) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 76 y)), 5926#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 78) (<= 78 y)), 5927#(and (<= y 80) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 80 y)), 5928#(and (<= y 82) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 82 y)), 5929#(and (<= 84 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 84)), 5930#(and (<= 86 y) (<= y 86) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 5931#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 5932#(and (<= y 90) (<= 90 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 5933#(and (<= 92 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 92)), 5934#(and (<= 94 y) (<= y 94) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 5935#(and (<= 96 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 96)), 5936#(and (<= y 98) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 98 y)), 5937#(and (<= 100 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 100)), 5938#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 5939#(and (<= y 104) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 104 y)), 5940#(and (<= 106 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 106)), 5941#(and (<= 108 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 108)), 5942#(and (<= 110 y) (<= y 110) (or (<= 2 x) (<= x 0))), 5943#(and (<= y 112) (<= 112 y) (or (<= 4 x) (<= x 2))), 5944#(and (or (<= x 4) (<= 6 x)) (<= 114 y) (<= y 114)), 5945#(and (or (<= 8 x) (<= x 6)) (<= 116 y) (<= y 116)), 5946#(and (or (<= x 8) (<= 10 x)) (<= y 118) (<= 118 y)), 5947#(and (or (<= 12 x) (<= x 10)) (<= y 120) (<= 120 y)), 5948#(and (<= y 122) (<= 122 y) (or (<= 14 x) (<= x 12))), 5949#(and (<= y 124) (or (<= x 14) (<= 16 x)) (<= 124 y)), 5950#(and (<= y 126) (or (<= 18 x) (<= x 16)) (<= 126 y)), 5951#(and (<= 128 y) (or (<= 20 x) (<= x 18)) (<= y 128))] [2018-07-23 13:51:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:03,629 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:51:03,630 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:51:03,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:51:03,630 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 48 states. [2018-07-23 13:51:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:04,019 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-07-23 13:51:04,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:51:04,019 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 47 [2018-07-23 13:51:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:04,020 INFO L225 Difference]: With dead ends: 50 [2018-07-23 13:51:04,020 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:51:04,021 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:51:04,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:51:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:51:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:51:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-07-23 13:51:04,055 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-07-23 13:51:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:04,055 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-07-23 13:51:04,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:51:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-07-23 13:51:04,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:51:04,055 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:04,055 INFO L357 BasicCegarLoop]: trace histogram [46, 1, 1] [2018-07-23 13:51:04,056 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:04,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1839505031, now seen corresponding path program 46 times [2018-07-23 13:51:04,056 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:04,527 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:04,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:51:04,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:04,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:04,529 INFO L185 omatonBuilderFactory]: Interpolants [6152#true, 6153#false, 6154#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 35)) (<= x (* 2 (div x 2))))), 6155#(and (<= 44 y) (<= y 44) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 6156#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 46 y) (<= y 46)), 6157#(and (<= y 48) (<= 48 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 6158#(and (<= y 50) (<= 50 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 6159#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 52 y) (<= y 52)), 6160#(and (<= 54 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 54)), 6161#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 56) (<= 56 y)), 6162#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 58 y) (<= y 58)), 6163#(and (<= 60 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 60)), 6164#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 62) (<= 62 y)), 6165#(and (<= y 64) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 64 y)), 6166#(and (<= 66 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 66)), 6167#(and (<= 68 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 68)), 6168#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 6169#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 72) (<= 72 y)), 6170#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 6171#(and (<= y 76) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 76 y)), 6172#(and (<= y 78) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 78 y)), 6173#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 80) (<= 80 y)), 6174#(and (<= y 82) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 82 y)), 6175#(and (<= 84 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 84)), 6176#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 6177#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 88) (<= 88 y)), 6178#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 6179#(and (<= 92 y) (<= y 92) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 6180#(and (<= 94 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 94)), 6181#(and (<= 96 y) (<= y 96) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 6182#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 98) (<= 98 y)), 6183#(and (<= 100 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 100)), 6184#(and (<= y 102) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 102 y)), 6185#(and (<= y 104) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 104 y)), 6186#(and (<= 106 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 106)), 6187#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 108 y) (<= y 108)), 6188#(and (<= 110 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 110)), 6189#(and (<= y 112) (<= 112 y) (or (<= 2 x) (<= x 0))), 6190#(and (<= 114 y) (or (<= 4 x) (<= x 2)) (<= y 114)), 6191#(and (or (<= x 4) (<= 6 x)) (<= 116 y) (<= y 116)), 6192#(and (<= y 118) (or (<= 8 x) (<= x 6)) (<= 118 y)), 6193#(and (<= y 120) (or (<= x 8) (<= 10 x)) (<= 120 y)), 6194#(and (or (<= 12 x) (<= x 10)) (<= y 122) (<= 122 y)), 6195#(and (<= y 124) (or (<= 14 x) (<= x 12)) (<= 124 y)), 6196#(and (<= y 126) (<= 126 y) (or (<= x 14) (<= 16 x))), 6197#(and (<= 128 y) (or (<= 18 x) (<= x 16)) (<= y 128)), 6198#(and (<= y 130) (<= 130 y) (or (<= 20 x) (<= x 18))), 6199#(and (or (<= 22 x) (<= x 20)) (<= y 132) (<= 132 y)), 6200#(and (or (<= 24 x) (<= x 22)) (<= 134 y) (<= y 134))] [2018-07-23 13:51:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:04,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:51:04,529 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:51:04,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:51:04,530 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 49 states. [2018-07-23 13:51:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:04,887 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:51:04,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:51:04,887 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 48 [2018-07-23 13:51:04,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:04,888 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:51:04,888 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:51:04,889 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=2257, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:51:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:51:04,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:51:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:51:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:51:04,914 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-07-23 13:51:04,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:04,914 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:51:04,914 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:51:04,914 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:51:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:51:04,914 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:04,914 INFO L357 BasicCegarLoop]: trace histogram [47, 1, 1] [2018-07-23 13:51:04,915 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:04,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1190081057, now seen corresponding path program 47 times [2018-07-23 13:51:04,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,267 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:05,267 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:51:05,267 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,268 INFO L185 omatonBuilderFactory]: Interpolants [6403#true, 6404#false, 6405#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 36)) (<= x (* 2 (div x 2))))), 6406#(and (<= 44 y) (<= y 44) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 6407#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 46 y) (<= y 46)), 6408#(and (<= y 48) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 48 y)), 6409#(and (<= y 50) (<= 50 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 6410#(and (<= 52 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 52)), 6411#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 54 y) (<= y 54)), 6412#(and (<= y 56) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 56 y)), 6413#(and (<= 58 y) (<= y 58) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 6414#(and (<= 60 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 60)), 6415#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 62) (<= 62 y)), 6416#(and (<= y 64) (<= 64 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 6417#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 66 y) (<= y 66)), 6418#(and (<= 68 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 68)), 6419#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 70 y) (<= y 70)), 6420#(and (<= y 72) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 72 y)), 6421#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 74) (<= 74 y)), 6422#(and (<= y 76) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 76 y)), 6423#(and (<= y 78) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 78 y)), 6424#(and (<= y 80) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 80 y)), 6425#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 82) (<= 82 y)), 6426#(and (<= 84 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 84)), 6427#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 6428#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 88) (<= 88 y)), 6429#(and (<= y 90) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 90 y)), 6430#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 6431#(and (<= 94 y) (<= y 94) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 6432#(and (<= 96 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 96)), 6433#(and (<= y 98) (<= 98 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 6434#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 100 y) (<= y 100)), 6435#(and (<= y 102) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 102 y)), 6436#(and (<= y 104) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 104 y)), 6437#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 6438#(and (<= 108 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 108)), 6439#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 110 y) (<= y 110)), 6440#(and (<= y 112) (<= 112 y) (or (<= (+ x 2) 0) (<= 0 x))), 6441#(and (<= 114 y) (<= y 114) (or (<= 2 x) (<= x 0))), 6442#(and (or (<= 4 x) (<= x 2)) (<= 116 y) (<= y 116)), 6443#(and (or (<= x 4) (<= 6 x)) (<= y 118) (<= 118 y)), 6444#(and (<= y 120) (<= 120 y) (or (<= 8 x) (<= x 6))), 6445#(and (<= y 122) (<= 122 y) (or (<= x 8) (<= 10 x))), 6446#(and (or (<= 12 x) (<= x 10)) (<= y 124) (<= 124 y)), 6447#(and (<= y 126) (<= 126 y) (or (<= 14 x) (<= x 12))), 6448#(and (<= 128 y) (<= y 128) (or (<= x 14) (<= 16 x))), 6449#(and (<= y 130) (<= 130 y) (or (<= 18 x) (<= x 16))), 6450#(and (or (<= 20 x) (<= x 18)) (<= y 132) (<= 132 y)), 6451#(and (or (<= 22 x) (<= x 20)) (<= 134 y) (<= y 134)), 6452#(and (<= 136 y) (or (<= 24 x) (<= x 22)) (<= y 136))] [2018-07-23 13:51:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,268 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:51:05,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:51:05,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:51:05,269 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 50 states. [2018-07-23 13:51:05,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:05,596 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-07-23 13:51:05,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:51:05,597 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 49 [2018-07-23 13:51:05,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:05,597 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:51:05,597 INFO L226 Difference]: Without dead ends: 51 [2018-07-23 13:51:05,598 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:51:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-07-23 13:51:05,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-07-23 13:51:05,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:51:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-07-23 13:51:05,628 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-07-23 13:51:05,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:05,628 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-07-23 13:51:05,628 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:51:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-07-23 13:51:05,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:51:05,628 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:05,629 INFO L357 BasicCegarLoop]: trace histogram [48, 1, 1] [2018-07-23 13:51:05,629 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1762192953, now seen corresponding path program 48 times [2018-07-23 13:51:05,629 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,936 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:05,936 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:51:05,936 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,937 INFO L185 omatonBuilderFactory]: Interpolants [6659#true, 6660#false, 6661#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 37)) (<= x (* 2 (div x 2))))), 6662#(and (<= 44 y) (<= y 44) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 6663#(and (<= 46 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 46)), 6664#(and (<= y 48) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 48 y)), 6665#(and (<= y 50) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 50 y)), 6666#(and (<= 52 y) (<= y 52) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 6667#(and (<= 54 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 54)), 6668#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 56) (<= 56 y)), 6669#(and (<= 58 y) (<= y 58) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 6670#(and (<= 60 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 60)), 6671#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 62) (<= 62 y)), 6672#(and (<= y 64) (<= 64 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 6673#(and (<= 66 y) (<= y 66) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 6674#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 68 y) (<= y 68)), 6675#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 70 y) (<= y 70)), 6676#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 72) (<= 72 y)), 6677#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 6678#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 76) (<= 76 y)), 6679#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 6680#(and (<= y 80) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 80 y)), 6681#(and (<= y 82) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 82 y)), 6682#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 84 y) (<= y 84)), 6683#(and (<= 86 y) (<= y 86) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 6684#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 88) (<= 88 y)), 6685#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 6686#(and (<= 92 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 92)), 6687#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 6688#(and (<= 96 y) (<= y 96) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 6689#(and (<= y 98) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 98 y)), 6690#(and (<= 100 y) (<= y 100) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 6691#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 102) (<= 102 y)), 6692#(and (<= y 104) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 104 y)), 6693#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 6694#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 6695#(and (<= 110 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 110)), 6696#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 112) (<= 112 y)), 6697#(and (<= 114 y) (<= y 114) (or (<= (+ x 2) 0) (<= 0 x))), 6698#(and (<= 116 y) (or (<= 2 x) (<= x 0)) (<= y 116)), 6699#(and (or (<= 4 x) (<= x 2)) (<= y 118) (<= 118 y)), 6700#(and (or (<= x 4) (<= 6 x)) (<= y 120) (<= 120 y)), 6701#(and (<= y 122) (<= 122 y) (or (<= 8 x) (<= x 6))), 6702#(and (<= y 124) (or (<= x 8) (<= 10 x)) (<= 124 y)), 6703#(and (or (<= 12 x) (<= x 10)) (<= y 126) (<= 126 y)), 6704#(and (<= 128 y) (<= y 128) (or (<= 14 x) (<= x 12))), 6705#(and (<= y 130) (<= 130 y) (or (<= x 14) (<= 16 x))), 6706#(and (or (<= 18 x) (<= x 16)) (<= y 132) (<= 132 y)), 6707#(and (<= 134 y) (or (<= 20 x) (<= x 18)) (<= y 134)), 6708#(and (<= 136 y) (or (<= 22 x) (<= x 20)) (<= y 136)), 6709#(and (<= 138 y) (or (<= 24 x) (<= x 22)) (<= y 138))] [2018-07-23 13:51:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:05,937 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:51:05,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:51:05,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:51:05,938 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 51 states. [2018-07-23 13:51:06,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:06,319 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:51:06,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:51:06,319 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 50 [2018-07-23 13:51:06,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:06,320 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:51:06,320 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:51:06,321 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=2451, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:51:06,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:51:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:51:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:51:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:51:06,357 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-07-23 13:51:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:06,358 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:51:06,358 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:51:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:51:06,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:51:06,359 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:06,359 INFO L357 BasicCegarLoop]: trace histogram [49, 1, 1] [2018-07-23 13:51:06,359 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:06,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1206593249, now seen corresponding path program 49 times [2018-07-23 13:51:06,360 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:06,772 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:06,772 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:51:06,772 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:06,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:06,773 INFO L185 omatonBuilderFactory]: Interpolants [6920#true, 6921#false, 6922#(and (or (< 0 (+ (div x 2) 38)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 6923#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 6924#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 46 y) (<= y 46)), 6925#(and (<= y 48) (<= 48 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 6926#(and (<= y 50) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 50 y)), 6927#(and (<= 52 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 52)), 6928#(and (<= 54 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 54)), 6929#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 56) (<= 56 y)), 6930#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 58 y) (<= y 58)), 6931#(and (<= 60 y) (<= y 60) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 6932#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 62) (<= 62 y)), 6933#(and (<= y 64) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 64 y)), 6934#(and (<= 66 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 66)), 6935#(and (<= 68 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 68)), 6936#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 70 y) (<= y 70)), 6937#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 72) (<= 72 y)), 6938#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 74) (<= 74 y)), 6939#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 6940#(and (<= y 78) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 78 y)), 6941#(and (<= y 80) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 80 y)), 6942#(and (<= y 82) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 82 y)), 6943#(and (<= 84 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 84)), 6944#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 86 y) (<= y 86)), 6945#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 88) (<= 88 y)), 6946#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 6947#(and (<= 92 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 92)), 6948#(and (<= 94 y) (<= y 94) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 6949#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 6950#(and (<= y 98) (<= 98 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 6951#(and (<= 100 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 100)), 6952#(and (<= y 102) (<= 102 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 6953#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 104) (<= 104 y)), 6954#(and (<= 106 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 106)), 6955#(and (<= 108 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 108)), 6956#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 6957#(and (<= y 112) (<= 112 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 6958#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 114 y) (<= y 114)), 6959#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 116 y) (<= y 116)), 6960#(and (<= y 118) (<= 118 y) (or (<= 2 x) (<= x 0))), 6961#(and (<= y 120) (or (<= 4 x) (<= x 2)) (<= 120 y)), 6962#(and (or (<= x 4) (<= 6 x)) (<= y 122) (<= 122 y)), 6963#(and (<= y 124) (or (<= 8 x) (<= x 6)) (<= 124 y)), 6964#(and (<= y 126) (or (<= x 8) (<= 10 x)) (<= 126 y)), 6965#(and (<= 128 y) (or (<= 12 x) (<= x 10)) (<= y 128)), 6966#(and (<= y 130) (<= 130 y) (or (<= 14 x) (<= x 12))), 6967#(and (<= y 132) (<= 132 y) (or (<= x 14) (<= 16 x))), 6968#(and (or (<= 18 x) (<= x 16)) (<= 134 y) (<= y 134)), 6969#(and (<= 136 y) (or (<= 20 x) (<= x 18)) (<= y 136)), 6970#(and (<= 138 y) (or (<= 22 x) (<= x 20)) (<= y 138)), 6971#(and (or (<= 24 x) (<= x 22)) (<= 140 y) (<= y 140))] [2018-07-23 13:51:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:06,774 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:51:06,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:51:06,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=2551, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:51:06,775 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 52 states. [2018-07-23 13:51:07,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:07,201 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-07-23 13:51:07,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:51:07,201 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 51 [2018-07-23 13:51:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:07,202 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:51:07,202 INFO L226 Difference]: Without dead ends: 53 [2018-07-23 13:51:07,203 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=2551, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:51:07,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-23 13:51:07,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-23 13:51:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 13:51:07,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-07-23 13:51:07,239 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-07-23 13:51:07,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:07,240 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-07-23 13:51:07,240 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:51:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-07-23 13:51:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-23 13:51:07,240 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:07,241 INFO L357 BasicCegarLoop]: trace histogram [50, 1, 1] [2018-07-23 13:51:07,241 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:07,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1250315001, now seen corresponding path program 50 times [2018-07-23 13:51:07,241 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:07,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:07,612 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:07,612 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:51:07,612 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:07,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:07,613 INFO L185 omatonBuilderFactory]: Interpolants [7186#true, 7187#false, 7188#(and (<= y 42) (<= 42 y) (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 39)))), 7189#(and (<= 44 y) (<= y 44) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 7190#(and (<= 46 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 46)), 7191#(and (<= y 48) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 48 y)), 7192#(and (<= y 50) (<= 50 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 7193#(and (<= 52 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 52)), 7194#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 54 y) (<= y 54)), 7195#(and (<= y 56) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 56 y)), 7196#(and (<= 58 y) (<= y 58) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 7197#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 60 y) (<= y 60)), 7198#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 62) (<= 62 y)), 7199#(and (<= y 64) (<= 64 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 7200#(and (<= 66 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 66)), 7201#(and (<= 68 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 68)), 7202#(and (<= 70 y) (<= y 70) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 7203#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 72) (<= 72 y)), 7204#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 74) (<= 74 y)), 7205#(and (<= y 76) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 76 y)), 7206#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 7207#(and (<= y 80) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 80 y)), 7208#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 7209#(and (<= 84 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 84)), 7210#(and (<= 86 y) (<= y 86) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 7211#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 88) (<= 88 y)), 7212#(and (<= y 90) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 90 y)), 7213#(and (<= 92 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 92)), 7214#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 7215#(and (<= 96 y) (<= y 96) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 7216#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 7217#(and (<= 100 y) (<= y 100) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 7218#(and (<= y 102) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 102 y)), 7219#(and (<= y 104) (<= 104 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 7220#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 106 y) (<= y 106)), 7221#(and (<= 108 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 108)), 7222#(and (<= 110 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 110)), 7223#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 7224#(and (<= 114 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 114)), 7225#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 116 y) (<= y 116)), 7226#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 118) (<= 118 y)), 7227#(and (<= y 120) (<= 120 y) (or (<= 2 x) (<= x 0))), 7228#(and (<= y 122) (<= 122 y) (or (<= 4 x) (<= x 2))), 7229#(and (or (<= x 4) (<= 6 x)) (<= y 124) (<= 124 y)), 7230#(and (<= y 126) (<= 126 y) (or (<= 8 x) (<= x 6))), 7231#(and (<= 128 y) (or (<= x 8) (<= 10 x)) (<= y 128)), 7232#(and (or (<= 12 x) (<= x 10)) (<= y 130) (<= 130 y)), 7233#(and (<= y 132) (<= 132 y) (or (<= 14 x) (<= x 12))), 7234#(and (<= 134 y) (or (<= x 14) (<= 16 x)) (<= y 134)), 7235#(and (<= 136 y) (or (<= 18 x) (<= x 16)) (<= y 136)), 7236#(and (<= 138 y) (or (<= 20 x) (<= x 18)) (<= y 138)), 7237#(and (or (<= 22 x) (<= x 20)) (<= 140 y) (<= y 140)), 7238#(and (<= 142 y) (or (<= 24 x) (<= x 22)) (<= y 142))] [2018-07-23 13:51:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 1275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:07,613 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:51:07,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:51:07,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=2653, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:51:07,614 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 53 states. [2018-07-23 13:51:07,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:07,944 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:51:07,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:51:07,944 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 52 [2018-07-23 13:51:07,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:07,944 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:51:07,944 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:51:07,945 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=2653, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:51:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:51:07,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:51:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:51:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:51:07,972 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-07-23 13:51:07,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:07,972 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:51:07,972 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:51:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:51:07,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:51:07,973 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:07,973 INFO L357 BasicCegarLoop]: trace histogram [51, 1, 1] [2018-07-23 13:51:07,973 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:07,973 INFO L82 PathProgramCache]: Analyzing trace with hash -105059423, now seen corresponding path program 51 times [2018-07-23 13:51:07,973 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,289 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:08,289 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:51:08,289 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,290 INFO L185 omatonBuilderFactory]: Interpolants [7457#true, 7458#false, 7459#(and (or (< 0 (+ (div x 2) 40)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 7460#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 7461#(and (<= 46 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 46)), 7462#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 7463#(and (<= y 50) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 50 y)), 7464#(and (<= 52 y) (<= y 52) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 7465#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 54 y) (<= y 54)), 7466#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 56) (<= 56 y)), 7467#(and (<= 58 y) (<= y 58) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 7468#(and (<= 60 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 60)), 7469#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 62) (<= 62 y)), 7470#(and (<= y 64) (<= 64 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 7471#(and (<= 66 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 66)), 7472#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 68 y) (<= y 68)), 7473#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 70 y) (<= y 70)), 7474#(and (<= y 72) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 72 y)), 7475#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 74) (<= 74 y)), 7476#(and (<= y 76) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 76 y)), 7477#(and (<= y 78) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 78 y)), 7478#(and (<= y 80) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 80 y)), 7479#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 82) (<= 82 y)), 7480#(and (<= 84 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 84)), 7481#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 7482#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 88) (<= 88 y)), 7483#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 90) (<= 90 y)), 7484#(and (<= 92 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 92)), 7485#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 7486#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 7487#(and (<= y 98) (<= 98 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 7488#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 7489#(and (<= y 102) (<= 102 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 7490#(and (<= y 104) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 104 y)), 7491#(and (<= 106 y) (<= y 106) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 7492#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 108 y) (<= y 108)), 7493#(and (<= 110 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 110)), 7494#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 7495#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 7496#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 116 y) (<= y 116)), 7497#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 118) (<= 118 y)), 7498#(and (<= y 120) (or (<= (+ x 2) 0) (<= 0 x)) (<= 120 y)), 7499#(and (<= y 122) (<= 122 y) (or (<= 2 x) (<= x 0))), 7500#(and (<= y 124) (or (<= 4 x) (<= x 2)) (<= 124 y)), 7501#(and (or (<= x 4) (<= 6 x)) (<= y 126) (<= 126 y)), 7502#(and (<= 128 y) (<= y 128) (or (<= 8 x) (<= x 6))), 7503#(and (<= y 130) (<= 130 y) (or (<= x 8) (<= 10 x))), 7504#(and (or (<= 12 x) (<= x 10)) (<= y 132) (<= 132 y)), 7505#(and (<= 134 y) (<= y 134) (or (<= 14 x) (<= x 12))), 7506#(and (<= 136 y) (or (<= x 14) (<= 16 x)) (<= y 136)), 7507#(and (<= 138 y) (or (<= 18 x) (<= x 16)) (<= y 138)), 7508#(and (<= 140 y) (<= y 140) (or (<= 20 x) (<= x 18))), 7509#(and (<= 142 y) (or (<= 22 x) (<= x 20)) (<= y 142)), 7510#(and (<= y 144) (<= 144 y) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:51:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 1326 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,291 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:51:08,291 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:51:08,291 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=2757, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:51:08,292 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 54 states. [2018-07-23 13:51:08,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:08,591 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-07-23 13:51:08,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:51:08,591 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 53 [2018-07-23 13:51:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:08,591 INFO L225 Difference]: With dead ends: 56 [2018-07-23 13:51:08,592 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:51:08,592 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=2757, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:51:08,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:51:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:51:08,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:51:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-07-23 13:51:08,628 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-07-23 13:51:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:08,628 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-07-23 13:51:08,628 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:51:08,628 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-07-23 13:51:08,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:51:08,629 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:08,629 INFO L357 BasicCegarLoop]: trace histogram [52, 1, 1] [2018-07-23 13:51:08,629 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:08,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1038125127, now seen corresponding path program 52 times [2018-07-23 13:51:08,629 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,981 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:08,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:51:08,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,982 INFO L185 omatonBuilderFactory]: Interpolants [7733#true, 7734#false, 7735#(and (or (< 0 (+ (div x 2) 41)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 7736#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 7737#(and (<= 46 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 46)), 7738#(and (<= y 48) (<= 48 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 7739#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 7740#(and (<= 52 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 52)), 7741#(and (<= 54 y) (<= y 54) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 7742#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 56) (<= 56 y)), 7743#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 7744#(and (<= 60 y) (<= y 60) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 7745#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 62) (<= 62 y)), 7746#(and (<= y 64) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 64 y)), 7747#(and (<= 66 y) (<= y 66) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 7748#(and (<= 68 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 68)), 7749#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 70 y) (<= y 70)), 7750#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 72) (<= 72 y)), 7751#(and (<= y 74) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 74 y)), 7752#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 76) (<= 76 y)), 7753#(and (<= y 78) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 78 y)), 7754#(and (<= y 80) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 80 y)), 7755#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 7756#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 84 y) (<= y 84)), 7757#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 7758#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 88) (<= 88 y)), 7759#(and (<= y 90) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 90 y)), 7760#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 92 y) (<= y 92)), 7761#(and (<= 94 y) (<= y 94) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 7762#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 7763#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 7764#(and (<= 100 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 100)), 7765#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 7766#(and (<= y 104) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 104 y)), 7767#(and (<= 106 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 106)), 7768#(and (<= 108 y) (<= y 108) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 7769#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 110 y) (<= y 110)), 7770#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 7771#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 7772#(and (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 116 y) (<= y 116)), 7773#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 118) (<= 118 y)), 7774#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 120) (<= 120 y)), 7775#(and (<= y 122) (<= 122 y) (or (<= (+ x 2) 0) (<= 0 x))), 7776#(and (<= y 124) (or (<= 2 x) (<= x 0)) (<= 124 y)), 7777#(and (<= y 126) (or (<= 4 x) (<= x 2)) (<= 126 y)), 7778#(and (<= 128 y) (or (<= x 4) (<= 6 x)) (<= y 128)), 7779#(and (<= y 130) (<= 130 y) (or (<= 8 x) (<= x 6))), 7780#(and (or (<= x 8) (<= 10 x)) (<= y 132) (<= 132 y)), 7781#(and (or (<= 12 x) (<= x 10)) (<= 134 y) (<= y 134)), 7782#(and (<= 136 y) (<= y 136) (or (<= 14 x) (<= x 12))), 7783#(and (<= 138 y) (or (<= x 14) (<= 16 x)) (<= y 138)), 7784#(and (or (<= 18 x) (<= x 16)) (<= 140 y) (<= y 140)), 7785#(and (<= 142 y) (or (<= 20 x) (<= x 18)) (<= y 142)), 7786#(and (<= y 144) (<= 144 y) (or (<= 22 x) (<= x 20))), 7787#(and (or (<= 24 x) (<= x 22)) (<= y 146) (<= 146 y))] [2018-07-23 13:51:08,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 1378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:08,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:51:08,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:51:08,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:51:08,983 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 55 states. [2018-07-23 13:51:09,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:09,294 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:51:09,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:51:09,294 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 54 [2018-07-23 13:51:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:09,294 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:51:09,295 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:51:09,295 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=2863, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:51:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:51:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:51:09,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:51:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:51:09,325 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-07-23 13:51:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:09,325 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:51:09,325 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:51:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:51:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:51:09,325 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:09,326 INFO L357 BasicCegarLoop]: trace histogram [53, 1, 1] [2018-07-23 13:51:09,326 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:09,326 INFO L82 PathProgramCache]: Analyzing trace with hash 2117107809, now seen corresponding path program 53 times [2018-07-23 13:51:09,326 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:09,639 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:09,640 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:51:09,640 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:09,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:09,641 INFO L185 omatonBuilderFactory]: Interpolants [8064#(and (<= 138 y) (or (<= 14 x) (<= x 12)) (<= y 138)), 8065#(and (<= 140 y) (<= y 140) (or (<= x 14) (<= 16 x))), 8066#(and (<= 142 y) (or (<= 18 x) (<= x 16)) (<= y 142)), 8067#(and (<= y 144) (<= 144 y) (or (<= 20 x) (<= x 18))), 8068#(and (or (<= 22 x) (<= x 20)) (<= y 146) (<= 146 y)), 8069#(and (<= 148 y) (<= y 148) (or (<= 24 x) (<= x 22))), 8014#true, 8015#false, 8016#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 42)) (<= x (* 2 (div x 2))))), 8017#(and (<= 44 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 44)), 8018#(and (<= 46 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 46)), 8019#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 8020#(and (<= y 50) (<= 50 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 8021#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 8022#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 54 y) (<= y 54)), 8023#(and (<= y 56) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 56 y)), 8024#(and (<= 58 y) (<= y 58) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 8025#(and (<= 60 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 60)), 8026#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 62) (<= 62 y)), 8027#(and (<= y 64) (<= 64 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 8028#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 66 y) (<= y 66)), 8029#(and (<= 68 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 68)), 8030#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 70 y) (<= y 70)), 8031#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 72) (<= 72 y)), 8032#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 74) (<= 74 y)), 8033#(and (<= y 76) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 76 y)), 8034#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 78) (<= 78 y)), 8035#(and (<= y 80) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 80 y)), 8036#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 82) (<= 82 y)), 8037#(and (<= 84 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 84)), 8038#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 86 y) (<= y 86)), 8039#(and (<= y 88) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 88 y)), 8040#(and (<= y 90) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 90 y)), 8041#(and (<= 92 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 92)), 8042#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 94 y) (<= y 94)), 8043#(and (<= 96 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 96)), 8044#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 8045#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 8046#(and (<= y 102) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 102 y)), 8047#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 8048#(and (<= 106 y) (<= y 106) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 8049#(and (<= 108 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 108)), 8050#(and (<= 110 y) (<= y 110) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 8051#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 112) (<= 112 y)), 8052#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 114 y) (<= y 114)), 8053#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 116 y) (<= y 116)), 8054#(and (<= y 118) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 118 y)), 8055#(and (<= y 120) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 120 y)), 8056#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 122) (<= 122 y)), 8057#(and (<= y 124) (or (<= (+ x 2) 0) (<= 0 x)) (<= 124 y)), 8058#(and (<= y 126) (<= 126 y) (or (<= 2 x) (<= x 0))), 8059#(and (<= 128 y) (or (<= 4 x) (<= x 2)) (<= y 128)), 8060#(and (or (<= x 4) (<= 6 x)) (<= y 130) (<= 130 y)), 8061#(and (<= y 132) (<= 132 y) (or (<= 8 x) (<= x 6))), 8062#(and (or (<= x 8) (<= 10 x)) (<= 134 y) (<= y 134)), 8063#(and (or (<= 12 x) (<= x 10)) (<= 136 y) (<= y 136))] [2018-07-23 13:51:09,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 1431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:09,641 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:51:09,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:51:09,642 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=2971, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:09,643 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 56 states. [2018-07-23 13:51:10,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:10,061 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-07-23 13:51:10,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:51:10,061 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 55 [2018-07-23 13:51:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:10,062 INFO L225 Difference]: With dead ends: 58 [2018-07-23 13:51:10,062 INFO L226 Difference]: Without dead ends: 57 [2018-07-23 13:51:10,063 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=2971, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:10,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-07-23 13:51:10,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-07-23 13:51:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:51:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-07-23 13:51:10,099 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-07-23 13:51:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:10,100 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-07-23 13:51:10,100 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:51:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-07-23 13:51:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:51:10,101 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:10,101 INFO L357 BasicCegarLoop]: trace histogram [54, 1, 1] [2018-07-23 13:51:10,101 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:10,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1205832583, now seen corresponding path program 54 times [2018-07-23 13:51:10,101 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:10,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:10,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:10,471 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:10,471 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:51:10,471 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:10,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:10,472 INFO L185 omatonBuilderFactory]: Interpolants [8320#(and (<= y 78) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 78 y)), 8321#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 80) (<= 80 y)), 8322#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 82) (<= 82 y)), 8323#(and (<= 84 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 84)), 8324#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 8325#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 88) (<= 88 y)), 8326#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 8327#(and (<= 92 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 92)), 8328#(and (<= 94 y) (<= y 94) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 8329#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 96 y) (<= y 96)), 8330#(and (<= y 98) (<= 98 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 8331#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 8332#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 8333#(and (<= y 104) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 104 y)), 8334#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 8335#(and (<= 108 y) (<= y 108) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 8336#(and (<= 110 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 110)), 8337#(and (<= y 112) (<= 112 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 8338#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 114 y) (<= y 114)), 8339#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 116 y) (<= y 116)), 8340#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 118) (<= 118 y)), 8341#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 8342#(and (<= y 122) (<= 122 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 8343#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 124) (<= 124 y)), 8344#(and (<= y 126) (or (<= (+ x 2) 0) (<= 0 x)) (<= 126 y)), 8345#(and (<= 128 y) (<= y 128) (or (<= 2 x) (<= x 0))), 8346#(and (<= y 130) (<= 130 y) (or (<= 4 x) (<= x 2))), 8347#(and (or (<= x 4) (<= 6 x)) (<= y 132) (<= 132 y)), 8348#(and (<= 134 y) (or (<= 8 x) (<= x 6)) (<= y 134)), 8349#(and (<= 136 y) (or (<= x 8) (<= 10 x)) (<= y 136)), 8350#(and (or (<= 12 x) (<= x 10)) (<= 138 y) (<= y 138)), 8351#(and (<= 140 y) (<= y 140) (or (<= 14 x) (<= x 12))), 8352#(and (<= 142 y) (<= y 142) (or (<= x 14) (<= 16 x))), 8353#(and (<= y 144) (<= 144 y) (or (<= 18 x) (<= x 16))), 8354#(and (or (<= 20 x) (<= x 18)) (<= y 146) (<= 146 y)), 8355#(and (<= 148 y) (<= y 148) (or (<= 22 x) (<= x 20))), 8356#(and (or (<= 24 x) (<= x 22)) (<= y 150) (<= 150 y)), 8300#true, 8301#false, 8302#(and (or (< 0 (+ (div x 2) 43)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 8303#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 8304#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 46 y) (<= y 46)), 8305#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 8306#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 8307#(and (<= 52 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 52)), 8308#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 8309#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 56) (<= 56 y)), 8310#(and (<= 58 y) (<= y 58) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 8311#(and (<= 60 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 60)), 8312#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 62) (<= 62 y)), 8313#(and (<= y 64) (<= 64 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 8314#(and (<= 66 y) (<= y 66) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 8315#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 68 y) (<= y 68)), 8316#(and (<= 70 y) (<= y 70) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 8317#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 72) (<= 72 y)), 8318#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 74) (<= 74 y)), 8319#(and (<= y 76) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 76 y))] [2018-07-23 13:51:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 0 proven. 1485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:10,472 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:51:10,472 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:51:10,473 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:10,473 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 57 states. [2018-07-23 13:51:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:10,792 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:51:10,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:51:10,792 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 56 [2018-07-23 13:51:10,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:10,793 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:51:10,793 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:51:10,793 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=3081, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:51:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:51:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:51:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:51:10,825 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-07-23 13:51:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:10,826 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:51:10,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:51:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:51:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:51:10,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:10,827 INFO L357 BasicCegarLoop]: trace histogram [55, 1, 1] [2018-07-23 13:51:10,827 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1273895647, now seen corresponding path program 55 times [2018-07-23 13:51:10,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:11,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:11,151 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:11,151 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:51:11,151 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:11,152 INFO L185 omatonBuilderFactory]: Interpolants [8591#true, 8592#false, 8593#(and (or (< 0 (+ (div x 2) 44)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 8594#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 8595#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 8596#(and (<= y 48) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 48 y)), 8597#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 8598#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 8599#(and (<= 54 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 54)), 8600#(and (<= y 56) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 56 y)), 8601#(and (<= 58 y) (<= y 58) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 8602#(and (<= 60 y) (<= y 60) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 8603#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 62) (<= 62 y)), 8604#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 8605#(and (<= 66 y) (<= y 66) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 8606#(and (<= 68 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 68)), 8607#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 70 y) (<= y 70)), 8608#(and (<= y 72) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 72 y)), 8609#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 74) (<= 74 y)), 8610#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 76) (<= 76 y)), 8611#(and (<= y 78) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 78 y)), 8612#(and (<= y 80) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 80 y)), 8613#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 82) (<= 82 y)), 8614#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 84 y) (<= y 84)), 8615#(and (<= 86 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 86)), 8616#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 8617#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 90) (<= 90 y)), 8618#(and (<= 92 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 92)), 8619#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 8620#(and (<= 96 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 96)), 8621#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 98) (<= 98 y)), 8622#(and (<= 100 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 100)), 8623#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 8624#(and (<= y 104) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 104 y)), 8625#(and (<= 106 y) (<= y 106) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 8626#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 8627#(and (<= 110 y) (<= y 110) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 8628#(and (<= y 112) (<= 112 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 8629#(and (<= 114 y) (<= y 114) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 8630#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 116 y) (<= y 116)), 8631#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 118) (<= 118 y)), 8632#(and (<= y 120) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 120 y)), 8633#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 8634#(and (<= y 124) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 124 y)), 8635#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 126) (<= 126 y)), 8636#(and (<= 128 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 128)), 8637#(and (<= y 130) (<= 130 y) (or (<= 2 x) (<= x 0))), 8638#(and (or (<= 4 x) (<= x 2)) (<= y 132) (<= 132 y)), 8639#(and (or (<= x 4) (<= 6 x)) (<= 134 y) (<= y 134)), 8640#(and (<= 136 y) (or (<= 8 x) (<= x 6)) (<= y 136)), 8641#(and (<= 138 y) (or (<= x 8) (<= 10 x)) (<= y 138)), 8642#(and (or (<= 12 x) (<= x 10)) (<= 140 y) (<= y 140)), 8643#(and (<= 142 y) (<= y 142) (or (<= 14 x) (<= x 12))), 8644#(and (<= y 144) (<= 144 y) (or (<= x 14) (<= 16 x))), 8645#(and (or (<= 18 x) (<= x 16)) (<= y 146) (<= 146 y)), 8646#(and (<= 148 y) (<= y 148) (or (<= 20 x) (<= x 18))), 8647#(and (or (<= 22 x) (<= x 20)) (<= y 150) (<= 150 y)), 8648#(and (or (<= 24 x) (<= x 22)) (<= y 152) (<= 152 y))] [2018-07-23 13:51:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 1540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:11,152 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:51:11,153 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:51:11,153 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=3193, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:11,153 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 58 states. [2018-07-23 13:51:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:11,684 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-07-23 13:51:11,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:51:11,684 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 57 [2018-07-23 13:51:11,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:11,685 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:51:11,685 INFO L226 Difference]: Without dead ends: 59 [2018-07-23 13:51:11,686 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=3193, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-07-23 13:51:11,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-07-23 13:51:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-23 13:51:11,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-07-23 13:51:11,730 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-07-23 13:51:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:11,730 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-07-23 13:51:11,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:51:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-07-23 13:51:11,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 13:51:11,731 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:11,731 INFO L357 BasicCegarLoop]: trace histogram [56, 1, 1] [2018-07-23 13:51:11,732 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:11,732 INFO L82 PathProgramCache]: Analyzing trace with hash -836059449, now seen corresponding path program 56 times [2018-07-23 13:51:11,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,202 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:12,203 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:51:12,203 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,203 INFO L185 omatonBuilderFactory]: Interpolants [8887#true, 8888#false, 8889#(and (<= y 42) (or (< 0 (+ (div x 2) 45)) (<= x (* 2 (div x 2)))) (<= 42 y)), 8890#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 8891#(and (<= 46 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 46)), 8892#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 8893#(and (<= y 50) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 50 y)), 8894#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 8895#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 8896#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 56) (<= 56 y)), 8897#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 8898#(and (<= 60 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 60)), 8899#(and (<= y 62) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 62 y)), 8900#(and (<= y 64) (<= 64 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 8901#(and (<= 66 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 66)), 8902#(and (<= 68 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 68)), 8903#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 70 y) (<= y 70)), 8904#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 72) (<= 72 y)), 8905#(and (<= y 74) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 74 y)), 8906#(and (<= y 76) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 76 y)), 8907#(and (<= y 78) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 78 y)), 8908#(and (<= y 80) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 80 y)), 8909#(and (<= y 82) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 82 y)), 8910#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 84 y) (<= y 84)), 8911#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 86 y) (<= y 86)), 8912#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 88) (<= 88 y)), 8913#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 8914#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 92 y) (<= y 92)), 8915#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 8916#(and (<= 96 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 96)), 8917#(and (<= y 98) (<= 98 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 8918#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 100 y) (<= y 100)), 8919#(and (<= y 102) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 102 y)), 8920#(and (<= y 104) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 104 y)), 8921#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 8922#(and (<= 108 y) (<= y 108) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 8923#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 8924#(and (<= y 112) (<= 112 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 8925#(and (<= 114 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 114)), 8926#(and (<= 116 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= y 116)), 8927#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 118) (<= 118 y)), 8928#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 120) (<= 120 y)), 8929#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 8930#(and (<= y 124) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 124 y)), 8931#(and (<= y 126) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 126 y)), 8932#(and (<= 128 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 128)), 8933#(and (<= y 130) (<= 130 y) (or (<= (+ x 2) 0) (<= 0 x))), 8934#(and (<= y 132) (<= 132 y) (or (<= 2 x) (<= x 0))), 8935#(and (or (<= 4 x) (<= x 2)) (<= 134 y) (<= y 134)), 8936#(and (or (<= x 4) (<= 6 x)) (<= 136 y) (<= y 136)), 8937#(and (<= 138 y) (or (<= 8 x) (<= x 6)) (<= y 138)), 8938#(and (<= 140 y) (<= y 140) (or (<= x 8) (<= 10 x))), 8939#(and (<= 142 y) (or (<= 12 x) (<= x 10)) (<= y 142)), 8940#(and (<= y 144) (<= 144 y) (or (<= 14 x) (<= x 12))), 8941#(and (<= y 146) (<= 146 y) (or (<= x 14) (<= 16 x))), 8942#(and (<= 148 y) (<= y 148) (or (<= 18 x) (<= x 16))), 8943#(and (<= y 150) (or (<= 20 x) (<= x 18)) (<= 150 y)), 8944#(and (or (<= 22 x) (<= x 20)) (<= y 152) (<= 152 y)), 8945#(and (or (<= 24 x) (<= x 22)) (<= y 154) (<= 154 y))] [2018-07-23 13:51:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,204 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:51:12,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:51:12,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=3307, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:51:12,204 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 59 states. [2018-07-23 13:51:12,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:12,552 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:51:12,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:51:12,553 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 58 [2018-07-23 13:51:12,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:12,553 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:51:12,554 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:51:12,554 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=3307, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:51:12,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:51:12,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:51:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:51:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:51:12,586 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-07-23 13:51:12,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:12,586 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:51:12,586 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:51:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:51:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:51:12,586 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:12,587 INFO L357 BasicCegarLoop]: trace histogram [57, 1, 1] [2018-07-23 13:51:12,587 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:12,587 INFO L82 PathProgramCache]: Analyzing trace with hash -148039199, now seen corresponding path program 57 times [2018-07-23 13:51:12,587 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,936 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:12,936 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:51:12,936 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,937 INFO L185 omatonBuilderFactory]: Interpolants [9216#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 94 y) (<= y 94)), 9217#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 9218#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 9219#(and (<= 100 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 100)), 9220#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 102) (<= 102 y)), 9221#(and (<= y 104) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 104 y)), 9222#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 9223#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 9224#(and (<= 110 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 110)), 9225#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 9226#(and (<= 114 y) (<= y 114) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 9227#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 116 y) (<= y 116)), 9228#(and (<= y 118) (<= 118 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 9229#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 120) (<= 120 y)), 9230#(and (<= y 122) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 122 y)), 9231#(and (<= y 124) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 124 y)), 9232#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 9233#(and (<= 128 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 128)), 9234#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 130) (<= 130 y)), 9235#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 132) (<= 132 y)), 9236#(and (<= 134 y) (<= y 134) (or (<= 2 x) (<= x 0))), 9237#(and (<= 136 y) (or (<= 4 x) (<= x 2)) (<= y 136)), 9238#(and (or (<= x 4) (<= 6 x)) (<= 138 y) (<= y 138)), 9239#(and (<= 140 y) (<= y 140) (or (<= 8 x) (<= x 6))), 9240#(and (<= 142 y) (or (<= x 8) (<= 10 x)) (<= y 142)), 9241#(and (or (<= 12 x) (<= x 10)) (<= y 144) (<= 144 y)), 9242#(and (<= y 146) (<= 146 y) (or (<= 14 x) (<= x 12))), 9243#(and (<= 148 y) (<= y 148) (or (<= x 14) (<= 16 x))), 9244#(and (or (<= 18 x) (<= x 16)) (<= y 150) (<= 150 y)), 9245#(and (<= y 152) (or (<= 20 x) (<= x 18)) (<= 152 y)), 9246#(and (or (<= 22 x) (<= x 20)) (<= y 154) (<= 154 y)), 9247#(and (or (<= 24 x) (<= x 22)) (<= 156 y) (<= y 156)), 9188#true, 9189#false, 9190#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 46)) (<= x (* 2 (div x 2))))), 9191#(and (<= 44 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 44)), 9192#(and (<= 46 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 46)), 9193#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 9194#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 9195#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 52 y) (<= y 52)), 9196#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 9197#(and (<= y 56) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 56 y)), 9198#(and (<= 58 y) (<= y 58) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 9199#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 9200#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 62) (<= 62 y)), 9201#(and (<= y 64) (<= 64 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 9202#(and (<= 66 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 66)), 9203#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 68 y) (<= y 68)), 9204#(and (<= 70 y) (<= y 70) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 9205#(and (<= y 72) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 72 y)), 9206#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 74) (<= 74 y)), 9207#(and (<= y 76) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 76 y)), 9208#(and (<= y 78) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 78 y)), 9209#(and (<= y 80) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 80 y)), 9210#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 82) (<= 82 y)), 9211#(and (<= 84 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 84)), 9212#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 86 y) (<= y 86)), 9213#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 88) (<= 88 y)), 9214#(and (<= y 90) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 90 y)), 9215#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)))] [2018-07-23 13:51:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1653 backedges. 0 proven. 1653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:12,937 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:51:12,937 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:51:12,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=3423, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:51:12,938 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 60 states. [2018-07-23 13:51:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:13,320 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-07-23 13:51:13,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:51:13,320 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 59 [2018-07-23 13:51:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:13,321 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:51:13,321 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:51:13,321 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=3423, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:51:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:51:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:51:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:51:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-07-23 13:51:13,354 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-07-23 13:51:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:13,354 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-07-23 13:51:13,354 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:51:13,354 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-07-23 13:51:13,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:51:13,354 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:13,354 INFO L357 BasicCegarLoop]: trace histogram [58, 1, 1] [2018-07-23 13:51:13,355 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:13,355 INFO L82 PathProgramCache]: Analyzing trace with hash -294247929, now seen corresponding path program 58 times [2018-07-23 13:51:13,355 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:13,758 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:13,759 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:51:13,759 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:13,759 INFO L185 omatonBuilderFactory]: Interpolants [9494#true, 9495#false, 9496#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 47)) (<= x (* 2 (div x 2))))), 9497#(and (<= 44 y) (<= y 44) (or (<= (+ x 92) 0) (<= 0 (+ x 90)))), 9498#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 46 y) (<= y 46)), 9499#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 9500#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 9501#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 9502#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 54 y) (<= y 54)), 9503#(and (<= y 56) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 56 y)), 9504#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 9505#(and (<= 60 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 60)), 9506#(and (<= y 62) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 62 y)), 9507#(and (<= y 64) (<= 64 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 9508#(and (<= 66 y) (<= y 66) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 9509#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 68 y) (<= y 68)), 9510#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 70 y) (<= y 70)), 9511#(and (<= y 72) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 72 y)), 9512#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 74) (<= 74 y)), 9513#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 76) (<= 76 y)), 9514#(and (<= y 78) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 78 y)), 9515#(and (<= y 80) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 80 y)), 9516#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 82) (<= 82 y)), 9517#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 84 y) (<= y 84)), 9518#(and (<= 86 y) (<= y 86) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 9519#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 88) (<= 88 y)), 9520#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 90) (<= 90 y)), 9521#(and (<= 92 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 92)), 9522#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 9523#(and (<= 96 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 96)), 9524#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 9525#(and (<= 100 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 100)), 9526#(and (<= y 102) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 102 y)), 9527#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 104) (<= 104 y)), 9528#(and (<= 106 y) (<= y 106) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 9529#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 9530#(and (<= 110 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 110)), 9531#(and (<= y 112) (<= 112 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 9532#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 9533#(and (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 116 y) (<= y 116)), 9534#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 118) (<= 118 y)), 9535#(and (<= y 120) (<= 120 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 9536#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 122) (<= 122 y)), 9537#(and (<= y 124) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 124 y)), 9538#(and (<= y 126) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 126 y)), 9539#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 9540#(and (<= y 130) (<= 130 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 9541#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 132) (<= 132 y)), 9542#(and (<= 134 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 134)), 9543#(and (<= 136 y) (<= y 136) (or (<= 2 x) (<= x 0))), 9544#(and (<= 138 y) (or (<= 4 x) (<= x 2)) (<= y 138)), 9545#(and (or (<= x 4) (<= 6 x)) (<= 140 y) (<= y 140)), 9546#(and (<= 142 y) (<= y 142) (or (<= 8 x) (<= x 6))), 9547#(and (<= y 144) (<= 144 y) (or (<= x 8) (<= 10 x))), 9548#(and (or (<= 12 x) (<= x 10)) (<= y 146) (<= 146 y)), 9549#(and (<= 148 y) (<= y 148) (or (<= 14 x) (<= x 12))), 9550#(and (<= y 150) (<= 150 y) (or (<= x 14) (<= 16 x))), 9551#(and (or (<= 18 x) (<= x 16)) (<= y 152) (<= 152 y)), 9552#(and (<= y 154) (or (<= 20 x) (<= x 18)) (<= 154 y)), 9553#(and (or (<= 22 x) (<= x 20)) (<= 156 y) (<= y 156)), 9554#(and (or (<= 24 x) (<= x 22)) (<= y 158) (<= 158 y))] [2018-07-23 13:51:13,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:13,760 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:51:13,760 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:51:13,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=3541, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:51:13,761 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 61 states. [2018-07-23 13:51:14,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:14,190 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:51:14,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:51:14,191 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 60 [2018-07-23 13:51:14,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:14,191 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:51:14,191 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:51:14,192 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=3541, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:51:14,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:51:14,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:51:14,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:51:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:51:14,226 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-07-23 13:51:14,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:14,226 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:51:14,226 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:51:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:51:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:51:14,227 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:14,227 INFO L357 BasicCegarLoop]: trace histogram [59, 1, 1] [2018-07-23 13:51:14,227 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:14,227 INFO L82 PathProgramCache]: Analyzing trace with hash -531751263, now seen corresponding path program 59 times [2018-07-23 13:51:14,227 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:14,623 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:14,623 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:51:14,623 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:14,624 INFO L185 omatonBuilderFactory]: Interpolants [9856#(and (<= 140 y) (<= y 140) (or (<= 4 x) (<= x 2))), 9857#(and (<= 142 y) (or (<= x 4) (<= 6 x)) (<= y 142)), 9858#(and (<= y 144) (<= 144 y) (or (<= 8 x) (<= x 6))), 9859#(and (or (<= x 8) (<= 10 x)) (<= y 146) (<= 146 y)), 9860#(and (or (<= 12 x) (<= x 10)) (<= 148 y) (<= y 148)), 9861#(and (<= y 150) (<= 150 y) (or (<= 14 x) (<= x 12))), 9862#(and (<= y 152) (<= 152 y) (or (<= x 14) (<= 16 x))), 9863#(and (or (<= 18 x) (<= x 16)) (<= y 154) (<= 154 y)), 9864#(and (or (<= 20 x) (<= x 18)) (<= 156 y) (<= y 156)), 9865#(and (or (<= 22 x) (<= x 20)) (<= y 158) (<= 158 y)), 9866#(and (or (<= 24 x) (<= x 22)) (<= 160 y) (<= y 160)), 9805#true, 9806#false, 9807#(and (<= y 42) (or (< 0 (+ (div x 2) 48)) (<= x (* 2 (div x 2)))) (<= 42 y)), 9808#(and (<= 44 y) (<= y 44) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 9809#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 46 y) (<= y 46)), 9810#(and (<= y 48) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 48 y)), 9811#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 9812#(and (<= 52 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 52)), 9813#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 9814#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 56) (<= 56 y)), 9815#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 9816#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 9817#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 62) (<= 62 y)), 9818#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 9819#(and (<= 66 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 66)), 9820#(and (<= 68 y) (<= y 68) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 9821#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 70 y) (<= y 70)), 9822#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 72) (<= 72 y)), 9823#(and (<= y 74) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 74 y)), 9824#(and (<= y 76) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 76 y)), 9825#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 78) (<= 78 y)), 9826#(and (<= y 80) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 80 y)), 9827#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 82) (<= 82 y)), 9828#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 84 y) (<= y 84)), 9829#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 86 y) (<= y 86)), 9830#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 88) (<= 88 y)), 9831#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 90) (<= 90 y)), 9832#(and (<= 92 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 92)), 9833#(and (<= 94 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 94)), 9834#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 9835#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 98) (<= 98 y)), 9836#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 9837#(and (<= y 102) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 102 y)), 9838#(and (<= y 104) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 104 y)), 9839#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 106 y) (<= y 106)), 9840#(and (<= 108 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 108)), 9841#(and (<= 110 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 110)), 9842#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 9843#(and (<= 114 y) (<= y 114) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 9844#(and (<= 116 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 116)), 9845#(and (<= y 118) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 118 y)), 9846#(and (<= y 120) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 120 y)), 9847#(and (<= y 122) (<= 122 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 9848#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 124) (<= 124 y)), 9849#(and (<= y 126) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 126 y)), 9850#(and (<= 128 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 128)), 9851#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 9852#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 132) (<= 132 y)), 9853#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 134 y) (<= y 134)), 9854#(and (<= 136 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 136)), 9855#(and (<= 138 y) (or (<= 2 x) (<= x 0)) (<= y 138))] [2018-07-23 13:51:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:14,625 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:51:14,625 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:51:14,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=3661, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:14,625 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 62 states. [2018-07-23 13:51:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:15,025 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-07-23 13:51:15,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:51:15,026 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 61 [2018-07-23 13:51:15,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:15,026 INFO L225 Difference]: With dead ends: 64 [2018-07-23 13:51:15,027 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 13:51:15,027 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=3661, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 13:51:15,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-23 13:51:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:51:15,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-07-23 13:51:15,066 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-07-23 13:51:15,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:15,066 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-07-23 13:51:15,066 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:51:15,066 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-07-23 13:51:15,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:51:15,067 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:15,067 INFO L357 BasicCegarLoop]: trace histogram [60, 1, 1] [2018-07-23 13:51:15,067 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:15,067 INFO L82 PathProgramCache]: Analyzing trace with hash 695579975, now seen corresponding path program 60 times [2018-07-23 13:51:15,067 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:15,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:15,516 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:15,516 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:51:15,516 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:15,517 INFO L185 omatonBuilderFactory]: Interpolants [10121#true, 10122#false, 10123#(and (or (< 0 (+ (div x 2) 49)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 10124#(and (<= 44 y) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 44)), 10125#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 46 y) (<= y 46)), 10126#(and (<= y 48) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 48 y)), 10127#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 50) (<= 50 y)), 10128#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 10129#(and (<= 54 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 54)), 10130#(and (<= y 56) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= 56 y)), 10131#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 58 y) (<= y 58)), 10132#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 10133#(and (<= y 62) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 62 y)), 10134#(and (<= y 64) (<= 64 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 10135#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 10136#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 68 y) (<= y 68)), 10137#(and (<= 70 y) (<= y 70) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 10138#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 72) (<= 72 y)), 10139#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 74) (<= 74 y)), 10140#(and (<= y 76) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 76 y)), 10141#(and (<= y 78) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 78 y)), 10142#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 80) (<= 80 y)), 10143#(and (<= y 82) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 82 y)), 10144#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 84 y) (<= y 84)), 10145#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 86 y) (<= y 86)), 10146#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 88) (<= 88 y)), 10147#(and (<= y 90) (<= 90 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 10148#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 92 y) (<= y 92)), 10149#(and (<= 94 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 94)), 10150#(and (<= 96 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 96)), 10151#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 10152#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 100 y) (<= y 100)), 10153#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 10154#(and (<= y 104) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 104 y)), 10155#(and (<= 106 y) (<= y 106) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 10156#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 108 y) (<= y 108)), 10157#(and (<= 110 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 110)), 10158#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 10159#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 10160#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 116 y) (<= y 116)), 10161#(and (<= y 118) (<= 118 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 10162#(and (<= y 120) (<= 120 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 10163#(and (<= y 122) (<= 122 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 10164#(and (<= y 124) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 124 y)), 10165#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 126) (<= 126 y)), 10166#(and (<= 128 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 128)), 10167#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 10168#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 10169#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 134 y) (<= y 134)), 10170#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 136 y) (<= y 136)), 10171#(and (<= 138 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 138)), 10172#(and (<= 140 y) (<= y 140) (or (<= 2 x) (<= x 0))), 10173#(and (<= 142 y) (or (<= 4 x) (<= x 2)) (<= y 142)), 10174#(and (or (<= x 4) (<= 6 x)) (<= y 144) (<= 144 y)), 10175#(and (<= y 146) (<= 146 y) (or (<= 8 x) (<= x 6))), 10176#(and (<= 148 y) (<= y 148) (or (<= x 8) (<= 10 x))), 10177#(and (or (<= 12 x) (<= x 10)) (<= y 150) (<= 150 y)), 10178#(and (<= y 152) (<= 152 y) (or (<= 14 x) (<= x 12))), 10179#(and (<= y 154) (<= 154 y) (or (<= x 14) (<= 16 x))), 10180#(and (or (<= 18 x) (<= x 16)) (<= 156 y) (<= y 156)), 10181#(and (or (<= 20 x) (<= x 18)) (<= y 158) (<= 158 y)), 10182#(and (or (<= 22 x) (<= x 20)) (<= 160 y) (<= y 160)), 10183#(and (<= y 162) (or (<= 24 x) (<= x 22)) (<= 162 y))] [2018-07-23 13:51:15,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1830 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:15,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:51:15,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:51:15,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:51:15,518 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 63 states. [2018-07-23 13:51:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:16,015 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:51:16,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:51:16,016 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 62 [2018-07-23 13:51:16,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:16,017 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:51:16,017 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:51:16,017 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=3783, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:51:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:51:16,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:51:16,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:51:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:51:16,073 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-07-23 13:51:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:16,074 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:51:16,074 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:51:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:51:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:51:16,077 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:16,078 INFO L357 BasicCegarLoop]: trace histogram [61, 1, 1] [2018-07-23 13:51:16,078 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:16,078 INFO L82 PathProgramCache]: Analyzing trace with hash 88142689, now seen corresponding path program 61 times [2018-07-23 13:51:16,079 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:16,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:16,515 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:16,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:51:16,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:16,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:16,516 INFO L185 omatonBuilderFactory]: Interpolants [10496#(and (or (<= x 4) (<= 6 x)) (<= y 146) (<= 146 y)), 10497#(and (<= 148 y) (<= y 148) (or (<= 8 x) (<= x 6))), 10498#(and (or (<= x 8) (<= 10 x)) (<= y 150) (<= 150 y)), 10499#(and (or (<= 12 x) (<= x 10)) (<= y 152) (<= 152 y)), 10500#(and (<= y 154) (<= 154 y) (or (<= 14 x) (<= x 12))), 10501#(and (<= 156 y) (or (<= x 14) (<= 16 x)) (<= y 156)), 10502#(and (or (<= 18 x) (<= x 16)) (<= y 158) (<= 158 y)), 10503#(and (<= 160 y) (or (<= 20 x) (<= x 18)) (<= y 160)), 10504#(and (<= y 162) (or (<= 22 x) (<= x 20)) (<= 162 y)), 10505#(and (or (<= 24 x) (<= x 22)) (<= 164 y) (<= y 164)), 10442#true, 10443#false, 10444#(and (<= y 42) (or (< 0 (+ (div x 2) 50)) (<= x (* 2 (div x 2)))) (<= 42 y)), 10445#(and (<= 44 y) (<= y 44) (or (<= (+ x 98) 0) (<= 0 (+ x 96)))), 10446#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 46 y) (<= y 46)), 10447#(and (<= y 48) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 48 y)), 10448#(and (<= y 50) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 50 y)), 10449#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 52 y) (<= y 52)), 10450#(and (<= 54 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 54)), 10451#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 56) (<= 56 y)), 10452#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 10453#(and (<= 60 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 60)), 10454#(and (<= y 62) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 62 y)), 10455#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 10456#(and (<= 66 y) (<= y 66) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 10457#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 10458#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 70 y) (<= y 70)), 10459#(and (<= y 72) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 72 y)), 10460#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 74) (<= 74 y)), 10461#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 76) (<= 76 y)), 10462#(and (<= y 78) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 78 y)), 10463#(and (<= y 80) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 80 y)), 10464#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 82) (<= 82 y)), 10465#(and (<= 84 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 84)), 10466#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 86 y) (<= y 86)), 10467#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 88) (<= 88 y)), 10468#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 90) (<= 90 y)), 10469#(and (<= 92 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 92)), 10470#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 94 y) (<= y 94)), 10471#(and (<= 96 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 96)), 10472#(and (<= y 98) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 98 y)), 10473#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 10474#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 102) (<= 102 y)), 10475#(and (<= y 104) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 104 y)), 10476#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 10477#(and (<= 108 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 108)), 10478#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 110 y) (<= y 110)), 10479#(and (<= y 112) (<= 112 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 10480#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 10481#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 116 y) (<= y 116)), 10482#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 118) (<= 118 y)), 10483#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 10484#(and (<= y 122) (<= 122 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 10485#(and (<= y 124) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 124 y)), 10486#(and (<= y 126) (<= 126 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 10487#(and (<= 128 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 128)), 10488#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 10489#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 132) (<= 132 y)), 10490#(and (<= 134 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 134)), 10491#(and (<= 136 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 136)), 10492#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 138 y) (<= y 138)), 10493#(and (<= 140 y) (<= y 140) (or (<= (+ x 2) 0) (<= 0 x))), 10494#(and (<= 142 y) (<= y 142) (or (<= 2 x) (<= x 0))), 10495#(and (<= y 144) (<= 144 y) (or (<= 4 x) (<= x 2)))] [2018-07-23 13:51:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1891 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:16,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:51:16,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:51:16,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=3907, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:16,517 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 64 states. [2018-07-23 13:51:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:16,929 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-07-23 13:51:16,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:51:16,929 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 63 [2018-07-23 13:51:16,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:16,930 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:51:16,930 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 13:51:16,930 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=3907, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:16,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 13:51:16,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-07-23 13:51:16,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-07-23 13:51:16,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-07-23 13:51:16,969 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-07-23 13:51:16,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:16,969 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-07-23 13:51:16,969 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:51:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-07-23 13:51:16,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 13:51:16,970 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:16,970 INFO L357 BasicCegarLoop]: trace histogram [62, 1, 1] [2018-07-23 13:51:16,970 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:16,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1562543993, now seen corresponding path program 62 times [2018-07-23 13:51:16,971 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:17,586 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:17,586 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:51:17,587 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:17,590 INFO L185 omatonBuilderFactory]: Interpolants [10768#true, 10769#false, 10770#(and (or (< 0 (+ (div x 2) 51)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 10771#(and (<= 44 y) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 44)), 10772#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 46 y) (<= y 46)), 10773#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 48) (<= 48 y)), 10774#(and (<= y 50) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 50 y)), 10775#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 52 y) (<= y 52)), 10776#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 54 y) (<= y 54)), 10777#(and (<= y 56) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 56 y)), 10778#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 10779#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 10780#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 62) (<= 62 y)), 10781#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 10782#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 10783#(and (<= 68 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 68)), 10784#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 10785#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 72) (<= 72 y)), 10786#(and (<= y 74) (<= 74 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 10787#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 76) (<= 76 y)), 10788#(and (<= y 78) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 78 y)), 10789#(and (<= y 80) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 80 y)), 10790#(and (<= y 82) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 82 y)), 10791#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 84 y) (<= y 84)), 10792#(and (<= 86 y) (<= y 86) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 10793#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 88) (<= 88 y)), 10794#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 90) (<= 90 y)), 10795#(and (<= 92 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 92)), 10796#(and (<= 94 y) (<= y 94) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 10797#(and (<= 96 y) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 96)), 10798#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 98) (<= 98 y)), 10799#(and (<= 100 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 100)), 10800#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 10801#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 104) (<= 104 y)), 10802#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 10803#(and (<= 108 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 108)), 10804#(and (<= 110 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 110)), 10805#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 112) (<= 112 y)), 10806#(and (<= 114 y) (<= y 114) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 10807#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 116 y) (<= y 116)), 10808#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 118) (<= 118 y)), 10809#(and (<= y 120) (<= 120 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 10810#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 10811#(and (<= y 124) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 124 y)), 10812#(and (<= y 126) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 126 y)), 10813#(and (<= 128 y) (<= y 128) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 10814#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 130) (<= 130 y)), 10815#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 132) (<= 132 y)), 10816#(and (<= 134 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 134)), 10817#(and (<= 136 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 136)), 10818#(and (<= 138 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 138)), 10819#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 140 y) (<= y 140)), 10820#(and (<= 142 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 142)), 10821#(and (<= y 144) (<= 144 y) (or (<= 2 x) (<= x 0))), 10822#(and (or (<= 4 x) (<= x 2)) (<= y 146) (<= 146 y)), 10823#(and (or (<= x 4) (<= 6 x)) (<= 148 y) (<= y 148)), 10824#(and (<= y 150) (<= 150 y) (or (<= 8 x) (<= x 6))), 10825#(and (<= y 152) (or (<= x 8) (<= 10 x)) (<= 152 y)), 10826#(and (or (<= 12 x) (<= x 10)) (<= y 154) (<= 154 y)), 10827#(and (<= 156 y) (<= y 156) (or (<= 14 x) (<= x 12))), 10828#(and (<= y 158) (<= 158 y) (or (<= x 14) (<= 16 x))), 10829#(and (or (<= 18 x) (<= x 16)) (<= 160 y) (<= y 160)), 10830#(and (<= y 162) (<= 162 y) (or (<= 20 x) (<= x 18))), 10831#(and (or (<= 22 x) (<= x 20)) (<= 164 y) (<= y 164)), 10832#(and (<= y 166) (or (<= 24 x) (<= x 22)) (<= 166 y))] [2018-07-23 13:51:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1953 backedges. 0 proven. 1953 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:17,591 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:51:17,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:51:17,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=4033, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:51:17,597 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 65 states. [2018-07-23 13:51:18,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:18,104 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:51:18,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:51:18,105 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 64 [2018-07-23 13:51:18,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:18,105 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:51:18,105 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:51:18,106 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=127, Invalid=4033, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:51:18,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:51:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:51:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:51:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:51:18,147 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-07-23 13:51:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:18,147 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:51:18,147 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:51:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:51:18,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:51:18,148 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:18,148 INFO L357 BasicCegarLoop]: trace histogram [63, 1, 1] [2018-07-23 13:51:18,149 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:18,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1194223583, now seen corresponding path program 63 times [2018-07-23 13:51:18,149 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:18,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:18,571 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:18,572 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:51:18,572 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:18,573 INFO L185 omatonBuilderFactory]: Interpolants [11136#(and (<= y 112) (<= 112 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 11137#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 114 y) (<= y 114)), 11138#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 116 y) (<= y 116)), 11139#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 118) (<= 118 y)), 11140#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 11141#(and (<= y 122) (<= 122 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 11142#(and (<= y 124) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 124 y)), 11143#(and (<= y 126) (<= 126 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 11144#(and (<= 128 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 128)), 11145#(and (<= y 130) (<= 130 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 11146#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 132) (<= 132 y)), 11147#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 134 y) (<= y 134)), 11148#(and (<= 136 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 136)), 11149#(and (<= 138 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 138)), 11150#(and (<= 140 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 140)), 11151#(and (<= 142 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 142)), 11152#(and (<= y 144) (<= 144 y) (or (<= (+ x 2) 0) (<= 0 x))), 11153#(and (<= y 146) (<= 146 y) (or (<= 2 x) (<= x 0))), 11154#(and (<= 148 y) (<= y 148) (or (<= 4 x) (<= x 2))), 11155#(and (or (<= x 4) (<= 6 x)) (<= y 150) (<= 150 y)), 11156#(and (<= y 152) (<= 152 y) (or (<= 8 x) (<= x 6))), 11157#(and (<= y 154) (or (<= x 8) (<= 10 x)) (<= 154 y)), 11158#(and (or (<= 12 x) (<= x 10)) (<= 156 y) (<= y 156)), 11159#(and (<= y 158) (<= 158 y) (or (<= 14 x) (<= x 12))), 11160#(and (<= 160 y) (<= y 160) (or (<= x 14) (<= 16 x))), 11161#(and (<= y 162) (or (<= 18 x) (<= x 16)) (<= 162 y)), 11162#(and (<= 164 y) (<= y 164) (or (<= 20 x) (<= x 18))), 11163#(and (<= y 166) (or (<= 22 x) (<= x 20)) (<= 166 y)), 11164#(and (or (<= 24 x) (<= x 22)) (<= y 168) (<= 168 y)), 11099#true, 11100#false, 11101#(and (<= y 42) (or (< 0 (+ (div x 2) 52)) (<= x (* 2 (div x 2)))) (<= 42 y)), 11102#(and (<= 44 y) (<= y 44) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 11103#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 46 y) (<= y 46)), 11104#(and (<= y 48) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 48 y)), 11105#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 50) (<= 50 y)), 11106#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 52 y) (<= y 52)), 11107#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 54 y) (<= y 54)), 11108#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 56) (<= 56 y)), 11109#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 11110#(and (<= 60 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 60)), 11111#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 11112#(and (<= y 64) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 64 y)), 11113#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 11114#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 11115#(and (<= 70 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 70)), 11116#(and (<= y 72) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 72 y)), 11117#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 74) (<= 74 y)), 11118#(and (<= y 76) (<= 76 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 11119#(and (<= y 78) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 78 y)), 11120#(and (<= y 80) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 80 y)), 11121#(and (<= y 82) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 82 y)), 11122#(and (<= 84 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 84)), 11123#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 86 y) (<= y 86)), 11124#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 88) (<= 88 y)), 11125#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 90) (<= 90 y)), 11126#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 92 y) (<= y 92)), 11127#(and (<= 94 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 94)), 11128#(and (<= 96 y) (<= y 96) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 11129#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 98) (<= 98 y)), 11130#(and (<= 100 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 100)), 11131#(and (<= y 102) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 102 y)), 11132#(and (<= y 104) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 104 y)), 11133#(and (<= 106 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 106)), 11134#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 11135#(and (<= 110 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 110))] [2018-07-23 13:51:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:18,573 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:51:18,573 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:51:18,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=4161, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:51:18,574 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 66 states. [2018-07-23 13:51:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:19,030 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-07-23 13:51:19,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:51:19,030 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 65 [2018-07-23 13:51:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:19,031 INFO L225 Difference]: With dead ends: 68 [2018-07-23 13:51:19,031 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:51:19,032 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=4161, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:51:19,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:51:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:51:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:51:19,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-07-23 13:51:19,074 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-07-23 13:51:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:19,075 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-07-23 13:51:19,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:51:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-07-23 13:51:19,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:51:19,076 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:19,076 INFO L357 BasicCegarLoop]: trace histogram [64, 1, 1] [2018-07-23 13:51:19,076 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:19,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1633774535, now seen corresponding path program 64 times [2018-07-23 13:51:19,076 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:19,523 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:19,524 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:51:19,524 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:19,524 INFO L185 omatonBuilderFactory]: Interpolants [11435#true, 11436#false, 11437#(and (or (< 0 (+ (div x 2) 53)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 11438#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 11439#(and (<= 46 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 46)), 11440#(and (<= y 48) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 48 y)), 11441#(and (<= y 50) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 50 y)), 11442#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 52 y) (<= y 52)), 11443#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 54 y) (<= y 54)), 11444#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 56) (<= 56 y)), 11445#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 58 y) (<= y 58)), 11446#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 11447#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 62) (<= 62 y)), 11448#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 11449#(and (<= 66 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 66)), 11450#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 11451#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 11452#(and (<= y 72) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 72 y)), 11453#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 11454#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 76) (<= 76 y)), 11455#(and (<= y 78) (<= 78 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 11456#(and (<= y 80) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 80 y)), 11457#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 82) (<= 82 y)), 11458#(and (<= 84 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 84)), 11459#(and (<= 86 y) (<= y 86) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 11460#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 88) (<= 88 y)), 11461#(and (<= y 90) (<= 90 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 11462#(and (<= 92 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 92)), 11463#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 94 y) (<= y 94)), 11464#(and (<= 96 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 96)), 11465#(and (<= y 98) (<= 98 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 11466#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 100 y) (<= y 100)), 11467#(and (<= y 102) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 102 y)), 11468#(and (<= y 104) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 104 y)), 11469#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 11470#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 108 y) (<= y 108)), 11471#(and (<= 110 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 110)), 11472#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 11473#(and (<= 114 y) (<= y 114) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 11474#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 116 y) (<= y 116)), 11475#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 118) (<= 118 y)), 11476#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 11477#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 11478#(and (<= y 124) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 124 y)), 11479#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 11480#(and (<= 128 y) (<= y 128) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 11481#(and (<= y 130) (<= 130 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 11482#(and (<= y 132) (<= 132 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 11483#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 134 y) (<= y 134)), 11484#(and (<= 136 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 136)), 11485#(and (<= 138 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 138)), 11486#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 11487#(and (<= 142 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 142)), 11488#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 144) (<= 144 y)), 11489#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 146) (<= 146 y)), 11490#(and (<= 148 y) (<= y 148) (or (<= 2 x) (<= x 0))), 11491#(and (or (<= 4 x) (<= x 2)) (<= y 150) (<= 150 y)), 11492#(and (or (<= x 4) (<= 6 x)) (<= y 152) (<= 152 y)), 11493#(and (<= y 154) (or (<= 8 x) (<= x 6)) (<= 154 y)), 11494#(and (or (<= x 8) (<= 10 x)) (<= 156 y) (<= y 156)), 11495#(and (or (<= 12 x) (<= x 10)) (<= y 158) (<= 158 y)), 11496#(and (<= 160 y) (<= y 160) (or (<= 14 x) (<= x 12))), 11497#(and (<= y 162) (<= 162 y) (or (<= x 14) (<= 16 x))), 11498#(and (or (<= 18 x) (<= x 16)) (<= 164 y) (<= y 164)), 11499#(and (<= y 166) (<= 166 y) (or (<= 20 x) (<= x 18))), 11500#(and (or (<= 22 x) (<= x 20)) (<= y 168) (<= 168 y)), 11501#(and (or (<= 24 x) (<= x 22)) (<= y 170) (<= 170 y))] [2018-07-23 13:51:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 2080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:19,525 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:51:19,526 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:51:19,526 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=4291, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:51:19,526 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 67 states. [2018-07-23 13:51:20,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:20,015 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:51:20,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:51:20,015 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 66 [2018-07-23 13:51:20,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:20,016 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:51:20,016 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:51:20,016 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=4291, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:51:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:51:20,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:51:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:51:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:51:20,058 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-07-23 13:51:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:20,058 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:51:20,058 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:51:20,058 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:51:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:51:20,059 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:20,059 INFO L357 BasicCegarLoop]: trace histogram [65, 1, 1] [2018-07-23 13:51:20,059 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:20,059 INFO L82 PathProgramCache]: Analyzing trace with hash -892597023, now seen corresponding path program 65 times [2018-07-23 13:51:20,059 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:20,486 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:20,486 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:51:20,486 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:20,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:20,487 INFO L185 omatonBuilderFactory]: Interpolants [11776#true, 11777#false, 11778#(and (or (< 0 (+ (div x 2) 54)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 11779#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 104)) (<= (+ x 106) 0))), 11780#(and (<= 46 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 46)), 11781#(and (<= y 48) (<= 48 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 11782#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 50) (<= 50 y)), 11783#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 52 y) (<= y 52)), 11784#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 54 y) (<= y 54)), 11785#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 56) (<= 56 y)), 11786#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 58 y) (<= y 58)), 11787#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 60 y) (<= y 60)), 11788#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 62) (<= 62 y)), 11789#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 11790#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 11791#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 68 y) (<= y 68)), 11792#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 11793#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 11794#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 74) (<= 74 y)), 11795#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 11796#(and (<= y 78) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 78 y)), 11797#(and (<= y 80) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 80 y)), 11798#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 82) (<= 82 y)), 11799#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 84 y) (<= y 84)), 11800#(and (<= 86 y) (<= y 86) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 11801#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 88) (<= 88 y)), 11802#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 90) (<= 90 y)), 11803#(and (<= 92 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 92)), 11804#(and (<= 94 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 94)), 11805#(and (<= 96 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 96)), 11806#(and (<= y 98) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 98 y)), 11807#(and (<= 100 y) (<= y 100) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 11808#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 102) (<= 102 y)), 11809#(and (<= y 104) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 104 y)), 11810#(and (<= 106 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 106)), 11811#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 11812#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 110 y) (<= y 110)), 11813#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 11814#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 11815#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 116 y) (<= y 116)), 11816#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 118) (<= 118 y)), 11817#(and (<= y 120) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 120 y)), 11818#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 11819#(and (<= y 124) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 124 y)), 11820#(and (<= y 126) (<= 126 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 11821#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 11822#(and (<= y 130) (<= 130 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 11823#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 132) (<= 132 y)), 11824#(and (<= 134 y) (<= y 134) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 11825#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 136 y) (<= y 136)), 11826#(and (<= 138 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 138)), 11827#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 11828#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 11829#(and (<= y 144) (<= 144 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 11830#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 146) (<= 146 y)), 11831#(and (<= 148 y) (<= y 148) (or (<= (+ x 2) 0) (<= 0 x))), 11832#(and (<= y 150) (<= 150 y) (or (<= 2 x) (<= x 0))), 11833#(and (<= y 152) (or (<= 4 x) (<= x 2)) (<= 152 y)), 11834#(and (or (<= x 4) (<= 6 x)) (<= y 154) (<= 154 y)), 11835#(and (<= 156 y) (or (<= 8 x) (<= x 6)) (<= y 156)), 11836#(and (or (<= x 8) (<= 10 x)) (<= y 158) (<= 158 y)), 11837#(and (or (<= 12 x) (<= x 10)) (<= 160 y) (<= y 160)), 11838#(and (<= y 162) (<= 162 y) (or (<= 14 x) (<= x 12))), 11839#(and (<= 164 y) (<= y 164) (or (<= x 14) (<= 16 x))), 11840#(and (<= y 166) (or (<= 18 x) (<= x 16)) (<= 166 y)), 11841#(and (<= y 168) (or (<= 20 x) (<= x 18)) (<= 168 y)), 11842#(and (or (<= 22 x) (<= x 20)) (<= y 170) (<= 170 y)), 11843#(and (<= 172 y) (or (<= 24 x) (<= x 22)) (<= y 172))] [2018-07-23 13:51:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:20,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:51:20,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:51:20,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=4423, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:20,488 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 68 states. [2018-07-23 13:51:20,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:20,961 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-07-23 13:51:20,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:51:20,961 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 67 [2018-07-23 13:51:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:20,962 INFO L225 Difference]: With dead ends: 70 [2018-07-23 13:51:20,962 INFO L226 Difference]: Without dead ends: 69 [2018-07-23 13:51:20,962 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=4423, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-23 13:51:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-07-23 13:51:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:51:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-07-23 13:51:21,005 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-07-23 13:51:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:21,005 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-07-23 13:51:21,005 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:51:21,005 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-07-23 13:51:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:51:21,006 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:21,006 INFO L357 BasicCegarLoop]: trace histogram [66, 1, 1] [2018-07-23 13:51:21,006 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:21,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1900703993, now seen corresponding path program 66 times [2018-07-23 13:51:21,007 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:21,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:21,467 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:21,467 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:51:21,467 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:21,468 INFO L185 omatonBuilderFactory]: Interpolants [12160#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 12161#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 116 y) (<= y 116)), 12162#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 118) (<= 118 y)), 12163#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 120) (<= 120 y)), 12164#(and (<= y 122) (<= 122 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 12165#(and (<= y 124) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 124 y)), 12166#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 12167#(and (<= 128 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 128)), 12168#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 12169#(and (<= y 132) (<= 132 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 12170#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 134 y) (<= y 134)), 12171#(and (<= 136 y) (<= y 136) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 12172#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 138 y) (<= y 138)), 12173#(and (<= 140 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 140)), 12174#(and (<= 142 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 142)), 12175#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 12176#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 146) (<= 146 y)), 12177#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 148 y) (<= y 148)), 12178#(and (<= y 150) (or (<= (+ x 2) 0) (<= 0 x)) (<= 150 y)), 12179#(and (<= y 152) (<= 152 y) (or (<= 2 x) (<= x 0))), 12180#(and (<= y 154) (or (<= 4 x) (<= x 2)) (<= 154 y)), 12181#(and (or (<= x 4) (<= 6 x)) (<= 156 y) (<= y 156)), 12182#(and (<= y 158) (<= 158 y) (or (<= 8 x) (<= x 6))), 12183#(and (<= 160 y) (or (<= x 8) (<= 10 x)) (<= y 160)), 12184#(and (or (<= 12 x) (<= x 10)) (<= y 162) (<= 162 y)), 12185#(and (<= 164 y) (<= y 164) (or (<= 14 x) (<= x 12))), 12186#(and (<= y 166) (<= 166 y) (or (<= x 14) (<= 16 x))), 12187#(and (or (<= 18 x) (<= x 16)) (<= y 168) (<= 168 y)), 12188#(and (or (<= 20 x) (<= x 18)) (<= y 170) (<= 170 y)), 12189#(and (<= 172 y) (or (<= 22 x) (<= x 20)) (<= y 172)), 12190#(and (<= 174 y) (or (<= 24 x) (<= x 22)) (<= y 174)), 12122#true, 12123#false, 12124#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 55)) (<= x (* 2 (div x 2))))), 12125#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 106)) (<= (+ x 108) 0))), 12126#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 46 y) (<= y 46)), 12127#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 12128#(and (<= y 50) (<= 50 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 12129#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 52 y) (<= y 52)), 12130#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 54 y) (<= y 54)), 12131#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 56) (<= 56 y)), 12132#(and (<= 58 y) (<= y 58) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 12133#(and (<= 60 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 60)), 12134#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 62) (<= 62 y)), 12135#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 12136#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 12137#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 12138#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 70 y) (<= y 70)), 12139#(and (<= y 72) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 72 y)), 12140#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 12141#(and (<= y 76) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 76 y)), 12142#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 12143#(and (<= y 80) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 80 y)), 12144#(and (<= y 82) (<= 82 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 12145#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 84 y) (<= y 84)), 12146#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 86 y) (<= y 86)), 12147#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 88) (<= 88 y)), 12148#(and (<= y 90) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 90 y)), 12149#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 92 y) (<= y 92)), 12150#(and (<= 94 y) (<= y 94) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 12151#(and (<= 96 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 96)), 12152#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 98) (<= 98 y)), 12153#(and (<= 100 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 100)), 12154#(and (<= y 102) (<= 102 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 12155#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 104) (<= 104 y)), 12156#(and (<= 106 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 106)), 12157#(and (<= 108 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 108)), 12158#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 12159#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 112) (<= 112 y))] [2018-07-23 13:51:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:21,468 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:51:21,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:51:21,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=4557, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:51:21,469 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 69 states. [2018-07-23 13:51:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:21,977 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:51:21,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:51:21,977 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 68 [2018-07-23 13:51:21,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:21,977 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:51:21,978 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:51:21,978 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=4557, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:51:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:51:22,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:51:22,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:51:22,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:51:22,022 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-07-23 13:51:22,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:22,023 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:51:22,023 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:51:22,023 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:51:22,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:51:22,023 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:22,023 INFO L357 BasicCegarLoop]: trace histogram [67, 1, 1] [2018-07-23 13:51:22,024 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:22,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1207718305, now seen corresponding path program 67 times [2018-07-23 13:51:22,024 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:22,702 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:22,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:51:22,702 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:22,703 INFO L185 omatonBuilderFactory]: Interpolants [12473#true, 12474#false, 12475#(and (or (< 0 (+ (div x 2) 56)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 12476#(and (<= 44 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 44)), 12477#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 46 y) (<= y 46)), 12478#(and (<= y 48) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 48 y)), 12479#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 12480#(and (<= 52 y) (<= y 52) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 12481#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 54 y) (<= y 54)), 12482#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 56) (<= 56 y)), 12483#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 58 y) (<= y 58)), 12484#(and (<= 60 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 60)), 12485#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 62) (<= 62 y)), 12486#(and (<= y 64) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 64 y)), 12487#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 12488#(and (<= 68 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 68)), 12489#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 12490#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 72) (<= 72 y)), 12491#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 12492#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 12493#(and (<= y 78) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 78 y)), 12494#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 12495#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 82) (<= 82 y)), 12496#(and (<= 84 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 84)), 12497#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 86 y) (<= y 86)), 12498#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 88) (<= 88 y)), 12499#(and (<= y 90) (<= 90 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 12500#(and (<= 92 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 92)), 12501#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 94 y) (<= y 94)), 12502#(and (<= 96 y) (<= y 96) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 12503#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 98) (<= 98 y)), 12504#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 100 y) (<= y 100)), 12505#(and (<= y 102) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 102 y)), 12506#(and (<= y 104) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 104 y)), 12507#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 106 y) (<= y 106)), 12508#(and (<= 108 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 108)), 12509#(and (<= 110 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 110)), 12510#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 12511#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 114 y) (<= y 114)), 12512#(and (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 116 y) (<= y 116)), 12513#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 118) (<= 118 y)), 12514#(and (<= y 120) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 120 y)), 12515#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 122) (<= 122 y)), 12516#(and (<= y 124) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 124 y)), 12517#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 12518#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 12519#(and (<= y 130) (<= 130 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 12520#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 12521#(and (<= 134 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 134)), 12522#(and (<= 136 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 136)), 12523#(and (<= 138 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= y 138)), 12524#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 140 y) (<= y 140)), 12525#(and (<= 142 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 142)), 12526#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 12527#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 12528#(and (<= 148 y) (<= y 148) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 12529#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 150) (<= 150 y)), 12530#(and (<= y 152) (or (<= (+ x 2) 0) (<= 0 x)) (<= 152 y)), 12531#(and (<= y 154) (<= 154 y) (or (<= 2 x) (<= x 0))), 12532#(and (or (<= 4 x) (<= x 2)) (<= 156 y) (<= y 156)), 12533#(and (or (<= x 4) (<= 6 x)) (<= y 158) (<= 158 y)), 12534#(and (<= 160 y) (<= y 160) (or (<= 8 x) (<= x 6))), 12535#(and (<= y 162) (<= 162 y) (or (<= x 8) (<= 10 x))), 12536#(and (or (<= 12 x) (<= x 10)) (<= 164 y) (<= y 164)), 12537#(and (<= y 166) (<= 166 y) (or (<= 14 x) (<= x 12))), 12538#(and (<= y 168) (or (<= x 14) (<= 16 x)) (<= 168 y)), 12539#(and (or (<= 18 x) (<= x 16)) (<= y 170) (<= 170 y)), 12540#(and (<= 172 y) (or (<= 20 x) (<= x 18)) (<= y 172)), 12541#(and (<= 174 y) (or (<= 22 x) (<= x 20)) (<= y 174)), 12542#(and (or (<= 24 x) (<= x 22)) (<= y 176) (<= 176 y))] [2018-07-23 13:51:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2278 backedges. 0 proven. 2278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:22,703 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:51:22,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:51:22,704 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=4693, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:22,704 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 70 states. [2018-07-23 13:51:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:23,188 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-07-23 13:51:23,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:51:23,188 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 69 [2018-07-23 13:51:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:23,189 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:51:23,189 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 13:51:23,189 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=4693, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:23,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 13:51:23,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-23 13:51:23,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-23 13:51:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-07-23 13:51:23,233 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-07-23 13:51:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:23,233 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-07-23 13:51:23,234 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:51:23,234 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-07-23 13:51:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 13:51:23,234 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:23,234 INFO L357 BasicCegarLoop]: trace histogram [68, 1, 1] [2018-07-23 13:51:23,234 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:23,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1215438265, now seen corresponding path program 68 times [2018-07-23 13:51:23,235 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:23,694 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:23,694 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:51:23,694 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:23,695 INFO L185 omatonBuilderFactory]: Interpolants [12829#true, 12830#false, 12831#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 57)) (<= x (* 2 (div x 2))))), 12832#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 110)) (<= (+ x 112) 0))), 12833#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 46 y) (<= y 46)), 12834#(and (<= y 48) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 48 y)), 12835#(and (<= y 50) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 50 y)), 12836#(and (<= 52 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 52)), 12837#(and (<= 54 y) (<= y 54) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 12838#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 56) (<= 56 y)), 12839#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 58 y) (<= y 58)), 12840#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 60 y) (<= y 60)), 12841#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 62) (<= 62 y)), 12842#(and (<= y 64) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 64 y)), 12843#(and (<= 66 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 66)), 12844#(and (<= 68 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 68)), 12845#(and (<= 70 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 70)), 12846#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 12847#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 74) (<= 74 y)), 12848#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 12849#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 12850#(and (<= y 80) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 80 y)), 12851#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 12852#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 84 y) (<= y 84)), 12853#(and (<= 86 y) (<= y 86) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 12854#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 88) (<= 88 y)), 12855#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 90) (<= 90 y)), 12856#(and (<= 92 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 92)), 12857#(and (<= 94 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 94)), 12858#(and (<= 96 y) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 96)), 12859#(and (<= y 98) (<= 98 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 12860#(and (<= 100 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 100)), 12861#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 102) (<= 102 y)), 12862#(and (<= y 104) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 104 y)), 12863#(and (<= 106 y) (<= y 106) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 12864#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 108 y) (<= y 108)), 12865#(and (<= 110 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 110)), 12866#(and (<= y 112) (<= 112 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 12867#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 12868#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 116 y) (<= y 116)), 12869#(and (<= y 118) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 118 y)), 12870#(and (<= y 120) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 120 y)), 12871#(and (<= y 122) (<= 122 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 12872#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 124) (<= 124 y)), 12873#(and (<= y 126) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 126 y)), 12874#(and (<= 128 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 128)), 12875#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 12876#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 132) (<= 132 y)), 12877#(and (<= 134 y) (<= y 134) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 12878#(and (<= 136 y) (<= y 136) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 12879#(and (<= 138 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 138)), 12880#(and (<= 140 y) (<= y 140) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 12881#(and (<= 142 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 142)), 12882#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 12883#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 146) (<= 146 y)), 12884#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 12885#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 150) (<= 150 y)), 12886#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 152) (<= 152 y)), 12887#(and (<= y 154) (or (<= (+ x 2) 0) (<= 0 x)) (<= 154 y)), 12888#(and (<= 156 y) (<= y 156) (or (<= 2 x) (<= x 0))), 12889#(and (or (<= 4 x) (<= x 2)) (<= y 158) (<= 158 y)), 12890#(and (or (<= x 4) (<= 6 x)) (<= 160 y) (<= y 160)), 12891#(and (<= y 162) (<= 162 y) (or (<= 8 x) (<= x 6))), 12892#(and (<= 164 y) (<= y 164) (or (<= x 8) (<= 10 x))), 12893#(and (or (<= 12 x) (<= x 10)) (<= y 166) (<= 166 y)), 12894#(and (<= y 168) (<= 168 y) (or (<= 14 x) (<= x 12))), 12895#(and (<= y 170) (or (<= x 14) (<= 16 x)) (<= 170 y)), 12896#(and (<= 172 y) (or (<= 18 x) (<= x 16)) (<= y 172)), 12897#(and (<= 174 y) (or (<= 20 x) (<= x 18)) (<= y 174)), 12898#(and (or (<= 22 x) (<= x 20)) (<= y 176) (<= 176 y)), 12899#(and (<= y 178) (<= 178 y) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:51:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2346 backedges. 0 proven. 2346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:23,695 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:51:23,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:51:23,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=4831, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:23,696 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 71 states. [2018-07-23 13:51:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:24,216 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:51:24,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:51:24,216 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 70 [2018-07-23 13:51:24,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:24,217 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:51:24,217 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:51:24,218 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=4831, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:24,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:51:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:51:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:51:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:51:24,270 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-07-23 13:51:24,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:24,270 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:51:24,270 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:51:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:51:24,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:51:24,271 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:24,271 INFO L357 BasicCegarLoop]: trace histogram [69, 1, 1] [2018-07-23 13:51:24,271 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:24,271 INFO L82 PathProgramCache]: Analyzing trace with hash 976119393, now seen corresponding path program 69 times [2018-07-23 13:51:24,271 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:24,755 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:24,755 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:51:24,755 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:24,756 INFO L185 omatonBuilderFactory]: Interpolants [13190#true, 13191#false, 13192#(and (<= y 42) (or (< 0 (+ (div x 2) 58)) (<= x (* 2 (div x 2)))) (<= 42 y)), 13193#(and (<= 44 y) (<= y 44) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 13194#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 46 y) (<= y 46)), 13195#(and (<= y 48) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 48 y)), 13196#(and (<= y 50) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 50 y)), 13197#(and (<= 52 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 52)), 13198#(and (<= 54 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 54)), 13199#(and (<= y 56) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 56 y)), 13200#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 58 y) (<= y 58)), 13201#(and (<= 60 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 60)), 13202#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 62) (<= 62 y)), 13203#(and (<= y 64) (<= 64 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 13204#(and (<= 66 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 66)), 13205#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 68 y) (<= y 68)), 13206#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 13207#(and (<= y 72) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 72 y)), 13208#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 13209#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 76) (<= 76 y)), 13210#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 13211#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 13212#(and (<= y 82) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 82 y)), 13213#(and (<= 84 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 84)), 13214#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 86 y) (<= y 86)), 13215#(and (<= y 88) (<= 88 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 13216#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 90) (<= 90 y)), 13217#(and (<= 92 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 92)), 13218#(and (<= 94 y) (<= y 94) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 13219#(and (<= 96 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 96)), 13220#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 98) (<= 98 y)), 13221#(and (<= 100 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 100)), 13222#(and (<= y 102) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 102 y)), 13223#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 104) (<= 104 y)), 13224#(and (<= 106 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 106)), 13225#(and (<= 108 y) (<= y 108) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 13226#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 110 y) (<= y 110)), 13227#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 13228#(and (<= 114 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 114)), 13229#(and (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 116 y) (<= y 116)), 13230#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 118) (<= 118 y)), 13231#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 13232#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 13233#(and (<= y 124) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 124 y)), 13234#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 126) (<= 126 y)), 13235#(and (<= 128 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 128)), 13236#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 13237#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 132) (<= 132 y)), 13238#(and (<= 134 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 134)), 13239#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 13240#(and (<= 138 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 138)), 13241#(and (<= 140 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 140)), 13242#(and (<= 142 y) (<= y 142) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 13243#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 144) (<= 144 y)), 13244#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 146) (<= 146 y)), 13245#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 13246#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 13247#(and (<= y 152) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 152 y)), 13248#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 154) (<= 154 y)), 13249#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 156 y) (<= y 156)), 13250#(and (<= y 158) (<= 158 y) (or (<= 2 x) (<= x 0))), 13251#(and (<= 160 y) (or (<= 4 x) (<= x 2)) (<= y 160)), 13252#(and (<= y 162) (or (<= x 4) (<= 6 x)) (<= 162 y)), 13253#(and (<= 164 y) (<= y 164) (or (<= 8 x) (<= x 6))), 13254#(and (<= y 166) (or (<= x 8) (<= 10 x)) (<= 166 y)), 13255#(and (or (<= 12 x) (<= x 10)) (<= y 168) (<= 168 y)), 13256#(and (<= y 170) (<= 170 y) (or (<= 14 x) (<= x 12))), 13257#(and (<= 172 y) (<= y 172) (or (<= x 14) (<= 16 x))), 13258#(and (<= 174 y) (or (<= 18 x) (<= x 16)) (<= y 174)), 13259#(and (<= y 176) (or (<= 20 x) (<= x 18)) (<= 176 y)), 13260#(and (<= y 178) (<= 178 y) (or (<= 22 x) (<= x 20))), 13261#(and (<= 180 y) (or (<= 24 x) (<= x 22)) (<= y 180))] [2018-07-23 13:51:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2415 backedges. 0 proven. 2415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:24,756 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:51:24,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:51:24,757 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=4971, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:24,757 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 72 states. [2018-07-23 13:51:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:25,291 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-07-23 13:51:25,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:51:25,291 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 71 [2018-07-23 13:51:25,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:25,292 INFO L225 Difference]: With dead ends: 74 [2018-07-23 13:51:25,292 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:51:25,292 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=4971, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:25,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:51:25,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:51:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:51:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-07-23 13:51:25,339 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-07-23 13:51:25,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:25,339 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-07-23 13:51:25,339 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:51:25,339 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-07-23 13:51:25,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:51:25,340 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:25,340 INFO L357 BasicCegarLoop]: trace histogram [70, 1, 1] [2018-07-23 13:51:25,340 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash 194930055, now seen corresponding path program 70 times [2018-07-23 13:51:25,340 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:25,892 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:25,892 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:51:25,893 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:25,893 INFO L185 omatonBuilderFactory]: Interpolants [13568#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 62) (<= 62 y)), 13569#(and (<= y 64) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 64 y)), 13570#(and (<= 66 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 66)), 13571#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 68 y) (<= y 68)), 13572#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 70 y) (<= y 70)), 13573#(and (<= y 72) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 72 y)), 13574#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 74) (<= 74 y)), 13575#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 13576#(and (<= y 78) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 78 y)), 13577#(and (<= y 80) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 80 y)), 13578#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 13579#(and (<= 84 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 84)), 13580#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 13581#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 88) (<= 88 y)), 13582#(and (<= y 90) (<= 90 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 13583#(and (<= 92 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 92)), 13584#(and (<= 94 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 94)), 13585#(and (<= 96 y) (<= y 96) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 13586#(and (<= y 98) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 98 y)), 13587#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 100 y) (<= y 100)), 13588#(and (<= y 102) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 102 y)), 13589#(and (<= y 104) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 104 y)), 13590#(and (<= 106 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 106)), 13591#(and (<= 108 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 108)), 13592#(and (<= 110 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 110)), 13593#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 112) (<= 112 y)), 13594#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 114 y) (<= y 114)), 13595#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 116 y) (<= y 116)), 13596#(and (<= y 118) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 118 y)), 13597#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 120) (<= 120 y)), 13598#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 13599#(and (<= y 124) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 124 y)), 13600#(and (<= y 126) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 126 y)), 13601#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 128 y) (<= y 128)), 13602#(and (<= y 130) (<= 130 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 13603#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 132) (<= 132 y)), 13604#(and (<= 134 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 134)), 13605#(and (<= 136 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 136)), 13606#(and (<= 138 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 138)), 13607#(and (<= 140 y) (<= y 140) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 13608#(and (<= 142 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 142)), 13609#(and (<= y 144) (<= 144 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 13610#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 146) (<= 146 y)), 13611#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 13612#(and (<= y 150) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 150 y)), 13613#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 13614#(and (<= y 154) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 154 y)), 13615#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 156 y) (<= y 156)), 13616#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 158) (<= 158 y)), 13617#(and (<= 160 y) (<= y 160) (or (<= 2 x) (<= x 0))), 13618#(and (<= y 162) (<= 162 y) (or (<= 4 x) (<= x 2))), 13619#(and (or (<= x 4) (<= 6 x)) (<= 164 y) (<= y 164)), 13620#(and (<= y 166) (<= 166 y) (or (<= 8 x) (<= x 6))), 13621#(and (<= y 168) (or (<= x 8) (<= 10 x)) (<= 168 y)), 13622#(and (or (<= 12 x) (<= x 10)) (<= y 170) (<= 170 y)), 13623#(and (<= 172 y) (<= y 172) (or (<= 14 x) (<= x 12))), 13624#(and (<= 174 y) (or (<= x 14) (<= 16 x)) (<= y 174)), 13625#(and (or (<= 18 x) (<= x 16)) (<= y 176) (<= 176 y)), 13626#(and (<= y 178) (<= 178 y) (or (<= 20 x) (<= x 18))), 13627#(and (<= 180 y) (or (<= 22 x) (<= x 20)) (<= y 180)), 13628#(and (or (<= 24 x) (<= x 22)) (<= 182 y) (<= y 182)), 13556#true, 13557#false, 13558#(and (or (< 0 (+ (div x 2) 59)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 13559#(and (<= 44 y) (<= y 44) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 13560#(and (<= 46 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 46)), 13561#(and (<= y 48) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 48 y)), 13562#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 50) (<= 50 y)), 13563#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 52 y) (<= y 52)), 13564#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 54 y) (<= y 54)), 13565#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 56) (<= 56 y)), 13566#(and (<= 58 y) (<= y 58) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 13567#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 60 y) (<= y 60))] [2018-07-23 13:51:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2485 backedges. 0 proven. 2485 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:25,894 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:51:25,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:51:25,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=5113, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:51:25,894 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 73 states. [2018-07-23 13:51:26,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:26,425 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:51:26,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:51:26,426 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 72 [2018-07-23 13:51:26,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:26,427 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:51:26,427 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:51:26,427 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=5113, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:51:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:51:26,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:51:26,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:51:26,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:51:26,478 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-07-23 13:51:26,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:26,478 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:51:26,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:51:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:51:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:51:26,479 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:26,479 INFO L357 BasicCegarLoop]: trace histogram [71, 1, 1] [2018-07-23 13:51:26,479 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:26,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1747864353, now seen corresponding path program 71 times [2018-07-23 13:51:26,479 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:26,981 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:26,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:51:26,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:26,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:26,982 INFO L185 omatonBuilderFactory]: Interpolants [13952#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 13953#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 90) (<= 90 y)), 13954#(and (<= 92 y) (<= y 92) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 13955#(and (<= 94 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 94)), 13956#(and (<= 96 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 96)), 13957#(and (<= y 98) (<= 98 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 13958#(and (<= 100 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 100)), 13959#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 102) (<= 102 y)), 13960#(and (<= y 104) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 104 y)), 13961#(and (<= 106 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 106)), 13962#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 108 y) (<= y 108)), 13963#(and (<= 110 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 110)), 13964#(and (<= y 112) (<= 112 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 13965#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 114 y) (<= y 114)), 13966#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 116 y) (<= y 116)), 13967#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 118) (<= 118 y)), 13968#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 13969#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 122) (<= 122 y)), 13970#(and (<= y 124) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 124 y)), 13971#(and (<= y 126) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 126 y)), 13972#(and (<= 128 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 128)), 13973#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 130) (<= 130 y)), 13974#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 132) (<= 132 y)), 13975#(and (<= 134 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 134)), 13976#(and (<= 136 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 136)), 13977#(and (<= 138 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 138)), 13978#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 13979#(and (<= 142 y) (<= y 142) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 13980#(and (<= y 144) (<= 144 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 13981#(and (<= y 146) (<= 146 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 13982#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 148 y) (<= y 148)), 13983#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 150) (<= 150 y)), 13984#(and (<= y 152) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 152 y)), 13985#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 13986#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 156 y) (<= y 156)), 13987#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 158) (<= 158 y)), 13988#(and (<= 160 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 160)), 13989#(and (<= y 162) (<= 162 y) (or (<= 2 x) (<= x 0))), 13990#(and (<= 164 y) (<= y 164) (or (<= 4 x) (<= x 2))), 13991#(and (or (<= x 4) (<= 6 x)) (<= y 166) (<= 166 y)), 13992#(and (<= y 168) (or (<= 8 x) (<= x 6)) (<= 168 y)), 13993#(and (or (<= x 8) (<= 10 x)) (<= y 170) (<= 170 y)), 13994#(and (or (<= 12 x) (<= x 10)) (<= 172 y) (<= y 172)), 13995#(and (<= 174 y) (<= y 174) (or (<= 14 x) (<= x 12))), 13996#(and (<= y 176) (or (<= x 14) (<= 16 x)) (<= 176 y)), 13997#(and (<= y 178) (<= 178 y) (or (<= 18 x) (<= x 16))), 13998#(and (<= 180 y) (or (<= 20 x) (<= x 18)) (<= y 180)), 13999#(and (or (<= 22 x) (<= x 20)) (<= 182 y) (<= y 182)), 14000#(and (or (<= 24 x) (<= x 22)) (<= y 184) (<= 184 y)), 13927#true, 13928#false, 13929#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 60)) (<= x (* 2 (div x 2))))), 13930#(and (<= 44 y) (<= y 44) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 13931#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 46 y) (<= y 46)), 13932#(and (<= y 48) (<= 48 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 13933#(and (<= y 50) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 50 y)), 13934#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 52 y) (<= y 52)), 13935#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 54 y) (<= y 54)), 13936#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 56) (<= 56 y)), 13937#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 13938#(and (<= 60 y) (<= y 60) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 13939#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 62) (<= 62 y)), 13940#(and (<= y 64) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 64 y)), 13941#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 66 y) (<= y 66)), 13942#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 68 y) (<= y 68)), 13943#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 70 y) (<= y 70)), 13944#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 72) (<= 72 y)), 13945#(and (<= y 74) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 74 y)), 13946#(and (<= y 76) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 76 y)), 13947#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 13948#(and (<= y 80) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 80 y)), 13949#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 13950#(and (<= 84 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 84)), 13951#(and (<= 86 y) (<= y 86) (or (<= (+ x 76) 0) (<= 0 (+ x 74))))] [2018-07-23 13:51:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2556 backedges. 0 proven. 2556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:26,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:51:26,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:51:26,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=5257, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:51:26,983 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 74 states. [2018-07-23 13:51:27,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,551 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-07-23 13:51:27,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:51:27,551 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 73 [2018-07-23 13:51:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,552 INFO L225 Difference]: With dead ends: 76 [2018-07-23 13:51:27,552 INFO L226 Difference]: Without dead ends: 75 [2018-07-23 13:51:27,553 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=5257, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:51:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-07-23 13:51:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-07-23 13:51:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:51:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-07-23 13:51:27,601 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-07-23 13:51:27,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,602 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-07-23 13:51:27,602 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:51:27,602 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-07-23 13:51:27,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:51:27,602 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,602 INFO L357 BasicCegarLoop]: trace histogram [72, 1, 1] [2018-07-23 13:51:27,602 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1650779961, now seen corresponding path program 72 times [2018-07-23 13:51:27,603 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,334 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:28,334 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,334 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:51:28,335 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:28,335 INFO L185 omatonBuilderFactory]: Interpolants [14336#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 104) (<= 104 y)), 14337#(and (<= 106 y) (<= y 106) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 14338#(and (<= 108 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 108)), 14339#(and (<= 110 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 110)), 14340#(and (<= y 112) (<= 112 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 14341#(and (<= 114 y) (<= y 114) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 14342#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 116 y) (<= y 116)), 14343#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 118) (<= 118 y)), 14344#(and (<= y 120) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 120 y)), 14345#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 14346#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 124) (<= 124 y)), 14347#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 14348#(and (<= 128 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 128)), 14349#(and (<= y 130) (<= 130 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 14350#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 132) (<= 132 y)), 14351#(and (<= 134 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 134)), 14352#(and (<= 136 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 136)), 14353#(and (<= 138 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 138)), 14354#(and (<= 140 y) (<= y 140) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 14355#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 14356#(and (<= y 144) (<= 144 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 14357#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 146) (<= 146 y)), 14358#(and (<= 148 y) (<= y 148) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 14359#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 150) (<= 150 y)), 14360#(and (<= y 152) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 152 y)), 14361#(and (<= y 154) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 154 y)), 14362#(and (<= 156 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 156)), 14363#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 158) (<= 158 y)), 14364#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 160 y) (<= y 160)), 14365#(and (<= y 162) (<= 162 y) (or (<= (+ x 2) 0) (<= 0 x))), 14366#(and (<= 164 y) (<= y 164) (or (<= 2 x) (<= x 0))), 14367#(and (<= y 166) (or (<= 4 x) (<= x 2)) (<= 166 y)), 14368#(and (or (<= x 4) (<= 6 x)) (<= y 168) (<= 168 y)), 14369#(and (<= y 170) (or (<= 8 x) (<= x 6)) (<= 170 y)), 14370#(and (<= 172 y) (or (<= x 8) (<= 10 x)) (<= y 172)), 14371#(and (or (<= 12 x) (<= x 10)) (<= 174 y) (<= y 174)), 14372#(and (<= y 176) (<= 176 y) (or (<= 14 x) (<= x 12))), 14373#(and (<= y 178) (<= 178 y) (or (<= x 14) (<= 16 x))), 14374#(and (<= 180 y) (or (<= 18 x) (<= x 16)) (<= y 180)), 14375#(and (<= 182 y) (or (<= 20 x) (<= x 18)) (<= y 182)), 14376#(and (or (<= 22 x) (<= x 20)) (<= y 184) (<= 184 y)), 14377#(and (<= 186 y) (or (<= 24 x) (<= x 22)) (<= y 186)), 14303#true, 14304#false, 14305#(and (<= y 42) (or (< 0 (+ (div x 2) 61)) (<= x (* 2 (div x 2)))) (<= 42 y)), 14306#(and (<= 44 y) (<= y 44) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 14307#(and (<= 46 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 46)), 14308#(and (<= y 48) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 48 y)), 14309#(and (<= y 50) (<= 50 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 14310#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 52 y) (<= y 52)), 14311#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 54 y) (<= y 54)), 14312#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 56) (<= 56 y)), 14313#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 104)) (<= (+ x 106) 0))), 14314#(and (<= 60 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 60)), 14315#(and (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 62) (<= 62 y)), 14316#(and (<= y 64) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 64 y)), 14317#(and (<= 66 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 66)), 14318#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 68 y) (<= y 68)), 14319#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 70 y) (<= y 70)), 14320#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 72) (<= 72 y)), 14321#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 74) (<= 74 y)), 14322#(and (<= y 76) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 76 y)), 14323#(and (<= y 78) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 78 y)), 14324#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 14325#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 82) (<= 82 y)), 14326#(and (<= 84 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 84)), 14327#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 14328#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 88) (<= 88 y)), 14329#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 14330#(and (<= 92 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 92)), 14331#(and (<= 94 y) (<= y 94) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 14332#(and (<= 96 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 96)), 14333#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 98) (<= 98 y)), 14334#(and (<= 100 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 100)), 14335#(and (<= y 102) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 102 y))] [2018-07-23 13:51:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2628 backedges. 0 proven. 2628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:28,335 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:51:28,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:51:28,336 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=5403, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:51:28,336 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 75 states. [2018-07-23 13:51:28,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,872 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:51:28,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:51:28,873 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 74 [2018-07-23 13:51:28,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,873 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:51:28,873 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:51:28,874 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=5403, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:51:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:51:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:51:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:51:28,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:51:28,950 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-07-23 13:51:28,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,951 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:51:28,951 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:51:28,951 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:51:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:51:28,951 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,951 INFO L357 BasicCegarLoop]: trace histogram [73, 1, 1] [2018-07-23 13:51:28,952 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,952 INFO L82 PathProgramCache]: Analyzing trace with hash 365428705, now seen corresponding path program 73 times [2018-07-23 13:51:28,952 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:29,536 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:51:29,536 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:29,537 INFO L185 omatonBuilderFactory]: Interpolants [14720#(and (<= 110 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 110)), 14721#(and (<= y 112) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 112 y)), 14722#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 114 y) (<= y 114)), 14723#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 116 y) (<= y 116)), 14724#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 118) (<= 118 y)), 14725#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 120) (<= 120 y)), 14726#(and (<= y 122) (<= 122 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 14727#(and (<= y 124) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 124 y)), 14728#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 126) (<= 126 y)), 14729#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 14730#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 14731#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 132) (<= 132 y)), 14732#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 134 y) (<= y 134)), 14733#(and (<= 136 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 136)), 14734#(and (<= 138 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 138)), 14735#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 14736#(and (<= 142 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 142)), 14737#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 14738#(and (<= y 146) (<= 146 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 14739#(and (<= 148 y) (<= y 148) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 14740#(and (<= y 150) (<= 150 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 14741#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 152) (<= 152 y)), 14742#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 154) (<= 154 y)), 14743#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 156 y) (<= y 156)), 14744#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 14745#(and (<= 160 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 160)), 14746#(and (<= y 162) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 162 y)), 14747#(and (<= 164 y) (<= y 164) (or (<= (+ x 2) 0) (<= 0 x))), 14748#(and (<= y 166) (<= 166 y) (or (<= 2 x) (<= x 0))), 14749#(and (<= y 168) (or (<= 4 x) (<= x 2)) (<= 168 y)), 14750#(and (or (<= x 4) (<= 6 x)) (<= y 170) (<= 170 y)), 14751#(and (<= 172 y) (<= y 172) (or (<= 8 x) (<= x 6))), 14752#(and (<= 174 y) (or (<= x 8) (<= 10 x)) (<= y 174)), 14753#(and (or (<= 12 x) (<= x 10)) (<= y 176) (<= 176 y)), 14754#(and (<= y 178) (<= 178 y) (or (<= 14 x) (<= x 12))), 14755#(and (<= 180 y) (or (<= x 14) (<= 16 x)) (<= y 180)), 14756#(and (or (<= 18 x) (<= x 16)) (<= 182 y) (<= y 182)), 14757#(and (<= y 184) (<= 184 y) (or (<= 20 x) (<= x 18))), 14758#(and (<= 186 y) (or (<= 22 x) (<= x 20)) (<= y 186)), 14759#(and (or (<= 24 x) (<= x 22)) (<= y 188) (<= 188 y)), 14684#true, 14685#false, 14686#(and (or (< 0 (+ (div x 2) 62)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 14687#(and (<= 44 y) (<= y 44) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 14688#(and (<= 46 y) (<= y 46) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 14689#(and (<= y 48) (<= 48 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 14690#(and (<= y 50) (<= 50 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 14691#(and (<= 52 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 52)), 14692#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 54 y) (<= y 54)), 14693#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 56) (<= 56 y)), 14694#(and (<= 58 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 58)), 14695#(and (<= 60 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 60)), 14696#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 62) (<= 62 y)), 14697#(and (<= y 64) (<= 64 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 14698#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 66 y) (<= y 66)), 14699#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 68 y) (<= y 68)), 14700#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 70 y) (<= y 70)), 14701#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 72) (<= 72 y)), 14702#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 74) (<= 74 y)), 14703#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 76) (<= 76 y)), 14704#(and (<= y 78) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 78 y)), 14705#(and (<= y 80) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 80 y)), 14706#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 14707#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 84 y) (<= y 84)), 14708#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 14709#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 14710#(and (<= y 90) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 90 y)), 14711#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 14712#(and (<= 94 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 94)), 14713#(and (<= 96 y) (<= y 96) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 14714#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 98) (<= 98 y)), 14715#(and (<= 100 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 100)), 14716#(and (<= y 102) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 102 y)), 14717#(and (<= y 104) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 104 y)), 14718#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 106 y) (<= y 106)), 14719#(and (<= 108 y) (<= y 108) (or (<= (+ x 58) 0) (<= 0 (+ x 56))))] [2018-07-23 13:51:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2701 backedges. 0 proven. 2701 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:29,537 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:51:29,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:51:29,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=5551, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:29,538 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 76 states. [2018-07-23 13:51:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,136 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-07-23 13:51:30,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:51:30,136 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 75 [2018-07-23 13:51:30,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,137 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:51:30,137 INFO L226 Difference]: Without dead ends: 77 [2018-07-23 13:51:30,138 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=5551, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-07-23 13:51:30,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-07-23 13:51:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-07-23 13:51:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-07-23 13:51:30,207 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-07-23 13:51:30,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,208 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-07-23 13:51:30,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:51:30,208 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-07-23 13:51:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-07-23 13:51:30,208 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,208 INFO L357 BasicCegarLoop]: trace histogram [74, 1, 1] [2018-07-23 13:51:30,209 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1556612089, now seen corresponding path program 74 times [2018-07-23 13:51:30,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:30,745 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:51:30,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:30,746 INFO L185 omatonBuilderFactory]: Interpolants [15104#(and (<= 106 y) (<= y 106) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 15105#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 108 y) (<= y 108)), 15106#(and (<= 110 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 110)), 15107#(and (<= y 112) (<= 112 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 15108#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 114 y) (<= y 114)), 15109#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 116 y) (<= y 116)), 15110#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 118) (<= 118 y)), 15111#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 120) (<= 120 y)), 15112#(and (<= y 122) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 122 y)), 15113#(and (<= y 124) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 124 y)), 15114#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 15115#(and (<= 128 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 128)), 15116#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 15117#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 132) (<= 132 y)), 15118#(and (<= 134 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 134)), 15119#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 136 y) (<= y 136)), 15120#(and (<= 138 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 138)), 15121#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 15122#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 15123#(and (<= y 144) (<= 144 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 15124#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 15125#(and (<= 148 y) (<= y 148) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 15126#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 150) (<= 150 y)), 15127#(and (<= y 152) (<= 152 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 15128#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 154) (<= 154 y)), 15129#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 156 y) (<= y 156)), 15130#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 158) (<= 158 y)), 15131#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 15132#(and (<= y 162) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 162 y)), 15133#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 164 y) (<= y 164)), 15134#(and (<= y 166) (<= 166 y) (or (<= (+ x 2) 0) (<= 0 x))), 15135#(and (<= y 168) (<= 168 y) (or (<= 2 x) (<= x 0))), 15136#(and (or (<= 4 x) (<= x 2)) (<= y 170) (<= 170 y)), 15137#(and (or (<= x 4) (<= 6 x)) (<= 172 y) (<= y 172)), 15138#(and (<= 174 y) (or (<= 8 x) (<= x 6)) (<= y 174)), 15139#(and (or (<= x 8) (<= 10 x)) (<= y 176) (<= 176 y)), 15140#(and (or (<= 12 x) (<= x 10)) (<= y 178) (<= 178 y)), 15141#(and (<= 180 y) (<= y 180) (or (<= 14 x) (<= x 12))), 15142#(and (<= 182 y) (or (<= x 14) (<= 16 x)) (<= y 182)), 15143#(and (or (<= 18 x) (<= x 16)) (<= y 184) (<= 184 y)), 15144#(and (<= 186 y) (or (<= 20 x) (<= x 18)) (<= y 186)), 15145#(and (or (<= 22 x) (<= x 20)) (<= y 188) (<= 188 y)), 15146#(and (or (<= 24 x) (<= x 22)) (<= 190 y) (<= y 190)), 15070#true, 15071#false, 15072#(and (<= y 42) (or (< 0 (+ (div x 2) 63)) (<= x (* 2 (div x 2)))) (<= 42 y)), 15073#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 44 y) (<= y 44)), 15074#(and (<= 46 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 46)), 15075#(and (<= y 48) (<= 48 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 15076#(and (<= y 50) (<= 50 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 15077#(and (<= 52 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 52)), 15078#(and (<= 54 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 54)), 15079#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 56) (<= 56 y)), 15080#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 58 y) (<= y 58)), 15081#(and (<= 60 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 60)), 15082#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 62) (<= 62 y)), 15083#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 15084#(and (<= 66 y) (<= y 66) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 15085#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 68 y) (<= y 68)), 15086#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 70 y) (<= y 70)), 15087#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 72) (<= 72 y)), 15088#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 74) (<= 74 y)), 15089#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 76) (<= 76 y)), 15090#(and (<= y 78) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 78 y)), 15091#(and (<= y 80) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 80 y)), 15092#(and (<= y 82) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 82 y)), 15093#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 15094#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 86 y) (<= y 86)), 15095#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 15096#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 15097#(and (<= 92 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 92)), 15098#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 15099#(and (<= 96 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 96)), 15100#(and (<= y 98) (<= 98 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 15101#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 100 y) (<= y 100)), 15102#(and (<= y 102) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 102 y)), 15103#(and (<= y 104) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 104 y))] [2018-07-23 13:51:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2775 backedges. 0 proven. 2775 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:30,746 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:51:30,746 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:51:30,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=5701, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:51:30,747 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 77 states. [2018-07-23 13:51:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,370 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:51:31,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:51:31,370 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 76 [2018-07-23 13:51:31,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,370 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:51:31,370 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:51:31,371 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=5701, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:51:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:51:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:51:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:51:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:51:31,434 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-07-23 13:51:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,434 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:51:31,434 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:51:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:51:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:51:31,435 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,435 INFO L357 BasicCegarLoop]: trace histogram [75, 1, 1] [2018-07-23 13:51:31,435 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1010334559, now seen corresponding path program 75 times [2018-07-23 13:51:31,435 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:32,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:51:32,000 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:32,001 INFO L185 omatonBuilderFactory]: Interpolants [15488#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 15489#(and (<= 94 y) (<= y 94) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 15490#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 15491#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 98) (<= 98 y)), 15492#(and (<= 100 y) (<= y 100) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 15493#(and (<= y 102) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 102 y)), 15494#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 104) (<= 104 y)), 15495#(and (<= 106 y) (<= y 106) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 15496#(and (<= 108 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 108)), 15497#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 110 y) (<= y 110)), 15498#(and (<= y 112) (<= 112 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 15499#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 114 y) (<= y 114)), 15500#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 116 y) (<= y 116)), 15501#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 118) (<= 118 y)), 15502#(and (<= y 120) (<= 120 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 15503#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 122) (<= 122 y)), 15504#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 124) (<= 124 y)), 15505#(and (<= y 126) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 126 y)), 15506#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 15507#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 130) (<= 130 y)), 15508#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 15509#(and (<= 134 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 134)), 15510#(and (<= 136 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 136)), 15511#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 138 y) (<= y 138)), 15512#(and (<= 140 y) (<= y 140) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 15513#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 15514#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 15515#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 146) (<= 146 y)), 15516#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 15517#(and (<= y 150) (<= 150 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 15518#(and (<= y 152) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 152 y)), 15519#(and (<= y 154) (<= 154 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 15520#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 156 y) (<= y 156)), 15521#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 158) (<= 158 y)), 15522#(and (<= 160 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 160)), 15523#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 15524#(and (<= 164 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 164)), 15525#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 166) (<= 166 y)), 15526#(and (<= y 168) (or (<= (+ x 2) 0) (<= 0 x)) (<= 168 y)), 15527#(and (<= y 170) (<= 170 y) (or (<= 2 x) (<= x 0))), 15528#(and (<= 172 y) (or (<= 4 x) (<= x 2)) (<= y 172)), 15529#(and (or (<= x 4) (<= 6 x)) (<= 174 y) (<= y 174)), 15530#(and (<= y 176) (or (<= 8 x) (<= x 6)) (<= 176 y)), 15531#(and (<= y 178) (<= 178 y) (or (<= x 8) (<= 10 x))), 15532#(and (or (<= 12 x) (<= x 10)) (<= 180 y) (<= y 180)), 15533#(and (<= 182 y) (<= y 182) (or (<= 14 x) (<= x 12))), 15534#(and (<= y 184) (<= 184 y) (or (<= x 14) (<= 16 x))), 15535#(and (<= 186 y) (or (<= 18 x) (<= x 16)) (<= y 186)), 15536#(and (or (<= 20 x) (<= x 18)) (<= y 188) (<= 188 y)), 15537#(and (or (<= 22 x) (<= x 20)) (<= 190 y) (<= y 190)), 15538#(and (or (<= 24 x) (<= x 22)) (<= 192 y) (<= y 192)), 15461#true, 15462#false, 15463#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 64)) (<= x (* 2 (div x 2))))), 15464#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 15465#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 46 y) (<= y 46)), 15466#(and (<= y 48) (<= 48 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 15467#(and (<= y 50) (<= 50 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 15468#(and (<= 52 y) (<= y 52) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 15469#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 54 y) (<= y 54)), 15470#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 56) (<= 56 y)), 15471#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 58 y) (<= y 58)), 15472#(and (<= 60 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 60)), 15473#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 62) (<= 62 y)), 15474#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0))), 15475#(and (<= 66 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 66)), 15476#(and (<= 68 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 68)), 15477#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 70 y) (<= y 70)), 15478#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 72) (<= 72 y)), 15479#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 74) (<= 74 y)), 15480#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 76) (<= 76 y)), 15481#(and (<= y 78) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 78 y)), 15482#(and (<= y 80) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 80 y)), 15483#(and (<= y 82) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 82 y)), 15484#(and (<= 84 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 84)), 15485#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 15486#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 88) (<= 88 y)), 15487#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)))] [2018-07-23 13:51:32,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2850 backedges. 0 proven. 2850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:32,002 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:51:32,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:51:32,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=5853, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:32,002 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 78 states. [2018-07-23 13:51:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,663 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-07-23 13:51:32,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:51:32,663 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 77 [2018-07-23 13:51:32,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,664 INFO L225 Difference]: With dead ends: 80 [2018-07-23 13:51:32,664 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:51:32,665 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=5853, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:32,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:51:32,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:51:32,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:51:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-07-23 13:51:32,720 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-07-23 13:51:32,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,720 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-07-23 13:51:32,720 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:51:32,720 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-07-23 13:51:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:51:32,720 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,721 INFO L357 BasicCegarLoop]: trace histogram [76, 1, 1] [2018-07-23 13:51:32,721 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1255600313, now seen corresponding path program 76 times [2018-07-23 13:51:32,721 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:33,273 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:33,273 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:51:33,273 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:33,274 INFO L185 omatonBuilderFactory]: Interpolants [15872#(and (<= 68 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 68)), 15873#(and (<= 70 y) (<= y 70) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 15874#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 72) (<= 72 y)), 15875#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 74) (<= 74 y)), 15876#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 76) (<= 76 y)), 15877#(and (<= y 78) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 78 y)), 15878#(and (<= y 80) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 80 y)), 15879#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 82) (<= 82 y)), 15880#(and (<= 84 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 84)), 15881#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 15882#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 15883#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 90) (<= 90 y)), 15884#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 15885#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 15886#(and (<= 96 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 96)), 15887#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 15888#(and (<= 100 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 100)), 15889#(and (<= y 102) (<= 102 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 15890#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 104) (<= 104 y)), 15891#(and (<= 106 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 106)), 15892#(and (<= 108 y) (<= y 108) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 15893#(and (<= 110 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 110)), 15894#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 112) (<= 112 y)), 15895#(and (<= 114 y) (<= y 114) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 15896#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 116 y) (<= y 116)), 15897#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 118) (<= 118 y)), 15898#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 120) (<= 120 y)), 15899#(and (<= y 122) (<= 122 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 15900#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 124) (<= 124 y)), 15901#(and (<= y 126) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 126 y)), 15902#(and (<= 128 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 128)), 15903#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 15904#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 132) (<= 132 y)), 15905#(and (<= 134 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 134)), 15906#(and (<= 136 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 136)), 15907#(and (<= 138 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 138)), 15908#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 140 y) (<= y 140)), 15909#(and (<= 142 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 142)), 15910#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 15911#(and (<= y 146) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 146 y)), 15912#(and (<= 148 y) (<= y 148) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 15913#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 15914#(and (<= y 152) (<= 152 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 15915#(and (<= y 154) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 154 y)), 15916#(and (<= 156 y) (<= y 156) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 15917#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 158) (<= 158 y)), 15918#(and (<= 160 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 160)), 15919#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 15920#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 15921#(and (<= y 166) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 166 y)), 15922#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 168) (<= 168 y)), 15923#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 170) (<= 170 y)), 15924#(and (<= 172 y) (<= y 172) (or (<= 2 x) (<= x 0))), 15925#(and (<= 174 y) (or (<= 4 x) (<= x 2)) (<= y 174)), 15926#(and (or (<= x 4) (<= 6 x)) (<= y 176) (<= 176 y)), 15927#(and (<= y 178) (<= 178 y) (or (<= 8 x) (<= x 6))), 15928#(and (<= 180 y) (or (<= x 8) (<= 10 x)) (<= y 180)), 15929#(and (or (<= 12 x) (<= x 10)) (<= 182 y) (<= y 182)), 15930#(and (<= y 184) (<= 184 y) (or (<= 14 x) (<= x 12))), 15931#(and (<= 186 y) (or (<= x 14) (<= 16 x)) (<= y 186)), 15932#(and (or (<= 18 x) (<= x 16)) (<= y 188) (<= 188 y)), 15933#(and (or (<= 20 x) (<= x 18)) (<= 190 y) (<= y 190)), 15934#(and (or (<= 22 x) (<= x 20)) (<= 192 y) (<= y 192)), 15935#(and (<= y 194) (or (<= 24 x) (<= x 22)) (<= 194 y)), 15857#true, 15858#false, 15859#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 65)) (<= x (* 2 (div x 2))))), 15860#(and (<= 44 y) (<= y 44) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 15861#(and (<= 46 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 46)), 15862#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 48) (<= 48 y)), 15863#(and (<= y 50) (<= 50 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 15864#(and (<= 52 y) (<= y 52) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 15865#(and (<= 54 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 54)), 15866#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 56) (<= 56 y)), 15867#(and (<= 58 y) (<= y 58) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 15868#(and (<= 60 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 60)), 15869#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 62) (<= 62 y)), 15870#(and (<= y 64) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 64 y)), 15871#(and (<= 66 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 66))] [2018-07-23 13:51:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2926 backedges. 0 proven. 2926 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:33,274 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:51:33,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:51:33,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=6007, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:33,275 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 79 states. [2018-07-23 13:51:33,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:33,917 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:51:33,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:51:33,917 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 78 [2018-07-23 13:51:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:33,918 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:51:33,918 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:51:33,919 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=6007, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:51:33,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:51:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:51:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:51:33,975 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-07-23 13:51:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:33,975 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:51:33,975 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:51:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:51:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:51:33,976 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:33,976 INFO L357 BasicCegarLoop]: trace histogram [77, 1, 1] [2018-07-23 13:51:33,976 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:33,976 INFO L82 PathProgramCache]: Analyzing trace with hash -268904095, now seen corresponding path program 77 times [2018-07-23 13:51:33,976 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:34,617 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,617 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:51:34,617 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:34,618 INFO L185 omatonBuilderFactory]: Interpolants [16258#true, 16259#false, 16260#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 66)) (<= x (* 2 (div x 2))))), 16261#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 128)) (<= (+ x 130) 0))), 16262#(and (<= 46 y) (<= y 46) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 16263#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 16264#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 50) (<= 50 y)), 16265#(and (<= 52 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 52)), 16266#(and (<= 54 y) (<= y 54) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 16267#(and (<= y 56) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 56 y)), 16268#(and (<= 58 y) (<= y 58) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 16269#(and (<= 60 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 60)), 16270#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 62) (<= 62 y)), 16271#(and (<= y 64) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 64 y)), 16272#(and (<= 66 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 66)), 16273#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 68 y) (<= y 68)), 16274#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 70 y) (<= y 70)), 16275#(and (<= y 72) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 72 y)), 16276#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 74) (<= 74 y)), 16277#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 76) (<= 76 y)), 16278#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 78) (<= 78 y)), 16279#(and (<= y 80) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 80 y)), 16280#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 82) (<= 82 y)), 16281#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 84 y) (<= y 84)), 16282#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 16283#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 88) (<= 88 y)), 16284#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 16285#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 92 y) (<= y 92)), 16286#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 16287#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 16288#(and (<= y 98) (<= 98 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 16289#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 16290#(and (<= y 102) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 102 y)), 16291#(and (<= y 104) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 104 y)), 16292#(and (<= 106 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 106)), 16293#(and (<= 108 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 108)), 16294#(and (<= 110 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 110)), 16295#(and (<= y 112) (<= 112 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 16296#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 114 y) (<= y 114)), 16297#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 116 y) (<= y 116)), 16298#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 118) (<= 118 y)), 16299#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 120) (<= 120 y)), 16300#(and (<= y 122) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 122 y)), 16301#(and (<= y 124) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 124 y)), 16302#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 126) (<= 126 y)), 16303#(and (<= 128 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 128)), 16304#(and (<= y 130) (<= 130 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 16305#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 16306#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 134 y) (<= y 134)), 16307#(and (<= 136 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 136)), 16308#(and (<= 138 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 138)), 16309#(and (<= 140 y) (<= y 140) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 16310#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 142 y) (<= y 142)), 16311#(and (<= y 144) (<= 144 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 16312#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 146) (<= 146 y)), 16313#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 16314#(and (<= y 150) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 150 y)), 16315#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 16316#(and (<= y 154) (<= 154 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 16317#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 156 y) (<= y 156)), 16318#(and (<= y 158) (<= 158 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 16319#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 160 y) (<= y 160)), 16320#(and (<= y 162) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 162 y)), 16321#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 16322#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 16323#(and (<= y 168) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 168 y)), 16324#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 170) (<= 170 y)), 16325#(and (<= 172 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 172)), 16326#(and (<= 174 y) (<= y 174) (or (<= 2 x) (<= x 0))), 16327#(and (or (<= 4 x) (<= x 2)) (<= y 176) (<= 176 y)), 16328#(and (or (<= x 4) (<= 6 x)) (<= y 178) (<= 178 y)), 16329#(and (<= 180 y) (or (<= 8 x) (<= x 6)) (<= y 180)), 16330#(and (or (<= x 8) (<= 10 x)) (<= 182 y) (<= y 182)), 16331#(and (or (<= 12 x) (<= x 10)) (<= y 184) (<= 184 y)), 16332#(and (<= 186 y) (<= y 186) (or (<= 14 x) (<= x 12))), 16333#(and (or (<= x 14) (<= 16 x)) (<= y 188) (<= 188 y)), 16334#(and (or (<= 18 x) (<= x 16)) (<= 190 y) (<= y 190)), 16335#(and (<= 192 y) (or (<= 20 x) (<= x 18)) (<= y 192)), 16336#(and (<= y 194) (or (<= 22 x) (<= x 20)) (<= 194 y)), 16337#(and (or (<= 24 x) (<= x 22)) (<= y 196) (<= 196 y))] [2018-07-23 13:51:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 3003 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:34,619 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:51:34,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:51:34,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=6163, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:51:34,619 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 80 states. [2018-07-23 13:51:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:35,303 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-07-23 13:51:35,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:51:35,303 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 79 [2018-07-23 13:51:35,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:35,304 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:51:35,304 INFO L226 Difference]: Without dead ends: 81 [2018-07-23 13:51:35,305 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=6163, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:51:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-07-23 13:51:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-07-23 13:51:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:51:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-07-23 13:51:35,367 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-07-23 13:51:35,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:35,367 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-07-23 13:51:35,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:51:35,368 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-07-23 13:51:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:51:35,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:35,368 INFO L357 BasicCegarLoop]: trace histogram [78, 1, 1] [2018-07-23 13:51:35,368 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:35,369 INFO L82 PathProgramCache]: Analyzing trace with hash 253907591, now seen corresponding path program 78 times [2018-07-23 13:51:35,369 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:36,028 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:36,029 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:51:36,029 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:36,030 INFO L185 omatonBuilderFactory]: Interpolants [16664#true, 16665#false, 16666#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 67)) (<= x (* 2 (div x 2))))), 16667#(and (<= 44 y) (<= y 44) (or (<= (+ x 132) 0) (<= 0 (+ x 130)))), 16668#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 46 y) (<= y 46)), 16669#(and (<= y 48) (<= 48 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 16670#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 16671#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 52 y) (<= y 52)), 16672#(and (<= 54 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 54)), 16673#(and (<= y 56) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= 56 y)), 16674#(and (<= 58 y) (<= y 58) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 16675#(and (<= 60 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 60)), 16676#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 62) (<= 62 y)), 16677#(and (<= y 64) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 64 y)), 16678#(and (<= 66 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 66)), 16679#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 68 y) (<= y 68)), 16680#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 70 y) (<= y 70)), 16681#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 72) (<= 72 y)), 16682#(and (<= y 74) (<= 74 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 16683#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 76) (<= 76 y)), 16684#(and (<= y 78) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 78 y)), 16685#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 80) (<= 80 y)), 16686#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 82) (<= 82 y)), 16687#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 84 y) (<= y 84)), 16688#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 86 y) (<= y 86)), 16689#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 88) (<= 88 y)), 16690#(and (<= y 90) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 90 y)), 16691#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 16692#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 94 y) (<= y 94)), 16693#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 16694#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 16695#(and (<= 100 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 100)), 16696#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 16697#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 104) (<= 104 y)), 16698#(and (<= 106 y) (<= y 106) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 16699#(and (<= 108 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 108)), 16700#(and (<= 110 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 110)), 16701#(and (<= y 112) (<= 112 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 16702#(and (<= 114 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 114)), 16703#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 116 y) (<= y 116)), 16704#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 118) (<= 118 y)), 16705#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 120) (<= 120 y)), 16706#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 122) (<= 122 y)), 16707#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 124) (<= 124 y)), 16708#(and (<= y 126) (<= 126 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 16709#(and (<= 128 y) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 128)), 16710#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 16711#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 132) (<= 132 y)), 16712#(and (<= 134 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 134)), 16713#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 136 y) (<= y 136)), 16714#(and (<= 138 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 138)), 16715#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 16716#(and (<= 142 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 142)), 16717#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 144) (<= 144 y)), 16718#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 146) (<= 146 y)), 16719#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 16720#(and (<= y 150) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 150 y)), 16721#(and (<= y 152) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 152 y)), 16722#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 16723#(and (<= 156 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 156)), 16724#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 158) (<= 158 y)), 16725#(and (<= 160 y) (<= y 160) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 16726#(and (<= y 162) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 162 y)), 16727#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 164 y) (<= y 164)), 16728#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 16729#(and (<= y 168) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 168 y)), 16730#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 170) (<= 170 y)), 16731#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 172 y) (<= y 172)), 16732#(and (<= 174 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 174)), 16733#(and (<= y 176) (<= 176 y) (or (<= 2 x) (<= x 0))), 16734#(and (<= y 178) (<= 178 y) (or (<= 4 x) (<= x 2))), 16735#(and (or (<= x 4) (<= 6 x)) (<= 180 y) (<= y 180)), 16736#(and (<= 182 y) (or (<= 8 x) (<= x 6)) (<= y 182)), 16737#(and (<= y 184) (or (<= x 8) (<= 10 x)) (<= 184 y)), 16738#(and (or (<= 12 x) (<= x 10)) (<= 186 y) (<= y 186)), 16739#(and (<= y 188) (<= 188 y) (or (<= 14 x) (<= x 12))), 16740#(and (<= 190 y) (<= y 190) (or (<= x 14) (<= 16 x))), 16741#(and (or (<= 18 x) (<= x 16)) (<= 192 y) (<= y 192)), 16742#(and (<= y 194) (or (<= 20 x) (<= x 18)) (<= 194 y)), 16743#(and (or (<= 22 x) (<= x 20)) (<= y 196) (<= 196 y)), 16744#(and (or (<= 24 x) (<= x 22)) (<= 198 y) (<= y 198))] [2018-07-23 13:51:36,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3081 backedges. 0 proven. 3081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:36,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:51:36,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:51:36,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=6321, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:51:36,031 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 81 states. [2018-07-23 13:51:36,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:36,801 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:51:36,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:51:36,802 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 80 [2018-07-23 13:51:36,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:36,802 INFO L225 Difference]: With dead ends: 83 [2018-07-23 13:51:36,802 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:51:36,803 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=6321, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:51:36,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:51:36,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:51:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:51:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:51:36,871 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-07-23 13:51:36,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:36,871 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:51:36,871 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:51:36,871 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:51:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:51:36,872 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:36,872 INFO L357 BasicCegarLoop]: trace histogram [79, 1, 1] [2018-07-23 13:51:36,872 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:36,872 INFO L82 PathProgramCache]: Analyzing trace with hash -718799327, now seen corresponding path program 79 times [2018-07-23 13:51:36,873 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:37,496 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:37,496 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:51:37,497 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:37,497 INFO L185 omatonBuilderFactory]: Interpolants [17152#(and (<= 192 y) (or (<= x 14) (<= 16 x)) (<= y 192)), 17153#(and (<= y 194) (or (<= 18 x) (<= x 16)) (<= 194 y)), 17154#(and (<= y 196) (or (<= 20 x) (<= x 18)) (<= 196 y)), 17155#(and (or (<= 22 x) (<= x 20)) (<= 198 y) (<= y 198)), 17156#(and (<= 200 y) (or (<= 24 x) (<= x 22)) (<= y 200)), 17075#true, 17076#false, 17077#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 68)) (<= x (* 2 (div x 2))))), 17078#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 132)) (<= (+ x 134) 0))), 17079#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 46 y) (<= y 46)), 17080#(and (<= y 48) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 48 y)), 17081#(and (<= y 50) (<= 50 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 17082#(and (<= 52 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 52)), 17083#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 54 y) (<= y 54)), 17084#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 56) (<= 56 y)), 17085#(and (<= 58 y) (<= y 58) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 17086#(and (<= 60 y) (<= y 60) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 17087#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 62) (<= 62 y)), 17088#(and (<= y 64) (<= 64 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 17089#(and (<= 66 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 66)), 17090#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 68 y) (<= y 68)), 17091#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 70 y) (<= y 70)), 17092#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 72) (<= 72 y)), 17093#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 74) (<= 74 y)), 17094#(and (<= y 76) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 76 y)), 17095#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 78) (<= 78 y)), 17096#(and (<= y 80) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 80 y)), 17097#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 82) (<= 82 y)), 17098#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 84 y) (<= y 84)), 17099#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 86 y) (<= y 86)), 17100#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 88) (<= 88 y)), 17101#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 17102#(and (<= 92 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 92)), 17103#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 17104#(and (<= 96 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 96)), 17105#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 17106#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 17107#(and (<= y 102) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 102 y)), 17108#(and (<= y 104) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 104 y)), 17109#(and (<= 106 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 106)), 17110#(and (<= 108 y) (<= y 108) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 17111#(and (<= 110 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 110)), 17112#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 17113#(and (<= 114 y) (<= y 114) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 17114#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 116 y) (<= y 116)), 17115#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 118) (<= 118 y)), 17116#(and (<= y 120) (<= 120 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 17117#(and (<= y 122) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 122 y)), 17118#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 124) (<= 124 y)), 17119#(and (<= y 126) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 126 y)), 17120#(and (<= 128 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 128)), 17121#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 130) (<= 130 y)), 17122#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 132) (<= 132 y)), 17123#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 134 y) (<= y 134)), 17124#(and (<= 136 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 136)), 17125#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 138 y) (<= y 138)), 17126#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 17127#(and (<= 142 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 142)), 17128#(and (<= y 144) (<= 144 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 17129#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 146) (<= 146 y)), 17130#(and (<= 148 y) (<= y 148) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 17131#(and (<= y 150) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 150 y)), 17132#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 17133#(and (<= y 154) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 154 y)), 17134#(and (<= 156 y) (<= y 156) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 17135#(and (<= y 158) (<= 158 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 17136#(and (<= 160 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 160)), 17137#(and (<= y 162) (<= 162 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 17138#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 164 y) (<= y 164)), 17139#(and (<= y 166) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 166 y)), 17140#(and (<= y 168) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 168 y)), 17141#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 17142#(and (<= 172 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 172)), 17143#(and (<= 174 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 174)), 17144#(and (<= y 176) (or (<= (+ x 2) 0) (<= 0 x)) (<= 176 y)), 17145#(and (<= y 178) (<= 178 y) (or (<= 2 x) (<= x 0))), 17146#(and (<= 180 y) (or (<= 4 x) (<= x 2)) (<= y 180)), 17147#(and (or (<= x 4) (<= 6 x)) (<= 182 y) (<= y 182)), 17148#(and (<= y 184) (<= 184 y) (or (<= 8 x) (<= x 6))), 17149#(and (<= 186 y) (or (<= x 8) (<= 10 x)) (<= y 186)), 17150#(and (or (<= 12 x) (<= x 10)) (<= y 188) (<= 188 y)), 17151#(and (<= 190 y) (<= y 190) (or (<= 14 x) (<= x 12)))] [2018-07-23 13:51:37,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 0 proven. 3160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:37,498 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:51:37,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:51:37,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=6481, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:51:37,498 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 82 states. [2018-07-23 13:51:38,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:38,216 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-07-23 13:51:38,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:51:38,216 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 81 [2018-07-23 13:51:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:38,217 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:51:38,217 INFO L226 Difference]: Without dead ends: 83 [2018-07-23 13:51:38,218 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=161, Invalid=6481, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:51:38,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-07-23 13:51:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-07-23 13:51:38,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-07-23 13:51:38,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-07-23 13:51:38,288 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-07-23 13:51:38,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:38,289 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-07-23 13:51:38,289 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:51:38,289 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-07-23 13:51:38,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 13:51:38,290 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:38,290 INFO L357 BasicCegarLoop]: trace histogram [80, 1, 1] [2018-07-23 13:51:38,290 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:38,290 INFO L82 PathProgramCache]: Analyzing trace with hash -807942713, now seen corresponding path program 80 times [2018-07-23 13:51:38,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:38,922 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:38,922 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:51:38,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:38,923 INFO L185 omatonBuilderFactory]: Interpolants [17536#(and (<= 128 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 128)), 17537#(and (<= y 130) (<= 130 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 17538#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 132) (<= 132 y)), 17539#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 134 y) (<= y 134)), 17540#(and (<= 136 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 136)), 17541#(and (<= 138 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 138)), 17542#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 140 y) (<= y 140)), 17543#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 17544#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 17545#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 146) (<= 146 y)), 17546#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 148 y) (<= y 148)), 17547#(and (<= y 150) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 150 y)), 17548#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 17549#(and (<= y 154) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 154 y)), 17550#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 156 y) (<= y 156)), 17551#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 17552#(and (<= 160 y) (<= y 160) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 17553#(and (<= y 162) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 162 y)), 17554#(and (<= 164 y) (<= y 164) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 17555#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 166) (<= 166 y)), 17556#(and (<= y 168) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 168 y)), 17557#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 170) (<= 170 y)), 17558#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 17559#(and (<= 174 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 174)), 17560#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 176) (<= 176 y)), 17561#(and (<= y 178) (<= 178 y) (or (<= (+ x 2) 0) (<= 0 x))), 17562#(and (<= 180 y) (<= y 180) (or (<= 2 x) (<= x 0))), 17563#(and (or (<= 4 x) (<= x 2)) (<= 182 y) (<= y 182)), 17564#(and (or (<= x 4) (<= 6 x)) (<= y 184) (<= 184 y)), 17565#(and (<= 186 y) (or (<= 8 x) (<= x 6)) (<= y 186)), 17566#(and (or (<= x 8) (<= 10 x)) (<= y 188) (<= 188 y)), 17567#(and (or (<= 12 x) (<= x 10)) (<= 190 y) (<= y 190)), 17568#(and (<= 192 y) (<= y 192) (or (<= 14 x) (<= x 12))), 17569#(and (<= y 194) (or (<= x 14) (<= 16 x)) (<= 194 y)), 17570#(and (or (<= 18 x) (<= x 16)) (<= y 196) (<= 196 y)), 17571#(and (<= 198 y) (or (<= 20 x) (<= x 18)) (<= y 198)), 17572#(and (<= 200 y) (or (<= 22 x) (<= x 20)) (<= y 200)), 17573#(and (<= y 202) (or (<= 24 x) (<= x 22)) (<= 202 y)), 17491#true, 17492#false, 17493#(and (<= y 42) (<= 42 y) (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 69)))), 17494#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 17495#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 46 y) (<= y 46)), 17496#(and (<= y 48) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 48 y)), 17497#(and (<= y 50) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 50 y)), 17498#(and (<= 52 y) (<= y 52) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 17499#(and (<= 54 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 54)), 17500#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 56) (<= 56 y)), 17501#(and (<= 58 y) (<= y 58) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 17502#(and (<= 60 y) (<= y 60) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 17503#(and (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 62) (<= 62 y)), 17504#(and (<= y 64) (<= 64 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 17505#(and (<= 66 y) (<= y 66) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 17506#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 68 y) (<= y 68)), 17507#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 70 y) (<= y 70)), 17508#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 72) (<= 72 y)), 17509#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 74) (<= 74 y)), 17510#(and (<= y 76) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 76 y)), 17511#(and (<= y 78) (<= 78 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 17512#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 80) (<= 80 y)), 17513#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 82) (<= 82 y)), 17514#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 84 y) (<= y 84)), 17515#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 86 y) (<= y 86)), 17516#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 88) (<= 88 y)), 17517#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 90) (<= 90 y)), 17518#(and (<= 92 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 92)), 17519#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 17520#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 17521#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 98) (<= 98 y)), 17522#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 17523#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 17524#(and (<= y 104) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 104 y)), 17525#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 17526#(and (<= 108 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 108)), 17527#(and (<= 110 y) (<= y 110) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 17528#(and (<= y 112) (<= 112 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 17529#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 114 y) (<= y 114)), 17530#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 116 y) (<= y 116)), 17531#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 118) (<= 118 y)), 17532#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 120) (<= 120 y)), 17533#(and (<= y 122) (<= 122 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 17534#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 124) (<= 124 y)), 17535#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 126) (<= 126 y))] [2018-07-23 13:51:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 3240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:38,923 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:51:38,924 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:51:38,924 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=6643, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:51:38,924 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 83 states. [2018-07-23 13:51:39,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:39,640 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:51:39,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:51:39,640 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 82 [2018-07-23 13:51:39,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:39,640 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:51:39,641 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:51:39,641 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=6643, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:51:39,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:51:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:51:39,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:51:39,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:51:39,703 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-07-23 13:51:39,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:39,703 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:51:39,703 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:51:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:51:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:51:39,704 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:39,704 INFO L357 BasicCegarLoop]: trace histogram [81, 1, 1] [2018-07-23 13:51:39,704 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:39,705 INFO L82 PathProgramCache]: Analyzing trace with hash 723579617, now seen corresponding path program 81 times [2018-07-23 13:51:39,705 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,362 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,362 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:51:40,362 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,362 INFO L185 omatonBuilderFactory]: Interpolants [17920#(and (<= 54 y) (<= y 54) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 17921#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 56) (<= 56 y)), 17922#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 58 y) (<= y 58)), 17923#(and (<= 60 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 60)), 17924#(and (<= y 62) (<= 62 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 17925#(and (<= y 64) (<= 64 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 17926#(and (<= 66 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 66)), 17927#(and (<= 68 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 68)), 17928#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 70 y) (<= y 70)), 17929#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 72) (<= 72 y)), 17930#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 74) (<= 74 y)), 17931#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 76) (<= 76 y)), 17932#(and (<= y 78) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 78 y)), 17933#(and (<= y 80) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 80 y)), 17934#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 82) (<= 82 y)), 17935#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 84 y) (<= y 84)), 17936#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 86 y) (<= y 86)), 17937#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 88) (<= 88 y)), 17938#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 90) (<= 90 y)), 17939#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 92 y) (<= y 92)), 17940#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 17941#(and (<= 96 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 96)), 17942#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 17943#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 100 y) (<= y 100)), 17944#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 17945#(and (<= y 104) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 104 y)), 17946#(and (<= 106 y) (<= y 106) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 17947#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 17948#(and (<= 110 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 110)), 17949#(and (<= y 112) (<= 112 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 17950#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 114 y) (<= y 114)), 17951#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 116 y) (<= y 116)), 17952#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 118) (<= 118 y)), 17953#(and (<= y 120) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 120 y)), 17954#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 122) (<= 122 y)), 17955#(and (<= y 124) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 124 y)), 17956#(and (<= y 126) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 126 y)), 17957#(and (<= 128 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 128)), 17958#(and (<= y 130) (<= 130 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 17959#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 132) (<= 132 y)), 17960#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 134 y) (<= y 134)), 17961#(and (<= 136 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 136)), 17962#(and (<= 138 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 138)), 17963#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 17964#(and (<= 142 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 142)), 17965#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 17966#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 146) (<= 146 y)), 17967#(and (<= 148 y) (<= y 148) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 17968#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 150) (<= 150 y)), 17969#(and (<= y 152) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 152 y)), 17970#(and (<= y 154) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 154 y)), 17971#(and (<= 156 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 156)), 17972#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 158) (<= 158 y)), 17973#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 17974#(and (<= y 162) (<= 162 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 17975#(and (<= 164 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 164)), 17976#(and (<= y 166) (<= 166 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 17977#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 168) (<= 168 y)), 17978#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 170) (<= 170 y)), 17979#(and (<= 172 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 172)), 17980#(and (<= 174 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 174)), 17981#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 176) (<= 176 y)), 17982#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 178) (<= 178 y)), 17983#(and (<= 180 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 180)), 17984#(and (<= 182 y) (<= y 182) (or (<= 2 x) (<= x 0))), 17985#(and (<= y 184) (or (<= 4 x) (<= x 2)) (<= 184 y)), 17986#(and (or (<= x 4) (<= 6 x)) (<= 186 y) (<= y 186)), 17987#(and (or (<= 8 x) (<= x 6)) (<= y 188) (<= 188 y)), 17988#(and (or (<= x 8) (<= 10 x)) (<= 190 y) (<= y 190)), 17989#(and (or (<= 12 x) (<= x 10)) (<= 192 y) (<= y 192)), 17990#(and (<= y 194) (or (<= 14 x) (<= x 12)) (<= 194 y)), 17991#(and (<= y 196) (or (<= x 14) (<= 16 x)) (<= 196 y)), 17992#(and (or (<= 18 x) (<= x 16)) (<= 198 y) (<= y 198)), 17993#(and (<= 200 y) (or (<= 20 x) (<= x 18)) (<= y 200)), 17994#(and (<= y 202) (or (<= 22 x) (<= x 20)) (<= 202 y)), 17995#(and (or (<= 24 x) (<= x 22)) (<= 204 y) (<= y 204)), 17912#true, 17913#false, 17914#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 70)) (<= x (* 2 (div x 2))))), 17915#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 17916#(and (<= 46 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 46)), 17917#(and (<= y 48) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 48 y)), 17918#(and (<= y 50) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 50 y)), 17919#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 52 y) (<= y 52))] [2018-07-23 13:51:40,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3321 backedges. 0 proven. 3321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,363 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:51:40,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:51:40,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=6807, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:51:40,363 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 84 states. [2018-07-23 13:51:41,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,025 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-07-23 13:51:41,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:51:41,025 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 83 [2018-07-23 13:51:41,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,026 INFO L225 Difference]: With dead ends: 86 [2018-07-23 13:51:41,026 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:51:41,026 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=6807, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:51:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:51:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:51:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:51:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-07-23 13:51:41,094 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-07-23 13:51:41,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,094 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-07-23 13:51:41,094 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:51:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-07-23 13:51:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:51:41,095 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,095 INFO L357 BasicCegarLoop]: trace histogram [82, 1, 1] [2018-07-23 13:51:41,095 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,095 INFO L82 PathProgramCache]: Analyzing trace with hash 956131591, now seen corresponding path program 82 times [2018-07-23 13:51:41,096 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,779 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,779 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:51:41,780 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,780 INFO L185 omatonBuilderFactory]: Interpolants [18338#true, 18339#false, 18340#(and (<= y 42) (or (< 0 (+ (div x 2) 71)) (<= x (* 2 (div x 2)))) (<= 42 y)), 18341#(and (<= 44 y) (<= y 44) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 18342#(and (<= 46 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 46)), 18343#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 18344#(and (<= y 50) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 50 y)), 18345#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 52 y) (<= y 52)), 18346#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 54 y) (<= y 54)), 18347#(and (<= y 56) (or (<= (+ x 128) 0) (<= 0 (+ x 126))) (<= 56 y)), 18348#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 18349#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 60 y) (<= y 60)), 18350#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 62) (<= 62 y)), 18351#(and (<= y 64) (<= 64 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 18352#(and (<= 66 y) (<= y 66) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 18353#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 68 y) (<= y 68)), 18354#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 70 y) (<= y 70)), 18355#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 72) (<= 72 y)), 18356#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 74) (<= 74 y)), 18357#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 76) (<= 76 y)), 18358#(and (<= y 78) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 78 y)), 18359#(and (<= y 80) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 80 y)), 18360#(and (<= y 82) (<= 82 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 18361#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 84 y) (<= y 84)), 18362#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 86 y) (<= y 86)), 18363#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 88) (<= 88 y)), 18364#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 90) (<= 90 y)), 18365#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 92 y) (<= y 92)), 18366#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 94 y) (<= y 94)), 18367#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 18368#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 18369#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 18370#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 102) (<= 102 y)), 18371#(and (<= y 104) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 104 y)), 18372#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 18373#(and (<= 108 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 108)), 18374#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 18375#(and (<= y 112) (<= 112 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 18376#(and (<= 114 y) (<= y 114) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 18377#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 116 y) (<= y 116)), 18378#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 118) (<= 118 y)), 18379#(and (<= y 120) (<= 120 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 18380#(and (<= y 122) (<= 122 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 18381#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 124) (<= 124 y)), 18382#(and (<= y 126) (<= 126 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 18383#(and (<= 128 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 128)), 18384#(and (<= y 130) (<= 130 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52)))), 18385#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 132) (<= 132 y)), 18386#(and (<= 134 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 134)), 18387#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 136 y) (<= y 136)), 18388#(and (<= 138 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 138)), 18389#(and (<= 140 y) (<= y 140) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 18390#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 18391#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 144) (<= 144 y)), 18392#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 18393#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 18394#(and (<= y 150) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 150 y)), 18395#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 152) (<= 152 y)), 18396#(and (<= y 154) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 154 y)), 18397#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 156 y) (<= y 156)), 18398#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 158) (<= 158 y)), 18399#(and (<= 160 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 160)), 18400#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 18401#(and (<= 164 y) (<= y 164) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 18402#(and (<= y 166) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 166 y)), 18403#(and (<= y 168) (<= 168 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 18404#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 170) (<= 170 y)), 18405#(and (<= 172 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 172)), 18406#(and (<= 174 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 174)), 18407#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 18408#(and (<= y 178) (<= 178 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 18409#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 180 y) (<= y 180)), 18410#(and (<= 182 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 182)), 18411#(and (<= y 184) (<= 184 y) (or (<= 2 x) (<= x 0))), 18412#(and (<= 186 y) (or (<= 4 x) (<= x 2)) (<= y 186)), 18413#(and (or (<= x 4) (<= 6 x)) (<= y 188) (<= 188 y)), 18414#(and (<= 190 y) (<= y 190) (or (<= 8 x) (<= x 6))), 18415#(and (or (<= x 8) (<= 10 x)) (<= 192 y) (<= y 192)), 18416#(and (or (<= 12 x) (<= x 10)) (<= y 194) (<= 194 y)), 18417#(and (<= y 196) (or (<= 14 x) (<= x 12)) (<= 196 y)), 18418#(and (<= 198 y) (<= y 198) (or (<= x 14) (<= 16 x))), 18419#(and (<= 200 y) (or (<= 18 x) (<= x 16)) (<= y 200)), 18420#(and (<= y 202) (<= 202 y) (or (<= 20 x) (<= x 18))), 18421#(and (or (<= 22 x) (<= x 20)) (<= 204 y) (<= y 204)), 18422#(and (or (<= 24 x) (<= x 22)) (<= y 206) (<= 206 y))] [2018-07-23 13:51:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3403 backedges. 0 proven. 3403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,781 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:51:41,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:51:41,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=6973, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:51:41,781 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 85 states. [2018-07-23 13:51:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,528 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:51:42,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:51:42,528 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 84 [2018-07-23 13:51:42,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,529 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:51:42,529 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:51:42,530 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=167, Invalid=6973, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:51:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:51:42,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:51:42,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:51:42,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:51:42,594 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-07-23 13:51:42,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,594 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:51:42,594 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:51:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:51:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:51:42,595 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,595 INFO L357 BasicCegarLoop]: trace histogram [83, 1, 1] [2018-07-23 13:51:42,595 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,595 INFO L82 PathProgramCache]: Analyzing trace with hash -424691807, now seen corresponding path program 83 times [2018-07-23 13:51:42,595 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,313 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,313 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:51:43,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,314 INFO L185 omatonBuilderFactory]: Interpolants [18816#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 132) (<= 132 y)), 18817#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 134 y) (<= y 134)), 18818#(and (<= 136 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 136)), 18819#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 138 y) (<= y 138)), 18820#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 140 y) (<= y 140)), 18821#(and (<= 142 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 142)), 18822#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 18823#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 146) (<= 146 y)), 18824#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 18825#(and (<= y 150) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 150 y)), 18826#(and (<= y 152) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 152 y)), 18827#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 154) (<= 154 y)), 18828#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 156 y) (<= y 156)), 18829#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 158) (<= 158 y)), 18830#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 18831#(and (<= y 162) (<= 162 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 18832#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 18833#(and (<= y 166) (<= 166 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 18834#(and (<= y 168) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 168 y)), 18835#(and (<= y 170) (<= 170 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 18836#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 172 y) (<= y 172)), 18837#(and (<= 174 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 174)), 18838#(and (<= y 176) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 176 y)), 18839#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 18840#(and (<= 180 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 180)), 18841#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 182 y) (<= y 182)), 18842#(and (<= y 184) (<= 184 y) (or (<= (+ x 2) 0) (<= 0 x))), 18843#(and (<= 186 y) (<= y 186) (or (<= 2 x) (<= x 0))), 18844#(and (or (<= 4 x) (<= x 2)) (<= y 188) (<= 188 y)), 18845#(and (or (<= x 4) (<= 6 x)) (<= 190 y) (<= y 190)), 18846#(and (<= 192 y) (or (<= 8 x) (<= x 6)) (<= y 192)), 18847#(and (<= y 194) (or (<= x 8) (<= 10 x)) (<= 194 y)), 18848#(and (or (<= 12 x) (<= x 10)) (<= y 196) (<= 196 y)), 18849#(and (<= 198 y) (<= y 198) (or (<= 14 x) (<= x 12))), 18850#(and (<= 200 y) (or (<= x 14) (<= 16 x)) (<= y 200)), 18851#(and (<= y 202) (or (<= 18 x) (<= x 16)) (<= 202 y)), 18852#(and (<= 204 y) (<= y 204) (or (<= 20 x) (<= x 18))), 18853#(and (or (<= 22 x) (<= x 20)) (<= y 206) (<= 206 y)), 18854#(and (or (<= 24 x) (<= x 22)) (<= 208 y) (<= y 208)), 18769#true, 18770#false, 18771#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 72)) (<= x (* 2 (div x 2))))), 18772#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 140)) (<= (+ x 142) 0))), 18773#(and (<= 46 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 46)), 18774#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 18775#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 18776#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 52 y) (<= y 52)), 18777#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 54 y) (<= y 54)), 18778#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 56) (<= 56 y)), 18779#(and (<= 58 y) (<= y 58) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 18780#(and (<= 60 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 60)), 18781#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 62) (<= 62 y)), 18782#(and (<= y 64) (<= 64 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 18783#(and (<= 66 y) (<= y 66) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 18784#(and (<= 68 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 68)), 18785#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 70 y) (<= y 70)), 18786#(and (<= y 72) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 72 y)), 18787#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 74) (<= 74 y)), 18788#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 76) (<= 76 y)), 18789#(and (<= y 78) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 78 y)), 18790#(and (<= y 80) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 80 y)), 18791#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 82) (<= 82 y)), 18792#(and (<= 84 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 84)), 18793#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 86 y) (<= y 86)), 18794#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 88) (<= 88 y)), 18795#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 90) (<= 90 y)), 18796#(and (<= 92 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 92)), 18797#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 94 y) (<= y 94)), 18798#(and (<= 96 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 96)), 18799#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 18800#(and (<= 100 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 100)), 18801#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 18802#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 104) (<= 104 y)), 18803#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 18804#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 18805#(and (<= 110 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 110)), 18806#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 18807#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 114 y) (<= y 114)), 18808#(and (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 116 y) (<= y 116)), 18809#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 118) (<= 118 y)), 18810#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 120) (<= 120 y)), 18811#(and (<= y 122) (<= 122 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 18812#(and (<= y 124) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 124 y)), 18813#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 126) (<= 126 y)), 18814#(and (<= 128 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 128)), 18815#(and (<= y 130) (<= 130 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))))] [2018-07-23 13:51:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 0 proven. 3486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,314 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:51:43,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:51:43,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=7141, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:51:43,315 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 86 states. [2018-07-23 13:51:44,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,196 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-07-23 13:51:44,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:51:44,196 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 85 [2018-07-23 13:51:44,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,197 INFO L225 Difference]: With dead ends: 88 [2018-07-23 13:51:44,197 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 13:51:44,198 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=7141, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:51:44,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 13:51:44,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-07-23 13:51:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:51:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-07-23 13:51:44,294 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-07-23 13:51:44,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,295 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-07-23 13:51:44,295 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:51:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-07-23 13:51:44,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:51:44,296 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,296 INFO L357 BasicCegarLoop]: trace histogram [84, 1, 1] [2018-07-23 13:51:44,296 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,296 INFO L82 PathProgramCache]: Analyzing trace with hash -280544185, now seen corresponding path program 84 times [2018-07-23 13:51:44,296 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,124 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,125 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:51:45,125 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,125 INFO L185 omatonBuilderFactory]: Interpolants [19205#true, 19206#false, 19207#(and (or (< 0 (+ (div x 2) 73)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 19208#(and (<= 44 y) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 44)), 19209#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 46 y) (<= y 46)), 19210#(and (<= y 48) (<= 48 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 19211#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 19212#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 19213#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 54 y) (<= y 54)), 19214#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 56) (<= 56 y)), 19215#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 58 y) (<= y 58)), 19216#(and (<= 60 y) (<= y 60) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 19217#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 62) (<= 62 y)), 19218#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 64) (<= 64 y)), 19219#(and (<= 66 y) (<= y 66) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 19220#(and (<= 68 y) (<= y 68) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 19221#(and (<= 70 y) (<= y 70) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 19222#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 72) (<= 72 y)), 19223#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 74) (<= 74 y)), 19224#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 76) (<= 76 y)), 19225#(and (<= y 78) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 78 y)), 19226#(and (<= y 80) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 80 y)), 19227#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 82) (<= 82 y)), 19228#(and (<= 84 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 84)), 19229#(and (<= 86 y) (<= y 86) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 19230#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 88) (<= 88 y)), 19231#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 90) (<= 90 y)), 19232#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 92 y) (<= y 92)), 19233#(and (<= 94 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 94)), 19234#(and (<= 96 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 96)), 19235#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 98) (<= 98 y)), 19236#(and (<= 100 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 100)), 19237#(and (<= y 102) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 102 y)), 19238#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 19239#(and (<= 106 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 106)), 19240#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 19241#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 19242#(and (<= y 112) (<= 112 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 19243#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 19244#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 116 y) (<= y 116)), 19245#(and (<= y 118) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 118 y)), 19246#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 120) (<= 120 y)), 19247#(and (<= y 122) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 122 y)), 19248#(and (<= y 124) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 124 y)), 19249#(and (<= y 126) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 126 y)), 19250#(and (<= 128 y) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 128)), 19251#(and (<= y 130) (<= 130 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 19252#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 132) (<= 132 y)), 19253#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 134 y) (<= y 134)), 19254#(and (<= 136 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 136)), 19255#(and (<= 138 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 138)), 19256#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 140 y) (<= y 140)), 19257#(and (<= 142 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 142)), 19258#(and (<= y 144) (<= 144 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 19259#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 19260#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 148 y) (<= y 148)), 19261#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 19262#(and (<= y 152) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 152 y)), 19263#(and (<= y 154) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 154 y)), 19264#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 156 y) (<= y 156)), 19265#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 158) (<= 158 y)), 19266#(and (<= 160 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 160)), 19267#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 19268#(and (<= 164 y) (<= y 164) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 19269#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 19270#(and (<= y 168) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 168 y)), 19271#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 170) (<= 170 y)), 19272#(and (<= 172 y) (<= y 172) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 19273#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 174 y) (<= y 174)), 19274#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 176) (<= 176 y)), 19275#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 19276#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 19277#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 182 y) (<= y 182)), 19278#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 184) (<= 184 y)), 19279#(and (<= 186 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 186)), 19280#(and (<= y 188) (<= 188 y) (or (<= 2 x) (<= x 0))), 19281#(and (or (<= 4 x) (<= x 2)) (<= 190 y) (<= y 190)), 19282#(and (or (<= x 4) (<= 6 x)) (<= 192 y) (<= y 192)), 19283#(and (<= y 194) (or (<= 8 x) (<= x 6)) (<= 194 y)), 19284#(and (<= y 196) (or (<= x 8) (<= 10 x)) (<= 196 y)), 19285#(and (or (<= 12 x) (<= x 10)) (<= 198 y) (<= y 198)), 19286#(and (<= 200 y) (or (<= 14 x) (<= x 12)) (<= y 200)), 19287#(and (<= y 202) (<= 202 y) (or (<= x 14) (<= 16 x))), 19288#(and (or (<= 18 x) (<= x 16)) (<= 204 y) (<= y 204)), 19289#(and (<= y 206) (<= 206 y) (or (<= 20 x) (<= x 18))), 19290#(and (or (<= 22 x) (<= x 20)) (<= 208 y) (<= y 208)), 19291#(and (<= 210 y) (or (<= 24 x) (<= x 22)) (<= y 210))] [2018-07-23 13:51:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3570 backedges. 0 proven. 3570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,126 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:51:45,126 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:51:45,127 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=7311, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:51:45,127 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 87 states. [2018-07-23 13:51:45,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,894 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:51:45,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:51:45,894 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 86 [2018-07-23 13:51:45,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,895 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:51:45,895 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:51:45,895 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=7311, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:51:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:51:45,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:51:45,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:51:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:51:45,963 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-07-23 13:51:45,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,963 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:51:45,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:51:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:51:45,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:51:45,964 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,964 INFO L357 BasicCegarLoop]: trace histogram [85, 1, 1] [2018-07-23 13:51:45,965 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash -106935199, now seen corresponding path program 85 times [2018-07-23 13:51:45,965 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,680 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,681 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:51:46,681 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,681 INFO L185 omatonBuilderFactory]: Interpolants [19712#(and (<= y 170) (<= 170 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 19713#(and (<= 172 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 172)), 19714#(and (<= 174 y) (<= y 174) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 19715#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 176) (<= 176 y)), 19716#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 19717#(and (<= 180 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 180)), 19718#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 19719#(and (<= y 184) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 184 y)), 19720#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 186 y) (<= y 186)), 19721#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 188) (<= 188 y)), 19722#(and (<= 190 y) (<= y 190) (or (<= 2 x) (<= x 0))), 19723#(and (or (<= 4 x) (<= x 2)) (<= 192 y) (<= y 192)), 19724#(and (or (<= x 4) (<= 6 x)) (<= y 194) (<= 194 y)), 19725#(and (<= y 196) (or (<= 8 x) (<= x 6)) (<= 196 y)), 19726#(and (<= 198 y) (or (<= x 8) (<= 10 x)) (<= y 198)), 19727#(and (or (<= 12 x) (<= x 10)) (<= 200 y) (<= y 200)), 19728#(and (<= y 202) (<= 202 y) (or (<= 14 x) (<= x 12))), 19729#(and (<= 204 y) (<= y 204) (or (<= x 14) (<= 16 x))), 19730#(and (<= y 206) (or (<= 18 x) (<= x 16)) (<= 206 y)), 19731#(and (or (<= 20 x) (<= x 18)) (<= 208 y) (<= y 208)), 19732#(and (<= 210 y) (or (<= 22 x) (<= x 20)) (<= y 210)), 19733#(and (<= 212 y) (or (<= 24 x) (<= x 22)) (<= y 212)), 19646#true, 19647#false, 19648#(and (<= y 42) (or (< 0 (+ (div x 2) 74)) (<= x (* 2 (div x 2)))) (<= 42 y)), 19649#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 19650#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 46 y) (<= y 46)), 19651#(and (<= y 48) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 48 y)), 19652#(and (<= y 50) (<= 50 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 19653#(and (<= 52 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 52)), 19654#(and (<= 54 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 54)), 19655#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 56) (<= 56 y)), 19656#(and (<= 58 y) (<= y 58) (or (<= (+ x 132) 0) (<= 0 (+ x 130)))), 19657#(and (<= 60 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 60)), 19658#(and (<= y 62) (<= 62 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 19659#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 19660#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 66 y) (<= y 66)), 19661#(and (<= 68 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 68)), 19662#(and (<= 70 y) (<= y 70) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 19663#(and (<= y 72) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 72 y)), 19664#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 74) (<= 74 y)), 19665#(and (<= y 76) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 76 y)), 19666#(and (<= y 78) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 78 y)), 19667#(and (<= y 80) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 80 y)), 19668#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 82) (<= 82 y)), 19669#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 84 y) (<= y 84)), 19670#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 19671#(and (<= y 88) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 88 y)), 19672#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 90) (<= 90 y)), 19673#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 92 y) (<= y 92)), 19674#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 94 y) (<= y 94)), 19675#(and (<= 96 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 96)), 19676#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 98) (<= 98 y)), 19677#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 100 y) (<= y 100)), 19678#(and (<= y 102) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 102 y)), 19679#(and (<= y 104) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 104 y)), 19680#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 19681#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 108 y) (<= y 108)), 19682#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 19683#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 19684#(and (<= 114 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 114)), 19685#(and (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 116 y) (<= y 116)), 19686#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 118) (<= 118 y)), 19687#(and (<= y 120) (<= 120 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 19688#(and (<= y 122) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 122 y)), 19689#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 124) (<= 124 y)), 19690#(and (<= y 126) (<= 126 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 19691#(and (<= 128 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 128)), 19692#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 130) (<= 130 y)), 19693#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 132) (<= 132 y)), 19694#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 134 y) (<= y 134)), 19695#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 136 y) (<= y 136)), 19696#(and (<= 138 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 138)), 19697#(and (<= 140 y) (<= y 140) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 19698#(and (<= 142 y) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 142)), 19699#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 19700#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 146) (<= 146 y)), 19701#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 19702#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 150) (<= 150 y)), 19703#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 19704#(and (<= y 154) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 154 y)), 19705#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 156 y) (<= y 156)), 19706#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 158) (<= 158 y)), 19707#(and (<= 160 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 160)), 19708#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 19709#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 19710#(and (<= y 166) (<= 166 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 19711#(and (<= y 168) (<= 168 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)))] [2018-07-23 13:51:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,682 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:51:46,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:51:46,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:51:46,683 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 88 states. [2018-07-23 13:51:47,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,500 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-07-23 13:51:47,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:51:47,500 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 87 [2018-07-23 13:51:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,501 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:51:47,501 INFO L226 Difference]: Without dead ends: 89 [2018-07-23 13:51:47,502 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=173, Invalid=7483, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:51:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-07-23 13:51:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-07-23 13:51:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 13:51:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-07-23 13:51:47,571 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-07-23 13:51:47,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,572 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-07-23 13:51:47,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:51:47,572 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-07-23 13:51:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 13:51:47,572 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,573 INFO L357 BasicCegarLoop]: trace histogram [86, 1, 1] [2018-07-23 13:51:47,573 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,573 INFO L82 PathProgramCache]: Analyzing trace with hash 979976071, now seen corresponding path program 86 times [2018-07-23 13:51:47,573 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,321 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,321 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:51:48,321 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,322 INFO L185 omatonBuilderFactory]: Interpolants [20096#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 20097#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 48) (<= 48 y)), 20098#(and (<= y 50) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 50 y)), 20099#(and (<= 52 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 52)), 20100#(and (<= 54 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 54)), 20101#(and (<= y 56) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 56 y)), 20102#(and (<= 58 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 58)), 20103#(and (<= 60 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 60)), 20104#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 62) (<= 62 y)), 20105#(and (<= y 64) (<= 64 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 20106#(and (<= 66 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 66)), 20107#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 68 y) (<= y 68)), 20108#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 70 y) (<= y 70)), 20109#(and (<= y 72) (<= 72 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 20110#(and (<= y 74) (<= 74 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 20111#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 76) (<= 76 y)), 20112#(and (<= y 78) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 78 y)), 20113#(and (<= y 80) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 80 y)), 20114#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 82) (<= 82 y)), 20115#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 84 y) (<= y 84)), 20116#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 86 y) (<= y 86)), 20117#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 88) (<= 88 y)), 20118#(and (<= y 90) (<= 90 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 20119#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 92 y) (<= y 92)), 20120#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 94 y) (<= y 94)), 20121#(and (<= 96 y) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 96)), 20122#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 98) (<= 98 y)), 20123#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 100 y) (<= y 100)), 20124#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 102) (<= 102 y)), 20125#(and (<= y 104) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 104 y)), 20126#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 20127#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 20128#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 110 y) (<= y 110)), 20129#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 20130#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 20131#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 116 y) (<= y 116)), 20132#(and (<= y 118) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 118 y)), 20133#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 120) (<= 120 y)), 20134#(and (<= y 122) (<= 122 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 20135#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 124) (<= 124 y)), 20136#(and (<= y 126) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 126 y)), 20137#(and (<= 128 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 128)), 20138#(and (<= y 130) (<= 130 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 20139#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 132) (<= 132 y)), 20140#(and (<= 134 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 134)), 20141#(and (<= 136 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 136)), 20142#(and (<= 138 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 138)), 20143#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 140 y) (<= y 140)), 20144#(and (<= 142 y) (<= y 142) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 20145#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 144) (<= 144 y)), 20146#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 146) (<= 146 y)), 20147#(and (<= 148 y) (<= y 148) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 20148#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 20149#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 152) (<= 152 y)), 20150#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 20151#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 156 y) (<= y 156)), 20152#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 158) (<= 158 y)), 20153#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 160 y) (<= y 160)), 20154#(and (<= y 162) (<= 162 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 20155#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 20156#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 20157#(and (<= y 168) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 168 y)), 20158#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 20159#(and (<= 172 y) (<= y 172) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 20160#(and (<= 174 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 174)), 20161#(and (<= y 176) (<= 176 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 20162#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 178) (<= 178 y)), 20163#(and (<= 180 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 180)), 20164#(and (<= 182 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 182)), 20165#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 20166#(and (<= 186 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 186)), 20167#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 188) (<= 188 y)), 20168#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 190 y) (<= y 190)), 20169#(and (<= 192 y) (<= y 192) (or (<= 2 x) (<= x 0))), 20170#(and (<= y 194) (or (<= 4 x) (<= x 2)) (<= 194 y)), 20171#(and (or (<= x 4) (<= 6 x)) (<= y 196) (<= 196 y)), 20172#(and (<= 198 y) (<= y 198) (or (<= 8 x) (<= x 6))), 20173#(and (<= 200 y) (or (<= x 8) (<= 10 x)) (<= y 200)), 20174#(and (or (<= 12 x) (<= x 10)) (<= y 202) (<= 202 y)), 20175#(and (<= 204 y) (<= y 204) (or (<= 14 x) (<= x 12))), 20176#(and (<= y 206) (<= 206 y) (or (<= x 14) (<= 16 x))), 20177#(and (or (<= 18 x) (<= x 16)) (<= 208 y) (<= y 208)), 20178#(and (<= 210 y) (or (<= 20 x) (<= x 18)) (<= y 210)), 20179#(and (<= 212 y) (or (<= 22 x) (<= x 20)) (<= y 212)), 20180#(and (or (<= 24 x) (<= x 22)) (<= y 214) (<= 214 y)), 20092#true, 20093#false, 20094#(and (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 75))) (<= y 42) (<= 42 y)), 20095#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)))] [2018-07-23 13:51:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3741 backedges. 0 proven. 3741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,322 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:51:48,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:51:48,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=7657, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:51:48,323 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 89 states. [2018-07-23 13:51:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,113 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:51:49,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:51:49,113 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 88 [2018-07-23 13:51:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,114 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:51:49,114 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:51:49,114 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=7657, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:51:49,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:51:49,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:51:49,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:51:49,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:51:49,184 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-07-23 13:51:49,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,185 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:51:49,185 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:51:49,185 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:51:49,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:51:49,185 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,185 INFO L357 BasicCegarLoop]: trace histogram [87, 1, 1] [2018-07-23 13:51:49,185 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,186 INFO L82 PathProgramCache]: Analyzing trace with hash 314487073, now seen corresponding path program 87 times [2018-07-23 13:51:49,186 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,909 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,909 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:51:49,909 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,910 INFO L185 omatonBuilderFactory]: Interpolants [20608#(and (<= y 168) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 168 y)), 20609#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 170) (<= 170 y)), 20610#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 20611#(and (<= 174 y) (<= y 174) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 20612#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 176) (<= 176 y)), 20613#(and (<= y 178) (<= 178 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 20614#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 180 y) (<= y 180)), 20615#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 182 y) (<= y 182)), 20616#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 20617#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 20618#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 188) (<= 188 y)), 20619#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 190 y) (<= y 190)), 20620#(and (<= 192 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 192)), 20621#(and (<= y 194) (or (<= 2 x) (<= x 0)) (<= 194 y)), 20622#(and (<= y 196) (or (<= 4 x) (<= x 2)) (<= 196 y)), 20623#(and (or (<= x 4) (<= 6 x)) (<= 198 y) (<= y 198)), 20624#(and (<= 200 y) (or (<= 8 x) (<= x 6)) (<= y 200)), 20625#(and (<= y 202) (<= 202 y) (or (<= x 8) (<= 10 x))), 20626#(and (or (<= 12 x) (<= x 10)) (<= 204 y) (<= y 204)), 20627#(and (<= y 206) (<= 206 y) (or (<= 14 x) (<= x 12))), 20628#(and (<= 208 y) (or (<= x 14) (<= 16 x)) (<= y 208)), 20629#(and (<= 210 y) (or (<= 18 x) (<= x 16)) (<= y 210)), 20630#(and (<= 212 y) (<= y 212) (or (<= 20 x) (<= x 18))), 20631#(and (or (<= 22 x) (<= x 20)) (<= y 214) (<= 214 y)), 20632#(and (or (<= 24 x) (<= x 22)) (<= y 216) (<= 216 y)), 20543#true, 20544#false, 20545#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 76)) (<= x (* 2 (div x 2))))), 20546#(and (<= 44 y) (<= y 44) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 20547#(and (<= 46 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 46)), 20548#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 20549#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 50) (<= 50 y)), 20550#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 52 y) (<= y 52)), 20551#(and (<= 54 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 54)), 20552#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 56) (<= 56 y)), 20553#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 20554#(and (<= 60 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 60)), 20555#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 62) (<= 62 y)), 20556#(and (<= y 64) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 64 y)), 20557#(and (<= 66 y) (<= y 66) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 20558#(and (<= 68 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 68)), 20559#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 70 y) (<= y 70)), 20560#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 72) (<= 72 y)), 20561#(and (<= y 74) (<= 74 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 20562#(and (<= y 76) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 76 y)), 20563#(and (<= y 78) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 78 y)), 20564#(and (<= y 80) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 80 y)), 20565#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 82) (<= 82 y)), 20566#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 84 y) (<= y 84)), 20567#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 86 y) (<= y 86)), 20568#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 88) (<= 88 y)), 20569#(and (<= y 90) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 90 y)), 20570#(and (<= 92 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 92)), 20571#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 94 y) (<= y 94)), 20572#(and (<= 96 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 96)), 20573#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 98) (<= 98 y)), 20574#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 100 y) (<= y 100)), 20575#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 102) (<= 102 y)), 20576#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 104) (<= 104 y)), 20577#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 20578#(and (<= 108 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 108)), 20579#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 20580#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 112) (<= 112 y)), 20581#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 20582#(and (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 116 y) (<= y 116)), 20583#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 118) (<= 118 y)), 20584#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 20585#(and (<= y 122) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 122 y)), 20586#(and (<= y 124) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 124 y)), 20587#(and (<= y 126) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 126 y)), 20588#(and (<= 128 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 128)), 20589#(and (<= y 130) (<= 130 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 20590#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 132) (<= 132 y)), 20591#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 134 y) (<= y 134)), 20592#(and (<= 136 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 136)), 20593#(and (<= 138 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 138)), 20594#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 140 y) (<= y 140)), 20595#(and (<= 142 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 142)), 20596#(and (<= y 144) (<= 144 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 20597#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 146) (<= 146 y)), 20598#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 20599#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 150) (<= 150 y)), 20600#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 20601#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 154) (<= 154 y)), 20602#(and (<= 156 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 156)), 20603#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 158) (<= 158 y)), 20604#(and (<= 160 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 160)), 20605#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 162) (<= 162 y)), 20606#(and (<= 164 y) (<= y 164) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 20607#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)))] [2018-07-23 13:51:49,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 0 proven. 3828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,911 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:51:49,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:51:49,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=7833, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:51:49,911 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 90 states. [2018-07-23 13:51:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,758 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-07-23 13:51:50,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:51:50,758 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 89 [2018-07-23 13:51:50,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,759 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:51:50,759 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:51:50,760 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=7833, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:51:50,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:51:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:51:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:51:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-07-23 13:51:50,847 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-07-23 13:51:50,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,847 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-07-23 13:51:50,847 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:51:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-07-23 13:51:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:51:50,848 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,848 INFO L357 BasicCegarLoop]: trace histogram [88, 1, 1] [2018-07-23 13:51:50,848 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1159164615, now seen corresponding path program 88 times [2018-07-23 13:51:50,848 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,647 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:51,647 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:51:51,647 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,648 INFO L185 omatonBuilderFactory]: Interpolants [20999#true, 21000#false, 21001#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 77)) (<= x (* 2 (div x 2))))), 21002#(and (<= 44 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 44)), 21003#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 46 y) (<= y 46)), 21004#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 21005#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 21006#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 52 y) (<= y 52)), 21007#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 54 y) (<= y 54)), 21008#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 56) (<= 56 y)), 21009#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 21010#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 21011#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 62) (<= 62 y)), 21012#(and (<= y 64) (<= 64 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130)))), 21013#(and (<= 66 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 66)), 21014#(and (<= 68 y) (<= y 68) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 21015#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 70 y) (<= y 70)), 21016#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 72) (<= 72 y)), 21017#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 74) (<= 74 y)), 21018#(and (<= y 76) (<= 76 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 21019#(and (<= y 78) (<= 78 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 21020#(and (<= y 80) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 80 y)), 21021#(and (<= y 82) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 82 y)), 21022#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 84 y) (<= y 84)), 21023#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 86 y) (<= y 86)), 21024#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 88) (<= 88 y)), 21025#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 90) (<= 90 y)), 21026#(and (<= 92 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 92)), 21027#(and (<= 94 y) (<= y 94) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 21028#(and (<= 96 y) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 96)), 21029#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 98) (<= 98 y)), 21030#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 100 y) (<= y 100)), 21031#(and (<= y 102) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 102 y)), 21032#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 104) (<= 104 y)), 21033#(and (<= 106 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 106)), 21034#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 21035#(and (<= 110 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 110)), 21036#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 21037#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 114 y) (<= y 114)), 21038#(and (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 116 y) (<= y 116)), 21039#(and (<= y 118) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 118 y)), 21040#(and (<= y 120) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 120 y)), 21041#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 21042#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 124) (<= 124 y)), 21043#(and (<= y 126) (<= 126 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 21044#(and (<= 128 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 128)), 21045#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 21046#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 132) (<= 132 y)), 21047#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 134 y) (<= y 134)), 21048#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 136 y) (<= y 136)), 21049#(and (<= 138 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 138)), 21050#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 140 y) (<= y 140)), 21051#(and (<= 142 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 142)), 21052#(and (<= y 144) (<= 144 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 21053#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 146) (<= 146 y)), 21054#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 148 y) (<= y 148)), 21055#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 150) (<= 150 y)), 21056#(and (<= y 152) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 152 y)), 21057#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 21058#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 156 y) (<= y 156)), 21059#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 21060#(and (<= 160 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 160)), 21061#(and (<= y 162) (<= 162 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 21062#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 164 y) (<= y 164)), 21063#(and (<= y 166) (<= 166 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 21064#(and (<= y 168) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 168 y)), 21065#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 170) (<= 170 y)), 21066#(and (<= 172 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 172)), 21067#(and (<= 174 y) (<= y 174) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 21068#(and (<= y 176) (<= 176 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 21069#(and (<= y 178) (<= 178 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 21070#(and (<= 180 y) (<= y 180) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 21071#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 182 y) (<= y 182)), 21072#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 184) (<= 184 y)), 21073#(and (<= 186 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 186)), 21074#(and (<= y 188) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 188 y)), 21075#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 190 y) (<= y 190)), 21076#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 192 y) (<= y 192)), 21077#(and (<= y 194) (or (<= (+ x 2) 0) (<= 0 x)) (<= 194 y)), 21078#(and (<= y 196) (or (<= 2 x) (<= x 0)) (<= 196 y)), 21079#(and (<= 198 y) (or (<= 4 x) (<= x 2)) (<= y 198)), 21080#(and (or (<= x 4) (<= 6 x)) (<= 200 y) (<= y 200)), 21081#(and (<= y 202) (<= 202 y) (or (<= 8 x) (<= x 6))), 21082#(and (<= 204 y) (<= y 204) (or (<= x 8) (<= 10 x))), 21083#(and (or (<= 12 x) (<= x 10)) (<= y 206) (<= 206 y)), 21084#(and (<= 208 y) (or (<= 14 x) (<= x 12)) (<= y 208)), 21085#(and (<= 210 y) (<= y 210) (or (<= x 14) (<= 16 x))), 21086#(and (<= 212 y) (or (<= 18 x) (<= x 16)) (<= y 212)), 21087#(and (<= y 214) (or (<= 20 x) (<= x 18)) (<= 214 y)), 21088#(and (or (<= 22 x) (<= x 20)) (<= y 216) (<= 216 y)), 21089#(and (<= y 218) (or (<= 24 x) (<= x 22)) (<= 218 y))] [2018-07-23 13:51:51,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3916 backedges. 0 proven. 3916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,648 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:51:51,648 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:51:51,649 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=8011, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:51:51,649 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 91 states. [2018-07-23 13:51:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,593 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:51:52,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:51:52,594 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 90 [2018-07-23 13:51:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,594 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:51:52,594 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:51:52,595 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=179, Invalid=8011, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:51:52,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:51:52,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:51:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:51:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:51:52,680 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-07-23 13:51:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,680 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:51:52,680 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:51:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:51:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:51:52,680 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,681 INFO L357 BasicCegarLoop]: trace histogram [89, 1, 1] [2018-07-23 13:51:52,681 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1574364641, now seen corresponding path program 89 times [2018-07-23 13:51:52,681 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,466 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,466 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:51:53,466 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,467 INFO L185 omatonBuilderFactory]: Interpolants [21504#(and (<= y 126) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 126 y)), 21505#(and (<= 128 y) (<= y 128) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 21506#(and (<= y 130) (<= 130 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 21507#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 132) (<= 132 y)), 21508#(and (<= 134 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 134)), 21509#(and (<= 136 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 136)), 21510#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 138 y) (<= y 138)), 21511#(and (<= 140 y) (<= y 140) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 21512#(and (<= 142 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 142)), 21513#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 144) (<= 144 y)), 21514#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 146) (<= 146 y)), 21515#(and (<= 148 y) (<= y 148) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 21516#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 150) (<= 150 y)), 21517#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 152) (<= 152 y)), 21518#(and (<= y 154) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 154 y)), 21519#(and (<= 156 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 156)), 21520#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 158) (<= 158 y)), 21521#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 21522#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 21523#(and (<= 164 y) (<= y 164) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 21524#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 166) (<= 166 y)), 21525#(and (<= y 168) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 168 y)), 21526#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 170) (<= 170 y)), 21527#(and (<= 172 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 172)), 21528#(and (<= 174 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 174)), 21529#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 21530#(and (<= y 178) (<= 178 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 21531#(and (<= 180 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 180)), 21532#(and (<= 182 y) (<= y 182) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 21533#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 184) (<= 184 y)), 21534#(and (<= 186 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 186)), 21535#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 188) (<= 188 y)), 21536#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 21537#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 192 y) (<= y 192)), 21538#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 194) (<= 194 y)), 21539#(and (<= y 196) (or (<= (+ x 2) 0) (<= 0 x)) (<= 196 y)), 21540#(and (<= 198 y) (<= y 198) (or (<= 2 x) (<= x 0))), 21541#(and (<= 200 y) (or (<= 4 x) (<= x 2)) (<= y 200)), 21542#(and (or (<= x 4) (<= 6 x)) (<= y 202) (<= 202 y)), 21543#(and (<= 204 y) (<= y 204) (or (<= 8 x) (<= x 6))), 21544#(and (<= y 206) (or (<= x 8) (<= 10 x)) (<= 206 y)), 21545#(and (or (<= 12 x) (<= x 10)) (<= 208 y) (<= y 208)), 21546#(and (<= 210 y) (<= y 210) (or (<= 14 x) (<= x 12))), 21547#(and (<= 212 y) (<= y 212) (or (<= x 14) (<= 16 x))), 21548#(and (or (<= 18 x) (<= x 16)) (<= y 214) (<= 214 y)), 21549#(and (or (<= 20 x) (<= x 18)) (<= y 216) (<= 216 y)), 21550#(and (<= y 218) (or (<= 22 x) (<= x 20)) (<= 218 y)), 21551#(and (or (<= 24 x) (<= x 22)) (<= 220 y) (<= y 220)), 21460#true, 21461#false, 21462#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 78)) (<= x (* 2 (div x 2))))), 21463#(and (<= 44 y) (<= y 44) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 21464#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 46 y) (<= y 46)), 21465#(and (<= y 48) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 48 y)), 21466#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 21467#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 21468#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 54 y) (<= y 54)), 21469#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 56) (<= 56 y)), 21470#(and (<= 58 y) (<= y 58) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 21471#(and (<= 60 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 60)), 21472#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 62) (<= 62 y)), 21473#(and (<= y 64) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 64 y)), 21474#(and (<= 66 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 66)), 21475#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 68 y) (<= y 68)), 21476#(and (<= 70 y) (<= y 70) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 21477#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 72) (<= 72 y)), 21478#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 74) (<= 74 y)), 21479#(and (<= y 76) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 76 y)), 21480#(and (<= y 78) (<= 78 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 21481#(and (<= y 80) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 80 y)), 21482#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 82) (<= 82 y)), 21483#(and (<= 84 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 84)), 21484#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 86 y) (<= y 86)), 21485#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 88) (<= 88 y)), 21486#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 90) (<= 90 y)), 21487#(and (<= 92 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 92)), 21488#(and (<= 94 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 94)), 21489#(and (<= 96 y) (<= y 96) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 21490#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 98) (<= 98 y)), 21491#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 100 y) (<= y 100)), 21492#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 102) (<= 102 y)), 21493#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 104) (<= 104 y)), 21494#(and (<= 106 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 106)), 21495#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 108 y) (<= y 108)), 21496#(and (<= 110 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 110)), 21497#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 21498#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 21499#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 116 y) (<= y 116)), 21500#(and (<= y 118) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 118 y)), 21501#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 21502#(and (<= y 122) (<= 122 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 21503#(and (<= y 124) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 124 y))] [2018-07-23 13:51:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,467 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:51:53,468 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:51:53,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=8191, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:51:53,468 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 92 states. [2018-07-23 13:51:54,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,267 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-07-23 13:51:54,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:51:54,267 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 91 [2018-07-23 13:51:54,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,268 INFO L225 Difference]: With dead ends: 94 [2018-07-23 13:51:54,268 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 13:51:54,268 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=8191, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:51:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 13:51:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-07-23 13:51:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:51:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-07-23 13:51:54,343 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-07-23 13:51:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,344 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-07-23 13:51:54,344 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:51:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-07-23 13:51:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:51:54,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,344 INFO L357 BasicCegarLoop]: trace histogram [90, 1, 1] [2018-07-23 13:51:54,344 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1560663559, now seen corresponding path program 90 times [2018-07-23 13:51:54,345 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,139 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,139 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:51:55,139 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,140 INFO L185 omatonBuilderFactory]: Interpolants [22016#(and (<= y 218) (or (<= 20 x) (<= x 18)) (<= 218 y)), 22017#(and (or (<= 22 x) (<= x 20)) (<= 220 y) (<= y 220)), 22018#(and (<= y 222) (<= 222 y) (or (<= 24 x) (<= x 22))), 21926#true, 21927#false, 21928#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 79)) (<= x (* 2 (div x 2))))), 21929#(and (<= 44 y) (<= y 44) (or (<= (+ x 156) 0) (<= 0 (+ x 154)))), 21930#(and (<= 46 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 46)), 21931#(and (<= y 48) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 48 y)), 21932#(and (<= y 50) (<= 50 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 21933#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 21934#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 21935#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 56) (<= 56 y)), 21936#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 140)) (<= (+ x 142) 0))), 21937#(and (<= 60 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 60)), 21938#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 62) (<= 62 y)), 21939#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 21940#(and (<= 66 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 66)), 21941#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 68 y) (<= y 68)), 21942#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 70 y) (<= y 70)), 21943#(and (<= y 72) (<= 72 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 21944#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 74) (<= 74 y)), 21945#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 76) (<= 76 y)), 21946#(and (<= y 78) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 78 y)), 21947#(and (<= y 80) (<= 80 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 21948#(and (<= y 82) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 82 y)), 21949#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 84 y) (<= y 84)), 21950#(and (<= 86 y) (<= y 86) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 21951#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 88) (<= 88 y)), 21952#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 90) (<= 90 y)), 21953#(and (<= 92 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 92)), 21954#(and (<= 94 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 94)), 21955#(and (<= 96 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 96)), 21956#(and (<= y 98) (<= 98 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 21957#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 100 y) (<= y 100)), 21958#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 102) (<= 102 y)), 21959#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 104) (<= 104 y)), 21960#(and (<= 106 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 106)), 21961#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 108 y) (<= y 108)), 21962#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 110 y) (<= y 110)), 21963#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 21964#(and (<= 114 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 114)), 21965#(and (<= 116 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= y 116)), 21966#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 118) (<= 118 y)), 21967#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 21968#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 21969#(and (<= y 124) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 124 y)), 21970#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 21971#(and (<= 128 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 128)), 21972#(and (<= y 130) (<= 130 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 21973#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 132) (<= 132 y)), 21974#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 134 y) (<= y 134)), 21975#(and (<= 136 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 136)), 21976#(and (<= 138 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 138)), 21977#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 140 y) (<= y 140)), 21978#(and (<= 142 y) (<= y 142) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 21979#(and (<= y 144) (<= 144 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 21980#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 146) (<= 146 y)), 21981#(and (<= 148 y) (<= y 148) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 21982#(and (<= y 150) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 150 y)), 21983#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 152) (<= 152 y)), 21984#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 154) (<= 154 y)), 21985#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 156 y) (<= y 156)), 21986#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 21987#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 160 y) (<= y 160)), 21988#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 21989#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 21990#(and (<= y 166) (<= 166 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 21991#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 168) (<= 168 y)), 21992#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 170) (<= 170 y)), 21993#(and (<= 172 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 172)), 21994#(and (<= 174 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 174)), 21995#(and (<= y 176) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 176 y)), 21996#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 21997#(and (<= 180 y) (<= y 180) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 21998#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 182 y) (<= y 182)), 21999#(and (<= y 184) (<= 184 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 22000#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 186 y) (<= y 186)), 22001#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 188) (<= 188 y)), 22002#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 190 y) (<= y 190)), 22003#(and (<= 192 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 192)), 22004#(and (<= y 194) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 194 y)), 22005#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 196) (<= 196 y)), 22006#(and (<= 198 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 198)), 22007#(and (<= 200 y) (or (<= 2 x) (<= x 0)) (<= y 200)), 22008#(and (<= y 202) (<= 202 y) (or (<= 4 x) (<= x 2))), 22009#(and (or (<= x 4) (<= 6 x)) (<= 204 y) (<= y 204)), 22010#(and (<= y 206) (<= 206 y) (or (<= 8 x) (<= x 6))), 22011#(and (or (<= x 8) (<= 10 x)) (<= 208 y) (<= y 208)), 22012#(and (<= 210 y) (or (<= 12 x) (<= x 10)) (<= y 210)), 22013#(and (<= 212 y) (<= y 212) (or (<= 14 x) (<= x 12))), 22014#(and (<= y 214) (or (<= x 14) (<= 16 x)) (<= 214 y)), 22015#(and (or (<= 18 x) (<= x 16)) (<= y 216) (<= 216 y))] [2018-07-23 13:51:55,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4095 backedges. 0 proven. 4095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:51:55,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:51:55,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=8373, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:51:55,141 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 93 states. [2018-07-23 13:51:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,047 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:51:56,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:51:56,047 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 92 [2018-07-23 13:51:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,048 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:51:56,048 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:51:56,049 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=183, Invalid=8373, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:51:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:51:56,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:51:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:51:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:51:56,126 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-07-23 13:51:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,126 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:51:56,126 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:51:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:51:56,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:51:56,127 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,127 INFO L357 BasicCegarLoop]: trace histogram [91, 1, 1] [2018-07-23 13:51:56,127 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1135930017, now seen corresponding path program 91 times [2018-07-23 13:51:56,127 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,931 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,931 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:51:56,931 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,932 INFO L185 omatonBuilderFactory]: Interpolants [22400#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 22401#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 46 y) (<= y 46)), 22402#(and (<= y 48) (<= 48 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 22403#(and (<= y 50) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 50 y)), 22404#(and (<= 52 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 52)), 22405#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 22406#(and (<= y 56) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)) (<= 56 y)), 22407#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 58 y) (<= y 58)), 22408#(and (<= 60 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 60)), 22409#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 62) (<= 62 y)), 22410#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 22411#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 22412#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 68 y) (<= y 68)), 22413#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 70 y) (<= y 70)), 22414#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 72) (<= 72 y)), 22415#(and (<= y 74) (<= 74 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 22416#(and (<= y 76) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 76 y)), 22417#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 78) (<= 78 y)), 22418#(and (<= y 80) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 80 y)), 22419#(and (<= y 82) (<= 82 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 22420#(and (<= 84 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 84)), 22421#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 86 y) (<= y 86)), 22422#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 88) (<= 88 y)), 22423#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 90) (<= 90 y)), 22424#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 92 y) (<= y 92)), 22425#(and (<= 94 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 94)), 22426#(and (<= 96 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 96)), 22427#(and (<= y 98) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 98 y)), 22428#(and (<= 100 y) (<= y 100) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 22429#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 102) (<= 102 y)), 22430#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 104) (<= 104 y)), 22431#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 106 y) (<= y 106)), 22432#(and (<= 108 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 108)), 22433#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 110 y) (<= y 110)), 22434#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 112) (<= 112 y)), 22435#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 22436#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 116 y) (<= y 116)), 22437#(and (<= y 118) (<= 118 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 22438#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 120) (<= 120 y)), 22439#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 22440#(and (<= y 124) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 124 y)), 22441#(and (<= y 126) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 126 y)), 22442#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 22443#(and (<= y 130) (<= 130 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 22444#(and (<= y 132) (<= 132 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 22445#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 134 y) (<= y 134)), 22446#(and (<= 136 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 136)), 22447#(and (<= 138 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 138)), 22448#(and (<= 140 y) (<= y 140) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 22449#(and (<= 142 y) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 142)), 22450#(and (<= y 144) (<= 144 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 22451#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 146) (<= 146 y)), 22452#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 148 y) (<= y 148)), 22453#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 150) (<= 150 y)), 22454#(and (<= y 152) (<= 152 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 22455#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 154) (<= 154 y)), 22456#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 156 y) (<= y 156)), 22457#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 158) (<= 158 y)), 22458#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 22459#(and (<= y 162) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 162 y)), 22460#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 22461#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 22462#(and (<= y 168) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 168 y)), 22463#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 170) (<= 170 y)), 22464#(and (<= 172 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 172)), 22465#(and (<= 174 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 174)), 22466#(and (<= y 176) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 176 y)), 22467#(and (<= y 178) (<= 178 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 22468#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 22469#(and (<= 182 y) (<= y 182) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 22470#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 184) (<= 184 y)), 22471#(and (<= 186 y) (<= y 186) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 22472#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 188) (<= 188 y)), 22473#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 190 y) (<= y 190)), 22474#(and (<= 192 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 192)), 22475#(and (<= y 194) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 194 y)), 22476#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 196) (<= 196 y)), 22477#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 198 y) (<= y 198)), 22478#(and (<= 200 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 200)), 22479#(and (<= y 202) (<= 202 y) (or (<= 2 x) (<= x 0))), 22480#(and (<= 204 y) (<= y 204) (or (<= 4 x) (<= x 2))), 22481#(and (or (<= x 4) (<= 6 x)) (<= y 206) (<= 206 y)), 22482#(and (<= 208 y) (or (<= 8 x) (<= x 6)) (<= y 208)), 22483#(and (<= 210 y) (or (<= x 8) (<= 10 x)) (<= y 210)), 22484#(and (or (<= 12 x) (<= x 10)) (<= 212 y) (<= y 212)), 22485#(and (<= y 214) (<= 214 y) (or (<= 14 x) (<= x 12))), 22486#(and (<= y 216) (or (<= x 14) (<= 16 x)) (<= 216 y)), 22487#(and (<= y 218) (or (<= 18 x) (<= x 16)) (<= 218 y)), 22488#(and (or (<= 20 x) (<= x 18)) (<= 220 y) (<= y 220)), 22489#(and (<= y 222) (<= 222 y) (or (<= 22 x) (<= x 20))), 22490#(and (<= 224 y) (or (<= 24 x) (<= x 22)) (<= y 224)), 22397#true, 22398#false, 22399#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 80)) (<= x (* 2 (div x 2)))))] [2018-07-23 13:51:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,932 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:51:56,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:51:56,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=8557, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:51:56,933 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 94 states. [2018-07-23 13:51:57,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,840 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-07-23 13:51:57,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:51:57,840 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 93 [2018-07-23 13:51:57,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,841 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:51:57,841 INFO L226 Difference]: Without dead ends: 95 [2018-07-23 13:51:57,842 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=185, Invalid=8557, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:51:57,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-07-23 13:51:57,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-07-23 13:51:57,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 13:51:57,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-07-23 13:51:57,938 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-07-23 13:51:57,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,939 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-07-23 13:51:57,939 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:51:57,939 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-07-23 13:51:57,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 13:51:57,939 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,939 INFO L357 BasicCegarLoop]: trace histogram [92, 1, 1] [2018-07-23 13:51:57,939 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,939 INFO L82 PathProgramCache]: Analyzing trace with hash 854092103, now seen corresponding path program 92 times [2018-07-23 13:51:57,940 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,745 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:51:58,745 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,746 INFO L185 omatonBuilderFactory]: Interpolants [22912#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 116 y) (<= y 116)), 22913#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 118) (<= 118 y)), 22914#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 22915#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 122) (<= 122 y)), 22916#(and (<= y 124) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 124 y)), 22917#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 22918#(and (<= 128 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 128)), 22919#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 22920#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 132) (<= 132 y)), 22921#(and (<= 134 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 134)), 22922#(and (<= 136 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 136)), 22923#(and (<= 138 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 138)), 22924#(and (<= 140 y) (<= y 140) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 22925#(and (<= 142 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 142)), 22926#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 144) (<= 144 y)), 22927#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 146) (<= 146 y)), 22928#(and (<= 148 y) (<= y 148) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 22929#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 150) (<= 150 y)), 22930#(and (<= y 152) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 152 y)), 22931#(and (<= y 154) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 154 y)), 22932#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 156 y) (<= y 156)), 22933#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 158) (<= 158 y)), 22934#(and (<= 160 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 160)), 22935#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 22936#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 164 y) (<= y 164)), 22937#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 22938#(and (<= y 168) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 168 y)), 22939#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 170) (<= 170 y)), 22940#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 172 y) (<= y 172)), 22941#(and (<= 174 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 174)), 22942#(and (<= y 176) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 176 y)), 22943#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 22944#(and (<= 180 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 180)), 22945#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 22946#(and (<= y 184) (<= 184 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 22947#(and (<= 186 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 186)), 22948#(and (<= y 188) (<= 188 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 22949#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 190 y) (<= y 190)), 22950#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 192 y) (<= y 192)), 22951#(and (<= y 194) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 194 y)), 22952#(and (<= y 196) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 196 y)), 22953#(and (<= 198 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 198)), 22954#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 200 y) (<= y 200)), 22955#(and (<= y 202) (<= 202 y) (or (<= (+ x 2) 0) (<= 0 x))), 22956#(and (<= 204 y) (<= y 204) (or (<= 2 x) (<= x 0))), 22957#(and (<= y 206) (or (<= 4 x) (<= x 2)) (<= 206 y)), 22958#(and (or (<= x 4) (<= 6 x)) (<= 208 y) (<= y 208)), 22959#(and (<= 210 y) (<= y 210) (or (<= 8 x) (<= x 6))), 22960#(and (<= 212 y) (<= y 212) (or (<= x 8) (<= 10 x))), 22961#(and (or (<= 12 x) (<= x 10)) (<= y 214) (<= 214 y)), 22962#(and (<= y 216) (or (<= 14 x) (<= x 12)) (<= 216 y)), 22963#(and (<= y 218) (or (<= x 14) (<= 16 x)) (<= 218 y)), 22964#(and (or (<= 18 x) (<= x 16)) (<= 220 y) (<= y 220)), 22965#(and (<= y 222) (<= 222 y) (or (<= 20 x) (<= x 18))), 22966#(and (<= 224 y) (or (<= 22 x) (<= x 20)) (<= y 224)), 22967#(and (<= 226 y) (or (<= 24 x) (<= x 22)) (<= y 226)), 22873#true, 22874#false, 22875#(and (or (< 0 (+ (div x 2) 81)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 22876#(and (<= 44 y) (<= y 44) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 22877#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 46 y) (<= y 46)), 22878#(and (<= y 48) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 48 y)), 22879#(and (<= y 50) (<= 50 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 22880#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 52 y) (<= y 52)), 22881#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 54 y) (<= y 54)), 22882#(and (<= y 56) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 56 y)), 22883#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 22884#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 60 y) (<= y 60)), 22885#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 62) (<= 62 y)), 22886#(and (<= y 64) (<= 64 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 22887#(and (<= 66 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 66)), 22888#(and (<= 68 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 68)), 22889#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 70 y) (<= y 70)), 22890#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 72) (<= 72 y)), 22891#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 74) (<= 74 y)), 22892#(and (<= y 76) (<= 76 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 22893#(and (<= y 78) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 78 y)), 22894#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 80) (<= 80 y)), 22895#(and (<= y 82) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 82 y)), 22896#(and (<= 84 y) (<= y 84) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 22897#(and (<= 86 y) (<= y 86) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 22898#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 88) (<= 88 y)), 22899#(and (<= y 90) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 90 y)), 22900#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 92 y) (<= y 92)), 22901#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 94 y) (<= y 94)), 22902#(and (<= 96 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 96)), 22903#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 98) (<= 98 y)), 22904#(and (<= 100 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 100)), 22905#(and (<= y 102) (<= 102 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 22906#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 104) (<= 104 y)), 22907#(and (<= 106 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 106)), 22908#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 108 y) (<= y 108)), 22909#(and (<= 110 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 110)), 22910#(and (<= y 112) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 112 y)), 22911#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 114 y) (<= y 114))] [2018-07-23 13:51:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4278 backedges. 0 proven. 4278 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,747 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:51:58,747 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:51:58,747 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=8743, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:51:58,747 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 95 states. [2018-07-23 13:51:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,741 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:51:59,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:51:59,741 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 94 [2018-07-23 13:51:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,742 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:51:59,742 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:51:59,743 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=8743, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:51:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:51:59,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:51:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:51:59,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:51:59,861 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-07-23 13:51:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,861 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:51:59,861 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:51:59,862 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:51:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:51:59,862 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,862 INFO L357 BasicCegarLoop]: trace histogram [93, 1, 1] [2018-07-23 13:51:59,863 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,863 INFO L82 PathProgramCache]: Analyzing trace with hash 707051361, now seen corresponding path program 93 times [2018-07-23 13:51:59,863 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,009 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,009 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:52:01,009 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,010 INFO L185 omatonBuilderFactory]: Interpolants [23424#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 23425#(and (<= 180 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 180)), 23426#(and (<= 182 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 182)), 23427#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 23428#(and (<= 186 y) (<= y 186) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 23429#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 188) (<= 188 y)), 23430#(and (<= 190 y) (<= y 190) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 23431#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 192 y) (<= y 192)), 23432#(and (<= y 194) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 194 y)), 23433#(and (<= y 196) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 196 y)), 23434#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 23435#(and (<= 200 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 200)), 23436#(and (<= y 202) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 202 y)), 23437#(and (<= 204 y) (<= y 204) (or (<= (+ x 2) 0) (<= 0 x))), 23438#(and (<= y 206) (<= 206 y) (or (<= 2 x) (<= x 0))), 23439#(and (or (<= 4 x) (<= x 2)) (<= 208 y) (<= y 208)), 23440#(and (<= 210 y) (or (<= x 4) (<= 6 x)) (<= y 210)), 23441#(and (<= 212 y) (<= y 212) (or (<= 8 x) (<= x 6))), 23442#(and (or (<= x 8) (<= 10 x)) (<= y 214) (<= 214 y)), 23443#(and (or (<= 12 x) (<= x 10)) (<= y 216) (<= 216 y)), 23444#(and (<= y 218) (<= 218 y) (or (<= 14 x) (<= x 12))), 23445#(and (or (<= x 14) (<= 16 x)) (<= 220 y) (<= y 220)), 23446#(and (<= y 222) (<= 222 y) (or (<= 18 x) (<= x 16))), 23447#(and (<= 224 y) (<= y 224) (or (<= 20 x) (<= x 18))), 23448#(and (<= 226 y) (or (<= 22 x) (<= x 20)) (<= y 226)), 23449#(and (or (<= 24 x) (<= x 22)) (<= y 228) (<= 228 y)), 23354#true, 23355#false, 23356#(and (or (< 0 (+ (div x 2) 82)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 23357#(and (<= 44 y) (<= y 44) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 23358#(and (<= 46 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 46)), 23359#(and (<= y 48) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 48 y)), 23360#(and (<= y 50) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 50 y)), 23361#(and (<= 52 y) (<= y 52) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 23362#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 54 y) (<= y 54)), 23363#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 56) (<= 56 y)), 23364#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 23365#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 23366#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 62) (<= 62 y)), 23367#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0))), 23368#(and (<= 66 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 66)), 23369#(and (<= 68 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 68)), 23370#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 23371#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 72) (<= 72 y)), 23372#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 74) (<= 74 y)), 23373#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 76) (<= 76 y)), 23374#(and (<= y 78) (<= 78 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 23375#(and (<= y 80) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 80 y)), 23376#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 82) (<= 82 y)), 23377#(and (<= 84 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 84)), 23378#(and (<= 86 y) (<= y 86) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 23379#(and (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 88) (<= 88 y)), 23380#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 90) (<= 90 y)), 23381#(and (<= 92 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 92)), 23382#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 94 y) (<= y 94)), 23383#(and (<= 96 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 96)), 23384#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 98) (<= 98 y)), 23385#(and (<= 100 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 100)), 23386#(and (<= y 102) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 102 y)), 23387#(and (<= y 104) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 104 y)), 23388#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 106 y) (<= y 106)), 23389#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 108 y) (<= y 108)), 23390#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 110 y) (<= y 110)), 23391#(and (<= y 112) (<= 112 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 23392#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 114 y) (<= y 114)), 23393#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 116 y) (<= y 116)), 23394#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 118) (<= 118 y)), 23395#(and (<= y 120) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 120 y)), 23396#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 23397#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 124) (<= 124 y)), 23398#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 23399#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 23400#(and (<= y 130) (<= 130 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 23401#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 23402#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 134 y) (<= y 134)), 23403#(and (<= 136 y) (<= y 136) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 23404#(and (<= 138 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 138)), 23405#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 140 y) (<= y 140)), 23406#(and (<= 142 y) (<= y 142) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 23407#(and (<= y 144) (<= 144 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 23408#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 146) (<= 146 y)), 23409#(and (<= 148 y) (<= y 148) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 23410#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 150) (<= 150 y)), 23411#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 152) (<= 152 y)), 23412#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 154) (<= 154 y)), 23413#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 156 y) (<= y 156)), 23414#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 158) (<= 158 y)), 23415#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 160 y) (<= y 160)), 23416#(and (<= y 162) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 162 y)), 23417#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 23418#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 166) (<= 166 y)), 23419#(and (<= y 168) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 168 y)), 23420#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 170) (<= 170 y)), 23421#(and (<= 172 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 172)), 23422#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 174 y) (<= y 174)), 23423#(and (<= y 176) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 176 y))] [2018-07-23 13:52:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4371 backedges. 0 proven. 4371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,010 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:52:01,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:52:01,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=8931, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:52:01,011 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 96 states. [2018-07-23 13:52:01,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,925 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-07-23 13:52:01,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:52:01,925 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 95 [2018-07-23 13:52:01,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,926 INFO L225 Difference]: With dead ends: 98 [2018-07-23 13:52:01,926 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:52:01,927 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=189, Invalid=8931, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:52:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:52:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:52:02,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:52:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-07-23 13:52:02,011 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-07-23 13:52:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,011 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-07-23 13:52:02,011 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:52:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-07-23 13:52:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:52:02,012 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,012 INFO L357 BasicCegarLoop]: trace histogram [94, 1, 1] [2018-07-23 13:52:02,012 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,012 INFO L82 PathProgramCache]: Analyzing trace with hash 443755655, now seen corresponding path program 94 times [2018-07-23 13:52:02,012 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,856 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:52:02,857 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,857 INFO L185 omatonBuilderFactory]: Interpolants [23840#true, 23841#false, 23842#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 83)) (<= x (* 2 (div x 2))))), 23843#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 23844#(and (<= 46 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= y 46)), 23845#(and (<= y 48) (<= 48 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 23846#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 23847#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 52 y) (<= y 52)), 23848#(and (<= 54 y) (<= y 54) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 23849#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 56) (<= 56 y)), 23850#(and (<= 58 y) (<= y 58) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 23851#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 23852#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 23853#(and (<= y 64) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 64 y)), 23854#(and (<= 66 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 66)), 23855#(and (<= 68 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 68)), 23856#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 70 y) (<= y 70)), 23857#(and (<= y 72) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 72 y)), 23858#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 74) (<= 74 y)), 23859#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 76) (<= 76 y)), 23860#(and (<= y 78) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 78 y)), 23861#(and (<= y 80) (<= 80 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 23862#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 82) (<= 82 y)), 23863#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 84 y) (<= y 84)), 23864#(and (<= 86 y) (<= y 86) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 23865#(and (<= y 88) (<= 88 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 23866#(and (<= y 90) (<= 90 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 23867#(and (<= 92 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 92)), 23868#(and (<= 94 y) (<= y 94) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 23869#(and (<= 96 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 96)), 23870#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 98) (<= 98 y)), 23871#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 100 y) (<= y 100)), 23872#(and (<= y 102) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 102 y)), 23873#(and (<= y 104) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 104 y)), 23874#(and (<= 106 y) (<= y 106) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 23875#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 108 y) (<= y 108)), 23876#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 110 y) (<= y 110)), 23877#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 112) (<= 112 y)), 23878#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 114 y) (<= y 114)), 23879#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 116 y) (<= y 116)), 23880#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 118) (<= 118 y)), 23881#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 23882#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 23883#(and (<= y 124) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= 124 y)), 23884#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 126) (<= 126 y)), 23885#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 23886#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 23887#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 132) (<= 132 y)), 23888#(and (<= 134 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 134)), 23889#(and (<= 136 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 136)), 23890#(and (<= 138 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 138)), 23891#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 140 y) (<= y 140)), 23892#(and (<= 142 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 142)), 23893#(and (<= y 144) (<= 144 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 23894#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 146) (<= 146 y)), 23895#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 148 y) (<= y 148)), 23896#(and (<= y 150) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 150 y)), 23897#(and (<= y 152) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 152 y)), 23898#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 154) (<= 154 y)), 23899#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 156 y) (<= y 156)), 23900#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 158) (<= 158 y)), 23901#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 160 y) (<= y 160)), 23902#(and (<= y 162) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 162 y)), 23903#(and (<= 164 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 164)), 23904#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 23905#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 168) (<= 168 y)), 23906#(and (<= y 170) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 170 y)), 23907#(and (<= 172 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 172)), 23908#(and (<= 174 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 174)), 23909#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 176) (<= 176 y)), 23910#(and (<= y 178) (<= 178 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 23911#(and (<= 180 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 180)), 23912#(and (<= 182 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 182)), 23913#(and (<= y 184) (<= 184 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 23914#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 23915#(and (<= y 188) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 188 y)), 23916#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 190 y) (<= y 190)), 23917#(and (<= 192 y) (<= y 192) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 23918#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 194) (<= 194 y)), 23919#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 196) (<= 196 y)), 23920#(and (<= 198 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 198)), 23921#(and (<= 200 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 200)), 23922#(and (<= y 202) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 202 y)), 23923#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 204 y) (<= y 204)), 23924#(and (<= y 206) (<= 206 y) (or (<= (+ x 2) 0) (<= 0 x))), 23925#(and (<= 208 y) (or (<= 2 x) (<= x 0)) (<= y 208)), 23926#(and (<= 210 y) (or (<= 4 x) (<= x 2)) (<= y 210)), 23927#(and (or (<= x 4) (<= 6 x)) (<= 212 y) (<= y 212)), 23928#(and (<= y 214) (or (<= 8 x) (<= x 6)) (<= 214 y)), 23929#(and (or (<= x 8) (<= 10 x)) (<= y 216) (<= 216 y)), 23930#(and (or (<= 12 x) (<= x 10)) (<= y 218) (<= 218 y)), 23931#(and (<= 220 y) (or (<= 14 x) (<= x 12)) (<= y 220)), 23932#(and (<= y 222) (<= 222 y) (or (<= x 14) (<= 16 x))), 23933#(and (<= 224 y) (or (<= 18 x) (<= x 16)) (<= y 224)), 23934#(and (<= 226 y) (<= y 226) (or (<= 20 x) (<= x 18))), 23935#(and (or (<= 22 x) (<= x 20)) (<= y 228) (<= 228 y)), 23936#(and (<= 230 y) (or (<= 24 x) (<= x 22)) (<= y 230))] [2018-07-23 13:52:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,858 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:52:02,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:52:02,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=9121, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:02,859 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 97 states. [2018-07-23 13:52:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,833 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:52:03,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:52:03,834 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 96 [2018-07-23 13:52:03,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,834 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:52:03,834 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:52:03,835 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=9121, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:52:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:52:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:52:03,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:52:03,918 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-07-23 13:52:03,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,918 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:52:03,918 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:52:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:52:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:52:03,918 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,918 INFO L357 BasicCegarLoop]: trace histogram [95, 1, 1] [2018-07-23 13:52:03,919 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 871523361, now seen corresponding path program 95 times [2018-07-23 13:52:03,919 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,764 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,764 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:52:04,765 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,766 INFO L185 omatonBuilderFactory]: Interpolants [24331#true, 24332#false, 24333#(and (<= y 42) (or (< 0 (+ (div x 2) 84)) (<= x (* 2 (div x 2)))) (<= 42 y)), 24334#(and (<= 44 y) (<= y 44) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 24335#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 24336#(and (<= y 48) (<= 48 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 24337#(and (<= y 50) (<= 50 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 24338#(and (<= 52 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 52)), 24339#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 54 y) (<= y 54)), 24340#(and (<= y 56) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 56 y)), 24341#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 58 y) (<= y 58)), 24342#(and (<= 60 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 60)), 24343#(and (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 62) (<= 62 y)), 24344#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 24345#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 66 y) (<= y 66)), 24346#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 68 y) (<= y 68)), 24347#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 70 y) (<= y 70)), 24348#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 72) (<= 72 y)), 24349#(and (<= y 74) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 74 y)), 24350#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 76) (<= 76 y)), 24351#(and (<= y 78) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 78 y)), 24352#(and (<= y 80) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 80 y)), 24353#(and (<= y 82) (<= 82 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 24354#(and (<= 84 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 84)), 24355#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 86 y) (<= y 86)), 24356#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 88) (<= 88 y)), 24357#(and (<= y 90) (<= 90 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 24358#(and (<= 92 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 92)), 24359#(and (<= 94 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 94)), 24360#(and (<= 96 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 96)), 24361#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 98) (<= 98 y)), 24362#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 100 y) (<= y 100)), 24363#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 102) (<= 102 y)), 24364#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 104) (<= 104 y)), 24365#(and (<= 106 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 106)), 24366#(and (<= 108 y) (<= y 108) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 24367#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 110 y) (<= y 110)), 24368#(and (<= y 112) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 112 y)), 24369#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 114 y) (<= y 114)), 24370#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 116 y) (<= y 116)), 24371#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 118) (<= 118 y)), 24372#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 120) (<= 120 y)), 24373#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 24374#(and (<= y 124) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 124 y)), 24375#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 24376#(and (<= 128 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 128)), 24377#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 24378#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 24379#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 134 y) (<= y 134)), 24380#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 24381#(and (<= 138 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 138)), 24382#(and (<= 140 y) (<= y 140) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 24383#(and (<= 142 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 142)), 24384#(and (<= y 144) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 144 y)), 24385#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 146) (<= 146 y)), 24386#(and (<= 148 y) (<= y 148) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 24387#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 150) (<= 150 y)), 24388#(and (<= y 152) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 152 y)), 24389#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 154) (<= 154 y)), 24390#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 156 y) (<= y 156)), 24391#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 158) (<= 158 y)), 24392#(and (<= 160 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 160)), 24393#(and (<= y 162) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 162 y)), 24394#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 164 y) (<= y 164)), 24395#(and (<= y 166) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 166 y)), 24396#(and (<= y 168) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 168 y)), 24397#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 170) (<= 170 y)), 24398#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 24399#(and (<= 174 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 174)), 24400#(and (<= y 176) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 176 y)), 24401#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 178) (<= 178 y)), 24402#(and (<= 180 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 180)), 24403#(and (<= 182 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 182)), 24404#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 24405#(and (<= 186 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 186)), 24406#(and (<= y 188) (<= 188 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 24407#(and (<= 190 y) (<= y 190) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 24408#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 192 y) (<= y 192)), 24409#(and (<= y 194) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 194 y)), 24410#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 196) (<= 196 y)), 24411#(and (<= 198 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 198)), 24412#(and (<= 200 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 200)), 24413#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 24414#(and (<= 204 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 204)), 24415#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 206) (<= 206 y)), 24416#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 208 y) (<= y 208)), 24417#(and (<= 210 y) (<= y 210) (or (<= 2 x) (<= x 0))), 24418#(and (<= 212 y) (<= y 212) (or (<= 4 x) (<= x 2))), 24419#(and (or (<= x 4) (<= 6 x)) (<= y 214) (<= 214 y)), 24420#(and (<= y 216) (or (<= 8 x) (<= x 6)) (<= 216 y)), 24421#(and (<= y 218) (or (<= x 8) (<= 10 x)) (<= 218 y)), 24422#(and (or (<= 12 x) (<= x 10)) (<= 220 y) (<= y 220)), 24423#(and (<= y 222) (<= 222 y) (or (<= 14 x) (<= x 12))), 24424#(and (<= 224 y) (<= y 224) (or (<= x 14) (<= 16 x))), 24425#(and (<= 226 y) (<= y 226) (or (<= 18 x) (<= x 16))), 24426#(and (or (<= 20 x) (<= x 18)) (<= y 228) (<= 228 y)), 24427#(and (<= 230 y) (or (<= 22 x) (<= x 20)) (<= y 230)), 24428#(and (or (<= 24 x) (<= x 22)) (<= 232 y) (<= y 232))] [2018-07-23 13:52:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4560 backedges. 0 proven. 4560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,766 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:52:04,766 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:52:04,767 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=9313, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:04,767 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 98 states. [2018-07-23 13:52:05,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:05,769 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-07-23 13:52:05,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:52:05,769 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 97 [2018-07-23 13:52:05,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:05,770 INFO L225 Difference]: With dead ends: 100 [2018-07-23 13:52:05,770 INFO L226 Difference]: Without dead ends: 99 [2018-07-23 13:52:05,770 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=193, Invalid=9313, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:05,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-23 13:52:05,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-07-23 13:52:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:52:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2018-07-23 13:52:05,852 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2018-07-23 13:52:05,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:05,852 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2018-07-23 13:52:05,852 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:52:05,852 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-07-23 13:52:05,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:52:05,852 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:05,853 INFO L357 BasicCegarLoop]: trace histogram [96, 1, 1] [2018-07-23 13:52:05,853 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:05,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1247420359, now seen corresponding path program 96 times [2018-07-23 13:52:05,853 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,714 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,714 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:52:06,714 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,714 INFO L185 omatonBuilderFactory]: Interpolants [24832#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 24833#(and (<= y 50) (<= 50 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 24834#(and (<= 52 y) (<= y 52) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 24835#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 54 y) (<= y 54)), 24836#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 56) (<= 56 y)), 24837#(and (<= 58 y) (<= y 58) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 24838#(and (<= 60 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 60)), 24839#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 62) (<= 62 y)), 24840#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 24841#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 24842#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 68 y) (<= y 68)), 24843#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 70 y) (<= y 70)), 24844#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 72) (<= 72 y)), 24845#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 74) (<= 74 y)), 24846#(and (<= y 76) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 76 y)), 24847#(and (<= y 78) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 78 y)), 24848#(and (<= y 80) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 80 y)), 24849#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 82) (<= 82 y)), 24850#(and (<= 84 y) (<= y 84) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 24851#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 86 y) (<= y 86)), 24852#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 88) (<= 88 y)), 24853#(and (<= y 90) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 90 y)), 24854#(and (<= 92 y) (<= y 92) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 24855#(and (<= 94 y) (<= y 94) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 24856#(and (<= 96 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 96)), 24857#(and (<= y 98) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 98 y)), 24858#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 100 y) (<= y 100)), 24859#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 102) (<= 102 y)), 24860#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 104) (<= 104 y)), 24861#(and (<= 106 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 106)), 24862#(and (<= 108 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 108)), 24863#(and (<= 110 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 110)), 24864#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 112) (<= 112 y)), 24865#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 114 y) (<= y 114)), 24866#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 116 y) (<= y 116)), 24867#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 118) (<= 118 y)), 24868#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 120) (<= 120 y)), 24869#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 122) (<= 122 y)), 24870#(and (<= y 124) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 124 y)), 24871#(and (<= y 126) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 126 y)), 24872#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 24873#(and (<= y 130) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 130 y)), 24874#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 24875#(and (<= 134 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 134)), 24876#(and (<= 136 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 136)), 24877#(and (<= 138 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 138)), 24878#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 140 y) (<= y 140)), 24879#(and (<= 142 y) (<= y 142) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 24880#(and (<= y 144) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 144 y)), 24881#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 146) (<= 146 y)), 24882#(and (<= 148 y) (<= y 148) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 24883#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 150) (<= 150 y)), 24884#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 152) (<= 152 y)), 24885#(and (<= y 154) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 154 y)), 24886#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 156 y) (<= y 156)), 24887#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 158) (<= 158 y)), 24888#(and (<= 160 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 160)), 24889#(and (<= y 162) (<= 162 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 24890#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 164 y) (<= y 164)), 24891#(and (<= y 166) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 166 y)), 24892#(and (<= y 168) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 168 y)), 24893#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 24894#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 172 y) (<= y 172)), 24895#(and (<= 174 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 174)), 24896#(and (<= y 176) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 176 y)), 24897#(and (<= y 178) (<= 178 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 24898#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 180 y) (<= y 180)), 24899#(and (<= 182 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 182)), 24900#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 24901#(and (<= 186 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 186)), 24902#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 188) (<= 188 y)), 24903#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 24904#(and (<= 192 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 192)), 24905#(and (<= y 194) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 194 y)), 24906#(and (<= y 196) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 196 y)), 24907#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 198 y) (<= y 198)), 24908#(and (<= 200 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 200)), 24909#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 24910#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 24911#(and (<= y 206) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 206 y)), 24912#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 208 y) (<= y 208)), 24913#(and (<= 210 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 210)), 24914#(and (<= 212 y) (<= y 212) (or (<= 2 x) (<= x 0))), 24915#(and (or (<= 4 x) (<= x 2)) (<= y 214) (<= 214 y)), 24916#(and (or (<= x 4) (<= 6 x)) (<= y 216) (<= 216 y)), 24917#(and (<= y 218) (or (<= 8 x) (<= x 6)) (<= 218 y)), 24918#(and (or (<= x 8) (<= 10 x)) (<= 220 y) (<= y 220)), 24919#(and (or (<= 12 x) (<= x 10)) (<= y 222) (<= 222 y)), 24920#(and (<= 224 y) (<= y 224) (or (<= 14 x) (<= x 12))), 24921#(and (<= 226 y) (<= y 226) (or (<= x 14) (<= 16 x))), 24922#(and (or (<= 18 x) (<= x 16)) (<= y 228) (<= 228 y)), 24923#(and (<= 230 y) (<= y 230) (or (<= 20 x) (<= x 18))), 24924#(and (or (<= 22 x) (<= x 20)) (<= 232 y) (<= y 232)), 24925#(and (<= 234 y) (or (<= 24 x) (<= x 22)) (<= y 234)), 24827#true, 24828#false, 24829#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 85)) (<= x (* 2 (div x 2))))), 24830#(and (<= 44 y) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 44)), 24831#(and (<= 46 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= y 46))] [2018-07-23 13:52:06,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4656 backedges. 0 proven. 4656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,715 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:52:06,715 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:52:06,715 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=9507, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:06,716 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 99 states. [2018-07-23 13:52:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,786 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:52:07,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:52:07,787 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 98 [2018-07-23 13:52:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,787 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:52:07,788 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:52:07,789 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=9507, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:07,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:52:07,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:52:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:52:07,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:52:07,927 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2018-07-23 13:52:07,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,928 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:52:07,928 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:52:07,928 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:52:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:52:07,929 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,929 INFO L357 BasicCegarLoop]: trace histogram [97, 1, 1] [2018-07-23 13:52:07,929 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,929 INFO L82 PathProgramCache]: Analyzing trace with hash 15325409, now seen corresponding path program 97 times [2018-07-23 13:52:07,929 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,984 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,984 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:52:08,984 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,984 INFO L185 omatonBuilderFactory]: Interpolants [25344#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 70 y) (<= y 70)), 25345#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 72) (<= 72 y)), 25346#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 74) (<= 74 y)), 25347#(and (<= y 76) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 76 y)), 25348#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 25349#(and (<= y 80) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 80 y)), 25350#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 82) (<= 82 y)), 25351#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 84 y) (<= y 84)), 25352#(and (<= 86 y) (<= y 86) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 25353#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 88) (<= 88 y)), 25354#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 90) (<= 90 y)), 25355#(and (<= 92 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 92)), 25356#(and (<= 94 y) (<= y 94) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 25357#(and (<= 96 y) (<= y 96) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 25358#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 98) (<= 98 y)), 25359#(and (<= 100 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 100)), 25360#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 102) (<= 102 y)), 25361#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 104) (<= 104 y)), 25362#(and (<= 106 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 106)), 25363#(and (<= 108 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 108)), 25364#(and (<= 110 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 110)), 25365#(and (<= y 112) (<= 112 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 25366#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 114 y) (<= y 114)), 25367#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 116 y) (<= y 116)), 25368#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 118) (<= 118 y)), 25369#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 120) (<= 120 y)), 25370#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 122) (<= 122 y)), 25371#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 124) (<= 124 y)), 25372#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 25373#(and (<= 128 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 128)), 25374#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 25375#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 132) (<= 132 y)), 25376#(and (<= 134 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 134)), 25377#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 25378#(and (<= 138 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 138)), 25379#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 25380#(and (<= 142 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 142)), 25381#(and (<= y 144) (<= 144 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 25382#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 146) (<= 146 y)), 25383#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 148 y) (<= y 148)), 25384#(and (<= y 150) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 150 y)), 25385#(and (<= y 152) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 152 y)), 25386#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 154) (<= 154 y)), 25387#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 156 y) (<= y 156)), 25388#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 158) (<= 158 y)), 25389#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 160 y) (<= y 160)), 25390#(and (<= y 162) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 162 y)), 25391#(and (<= 164 y) (<= y 164) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 25392#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 166) (<= 166 y)), 25393#(and (<= y 168) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 168 y)), 25394#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 170) (<= 170 y)), 25395#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 25396#(and (<= 174 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 174)), 25397#(and (<= y 176) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 176 y)), 25398#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 25399#(and (<= 180 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 180)), 25400#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 182 y) (<= y 182)), 25401#(and (<= y 184) (<= 184 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 25402#(and (<= 186 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 186)), 25403#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 188) (<= 188 y)), 25404#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 190 y) (<= y 190)), 25405#(and (<= 192 y) (<= y 192) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 25406#(and (<= y 194) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 194 y)), 25407#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 196) (<= 196 y)), 25408#(and (<= 198 y) (<= y 198) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 25409#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 200 y) (<= y 200)), 25410#(and (<= y 202) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 202 y)), 25411#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 25412#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 25413#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 208 y) (<= y 208)), 25414#(and (<= 210 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 210)), 25415#(and (<= 212 y) (<= y 212) (or (<= (+ x 2) 0) (<= 0 x))), 25416#(and (<= y 214) (<= 214 y) (or (<= 2 x) (<= x 0))), 25417#(and (or (<= 4 x) (<= x 2)) (<= y 216) (<= 216 y)), 25418#(and (or (<= x 4) (<= 6 x)) (<= y 218) (<= 218 y)), 25419#(and (or (<= 8 x) (<= x 6)) (<= 220 y) (<= y 220)), 25420#(and (<= y 222) (<= 222 y) (or (<= x 8) (<= 10 x))), 25421#(and (or (<= 12 x) (<= x 10)) (<= 224 y) (<= y 224)), 25422#(and (<= 226 y) (<= y 226) (or (<= 14 x) (<= x 12))), 25423#(and (<= y 228) (<= 228 y) (or (<= x 14) (<= 16 x))), 25424#(and (<= 230 y) (or (<= 18 x) (<= x 16)) (<= y 230)), 25425#(and (or (<= 20 x) (<= x 18)) (<= 232 y) (<= y 232)), 25426#(and (<= 234 y) (or (<= 22 x) (<= x 20)) (<= y 234)), 25427#(and (or (<= 24 x) (<= x 22)) (<= 236 y) (<= y 236)), 25328#true, 25329#false, 25330#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 86)) (<= x (* 2 (div x 2))))), 25331#(and (<= 44 y) (<= y 44) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 25332#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 46 y) (<= y 46)), 25333#(and (<= y 48) (<= 48 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 25334#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 25335#(and (<= 52 y) (<= y 52) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 25336#(and (<= 54 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 54)), 25337#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 56) (<= 56 y)), 25338#(and (<= 58 y) (<= y 58) (or (<= (+ x 156) 0) (<= 0 (+ x 154)))), 25339#(and (<= 60 y) (<= y 60) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 25340#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 62) (<= 62 y)), 25341#(and (<= y 64) (<= 64 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 25342#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 25343#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)))] [2018-07-23 13:52:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4753 backedges. 0 proven. 4753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,985 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:52:08,985 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:52:08,986 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=9703, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:08,986 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 100 states. [2018-07-23 13:52:10,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,135 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-07-23 13:52:10,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:52:10,135 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 99 [2018-07-23 13:52:10,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,136 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:52:10,136 INFO L226 Difference]: Without dead ends: 101 [2018-07-23 13:52:10,137 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=197, Invalid=9703, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:10,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-07-23 13:52:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-07-23 13:52:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 13:52:10,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-07-23 13:52:10,263 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2018-07-23 13:52:10,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,264 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-07-23 13:52:10,264 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:52:10,264 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-07-23 13:52:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 13:52:10,264 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,264 INFO L357 BasicCegarLoop]: trace histogram [98, 1, 1] [2018-07-23 13:52:10,264 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash 475087623, now seen corresponding path program 98 times [2018-07-23 13:52:10,265 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,218 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,218 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:52:11,218 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,219 INFO L185 omatonBuilderFactory]: Interpolants [25856#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 82) (<= 82 y)), 25857#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 84 y) (<= y 84)), 25858#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 86 y) (<= y 86)), 25859#(and (<= y 88) (<= 88 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 25860#(and (<= y 90) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 90 y)), 25861#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 92 y) (<= y 92)), 25862#(and (<= 94 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 94)), 25863#(and (<= 96 y) (<= y 96) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 25864#(and (<= y 98) (<= 98 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 25865#(and (<= 100 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 100)), 25866#(and (<= y 102) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 102 y)), 25867#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 104) (<= 104 y)), 25868#(and (<= 106 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 106)), 25869#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 108 y) (<= y 108)), 25870#(and (<= 110 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 110)), 25871#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 25872#(and (<= 114 y) (<= y 114) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 25873#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 116 y) (<= y 116)), 25874#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 118) (<= 118 y)), 25875#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 120) (<= 120 y)), 25876#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 122) (<= 122 y)), 25877#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 124) (<= 124 y)), 25878#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 126) (<= 126 y)), 25879#(and (<= 128 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 128)), 25880#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 25881#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 25882#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 134 y) (<= y 134)), 25883#(and (<= 136 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 136)), 25884#(and (<= 138 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 138)), 25885#(and (<= 140 y) (<= y 140) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 25886#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 25887#(and (<= y 144) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 144 y)), 25888#(and (<= y 146) (<= 146 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 25889#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 148 y) (<= y 148)), 25890#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 150) (<= 150 y)), 25891#(and (<= y 152) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 152 y)), 25892#(and (<= y 154) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 154 y)), 25893#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 156 y) (<= y 156)), 25894#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 158) (<= 158 y)), 25895#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 160 y) (<= y 160)), 25896#(and (<= y 162) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 162 y)), 25897#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 164 y) (<= y 164)), 25898#(and (<= y 166) (<= 166 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 25899#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 168) (<= 168 y)), 25900#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 170) (<= 170 y)), 25901#(and (<= 172 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 172)), 25902#(and (<= 174 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 174)), 25903#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 176) (<= 176 y)), 25904#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 25905#(and (<= 180 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 180)), 25906#(and (<= 182 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 182)), 25907#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 184) (<= 184 y)), 25908#(and (<= 186 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 186)), 25909#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 188) (<= 188 y)), 25910#(and (<= 190 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 190)), 25911#(and (<= 192 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 192)), 25912#(and (<= y 194) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 194 y)), 25913#(and (<= y 196) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 196 y)), 25914#(and (<= 198 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 198)), 25915#(and (<= 200 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= y 200)), 25916#(and (<= y 202) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 202 y)), 25917#(and (<= 204 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 204)), 25918#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 25919#(and (<= 208 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 208)), 25920#(and (<= 210 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 210)), 25921#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 212 y) (<= y 212)), 25922#(and (<= y 214) (or (<= (+ x 2) 0) (<= 0 x)) (<= 214 y)), 25923#(and (<= y 216) (or (<= 2 x) (<= x 0)) (<= 216 y)), 25924#(and (<= y 218) (or (<= 4 x) (<= x 2)) (<= 218 y)), 25925#(and (or (<= x 4) (<= 6 x)) (<= 220 y) (<= y 220)), 25926#(and (<= y 222) (<= 222 y) (or (<= 8 x) (<= x 6))), 25927#(and (<= 224 y) (<= y 224) (or (<= x 8) (<= 10 x))), 25928#(and (or (<= 12 x) (<= x 10)) (<= 226 y) (<= y 226)), 25929#(and (<= y 228) (<= 228 y) (or (<= 14 x) (<= x 12))), 25930#(and (<= 230 y) (<= y 230) (or (<= x 14) (<= 16 x))), 25931#(and (or (<= 18 x) (<= x 16)) (<= 232 y) (<= y 232)), 25932#(and (<= 234 y) (or (<= 20 x) (<= x 18)) (<= y 234)), 25933#(and (or (<= 22 x) (<= x 20)) (<= 236 y) (<= y 236)), 25934#(and (or (<= 24 x) (<= x 22)) (<= y 238) (<= 238 y)), 25834#true, 25835#false, 25836#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 87)) (<= x (* 2 (div x 2))))), 25837#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 25838#(and (<= 46 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 46)), 25839#(and (<= y 48) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 48 y)), 25840#(and (<= y 50) (<= 50 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 25841#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 25842#(and (<= 54 y) (<= y 54) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 25843#(and (<= y 56) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 56 y)), 25844#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 25845#(and (<= 60 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 60)), 25846#(and (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 62) (<= 62 y)), 25847#(and (<= y 64) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 64 y)), 25848#(and (<= 66 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 66)), 25849#(and (<= 68 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 68)), 25850#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 25851#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 72) (<= 72 y)), 25852#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 74) (<= 74 y)), 25853#(and (<= y 76) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 76 y)), 25854#(and (<= y 78) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 78 y)), 25855#(and (<= y 80) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 80 y))] [2018-07-23 13:52:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4851 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,219 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:52:11,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:52:11,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=9901, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:52:11,220 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 101 states. [2018-07-23 13:52:12,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,165 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:52:12,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:52:12,165 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 100 [2018-07-23 13:52:12,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,166 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:52:12,166 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:52:12,167 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=199, Invalid=9901, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:52:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:52:12,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:52:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:52:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:52:12,258 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2018-07-23 13:52:12,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,258 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:52:12,258 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:52:12,258 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:52:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:52:12,258 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,259 INFO L357 BasicCegarLoop]: trace histogram [99, 1, 1] [2018-07-23 13:52:12,259 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1842814369, now seen corresponding path program 99 times [2018-07-23 13:52:12,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,107 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,108 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:52:13,108 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,108 INFO L185 omatonBuilderFactory]: Interpolants [26368#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 84 y) (<= y 84)), 26369#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 86 y) (<= y 86)), 26370#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 88) (<= 88 y)), 26371#(and (<= y 90) (<= 90 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 26372#(and (<= 92 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 92)), 26373#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 94 y) (<= y 94)), 26374#(and (<= 96 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 96)), 26375#(and (<= y 98) (<= 98 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 26376#(and (<= 100 y) (<= y 100) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 26377#(and (<= y 102) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 102 y)), 26378#(and (<= y 104) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 104 y)), 26379#(and (<= 106 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 106)), 26380#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 108 y) (<= y 108)), 26381#(and (<= 110 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 110)), 26382#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0))), 26383#(and (<= 114 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 114)), 26384#(and (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 116 y) (<= y 116)), 26385#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 118) (<= 118 y)), 26386#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 120) (<= 120 y)), 26387#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 122) (<= 122 y)), 26388#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 124) (<= 124 y)), 26389#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 126) (<= 126 y)), 26390#(and (<= 128 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 128)), 26391#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 26392#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 132) (<= 132 y)), 26393#(and (<= 134 y) (<= y 134) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 26394#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 136 y) (<= y 136)), 26395#(and (<= 138 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 138)), 26396#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 26397#(and (<= 142 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 142)), 26398#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 26399#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 146) (<= 146 y)), 26400#(and (<= 148 y) (<= y 148) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 26401#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 150) (<= 150 y)), 26402#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 152) (<= 152 y)), 26403#(and (<= y 154) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 154 y)), 26404#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 156 y) (<= y 156)), 26405#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 158) (<= 158 y)), 26406#(and (<= 160 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 160)), 26407#(and (<= y 162) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 162 y)), 26408#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 164 y) (<= y 164)), 26409#(and (<= y 166) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 166 y)), 26410#(and (<= y 168) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 168 y)), 26411#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 170) (<= 170 y)), 26412#(and (<= 172 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 172)), 26413#(and (<= 174 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 174)), 26414#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 26415#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 178) (<= 178 y)), 26416#(and (<= 180 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 180)), 26417#(and (<= 182 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 182)), 26418#(and (<= y 184) (<= 184 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 26419#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 186 y) (<= y 186)), 26420#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 188) (<= 188 y)), 26421#(and (<= 190 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 190)), 26422#(and (<= 192 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 192)), 26423#(and (<= y 194) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 194 y)), 26424#(and (<= y 196) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 196 y)), 26425#(and (<= 198 y) (<= y 198) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 26426#(and (<= 200 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 200)), 26427#(and (<= y 202) (<= 202 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 26428#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 204 y) (<= y 204)), 26429#(and (<= y 206) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 206 y)), 26430#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 208 y) (<= y 208)), 26431#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 26432#(and (<= 212 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 212)), 26433#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 214) (<= 214 y)), 26434#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 216) (<= 216 y)), 26435#(and (<= y 218) (<= 218 y) (or (<= 2 x) (<= x 0))), 26436#(and (or (<= 4 x) (<= x 2)) (<= 220 y) (<= y 220)), 26437#(and (or (<= x 4) (<= 6 x)) (<= y 222) (<= 222 y)), 26438#(and (<= 224 y) (<= y 224) (or (<= 8 x) (<= x 6))), 26439#(and (<= 226 y) (<= y 226) (or (<= x 8) (<= 10 x))), 26440#(and (or (<= 12 x) (<= x 10)) (<= y 228) (<= 228 y)), 26441#(and (<= 230 y) (<= y 230) (or (<= 14 x) (<= x 12))), 26442#(and (<= 232 y) (or (<= x 14) (<= 16 x)) (<= y 232)), 26443#(and (<= 234 y) (or (<= 18 x) (<= x 16)) (<= y 234)), 26444#(and (<= 236 y) (or (<= 20 x) (<= x 18)) (<= y 236)), 26445#(and (or (<= 22 x) (<= x 20)) (<= y 238) (<= 238 y)), 26446#(and (or (<= 24 x) (<= x 22)) (<= y 240) (<= 240 y)), 26345#true, 26346#false, 26347#(and (<= y 42) (or (< 0 (+ (div x 2) 88)) (<= x (* 2 (div x 2)))) (<= 42 y)), 26348#(and (<= 44 y) (<= y 44) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 26349#(and (<= 46 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 46)), 26350#(and (<= y 48) (<= 48 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 26351#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 50) (<= 50 y)), 26352#(and (<= 52 y) (<= y 52) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 26353#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 26354#(and (<= y 56) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 56 y)), 26355#(and (<= 58 y) (<= y 58) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 26356#(and (<= 60 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 60)), 26357#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 62) (<= 62 y)), 26358#(and (<= y 64) (<= 64 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 26359#(and (<= 66 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 66)), 26360#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 68 y) (<= y 68)), 26361#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 26362#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 26363#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 74) (<= 74 y)), 26364#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 76) (<= 76 y)), 26365#(and (<= y 78) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 78 y)), 26366#(and (<= y 80) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 80 y)), 26367#(and (<= y 82) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 82 y))] [2018-07-23 13:52:13,109 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,109 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:52:13,109 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:52:13,109 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=10101, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:13,110 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 102 states. [2018-07-23 13:52:14,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,213 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-07-23 13:52:14,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:52:14,213 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 101 [2018-07-23 13:52:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,214 INFO L225 Difference]: With dead ends: 104 [2018-07-23 13:52:14,214 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:52:14,215 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=201, Invalid=10101, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:52:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:52:14,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:52:14,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-07-23 13:52:14,304 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2018-07-23 13:52:14,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,304 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-07-23 13:52:14,304 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:52:14,304 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-07-23 13:52:14,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:52:14,305 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,305 INFO L357 BasicCegarLoop]: trace histogram [100, 1, 1] [2018-07-23 13:52:14,305 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1292670535, now seen corresponding path program 100 times [2018-07-23 13:52:14,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,446 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,446 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:52:15,446 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,447 INFO L185 omatonBuilderFactory]: Interpolants [26880#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 76) (<= 76 y)), 26881#(and (<= y 78) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 78 y)), 26882#(and (<= y 80) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 80 y)), 26883#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 82) (<= 82 y)), 26884#(and (<= 84 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 84)), 26885#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 86 y) (<= y 86)), 26886#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 88) (<= 88 y)), 26887#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 90) (<= 90 y)), 26888#(and (<= 92 y) (<= y 92) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 26889#(and (<= 94 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 94)), 26890#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 96 y) (<= y 96)), 26891#(and (<= y 98) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 98 y)), 26892#(and (<= 100 y) (<= y 100) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 26893#(and (<= y 102) (<= 102 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 26894#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 104) (<= 104 y)), 26895#(and (<= 106 y) (<= y 106) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 26896#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 108 y) (<= y 108)), 26897#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 110 y) (<= y 110)), 26898#(and (<= y 112) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 112 y)), 26899#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 114 y) (<= y 114)), 26900#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 116 y) (<= y 116)), 26901#(and (<= y 118) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 118 y)), 26902#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 120) (<= 120 y)), 26903#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 122) (<= 122 y)), 26904#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 124) (<= 124 y)), 26905#(and (<= y 126) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 126 y)), 26906#(and (<= 128 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 128)), 26907#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 130) (<= 130 y)), 26908#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 132) (<= 132 y)), 26909#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 134 y) (<= y 134)), 26910#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 26911#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 138 y) (<= y 138)), 26912#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 26913#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 26914#(and (<= y 144) (<= 144 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 26915#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 26916#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 148 y) (<= y 148)), 26917#(and (<= y 150) (<= 150 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 26918#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 152) (<= 152 y)), 26919#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 154) (<= 154 y)), 26920#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 156 y) (<= y 156)), 26921#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 158) (<= 158 y)), 26922#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 160 y) (<= y 160)), 26923#(and (<= y 162) (<= 162 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 26924#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 164 y) (<= y 164)), 26925#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 166) (<= 166 y)), 26926#(and (<= y 168) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 168 y)), 26927#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 170) (<= 170 y)), 26928#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 172 y) (<= y 172)), 26929#(and (<= 174 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 174)), 26930#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 176) (<= 176 y)), 26931#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 26932#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 180 y) (<= y 180)), 26933#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 26934#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 26935#(and (<= 186 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 186)), 26936#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 188) (<= 188 y)), 26937#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 190 y) (<= y 190)), 26938#(and (<= 192 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 192)), 26939#(and (<= y 194) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 194 y)), 26940#(and (<= y 196) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 196 y)), 26941#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 26942#(and (<= 200 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 200)), 26943#(and (<= y 202) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 202 y)), 26944#(and (<= 204 y) (<= y 204) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 26945#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 206) (<= 206 y)), 26946#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 208 y) (<= y 208)), 26947#(and (<= 210 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 210)), 26948#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 26949#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 214) (<= 214 y)), 26950#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 216) (<= 216 y)), 26951#(and (<= y 218) (or (<= (+ x 2) 0) (<= 0 x)) (<= 218 y)), 26952#(and (<= 220 y) (or (<= 2 x) (<= x 0)) (<= y 220)), 26953#(and (<= y 222) (<= 222 y) (or (<= 4 x) (<= x 2))), 26954#(and (or (<= x 4) (<= 6 x)) (<= 224 y) (<= y 224)), 26955#(and (<= 226 y) (<= y 226) (or (<= 8 x) (<= x 6))), 26956#(and (or (<= x 8) (<= 10 x)) (<= y 228) (<= 228 y)), 26957#(and (or (<= 12 x) (<= x 10)) (<= 230 y) (<= y 230)), 26958#(and (<= 232 y) (<= y 232) (or (<= 14 x) (<= x 12))), 26959#(and (<= 234 y) (<= y 234) (or (<= x 14) (<= 16 x))), 26960#(and (or (<= 18 x) (<= x 16)) (<= 236 y) (<= y 236)), 26961#(and (<= y 238) (<= 238 y) (or (<= 20 x) (<= x 18))), 26962#(and (or (<= 22 x) (<= x 20)) (<= y 240) (<= 240 y)), 26963#(and (<= 242 y) (or (<= 24 x) (<= x 22)) (<= y 242)), 26861#true, 26862#false, 26863#(and (or (< 0 (+ (div x 2) 89)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 26864#(and (<= 44 y) (<= y 44) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 26865#(and (<= 46 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 46)), 26866#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 26867#(and (<= y 50) (<= 50 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 26868#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 52 y) (<= y 52)), 26869#(and (<= 54 y) (<= y 54) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 26870#(and (<= y 56) (or (<= 0 (+ x 162)) (<= (+ x 164) 0)) (<= 56 y)), 26871#(and (<= 58 y) (<= y 58) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 26872#(and (<= 60 y) (<= y 60) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 26873#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 62) (<= 62 y)), 26874#(and (<= y 64) (<= 64 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154)))), 26875#(and (<= 66 y) (<= y 66) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 26876#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 68 y) (<= y 68)), 26877#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 70 y) (<= y 70)), 26878#(and (<= y 72) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 72 y)), 26879#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)))] [2018-07-23 13:52:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,447 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:52:15,447 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:52:15,448 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:15,448 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 103 states. [2018-07-23 13:52:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:16,526 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:52:16,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:52:16,526 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 102 [2018-07-23 13:52:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:16,527 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:52:16,527 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:52:16,528 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:52:16,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:52:16,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:52:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:52:16,618 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2018-07-23 13:52:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:16,618 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:52:16,618 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:52:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:52:16,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:52:16,619 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:16,619 INFO L357 BasicCegarLoop]: trace histogram [101, 1, 1] [2018-07-23 13:52:16,619 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:16,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1418080865, now seen corresponding path program 101 times [2018-07-23 13:52:16,619 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,633 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,633 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:52:17,633 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,634 INFO L185 omatonBuilderFactory]: Interpolants [27392#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 27393#(and (<= 60 y) (<= y 60) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 27394#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 62) (<= 62 y)), 27395#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 27396#(and (<= 66 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 66)), 27397#(and (<= 68 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 68)), 27398#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 70 y) (<= y 70)), 27399#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 72) (<= 72 y)), 27400#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 27401#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 27402#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 78) (<= 78 y)), 27403#(and (<= y 80) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 80 y)), 27404#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 82) (<= 82 y)), 27405#(and (<= 84 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 84)), 27406#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 27407#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 88) (<= 88 y)), 27408#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 90) (<= 90 y)), 27409#(and (<= 92 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 92)), 27410#(and (<= 94 y) (<= y 94) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 27411#(and (<= 96 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 96)), 27412#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 98) (<= 98 y)), 27413#(and (<= 100 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 100)), 27414#(and (<= y 102) (<= 102 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 27415#(and (<= y 104) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 104 y)), 27416#(and (<= 106 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 106)), 27417#(and (<= 108 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 108)), 27418#(and (<= 110 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 110)), 27419#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 112) (<= 112 y)), 27420#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 114 y) (<= y 114)), 27421#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 116 y) (<= y 116)), 27422#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 118) (<= 118 y)), 27423#(and (<= y 120) (<= 120 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 27424#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 122) (<= 122 y)), 27425#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 124) (<= 124 y)), 27426#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 126) (<= 126 y)), 27427#(and (<= 128 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 128)), 27428#(and (<= y 130) (<= 130 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90)))), 27429#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 132) (<= 132 y)), 27430#(and (<= 134 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 134)), 27431#(and (<= 136 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 136)), 27432#(and (<= 138 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= y 138)), 27433#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 140 y) (<= y 140)), 27434#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 27435#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 27436#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 146) (<= 146 y)), 27437#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 27438#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 150) (<= 150 y)), 27439#(and (<= y 152) (<= 152 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 27440#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 154) (<= 154 y)), 27441#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 156 y) (<= y 156)), 27442#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 158) (<= 158 y)), 27443#(and (<= 160 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 160)), 27444#(and (<= y 162) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 162 y)), 27445#(and (<= 164 y) (<= y 164) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 27446#(and (<= y 166) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 166 y)), 27447#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 168) (<= 168 y)), 27448#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 170) (<= 170 y)), 27449#(and (<= 172 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 172)), 27450#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 174 y) (<= y 174)), 27451#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 176) (<= 176 y)), 27452#(and (<= y 178) (<= 178 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 27453#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 27454#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 182 y) (<= y 182)), 27455#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 27456#(and (<= 186 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 186)), 27457#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 188) (<= 188 y)), 27458#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 190 y) (<= y 190)), 27459#(and (<= 192 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 192)), 27460#(and (<= y 194) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 194 y)), 27461#(and (<= y 196) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 196 y)), 27462#(and (<= 198 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 198)), 27463#(and (<= 200 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 200)), 27464#(and (<= y 202) (<= 202 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 27465#(and (<= 204 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 204)), 27466#(and (<= y 206) (<= 206 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 27467#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 208 y) (<= y 208)), 27468#(and (<= 210 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 210)), 27469#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 27470#(and (<= y 214) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 214 y)), 27471#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 216) (<= 216 y)), 27472#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 218) (<= 218 y)), 27473#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 220 y) (<= y 220)), 27474#(and (<= y 222) (<= 222 y) (or (<= 2 x) (<= x 0))), 27475#(and (<= 224 y) (<= y 224) (or (<= 4 x) (<= x 2))), 27476#(and (or (<= x 4) (<= 6 x)) (<= 226 y) (<= y 226)), 27477#(and (<= y 228) (<= 228 y) (or (<= 8 x) (<= x 6))), 27478#(and (<= 230 y) (<= y 230) (or (<= x 8) (<= 10 x))), 27479#(and (or (<= 12 x) (<= x 10)) (<= 232 y) (<= y 232)), 27480#(and (<= 234 y) (<= y 234) (or (<= 14 x) (<= x 12))), 27481#(and (<= 236 y) (<= y 236) (or (<= x 14) (<= 16 x))), 27482#(and (or (<= 18 x) (<= x 16)) (<= y 238) (<= 238 y)), 27483#(and (<= y 240) (<= 240 y) (or (<= 20 x) (<= x 18))), 27484#(and (<= 242 y) (or (<= 22 x) (<= x 20)) (<= y 242)), 27485#(and (or (<= 24 x) (<= x 22)) (<= y 244) (<= 244 y)), 27382#true, 27383#false, 27384#(and (or (< 0 (+ (div x 2) 90)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 27385#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 27386#(and (<= 46 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 46)), 27387#(and (<= y 48) (<= 48 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 27388#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 27389#(and (<= 52 y) (<= y 52) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 27390#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 54 y) (<= y 54)), 27391#(and (<= y 56) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 56 y))] [2018-07-23 13:52:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 0 proven. 5151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,635 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:52:17,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:52:17,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:17,636 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 104 states. [2018-07-23 13:52:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,786 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-07-23 13:52:18,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:52:18,787 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 103 [2018-07-23 13:52:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,787 INFO L225 Difference]: With dead ends: 106 [2018-07-23 13:52:18,788 INFO L226 Difference]: Without dead ends: 105 [2018-07-23 13:52:18,789 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-07-23 13:52:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-07-23 13:52:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:52:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-07-23 13:52:18,884 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2018-07-23 13:52:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,884 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-07-23 13:52:18,884 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:52:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-07-23 13:52:18,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:52:18,885 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,885 INFO L357 BasicCegarLoop]: trace histogram [102, 1, 1] [2018-07-23 13:52:18,885 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1010833799, now seen corresponding path program 102 times [2018-07-23 13:52:18,885 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,887 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:52:19,887 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,888 INFO L185 omatonBuilderFactory]: Interpolants [27908#true, 27909#false, 27910#(and (<= y 42) (or (< 0 (+ (div x 2) 91)) (<= x (* 2 (div x 2)))) (<= 42 y)), 27911#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 27912#(and (<= 46 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 46)), 27913#(and (<= y 48) (<= 48 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 27914#(and (<= y 50) (<= 50 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 27915#(and (<= 52 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 52)), 27916#(and (<= 54 y) (<= y 54) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 27917#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 56) (<= 56 y)), 27918#(and (<= 58 y) (<= y 58) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 27919#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 27920#(and (<= y 62) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 62 y)), 27921#(and (<= y 64) (<= 64 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 27922#(and (<= 66 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 66)), 27923#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 68 y) (<= y 68)), 27924#(and (<= 70 y) (<= y 70) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 27925#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 72) (<= 72 y)), 27926#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 74) (<= 74 y)), 27927#(and (<= y 76) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 76 y)), 27928#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 27929#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 80) (<= 80 y)), 27930#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 82) (<= 82 y)), 27931#(and (<= 84 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 84)), 27932#(and (<= 86 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 86)), 27933#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 88) (<= 88 y)), 27934#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 90) (<= 90 y)), 27935#(and (<= 92 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 92)), 27936#(and (<= 94 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 94)), 27937#(and (<= 96 y) (<= y 96) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 27938#(and (<= y 98) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 98 y)), 27939#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 100 y) (<= y 100)), 27940#(and (<= y 102) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 102 y)), 27941#(and (<= y 104) (<= 104 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 27942#(and (<= 106 y) (<= y 106) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 27943#(and (<= 108 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 108)), 27944#(and (<= 110 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 110)), 27945#(and (<= y 112) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 112 y)), 27946#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 114 y) (<= y 114)), 27947#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 116 y) (<= y 116)), 27948#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 118) (<= 118 y)), 27949#(and (<= y 120) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 120 y)), 27950#(and (<= y 122) (<= 122 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 27951#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 124) (<= 124 y)), 27952#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 126) (<= 126 y)), 27953#(and (<= 128 y) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 128)), 27954#(and (<= y 130) (<= 130 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 27955#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 132) (<= 132 y)), 27956#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 134 y) (<= y 134)), 27957#(and (<= 136 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 136)), 27958#(and (<= 138 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 138)), 27959#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 27960#(and (<= 142 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 142)), 27961#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 27962#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 27963#(and (<= 148 y) (<= y 148) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 27964#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 27965#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 152) (<= 152 y)), 27966#(and (<= y 154) (<= 154 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 27967#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 156 y) (<= y 156)), 27968#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 158) (<= 158 y)), 27969#(and (<= 160 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 160)), 27970#(and (<= y 162) (<= 162 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 27971#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 164 y) (<= y 164)), 27972#(and (<= y 166) (<= 166 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 27973#(and (<= y 168) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 168 y)), 27974#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 170) (<= 170 y)), 27975#(and (<= 172 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 172)), 27976#(and (<= 174 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 174)), 27977#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 176) (<= 176 y)), 27978#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 27979#(and (<= 180 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 180)), 27980#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 27981#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 184) (<= 184 y)), 27982#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 27983#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 188) (<= 188 y)), 27984#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 190 y) (<= y 190)), 27985#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 192 y) (<= y 192)), 27986#(and (<= y 194) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 194 y)), 27987#(and (<= y 196) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 196 y)), 27988#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 27989#(and (<= 200 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 200)), 27990#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 27991#(and (<= 204 y) (<= y 204) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 27992#(and (<= y 206) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 206 y)), 27993#(and (<= 208 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= y 208)), 27994#(and (<= 210 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 210)), 27995#(and (<= 212 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 212)), 27996#(and (<= y 214) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 214 y)), 27997#(and (<= y 216) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 216 y)), 27998#(and (<= y 218) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 218 y)), 27999#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 220 y) (<= y 220)), 28000#(and (<= y 222) (<= 222 y) (or (<= (+ x 2) 0) (<= 0 x))), 28001#(and (<= 224 y) (<= y 224) (or (<= 2 x) (<= x 0))), 28002#(and (<= 226 y) (<= y 226) (or (<= 4 x) (<= x 2))), 28003#(and (or (<= x 4) (<= 6 x)) (<= y 228) (<= 228 y)), 28004#(and (<= 230 y) (<= y 230) (or (<= 8 x) (<= x 6))), 28005#(and (or (<= x 8) (<= 10 x)) (<= 232 y) (<= y 232)), 28006#(and (or (<= 12 x) (<= x 10)) (<= 234 y) (<= y 234)), 28007#(and (<= 236 y) (<= y 236) (or (<= 14 x) (<= x 12))), 28008#(and (<= y 238) (<= 238 y) (or (<= x 14) (<= 16 x))), 28009#(and (or (<= 18 x) (<= x 16)) (<= y 240) (<= 240 y)), 28010#(and (<= 242 y) (or (<= 20 x) (<= x 18)) (<= y 242)), 28011#(and (or (<= 22 x) (<= x 20)) (<= y 244) (<= 244 y)), 28012#(and (or (<= 24 x) (<= x 22)) (<= 246 y) (<= y 246))] [2018-07-23 13:52:19,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5253 backedges. 0 proven. 5253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,888 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:52:19,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:52:19,889 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=10713, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:19,889 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 105 states. [2018-07-23 13:52:21,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,004 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:52:21,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:52:21,004 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 104 [2018-07-23 13:52:21,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,005 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:52:21,005 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:52:21,006 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=207, Invalid=10713, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:52:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:52:21,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:52:21,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:52:21,102 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 104 [2018-07-23 13:52:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,102 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:52:21,102 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:52:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:52:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:52:21,103 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,103 INFO L357 BasicCegarLoop]: trace histogram [103, 1, 1] [2018-07-23 13:52:21,103 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1271076641, now seen corresponding path program 103 times [2018-07-23 13:52:21,103 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,119 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,119 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:52:22,119 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,120 INFO L185 omatonBuilderFactory]: Interpolants [28439#true, 28440#false, 28441#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 92)) (<= x (* 2 (div x 2))))), 28442#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 180)) (<= (+ x 182) 0))), 28443#(and (<= 46 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 46)), 28444#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 28445#(and (<= y 50) (<= 50 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 28446#(and (<= 52 y) (<= y 52) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 28447#(and (<= 54 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 54)), 28448#(and (<= y 56) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 56 y)), 28449#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 58 y) (<= y 58)), 28450#(and (<= 60 y) (<= y 60) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 28451#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 28452#(and (<= y 64) (<= 64 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 28453#(and (<= 66 y) (<= y 66) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 28454#(and (<= 68 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 68)), 28455#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 70 y) (<= y 70)), 28456#(and (<= y 72) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 72 y)), 28457#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 74) (<= 74 y)), 28458#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 76) (<= 76 y)), 28459#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 28460#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 28461#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 82) (<= 82 y)), 28462#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 84 y) (<= y 84)), 28463#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 86 y) (<= y 86)), 28464#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 88) (<= 88 y)), 28465#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 28466#(and (<= 92 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 92)), 28467#(and (<= 94 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 94)), 28468#(and (<= 96 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 96)), 28469#(and (<= y 98) (<= 98 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 28470#(and (<= 100 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 100)), 28471#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 102) (<= 102 y)), 28472#(and (<= y 104) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 104 y)), 28473#(and (<= 106 y) (<= y 106) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 28474#(and (<= 108 y) (<= y 108) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 28475#(and (<= 110 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 110)), 28476#(and (<= y 112) (<= 112 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 28477#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 114 y) (<= y 114)), 28478#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 116 y) (<= y 116)), 28479#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 118) (<= 118 y)), 28480#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 120) (<= 120 y)), 28481#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 28482#(and (<= y 124) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 124 y)), 28483#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 126) (<= 126 y)), 28484#(and (<= 128 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 128)), 28485#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 130) (<= 130 y)), 28486#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 132) (<= 132 y)), 28487#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 134 y) (<= y 134)), 28488#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 136 y) (<= y 136)), 28489#(and (<= 138 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 138)), 28490#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 28491#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 28492#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 144) (<= 144 y)), 28493#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 28494#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 28495#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 150) (<= 150 y)), 28496#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 28497#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 154) (<= 154 y)), 28498#(and (<= 156 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 156)), 28499#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 158) (<= 158 y)), 28500#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 160 y) (<= y 160)), 28501#(and (<= y 162) (<= 162 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 28502#(and (<= 164 y) (<= y 164) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 28503#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 166) (<= 166 y)), 28504#(and (<= y 168) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 168 y)), 28505#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 170) (<= 170 y)), 28506#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 172 y) (<= y 172)), 28507#(and (<= 174 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 174)), 28508#(and (<= y 176) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 176 y)), 28509#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 178) (<= 178 y)), 28510#(and (<= 180 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 180)), 28511#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 182 y) (<= y 182)), 28512#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 28513#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 186 y) (<= y 186)), 28514#(and (<= y 188) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 188 y)), 28515#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 190 y) (<= y 190)), 28516#(and (<= 192 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 192)), 28517#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 194) (<= 194 y)), 28518#(and (<= y 196) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 196 y)), 28519#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 28520#(and (<= 200 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 200)), 28521#(and (<= y 202) (<= 202 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 28522#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 28523#(and (<= y 206) (<= 206 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 28524#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 208 y) (<= y 208)), 28525#(and (<= 210 y) (<= y 210) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 28526#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 212 y) (<= y 212)), 28527#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 214) (<= 214 y)), 28528#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 216) (<= 216 y)), 28529#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 28530#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 220 y) (<= y 220)), 28531#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 222) (<= 222 y)), 28532#(and (<= 224 y) (<= y 224) (or (<= (+ x 2) 0) (<= 0 x))), 28533#(and (<= 226 y) (<= y 226) (or (<= 2 x) (<= x 0))), 28534#(and (or (<= 4 x) (<= x 2)) (<= y 228) (<= 228 y)), 28535#(and (or (<= x 4) (<= 6 x)) (<= 230 y) (<= y 230)), 28536#(and (<= 232 y) (or (<= 8 x) (<= x 6)) (<= y 232)), 28537#(and (<= 234 y) (or (<= x 8) (<= 10 x)) (<= y 234)), 28538#(and (or (<= 12 x) (<= x 10)) (<= 236 y) (<= y 236)), 28539#(and (<= y 238) (<= 238 y) (or (<= 14 x) (<= x 12))), 28540#(and (<= y 240) (<= 240 y) (or (<= x 14) (<= 16 x))), 28541#(and (<= 242 y) (or (<= 18 x) (<= x 16)) (<= y 242)), 28542#(and (<= y 244) (or (<= 20 x) (<= x 18)) (<= 244 y)), 28543#(and (or (<= 22 x) (<= x 20)) (<= 246 y) (<= y 246)), 28544#(and (or (<= 24 x) (<= x 22)) (<= y 248) (<= 248 y))] [2018-07-23 13:52:22,120 INFO L134 CoverageAnalysis]: Checked inductivity of 5356 backedges. 0 proven. 5356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,121 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:52:22,121 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:52:22,121 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=10921, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:22,122 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 106 states. [2018-07-23 13:52:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:23,299 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-07-23 13:52:23,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:52:23,299 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 105 [2018-07-23 13:52:23,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:23,299 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:52:23,300 INFO L226 Difference]: Without dead ends: 107 [2018-07-23 13:52:23,300 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=209, Invalid=10921, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-07-23 13:52:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-07-23 13:52:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-23 13:52:23,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-07-23 13:52:23,397 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2018-07-23 13:52:23,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:23,397 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-07-23 13:52:23,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:52:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-07-23 13:52:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 13:52:23,397 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:23,397 INFO L357 BasicCegarLoop]: trace histogram [104, 1, 1] [2018-07-23 13:52:23,398 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:23,398 INFO L82 PathProgramCache]: Analyzing trace with hash 748670151, now seen corresponding path program 104 times [2018-07-23 13:52:23,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,425 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,425 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:52:24,425 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,426 INFO L185 omatonBuilderFactory]: Interpolants [28975#true, 28976#false, 28977#(and (<= y 42) (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 93))) (<= 42 y)), 28978#(and (<= 44 y) (<= y 44) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 28979#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 46 y) (<= y 46)), 28980#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 28981#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 28982#(and (<= 52 y) (<= y 52) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 28983#(and (<= 54 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 54)), 28984#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 56) (<= 56 y)), 28985#(and (<= 58 y) (<= y 58) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 28986#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 60 y) (<= y 60)), 28987#(and (<= y 62) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 62 y)), 28988#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 28989#(and (<= 66 y) (<= y 66) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 28990#(and (<= 68 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 68)), 28991#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 70 y) (<= y 70)), 28992#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 72) (<= 72 y)), 28993#(and (<= y 74) (<= 74 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 28994#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 76) (<= 76 y)), 28995#(and (<= y 78) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 78 y)), 28996#(and (<= y 80) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 80 y)), 28997#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 28998#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 84 y) (<= y 84)), 28999#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 86 y) (<= y 86)), 29000#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 88) (<= 88 y)), 29001#(and (<= y 90) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 90 y)), 29002#(and (<= 92 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 92)), 29003#(and (<= 94 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 94)), 29004#(and (<= 96 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 96)), 29005#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 98) (<= 98 y)), 29006#(and (<= 100 y) (<= y 100) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 29007#(and (<= y 102) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 102 y)), 29008#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 104) (<= 104 y)), 29009#(and (<= 106 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 106)), 29010#(and (<= 108 y) (<= y 108) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 29011#(and (<= 110 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 110)), 29012#(and (<= y 112) (<= 112 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 29013#(and (<= 114 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 114)), 29014#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 116 y) (<= y 116)), 29015#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 118) (<= 118 y)), 29016#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 120) (<= 120 y)), 29017#(and (<= y 122) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 122 y)), 29018#(and (<= y 124) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 124 y)), 29019#(and (<= y 126) (<= 126 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 29020#(and (<= 128 y) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 128)), 29021#(and (<= y 130) (<= 130 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96)))), 29022#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 132) (<= 132 y)), 29023#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 134 y) (<= y 134)), 29024#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 136 y) (<= y 136)), 29025#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 138 y) (<= y 138)), 29026#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 29027#(and (<= 142 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 142)), 29028#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 29029#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 146) (<= 146 y)), 29030#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 29031#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 29032#(and (<= y 152) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 152 y)), 29033#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 29034#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 156 y) (<= y 156)), 29035#(and (<= y 158) (<= 158 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 29036#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 160 y) (<= y 160)), 29037#(and (<= y 162) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 162 y)), 29038#(and (<= 164 y) (<= y 164) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 29039#(and (<= y 166) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 166 y)), 29040#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 168) (<= 168 y)), 29041#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 170) (<= 170 y)), 29042#(and (<= 172 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 172)), 29043#(and (<= 174 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 174)), 29044#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 176) (<= 176 y)), 29045#(and (<= y 178) (<= 178 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 29046#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 180 y) (<= y 180)), 29047#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 182 y) (<= y 182)), 29048#(and (<= y 184) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 184 y)), 29049#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 29050#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 188) (<= 188 y)), 29051#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 29052#(and (<= 192 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 192)), 29053#(and (<= y 194) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 194 y)), 29054#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 196) (<= 196 y)), 29055#(and (<= 198 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 198)), 29056#(and (<= 200 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 200)), 29057#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 29058#(and (<= 204 y) (<= y 204) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 29059#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 29060#(and (<= 208 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 208)), 29061#(and (<= 210 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 210)), 29062#(and (<= 212 y) (<= y 212) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 29063#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 214) (<= 214 y)), 29064#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 216) (<= 216 y)), 29065#(and (<= y 218) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 218 y)), 29066#(and (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 220 y) (<= y 220)), 29067#(and (<= y 222) (<= 222 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 29068#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 224 y) (<= y 224)), 29069#(and (<= 226 y) (<= y 226) (or (<= (+ x 2) 0) (<= 0 x))), 29070#(and (<= y 228) (<= 228 y) (or (<= 2 x) (<= x 0))), 29071#(and (<= 230 y) (<= y 230) (or (<= 4 x) (<= x 2))), 29072#(and (or (<= x 4) (<= 6 x)) (<= 232 y) (<= y 232)), 29073#(and (<= 234 y) (<= y 234) (or (<= 8 x) (<= x 6))), 29074#(and (<= 236 y) (or (<= x 8) (<= 10 x)) (<= y 236)), 29075#(and (or (<= 12 x) (<= x 10)) (<= y 238) (<= 238 y)), 29076#(and (<= y 240) (<= 240 y) (or (<= 14 x) (<= x 12))), 29077#(and (<= 242 y) (or (<= x 14) (<= 16 x)) (<= y 242)), 29078#(and (or (<= 18 x) (<= x 16)) (<= y 244) (<= 244 y)), 29079#(and (<= 246 y) (or (<= 20 x) (<= x 18)) (<= y 246)), 29080#(and (or (<= 22 x) (<= x 20)) (<= y 248) (<= 248 y)), 29081#(and (or (<= 24 x) (<= x 22)) (<= y 250) (<= 250 y))] [2018-07-23 13:52:24,426 INFO L134 CoverageAnalysis]: Checked inductivity of 5460 backedges. 0 proven. 5460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,426 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:52:24,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:52:24,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=11131, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:24,427 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 107 states. [2018-07-23 13:52:25,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,577 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:52:25,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:52:25,577 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 106 [2018-07-23 13:52:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,577 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:52:25,577 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:52:25,578 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=211, Invalid=11131, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:52:25,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:52:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:52:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:52:25,671 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 106 [2018-07-23 13:52:25,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,671 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:52:25,672 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:52:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:52:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:52:25,672 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,672 INFO L357 BasicCegarLoop]: trace histogram [105, 1, 1] [2018-07-23 13:52:25,672 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1733938145, now seen corresponding path program 105 times [2018-07-23 13:52:25,672 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:26,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,632 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:26,632 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:52:26,632 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,633 INFO L185 omatonBuilderFactory]: Interpolants [29516#true, 29517#false, 29518#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 94)) (<= x (* 2 (div x 2))))), 29519#(and (<= 44 y) (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 44)), 29520#(and (<= 46 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 46)), 29521#(and (<= y 48) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 48 y)), 29522#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 29523#(and (<= 52 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 52)), 29524#(and (<= 54 y) (<= y 54) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 29525#(and (<= y 56) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 56 y)), 29526#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 29527#(and (<= 60 y) (<= y 60) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 29528#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 62) (<= 62 y)), 29529#(and (<= y 64) (<= 64 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 29530#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 29531#(and (<= 68 y) (<= y 68) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 29532#(and (<= 70 y) (<= y 70) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 29533#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 72) (<= 72 y)), 29534#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 74) (<= 74 y)), 29535#(and (<= y 76) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 76 y)), 29536#(and (<= y 78) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 78 y)), 29537#(and (<= y 80) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 80 y)), 29538#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 29539#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 29540#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 86 y) (<= y 86)), 29541#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 88) (<= 88 y)), 29542#(and (<= y 90) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 90 y)), 29543#(and (<= 92 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 92)), 29544#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 29545#(and (<= 96 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 96)), 29546#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 98) (<= 98 y)), 29547#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 100 y) (<= y 100)), 29548#(and (<= y 102) (<= 102 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 29549#(and (<= y 104) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 104 y)), 29550#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 106 y) (<= y 106)), 29551#(and (<= 108 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 108)), 29552#(and (<= 110 y) (<= y 110) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 29553#(and (<= y 112) (<= 112 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 29554#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 114 y) (<= y 114)), 29555#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 116 y) (<= y 116)), 29556#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 118) (<= 118 y)), 29557#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 120) (<= 120 y)), 29558#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 122) (<= 122 y)), 29559#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 124) (<= 124 y)), 29560#(and (<= y 126) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 126 y)), 29561#(and (<= 128 y) (<= y 128) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 29562#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 130) (<= 130 y)), 29563#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 132) (<= 132 y)), 29564#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 134 y) (<= y 134)), 29565#(and (<= 136 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 136)), 29566#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 138 y) (<= y 138)), 29567#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 140 y) (<= y 140)), 29568#(and (<= 142 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 142)), 29569#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 29570#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 29571#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 148 y) (<= y 148)), 29572#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 29573#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 29574#(and (<= y 154) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 154 y)), 29575#(and (<= 156 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 156)), 29576#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 158) (<= 158 y)), 29577#(and (<= 160 y) (<= y 160) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 29578#(and (<= y 162) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 162 y)), 29579#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 164 y) (<= y 164)), 29580#(and (<= y 166) (<= 166 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 29581#(and (<= y 168) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 168 y)), 29582#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 170) (<= 170 y)), 29583#(and (<= 172 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 172)), 29584#(and (<= 174 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 174)), 29585#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 176) (<= 176 y)), 29586#(and (<= y 178) (<= 178 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 29587#(and (<= 180 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 180)), 29588#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 182 y) (<= y 182)), 29589#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 184) (<= 184 y)), 29590#(and (<= 186 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 186)), 29591#(and (<= y 188) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 188 y)), 29592#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 190 y) (<= y 190)), 29593#(and (<= 192 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 192)), 29594#(and (<= y 194) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 194 y)), 29595#(and (<= y 196) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 196 y)), 29596#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 198 y) (<= y 198)), 29597#(and (<= 200 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 200)), 29598#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 29599#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 29600#(and (<= y 206) (<= 206 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 29601#(and (<= 208 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 208)), 29602#(and (<= 210 y) (<= y 210) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 29603#(and (<= 212 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 212)), 29604#(and (<= y 214) (<= 214 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 29605#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 216) (<= 216 y)), 29606#(and (<= y 218) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 218 y)), 29607#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 220 y) (<= y 220)), 29608#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 29609#(and (<= 224 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 224)), 29610#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 226 y) (<= y 226)), 29611#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 228) (<= 228 y)), 29612#(and (<= 230 y) (<= y 230) (or (<= 2 x) (<= x 0))), 29613#(and (or (<= 4 x) (<= x 2)) (<= 232 y) (<= y 232)), 29614#(and (or (<= x 4) (<= 6 x)) (<= 234 y) (<= y 234)), 29615#(and (<= 236 y) (<= y 236) (or (<= 8 x) (<= x 6))), 29616#(and (<= y 238) (<= 238 y) (or (<= x 8) (<= 10 x))), 29617#(and (or (<= 12 x) (<= x 10)) (<= y 240) (<= 240 y)), 29618#(and (<= 242 y) (<= y 242) (or (<= 14 x) (<= x 12))), 29619#(and (<= y 244) (or (<= x 14) (<= 16 x)) (<= 244 y)), 29620#(and (or (<= 18 x) (<= x 16)) (<= 246 y) (<= y 246)), 29621#(and (<= y 248) (or (<= 20 x) (<= x 18)) (<= 248 y)), 29622#(and (or (<= 22 x) (<= x 20)) (<= y 250) (<= 250 y)), 29623#(and (or (<= 24 x) (<= x 22)) (<= y 252) (<= 252 y))] [2018-07-23 13:52:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5565 backedges. 0 proven. 5565 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,633 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:52:26,633 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:52:26,634 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=11343, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:26,634 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 108 states. [2018-07-23 13:52:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,759 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-07-23 13:52:27,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:52:27,760 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 107 [2018-07-23 13:52:27,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,760 INFO L225 Difference]: With dead ends: 110 [2018-07-23 13:52:27,760 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:52:27,761 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=213, Invalid=11343, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:27,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:52:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:52:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:52:27,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-07-23 13:52:27,862 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2018-07-23 13:52:27,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,863 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-07-23 13:52:27,863 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:52:27,863 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-07-23 13:52:27,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:52:27,863 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,863 INFO L357 BasicCegarLoop]: trace histogram [106, 1, 1] [2018-07-23 13:52:27,863 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,863 INFO L82 PathProgramCache]: Analyzing trace with hash -2082492409, now seen corresponding path program 106 times [2018-07-23 13:52:27,864 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,928 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,928 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:52:28,929 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,929 INFO L185 omatonBuilderFactory]: Interpolants [30062#true, 30063#false, 30064#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 95)) (<= x (* 2 (div x 2))))), 30065#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 30066#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 46 y) (<= y 46)), 30067#(and (<= y 48) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 48 y)), 30068#(and (<= y 50) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 50 y)), 30069#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 30070#(and (<= 54 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 54)), 30071#(and (<= y 56) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 56 y)), 30072#(and (<= 58 y) (<= y 58) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 30073#(and (<= 60 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 60)), 30074#(and (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 62) (<= 62 y)), 30075#(and (<= y 64) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 64 y)), 30076#(and (<= 66 y) (<= y 66) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 30077#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 30078#(and (<= 70 y) (<= y 70) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 30079#(and (<= y 72) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 72 y)), 30080#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 74) (<= 74 y)), 30081#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 76) (<= 76 y)), 30082#(and (<= y 78) (<= 78 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 30083#(and (<= y 80) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 80 y)), 30084#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 82) (<= 82 y)), 30085#(and (<= 84 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 84)), 30086#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 30087#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 88) (<= 88 y)), 30088#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 90) (<= 90 y)), 30089#(and (<= 92 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 92)), 30090#(and (<= 94 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 94)), 30091#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 30092#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 98) (<= 98 y)), 30093#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 100 y) (<= y 100)), 30094#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 102) (<= 102 y)), 30095#(and (<= y 104) (<= 104 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 30096#(and (<= 106 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 106)), 30097#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 108 y) (<= y 108)), 30098#(and (<= 110 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 110)), 30099#(and (<= y 112) (<= 112 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 30100#(and (<= 114 y) (<= y 114) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 30101#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 116 y) (<= y 116)), 30102#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 118) (<= 118 y)), 30103#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 120) (<= 120 y)), 30104#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 122) (<= 122 y)), 30105#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 124) (<= 124 y)), 30106#(and (<= y 126) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 126 y)), 30107#(and (<= 128 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 128)), 30108#(and (<= y 130) (<= 130 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 30109#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 132) (<= 132 y)), 30110#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 134 y) (<= y 134)), 30111#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 136 y) (<= y 136)), 30112#(and (<= 138 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 138)), 30113#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 140 y) (<= y 140)), 30114#(and (<= 142 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 142)), 30115#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 30116#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 146) (<= 146 y)), 30117#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 30118#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 150) (<= 150 y)), 30119#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 30120#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 30121#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 156 y) (<= y 156)), 30122#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 30123#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 160 y) (<= y 160)), 30124#(and (<= y 162) (<= 162 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 30125#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 164 y) (<= y 164)), 30126#(and (<= y 166) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 166 y)), 30127#(and (<= y 168) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 168 y)), 30128#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 170) (<= 170 y)), 30129#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 172 y) (<= y 172)), 30130#(and (<= 174 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 174)), 30131#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 176) (<= 176 y)), 30132#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 178) (<= 178 y)), 30133#(and (<= 180 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 180)), 30134#(and (<= 182 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 182)), 30135#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 184) (<= 184 y)), 30136#(and (<= 186 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 186)), 30137#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 188) (<= 188 y)), 30138#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 30139#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 192 y) (<= y 192)), 30140#(and (<= y 194) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 194 y)), 30141#(and (<= y 196) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 196 y)), 30142#(and (<= 198 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 198)), 30143#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 200 y) (<= y 200)), 30144#(and (<= y 202) (<= 202 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 30145#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 30146#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 30147#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 208 y) (<= y 208)), 30148#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 30149#(and (<= 212 y) (<= y 212) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 30150#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 214) (<= 214 y)), 30151#(and (<= y 216) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 216 y)), 30152#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 218) (<= 218 y)), 30153#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 220 y) (<= y 220)), 30154#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 30155#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 30156#(and (<= 226 y) (<= y 226) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 30157#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 228) (<= 228 y)), 30158#(and (<= 230 y) (<= y 230) (or (<= (+ x 2) 0) (<= 0 x))), 30159#(and (<= 232 y) (<= y 232) (or (<= 2 x) (<= x 0))), 30160#(and (<= 234 y) (or (<= 4 x) (<= x 2)) (<= y 234)), 30161#(and (or (<= x 4) (<= 6 x)) (<= 236 y) (<= y 236)), 30162#(and (<= y 238) (<= 238 y) (or (<= 8 x) (<= x 6))), 30163#(and (<= y 240) (<= 240 y) (or (<= x 8) (<= 10 x))), 30164#(and (or (<= 12 x) (<= x 10)) (<= 242 y) (<= y 242)), 30165#(and (<= y 244) (<= 244 y) (or (<= 14 x) (<= x 12))), 30166#(and (<= 246 y) (or (<= x 14) (<= 16 x)) (<= y 246)), 30167#(and (or (<= 18 x) (<= x 16)) (<= y 248) (<= 248 y)), 30168#(and (or (<= 20 x) (<= x 18)) (<= y 250) (<= 250 y)), 30169#(and (or (<= 22 x) (<= x 20)) (<= y 252) (<= 252 y)), 30170#(and (or (<= 24 x) (<= x 22)) (<= 254 y) (<= y 254))] [2018-07-23 13:52:28,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5671 backedges. 0 proven. 5671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,930 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:52:28,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:52:28,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=11557, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:28,931 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 109 states. [2018-07-23 13:52:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,135 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:52:30,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:52:30,135 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 108 [2018-07-23 13:52:30,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,135 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:52:30,135 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:52:30,136 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=215, Invalid=11557, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:30,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:52:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:52:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:52:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:52:30,239 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 108 [2018-07-23 13:52:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,239 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:52:30,239 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:52:30,239 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:52:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:52:30,240 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,240 INFO L357 BasicCegarLoop]: trace histogram [107, 1, 1] [2018-07-23 13:52:30,240 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,240 INFO L82 PathProgramCache]: Analyzing trace with hash -132755295, now seen corresponding path program 107 times [2018-07-23 13:52:30,241 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,340 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,340 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:52:31,340 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,341 INFO L185 omatonBuilderFactory]: Interpolants [30720#(and (or (<= 20 x) (<= x 18)) (<= y 252) (<= 252 y)), 30721#(and (or (<= 22 x) (<= x 20)) (<= 254 y) (<= y 254)), 30722#(and (or (<= 24 x) (<= x 22)) (<= y 256) (<= 256 y)), 30613#true, 30614#false, 30615#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 96)) (<= x (* 2 (div x 2))))), 30616#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 188)) (<= (+ x 190) 0))), 30617#(and (<= 46 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 46)), 30618#(and (<= y 48) (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 48 y)), 30619#(and (<= y 50) (<= 50 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 30620#(and (<= 52 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 52)), 30621#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 30622#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 56) (<= 56 y)), 30623#(and (<= 58 y) (<= y 58) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 30624#(and (<= 60 y) (<= y 60) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 30625#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 62) (<= 62 y)), 30626#(and (<= y 64) (<= 64 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 30627#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 66 y) (<= y 66)), 30628#(and (<= 68 y) (<= y 68) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 30629#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 30630#(and (<= y 72) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 72 y)), 30631#(and (<= y 74) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 74 y)), 30632#(and (<= y 76) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 76 y)), 30633#(and (<= y 78) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 78 y)), 30634#(and (<= y 80) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 80 y)), 30635#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 82) (<= 82 y)), 30636#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 84 y) (<= y 84)), 30637#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 30638#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 30639#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 90) (<= 90 y)), 30640#(and (<= 92 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 92)), 30641#(and (<= 94 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 94)), 30642#(and (<= 96 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 96)), 30643#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 30644#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 100 y) (<= y 100)), 30645#(and (<= y 102) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 102 y)), 30646#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 104) (<= 104 y)), 30647#(and (<= 106 y) (<= y 106) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 30648#(and (<= 108 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 108)), 30649#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 110 y) (<= y 110)), 30650#(and (<= y 112) (<= 112 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 30651#(and (<= 114 y) (<= y 114) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 30652#(and (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 116 y) (<= y 116)), 30653#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 118) (<= 118 y)), 30654#(and (<= y 120) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 120 y)), 30655#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 122) (<= 122 y)), 30656#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 124) (<= 124 y)), 30657#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 126) (<= 126 y)), 30658#(and (<= 128 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 128)), 30659#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 30660#(and (<= y 132) (<= 132 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 30661#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 134 y) (<= y 134)), 30662#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 136 y) (<= y 136)), 30663#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 138 y) (<= y 138)), 30664#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 140 y) (<= y 140)), 30665#(and (<= 142 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 142)), 30666#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 144) (<= 144 y)), 30667#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 146) (<= 146 y)), 30668#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 30669#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 30670#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 152) (<= 152 y)), 30671#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 30672#(and (<= 156 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 156)), 30673#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 158) (<= 158 y)), 30674#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 30675#(and (<= y 162) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 162 y)), 30676#(and (<= 164 y) (<= y 164) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 30677#(and (<= y 166) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 166 y)), 30678#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 168) (<= 168 y)), 30679#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 170) (<= 170 y)), 30680#(and (<= 172 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 172)), 30681#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 174 y) (<= y 174)), 30682#(and (<= y 176) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 176 y)), 30683#(and (<= y 178) (<= 178 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 30684#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 180 y) (<= y 180)), 30685#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 182 y) (<= y 182)), 30686#(and (<= y 184) (<= 184 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 30687#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 186 y) (<= y 186)), 30688#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 188) (<= 188 y)), 30689#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 190 y) (<= y 190)), 30690#(and (<= 192 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 192)), 30691#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 194) (<= 194 y)), 30692#(and (<= y 196) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 196 y)), 30693#(and (<= 198 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 198)), 30694#(and (<= 200 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 200)), 30695#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 202) (<= 202 y)), 30696#(and (<= 204 y) (<= y 204) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 30697#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 30698#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 208 y) (<= y 208)), 30699#(and (<= 210 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 210)), 30700#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 30701#(and (<= y 214) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 214 y)), 30702#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 216) (<= 216 y)), 30703#(and (<= y 218) (<= 218 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 30704#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 220 y) (<= y 220)), 30705#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 30706#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 30707#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 30708#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 228) (<= 228 y)), 30709#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 230 y) (<= y 230)), 30710#(and (<= 232 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 232)), 30711#(and (<= 234 y) (<= y 234) (or (<= 2 x) (<= x 0))), 30712#(and (<= 236 y) (or (<= 4 x) (<= x 2)) (<= y 236)), 30713#(and (or (<= x 4) (<= 6 x)) (<= y 238) (<= 238 y)), 30714#(and (<= y 240) (<= 240 y) (or (<= 8 x) (<= x 6))), 30715#(and (<= 242 y) (or (<= x 8) (<= 10 x)) (<= y 242)), 30716#(and (or (<= 12 x) (<= x 10)) (<= y 244) (<= 244 y)), 30717#(and (<= 246 y) (<= y 246) (or (<= 14 x) (<= x 12))), 30718#(and (<= y 248) (<= 248 y) (or (<= x 14) (<= 16 x))), 30719#(and (or (<= 18 x) (<= x 16)) (<= y 250) (<= 250 y))] [2018-07-23 13:52:31,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,342 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:52:31,342 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:52:31,342 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=11773, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:31,342 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 110 states. [2018-07-23 13:52:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:32,619 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-07-23 13:52:32,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:52:32,619 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 109 [2018-07-23 13:52:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:32,620 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:52:32,620 INFO L226 Difference]: Without dead ends: 111 [2018-07-23 13:52:32,620 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=217, Invalid=11773, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-07-23 13:52:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-07-23 13:52:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:52:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-07-23 13:52:32,724 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 109 [2018-07-23 13:52:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:32,724 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-07-23 13:52:32,724 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:52:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-07-23 13:52:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:52:32,724 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:32,725 INFO L357 BasicCegarLoop]: trace histogram [108, 1, 1] [2018-07-23 13:52:32,725 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:32,725 INFO L82 PathProgramCache]: Analyzing trace with hash 179553095, now seen corresponding path program 108 times [2018-07-23 13:52:32,725 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,861 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,861 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:52:33,861 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,862 INFO L185 omatonBuilderFactory]: Interpolants [31232#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 164 y) (<= y 164)), 31233#(and (<= y 166) (<= 166 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 31234#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 168) (<= 168 y)), 31235#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 170) (<= 170 y)), 31236#(and (<= 172 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 172)), 31237#(and (<= 174 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 174)), 31238#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 176) (<= 176 y)), 31239#(and (<= y 178) (<= 178 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 31240#(and (<= 180 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 180)), 31241#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 182 y) (<= y 182)), 31242#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 184) (<= 184 y)), 31243#(and (<= 186 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 186)), 31244#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 188) (<= 188 y)), 31245#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 190 y) (<= y 190)), 31246#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 192 y) (<= y 192)), 31247#(and (<= y 194) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 194 y)), 31248#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 196) (<= 196 y)), 31249#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 31250#(and (<= 200 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 200)), 31251#(and (<= y 202) (<= 202 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 31252#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 204 y) (<= y 204)), 31253#(and (<= y 206) (<= 206 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 31254#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 208 y) (<= y 208)), 31255#(and (<= 210 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 210)), 31256#(and (<= 212 y) (<= y 212) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 31257#(and (<= y 214) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 214 y)), 31258#(and (<= y 216) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 216 y)), 31259#(and (<= y 218) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 218 y)), 31260#(and (<= 220 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= y 220)), 31261#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 222) (<= 222 y)), 31262#(and (<= 224 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 224)), 31263#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 31264#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 31265#(and (<= 230 y) (<= y 230) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 31266#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 232 y) (<= y 232)), 31267#(and (<= 234 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 234)), 31268#(and (<= 236 y) (<= y 236) (or (<= 2 x) (<= x 0))), 31269#(and (<= y 238) (<= 238 y) (or (<= 4 x) (<= x 2))), 31270#(and (or (<= x 4) (<= 6 x)) (<= y 240) (<= 240 y)), 31271#(and (<= 242 y) (or (<= 8 x) (<= x 6)) (<= y 242)), 31272#(and (or (<= x 8) (<= 10 x)) (<= y 244) (<= 244 y)), 31273#(and (or (<= 12 x) (<= x 10)) (<= 246 y) (<= y 246)), 31274#(and (<= y 248) (<= 248 y) (or (<= 14 x) (<= x 12))), 31275#(and (<= y 250) (or (<= x 14) (<= 16 x)) (<= 250 y)), 31276#(and (or (<= 18 x) (<= x 16)) (<= y 252) (<= 252 y)), 31277#(and (or (<= 20 x) (<= x 18)) (<= 254 y) (<= y 254)), 31278#(and (or (<= 22 x) (<= x 20)) (<= y 256) (<= 256 y)), 31279#(and (or (<= 24 x) (<= x 22)) (<= y 258) (<= 258 y)), 31169#true, 31170#false, 31171#(and (or (< 0 (+ (div x 2) 97)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 31172#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 190)) (<= (+ x 192) 0))), 31173#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 46 y) (<= y 46)), 31174#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 31175#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 50) (<= 50 y)), 31176#(and (<= 52 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 52)), 31177#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 54 y) (<= y 54)), 31178#(and (<= y 56) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 56 y)), 31179#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 31180#(and (<= 60 y) (<= y 60) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 31181#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 62) (<= 62 y)), 31182#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 31183#(and (<= 66 y) (<= y 66) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 31184#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 68 y) (<= y 68)), 31185#(and (<= 70 y) (<= y 70) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 31186#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 31187#(and (<= y 74) (<= 74 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 31188#(and (<= y 76) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 76 y)), 31189#(and (<= y 78) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 78 y)), 31190#(and (<= y 80) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 80 y)), 31191#(and (<= y 82) (<= 82 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 31192#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 84 y) (<= y 84)), 31193#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 86 y) (<= y 86)), 31194#(and (<= y 88) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 88 y)), 31195#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 31196#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 92 y) (<= y 92)), 31197#(and (<= 94 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 94)), 31198#(and (<= 96 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 96)), 31199#(and (<= y 98) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 98 y)), 31200#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 31201#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 102) (<= 102 y)), 31202#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 104) (<= 104 y)), 31203#(and (<= 106 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 106)), 31204#(and (<= 108 y) (<= y 108) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 31205#(and (<= 110 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 110)), 31206#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 112) (<= 112 y)), 31207#(and (<= 114 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 114)), 31208#(and (<= 116 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= y 116)), 31209#(and (<= y 118) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 118 y)), 31210#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 120) (<= 120 y)), 31211#(and (<= y 122) (<= 122 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 31212#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 124) (<= 124 y)), 31213#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 126) (<= 126 y)), 31214#(and (<= 128 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 128)), 31215#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0))), 31216#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 132) (<= 132 y)), 31217#(and (<= 134 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 134)), 31218#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 136 y) (<= y 136)), 31219#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 138 y) (<= y 138)), 31220#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 140 y) (<= y 140)), 31221#(and (<= 142 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 142)), 31222#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 144) (<= 144 y)), 31223#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 146) (<= 146 y)), 31224#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 31225#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 150) (<= 150 y)), 31226#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 31227#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 154) (<= 154 y)), 31228#(and (<= 156 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 156)), 31229#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 31230#(and (<= 160 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 160)), 31231#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)))] [2018-07-23 13:52:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5886 backedges. 0 proven. 5886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,862 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:52:33,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:52:33,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=11991, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:33,864 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 111 states. [2018-07-23 13:52:35,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:35,144 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:52:35,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:52:35,144 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 110 [2018-07-23 13:52:35,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:35,145 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:52:35,145 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:52:35,146 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=11991, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:52:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:52:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:52:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:52:35,251 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-07-23 13:52:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:35,251 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:52:35,251 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:52:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:52:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:52:35,252 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:35,252 INFO L357 BasicCegarLoop]: trace histogram [109, 1, 1] [2018-07-23 13:52:35,252 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:35,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1271178593, now seen corresponding path program 109 times [2018-07-23 13:52:35,252 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,414 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:36,415 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:52:36,415 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,416 INFO L185 omatonBuilderFactory]: Interpolants [31744#(and (<= 66 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 66)), 31745#(and (<= 68 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 68)), 31746#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 70 y) (<= y 70)), 31747#(and (<= y 72) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 72 y)), 31748#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 31749#(and (<= y 76) (<= 76 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 31750#(and (<= y 78) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 78 y)), 31751#(and (<= y 80) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 80 y)), 31752#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 82) (<= 82 y)), 31753#(and (<= 84 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 84)), 31754#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 86 y) (<= y 86)), 31755#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 88) (<= 88 y)), 31756#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 31757#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 31758#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 94 y) (<= y 94)), 31759#(and (<= 96 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 96)), 31760#(and (<= y 98) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 98 y)), 31761#(and (<= 100 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 100)), 31762#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 31763#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 104) (<= 104 y)), 31764#(and (<= 106 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 106)), 31765#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 108 y) (<= y 108)), 31766#(and (<= 110 y) (<= y 110) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 31767#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 31768#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 114 y) (<= y 114)), 31769#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 116 y) (<= y 116)), 31770#(and (<= y 118) (<= 118 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 31771#(and (<= y 120) (<= 120 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 31772#(and (<= y 122) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 122 y)), 31773#(and (<= y 124) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 124 y)), 31774#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 126) (<= 126 y)), 31775#(and (<= 128 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 128)), 31776#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0))), 31777#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 132) (<= 132 y)), 31778#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 134 y) (<= y 134)), 31779#(and (<= 136 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 136)), 31780#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 138 y) (<= y 138)), 31781#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 140 y) (<= y 140)), 31782#(and (<= 142 y) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 142)), 31783#(and (<= y 144) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 144 y)), 31784#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 146) (<= 146 y)), 31785#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 148 y) (<= y 148)), 31786#(and (<= y 150) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 150 y)), 31787#(and (<= y 152) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 152 y)), 31788#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 31789#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 156 y) (<= y 156)), 31790#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 31791#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 31792#(and (<= y 162) (<= 162 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 31793#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 31794#(and (<= y 166) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 166 y)), 31795#(and (<= y 168) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 168 y)), 31796#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 170) (<= 170 y)), 31797#(and (<= 172 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 172)), 31798#(and (<= 174 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 174)), 31799#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 176) (<= 176 y)), 31800#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 178) (<= 178 y)), 31801#(and (<= 180 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 180)), 31802#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 182 y) (<= y 182)), 31803#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 184) (<= 184 y)), 31804#(and (<= 186 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 186)), 31805#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 188) (<= 188 y)), 31806#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 190 y) (<= y 190)), 31807#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 192 y) (<= y 192)), 31808#(and (<= y 194) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 194 y)), 31809#(and (<= y 196) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 196 y)), 31810#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 198 y) (<= y 198)), 31811#(and (<= 200 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 200)), 31812#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 31813#(and (<= 204 y) (<= y 204) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 31814#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 206) (<= 206 y)), 31815#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 208 y) (<= y 208)), 31816#(and (<= 210 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 210)), 31817#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 31818#(and (<= y 214) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 214 y)), 31819#(and (<= y 216) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 216 y)), 31820#(and (<= y 218) (<= 218 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 31821#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 220 y) (<= y 220)), 31822#(and (<= y 222) (<= 222 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 31823#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 224 y) (<= y 224)), 31824#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 31825#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 228) (<= 228 y)), 31826#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 31827#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 232 y) (<= y 232)), 31828#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 234 y) (<= y 234)), 31829#(and (<= 236 y) (<= y 236) (or (<= (+ x 2) 0) (<= 0 x))), 31830#(and (<= y 238) (<= 238 y) (or (<= 2 x) (<= x 0))), 31831#(and (<= y 240) (<= 240 y) (or (<= 4 x) (<= x 2))), 31832#(and (or (<= x 4) (<= 6 x)) (<= 242 y) (<= y 242)), 31833#(and (<= y 244) (or (<= 8 x) (<= x 6)) (<= 244 y)), 31834#(and (or (<= x 8) (<= 10 x)) (<= 246 y) (<= y 246)), 31835#(and (or (<= 12 x) (<= x 10)) (<= y 248) (<= 248 y)), 31836#(and (<= y 250) (or (<= 14 x) (<= x 12)) (<= 250 y)), 31837#(and (<= y 252) (or (<= x 14) (<= 16 x)) (<= 252 y)), 31838#(and (or (<= 18 x) (<= x 16)) (<= 254 y) (<= y 254)), 31839#(and (<= y 256) (or (<= 20 x) (<= x 18)) (<= 256 y)), 31840#(and (or (<= 22 x) (<= x 20)) (<= y 258) (<= 258 y)), 31841#(and (<= y 260) (or (<= 24 x) (<= x 22)) (<= 260 y)), 31730#true, 31731#false, 31732#(and (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 98))) (<= y 42) (<= 42 y)), 31733#(and (<= 44 y) (<= y 44) (or (<= (+ x 194) 0) (<= 0 (+ x 192)))), 31734#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 46 y) (<= y 46)), 31735#(and (<= y 48) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 48 y)), 31736#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 31737#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 52 y) (<= y 52)), 31738#(and (<= 54 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 54)), 31739#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 56) (<= 56 y)), 31740#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 31741#(and (<= 60 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 60)), 31742#(and (<= y 62) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 62 y)), 31743#(and (<= y 64) (<= 64 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))))] [2018-07-23 13:52:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5995 backedges. 0 proven. 5995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,417 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:52:36,417 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:52:36,418 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=12211, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:36,418 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 112 states. [2018-07-23 13:52:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:37,719 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-07-23 13:52:37,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:52:37,719 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 111 [2018-07-23 13:52:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:37,719 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:52:37,719 INFO L226 Difference]: Without dead ends: 113 [2018-07-23 13:52:37,720 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=221, Invalid=12211, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-07-23 13:52:37,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-07-23 13:52:37,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 13:52:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-07-23 13:52:37,829 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-07-23 13:52:37,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:37,829 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-07-23 13:52:37,829 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:52:37,830 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-07-23 13:52:37,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 13:52:37,830 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:37,830 INFO L357 BasicCegarLoop]: trace histogram [110, 1, 1] [2018-07-23 13:52:37,830 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:37,830 INFO L82 PathProgramCache]: Analyzing trace with hash 751830663, now seen corresponding path program 110 times [2018-07-23 13:52:37,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,977 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:38,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:52:38,977 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:38,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,978 INFO L185 omatonBuilderFactory]: Interpolants [32296#true, 32297#false, 32298#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 99)) (<= x (* 2 (div x 2))))), 32299#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 32300#(and (<= 46 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 46)), 32301#(and (<= y 48) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 48 y)), 32302#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0))), 32303#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 32304#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 54 y) (<= y 54)), 32305#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 56) (<= 56 y)), 32306#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 180)) (<= (+ x 182) 0))), 32307#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 32308#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 62) (<= 62 y)), 32309#(and (<= y 64) (<= 64 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 32310#(and (<= 66 y) (<= y 66) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 32311#(and (<= 68 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 68)), 32312#(and (<= 70 y) (<= y 70) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 32313#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 72) (<= 72 y)), 32314#(and (<= y 74) (<= 74 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 32315#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 32316#(and (<= y 78) (<= 78 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 32317#(and (<= y 80) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 80 y)), 32318#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 82) (<= 82 y)), 32319#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 84 y) (<= y 84)), 32320#(and (<= 86 y) (<= y 86) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 32321#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 88) (<= 88 y)), 32322#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 90) (<= 90 y)), 32323#(and (<= 92 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 92)), 32324#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 32325#(and (<= 96 y) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 96)), 32326#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 98) (<= 98 y)), 32327#(and (<= 100 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 100)), 32328#(and (<= y 102) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 102 y)), 32329#(and (<= y 104) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 104 y)), 32330#(and (<= 106 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 106)), 32331#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 108 y) (<= y 108)), 32332#(and (<= 110 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 110)), 32333#(and (<= y 112) (<= 112 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 32334#(and (<= 114 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 114)), 32335#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 116 y) (<= y 116)), 32336#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 118) (<= 118 y)), 32337#(and (<= y 120) (<= 120 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 32338#(and (<= y 122) (<= 122 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 32339#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 124) (<= 124 y)), 32340#(and (<= y 126) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 126 y)), 32341#(and (<= 128 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 128)), 32342#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 130) (<= 130 y)), 32343#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 132) (<= 132 y)), 32344#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 134 y) (<= y 134)), 32345#(and (<= 136 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 136)), 32346#(and (<= 138 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 138)), 32347#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 140 y) (<= y 140)), 32348#(and (<= 142 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 142)), 32349#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 144) (<= 144 y)), 32350#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 146) (<= 146 y)), 32351#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 148 y) (<= y 148)), 32352#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 150) (<= 150 y)), 32353#(and (<= y 152) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 152 y)), 32354#(and (<= y 154) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 154 y)), 32355#(and (<= 156 y) (<= y 156) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 32356#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 158) (<= 158 y)), 32357#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 32358#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 32359#(and (<= 164 y) (<= y 164) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 32360#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 32361#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 168) (<= 168 y)), 32362#(and (<= y 170) (<= 170 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 32363#(and (<= 172 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 172)), 32364#(and (<= 174 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 174)), 32365#(and (<= y 176) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 176 y)), 32366#(and (<= y 178) (<= 178 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 32367#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 180 y) (<= y 180)), 32368#(and (<= 182 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 182)), 32369#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 184) (<= 184 y)), 32370#(and (<= 186 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 186)), 32371#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 188) (<= 188 y)), 32372#(and (<= 190 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 190)), 32373#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 192 y) (<= y 192)), 32374#(and (<= y 194) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 194 y)), 32375#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 196) (<= 196 y)), 32376#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 32377#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 200 y) (<= y 200)), 32378#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 32379#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 32380#(and (<= y 206) (<= 206 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 32381#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 208 y) (<= y 208)), 32382#(and (<= 210 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 210)), 32383#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 32384#(and (<= y 214) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 214 y)), 32385#(and (<= y 216) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 216 y)), 32386#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 32387#(and (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 220 y) (<= y 220)), 32388#(and (<= y 222) (<= 222 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 32389#(and (<= 224 y) (<= y 224) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 32390#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 226 y) (<= y 226)), 32391#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 228) (<= 228 y)), 32392#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 32393#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 32394#(and (<= 234 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 234)), 32395#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 236 y) (<= y 236)), 32396#(and (<= y 238) (<= 238 y) (or (<= (+ x 2) 0) (<= 0 x))), 32397#(and (<= y 240) (<= 240 y) (or (<= 2 x) (<= x 0))), 32398#(and (<= 242 y) (or (<= 4 x) (<= x 2)) (<= y 242)), 32399#(and (or (<= x 4) (<= 6 x)) (<= y 244) (<= 244 y)), 32400#(and (<= 246 y) (or (<= 8 x) (<= x 6)) (<= y 246)), 32401#(and (<= y 248) (or (<= x 8) (<= 10 x)) (<= 248 y)), 32402#(and (or (<= 12 x) (<= x 10)) (<= y 250) (<= 250 y)), 32403#(and (<= y 252) (<= 252 y) (or (<= 14 x) (<= x 12))), 32404#(and (or (<= x 14) (<= 16 x)) (<= 254 y) (<= y 254)), 32405#(and (or (<= 18 x) (<= x 16)) (<= y 256) (<= 256 y)), 32406#(and (or (<= 20 x) (<= x 18)) (<= y 258) (<= 258 y)), 32407#(and (<= y 260) (or (<= 22 x) (<= x 20)) (<= 260 y)), 32408#(and (<= 262 y) (or (<= 24 x) (<= x 22)) (<= y 262))] [2018-07-23 13:52:38,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6105 backedges. 0 proven. 6105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,979 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:52:38,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:52:38,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=12433, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:38,980 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 113 states. [2018-07-23 13:52:40,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:40,314 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:52:40,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:52:40,315 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 112 [2018-07-23 13:52:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:40,315 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:52:40,315 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:52:40,316 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=12433, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:40,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:52:40,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:52:40,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:52:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:52:40,448 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-07-23 13:52:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:40,448 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:52:40,449 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:52:40,449 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:52:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:52:40,449 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:40,449 INFO L357 BasicCegarLoop]: trace histogram [111, 1, 1] [2018-07-23 13:52:40,449 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1831914017, now seen corresponding path program 111 times [2018-07-23 13:52:40,449 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,649 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,649 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:52:41,649 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,650 INFO L185 omatonBuilderFactory]: Interpolants [32867#true, 32868#false, 32869#(and (<= y 42) (or (< 0 (+ (div x 2) 100)) (<= x (* 2 (div x 2)))) (<= 42 y)), 32870#(and (<= 44 y) (<= y 44) (or (<= (+ x 198) 0) (<= 0 (+ x 196)))), 32871#(and (<= 46 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0)) (<= y 46)), 32872#(and (<= y 48) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 48 y)), 32873#(and (<= y 50) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 50 y)), 32874#(and (<= 52 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 52)), 32875#(and (<= 54 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 54)), 32876#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 56) (<= 56 y)), 32877#(and (<= 58 y) (<= y 58) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 32878#(and (<= 60 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 60)), 32879#(and (<= y 62) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 62 y)), 32880#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 32881#(and (<= 66 y) (<= y 66) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 32882#(and (<= 68 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 68)), 32883#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 70 y) (<= y 70)), 32884#(and (<= y 72) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 72 y)), 32885#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 74) (<= 74 y)), 32886#(and (<= y 76) (<= 76 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 32887#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 32888#(and (<= y 80) (<= 80 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 32889#(and (<= y 82) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 82 y)), 32890#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 84 y) (<= y 84)), 32891#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 86 y) (<= y 86)), 32892#(and (<= y 88) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 88 y)), 32893#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 90) (<= 90 y)), 32894#(and (<= 92 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 92)), 32895#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 32896#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 32897#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 98) (<= 98 y)), 32898#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 100 y) (<= y 100)), 32899#(and (<= y 102) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 102 y)), 32900#(and (<= y 104) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 104 y)), 32901#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 32902#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 108 y) (<= y 108)), 32903#(and (<= 110 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 110)), 32904#(and (<= y 112) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 112 y)), 32905#(and (<= 114 y) (<= y 114) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 32906#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 116 y) (<= y 116)), 32907#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 118) (<= 118 y)), 32908#(and (<= y 120) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 120 y)), 32909#(and (<= y 122) (<= 122 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 32910#(and (<= y 124) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 124 y)), 32911#(and (<= y 126) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 126 y)), 32912#(and (<= 128 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 128)), 32913#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0))), 32914#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 132) (<= 132 y)), 32915#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 134 y) (<= y 134)), 32916#(and (<= 136 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 136)), 32917#(and (<= 138 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 138)), 32918#(and (<= 140 y) (<= y 140) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 32919#(and (<= 142 y) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 142)), 32920#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 144) (<= 144 y)), 32921#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 146) (<= 146 y)), 32922#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 148 y) (<= y 148)), 32923#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 150) (<= 150 y)), 32924#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 152) (<= 152 y)), 32925#(and (<= y 154) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 154 y)), 32926#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 156 y) (<= y 156)), 32927#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 32928#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 160 y) (<= y 160)), 32929#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 32930#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 32931#(and (<= y 166) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 166 y)), 32932#(and (<= y 168) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 168 y)), 32933#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 170) (<= 170 y)), 32934#(and (<= 172 y) (<= y 172) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 32935#(and (<= 174 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 174)), 32936#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 176) (<= 176 y)), 32937#(and (<= y 178) (<= 178 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 32938#(and (<= 180 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 180)), 32939#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 182 y) (<= y 182)), 32940#(and (<= y 184) (<= 184 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 32941#(and (<= 186 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 186)), 32942#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 188) (<= 188 y)), 32943#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 190 y) (<= y 190)), 32944#(and (<= 192 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 192)), 32945#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 194) (<= 194 y)), 32946#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 196) (<= 196 y)), 32947#(and (<= 198 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 198)), 32948#(and (<= 200 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 200)), 32949#(and (<= y 202) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 202 y)), 32950#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 32951#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 32952#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 208 y) (<= y 208)), 32953#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 210 y) (<= y 210)), 32954#(and (<= 212 y) (<= y 212) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 32955#(and (<= y 214) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 214 y)), 32956#(and (<= y 216) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 216 y)), 32957#(and (<= y 218) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 218 y)), 32958#(and (<= 220 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 220)), 32959#(and (<= y 222) (<= 222 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 32960#(and (<= 224 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 224)), 32961#(and (<= 226 y) (<= y 226) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 32962#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 228) (<= 228 y)), 32963#(and (<= 230 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 230)), 32964#(and (<= 232 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 232)), 32965#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 32966#(and (<= 236 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 236)), 32967#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 238) (<= 238 y)), 32968#(and (<= y 240) (<= 240 y) (or (<= (+ x 2) 0) (<= 0 x))), 32969#(and (<= 242 y) (<= y 242) (or (<= 2 x) (<= x 0))), 32970#(and (or (<= 4 x) (<= x 2)) (<= y 244) (<= 244 y)), 32971#(and (or (<= x 4) (<= 6 x)) (<= 246 y) (<= y 246)), 32972#(and (<= y 248) (<= 248 y) (or (<= 8 x) (<= x 6))), 32973#(and (or (<= x 8) (<= 10 x)) (<= y 250) (<= 250 y)), 32974#(and (or (<= 12 x) (<= x 10)) (<= y 252) (<= 252 y)), 32975#(and (<= 254 y) (<= y 254) (or (<= 14 x) (<= x 12))), 32976#(and (<= y 256) (or (<= x 14) (<= 16 x)) (<= 256 y)), 32977#(and (or (<= 18 x) (<= x 16)) (<= y 258) (<= 258 y)), 32978#(and (<= y 260) (<= 260 y) (or (<= 20 x) (<= x 18))), 32979#(and (<= 262 y) (or (<= 22 x) (<= x 20)) (<= y 262)), 32980#(and (<= y 264) (or (<= 24 x) (<= x 22)) (<= 264 y))] [2018-07-23 13:52:41,650 INFO L134 CoverageAnalysis]: Checked inductivity of 6216 backedges. 0 proven. 6216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,650 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:52:41,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:52:41,651 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=12657, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:41,651 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 114 states. [2018-07-23 13:52:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:42,965 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-07-23 13:52:42,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:52:42,966 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 113 [2018-07-23 13:52:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:42,966 INFO L225 Difference]: With dead ends: 116 [2018-07-23 13:52:42,966 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:52:42,967 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=225, Invalid=12657, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:42,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:52:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:52:43,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:52:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-07-23 13:52:43,078 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-07-23 13:52:43,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:43,078 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-07-23 13:52:43,079 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:52:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-07-23 13:52:43,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:52:43,079 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:43,079 INFO L357 BasicCegarLoop]: trace histogram [112, 1, 1] [2018-07-23 13:52:43,079 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:43,080 INFO L82 PathProgramCache]: Analyzing trace with hash 954759623, now seen corresponding path program 112 times [2018-07-23 13:52:43,080 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,265 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:44,265 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:52:44,265 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,266 INFO L185 omatonBuilderFactory]: Interpolants [33536#(and (<= 224 y) (<= y 224) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 33537#(and (<= 226 y) (<= y 226) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 33538#(and (<= y 228) (<= 228 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 33539#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 230 y) (<= y 230)), 33540#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 232 y) (<= y 232)), 33541#(and (<= 234 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 234)), 33542#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 33543#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 238) (<= 238 y)), 33544#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 240) (<= 240 y)), 33545#(and (<= 242 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 242)), 33546#(and (<= y 244) (<= 244 y) (or (<= 2 x) (<= x 0))), 33547#(and (or (<= 4 x) (<= x 2)) (<= 246 y) (<= y 246)), 33548#(and (or (<= x 4) (<= 6 x)) (<= y 248) (<= 248 y)), 33549#(and (<= y 250) (or (<= 8 x) (<= x 6)) (<= 250 y)), 33550#(and (or (<= x 8) (<= 10 x)) (<= y 252) (<= 252 y)), 33551#(and (or (<= 12 x) (<= x 10)) (<= 254 y) (<= y 254)), 33552#(and (<= y 256) (or (<= 14 x) (<= x 12)) (<= 256 y)), 33553#(and (<= y 258) (<= 258 y) (or (<= x 14) (<= 16 x))), 33554#(and (<= y 260) (or (<= 18 x) (<= x 16)) (<= 260 y)), 33555#(and (<= 262 y) (<= y 262) (or (<= 20 x) (<= x 18))), 33556#(and (<= y 264) (or (<= 22 x) (<= x 20)) (<= 264 y)), 33557#(and (<= y 266) (or (<= 24 x) (<= x 22)) (<= 266 y)), 33443#true, 33444#false, 33445#(and (or (< 0 (+ (div x 2) 101)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 33446#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 33447#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 46 y) (<= y 46)), 33448#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 33449#(and (<= y 50) (<= 50 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192)))), 33450#(and (<= 52 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 52)), 33451#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 54 y) (<= y 54)), 33452#(and (<= y 56) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 56 y)), 33453#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 58 y) (<= y 58)), 33454#(and (<= 60 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 60)), 33455#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 62) (<= 62 y)), 33456#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 33457#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 33458#(and (<= 68 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 68)), 33459#(and (<= 70 y) (<= y 70) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 33460#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 72) (<= 72 y)), 33461#(and (<= y 74) (<= 74 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 33462#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 76) (<= 76 y)), 33463#(and (<= y 78) (<= 78 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 33464#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 33465#(and (<= y 82) (<= 82 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 33466#(and (<= 84 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 84)), 33467#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 86 y) (<= y 86)), 33468#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 88) (<= 88 y)), 33469#(and (<= y 90) (<= 90 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 33470#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 92 y) (<= y 92)), 33471#(and (<= 94 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 94)), 33472#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 33473#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 33474#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 100 y) (<= y 100)), 33475#(and (<= y 102) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 102 y)), 33476#(and (<= y 104) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 104 y)), 33477#(and (<= 106 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 106)), 33478#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 33479#(and (<= 110 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 110)), 33480#(and (<= y 112) (<= 112 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130)))), 33481#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 114 y) (<= y 114)), 33482#(and (<= 116 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126))) (<= y 116)), 33483#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 118) (<= 118 y)), 33484#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 120) (<= 120 y)), 33485#(and (<= y 122) (<= 122 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 33486#(and (<= y 124) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= 124 y)), 33487#(and (<= y 126) (<= 126 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 33488#(and (<= 128 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 128)), 33489#(and (<= y 130) (<= 130 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 33490#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 132) (<= 132 y)), 33491#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 134 y) (<= y 134)), 33492#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 136 y) (<= y 136)), 33493#(and (<= 138 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 138)), 33494#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 33495#(and (<= 142 y) (<= y 142) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 33496#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 144) (<= 144 y)), 33497#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 146) (<= 146 y)), 33498#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 148 y) (<= y 148)), 33499#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 150) (<= 150 y)), 33500#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 152) (<= 152 y)), 33501#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 154) (<= 154 y)), 33502#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 156 y) (<= y 156)), 33503#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 158) (<= 158 y)), 33504#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 33505#(and (<= y 162) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 162 y)), 33506#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 33507#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 33508#(and (<= y 168) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 168 y)), 33509#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 33510#(and (<= 172 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 172)), 33511#(and (<= 174 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 174)), 33512#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 176) (<= 176 y)), 33513#(and (<= y 178) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 178 y)), 33514#(and (<= 180 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 180)), 33515#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 182 y) (<= y 182)), 33516#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 184) (<= 184 y)), 33517#(and (<= 186 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 186)), 33518#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 188) (<= 188 y)), 33519#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 190 y) (<= y 190)), 33520#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 192 y) (<= y 192)), 33521#(and (<= y 194) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 194 y)), 33522#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 196) (<= 196 y)), 33523#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 198 y) (<= y 198)), 33524#(and (<= 200 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 200)), 33525#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 33526#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 204 y) (<= y 204)), 33527#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 33528#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 208 y) (<= y 208)), 33529#(and (<= 210 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 210)), 33530#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 212 y) (<= y 212)), 33531#(and (<= y 214) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 214 y)), 33532#(and (<= y 216) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 216 y)), 33533#(and (<= y 218) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 218 y)), 33534#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 220 y) (<= y 220)), 33535#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)))] [2018-07-23 13:52:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6328 backedges. 0 proven. 6328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,267 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:52:44,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:52:44,268 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=12883, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:44,268 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 115 states. [2018-07-23 13:52:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:45,678 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:52:45,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:52:45,678 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 114 [2018-07-23 13:52:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:45,678 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:52:45,678 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:52:45,679 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=227, Invalid=12883, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:52:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:52:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:52:45,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:52:45,820 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 114 [2018-07-23 13:52:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:45,820 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:52:45,820 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:52:45,820 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:52:45,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:52:45,820 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:45,820 INFO L357 BasicCegarLoop]: trace histogram [113, 1, 1] [2018-07-23 13:52:45,821 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:45,821 INFO L82 PathProgramCache]: Analyzing trace with hash -467222815, now seen corresponding path program 113 times [2018-07-23 13:52:45,821 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:47,007 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:47,007 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:52:47,007 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:47,008 INFO L185 omatonBuilderFactory]: Interpolants [34048#(and (<= 86 y) (<= y 86) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 34049#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 88) (<= 88 y)), 34050#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 90) (<= 90 y)), 34051#(and (<= 92 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 92)), 34052#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 94 y) (<= y 94)), 34053#(and (<= 96 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 96)), 34054#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 34055#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 34056#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 102) (<= 102 y)), 34057#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 104) (<= 104 y)), 34058#(and (<= 106 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 106)), 34059#(and (<= 108 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 108)), 34060#(and (<= 110 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 110)), 34061#(and (<= y 112) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 112 y)), 34062#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 114 y) (<= y 114)), 34063#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 116 y) (<= y 116)), 34064#(and (<= y 118) (<= 118 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 34065#(and (<= y 120) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 120 y)), 34066#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 122) (<= 122 y)), 34067#(and (<= y 124) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 124 y)), 34068#(and (<= y 126) (<= 126 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 34069#(and (<= 128 y) (<= y 128) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 34070#(and (<= y 130) (<= 130 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 34071#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 132) (<= 132 y)), 34072#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 134 y) (<= y 134)), 34073#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 136 y) (<= y 136)), 34074#(and (<= 138 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 138)), 34075#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 140 y) (<= y 140)), 34076#(and (<= 142 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 142)), 34077#(and (<= y 144) (<= 144 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 34078#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 146) (<= 146 y)), 34079#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 148 y) (<= y 148)), 34080#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 150) (<= 150 y)), 34081#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 152) (<= 152 y)), 34082#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 154) (<= 154 y)), 34083#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 156 y) (<= y 156)), 34084#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 158) (<= 158 y)), 34085#(and (<= 160 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 160)), 34086#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 34087#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 164 y) (<= y 164)), 34088#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 34089#(and (<= y 168) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 168 y)), 34090#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 170) (<= 170 y)), 34091#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 34092#(and (<= 174 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 174)), 34093#(and (<= y 176) (<= 176 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 34094#(and (<= y 178) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 178 y)), 34095#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 180 y) (<= y 180)), 34096#(and (<= 182 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 182)), 34097#(and (<= y 184) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 184 y)), 34098#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 186 y) (<= y 186)), 34099#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 188) (<= 188 y)), 34100#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 190 y) (<= y 190)), 34101#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 192 y) (<= y 192)), 34102#(and (<= y 194) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 194 y)), 34103#(and (<= y 196) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 196 y)), 34104#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 198 y) (<= y 198)), 34105#(and (<= 200 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 200)), 34106#(and (<= y 202) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 202 y)), 34107#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 34108#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 206) (<= 206 y)), 34109#(and (<= 208 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 208)), 34110#(and (<= 210 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 210)), 34111#(and (<= 212 y) (<= y 212) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 34112#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 214) (<= 214 y)), 34113#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 216) (<= 216 y)), 34114#(and (<= y 218) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 218 y)), 34115#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 220 y) (<= y 220)), 34116#(and (<= y 222) (<= 222 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 34117#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 34118#(and (<= 226 y) (<= y 226) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 34119#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 228) (<= 228 y)), 34120#(and (<= 230 y) (<= y 230) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 34121#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 232 y) (<= y 232)), 34122#(and (<= 234 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 234)), 34123#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 34124#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 34125#(and (<= y 240) (<= 240 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 34126#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 242 y) (<= y 242)), 34127#(and (<= y 244) (or (<= (+ x 2) 0) (<= 0 x)) (<= 244 y)), 34128#(and (<= 246 y) (<= y 246) (or (<= 2 x) (<= x 0))), 34129#(and (<= y 248) (or (<= 4 x) (<= x 2)) (<= 248 y)), 34130#(and (or (<= x 4) (<= 6 x)) (<= y 250) (<= 250 y)), 34131#(and (<= y 252) (or (<= 8 x) (<= x 6)) (<= 252 y)), 34132#(and (or (<= x 8) (<= 10 x)) (<= 254 y) (<= y 254)), 34133#(and (or (<= 12 x) (<= x 10)) (<= y 256) (<= 256 y)), 34134#(and (<= y 258) (<= 258 y) (or (<= 14 x) (<= x 12))), 34135#(and (<= y 260) (<= 260 y) (or (<= x 14) (<= 16 x))), 34136#(and (<= 262 y) (or (<= 18 x) (<= x 16)) (<= y 262)), 34137#(and (<= y 264) (or (<= 20 x) (<= x 18)) (<= 264 y)), 34138#(and (<= y 266) (or (<= 22 x) (<= x 20)) (<= 266 y)), 34139#(and (<= y 268) (<= 268 y) (or (<= 24 x) (<= x 22))), 34024#true, 34025#false, 34026#(and (or (< 0 (+ (div x 2) 102)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 34027#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 34028#(and (<= 46 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 46)), 34029#(and (<= y 48) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 48 y)), 34030#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 34031#(and (<= 52 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 52)), 34032#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 54 y) (<= y 54)), 34033#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 56) (<= 56 y)), 34034#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 34035#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 60 y) (<= y 60)), 34036#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 62) (<= 62 y)), 34037#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0))), 34038#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 34039#(and (<= 68 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 68)), 34040#(and (<= 70 y) (<= y 70) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 34041#(and (<= y 72) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 72 y)), 34042#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 74) (<= 74 y)), 34043#(and (<= y 76) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 76 y)), 34044#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 78) (<= 78 y)), 34045#(and (<= y 80) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 80 y)), 34046#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 34047#(and (<= 84 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= y 84))] [2018-07-23 13:52:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 6441 backedges. 0 proven. 6441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:47,009 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:52:47,009 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:52:47,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=13111, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:47,010 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 116 states. [2018-07-23 13:52:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:48,426 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-07-23 13:52:48,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:52:48,426 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 115 [2018-07-23 13:52:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:48,427 INFO L225 Difference]: With dead ends: 118 [2018-07-23 13:52:48,427 INFO L226 Difference]: Without dead ends: 117 [2018-07-23 13:52:48,428 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=229, Invalid=13111, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-23 13:52:48,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-07-23 13:52:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:52:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-07-23 13:52:48,545 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 115 [2018-07-23 13:52:48,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:48,545 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-07-23 13:52:48,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:52:48,545 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-07-23 13:52:48,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:52:48,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:48,546 INFO L357 BasicCegarLoop]: trace histogram [114, 1, 1] [2018-07-23 13:52:48,546 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:48,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1599005433, now seen corresponding path program 114 times [2018-07-23 13:52:48,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,799 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:49,799 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:52:49,799 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:49,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,800 INFO L185 omatonBuilderFactory]: Interpolants [34610#true, 34611#false, 34612#(and (or (< 0 (+ (div x 2) 103)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 34613#(and (<= 44 y) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 44)), 34614#(and (<= 46 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 46)), 34615#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 34616#(and (<= y 50) (<= 50 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196)))), 34617#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 34618#(and (<= 54 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 54)), 34619#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 56) (<= 56 y)), 34620#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 188)) (<= (+ x 190) 0))), 34621#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 34622#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 62) (<= 62 y)), 34623#(and (<= y 64) (<= 64 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 34624#(and (<= 66 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 66)), 34625#(and (<= 68 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 68)), 34626#(and (<= 70 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 70)), 34627#(and (<= y 72) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 72 y)), 34628#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 74) (<= 74 y)), 34629#(and (<= y 76) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 76 y)), 34630#(and (<= y 78) (<= 78 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 34631#(and (<= y 80) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 80 y)), 34632#(and (<= y 82) (<= 82 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 34633#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 34634#(and (<= 86 y) (<= y 86) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 34635#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 88) (<= 88 y)), 34636#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 90) (<= 90 y)), 34637#(and (<= 92 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 92)), 34638#(and (<= 94 y) (<= y 94) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 34639#(and (<= 96 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 96)), 34640#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 98) (<= 98 y)), 34641#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 34642#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 34643#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 104) (<= 104 y)), 34644#(and (<= 106 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 106)), 34645#(and (<= 108 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 108)), 34646#(and (<= 110 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 110)), 34647#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 34648#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 114 y) (<= y 114)), 34649#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 116 y) (<= y 116)), 34650#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 118) (<= 118 y)), 34651#(and (<= y 120) (<= 120 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 34652#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 34653#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 124) (<= 124 y)), 34654#(and (<= y 126) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 126 y)), 34655#(and (<= 128 y) (<= y 128) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 34656#(and (<= y 130) (<= 130 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 34657#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 132) (<= 132 y)), 34658#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 134 y) (<= y 134)), 34659#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 136 y) (<= y 136)), 34660#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 138 y) (<= y 138)), 34661#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 140 y) (<= y 140)), 34662#(and (<= 142 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 142)), 34663#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 34664#(and (<= y 146) (<= 146 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 34665#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 148 y) (<= y 148)), 34666#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 150) (<= 150 y)), 34667#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 152) (<= 152 y)), 34668#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 154) (<= 154 y)), 34669#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 156 y) (<= y 156)), 34670#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 158) (<= 158 y)), 34671#(and (<= 160 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 160)), 34672#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 34673#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 34674#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 166) (<= 166 y)), 34675#(and (<= y 168) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 168 y)), 34676#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 34677#(and (<= 172 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 172)), 34678#(and (<= 174 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 174)), 34679#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 176) (<= 176 y)), 34680#(and (<= y 178) (<= 178 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 34681#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 180 y) (<= y 180)), 34682#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 182 y) (<= y 182)), 34683#(and (<= y 184) (<= 184 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 34684#(and (<= 186 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 186)), 34685#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 188) (<= 188 y)), 34686#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 190 y) (<= y 190)), 34687#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 192 y) (<= y 192)), 34688#(and (<= y 194) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 194 y)), 34689#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 196) (<= 196 y)), 34690#(and (<= 198 y) (<= y 198) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 34691#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 200 y) (<= y 200)), 34692#(and (<= y 202) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 202 y)), 34693#(and (<= 204 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 204)), 34694#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 34695#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 208 y) (<= y 208)), 34696#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 34697#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 34698#(and (<= y 214) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 214 y)), 34699#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 216) (<= 216 y)), 34700#(and (<= y 218) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 218 y)), 34701#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 220 y) (<= y 220)), 34702#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 34703#(and (<= 224 y) (<= y 224) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 34704#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 34705#(and (<= y 228) (<= 228 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 34706#(and (<= 230 y) (<= y 230) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 34707#(and (<= 232 y) (<= y 232) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 34708#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 234 y) (<= y 234)), 34709#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 236 y) (<= y 236)), 34710#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 34711#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 34712#(and (<= 242 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 242)), 34713#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 244) (<= 244 y)), 34714#(and (<= 246 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 246)), 34715#(and (<= y 248) (<= 248 y) (or (<= 2 x) (<= x 0))), 34716#(and (or (<= 4 x) (<= x 2)) (<= y 250) (<= 250 y)), 34717#(and (or (<= x 4) (<= 6 x)) (<= y 252) (<= 252 y)), 34718#(and (or (<= 8 x) (<= x 6)) (<= 254 y) (<= y 254)), 34719#(and (or (<= x 8) (<= 10 x)) (<= y 256) (<= 256 y)), 34720#(and (or (<= 12 x) (<= x 10)) (<= y 258) (<= 258 y)), 34721#(and (<= y 260) (<= 260 y) (or (<= 14 x) (<= x 12))), 34722#(and (<= 262 y) (<= y 262) (or (<= x 14) (<= 16 x))), 34723#(and (<= y 264) (or (<= 18 x) (<= x 16)) (<= 264 y)), 34724#(and (<= y 266) (or (<= 20 x) (<= x 18)) (<= 266 y)), 34725#(and (<= y 268) (<= 268 y) (or (<= 22 x) (<= x 20))), 34726#(and (<= y 270) (or (<= 24 x) (<= x 22)) (<= 270 y))] [2018-07-23 13:52:49,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6555 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,801 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:52:49,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:52:49,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=13341, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:49,802 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 117 states. [2018-07-23 13:52:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:51,217 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:52:51,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:52:51,218 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 116 [2018-07-23 13:52:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:51,218 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:52:51,218 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:52:51,219 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=231, Invalid=13341, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:51,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:52:51,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:52:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:52:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:52:51,337 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 116 [2018-07-23 13:52:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:51,338 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:52:51,338 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:52:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:52:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:52:51,338 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:51,338 INFO L357 BasicCegarLoop]: trace histogram [115, 1, 1] [2018-07-23 13:52:51,338 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:51,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1970439073, now seen corresponding path program 115 times [2018-07-23 13:52:51,339 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,621 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:52,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:52:52,621 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,622 INFO L185 omatonBuilderFactory]: Interpolants [35201#true, 35202#false, 35203#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 104)) (<= x (* 2 (div x 2))))), 35204#(and (<= 44 y) (<= y 44) (or (<= (+ x 206) 0) (<= 0 (+ x 204)))), 35205#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 46 y) (<= y 46)), 35206#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 35207#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 35208#(and (<= 52 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 52)), 35209#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 35210#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 56) (<= 56 y)), 35211#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 190)) (<= (+ x 192) 0))), 35212#(and (<= 60 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 60)), 35213#(and (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 62) (<= 62 y)), 35214#(and (<= y 64) (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 64 y)), 35215#(and (<= 66 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 66)), 35216#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 68 y) (<= y 68)), 35217#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 35218#(and (<= y 72) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 72 y)), 35219#(and (<= y 74) (<= 74 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 35220#(and (<= y 76) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 76 y)), 35221#(and (<= y 78) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 78 y)), 35222#(and (<= y 80) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 80 y)), 35223#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 82) (<= 82 y)), 35224#(and (<= 84 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= y 84)), 35225#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 35226#(and (<= y 88) (<= 88 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 35227#(and (<= y 90) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 90 y)), 35228#(and (<= 92 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 92)), 35229#(and (<= 94 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 94)), 35230#(and (<= 96 y) (<= y 96) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 35231#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 98) (<= 98 y)), 35232#(and (<= 100 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 100)), 35233#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 35234#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 35235#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 106 y) (<= y 106)), 35236#(and (<= 108 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 108)), 35237#(and (<= 110 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 110)), 35238#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 35239#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 35240#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 116 y) (<= y 116)), 35241#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 118) (<= 118 y)), 35242#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 120) (<= 120 y)), 35243#(and (<= y 122) (<= 122 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 35244#(and (<= y 124) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 124 y)), 35245#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 126) (<= 126 y)), 35246#(and (<= 128 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 128)), 35247#(and (<= y 130) (<= 130 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 35248#(and (<= y 132) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 132 y)), 35249#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 134 y) (<= y 134)), 35250#(and (<= 136 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 136)), 35251#(and (<= 138 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 138)), 35252#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 140 y) (<= y 140)), 35253#(and (<= 142 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 142)), 35254#(and (<= y 144) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 144 y)), 35255#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 146) (<= 146 y)), 35256#(and (<= 148 y) (<= y 148) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 35257#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 150) (<= 150 y)), 35258#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 152) (<= 152 y)), 35259#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 154) (<= 154 y)), 35260#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 156 y) (<= y 156)), 35261#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 158) (<= 158 y)), 35262#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 160 y) (<= y 160)), 35263#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 35264#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 35265#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 35266#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 168) (<= 168 y)), 35267#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 35268#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 35269#(and (<= 174 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 174)), 35270#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 35271#(and (<= y 178) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 178 y)), 35272#(and (<= 180 y) (<= y 180) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 35273#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 182 y) (<= y 182)), 35274#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 184) (<= 184 y)), 35275#(and (<= 186 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 186)), 35276#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 188) (<= 188 y)), 35277#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 190 y) (<= y 190)), 35278#(and (<= 192 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 192)), 35279#(and (<= y 194) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 194 y)), 35280#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 196) (<= 196 y)), 35281#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 198 y) (<= y 198)), 35282#(and (<= 200 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 200)), 35283#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 202) (<= 202 y)), 35284#(and (<= 204 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 204)), 35285#(and (<= y 206) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 206 y)), 35286#(and (<= 208 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 208)), 35287#(and (<= 210 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 210)), 35288#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 35289#(and (<= y 214) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 214 y)), 35290#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 216) (<= 216 y)), 35291#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 218) (<= 218 y)), 35292#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 220 y) (<= y 220)), 35293#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 35294#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 35295#(and (<= 226 y) (<= y 226) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 35296#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 35297#(and (<= 230 y) (<= y 230) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 35298#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 232 y) (<= y 232)), 35299#(and (<= 234 y) (<= y 234) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 35300#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 236 y) (<= y 236)), 35301#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 238) (<= 238 y)), 35302#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 35303#(and (<= 242 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 242)), 35304#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 244) (<= 244 y)), 35305#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 246 y) (<= y 246)), 35306#(and (<= y 248) (or (<= (+ x 2) 0) (<= 0 x)) (<= 248 y)), 35307#(and (<= y 250) (or (<= 2 x) (<= x 0)) (<= 250 y)), 35308#(and (or (<= 4 x) (<= x 2)) (<= y 252) (<= 252 y)), 35309#(and (or (<= x 4) (<= 6 x)) (<= 254 y) (<= y 254)), 35310#(and (<= y 256) (or (<= 8 x) (<= x 6)) (<= 256 y)), 35311#(and (or (<= x 8) (<= 10 x)) (<= y 258) (<= 258 y)), 35312#(and (or (<= 12 x) (<= x 10)) (<= y 260) (<= 260 y)), 35313#(and (<= 262 y) (<= y 262) (or (<= 14 x) (<= x 12))), 35314#(and (<= y 264) (or (<= x 14) (<= 16 x)) (<= 264 y)), 35315#(and (<= y 266) (or (<= 18 x) (<= x 16)) (<= 266 y)), 35316#(and (<= y 268) (<= 268 y) (or (<= 20 x) (<= x 18))), 35317#(and (<= y 270) (or (<= 22 x) (<= x 20)) (<= 270 y)), 35318#(and (<= y 272) (<= 272 y) (or (<= 24 x) (<= x 22)))] [2018-07-23 13:52:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 6670 backedges. 0 proven. 6670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:52:52,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:52:52,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=13573, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:52,624 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 118 states. [2018-07-23 13:52:54,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:54,118 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-07-23 13:52:54,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:52:54,118 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 117 [2018-07-23 13:52:54,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:54,118 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:52:54,118 INFO L226 Difference]: Without dead ends: 119 [2018-07-23 13:52:54,119 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=233, Invalid=13573, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:54,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-07-23 13:52:54,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-07-23 13:52:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-07-23 13:52:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-07-23 13:52:54,240 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 117 [2018-07-23 13:52:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:54,241 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-07-23 13:52:54,241 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:52:54,241 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-07-23 13:52:54,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 13:52:54,241 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:54,242 INFO L357 BasicCegarLoop]: trace histogram [116, 1, 1] [2018-07-23 13:52:54,242 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:54,242 INFO L82 PathProgramCache]: Analyzing trace with hash 954069063, now seen corresponding path program 116 times [2018-07-23 13:52:54,242 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,575 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:55,575 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:52:55,576 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,576 INFO L185 omatonBuilderFactory]: Interpolants [35840#(and (<= y 124) (or (<= (+ x 128) 0) (<= 0 (+ x 126))) (<= 124 y)), 35841#(and (<= y 126) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 126 y)), 35842#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 128 y) (<= y 128)), 35843#(and (<= y 130) (<= 130 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 35844#(and (<= y 132) (<= 132 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 35845#(and (<= 134 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 134)), 35846#(and (<= 136 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 136)), 35847#(and (<= 138 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 138)), 35848#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 140 y) (<= y 140)), 35849#(and (<= 142 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 142)), 35850#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 144) (<= 144 y)), 35851#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 146) (<= 146 y)), 35852#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 35853#(and (<= y 150) (<= 150 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 35854#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 152) (<= 152 y)), 35855#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 154) (<= 154 y)), 35856#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 156 y) (<= y 156)), 35857#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 158) (<= 158 y)), 35858#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 160 y) (<= y 160)), 35859#(and (<= y 162) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 162 y)), 35860#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 35861#(and (<= y 166) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 166 y)), 35862#(and (<= y 168) (<= 168 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 35863#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 170) (<= 170 y)), 35864#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 35865#(and (<= 174 y) (<= y 174) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 35866#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 176) (<= 176 y)), 35867#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 35868#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 180 y) (<= y 180)), 35869#(and (<= 182 y) (<= y 182) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 35870#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 184) (<= 184 y)), 35871#(and (<= 186 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 186)), 35872#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 188) (<= 188 y)), 35873#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 190 y) (<= y 190)), 35874#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 192 y) (<= y 192)), 35875#(and (<= y 194) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 194 y)), 35876#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 196) (<= 196 y)), 35877#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 198 y) (<= y 198)), 35878#(and (<= 200 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 200)), 35879#(and (<= y 202) (<= 202 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 35880#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 204 y) (<= y 204)), 35881#(and (<= y 206) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 206 y)), 35882#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 208 y) (<= y 208)), 35883#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 35884#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 212 y) (<= y 212)), 35885#(and (<= y 214) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 214 y)), 35886#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 216) (<= 216 y)), 35887#(and (<= y 218) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 218 y)), 35888#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 220 y) (<= y 220)), 35889#(and (<= y 222) (<= 222 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 35890#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 35891#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 35892#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 228) (<= 228 y)), 35893#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 35894#(and (<= 232 y) (<= y 232) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 35895#(and (<= 234 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 234)), 35896#(and (<= 236 y) (<= y 236) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 35897#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 238) (<= 238 y)), 35898#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 240) (<= 240 y)), 35899#(and (<= 242 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 242)), 35900#(and (<= y 244) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 244 y)), 35901#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 246 y) (<= y 246)), 35902#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 248) (<= 248 y)), 35903#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 250) (<= 250 y)), 35904#(and (<= y 252) (<= 252 y) (or (<= 2 x) (<= x 0))), 35905#(and (or (<= 4 x) (<= x 2)) (<= 254 y) (<= y 254)), 35906#(and (or (<= x 4) (<= 6 x)) (<= y 256) (<= 256 y)), 35907#(and (<= y 258) (<= 258 y) (or (<= 8 x) (<= x 6))), 35908#(and (<= y 260) (<= 260 y) (or (<= x 8) (<= 10 x))), 35909#(and (or (<= 12 x) (<= x 10)) (<= 262 y) (<= y 262)), 35910#(and (<= y 264) (<= 264 y) (or (<= 14 x) (<= x 12))), 35911#(and (<= y 266) (or (<= x 14) (<= 16 x)) (<= 266 y)), 35912#(and (<= y 268) (<= 268 y) (or (<= 18 x) (<= x 16))), 35913#(and (<= y 270) (or (<= 20 x) (<= x 18)) (<= 270 y)), 35914#(and (<= y 272) (<= 272 y) (or (<= 22 x) (<= x 20))), 35915#(and (<= 274 y) (or (<= 24 x) (<= x 22)) (<= y 274)), 35797#true, 35798#false, 35799#(and (or (< 0 (+ (div x 2) 105)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 35800#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 35801#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 46 y) (<= y 46)), 35802#(and (<= y 48) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 48 y)), 35803#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 35804#(and (<= 52 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 52)), 35805#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 54 y) (<= y 54)), 35806#(and (<= y 56) (or (<= 0 (+ x 194)) (<= (+ x 196) 0)) (<= 56 y)), 35807#(and (<= 58 y) (<= y 58) (or (<= (+ x 194) 0) (<= 0 (+ x 192)))), 35808#(and (<= 60 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 60)), 35809#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 62) (<= 62 y)), 35810#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 35811#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 66 y) (<= y 66)), 35812#(and (<= 68 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 68)), 35813#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 70 y) (<= y 70)), 35814#(and (<= y 72) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 72 y)), 35815#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 74) (<= 74 y)), 35816#(and (<= y 76) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 76 y)), 35817#(and (<= y 78) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 78 y)), 35818#(and (<= y 80) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 80 y)), 35819#(and (<= y 82) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 82 y)), 35820#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 84 y) (<= y 84)), 35821#(and (<= 86 y) (<= y 86) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 35822#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 35823#(and (<= y 90) (<= 90 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 35824#(and (<= 92 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 92)), 35825#(and (<= 94 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 94)), 35826#(and (<= 96 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 96)), 35827#(and (<= y 98) (<= 98 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 35828#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 100 y) (<= y 100)), 35829#(and (<= y 102) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 102 y)), 35830#(and (<= y 104) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 104 y)), 35831#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 35832#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 108 y) (<= y 108)), 35833#(and (<= 110 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 110)), 35834#(and (<= y 112) (<= 112 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 35835#(and (<= 114 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 114)), 35836#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 116 y) (<= y 116)), 35837#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 118) (<= 118 y)), 35838#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 120) (<= 120 y)), 35839#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 122) (<= 122 y))] [2018-07-23 13:52:55,577 INFO L134 CoverageAnalysis]: Checked inductivity of 6786 backedges. 0 proven. 6786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:55,577 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:52:55,577 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:52:55,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=13807, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:55,578 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 119 states. [2018-07-23 13:52:57,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:57,063 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:52:57,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:52:57,063 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 118 [2018-07-23 13:52:57,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:57,064 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:52:57,064 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:52:57,065 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=235, Invalid=13807, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:57,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:52:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:52:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:52:57,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:52:57,221 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 118 [2018-07-23 13:52:57,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:57,221 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:52:57,221 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:52:57,221 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:52:57,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:52:57,222 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:57,222 INFO L357 BasicCegarLoop]: trace histogram [117, 1, 1] [2018-07-23 13:52:57,222 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash -488630175, now seen corresponding path program 117 times [2018-07-23 13:52:57,222 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,572 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:58,572 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:52:58,573 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:58,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,573 INFO L185 omatonBuilderFactory]: Interpolants [36398#true, 36399#false, 36400#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 106)) (<= x (* 2 (div x 2))))), 36401#(and (<= 44 y) (<= y 44) (or (<= (+ x 210) 0) (<= 0 (+ x 208)))), 36402#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 36403#(and (<= y 48) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 48 y)), 36404#(and (<= y 50) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 50 y)), 36405#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 36406#(and (<= 54 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 54)), 36407#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 56) (<= 56 y)), 36408#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 36409#(and (<= 60 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 60)), 36410#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 62) (<= 62 y)), 36411#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0))), 36412#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 36413#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 68 y) (<= y 68)), 36414#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 70 y) (<= y 70)), 36415#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 72) (<= 72 y)), 36416#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 36417#(and (<= y 76) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 76 y)), 36418#(and (<= y 78) (<= 78 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 36419#(and (<= y 80) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 80 y)), 36420#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 82) (<= 82 y)), 36421#(and (<= 84 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 84)), 36422#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 86 y) (<= y 86)), 36423#(and (<= y 88) (<= 88 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 36424#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 36425#(and (<= 92 y) (<= y 92) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 36426#(and (<= 94 y) (<= y 94) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 36427#(and (<= 96 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 96)), 36428#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 98) (<= 98 y)), 36429#(and (<= 100 y) (<= y 100) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 36430#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 102) (<= 102 y)), 36431#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 104) (<= 104 y)), 36432#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 36433#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 36434#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 110 y) (<= y 110)), 36435#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0))), 36436#(and (<= 114 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 114)), 36437#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 116 y) (<= y 116)), 36438#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 118) (<= 118 y)), 36439#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 120) (<= 120 y)), 36440#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 122) (<= 122 y)), 36441#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 124) (<= 124 y)), 36442#(and (<= y 126) (<= 126 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 36443#(and (<= 128 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 128)), 36444#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 130) (<= 130 y)), 36445#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 132) (<= 132 y)), 36446#(and (<= 134 y) (<= y 134) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 36447#(and (<= 136 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 136)), 36448#(and (<= 138 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 138)), 36449#(and (<= 140 y) (<= y 140) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 36450#(and (<= 142 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 142)), 36451#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 144) (<= 144 y)), 36452#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 146) (<= 146 y)), 36453#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 148 y) (<= y 148)), 36454#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 150) (<= 150 y)), 36455#(and (<= y 152) (<= 152 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 36456#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 154) (<= 154 y)), 36457#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 156 y) (<= y 156)), 36458#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 158) (<= 158 y)), 36459#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 160 y) (<= y 160)), 36460#(and (<= y 162) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 162 y)), 36461#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 164 y) (<= y 164)), 36462#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 36463#(and (<= y 168) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 168 y)), 36464#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 36465#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 172 y) (<= y 172)), 36466#(and (<= 174 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 174)), 36467#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 36468#(and (<= y 178) (<= 178 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 36469#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 36470#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 182 y) (<= y 182)), 36471#(and (<= y 184) (<= 184 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 36472#(and (<= 186 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 186)), 36473#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 188) (<= 188 y)), 36474#(and (<= 190 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 190)), 36475#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 192 y) (<= y 192)), 36476#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 194) (<= 194 y)), 36477#(and (<= y 196) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 196 y)), 36478#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 198 y) (<= y 198)), 36479#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 200 y) (<= y 200)), 36480#(and (<= y 202) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 202 y)), 36481#(and (<= 204 y) (<= y 204) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 36482#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 206) (<= 206 y)), 36483#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 208 y) (<= y 208)), 36484#(and (<= 210 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 210)), 36485#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 36486#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 214) (<= 214 y)), 36487#(and (<= y 216) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 216 y)), 36488#(and (<= y 218) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 218 y)), 36489#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 220 y) (<= y 220)), 36490#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 222) (<= 222 y)), 36491#(and (<= 224 y) (<= y 224) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 36492#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 36493#(and (<= y 228) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 228 y)), 36494#(and (<= 230 y) (<= y 230) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 36495#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 36496#(and (<= 234 y) (<= y 234) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 36497#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 236 y) (<= y 236)), 36498#(and (<= y 238) (<= 238 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 36499#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 240) (<= 240 y)), 36500#(and (<= 242 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 242)), 36501#(and (<= y 244) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 244 y)), 36502#(and (<= 246 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 246)), 36503#(and (<= y 248) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 248 y)), 36504#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 250) (<= 250 y)), 36505#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 252) (<= 252 y)), 36506#(and (<= 254 y) (<= y 254) (or (<= 2 x) (<= x 0))), 36507#(and (or (<= 4 x) (<= x 2)) (<= y 256) (<= 256 y)), 36508#(and (or (<= x 4) (<= 6 x)) (<= y 258) (<= 258 y)), 36509#(and (<= y 260) (<= 260 y) (or (<= 8 x) (<= x 6))), 36510#(and (<= 262 y) (<= y 262) (or (<= x 8) (<= 10 x))), 36511#(and (or (<= 12 x) (<= x 10)) (<= y 264) (<= 264 y)), 36512#(and (<= y 266) (<= 266 y) (or (<= 14 x) (<= x 12))), 36513#(and (<= y 268) (<= 268 y) (or (<= x 14) (<= 16 x))), 36514#(and (<= y 270) (or (<= 18 x) (<= x 16)) (<= 270 y)), 36515#(and (<= y 272) (<= 272 y) (or (<= 20 x) (<= x 18))), 36516#(and (<= 274 y) (or (<= 22 x) (<= x 20)) (<= y 274)), 36517#(and (or (<= 24 x) (<= x 22)) (<= y 276) (<= 276 y))] [2018-07-23 13:52:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 6903 backedges. 0 proven. 6903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,574 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:52:58,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:52:58,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=14043, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:52:58,576 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 120 states. [2018-07-23 13:53:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:00,127 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-07-23 13:53:00,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:53:00,127 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 119 [2018-07-23 13:53:00,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:00,128 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:53:00,128 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:53:00,128 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=237, Invalid=14043, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:53:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:53:00,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:53:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:53:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-07-23 13:53:00,262 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 119 [2018-07-23 13:53:00,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:00,262 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-07-23 13:53:00,262 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:53:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-07-23 13:53:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:53:00,263 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:00,263 INFO L357 BasicCegarLoop]: trace histogram [118, 1, 1] [2018-07-23 13:53:00,264 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:00,264 INFO L82 PathProgramCache]: Analyzing trace with hash 2032333703, now seen corresponding path program 118 times [2018-07-23 13:53:00,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:01,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,621 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:01,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:53:01,621 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,622 INFO L185 omatonBuilderFactory]: Interpolants [37120#(and (<= y 270) (or (<= x 14) (<= 16 x)) (<= 270 y)), 37121#(and (<= y 272) (<= 272 y) (or (<= 18 x) (<= x 16))), 37122#(and (<= 274 y) (or (<= 20 x) (<= x 18)) (<= y 274)), 37123#(and (or (<= 22 x) (<= x 20)) (<= y 276) (<= 276 y)), 37124#(and (<= 278 y) (or (<= 24 x) (<= x 22)) (<= y 278)), 37004#true, 37005#false, 37006#(and (<= y 42) (or (<= x (* 2 (div x 2))) (< 0 (+ (div x 2) 107))) (<= 42 y)), 37007#(and (<= 44 y) (<= y 44) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 37008#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 46 y) (<= y 46)), 37009#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 37010#(and (<= y 50) (<= 50 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204)))), 37011#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 52 y) (<= y 52)), 37012#(and (<= 54 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 54)), 37013#(and (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 56) (<= 56 y)), 37014#(and (<= 58 y) (<= y 58) (or (<= (+ x 198) 0) (<= 0 (+ x 196)))), 37015#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 37016#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 62) (<= 62 y)), 37017#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0))), 37018#(and (<= 66 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 66)), 37019#(and (<= 68 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 68)), 37020#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 70 y) (<= y 70)), 37021#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 72) (<= 72 y)), 37022#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 74) (<= 74 y)), 37023#(and (<= y 76) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 76 y)), 37024#(and (<= y 78) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 78 y)), 37025#(and (<= y 80) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 80 y)), 37026#(and (<= y 82) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 82 y)), 37027#(and (<= 84 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 84)), 37028#(and (<= 86 y) (<= y 86) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 37029#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 88) (<= 88 y)), 37030#(and (<= y 90) (<= 90 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 37031#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 37032#(and (<= 94 y) (<= y 94) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 37033#(and (<= 96 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 96)), 37034#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 98) (<= 98 y)), 37035#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 100 y) (<= y 100)), 37036#(and (<= y 102) (<= 102 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 37037#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 104) (<= 104 y)), 37038#(and (<= 106 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 106)), 37039#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 37040#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 37041#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 112) (<= 112 y)), 37042#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 114 y) (<= y 114)), 37043#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 116 y) (<= y 116)), 37044#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 118) (<= 118 y)), 37045#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 37046#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 122) (<= 122 y)), 37047#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 124) (<= 124 y)), 37048#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 126) (<= 126 y)), 37049#(and (<= 128 y) (<= y 128) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 37050#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 37051#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 132) (<= 132 y)), 37052#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 134 y) (<= y 134)), 37053#(and (<= 136 y) (<= y 136) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 37054#(and (<= 138 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 138)), 37055#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 140 y) (<= y 140)), 37056#(and (<= 142 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 142)), 37057#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 144) (<= 144 y)), 37058#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 146) (<= 146 y)), 37059#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 148 y) (<= y 148)), 37060#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 150) (<= 150 y)), 37061#(and (<= y 152) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 152 y)), 37062#(and (<= y 154) (<= 154 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 37063#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 156 y) (<= y 156)), 37064#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 158) (<= 158 y)), 37065#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 160 y) (<= y 160)), 37066#(and (<= y 162) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 162 y)), 37067#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 164 y) (<= y 164)), 37068#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 166) (<= 166 y)), 37069#(and (<= y 168) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 168 y)), 37070#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 170) (<= 170 y)), 37071#(and (<= 172 y) (<= y 172) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 37072#(and (<= 174 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 174)), 37073#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 37074#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 37075#(and (<= 180 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 180)), 37076#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 37077#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 184) (<= 184 y)), 37078#(and (<= 186 y) (<= y 186) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 37079#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 188) (<= 188 y)), 37080#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 190 y) (<= y 190)), 37081#(and (<= 192 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 192)), 37082#(and (<= y 194) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 194 y)), 37083#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 196) (<= 196 y)), 37084#(and (<= 198 y) (<= y 198) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 37085#(and (<= 200 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 200)), 37086#(and (<= y 202) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 202 y)), 37087#(and (<= 204 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 204)), 37088#(and (<= y 206) (<= 206 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 37089#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 208 y) (<= y 208)), 37090#(and (<= 210 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 210)), 37091#(and (<= 212 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 212)), 37092#(and (<= y 214) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 214 y)), 37093#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 216) (<= 216 y)), 37094#(and (<= y 218) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 218 y)), 37095#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 220 y) (<= y 220)), 37096#(and (<= y 222) (<= 222 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 37097#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 224 y) (<= y 224)), 37098#(and (<= 226 y) (<= y 226) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 37099#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 228) (<= 228 y)), 37100#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 37101#(and (<= 232 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 232)), 37102#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 37103#(and (<= 236 y) (<= y 236) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 37104#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 238) (<= 238 y)), 37105#(and (<= y 240) (<= 240 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 37106#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 242 y) (<= y 242)), 37107#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 244) (<= 244 y)), 37108#(and (<= 246 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 246)), 37109#(and (<= y 248) (<= 248 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 37110#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 250) (<= 250 y)), 37111#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 252) (<= 252 y)), 37112#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 254 y) (<= y 254)), 37113#(and (<= y 256) (or (<= 2 x) (<= x 0)) (<= 256 y)), 37114#(and (or (<= 4 x) (<= x 2)) (<= y 258) (<= 258 y)), 37115#(and (<= y 260) (or (<= x 4) (<= 6 x)) (<= 260 y)), 37116#(and (<= 262 y) (<= y 262) (or (<= 8 x) (<= x 6))), 37117#(and (<= y 264) (or (<= x 8) (<= 10 x)) (<= 264 y)), 37118#(and (or (<= 12 x) (<= x 10)) (<= y 266) (<= 266 y)), 37119#(and (<= y 268) (<= 268 y) (or (<= 14 x) (<= x 12)))] [2018-07-23 13:53:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 7021 backedges. 0 proven. 7021 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:53:01,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:53:01,624 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=14281, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:01,624 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 121 states. [2018-07-23 13:53:03,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:03,051 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:53:03,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:53:03,052 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 120 [2018-07-23 13:53:03,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:03,052 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:53:03,052 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:53:03,053 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=239, Invalid=14281, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:53:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:53:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:53:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:53:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:53:03,164 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 120 [2018-07-23 13:53:03,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:03,165 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:53:03,165 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:53:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:53:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:53:03,165 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:03,165 INFO L357 BasicCegarLoop]: trace histogram [119, 1, 1] [2018-07-23 13:53:03,165 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1422164703, now seen corresponding path program 119 times [2018-07-23 13:53:03,165 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,434 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:04,434 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:53:04,434 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:04,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,435 INFO L185 omatonBuilderFactory]: Interpolants [37632#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 72) (<= 72 y)), 37633#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 74) (<= 74 y)), 37634#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 76) (<= 76 y)), 37635#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 37636#(and (<= y 80) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 80 y)), 37637#(and (<= y 82) (<= 82 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 37638#(and (<= 84 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 84)), 37639#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 86 y) (<= y 86)), 37640#(and (<= y 88) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 88 y)), 37641#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 90) (<= 90 y)), 37642#(and (<= 92 y) (<= y 92) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 37643#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 37644#(and (<= 96 y) (<= y 96) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 37645#(and (<= y 98) (<= 98 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 37646#(and (<= 100 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 100)), 37647#(and (<= y 102) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 102 y)), 37648#(and (<= y 104) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 104 y)), 37649#(and (<= 106 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 106)), 37650#(and (<= 108 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 108)), 37651#(and (<= 110 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 110)), 37652#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 37653#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 114 y) (<= y 114)), 37654#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 116 y) (<= y 116)), 37655#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 118) (<= 118 y)), 37656#(and (<= y 120) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 120 y)), 37657#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 37658#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 124) (<= 124 y)), 37659#(and (<= y 126) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 126 y)), 37660#(and (<= 128 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 128)), 37661#(and (<= y 130) (<= 130 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 37662#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 132) (<= 132 y)), 37663#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 134 y) (<= y 134)), 37664#(and (<= 136 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 136)), 37665#(and (<= 138 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= y 138)), 37666#(and (<= 140 y) (<= y 140) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 37667#(and (<= 142 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 142)), 37668#(and (<= y 144) (<= 144 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 37669#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 146) (<= 146 y)), 37670#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 148 y) (<= y 148)), 37671#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 150) (<= 150 y)), 37672#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 152) (<= 152 y)), 37673#(and (<= y 154) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 154 y)), 37674#(and (<= 156 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 156)), 37675#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 158) (<= 158 y)), 37676#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 160 y) (<= y 160)), 37677#(and (<= y 162) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 162 y)), 37678#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 164 y) (<= y 164)), 37679#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 166) (<= 166 y)), 37680#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 168) (<= 168 y)), 37681#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 170) (<= 170 y)), 37682#(and (<= 172 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 172)), 37683#(and (<= 174 y) (<= y 174) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 37684#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 176) (<= 176 y)), 37685#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 37686#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 37687#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 182 y) (<= y 182)), 37688#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 37689#(and (<= 186 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 186)), 37690#(and (<= y 188) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 188 y)), 37691#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 190 y) (<= y 190)), 37692#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 192 y) (<= y 192)), 37693#(and (<= y 194) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 194 y)), 37694#(and (<= y 196) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 196 y)), 37695#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 198 y) (<= y 198)), 37696#(and (<= 200 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 200)), 37697#(and (<= y 202) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 202 y)), 37698#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 204 y) (<= y 204)), 37699#(and (<= y 206) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 206 y)), 37700#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 208 y) (<= y 208)), 37701#(and (<= 210 y) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 210)), 37702#(and (<= 212 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 212)), 37703#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 214) (<= 214 y)), 37704#(and (<= y 216) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 216 y)), 37705#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 218) (<= 218 y)), 37706#(and (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 220 y) (<= y 220)), 37707#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 37708#(and (<= 224 y) (<= y 224) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 37709#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 226 y) (<= y 226)), 37710#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 228) (<= 228 y)), 37711#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 37712#(and (<= 232 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 232)), 37713#(and (<= 234 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 234)), 37714#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 37715#(and (<= y 238) (<= 238 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 37716#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 240) (<= 240 y)), 37717#(and (<= 242 y) (<= y 242) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 37718#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 244) (<= 244 y)), 37719#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 246 y) (<= y 246)), 37720#(and (<= y 248) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 248 y)), 37721#(and (<= y 250) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 250 y)), 37722#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 252) (<= 252 y)), 37723#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 254 y) (<= y 254)), 37724#(and (<= y 256) (or (<= (+ x 2) 0) (<= 0 x)) (<= 256 y)), 37725#(and (<= y 258) (<= 258 y) (or (<= 2 x) (<= x 0))), 37726#(and (<= y 260) (<= 260 y) (or (<= 4 x) (<= x 2))), 37727#(and (or (<= x 4) (<= 6 x)) (<= 262 y) (<= y 262)), 37728#(and (<= y 264) (or (<= 8 x) (<= x 6)) (<= 264 y)), 37729#(and (<= y 266) (or (<= x 8) (<= 10 x)) (<= 266 y)), 37730#(and (or (<= 12 x) (<= x 10)) (<= y 268) (<= 268 y)), 37731#(and (<= y 270) (<= 270 y) (or (<= 14 x) (<= x 12))), 37732#(and (<= y 272) (<= 272 y) (or (<= x 14) (<= 16 x))), 37733#(and (<= 274 y) (or (<= 18 x) (<= x 16)) (<= y 274)), 37734#(and (<= y 276) (or (<= 20 x) (<= x 18)) (<= 276 y)), 37735#(and (<= 278 y) (or (<= 22 x) (<= x 20)) (<= y 278)), 37736#(and (<= y 280) (<= 280 y) (or (<= 24 x) (<= x 22))), 37615#true, 37616#false, 37617#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 108)) (<= x (* 2 (div x 2))))), 37618#(and (<= 44 y) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 44)), 37619#(and (<= 46 y) (<= y 46) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 37620#(and (<= y 48) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 48 y)), 37621#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 37622#(and (<= 52 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 52)), 37623#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 54 y) (<= y 54)), 37624#(and (<= y 56) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 56 y)), 37625#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 37626#(and (<= 60 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 60)), 37627#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 37628#(and (<= y 64) (<= 64 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192)))), 37629#(and (<= 66 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 66)), 37630#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 68 y) (<= y 68)), 37631#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)))] [2018-07-23 13:53:04,436 INFO L134 CoverageAnalysis]: Checked inductivity of 7140 backedges. 0 proven. 7140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,436 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:53:04,436 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:53:04,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=14521, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:04,437 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 122 states. [2018-07-23 13:53:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:06,014 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2018-07-23 13:53:06,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:53:06,015 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 121 [2018-07-23 13:53:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:06,015 INFO L225 Difference]: With dead ends: 124 [2018-07-23 13:53:06,015 INFO L226 Difference]: Without dead ends: 123 [2018-07-23 13:53:06,016 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=241, Invalid=14521, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:53:06,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-07-23 13:53:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-07-23 13:53:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:53:06,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2018-07-23 13:53:06,144 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 121 [2018-07-23 13:53:06,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:06,144 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 123 transitions. [2018-07-23 13:53:06,144 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:53:06,144 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 123 transitions. [2018-07-23 13:53:06,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:53:06,145 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:06,145 INFO L357 BasicCegarLoop]: trace histogram [120, 1, 1] [2018-07-23 13:53:06,145 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:06,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1137432889, now seen corresponding path program 120 times [2018-07-23 13:53:06,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,563 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:07,564 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:53:07,564 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,564 INFO L185 omatonBuilderFactory]: Interpolants [38231#true, 38232#false, 38233#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 109)) (<= x (* 2 (div x 2))))), 38234#(and (<= 44 y) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 44)), 38235#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 46 y) (<= y 46)), 38236#(and (<= y 48) (<= 48 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 38237#(and (<= y 50) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 50 y)), 38238#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 38239#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 54 y) (<= y 54)), 38240#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 56) (<= 56 y)), 38241#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 38242#(and (<= 60 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 60)), 38243#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 62) (<= 62 y)), 38244#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 38245#(and (<= 66 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 66)), 38246#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 68 y) (<= y 68)), 38247#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 70 y) (<= y 70)), 38248#(and (<= y 72) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 72 y)), 38249#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 74) (<= 74 y)), 38250#(and (<= y 76) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 76 y)), 38251#(and (<= y 78) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 78 y)), 38252#(and (<= y 80) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 80 y)), 38253#(and (<= y 82) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 82 y)), 38254#(and (<= 84 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 84)), 38255#(and (<= 86 y) (<= y 86) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 38256#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 88) (<= 88 y)), 38257#(and (<= y 90) (<= 90 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 38258#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 92 y) (<= y 92)), 38259#(and (<= 94 y) (<= y 94) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 38260#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 38261#(and (<= y 98) (<= 98 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 38262#(and (<= 100 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 100)), 38263#(and (<= y 102) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 102 y)), 38264#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 104) (<= 104 y)), 38265#(and (<= 106 y) (<= y 106) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 38266#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 108 y) (<= y 108)), 38267#(and (<= 110 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 110)), 38268#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 38269#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 38270#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 116 y) (<= y 116)), 38271#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 118) (<= 118 y)), 38272#(and (<= y 120) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 120 y)), 38273#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 38274#(and (<= y 124) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 124 y)), 38275#(and (<= y 126) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 126 y)), 38276#(and (<= 128 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 128)), 38277#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0))), 38278#(and (<= y 132) (<= 132 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 38279#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 134 y) (<= y 134)), 38280#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 136 y) (<= y 136)), 38281#(and (<= 138 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 138)), 38282#(and (<= 140 y) (<= y 140) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 38283#(and (<= 142 y) (<= y 142) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 38284#(and (<= y 144) (<= 144 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114)))), 38285#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 146) (<= 146 y)), 38286#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 148 y) (<= y 148)), 38287#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 150) (<= 150 y)), 38288#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 152) (<= 152 y)), 38289#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 154) (<= 154 y)), 38290#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 156 y) (<= y 156)), 38291#(and (<= y 158) (<= 158 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 38292#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 160 y) (<= y 160)), 38293#(and (<= y 162) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 162 y)), 38294#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 164 y) (<= y 164)), 38295#(and (<= y 166) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 166 y)), 38296#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 168) (<= 168 y)), 38297#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 170) (<= 170 y)), 38298#(and (<= 172 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 172)), 38299#(and (<= 174 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 174)), 38300#(and (<= y 176) (<= 176 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 38301#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 178) (<= 178 y)), 38302#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 38303#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 38304#(and (<= y 184) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 184 y)), 38305#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 38306#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 188) (<= 188 y)), 38307#(and (<= 190 y) (<= y 190) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 38308#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 192 y) (<= y 192)), 38309#(and (<= y 194) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 194 y)), 38310#(and (<= y 196) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 196 y)), 38311#(and (<= 198 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 198)), 38312#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 200 y) (<= y 200)), 38313#(and (<= y 202) (<= 202 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 38314#(and (<= 204 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 204)), 38315#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 206) (<= 206 y)), 38316#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 208 y) (<= y 208)), 38317#(and (<= 210 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 210)), 38318#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 212 y) (<= y 212)), 38319#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 214) (<= 214 y)), 38320#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 216) (<= 216 y)), 38321#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 38322#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 220 y) (<= y 220)), 38323#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 38324#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 38325#(and (<= 226 y) (<= y 226) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 38326#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 228) (<= 228 y)), 38327#(and (<= 230 y) (<= y 230) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 38328#(and (<= 232 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 232)), 38329#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 38330#(and (<= 236 y) (<= y 236) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 38331#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 38332#(and (<= y 240) (<= 240 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 38333#(and (<= 242 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 242)), 38334#(and (<= y 244) (<= 244 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 38335#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 246 y) (<= y 246)), 38336#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 248) (<= 248 y)), 38337#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 250) (<= 250 y)), 38338#(and (<= y 252) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 252 y)), 38339#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 254 y) (<= y 254)), 38340#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 256) (<= 256 y)), 38341#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 258) (<= 258 y)), 38342#(and (<= y 260) (<= 260 y) (or (<= 2 x) (<= x 0))), 38343#(and (<= 262 y) (<= y 262) (or (<= 4 x) (<= x 2))), 38344#(and (or (<= x 4) (<= 6 x)) (<= y 264) (<= 264 y)), 38345#(and (<= y 266) (or (<= 8 x) (<= x 6)) (<= 266 y)), 38346#(and (<= y 268) (<= 268 y) (or (<= x 8) (<= 10 x))), 38347#(and (or (<= 12 x) (<= x 10)) (<= y 270) (<= 270 y)), 38348#(and (<= y 272) (<= 272 y) (or (<= 14 x) (<= x 12))), 38349#(and (<= 274 y) (or (<= x 14) (<= 16 x)) (<= y 274)), 38350#(and (or (<= 18 x) (<= x 16)) (<= y 276) (<= 276 y)), 38351#(and (<= 278 y) (or (<= 20 x) (<= x 18)) (<= y 278)), 38352#(and (<= y 280) (<= 280 y) (or (<= 22 x) (<= x 20))), 38353#(and (<= y 282) (or (<= 24 x) (<= x 22)) (<= 282 y))] [2018-07-23 13:53:07,565 INFO L134 CoverageAnalysis]: Checked inductivity of 7260 backedges. 0 proven. 7260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,565 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:53:07,565 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:53:07,565 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=14763, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:07,566 INFO L87 Difference]: Start difference. First operand 123 states and 123 transitions. Second operand 123 states. [2018-07-23 13:53:09,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:09,070 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:53:09,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:53:09,070 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 122 [2018-07-23 13:53:09,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:09,070 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:53:09,071 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:53:09,071 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=243, Invalid=14763, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:53:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:53:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:53:09,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:53:09,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:53:09,202 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 122 [2018-07-23 13:53:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:09,203 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:53:09,203 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:53:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:53:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:53:09,203 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:09,203 INFO L357 BasicCegarLoop]: trace histogram [121, 1, 1] [2018-07-23 13:53:09,203 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:09,204 INFO L82 PathProgramCache]: Analyzing trace with hash -900681247, now seen corresponding path program 121 times [2018-07-23 13:53:09,204 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,630 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:10,630 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:53:10,630 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,631 INFO L185 omatonBuilderFactory]: Interpolants [38912#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 158) (<= 158 y)), 38913#(and (<= 160 y) (<= y 160) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 38914#(and (<= y 162) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 162 y)), 38915#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 164 y) (<= y 164)), 38916#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 166) (<= 166 y)), 38917#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 168) (<= 168 y)), 38918#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 170) (<= 170 y)), 38919#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 172 y) (<= y 172)), 38920#(and (<= 174 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 174)), 38921#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 176) (<= 176 y)), 38922#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 38923#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 180 y) (<= y 180)), 38924#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 38925#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 38926#(and (<= 186 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 186)), 38927#(and (<= y 188) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 188 y)), 38928#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 190 y) (<= y 190)), 38929#(and (<= 192 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 192)), 38930#(and (<= y 194) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 194 y)), 38931#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 196) (<= 196 y)), 38932#(and (<= 198 y) (<= y 198) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 38933#(and (<= 200 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 200)), 38934#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 202) (<= 202 y)), 38935#(and (<= 204 y) (<= y 204) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 38936#(and (<= y 206) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 206 y)), 38937#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 208 y) (<= y 208)), 38938#(and (<= 210 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 210)), 38939#(and (<= 212 y) (<= y 212) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 38940#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 214) (<= 214 y)), 38941#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 216) (<= 216 y)), 38942#(and (<= y 218) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 218 y)), 38943#(and (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 220 y) (<= y 220)), 38944#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 222) (<= 222 y)), 38945#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 38946#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 38947#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 228) (<= 228 y)), 38948#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 230 y) (<= y 230)), 38949#(and (<= 232 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 232)), 38950#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 38951#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 38952#(and (<= y 238) (<= 238 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 38953#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 38954#(and (<= 242 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 242)), 38955#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 244) (<= 244 y)), 38956#(and (<= 246 y) (<= y 246) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 38957#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 248) (<= 248 y)), 38958#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 250) (<= 250 y)), 38959#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 252) (<= 252 y)), 38960#(and (<= 254 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 254)), 38961#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 256) (<= 256 y)), 38962#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 258) (<= 258 y)), 38963#(and (<= y 260) (<= 260 y) (or (<= (+ x 2) 0) (<= 0 x))), 38964#(and (<= 262 y) (<= y 262) (or (<= 2 x) (<= x 0))), 38965#(and (<= y 264) (or (<= 4 x) (<= x 2)) (<= 264 y)), 38966#(and (<= y 266) (or (<= x 4) (<= 6 x)) (<= 266 y)), 38967#(and (<= y 268) (<= 268 y) (or (<= 8 x) (<= x 6))), 38968#(and (<= y 270) (or (<= x 8) (<= 10 x)) (<= 270 y)), 38969#(and (<= y 272) (<= 272 y) (or (<= 12 x) (<= x 10))), 38970#(and (<= 274 y) (<= y 274) (or (<= 14 x) (<= x 12))), 38971#(and (<= y 276) (<= 276 y) (or (<= x 14) (<= 16 x))), 38972#(and (<= 278 y) (or (<= 18 x) (<= x 16)) (<= y 278)), 38973#(and (<= y 280) (<= 280 y) (or (<= 20 x) (<= x 18))), 38974#(and (<= y 282) (or (<= 22 x) (<= x 20)) (<= 282 y)), 38975#(and (or (<= 24 x) (<= x 22)) (<= y 284) (<= 284 y)), 38852#true, 38853#false, 38854#(and (<= y 42) (or (< 0 (+ (div x 2) 110)) (<= x (* 2 (div x 2)))) (<= 42 y)), 38855#(and (<= 44 y) (<= y 44) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 38856#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 46 y) (<= y 46)), 38857#(and (<= y 48) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 48 y)), 38858#(and (<= y 50) (<= 50 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 38859#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 52 y) (<= y 52)), 38860#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 38861#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 56) (<= 56 y)), 38862#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 58 y) (<= y 58)), 38863#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 38864#(and (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 62) (<= 62 y)), 38865#(and (<= y 64) (<= 64 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196)))), 38866#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 38867#(and (<= 68 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 68)), 38868#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 70 y) (<= y 70)), 38869#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 72) (<= 72 y)), 38870#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 38871#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 76) (<= 76 y)), 38872#(and (<= y 78) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 78 y)), 38873#(and (<= y 80) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 80 y)), 38874#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 38875#(and (<= 84 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 84)), 38876#(and (<= 86 y) (<= y 86) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 38877#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 88) (<= 88 y)), 38878#(and (<= y 90) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 90 y)), 38879#(and (<= 92 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 92)), 38880#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 94 y) (<= y 94)), 38881#(and (<= 96 y) (<= y 96) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 38882#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 38883#(and (<= 100 y) (<= y 100) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 38884#(and (<= y 102) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 102 y)), 38885#(and (<= y 104) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 104 y)), 38886#(and (<= 106 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 106)), 38887#(and (<= 108 y) (<= y 108) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 38888#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 110 y) (<= y 110)), 38889#(and (<= y 112) (<= 112 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 38890#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 38891#(and (<= 116 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)) (<= y 116)), 38892#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 118) (<= 118 y)), 38893#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 120) (<= 120 y)), 38894#(and (<= y 122) (<= 122 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 38895#(and (<= y 124) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 124 y)), 38896#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 38897#(and (<= 128 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 128)), 38898#(and (<= y 130) (<= 130 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130)))), 38899#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 132) (<= 132 y)), 38900#(and (<= 134 y) (<= y 134) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 38901#(and (<= 136 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 136)), 38902#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 138 y) (<= y 138)), 38903#(and (<= 140 y) (<= y 140) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 38904#(and (<= 142 y) (<= y 142) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 38905#(and (<= y 144) (<= 144 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 38906#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 146) (<= 146 y)), 38907#(and (<= 148 y) (<= y 148) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 38908#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 150) (<= 150 y)), 38909#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 152) (<= 152 y)), 38910#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 154) (<= 154 y)), 38911#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 156 y) (<= y 156))] [2018-07-23 13:53:10,631 INFO L134 CoverageAnalysis]: Checked inductivity of 7381 backedges. 0 proven. 7381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,632 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:53:10,632 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:53:10,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=15007, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:10,633 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 124 states. [2018-07-23 13:53:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:12,209 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-07-23 13:53:12,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:53:12,209 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 123 [2018-07-23 13:53:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:12,209 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:53:12,209 INFO L226 Difference]: Without dead ends: 125 [2018-07-23 13:53:12,210 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=245, Invalid=15007, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:53:12,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-07-23 13:53:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-07-23 13:53:12,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-07-23 13:53:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-07-23 13:53:12,342 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 123 [2018-07-23 13:53:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:12,342 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-07-23 13:53:12,342 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:53:12,342 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-07-23 13:53:12,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 13:53:12,342 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:12,342 INFO L357 BasicCegarLoop]: trace histogram [122, 1, 1] [2018-07-23 13:53:12,342 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:12,343 INFO L82 PathProgramCache]: Analyzing trace with hash 2143652359, now seen corresponding path program 122 times [2018-07-23 13:53:12,343 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,789 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:13,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:53:13,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,790 INFO L185 omatonBuilderFactory]: Interpolants [39478#true, 39479#false, 39480#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 111)) (<= x (* 2 (div x 2))))), 39481#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 218)) (<= (+ x 220) 0))), 39482#(and (<= 46 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216))) (<= y 46)), 39483#(and (<= y 48) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 48 y)), 39484#(and (<= y 50) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 50 y)), 39485#(and (<= 52 y) (<= y 52) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 39486#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 54 y) (<= y 54)), 39487#(and (<= y 56) (or (<= 0 (+ x 206)) (<= (+ x 208) 0)) (<= 56 y)), 39488#(and (<= 58 y) (<= y 58) (or (<= (+ x 206) 0) (<= 0 (+ x 204)))), 39489#(and (<= 60 y) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 60)), 39490#(and (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 62) (<= 62 y)), 39491#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 39492#(and (<= 66 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 66)), 39493#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 39494#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 70 y) (<= y 70)), 39495#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 72) (<= 72 y)), 39496#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 74) (<= 74 y)), 39497#(and (<= y 76) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 76 y)), 39498#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 78) (<= 78 y)), 39499#(and (<= y 80) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 80 y)), 39500#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 82) (<= 82 y)), 39501#(and (<= 84 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 84)), 39502#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 39503#(and (<= y 88) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 88 y)), 39504#(and (<= y 90) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 90 y)), 39505#(and (<= 92 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 92)), 39506#(and (<= 94 y) (<= y 94) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 39507#(and (<= 96 y) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 96)), 39508#(and (<= y 98) (<= 98 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 39509#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 39510#(and (<= y 102) (<= 102 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 39511#(and (<= y 104) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 104 y)), 39512#(and (<= 106 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 106)), 39513#(and (<= 108 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 108)), 39514#(and (<= 110 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 110)), 39515#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 112) (<= 112 y)), 39516#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 114 y) (<= y 114)), 39517#(and (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 116 y) (<= y 116)), 39518#(and (<= y 118) (<= 118 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 39519#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 120) (<= 120 y)), 39520#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 122) (<= 122 y)), 39521#(and (<= y 124) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 124 y)), 39522#(and (<= y 126) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 126 y)), 39523#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 39524#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0))), 39525#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 132) (<= 132 y)), 39526#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 134 y) (<= y 134)), 39527#(and (<= 136 y) (<= y 136) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 39528#(and (<= 138 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 138)), 39529#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 140 y) (<= y 140)), 39530#(and (<= 142 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 142)), 39531#(and (<= y 144) (<= 144 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 39532#(and (<= y 146) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 146 y)), 39533#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 148 y) (<= y 148)), 39534#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 150) (<= 150 y)), 39535#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 152) (<= 152 y)), 39536#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 154) (<= 154 y)), 39537#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 156 y) (<= y 156)), 39538#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 158) (<= 158 y)), 39539#(and (<= 160 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 160)), 39540#(and (<= y 162) (<= 162 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 39541#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 164 y) (<= y 164)), 39542#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 166) (<= 166 y)), 39543#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 168) (<= 168 y)), 39544#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 170) (<= 170 y)), 39545#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 172 y) (<= y 172)), 39546#(and (<= 174 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 174)), 39547#(and (<= y 176) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 176 y)), 39548#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 39549#(and (<= 180 y) (<= y 180) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 39550#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 182 y) (<= y 182)), 39551#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 39552#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 39553#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 188) (<= 188 y)), 39554#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 39555#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 192 y) (<= y 192)), 39556#(and (<= y 194) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 194 y)), 39557#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 196) (<= 196 y)), 39558#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 198 y) (<= y 198)), 39559#(and (<= 200 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 200)), 39560#(and (<= y 202) (<= 202 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 39561#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 204 y) (<= y 204)), 39562#(and (<= y 206) (<= 206 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 39563#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 208 y) (<= y 208)), 39564#(and (<= 210 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 210)), 39565#(and (<= 212 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 212)), 39566#(and (<= y 214) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 214 y)), 39567#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 216) (<= 216 y)), 39568#(and (<= y 218) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 218 y)), 39569#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 220 y) (<= y 220)), 39570#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 39571#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 224 y) (<= y 224)), 39572#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 39573#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 228) (<= 228 y)), 39574#(and (<= 230 y) (<= y 230) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 39575#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 232 y) (<= y 232)), 39576#(and (<= 234 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 234)), 39577#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 39578#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 39579#(and (<= y 240) (<= 240 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 39580#(and (<= 242 y) (<= y 242) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 39581#(and (<= y 244) (<= 244 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 39582#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 246 y) (<= y 246)), 39583#(and (<= y 248) (<= 248 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 39584#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 250) (<= 250 y)), 39585#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 252) (<= 252 y)), 39586#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 254 y) (<= y 254)), 39587#(and (<= y 256) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 256 y)), 39588#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 258) (<= 258 y)), 39589#(and (<= y 260) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 260 y)), 39590#(and (<= 262 y) (<= y 262) (or (<= (+ x 2) 0) (<= 0 x))), 39591#(and (<= y 264) (<= 264 y) (or (<= 2 x) (<= x 0))), 39592#(and (<= y 266) (or (<= 4 x) (<= x 2)) (<= 266 y)), 39593#(and (or (<= x 4) (<= 6 x)) (<= y 268) (<= 268 y)), 39594#(and (<= y 270) (or (<= 8 x) (<= x 6)) (<= 270 y)), 39595#(and (<= y 272) (<= 272 y) (or (<= x 8) (<= 10 x))), 39596#(and (or (<= 12 x) (<= x 10)) (<= 274 y) (<= y 274)), 39597#(and (<= y 276) (<= 276 y) (or (<= 14 x) (<= x 12))), 39598#(and (<= 278 y) (or (<= x 14) (<= 16 x)) (<= y 278)), 39599#(and (<= y 280) (<= 280 y) (or (<= 18 x) (<= x 16))), 39600#(and (<= y 282) (or (<= 20 x) (<= x 18)) (<= 282 y)), 39601#(and (or (<= 22 x) (<= x 20)) (<= y 284) (<= 284 y)), 39602#(and (or (<= 24 x) (<= x 22)) (<= 286 y) (<= y 286))] [2018-07-23 13:53:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 7503 backedges. 0 proven. 7503 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:13,790 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:53:13,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:53:13,791 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=15253, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:13,791 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 125 states. [2018-07-23 13:53:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:15,473 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:53:15,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:53:15,474 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 124 [2018-07-23 13:53:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:15,474 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:53:15,474 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:53:15,475 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=247, Invalid=15253, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:53:15,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:53:15,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:53:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:53:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:53:15,610 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 124 [2018-07-23 13:53:15,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:15,610 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:53:15,610 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:53:15,611 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:53:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:53:15,611 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:15,611 INFO L357 BasicCegarLoop]: trace histogram [123, 1, 1] [2018-07-23 13:53:15,611 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:15,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2028713633, now seen corresponding path program 123 times [2018-07-23 13:53:15,612 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,099 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:17,099 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:53:17,099 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,100 INFO L185 omatonBuilderFactory]: Interpolants [40192#(and (<= 204 y) (<= y 204) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 40193#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 206) (<= 206 y)), 40194#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 208 y) (<= y 208)), 40195#(and (<= 210 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 210)), 40196#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 212 y) (<= y 212)), 40197#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 214) (<= 214 y)), 40198#(and (<= y 216) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 216 y)), 40199#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 218) (<= 218 y)), 40200#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 220 y) (<= y 220)), 40201#(and (<= y 222) (<= 222 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 40202#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 40203#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 226 y) (<= y 226)), 40204#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 40205#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 40206#(and (<= 232 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 232)), 40207#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 234 y) (<= y 234)), 40208#(and (<= 236 y) (<= y 236) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 40209#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 40210#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 40211#(and (<= 242 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 242)), 40212#(and (<= y 244) (<= 244 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 40213#(and (<= 246 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 246)), 40214#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 248) (<= 248 y)), 40215#(and (<= y 250) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 250 y)), 40216#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 252) (<= 252 y)), 40217#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 254 y) (<= y 254)), 40218#(and (<= y 256) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 256 y)), 40219#(and (<= y 258) (<= 258 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 40220#(and (<= y 260) (<= 260 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 40221#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 262 y) (<= y 262)), 40222#(and (<= y 264) (or (<= (+ x 2) 0) (<= 0 x)) (<= 264 y)), 40223#(and (<= y 266) (<= 266 y) (or (<= 2 x) (<= x 0))), 40224#(and (<= y 268) (<= 268 y) (or (<= 4 x) (<= x 2))), 40225#(and (or (<= x 4) (<= 6 x)) (<= y 270) (<= 270 y)), 40226#(and (<= y 272) (<= 272 y) (or (<= 8 x) (<= x 6))), 40227#(and (<= 274 y) (or (<= x 8) (<= 10 x)) (<= y 274)), 40228#(and (or (<= 12 x) (<= x 10)) (<= y 276) (<= 276 y)), 40229#(and (<= 278 y) (<= y 278) (or (<= 14 x) (<= x 12))), 40230#(and (<= y 280) (<= 280 y) (or (<= x 14) (<= 16 x))), 40231#(and (<= y 282) (or (<= 18 x) (<= x 16)) (<= 282 y)), 40232#(and (or (<= 20 x) (<= x 18)) (<= y 284) (<= 284 y)), 40233#(and (or (<= 22 x) (<= x 20)) (<= 286 y) (<= y 286)), 40234#(and (or (<= 24 x) (<= x 22)) (<= 288 y) (<= y 288)), 40109#true, 40110#false, 40111#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 112)) (<= x (* 2 (div x 2))))), 40112#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 40113#(and (<= 46 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 46)), 40114#(and (<= y 48) (<= 48 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 40115#(and (<= y 50) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 50 y)), 40116#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 52 y) (<= y 52)), 40117#(and (<= 54 y) (<= y 54) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 40118#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 56) (<= 56 y)), 40119#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 40120#(and (<= 60 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 60)), 40121#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 62) (<= 62 y)), 40122#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 40123#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 40124#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 68 y) (<= y 68)), 40125#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 40126#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 72) (<= 72 y)), 40127#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 74) (<= 74 y)), 40128#(and (<= y 76) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 76 y)), 40129#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 40130#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 80) (<= 80 y)), 40131#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 82) (<= 82 y)), 40132#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 84 y) (<= y 84)), 40133#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 40134#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 88) (<= 88 y)), 40135#(and (<= y 90) (<= 90 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 40136#(and (<= 92 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 92)), 40137#(and (<= 94 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 94)), 40138#(and (<= 96 y) (<= y 96) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 40139#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 98) (<= 98 y)), 40140#(and (<= 100 y) (<= y 100) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 40141#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 40142#(and (<= y 104) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 104 y)), 40143#(and (<= 106 y) (<= y 106) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 40144#(and (<= 108 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 108)), 40145#(and (<= 110 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 110)), 40146#(and (<= y 112) (<= 112 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 40147#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 114 y) (<= y 114)), 40148#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 116 y) (<= y 116)), 40149#(and (<= y 118) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 118 y)), 40150#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 40151#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 122) (<= 122 y)), 40152#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 124) (<= 124 y)), 40153#(and (<= y 126) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 126 y)), 40154#(and (<= 128 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 128)), 40155#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 40156#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 132) (<= 132 y)), 40157#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 134 y) (<= y 134)), 40158#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 136 y) (<= y 136)), 40159#(and (<= 138 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126))) (<= y 138)), 40160#(and (<= 140 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 140)), 40161#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 142 y) (<= y 142)), 40162#(and (<= y 144) (<= 144 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 40163#(and (<= y 146) (<= 146 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 40164#(and (<= 148 y) (<= y 148) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 40165#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 150) (<= 150 y)), 40166#(and (<= y 152) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 152 y)), 40167#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 154) (<= 154 y)), 40168#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 156 y) (<= y 156)), 40169#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 158) (<= 158 y)), 40170#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 160 y) (<= y 160)), 40171#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 40172#(and (<= 164 y) (<= y 164) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 40173#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 166) (<= 166 y)), 40174#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 168) (<= 168 y)), 40175#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 170) (<= 170 y)), 40176#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 172 y) (<= y 172)), 40177#(and (<= 174 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 174)), 40178#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 176) (<= 176 y)), 40179#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 40180#(and (<= 180 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 180)), 40181#(and (<= 182 y) (<= y 182) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 40182#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 184) (<= 184 y)), 40183#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 40184#(and (<= y 188) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 188 y)), 40185#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 190 y) (<= y 190)), 40186#(and (<= 192 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 192)), 40187#(and (<= y 194) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 194 y)), 40188#(and (<= y 196) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 196 y)), 40189#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 198 y) (<= y 198)), 40190#(and (<= 200 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 200)), 40191#(and (<= y 202) (<= 202 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))))] [2018-07-23 13:53:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7626 backedges. 0 proven. 7626 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,100 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:53:17,101 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:53:17,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=15501, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:17,101 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 126 states. [2018-07-23 13:53:18,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:18,797 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-07-23 13:53:18,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:53:18,797 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 125 [2018-07-23 13:53:18,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:18,798 INFO L225 Difference]: With dead ends: 128 [2018-07-23 13:53:18,798 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:53:18,799 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=249, Invalid=15501, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:53:18,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:53:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:53:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:53:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-07-23 13:53:18,936 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 125 [2018-07-23 13:53:18,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:18,936 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-07-23 13:53:18,936 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:53:18,936 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-07-23 13:53:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:53:18,936 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:18,937 INFO L357 BasicCegarLoop]: trace histogram [124, 1, 1] [2018-07-23 13:53:18,937 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:18,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1534386873, now seen corresponding path program 124 times [2018-07-23 13:53:18,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,418 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:20,419 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:53:20,419 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,419 INFO L185 omatonBuilderFactory]: Interpolants [40745#true, 40746#false, 40747#(and (<= y 42) (or (< 0 (+ (div x 2) 113)) (<= x (* 2 (div x 2)))) (<= 42 y)), 40748#(and (<= 44 y) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 44)), 40749#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 40750#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0))), 40751#(and (<= y 50) (<= 50 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 40752#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 52 y) (<= y 52)), 40753#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 54 y) (<= y 54)), 40754#(and (<= y 56) (or (<= (+ x 212) 0) (<= 0 (+ x 210))) (<= 56 y)), 40755#(and (<= 58 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 58)), 40756#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 40757#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 62) (<= 62 y)), 40758#(and (<= y 64) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 64 y)), 40759#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 40760#(and (<= 68 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 68)), 40761#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 70 y) (<= y 70)), 40762#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 40763#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 74) (<= 74 y)), 40764#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 76) (<= 76 y)), 40765#(and (<= y 78) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 78 y)), 40766#(and (<= y 80) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 80 y)), 40767#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 82) (<= 82 y)), 40768#(and (<= 84 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 84)), 40769#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 86 y) (<= y 86)), 40770#(and (<= y 88) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 88 y)), 40771#(and (<= y 90) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 90 y)), 40772#(and (<= 92 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 92)), 40773#(and (<= 94 y) (<= y 94) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 40774#(and (<= 96 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 96)), 40775#(and (<= y 98) (<= 98 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 40776#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 100 y) (<= y 100)), 40777#(and (<= y 102) (<= 102 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 40778#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 40779#(and (<= 106 y) (<= y 106) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 40780#(and (<= 108 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 108)), 40781#(and (<= 110 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 110)), 40782#(and (<= y 112) (<= 112 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154)))), 40783#(and (<= 114 y) (<= y 114) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 40784#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 116 y) (<= y 116)), 40785#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 118) (<= 118 y)), 40786#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 40787#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 40788#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 124) (<= 124 y)), 40789#(and (<= y 126) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 126 y)), 40790#(and (<= 128 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 128)), 40791#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 40792#(and (<= y 132) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 132 y)), 40793#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 134 y) (<= y 134)), 40794#(and (<= 136 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 136)), 40795#(and (<= 138 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 138)), 40796#(and (<= 140 y) (<= y 140) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 40797#(and (<= 142 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 142)), 40798#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 144) (<= 144 y)), 40799#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 146) (<= 146 y)), 40800#(and (<= 148 y) (<= y 148) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 40801#(and (<= y 150) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 150 y)), 40802#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 152) (<= 152 y)), 40803#(and (<= y 154) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 154 y)), 40804#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 156 y) (<= y 156)), 40805#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 158) (<= 158 y)), 40806#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 160 y) (<= y 160)), 40807#(and (<= y 162) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 162 y)), 40808#(and (<= 164 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 164)), 40809#(and (<= y 166) (<= 166 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 40810#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 168) (<= 168 y)), 40811#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 170) (<= 170 y)), 40812#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 172 y) (<= y 172)), 40813#(and (<= 174 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 174)), 40814#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 176) (<= 176 y)), 40815#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 178) (<= 178 y)), 40816#(and (<= 180 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 180)), 40817#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 182 y) (<= y 182)), 40818#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 40819#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 186 y) (<= y 186)), 40820#(and (<= y 188) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 188 y)), 40821#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 40822#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 192 y) (<= y 192)), 40823#(and (<= y 194) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 194 y)), 40824#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 196) (<= 196 y)), 40825#(and (<= 198 y) (<= y 198) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 40826#(and (<= 200 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 200)), 40827#(and (<= y 202) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 202 y)), 40828#(and (<= 204 y) (<= y 204) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 40829#(and (<= y 206) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 206 y)), 40830#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 208 y) (<= y 208)), 40831#(and (<= 210 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 210)), 40832#(and (<= 212 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 212)), 40833#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 214) (<= 214 y)), 40834#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 216) (<= 216 y)), 40835#(and (<= y 218) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 218 y)), 40836#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 220 y) (<= y 220)), 40837#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 40838#(and (<= 224 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 224)), 40839#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 40840#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 228) (<= 228 y)), 40841#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 40842#(and (<= 232 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 232)), 40843#(and (<= 234 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 234)), 40844#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 236 y) (<= y 236)), 40845#(and (<= y 238) (<= 238 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 40846#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 40847#(and (<= 242 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 242)), 40848#(and (<= y 244) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 244 y)), 40849#(and (<= 246 y) (<= y 246) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 40850#(and (<= y 248) (<= 248 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 40851#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 250) (<= 250 y)), 40852#(and (<= y 252) (<= 252 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 40853#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 254 y) (<= y 254)), 40854#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 256) (<= 256 y)), 40855#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 258) (<= 258 y)), 40856#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 40857#(and (<= 262 y) (<= y 262) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 40858#(and (<= y 264) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 264 y)), 40859#(and (<= y 266) (or (<= (+ x 2) 0) (<= 0 x)) (<= 266 y)), 40860#(and (<= y 268) (<= 268 y) (or (<= 2 x) (<= x 0))), 40861#(and (<= y 270) (or (<= 4 x) (<= x 2)) (<= 270 y)), 40862#(and (<= y 272) (<= 272 y) (or (<= x 4) (<= 6 x))), 40863#(and (<= 274 y) (or (<= 8 x) (<= x 6)) (<= y 274)), 40864#(and (<= y 276) (or (<= x 8) (<= 10 x)) (<= 276 y)), 40865#(and (or (<= 12 x) (<= x 10)) (<= 278 y) (<= y 278)), 40866#(and (<= y 280) (<= 280 y) (or (<= 14 x) (<= x 12))), 40867#(and (<= y 282) (<= 282 y) (or (<= x 14) (<= 16 x))), 40868#(and (or (<= 18 x) (<= x 16)) (<= y 284) (<= 284 y)), 40869#(and (or (<= 20 x) (<= x 18)) (<= 286 y) (<= y 286)), 40870#(and (or (<= 22 x) (<= x 20)) (<= 288 y) (<= y 288)), 40871#(and (<= 290 y) (or (<= 24 x) (<= x 22)) (<= y 290))] [2018-07-23 13:53:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7750 backedges. 0 proven. 7750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,420 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:53:20,420 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:53:20,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=15751, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:20,421 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 127 states. [2018-07-23 13:53:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:22,055 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:53:22,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:53:22,055 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 126 [2018-07-23 13:53:22,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:22,056 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:53:22,056 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:53:22,056 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=251, Invalid=15751, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:53:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:53:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:53:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:53:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:53:22,241 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 126 [2018-07-23 13:53:22,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:22,241 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:53:22,241 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:53:22,241 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:53:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:53:22,242 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:22,242 INFO L357 BasicCegarLoop]: trace histogram [125, 1, 1] [2018-07-23 13:53:22,242 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash -321352863, now seen corresponding path program 125 times [2018-07-23 13:53:22,242 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:23,779 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:23,779 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:53:23,779 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:23,780 INFO L185 omatonBuilderFactory]: Interpolants [41472#(and (<= 210 y) (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 210)), 41473#(and (<= 212 y) (<= y 212) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 41474#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 214) (<= 214 y)), 41475#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 216) (<= 216 y)), 41476#(and (<= y 218) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 218 y)), 41477#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 220 y) (<= y 220)), 41478#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 222) (<= 222 y)), 41479#(and (<= 224 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 224)), 41480#(and (<= 226 y) (<= y 226) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 41481#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 41482#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 230 y) (<= y 230)), 41483#(and (<= 232 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 232)), 41484#(and (<= 234 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 234)), 41485#(and (<= 236 y) (<= y 236) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 41486#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 238) (<= 238 y)), 41487#(and (<= y 240) (<= 240 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 41488#(and (<= 242 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 242)), 41489#(and (<= y 244) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 244 y)), 41490#(and (<= 246 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 246)), 41491#(and (<= y 248) (<= 248 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 41492#(and (<= y 250) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 250 y)), 41493#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 252) (<= 252 y)), 41494#(and (<= 254 y) (<= y 254) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 41495#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 256) (<= 256 y)), 41496#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 258) (<= 258 y)), 41497#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 41498#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 41499#(and (<= y 264) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 264 y)), 41500#(and (<= y 266) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 266 y)), 41501#(and (<= y 268) (<= 268 y) (or (<= (+ x 2) 0) (<= 0 x))), 41502#(and (<= y 270) (<= 270 y) (or (<= 2 x) (<= x 0))), 41503#(and (<= y 272) (<= 272 y) (or (<= 4 x) (<= x 2))), 41504#(and (or (<= x 4) (<= 6 x)) (<= 274 y) (<= y 274)), 41505#(and (<= y 276) (<= 276 y) (or (<= 8 x) (<= x 6))), 41506#(and (<= 278 y) (or (<= x 8) (<= 10 x)) (<= y 278)), 41507#(and (<= y 280) (or (<= 12 x) (<= x 10)) (<= 280 y)), 41508#(and (<= y 282) (<= 282 y) (or (<= 14 x) (<= x 12))), 41509#(and (or (<= x 14) (<= 16 x)) (<= y 284) (<= 284 y)), 41510#(and (or (<= 18 x) (<= x 16)) (<= 286 y) (<= y 286)), 41511#(and (<= 288 y) (or (<= 20 x) (<= x 18)) (<= y 288)), 41512#(and (<= 290 y) (or (<= 22 x) (<= x 20)) (<= y 290)), 41513#(and (or (<= 24 x) (<= x 22)) (<= 292 y) (<= y 292)), 41386#true, 41387#false, 41388#(and (<= y 42) (or (< 0 (+ (div x 2) 114)) (<= x (* 2 (div x 2)))) (<= 42 y)), 41389#(and (<= 44 y) (<= y 44) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 41390#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 46 y) (<= y 46)), 41391#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 41392#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0))), 41393#(and (<= 52 y) (<= y 52) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 41394#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 54 y) (<= y 54)), 41395#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 56) (<= 56 y)), 41396#(and (<= 58 y) (<= y 58) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 41397#(and (<= 60 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 60)), 41398#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 41399#(and (<= y 64) (<= 64 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204)))), 41400#(and (<= 66 y) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 66)), 41401#(and (<= 68 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 68)), 41402#(and (<= 70 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 70)), 41403#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 72) (<= 72 y)), 41404#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 41405#(and (<= y 76) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 76 y)), 41406#(and (<= y 78) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 78 y)), 41407#(and (<= y 80) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 80 y)), 41408#(and (<= y 82) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 82 y)), 41409#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 84 y) (<= y 84)), 41410#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 86 y) (<= y 86)), 41411#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 88) (<= 88 y)), 41412#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 41413#(and (<= 92 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 92)), 41414#(and (<= 94 y) (<= y 94) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 41415#(and (<= 96 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 96)), 41416#(and (<= y 98) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 98 y)), 41417#(and (<= 100 y) (<= y 100) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 41418#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 102) (<= 102 y)), 41419#(and (<= y 104) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 104 y)), 41420#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 41421#(and (<= 108 y) (<= y 108) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 41422#(and (<= 110 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 110)), 41423#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 41424#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 114 y) (<= y 114)), 41425#(and (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 116 y) (<= y 116)), 41426#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 118) (<= 118 y)), 41427#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 120) (<= 120 y)), 41428#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 41429#(and (<= y 124) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)) (<= 124 y)), 41430#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 126) (<= 126 y)), 41431#(and (<= 128 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 128)), 41432#(and (<= y 130) (<= 130 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 41433#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 132) (<= 132 y)), 41434#(and (<= 134 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 134)), 41435#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 136 y) (<= y 136)), 41436#(and (<= 138 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 138)), 41437#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 140 y) (<= y 140)), 41438#(and (<= 142 y) (<= y 142) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 41439#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 41440#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 146) (<= 146 y)), 41441#(and (<= 148 y) (<= y 148) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 41442#(and (<= y 150) (<= 150 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 41443#(and (<= y 152) (<= 152 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 41444#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 154) (<= 154 y)), 41445#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 156 y) (<= y 156)), 41446#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 158) (<= 158 y)), 41447#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 160 y) (<= y 160)), 41448#(and (<= y 162) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 162 y)), 41449#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 164 y) (<= y 164)), 41450#(and (<= y 166) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 166 y)), 41451#(and (<= y 168) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 168 y)), 41452#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 170) (<= 170 y)), 41453#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 172 y) (<= y 172)), 41454#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 174 y) (<= y 174)), 41455#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 176) (<= 176 y)), 41456#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 178) (<= 178 y)), 41457#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 180 y) (<= y 180)), 41458#(and (<= 182 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 182)), 41459#(and (<= y 184) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 184 y)), 41460#(and (<= 186 y) (<= y 186) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 41461#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 188) (<= 188 y)), 41462#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 41463#(and (<= 192 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 192)), 41464#(and (<= y 194) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 194 y)), 41465#(and (<= y 196) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 196 y)), 41466#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 198 y) (<= y 198)), 41467#(and (<= 200 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 200)), 41468#(and (<= y 202) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 202 y)), 41469#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 204 y) (<= y 204)), 41470#(and (<= y 206) (<= 206 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 41471#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 208 y) (<= y 208))] [2018-07-23 13:53:23,781 INFO L134 CoverageAnalysis]: Checked inductivity of 7875 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:23,781 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:53:23,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:53:23,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=16003, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:23,782 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 128 states. [2018-07-23 13:53:25,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:25,504 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-07-23 13:53:25,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:53:25,504 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 127 [2018-07-23 13:53:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:25,504 INFO L225 Difference]: With dead ends: 130 [2018-07-23 13:53:25,504 INFO L226 Difference]: Without dead ends: 129 [2018-07-23 13:53:25,505 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=253, Invalid=16003, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:53:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-07-23 13:53:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-07-23 13:53:25,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:53:25,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-07-23 13:53:25,659 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 127 [2018-07-23 13:53:25,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:25,660 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-07-23 13:53:25,660 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:53:25,660 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-07-23 13:53:25,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:53:25,660 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:25,660 INFO L357 BasicCegarLoop]: trace histogram [126, 1, 1] [2018-07-23 13:53:25,661 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:25,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1372004217, now seen corresponding path program 126 times [2018-07-23 13:53:25,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,228 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:27,228 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:53:27,229 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,229 INFO L185 omatonBuilderFactory]: Interpolants [42032#true, 42033#false, 42034#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 115)) (<= x (* 2 (div x 2))))), 42035#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 42036#(and (<= 46 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 46)), 42037#(and (<= y 48) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 48 y)), 42038#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 42039#(and (<= 52 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 52)), 42040#(and (<= 54 y) (<= y 54) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 42041#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 56) (<= 56 y)), 42042#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 58 y) (<= y 58)), 42043#(and (<= 60 y) (<= y 60) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 42044#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 62) (<= 62 y)), 42045#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 42046#(and (<= 66 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 66)), 42047#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 68 y) (<= y 68)), 42048#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 42049#(and (<= y 72) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 72 y)), 42050#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 74) (<= 74 y)), 42051#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 42052#(and (<= y 78) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 78 y)), 42053#(and (<= y 80) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 80 y)), 42054#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 82) (<= 82 y)), 42055#(and (<= 84 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 84)), 42056#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 86 y) (<= y 86)), 42057#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 88) (<= 88 y)), 42058#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 90) (<= 90 y)), 42059#(and (<= 92 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 92)), 42060#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 42061#(and (<= 96 y) (<= y 96) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 42062#(and (<= y 98) (<= 98 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 42063#(and (<= 100 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 100)), 42064#(and (<= y 102) (<= 102 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 42065#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 104) (<= 104 y)), 42066#(and (<= 106 y) (<= y 106) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 42067#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 42068#(and (<= 110 y) (<= y 110) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 42069#(and (<= y 112) (<= 112 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 42070#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 114 y) (<= y 114)), 42071#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 116 y) (<= y 116)), 42072#(and (<= y 118) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 118 y)), 42073#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 120) (<= 120 y)), 42074#(and (<= y 122) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 122 y)), 42075#(and (<= y 124) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 124 y)), 42076#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 42077#(and (<= 128 y) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 128)), 42078#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0))), 42079#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 132) (<= 132 y)), 42080#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 134 y) (<= y 134)), 42081#(and (<= 136 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 136)), 42082#(and (<= 138 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 138)), 42083#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 140 y) (<= y 140)), 42084#(and (<= 142 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 142)), 42085#(and (<= y 144) (<= 144 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 42086#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 146) (<= 146 y)), 42087#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 148 y) (<= y 148)), 42088#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 150) (<= 150 y)), 42089#(and (<= y 152) (<= 152 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 42090#(and (<= y 154) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 154 y)), 42091#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 156 y) (<= y 156)), 42092#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 158) (<= 158 y)), 42093#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 160 y) (<= y 160)), 42094#(and (<= y 162) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 162 y)), 42095#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 164 y) (<= y 164)), 42096#(and (<= y 166) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 166 y)), 42097#(and (<= y 168) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 168 y)), 42098#(and (<= y 170) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 170 y)), 42099#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 172 y) (<= y 172)), 42100#(and (<= 174 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 174)), 42101#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 176) (<= 176 y)), 42102#(and (<= y 178) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 178 y)), 42103#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 180 y) (<= y 180)), 42104#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 182 y) (<= y 182)), 42105#(and (<= y 184) (<= 184 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 42106#(and (<= 186 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 186)), 42107#(and (<= y 188) (<= 188 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 42108#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 190 y) (<= y 190)), 42109#(and (<= 192 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 192)), 42110#(and (<= y 194) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 194 y)), 42111#(and (<= y 196) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 196 y)), 42112#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 42113#(and (<= 200 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 200)), 42114#(and (<= y 202) (<= 202 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 42115#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 204 y) (<= y 204)), 42116#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 206) (<= 206 y)), 42117#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 208 y) (<= y 208)), 42118#(and (<= 210 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 210)), 42119#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 212 y) (<= y 212)), 42120#(and (<= y 214) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 214 y)), 42121#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 216) (<= 216 y)), 42122#(and (<= y 218) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 218 y)), 42123#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 220 y) (<= y 220)), 42124#(and (<= y 222) (<= 222 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 42125#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 224 y) (<= y 224)), 42126#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 42127#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 228) (<= 228 y)), 42128#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 42129#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 232 y) (<= y 232)), 42130#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 42131#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 42132#(and (<= y 238) (<= 238 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 42133#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 240) (<= 240 y)), 42134#(and (<= 242 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 242)), 42135#(and (<= y 244) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 244 y)), 42136#(and (<= 246 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 246)), 42137#(and (<= y 248) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 248 y)), 42138#(and (<= y 250) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 250 y)), 42139#(and (<= y 252) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 252 y)), 42140#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 254 y) (<= y 254)), 42141#(and (<= y 256) (or (<= (+ x 16) 0) (<= 0 (+ x 14))) (<= 256 y)), 42142#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 258) (<= 258 y)), 42143#(and (<= y 260) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 260 y)), 42144#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 42145#(and (<= y 264) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 264 y)), 42146#(and (<= y 266) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 266 y)), 42147#(and (<= y 268) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 268 y)), 42148#(and (<= y 270) (or (<= (+ x 2) 0) (<= 0 x)) (<= 270 y)), 42149#(and (<= y 272) (<= 272 y) (or (<= 2 x) (<= x 0))), 42150#(and (<= 274 y) (or (<= 4 x) (<= x 2)) (<= y 274)), 42151#(and (or (<= x 4) (<= 6 x)) (<= y 276) (<= 276 y)), 42152#(and (<= 278 y) (or (<= 8 x) (<= x 6)) (<= y 278)), 42153#(and (<= y 280) (<= 280 y) (or (<= x 8) (<= 10 x))), 42154#(and (or (<= 12 x) (<= x 10)) (<= y 282) (<= 282 y)), 42155#(and (<= y 284) (<= 284 y) (or (<= 14 x) (<= x 12))), 42156#(and (<= 286 y) (<= y 286) (or (<= x 14) (<= 16 x))), 42157#(and (or (<= 18 x) (<= x 16)) (<= 288 y) (<= y 288)), 42158#(and (<= 290 y) (or (<= 20 x) (<= x 18)) (<= y 290)), 42159#(and (or (<= 22 x) (<= x 20)) (<= 292 y) (<= y 292)), 42160#(and (or (<= 24 x) (<= x 22)) (<= 294 y) (<= y 294))] [2018-07-23 13:53:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8001 backedges. 0 proven. 8001 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:27,230 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:53:27,230 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:53:27,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=16257, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:27,231 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 129 states. [2018-07-23 13:53:28,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:28,993 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:53:28,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:53:28,993 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 128 [2018-07-23 13:53:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:28,994 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:53:28,994 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:53:28,994 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=255, Invalid=16257, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:53:28,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:53:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:53:29,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:53:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:53:29,137 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 128 [2018-07-23 13:53:29,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:29,137 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:53:29,137 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:53:29,137 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:53:29,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:53:29,138 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:29,138 INFO L357 BasicCegarLoop]: trace histogram [127, 1, 1] [2018-07-23 13:53:29,138 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:29,138 INFO L82 PathProgramCache]: Analyzing trace with hash 417542177, now seen corresponding path program 127 times [2018-07-23 13:53:29,138 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,754 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:30,755 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:53:30,755 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,756 INFO L185 omatonBuilderFactory]: Interpolants [42752#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 176) (<= 176 y)), 42753#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 178) (<= 178 y)), 42754#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 180 y) (<= y 180)), 42755#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 182 y) (<= y 182)), 42756#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 184) (<= 184 y)), 42757#(and (<= 186 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 186)), 42758#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 188) (<= 188 y)), 42759#(and (<= 190 y) (<= y 190) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 42760#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 192 y) (<= y 192)), 42761#(and (<= y 194) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 194 y)), 42762#(and (<= y 196) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 196 y)), 42763#(and (<= 198 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 198)), 42764#(and (<= 200 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 200)), 42765#(and (<= y 202) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 202 y)), 42766#(and (<= 204 y) (<= y 204) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 42767#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 206) (<= 206 y)), 42768#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 208 y) (<= y 208)), 42769#(and (<= 210 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 210)), 42770#(and (<= 212 y) (<= y 212) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 42771#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 214) (<= 214 y)), 42772#(and (<= y 216) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 216 y)), 42773#(and (<= y 218) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 218 y)), 42774#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 220 y) (<= y 220)), 42775#(and (<= y 222) (<= 222 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 42776#(and (<= 224 y) (<= y 224) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 42777#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 226 y) (<= y 226)), 42778#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 228) (<= 228 y)), 42779#(and (<= 230 y) (<= y 230) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 42780#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 42781#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 234 y) (<= y 234)), 42782#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 42783#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 42784#(and (<= y 240) (<= 240 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 42785#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 242 y) (<= y 242)), 42786#(and (<= y 244) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 244 y)), 42787#(and (<= 246 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 246)), 42788#(and (<= y 248) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 248 y)), 42789#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 250) (<= 250 y)), 42790#(and (<= y 252) (<= 252 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 42791#(and (<= 254 y) (<= y 254) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 42792#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 256) (<= 256 y)), 42793#(and (<= y 258) (<= 258 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 42794#(and (<= y 260) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 260 y)), 42795#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 42796#(and (<= y 264) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 264 y)), 42797#(and (<= y 266) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 266 y)), 42798#(and (<= y 268) (<= 268 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 42799#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 270) (<= 270 y)), 42800#(and (<= y 272) (<= 272 y) (or (<= (+ x 2) 0) (<= 0 x))), 42801#(and (<= 274 y) (or (<= 2 x) (<= x 0)) (<= y 274)), 42802#(and (<= y 276) (or (<= 4 x) (<= x 2)) (<= 276 y)), 42803#(and (or (<= x 4) (<= 6 x)) (<= 278 y) (<= y 278)), 42804#(and (<= y 280) (<= 280 y) (or (<= 8 x) (<= x 6))), 42805#(and (<= y 282) (or (<= x 8) (<= 10 x)) (<= 282 y)), 42806#(and (or (<= 12 x) (<= x 10)) (<= y 284) (<= 284 y)), 42807#(and (<= 286 y) (<= y 286) (or (<= 14 x) (<= x 12))), 42808#(and (<= 288 y) (or (<= x 14) (<= 16 x)) (<= y 288)), 42809#(and (<= 290 y) (or (<= 18 x) (<= x 16)) (<= y 290)), 42810#(and (or (<= 20 x) (<= x 18)) (<= 292 y) (<= y 292)), 42811#(and (or (<= 22 x) (<= x 20)) (<= 294 y) (<= y 294)), 42812#(and (or (<= 24 x) (<= x 22)) (<= y 296) (<= 296 y)), 42683#true, 42684#false, 42685#(and (<= y 42) (or (< 0 (+ (div x 2) 116)) (<= x (* 2 (div x 2)))) (<= 42 y)), 42686#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 42687#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 42688#(and (<= y 48) (<= 48 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 42689#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 50) (<= 50 y)), 42690#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 42691#(and (<= 54 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 54)), 42692#(and (<= y 56) (or (<= (+ x 218) 0) (<= 0 (+ x 216))) (<= 56 y)), 42693#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 58 y) (<= y 58)), 42694#(and (<= 60 y) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 60)), 42695#(and (<= y 62) (<= 62 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 42696#(and (<= y 64) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 64 y)), 42697#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 42698#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 68 y) (<= y 68)), 42699#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 70 y) (<= y 70)), 42700#(and (<= y 72) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 72 y)), 42701#(and (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 74) (<= 74 y)), 42702#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 76) (<= 76 y)), 42703#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 42704#(and (<= y 80) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 80 y)), 42705#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 82) (<= 82 y)), 42706#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 84 y) (<= y 84)), 42707#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 42708#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 88) (<= 88 y)), 42709#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 90) (<= 90 y)), 42710#(and (<= 92 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 92)), 42711#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 42712#(and (<= 96 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 96)), 42713#(and (<= y 98) (<= 98 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 42714#(and (<= 100 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 100)), 42715#(and (<= y 102) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 102 y)), 42716#(and (<= y 104) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 104 y)), 42717#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 106 y) (<= y 106)), 42718#(and (<= 108 y) (<= y 108) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 42719#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 42720#(and (<= y 112) (<= 112 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 42721#(and (<= 114 y) (<= y 114) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 42722#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 116 y) (<= y 116)), 42723#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 118) (<= 118 y)), 42724#(and (<= y 120) (<= 120 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 42725#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 122) (<= 122 y)), 42726#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 124) (<= 124 y)), 42727#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 42728#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 42729#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 130) (<= 130 y)), 42730#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 132) (<= 132 y)), 42731#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 134 y) (<= y 134)), 42732#(and (<= 136 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 136)), 42733#(and (<= 138 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 138)), 42734#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 140 y) (<= y 140)), 42735#(and (<= 142 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 142)), 42736#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 144) (<= 144 y)), 42737#(and (<= y 146) (<= 146 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 42738#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 42739#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 150) (<= 150 y)), 42740#(and (<= y 152) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 152 y)), 42741#(and (<= y 154) (<= 154 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 42742#(and (<= 156 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 156)), 42743#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 158) (<= 158 y)), 42744#(and (<= 160 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 160)), 42745#(and (<= y 162) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 162 y)), 42746#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 164 y) (<= y 164)), 42747#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 166) (<= 166 y)), 42748#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 168) (<= 168 y)), 42749#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 170) (<= 170 y)), 42750#(and (<= 172 y) (<= y 172) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 42751#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 174 y) (<= y 174))] [2018-07-23 13:53:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8128 backedges. 0 proven. 8128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,757 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:53:30,757 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:53:30,758 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=16513, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:30,759 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 130 states. [2018-07-23 13:53:32,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:32,592 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-07-23 13:53:32,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:53:32,592 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 129 [2018-07-23 13:53:32,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:32,593 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:53:32,593 INFO L226 Difference]: Without dead ends: 131 [2018-07-23 13:53:32,594 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=257, Invalid=16513, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:53:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-07-23 13:53:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-07-23 13:53:32,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-07-23 13:53:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-07-23 13:53:32,738 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 129 [2018-07-23 13:53:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:32,739 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-07-23 13:53:32,739 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:53:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-07-23 13:53:32,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 13:53:32,739 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:32,739 INFO L357 BasicCegarLoop]: trace histogram [128, 1, 1] [2018-07-23 13:53:32,740 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:32,740 INFO L82 PathProgramCache]: Analyzing trace with hash 58905543, now seen corresponding path program 128 times [2018-07-23 13:53:32,740 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,308 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:34,308 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:53:34,308 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,309 INFO L185 omatonBuilderFactory]: Interpolants [43339#true, 43340#false, 43341#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 117)) (<= x (* 2 (div x 2))))), 43342#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 230)) (<= (+ x 232) 0))), 43343#(and (<= 46 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0)) (<= y 46)), 43344#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 43345#(and (<= y 50) (<= 50 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 43346#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 52 y) (<= y 52)), 43347#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 43348#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 56) (<= 56 y)), 43349#(and (<= 58 y) (<= y 58) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 43350#(and (<= 60 y) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 60)), 43351#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 62) (<= 62 y)), 43352#(and (<= y 64) (<= 64 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 43353#(and (<= 66 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 66)), 43354#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 43355#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 70 y) (<= y 70)), 43356#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 72) (<= 72 y)), 43357#(and (<= y 74) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 74 y)), 43358#(and (<= y 76) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 76 y)), 43359#(and (<= y 78) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 78 y)), 43360#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 43361#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 82) (<= 82 y)), 43362#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 84 y) (<= y 84)), 43363#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 86 y) (<= y 86)), 43364#(and (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 88) (<= 88 y)), 43365#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 90) (<= 90 y)), 43366#(and (<= 92 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 92)), 43367#(and (<= 94 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 94)), 43368#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 43369#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 43370#(and (<= 100 y) (<= y 100) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 43371#(and (<= y 102) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 102 y)), 43372#(and (<= y 104) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 104 y)), 43373#(and (<= 106 y) (<= y 106) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 43374#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 108 y) (<= y 108)), 43375#(and (<= 110 y) (<= y 110) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 43376#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 43377#(and (<= 114 y) (<= y 114) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 43378#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 116 y) (<= y 116)), 43379#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 118) (<= 118 y)), 43380#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 120) (<= 120 y)), 43381#(and (<= y 122) (<= 122 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 43382#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 124) (<= 124 y)), 43383#(and (<= y 126) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 126 y)), 43384#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 43385#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 43386#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 132) (<= 132 y)), 43387#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 134 y) (<= y 134)), 43388#(and (<= 136 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 136)), 43389#(and (<= 138 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 138)), 43390#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 43391#(and (<= 142 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 142)), 43392#(and (<= y 144) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 144 y)), 43393#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 146) (<= 146 y)), 43394#(and (<= 148 y) (<= y 148) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 43395#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 150) (<= 150 y)), 43396#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 152) (<= 152 y)), 43397#(and (<= y 154) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 154 y)), 43398#(and (<= 156 y) (<= y 156) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 43399#(and (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 158) (<= 158 y)), 43400#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 160 y) (<= y 160)), 43401#(and (<= y 162) (<= 162 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 43402#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 164 y) (<= y 164)), 43403#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 166) (<= 166 y)), 43404#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 168) (<= 168 y)), 43405#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 170) (<= 170 y)), 43406#(and (<= 172 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 172)), 43407#(and (<= 174 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 174)), 43408#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 176) (<= 176 y)), 43409#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 178) (<= 178 y)), 43410#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 180 y) (<= y 180)), 43411#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 182 y) (<= y 182)), 43412#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 184) (<= 184 y)), 43413#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 186 y) (<= y 186)), 43414#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 188) (<= 188 y)), 43415#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 190 y) (<= y 190)), 43416#(and (<= 192 y) (<= y 192) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 43417#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 194) (<= 194 y)), 43418#(and (<= y 196) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 196 y)), 43419#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 43420#(and (<= 200 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 200)), 43421#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 43422#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 204 y) (<= y 204)), 43423#(and (<= y 206) (<= 206 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 43424#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 208 y) (<= y 208)), 43425#(and (<= 210 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 210)), 43426#(and (<= 212 y) (<= y 212) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 43427#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 214) (<= 214 y)), 43428#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 216) (<= 216 y)), 43429#(and (<= y 218) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 218 y)), 43430#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 220 y) (<= y 220)), 43431#(and (<= y 222) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 222 y)), 43432#(and (<= 224 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 224)), 43433#(and (<= 226 y) (<= y 226) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 43434#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 228) (<= 228 y)), 43435#(and (<= 230 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 230)), 43436#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 232 y) (<= y 232)), 43437#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 43438#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 236 y) (<= y 236)), 43439#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 43440#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 43441#(and (<= 242 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 242)), 43442#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 244) (<= 244 y)), 43443#(and (<= 246 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 246)), 43444#(and (<= y 248) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 248 y)), 43445#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 250) (<= 250 y)), 43446#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 252) (<= 252 y)), 43447#(and (<= 254 y) (<= y 254) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 43448#(and (<= y 256) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 256 y)), 43449#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 258) (<= 258 y)), 43450#(and (<= y 260) (<= 260 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 43451#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 262 y) (<= y 262)), 43452#(and (<= y 264) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 264 y)), 43453#(and (<= y 266) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 266 y)), 43454#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 43455#(and (<= y 270) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 270 y)), 43456#(and (<= y 272) (<= 272 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2)))), 43457#(and (<= 274 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 274)), 43458#(and (<= y 276) (<= 276 y) (or (<= 2 x) (<= x 0))), 43459#(and (<= 278 y) (or (<= 4 x) (<= x 2)) (<= y 278)), 43460#(and (<= y 280) (or (<= x 4) (<= 6 x)) (<= 280 y)), 43461#(and (<= y 282) (<= 282 y) (or (<= 8 x) (<= x 6))), 43462#(and (or (<= x 8) (<= 10 x)) (<= y 284) (<= 284 y)), 43463#(and (or (<= 12 x) (<= x 10)) (<= 286 y) (<= y 286)), 43464#(and (<= 288 y) (<= y 288) (or (<= 14 x) (<= x 12))), 43465#(and (<= 290 y) (or (<= x 14) (<= 16 x)) (<= y 290)), 43466#(and (or (<= 18 x) (<= x 16)) (<= 292 y) (<= y 292)), 43467#(and (<= 294 y) (or (<= 20 x) (<= x 18)) (<= y 294)), 43468#(and (or (<= 22 x) (<= x 20)) (<= y 296) (<= 296 y)), 43469#(and (or (<= 24 x) (<= x 22)) (<= y 298) (<= 298 y))] [2018-07-23 13:53:34,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8256 backedges. 0 proven. 8256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,310 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:53:34,310 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:53:34,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=16771, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:53:34,311 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 131 states. [2018-07-23 13:53:36,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:36,150 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:53:36,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:53:36,150 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 130 [2018-07-23 13:53:36,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:36,151 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:53:36,151 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:53:36,151 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=259, Invalid=16771, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:53:36,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:53:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:53:36,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:53:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:53:36,298 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 130 [2018-07-23 13:53:36,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:36,298 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:53:36,298 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:53:36,298 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:53:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:53:36,299 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:36,299 INFO L357 BasicCegarLoop]: trace histogram [129, 1, 1] [2018-07-23 13:53:36,299 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:36,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1826071777, now seen corresponding path program 129 times [2018-07-23 13:53:36,299 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,897 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:37,897 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:53:37,898 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,898 INFO L185 omatonBuilderFactory]: Interpolants [44032#(and (<= y 102) (<= 102 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 44033#(and (<= y 104) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 104 y)), 44034#(and (<= 106 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 106)), 44035#(and (<= 108 y) (<= y 108) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 44036#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 110 y) (<= y 110)), 44037#(and (<= y 112) (<= 112 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 44038#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 44039#(and (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 116 y) (<= y 116)), 44040#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 118) (<= 118 y)), 44041#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 120) (<= 120 y)), 44042#(and (<= y 122) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 122 y)), 44043#(and (<= y 124) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= 124 y)), 44044#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 126) (<= 126 y)), 44045#(and (<= 128 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 128)), 44046#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 44047#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 44048#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 134 y) (<= y 134)), 44049#(and (<= 136 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 136)), 44050#(and (<= 138 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 138)), 44051#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 44052#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 44053#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 144) (<= 144 y)), 44054#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 146) (<= 146 y)), 44055#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 148 y) (<= y 148)), 44056#(and (<= y 150) (<= 150 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 44057#(and (<= y 152) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 152 y)), 44058#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 154) (<= 154 y)), 44059#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 156 y) (<= y 156)), 44060#(and (<= y 158) (<= 158 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 44061#(and (<= 160 y) (<= y 160) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 44062#(and (<= y 162) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 162 y)), 44063#(and (<= 164 y) (<= y 164) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 44064#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 166) (<= 166 y)), 44065#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 168) (<= 168 y)), 44066#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 170) (<= 170 y)), 44067#(and (<= 172 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 172)), 44068#(and (<= 174 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 174)), 44069#(and (<= y 176) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 176 y)), 44070#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 178) (<= 178 y)), 44071#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 180 y) (<= y 180)), 44072#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 182 y) (<= y 182)), 44073#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 184) (<= 184 y)), 44074#(and (<= 186 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 186)), 44075#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 188) (<= 188 y)), 44076#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 190 y) (<= y 190)), 44077#(and (<= 192 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 192)), 44078#(and (<= y 194) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= 194 y)), 44079#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 196) (<= 196 y)), 44080#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 44081#(and (<= 200 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 200)), 44082#(and (<= y 202) (<= 202 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 44083#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 44084#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 206) (<= 206 y)), 44085#(and (<= 208 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 208)), 44086#(and (<= 210 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 210)), 44087#(and (<= 212 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 212)), 44088#(and (<= y 214) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 214 y)), 44089#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 216) (<= 216 y)), 44090#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 218) (<= 218 y)), 44091#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 220 y) (<= y 220)), 44092#(and (<= y 222) (<= 222 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 44093#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 224 y) (<= y 224)), 44094#(and (<= 226 y) (<= y 226) (or (<= (+ x 52) 0) (<= 0 (+ x 50)))), 44095#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 228) (<= 228 y)), 44096#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 230 y) (<= y 230)), 44097#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 232 y) (<= y 232)), 44098#(and (<= 234 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 234)), 44099#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 44100#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 238) (<= 238 y)), 44101#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 44102#(and (<= 242 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 242)), 44103#(and (<= y 244) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 244 y)), 44104#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 246 y) (<= y 246)), 44105#(and (<= y 248) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 248 y)), 44106#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 250) (<= 250 y)), 44107#(and (<= y 252) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 252 y)), 44108#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 254 y) (<= y 254)), 44109#(and (<= y 256) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 256 y)), 44110#(and (<= y 258) (<= 258 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 44111#(and (<= y 260) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 260 y)), 44112#(and (<= 262 y) (<= y 262) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 44113#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 264) (<= 264 y)), 44114#(and (<= y 266) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 266 y)), 44115#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 44116#(and (<= y 270) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 270 y)), 44117#(and (<= y 272) (<= 272 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 44118#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 274 y) (<= y 274)), 44119#(and (<= y 276) (or (<= (+ x 2) 0) (<= 0 x)) (<= 276 y)), 44120#(and (<= 278 y) (<= y 278) (or (<= 2 x) (<= x 0))), 44121#(and (<= y 280) (<= 280 y) (or (<= 4 x) (<= x 2))), 44122#(and (or (<= x 4) (<= 6 x)) (<= y 282) (<= 282 y)), 44123#(and (or (<= 8 x) (<= x 6)) (<= y 284) (<= 284 y)), 44124#(and (or (<= x 8) (<= 10 x)) (<= 286 y) (<= y 286)), 44125#(and (or (<= 12 x) (<= x 10)) (<= 288 y) (<= y 288)), 44126#(and (<= 290 y) (<= y 290) (or (<= 14 x) (<= x 12))), 44127#(and (<= 292 y) (<= y 292) (or (<= x 14) (<= 16 x))), 44128#(and (or (<= 18 x) (<= x 16)) (<= 294 y) (<= y 294)), 44129#(and (<= y 296) (or (<= 20 x) (<= x 18)) (<= 296 y)), 44130#(and (or (<= 22 x) (<= x 20)) (<= y 298) (<= 298 y)), 44131#(and (<= 300 y) (or (<= 24 x) (<= x 22)) (<= y 300)), 44000#true, 44001#false, 44002#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 118)) (<= x (* 2 (div x 2))))), 44003#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 44004#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 46 y) (<= y 46)), 44005#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 44006#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 44007#(and (<= 52 y) (<= y 52) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 44008#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 54 y) (<= y 54)), 44009#(and (<= y 56) (<= 56 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 44010#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 218)) (<= (+ x 220) 0))), 44011#(and (<= 60 y) (<= y 60) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 44012#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 62) (<= 62 y)), 44013#(and (<= y 64) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 64 y)), 44014#(and (<= 66 y) (<= y 66) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 44015#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 68 y) (<= y 68)), 44016#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 44017#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 72) (<= 72 y)), 44018#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 74) (<= 74 y)), 44019#(and (<= y 76) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 76 y)), 44020#(and (<= y 78) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 78 y)), 44021#(and (<= y 80) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 80 y)), 44022#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 44023#(and (<= 84 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 84)), 44024#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 86 y) (<= y 86)), 44025#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 88) (<= 88 y)), 44026#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 44027#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 92 y) (<= y 92)), 44028#(and (<= 94 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 94)), 44029#(and (<= 96 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 96)), 44030#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 44031#(and (<= 100 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 100))] [2018-07-23 13:53:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 8385 backedges. 0 proven. 8385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,899 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:53:37,899 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:53:37,900 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=17031, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:53:37,900 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 132 states. [2018-07-23 13:53:39,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:39,788 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-07-23 13:53:39,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:53:39,789 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 131 [2018-07-23 13:53:39,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:39,789 INFO L225 Difference]: With dead ends: 134 [2018-07-23 13:53:39,789 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:53:39,790 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=261, Invalid=17031, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:53:39,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:53:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:53:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:53:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2018-07-23 13:53:39,938 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 131 [2018-07-23 13:53:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:39,938 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 133 transitions. [2018-07-23 13:53:39,938 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:53:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 133 transitions. [2018-07-23 13:53:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:53:39,939 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:39,939 INFO L357 BasicCegarLoop]: trace histogram [130, 1, 1] [2018-07-23 13:53:39,939 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash 773650183, now seen corresponding path program 130 times [2018-07-23 13:53:39,939 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:41,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:41,559 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:41,559 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:53:41,559 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:41,560 INFO L185 omatonBuilderFactory]: Interpolants [44666#true, 44667#false, 44668#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 119)) (<= x (* 2 (div x 2))))), 44669#(and (<= 44 y) (<= y 44) (or (<= (+ x 236) 0) (<= 0 (+ x 234)))), 44670#(and (<= 46 y) (<= y 46) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 44671#(and (<= y 48) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 48 y)), 44672#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 44673#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 44674#(and (<= 54 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 54)), 44675#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 56) (<= 56 y)), 44676#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 44677#(and (<= 60 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 60)), 44678#(and (<= y 62) (or (<= (+ x 218) 0) (<= 0 (+ x 216))) (<= 62 y)), 44679#(and (<= y 64) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 64 y)), 44680#(and (<= 66 y) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 66)), 44681#(and (<= 68 y) (<= y 68) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 44682#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 70 y) (<= y 70)), 44683#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 44684#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 74) (<= 74 y)), 44685#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 76) (<= 76 y)), 44686#(and (<= y 78) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 78 y)), 44687#(and (<= y 80) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 80 y)), 44688#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 82) (<= 82 y)), 44689#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 44690#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 86 y) (<= y 86)), 44691#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 88) (<= 88 y)), 44692#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 90) (<= 90 y)), 44693#(and (<= 92 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 92)), 44694#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 94 y) (<= y 94)), 44695#(and (<= 96 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 96)), 44696#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 98) (<= 98 y)), 44697#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 44698#(and (<= y 102) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 102 y)), 44699#(and (<= y 104) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 104 y)), 44700#(and (<= 106 y) (<= y 106) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 44701#(and (<= 108 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 108)), 44702#(and (<= 110 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 110)), 44703#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 112) (<= 112 y)), 44704#(and (<= 114 y) (<= y 114) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 44705#(and (<= 116 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0)) (<= y 116)), 44706#(and (<= y 118) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 118 y)), 44707#(and (<= y 120) (<= 120 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 44708#(and (<= y 122) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 122 y)), 44709#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 124) (<= 124 y)), 44710#(and (<= y 126) (<= 126 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 44711#(and (<= 128 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 128)), 44712#(and (<= y 130) (<= 130 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 44713#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 44714#(and (<= 134 y) (<= y 134) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 44715#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 136 y) (<= y 136)), 44716#(and (<= 138 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 138)), 44717#(and (<= 140 y) (<= y 140) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 44718#(and (<= 142 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 142)), 44719#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 44720#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 146) (<= 146 y)), 44721#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 148 y) (<= y 148)), 44722#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 150) (<= 150 y)), 44723#(and (<= y 152) (<= 152 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 44724#(and (<= y 154) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 154 y)), 44725#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 156 y) (<= y 156)), 44726#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 158) (<= 158 y)), 44727#(and (<= 160 y) (<= y 160) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 44728#(and (<= y 162) (<= 162 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 44729#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 164 y) (<= y 164)), 44730#(and (<= y 166) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 166 y)), 44731#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 168) (<= 168 y)), 44732#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 170) (<= 170 y)), 44733#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 172 y) (<= y 172)), 44734#(and (<= 174 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 174)), 44735#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 176) (<= 176 y)), 44736#(and (<= y 178) (<= 178 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 44737#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 180 y) (<= y 180)), 44738#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 182 y) (<= y 182)), 44739#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 184) (<= 184 y)), 44740#(and (<= 186 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 186)), 44741#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 188) (<= 188 y)), 44742#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 190 y) (<= y 190)), 44743#(and (<= 192 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 192)), 44744#(and (<= y 194) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 194 y)), 44745#(and (<= y 196) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= 196 y)), 44746#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 198 y) (<= y 198)), 44747#(and (<= 200 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 200)), 44748#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 44749#(and (<= 204 y) (<= y 204) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 44750#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 44751#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 208 y) (<= y 208)), 44752#(and (<= 210 y) (<= y 210) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 44753#(and (<= 212 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 212)), 44754#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 214) (<= 214 y)), 44755#(and (<= y 216) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 216 y)), 44756#(and (<= y 218) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 218 y)), 44757#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 220 y) (<= y 220)), 44758#(and (<= y 222) (<= 222 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 44759#(and (<= 224 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 224)), 44760#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 226 y) (<= y 226)), 44761#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 228) (<= 228 y)), 44762#(and (<= 230 y) (<= y 230) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 44763#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 232 y) (<= y 232)), 44764#(and (<= 234 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 234)), 44765#(and (<= 236 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 236)), 44766#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 44767#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 240) (<= 240 y)), 44768#(and (<= 242 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 242)), 44769#(and (<= y 244) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 244 y)), 44770#(and (<= 246 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 246)), 44771#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 248) (<= 248 y)), 44772#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 250) (<= 250 y)), 44773#(and (<= y 252) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 252 y)), 44774#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 254 y) (<= y 254)), 44775#(and (<= y 256) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 256 y)), 44776#(and (<= y 258) (<= 258 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 44777#(and (<= y 260) (<= 260 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 44778#(and (<= 262 y) (<= y 262) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 44779#(and (<= y 264) (<= 264 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 44780#(and (<= y 266) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 266 y)), 44781#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 44782#(and (<= y 270) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 270 y)), 44783#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 44784#(and (<= 274 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 274)), 44785#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 276) (<= 276 y)), 44786#(and (<= 278 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 278)), 44787#(and (<= y 280) (<= 280 y) (or (<= 2 x) (<= x 0))), 44788#(and (<= y 282) (or (<= 4 x) (<= x 2)) (<= 282 y)), 44789#(and (or (<= x 4) (<= 6 x)) (<= y 284) (<= 284 y)), 44790#(and (<= 286 y) (or (<= 8 x) (<= x 6)) (<= y 286)), 44791#(and (or (<= x 8) (<= 10 x)) (<= 288 y) (<= y 288)), 44792#(and (<= 290 y) (or (<= 12 x) (<= x 10)) (<= y 290)), 44793#(and (<= 292 y) (<= y 292) (or (<= 14 x) (<= x 12))), 44794#(and (<= 294 y) (<= y 294) (or (<= x 14) (<= 16 x))), 44795#(and (or (<= 18 x) (<= x 16)) (<= y 296) (<= 296 y)), 44796#(and (or (<= 20 x) (<= x 18)) (<= y 298) (<= 298 y)), 44797#(and (<= 300 y) (or (<= 22 x) (<= x 20)) (<= y 300)), 44798#(and (<= 302 y) (or (<= 24 x) (<= x 22)) (<= y 302))] [2018-07-23 13:53:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 8515 backedges. 0 proven. 8515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:41,561 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:53:41,561 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:53:41,562 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=17293, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:53:41,562 INFO L87 Difference]: Start difference. First operand 133 states and 133 transitions. Second operand 133 states. [2018-07-23 13:53:43,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:43,453 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:53:43,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:53:43,453 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 132 [2018-07-23 13:53:43,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:43,454 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:53:43,454 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:53:43,454 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=263, Invalid=17293, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:53:43,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:53:43,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:53:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:53:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:53:43,605 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 132 [2018-07-23 13:53:43,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:43,606 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:53:43,606 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:53:43,606 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:53:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:53:43,606 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:43,606 INFO L357 BasicCegarLoop]: trace histogram [131, 1, 1] [2018-07-23 13:53:43,606 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:43,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1786648159, now seen corresponding path program 131 times [2018-07-23 13:53:43,607 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,283 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:45,283 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:53:45,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,284 INFO L185 omatonBuilderFactory]: Interpolants [45337#true, 45338#false, 45339#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 120)) (<= x (* 2 (div x 2))))), 45340#(and (<= 44 y) (<= y 44) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 45341#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 46 y) (<= y 46)), 45342#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 45343#(and (<= y 50) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 50 y)), 45344#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 45345#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 45346#(and (<= y 56) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 56 y)), 45347#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 58 y) (<= y 58)), 45348#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 45349#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 62) (<= 62 y)), 45350#(and (<= y 64) (<= 64 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 45351#(and (<= 66 y) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 66)), 45352#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 68 y) (<= y 68)), 45353#(and (<= 70 y) (<= y 70) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 45354#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 72) (<= 72 y)), 45355#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 45356#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 76) (<= 76 y)), 45357#(and (<= y 78) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 78 y)), 45358#(and (<= y 80) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 80 y)), 45359#(and (<= y 82) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 82 y)), 45360#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 84 y) (<= y 84)), 45361#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 45362#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 88) (<= 88 y)), 45363#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 90) (<= 90 y)), 45364#(and (<= 92 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 92)), 45365#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 45366#(and (<= 96 y) (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 96)), 45367#(and (<= y 98) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 98 y)), 45368#(and (<= 100 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 100)), 45369#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 45370#(and (<= y 104) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 104 y)), 45371#(and (<= 106 y) (<= y 106) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 45372#(and (<= 108 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 108)), 45373#(and (<= 110 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 110)), 45374#(and (<= y 112) (<= 112 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 45375#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 114 y) (<= y 114)), 45376#(and (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 116 y) (<= y 116)), 45377#(and (<= y 118) (<= 118 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 45378#(and (<= y 120) (<= 120 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 45379#(and (<= y 122) (<= 122 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 45380#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 124) (<= 124 y)), 45381#(and (<= y 126) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 126 y)), 45382#(and (<= 128 y) (<= y 128) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 45383#(and (<= y 130) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 130 y)), 45384#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 132) (<= 132 y)), 45385#(and (<= 134 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 134)), 45386#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 45387#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 138 y) (<= y 138)), 45388#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 140 y) (<= y 140)), 45389#(and (<= 142 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 142)), 45390#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 45391#(and (<= y 146) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 146 y)), 45392#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 148 y) (<= y 148)), 45393#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 150) (<= 150 y)), 45394#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 152) (<= 152 y)), 45395#(and (<= y 154) (<= 154 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 45396#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 156 y) (<= y 156)), 45397#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 158) (<= 158 y)), 45398#(and (<= 160 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 160)), 45399#(and (<= y 162) (<= 162 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 45400#(and (<= 164 y) (<= y 164) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 45401#(and (<= y 166) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 166 y)), 45402#(and (<= y 168) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 168 y)), 45403#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 170) (<= 170 y)), 45404#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 172 y) (<= y 172)), 45405#(and (<= 174 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 174)), 45406#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 176) (<= 176 y)), 45407#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 45408#(and (<= 180 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 180)), 45409#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 182 y) (<= y 182)), 45410#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 184) (<= 184 y)), 45411#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 186 y) (<= y 186)), 45412#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 188) (<= 188 y)), 45413#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 190 y) (<= y 190)), 45414#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 192 y) (<= y 192)), 45415#(and (<= y 194) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 194 y)), 45416#(and (<= y 196) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 196 y)), 45417#(and (<= 198 y) (<= y 198) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 45418#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 200 y) (<= y 200)), 45419#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 45420#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 45421#(and (<= y 206) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 206 y)), 45422#(and (<= 208 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 208)), 45423#(and (<= 210 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 210)), 45424#(and (<= 212 y) (<= y 212) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 45425#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 214) (<= 214 y)), 45426#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 216) (<= 216 y)), 45427#(and (<= y 218) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 218 y)), 45428#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 220 y) (<= y 220)), 45429#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 222) (<= 222 y)), 45430#(and (<= 224 y) (<= y 224) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 45431#(and (<= 226 y) (<= y 226) (or (<= (+ x 56) 0) (<= 0 (+ x 54)))), 45432#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 228) (<= 228 y)), 45433#(and (<= 230 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 230)), 45434#(and (<= 232 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 232)), 45435#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 234 y) (<= y 234)), 45436#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 236 y) (<= y 236)), 45437#(and (<= y 238) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 238 y)), 45438#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 45439#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 242 y) (<= y 242)), 45440#(and (<= y 244) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 244 y)), 45441#(and (<= 246 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 246)), 45442#(and (<= y 248) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 248 y)), 45443#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 250) (<= 250 y)), 45444#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 252) (<= 252 y)), 45445#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 254 y) (<= y 254)), 45446#(and (<= y 256) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 256 y)), 45447#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 258) (<= 258 y)), 45448#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 45449#(and (<= 262 y) (<= y 262) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 45450#(and (<= y 264) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 264 y)), 45451#(and (<= y 266) (<= 266 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 45452#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 268) (<= 268 y)), 45453#(and (<= y 270) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 270 y)), 45454#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 45455#(and (<= 274 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 274)), 45456#(and (<= y 276) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 276 y)), 45457#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 278 y) (<= y 278)), 45458#(and (<= y 280) (<= 280 y) (or (<= (+ x 2) 0) (<= 0 x))), 45459#(and (<= y 282) (<= 282 y) (or (<= 2 x) (<= x 0))), 45460#(and (or (<= 4 x) (<= x 2)) (<= y 284) (<= 284 y)), 45461#(and (or (<= x 4) (<= 6 x)) (<= 286 y) (<= y 286)), 45462#(and (<= 288 y) (or (<= 8 x) (<= x 6)) (<= y 288)), 45463#(and (<= 290 y) (or (<= x 8) (<= 10 x)) (<= y 290)), 45464#(and (or (<= 12 x) (<= x 10)) (<= 292 y) (<= y 292)), 45465#(and (<= 294 y) (<= y 294) (or (<= 14 x) (<= x 12))), 45466#(and (<= y 296) (<= 296 y) (or (<= x 14) (<= 16 x))), 45467#(and (or (<= 18 x) (<= x 16)) (<= y 298) (<= 298 y)), 45468#(and (<= 300 y) (<= y 300) (or (<= 20 x) (<= x 18))), 45469#(and (<= 302 y) (or (<= 22 x) (<= x 20)) (<= y 302)), 45470#(and (or (<= 24 x) (<= x 22)) (<= 304 y) (<= y 304))] [2018-07-23 13:53:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 8646 backedges. 0 proven. 8646 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,285 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:53:45,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:53:45,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=17557, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:53:45,286 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 134 states. [2018-07-23 13:53:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:47,213 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-07-23 13:53:47,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:53:47,214 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 133 [2018-07-23 13:53:47,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:47,214 INFO L225 Difference]: With dead ends: 136 [2018-07-23 13:53:47,214 INFO L226 Difference]: Without dead ends: 135 [2018-07-23 13:53:47,215 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=265, Invalid=17557, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:53:47,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-07-23 13:53:47,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-07-23 13:53:47,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:53:47,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-07-23 13:53:47,367 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 133 [2018-07-23 13:53:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:47,367 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-07-23 13:53:47,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:53:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-07-23 13:53:47,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:53:47,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:47,368 INFO L357 BasicCegarLoop]: trace histogram [132, 1, 1] [2018-07-23 13:53:47,368 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:47,368 INFO L82 PathProgramCache]: Analyzing trace with hash 448481863, now seen corresponding path program 132 times [2018-07-23 13:53:47,368 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,051 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:49,051 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:53:49,051 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,052 INFO L185 omatonBuilderFactory]: Interpolants [46080#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 172 y) (<= y 172)), 46081#(and (<= 174 y) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 174)), 46082#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 176) (<= 176 y)), 46083#(and (<= y 178) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 178 y)), 46084#(and (<= 180 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 180)), 46085#(and (<= 182 y) (<= y 182) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 46086#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 184) (<= 184 y)), 46087#(and (<= 186 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 186)), 46088#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 188) (<= 188 y)), 46089#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 190 y) (<= y 190)), 46090#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 192 y) (<= y 192)), 46091#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 194) (<= 194 y)), 46092#(and (<= y 196) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 196 y)), 46093#(and (<= 198 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 198)), 46094#(and (<= 200 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= y 200)), 46095#(and (<= y 202) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 202 y)), 46096#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 46097#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 46098#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 208 y) (<= y 208)), 46099#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 46100#(and (<= 212 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 212)), 46101#(and (<= y 214) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 214 y)), 46102#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 216) (<= 216 y)), 46103#(and (<= y 218) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 218 y)), 46104#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 220 y) (<= y 220)), 46105#(and (<= y 222) (<= 222 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 46106#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 224 y) (<= y 224)), 46107#(and (<= 226 y) (<= y 226) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 46108#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 228) (<= 228 y)), 46109#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 230 y) (<= y 230)), 46110#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 232 y) (<= y 232)), 46111#(and (<= 234 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 234)), 46112#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 236 y) (<= y 236)), 46113#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 238) (<= 238 y)), 46114#(and (<= y 240) (<= 240 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 46115#(and (<= 242 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 242)), 46116#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 244) (<= 244 y)), 46117#(and (<= 246 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 246)), 46118#(and (<= y 248) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 248 y)), 46119#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 250) (<= 250 y)), 46120#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 252) (<= 252 y)), 46121#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 254 y) (<= y 254)), 46122#(and (<= y 256) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 256 y)), 46123#(and (<= y 258) (<= 258 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 46124#(and (<= y 260) (<= 260 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 46125#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 46126#(and (<= y 264) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 264 y)), 46127#(and (<= y 266) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 266 y)), 46128#(and (<= y 268) (<= 268 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 46129#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 270) (<= 270 y)), 46130#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 46131#(and (<= 274 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 274)), 46132#(and (<= y 276) (<= 276 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 46133#(and (<= 278 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 278)), 46134#(and (<= y 280) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 280 y)), 46135#(and (<= y 282) (or (<= (+ x 2) 0) (<= 0 x)) (<= 282 y)), 46136#(and (<= y 284) (or (<= 2 x) (<= x 0)) (<= 284 y)), 46137#(and (or (<= 4 x) (<= x 2)) (<= 286 y) (<= y 286)), 46138#(and (or (<= x 4) (<= 6 x)) (<= 288 y) (<= y 288)), 46139#(and (<= 290 y) (or (<= 8 x) (<= x 6)) (<= y 290)), 46140#(and (or (<= x 8) (<= 10 x)) (<= 292 y) (<= y 292)), 46141#(and (or (<= 12 x) (<= x 10)) (<= 294 y) (<= y 294)), 46142#(and (<= y 296) (<= 296 y) (or (<= 14 x) (<= x 12))), 46143#(and (<= y 298) (<= 298 y) (or (<= x 14) (<= 16 x))), 46144#(and (<= 300 y) (or (<= 18 x) (<= x 16)) (<= y 300)), 46145#(and (<= 302 y) (<= y 302) (or (<= 20 x) (<= x 18))), 46146#(and (or (<= 22 x) (<= x 20)) (<= 304 y) (<= y 304)), 46147#(and (<= y 306) (<= 306 y) (or (<= 24 x) (<= x 22))), 46013#true, 46014#false, 46015#(and (or (< 0 (+ (div x 2) 121)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 46016#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 238)) (<= (+ x 240) 0))), 46017#(and (<= 46 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= y 46)), 46018#(and (<= y 48) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 48 y)), 46019#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 46020#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 52 y) (<= y 52)), 46021#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 46022#(and (<= y 56) (or (<= 0 (+ x 226)) (<= (+ x 228) 0)) (<= 56 y)), 46023#(and (<= 58 y) (<= y 58) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 46024#(and (<= 60 y) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 60)), 46025#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 46026#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0))), 46027#(and (<= 66 y) (<= y 66) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 46028#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 68 y) (<= y 68)), 46029#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 70 y) (<= y 70)), 46030#(and (<= y 72) (<= 72 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 46031#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 74) (<= 74 y)), 46032#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 46033#(and (<= y 78) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 78 y)), 46034#(and (<= y 80) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 80 y)), 46035#(and (<= y 82) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 82 y)), 46036#(and (<= 84 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 84)), 46037#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 86 y) (<= y 86)), 46038#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 46039#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 90) (<= 90 y)), 46040#(and (<= 92 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 92)), 46041#(and (<= 94 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 94)), 46042#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 46043#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 98) (<= 98 y)), 46044#(and (<= 100 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 100)), 46045#(and (<= y 102) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 102 y)), 46046#(and (<= y 104) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 104 y)), 46047#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 46048#(and (<= 108 y) (<= y 108) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 46049#(and (<= 110 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 110)), 46050#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 46051#(and (<= 114 y) (<= y 114) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 46052#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 116 y) (<= y 116)), 46053#(and (<= y 118) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 118 y)), 46054#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 46055#(and (<= y 122) (<= 122 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 46056#(and (<= y 124) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 124 y)), 46057#(and (<= y 126) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 126 y)), 46058#(and (<= 128 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 128)), 46059#(and (<= y 130) (<= 130 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 46060#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 132) (<= 132 y)), 46061#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 134 y) (<= y 134)), 46062#(and (<= 136 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 136)), 46063#(and (<= 138 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0)) (<= y 138)), 46064#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 140 y) (<= y 140)), 46065#(and (<= 142 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 142)), 46066#(and (<= y 144) (<= 144 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 46067#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 146) (<= 146 y)), 46068#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 46069#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 150) (<= 150 y)), 46070#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 152) (<= 152 y)), 46071#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 154) (<= 154 y)), 46072#(and (<= 156 y) (<= y 156) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 46073#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 158) (<= 158 y)), 46074#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 160 y) (<= y 160)), 46075#(and (<= y 162) (<= 162 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 46076#(and (<= 164 y) (<= y 164) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 46077#(and (<= y 166) (<= 166 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 46078#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 168) (<= 168 y)), 46079#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 170) (<= 170 y))] [2018-07-23 13:53:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8778 backedges. 0 proven. 8778 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,053 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:53:49,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:53:49,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=17823, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:53:49,054 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 135 states. [2018-07-23 13:53:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:51,012 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:53:51,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:53:51,012 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 134 [2018-07-23 13:53:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:51,013 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:53:51,013 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:53:51,013 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=267, Invalid=17823, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:53:51,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:53:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:53:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:53:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:53:51,184 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 134 [2018-07-23 13:53:51,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:51,184 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:53:51,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:53:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:53:51,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:53:51,185 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:51,185 INFO L357 BasicCegarLoop]: trace histogram [133, 1, 1] [2018-07-23 13:53:51,185 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:51,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1018035809, now seen corresponding path program 133 times [2018-07-23 13:53:51,186 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:52,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,902 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:52,902 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:53:52,902 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,903 INFO L185 omatonBuilderFactory]: Interpolants [46694#true, 46695#false, 46696#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 122)) (<= x (* 2 (div x 2))))), 46697#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 46698#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 46 y) (<= y 46)), 46699#(and (<= y 48) (<= 48 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 46700#(and (<= y 50) (<= 50 y) (or (<= (+ x 236) 0) (<= 0 (+ x 234)))), 46701#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 46702#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 54 y) (<= y 54)), 46703#(and (<= y 56) (or (<= 0 (+ x 228)) (<= (+ x 230) 0)) (<= 56 y)), 46704#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 46705#(and (<= 60 y) (<= y 60) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 46706#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 62) (<= 62 y)), 46707#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 46708#(and (<= 66 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 66)), 46709#(and (<= 68 y) (<= y 68) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 46710#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 70 y) (<= y 70)), 46711#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 72) (<= 72 y)), 46712#(and (<= y 74) (<= 74 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 46713#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 76) (<= 76 y)), 46714#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 46715#(and (<= y 80) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 80 y)), 46716#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 82) (<= 82 y)), 46717#(and (<= 84 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 84)), 46718#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 46719#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 88) (<= 88 y)), 46720#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 46721#(and (<= 92 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 92)), 46722#(and (<= 94 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 94)), 46723#(and (<= 96 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 96)), 46724#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 46725#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 100 y) (<= y 100)), 46726#(and (<= y 102) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 102 y)), 46727#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 104) (<= 104 y)), 46728#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 46729#(and (<= 108 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 108)), 46730#(and (<= 110 y) (<= y 110) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 46731#(and (<= y 112) (<= 112 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 46732#(and (<= 114 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 114)), 46733#(and (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 116 y) (<= y 116)), 46734#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 118) (<= 118 y)), 46735#(and (<= y 120) (<= 120 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 46736#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 46737#(and (<= y 124) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= 124 y)), 46738#(and (<= y 126) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 126 y)), 46739#(and (<= 128 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 128)), 46740#(and (<= y 130) (<= 130 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154)))), 46741#(and (<= y 132) (<= 132 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 46742#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 134 y) (<= y 134)), 46743#(and (<= 136 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 136)), 46744#(and (<= 138 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 138)), 46745#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 46746#(and (<= 142 y) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 142)), 46747#(and (<= y 144) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 144 y)), 46748#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 146) (<= 146 y)), 46749#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 46750#(and (<= y 150) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 150 y)), 46751#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 152) (<= 152 y)), 46752#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 154) (<= 154 y)), 46753#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 156 y) (<= y 156)), 46754#(and (<= y 158) (<= 158 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 46755#(and (<= 160 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 160)), 46756#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 162) (<= 162 y)), 46757#(and (<= 164 y) (<= y 164) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 46758#(and (<= y 166) (<= 166 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 46759#(and (<= y 168) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 168 y)), 46760#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 170) (<= 170 y)), 46761#(and (<= 172 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 172)), 46762#(and (<= 174 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 174)), 46763#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 176) (<= 176 y)), 46764#(and (<= y 178) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 178 y)), 46765#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 180 y) (<= y 180)), 46766#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 182 y) (<= y 182)), 46767#(and (<= y 184) (<= 184 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 46768#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 186 y) (<= y 186)), 46769#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 188) (<= 188 y)), 46770#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 190 y) (<= y 190)), 46771#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 192 y) (<= y 192)), 46772#(and (<= y 194) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 194 y)), 46773#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 196) (<= 196 y)), 46774#(and (<= 198 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 198)), 46775#(and (<= 200 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 200)), 46776#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 46777#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 204 y) (<= y 204)), 46778#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 46779#(and (<= 208 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= y 208)), 46780#(and (<= 210 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 210)), 46781#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 46782#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 214) (<= 214 y)), 46783#(and (<= y 216) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 216 y)), 46784#(and (<= y 218) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 218 y)), 46785#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 220 y) (<= y 220)), 46786#(and (<= y 222) (<= 222 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 46787#(and (<= 224 y) (<= y 224) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 46788#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 226 y) (<= y 226)), 46789#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 228) (<= 228 y)), 46790#(and (<= 230 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 230)), 46791#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 232 y) (<= y 232)), 46792#(and (<= 234 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 234)), 46793#(and (<= 236 y) (<= y 236) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 46794#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 238) (<= 238 y)), 46795#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 240) (<= 240 y)), 46796#(and (<= 242 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 242)), 46797#(and (<= y 244) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 244 y)), 46798#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 246 y) (<= y 246)), 46799#(and (<= y 248) (<= 248 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 46800#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 250) (<= 250 y)), 46801#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 252) (<= 252 y)), 46802#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 254 y) (<= y 254)), 46803#(and (<= y 256) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 256 y)), 46804#(and (<= y 258) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 258 y)), 46805#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 46806#(and (<= 262 y) (<= y 262) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 46807#(and (<= y 264) (<= 264 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 46808#(and (<= y 266) (<= 266 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 46809#(and (<= y 268) (<= 268 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 46810#(and (<= y 270) (<= 270 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 46811#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0))), 46812#(and (<= 274 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 274)), 46813#(and (<= y 276) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 276 y)), 46814#(and (<= 278 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 278)), 46815#(and (<= y 280) (<= 280 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 46816#(and (<= y 282) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 282 y)), 46817#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 284) (<= 284 y)), 46818#(and (<= 286 y) (<= y 286) (or (<= 2 x) (<= x 0))), 46819#(and (or (<= 4 x) (<= x 2)) (<= 288 y) (<= y 288)), 46820#(and (<= 290 y) (or (<= x 4) (<= 6 x)) (<= y 290)), 46821#(and (<= 292 y) (<= y 292) (or (<= 8 x) (<= x 6))), 46822#(and (or (<= x 8) (<= 10 x)) (<= 294 y) (<= y 294)), 46823#(and (or (<= 12 x) (<= x 10)) (<= y 296) (<= 296 y)), 46824#(and (<= y 298) (<= 298 y) (or (<= 14 x) (<= x 12))), 46825#(and (<= 300 y) (<= y 300) (or (<= x 14) (<= 16 x))), 46826#(and (<= 302 y) (or (<= 18 x) (<= x 16)) (<= y 302)), 46827#(and (or (<= 20 x) (<= x 18)) (<= 304 y) (<= y 304)), 46828#(and (<= y 306) (<= 306 y) (or (<= 22 x) (<= x 20))), 46829#(and (<= y 308) (or (<= 24 x) (<= x 22)) (<= 308 y))] [2018-07-23 13:53:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 8911 backedges. 0 proven. 8911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,903 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:53:52,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:53:52,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=18091, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:53:52,904 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 136 states. [2018-07-23 13:53:54,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:54,937 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-07-23 13:53:54,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:53:54,937 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 135 [2018-07-23 13:53:54,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:54,937 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:53:54,937 INFO L226 Difference]: Without dead ends: 137 [2018-07-23 13:53:54,938 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=269, Invalid=18091, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:53:54,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-23 13:53:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-07-23 13:53:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-07-23 13:53:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-07-23 13:53:55,100 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 135 [2018-07-23 13:53:55,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:55,100 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-07-23 13:53:55,100 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:53:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-07-23 13:53:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 13:53:55,100 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:55,101 INFO L357 BasicCegarLoop]: trace histogram [134, 1, 1] [2018-07-23 13:53:55,101 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:55,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1494338951, now seen corresponding path program 134 times [2018-07-23 13:53:55,101 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,846 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:56,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:53:56,846 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:56,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,847 INFO L185 omatonBuilderFactory]: Interpolants [47380#true, 47381#false, 47382#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 123)) (<= x (* 2 (div x 2))))), 47383#(and (<= 44 y) (<= y 44) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 47384#(and (<= 46 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0)) (<= y 46)), 47385#(and (<= y 48) (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 48 y)), 47386#(and (<= y 50) (<= 50 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 47387#(and (<= 52 y) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 52)), 47388#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 47389#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 56) (<= 56 y)), 47390#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 47391#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 47392#(and (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 62) (<= 62 y)), 47393#(and (<= y 64) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 64 y)), 47394#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 47395#(and (<= 68 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 68)), 47396#(and (<= 70 y) (<= y 70) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 47397#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 72) (<= 72 y)), 47398#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 74) (<= 74 y)), 47399#(and (<= y 76) (<= 76 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 47400#(and (<= y 78) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 78 y)), 47401#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 47402#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 82) (<= 82 y)), 47403#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 84 y) (<= y 84)), 47404#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 47405#(and (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 88) (<= 88 y)), 47406#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 90) (<= 90 y)), 47407#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 47408#(and (<= 94 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 94)), 47409#(and (<= 96 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 96)), 47410#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 98) (<= 98 y)), 47411#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 47412#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 102) (<= 102 y)), 47413#(and (<= y 104) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 104 y)), 47414#(and (<= 106 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 106)), 47415#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 47416#(and (<= 110 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 110)), 47417#(and (<= y 112) (<= 112 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 47418#(and (<= 114 y) (<= y 114) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 47419#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 116 y) (<= y 116)), 47420#(and (<= y 118) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 118 y)), 47421#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 120) (<= 120 y)), 47422#(and (<= y 122) (<= 122 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 47423#(and (<= y 124) (or (<= 0 (+ x 162)) (<= (+ x 164) 0)) (<= 124 y)), 47424#(and (<= y 126) (<= 126 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 47425#(and (<= 128 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 128)), 47426#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 47427#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 132) (<= 132 y)), 47428#(and (<= 134 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 134)), 47429#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 136 y) (<= y 136)), 47430#(and (<= 138 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 138)), 47431#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 47432#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 47433#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 144) (<= 144 y)), 47434#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 146) (<= 146 y)), 47435#(and (<= 148 y) (<= y 148) (or (<= (+ x 140) 0) (<= 0 (+ x 138)))), 47436#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 150) (<= 150 y)), 47437#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 47438#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 154) (<= 154 y)), 47439#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 156 y) (<= y 156)), 47440#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 158) (<= 158 y)), 47441#(and (<= 160 y) (<= y 160) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 47442#(and (<= y 162) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 162 y)), 47443#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 164 y) (<= y 164)), 47444#(and (<= y 166) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 166 y)), 47445#(and (<= y 168) (<= 168 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 47446#(and (<= y 170) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 170 y)), 47447#(and (<= 172 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 172)), 47448#(and (<= 174 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 174)), 47449#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 176) (<= 176 y)), 47450#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 178) (<= 178 y)), 47451#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 180 y) (<= y 180)), 47452#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 182 y) (<= y 182)), 47453#(and (<= y 184) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 184 y)), 47454#(and (<= 186 y) (<= y 186) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 47455#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 188) (<= 188 y)), 47456#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 190 y) (<= y 190)), 47457#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 192 y) (<= y 192)), 47458#(and (<= y 194) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 194 y)), 47459#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 196) (<= 196 y)), 47460#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 198 y) (<= y 198)), 47461#(and (<= 200 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 200)), 47462#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 47463#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 47464#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 206) (<= 206 y)), 47465#(and (<= 208 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= y 208)), 47466#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 47467#(and (<= 212 y) (<= y 212) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 47468#(and (<= y 214) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 214 y)), 47469#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 216) (<= 216 y)), 47470#(and (<= y 218) (<= 218 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 47471#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 220 y) (<= y 220)), 47472#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0))), 47473#(and (<= 224 y) (<= y 224) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 47474#(and (<= 226 y) (<= y 226) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 47475#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 228) (<= 228 y)), 47476#(and (<= 230 y) (<= y 230) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 47477#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 232 y) (<= y 232)), 47478#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 234 y) (<= y 234)), 47479#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 236 y) (<= y 236)), 47480#(and (<= y 238) (<= 238 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 47481#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 240) (<= 240 y)), 47482#(and (<= 242 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 242)), 47483#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 244) (<= 244 y)), 47484#(and (<= 246 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 246)), 47485#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 248) (<= 248 y)), 47486#(and (<= y 250) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 250 y)), 47487#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 252) (<= 252 y)), 47488#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 254 y) (<= y 254)), 47489#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 256) (<= 256 y)), 47490#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 258) (<= 258 y)), 47491#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 47492#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 47493#(and (<= y 264) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 264 y)), 47494#(and (<= y 266) (<= 266 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 47495#(and (<= y 268) (<= 268 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 47496#(and (<= y 270) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 270 y)), 47497#(and (<= y 272) (<= 272 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 47498#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 274 y) (<= y 274)), 47499#(and (<= y 276) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 276 y)), 47500#(and (<= 278 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 278)), 47501#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 47502#(and (<= y 282) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 282 y)), 47503#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 284) (<= 284 y)), 47504#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 286 y) (<= y 286)), 47505#(and (<= 288 y) (<= y 288) (or (<= 2 x) (<= x 0))), 47506#(and (<= 290 y) (or (<= 4 x) (<= x 2)) (<= y 290)), 47507#(and (or (<= x 4) (<= 6 x)) (<= 292 y) (<= y 292)), 47508#(and (<= 294 y) (<= y 294) (or (<= 8 x) (<= x 6))), 47509#(and (<= y 296) (or (<= x 8) (<= 10 x)) (<= 296 y)), 47510#(and (or (<= 12 x) (<= x 10)) (<= y 298) (<= 298 y)), 47511#(and (<= 300 y) (<= y 300) (or (<= 14 x) (<= x 12))), 47512#(and (<= 302 y) (<= y 302) (or (<= x 14) (<= 16 x))), 47513#(and (or (<= 18 x) (<= x 16)) (<= 304 y) (<= y 304)), 47514#(and (<= y 306) (<= 306 y) (or (<= 20 x) (<= x 18))), 47515#(and (<= y 308) (or (<= 22 x) (<= x 20)) (<= 308 y)), 47516#(and (or (<= 24 x) (<= x 22)) (<= 310 y) (<= y 310))] [2018-07-23 13:53:56,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9045 backedges. 0 proven. 9045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,848 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:53:56,848 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:53:56,849 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=18361, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:53:56,849 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 137 states. [2018-07-23 13:53:58,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:58,898 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:53:58,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:53:58,898 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 136 [2018-07-23 13:53:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:58,899 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:53:58,899 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:53:58,900 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=271, Invalid=18361, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:53:58,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:53:59,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:53:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:53:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:53:59,059 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 136 [2018-07-23 13:53:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:59,059 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:53:59,059 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:53:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:53:59,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:53:59,059 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:59,059 INFO L357 BasicCegarLoop]: trace histogram [135, 1, 1] [2018-07-23 13:53:59,060 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:59,060 INFO L82 PathProgramCache]: Analyzing trace with hash -920132831, now seen corresponding path program 135 times [2018-07-23 13:53:59,060 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:00,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:00,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:54:00,852 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:00,853 INFO L185 omatonBuilderFactory]: Interpolants [48128#(and (<= y 152) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 152 y)), 48129#(and (<= y 154) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 154 y)), 48130#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 156 y) (<= y 156)), 48131#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 158) (<= 158 y)), 48132#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 160 y) (<= y 160)), 48133#(and (<= y 162) (<= 162 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 48134#(and (<= 164 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 164)), 48135#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 166) (<= 166 y)), 48136#(and (<= y 168) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 168 y)), 48137#(and (<= y 170) (<= 170 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 48138#(and (<= 172 y) (<= y 172) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 48139#(and (<= 174 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 174)), 48140#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 176) (<= 176 y)), 48141#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 178) (<= 178 y)), 48142#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 180 y) (<= y 180)), 48143#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 182 y) (<= y 182)), 48144#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 184) (<= 184 y)), 48145#(and (<= 186 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 186)), 48146#(and (<= y 188) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 188 y)), 48147#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 190 y) (<= y 190)), 48148#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 192 y) (<= y 192)), 48149#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 194) (<= 194 y)), 48150#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 196) (<= 196 y)), 48151#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 198 y) (<= y 198)), 48152#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 200 y) (<= y 200)), 48153#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 48154#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 48155#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 48156#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 208 y) (<= y 208)), 48157#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 48158#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 48159#(and (<= y 214) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 214 y)), 48160#(and (<= y 216) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 216 y)), 48161#(and (<= y 218) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 218 y)), 48162#(and (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 220 y) (<= y 220)), 48163#(and (<= y 222) (<= 222 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66)))), 48164#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 224 y) (<= y 224)), 48165#(and (<= 226 y) (<= y 226) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 48166#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 228) (<= 228 y)), 48167#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 230 y) (<= y 230)), 48168#(and (<= 232 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 232)), 48169#(and (<= 234 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 234)), 48170#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 236 y) (<= y 236)), 48171#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 238) (<= 238 y)), 48172#(and (<= y 240) (<= 240 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 48173#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 242 y) (<= y 242)), 48174#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 244) (<= 244 y)), 48175#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 246 y) (<= y 246)), 48176#(and (<= y 248) (<= 248 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 48177#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 250) (<= 250 y)), 48178#(and (<= y 252) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 252 y)), 48179#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 254 y) (<= y 254)), 48180#(and (<= y 256) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 256 y)), 48181#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 258) (<= 258 y)), 48182#(and (<= y 260) (<= 260 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 48183#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 48184#(and (<= y 264) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 264 y)), 48185#(and (<= y 266) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 266 y)), 48186#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 48187#(and (<= y 270) (<= 270 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 48188#(and (<= y 272) (<= 272 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 48189#(and (<= 274 y) (<= y 274) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 48190#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 276) (<= 276 y)), 48191#(and (<= 278 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 278)), 48192#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 48193#(and (<= y 282) (<= 282 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 48194#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 284) (<= 284 y)), 48195#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 286 y) (<= y 286)), 48196#(and (<= 288 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 288)), 48197#(and (<= 290 y) (<= y 290) (or (<= 2 x) (<= x 0))), 48198#(and (or (<= 4 x) (<= x 2)) (<= 292 y) (<= y 292)), 48199#(and (or (<= x 4) (<= 6 x)) (<= 294 y) (<= y 294)), 48200#(and (<= y 296) (<= 296 y) (or (<= 8 x) (<= x 6))), 48201#(and (or (<= x 8) (<= 10 x)) (<= y 298) (<= 298 y)), 48202#(and (or (<= 12 x) (<= x 10)) (<= 300 y) (<= y 300)), 48203#(and (<= 302 y) (<= y 302) (or (<= 14 x) (<= x 12))), 48204#(and (<= 304 y) (or (<= x 14) (<= 16 x)) (<= y 304)), 48205#(and (<= y 306) (<= 306 y) (or (<= 18 x) (<= x 16))), 48206#(and (<= y 308) (or (<= 20 x) (<= x 18)) (<= 308 y)), 48207#(and (or (<= 22 x) (<= x 20)) (<= 310 y) (<= y 310)), 48208#(and (or (<= 24 x) (<= x 22)) (<= y 312) (<= 312 y)), 48071#true, 48072#false, 48073#(and (<= y 42) (or (< 0 (+ (div x 2) 124)) (<= x (* 2 (div x 2)))) (<= 42 y)), 48074#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 48075#(and (<= 46 y) (or (<= (+ x 244) 0) (<= 0 (+ x 242))) (<= y 46)), 48076#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 48077#(and (<= y 50) (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 50 y)), 48078#(and (<= 52 y) (<= y 52) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 48079#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 54 y) (<= y 54)), 48080#(and (<= y 56) (or (<= 0 (+ x 232)) (<= (+ x 234) 0)) (<= 56 y)), 48081#(and (<= 58 y) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 58)), 48082#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 48083#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 48084#(and (<= y 64) (<= 64 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 48085#(and (<= 66 y) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 66)), 48086#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 48087#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 70 y) (<= y 70)), 48088#(and (<= y 72) (<= 72 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 48089#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 74) (<= 74 y)), 48090#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 76) (<= 76 y)), 48091#(and (<= y 78) (<= 78 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 48092#(and (<= y 80) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 80 y)), 48093#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 48094#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 84 y) (<= y 84)), 48095#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 86 y) (<= y 86)), 48096#(and (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 88) (<= 88 y)), 48097#(and (<= y 90) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 90 y)), 48098#(and (<= 92 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 92)), 48099#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 48100#(and (<= 96 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 96)), 48101#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 98) (<= 98 y)), 48102#(and (<= 100 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 100)), 48103#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 48104#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 104) (<= 104 y)), 48105#(and (<= 106 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 106)), 48106#(and (<= 108 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 108)), 48107#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 48108#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 48109#(and (<= 114 y) (<= y 114) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 48110#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 116 y) (<= y 116)), 48111#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 118) (<= 118 y)), 48112#(and (<= y 120) (<= 120 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 48113#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 122) (<= 122 y)), 48114#(and (<= y 124) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= 124 y)), 48115#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 48116#(and (<= 128 y) (<= y 128) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 48117#(and (<= y 130) (<= 130 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 48118#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 132) (<= 132 y)), 48119#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 134 y) (<= y 134)), 48120#(and (<= 136 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 136)), 48121#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 138 y) (<= y 138)), 48122#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 140 y) (<= y 140)), 48123#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 48124#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 48125#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 146) (<= 146 y)), 48126#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 148 y) (<= y 148)), 48127#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 150) (<= 150 y))] [2018-07-23 13:54:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:00,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:54:00,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:54:00,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=18633, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:54:00,855 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 138 states. [2018-07-23 13:54:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:02,947 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-07-23 13:54:02,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:54:02,947 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 137 [2018-07-23 13:54:02,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:02,948 INFO L225 Difference]: With dead ends: 140 [2018-07-23 13:54:02,948 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:54:02,949 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=273, Invalid=18633, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:54:02,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:54:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:54:03,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:54:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-07-23 13:54:03,111 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 137 [2018-07-23 13:54:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:03,111 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-07-23 13:54:03,111 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:54:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-07-23 13:54:03,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:54:03,112 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:03,112 INFO L357 BasicCegarLoop]: trace histogram [136, 1, 1] [2018-07-23 13:54:03,112 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:03,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1540653255, now seen corresponding path program 136 times [2018-07-23 13:54:03,112 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:04,949 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:04,949 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:54:04,949 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:04,950 INFO L185 omatonBuilderFactory]: Interpolants [48896#(and (or (<= x 4) (<= 6 x)) (<= y 296) (<= 296 y)), 48897#(and (<= y 298) (or (<= 8 x) (<= x 6)) (<= 298 y)), 48898#(and (<= 300 y) (or (<= x 8) (<= 10 x)) (<= y 300)), 48899#(and (or (<= 12 x) (<= x 10)) (<= 302 y) (<= y 302)), 48900#(and (<= 304 y) (<= y 304) (or (<= 14 x) (<= x 12))), 48901#(and (<= y 306) (<= 306 y) (or (<= x 14) (<= 16 x))), 48902#(and (<= y 308) (or (<= 18 x) (<= x 16)) (<= 308 y)), 48903#(and (or (<= 20 x) (<= x 18)) (<= 310 y) (<= y 310)), 48904#(and (or (<= 22 x) (<= x 20)) (<= y 312) (<= 312 y)), 48905#(and (or (<= 24 x) (<= x 22)) (<= y 314) (<= 314 y)), 48767#true, 48768#false, 48769#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 125)) (<= x (* 2 (div x 2))))), 48770#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 246)) (<= (+ x 248) 0))), 48771#(and (<= 46 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0)) (<= y 46)), 48772#(and (<= y 48) (<= 48 y) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 48773#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 48774#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 52 y) (<= y 52)), 48775#(and (<= 54 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= y 54)), 48776#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 56) (<= 56 y)), 48777#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 48778#(and (<= 60 y) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 60)), 48779#(and (<= y 62) (or (<= 0 (+ x 228)) (<= (+ x 230) 0)) (<= 62 y)), 48780#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 48781#(and (<= 66 y) (<= y 66) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 48782#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 68 y) (<= y 68)), 48783#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 48784#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 72) (<= 72 y)), 48785#(and (<= y 74) (<= 74 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 48786#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 76) (<= 76 y)), 48787#(and (<= y 78) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 78 y)), 48788#(and (<= y 80) (<= 80 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 48789#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 82) (<= 82 y)), 48790#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 48791#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 86 y) (<= y 86)), 48792#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 88) (<= 88 y)), 48793#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 48794#(and (<= 92 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 92)), 48795#(and (<= 94 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 94)), 48796#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 48797#(and (<= y 98) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 98 y)), 48798#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 100 y) (<= y 100)), 48799#(and (<= y 102) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 102 y)), 48800#(and (<= y 104) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 104 y)), 48801#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 106 y) (<= y 106)), 48802#(and (<= 108 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 108)), 48803#(and (<= 110 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 110)), 48804#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 48805#(and (<= 114 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 114)), 48806#(and (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 116 y) (<= y 116)), 48807#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 118) (<= 118 y)), 48808#(and (<= y 120) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 120 y)), 48809#(and (<= y 122) (<= 122 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 48810#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 124) (<= 124 y)), 48811#(and (<= y 126) (<= 126 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 48812#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 48813#(and (<= y 130) (<= 130 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 48814#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 132) (<= 132 y)), 48815#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 134 y) (<= y 134)), 48816#(and (<= 136 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 136)), 48817#(and (<= 138 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 138)), 48818#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 140 y) (<= y 140)), 48819#(and (<= 142 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 142)), 48820#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 48821#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 48822#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 148 y) (<= y 148)), 48823#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 150) (<= 150 y)), 48824#(and (<= y 152) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 152 y)), 48825#(and (<= y 154) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 154 y)), 48826#(and (<= 156 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 156)), 48827#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 158) (<= 158 y)), 48828#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 160 y) (<= y 160)), 48829#(and (<= y 162) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 162 y)), 48830#(and (<= 164 y) (<= y 164) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 48831#(and (<= y 166) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 166 y)), 48832#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 168) (<= 168 y)), 48833#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 170) (<= 170 y)), 48834#(and (<= 172 y) (<= y 172) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 48835#(and (<= 174 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 174)), 48836#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 176) (<= 176 y)), 48837#(and (<= y 178) (<= 178 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 48838#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 180 y) (<= y 180)), 48839#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 182 y) (<= y 182)), 48840#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 184) (<= 184 y)), 48841#(and (<= 186 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 186)), 48842#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 188) (<= 188 y)), 48843#(and (<= 190 y) (<= y 190) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 48844#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 192 y) (<= y 192)), 48845#(and (<= y 194) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 194 y)), 48846#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 196) (<= 196 y)), 48847#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 198 y) (<= y 198)), 48848#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 200 y) (<= y 200)), 48849#(and (<= y 202) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 202 y)), 48850#(and (<= 204 y) (<= y 204) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 48851#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 48852#(and (<= 208 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0)) (<= y 208)), 48853#(and (<= 210 y) (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 210)), 48854#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 48855#(and (<= y 214) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 214 y)), 48856#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 216) (<= 216 y)), 48857#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 48858#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 220 y) (<= y 220)), 48859#(and (<= y 222) (<= 222 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 48860#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 224 y) (<= y 224)), 48861#(and (<= 226 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 226)), 48862#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 228) (<= 228 y)), 48863#(and (<= 230 y) (<= y 230) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 48864#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 232 y) (<= y 232)), 48865#(and (<= 234 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 234)), 48866#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 236 y) (<= y 236)), 48867#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 238) (<= 238 y)), 48868#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 240) (<= 240 y)), 48869#(and (<= 242 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 242)), 48870#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 244) (<= 244 y)), 48871#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 246 y) (<= y 246)), 48872#(and (<= y 248) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 248 y)), 48873#(and (<= y 250) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 250 y)), 48874#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 252) (<= 252 y)), 48875#(and (<= 254 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 254)), 48876#(and (<= y 256) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 256 y)), 48877#(and (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 258) (<= 258 y)), 48878#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 260) (<= 260 y)), 48879#(and (<= 262 y) (<= y 262) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 48880#(and (<= y 264) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 264 y)), 48881#(and (<= y 266) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 266 y)), 48882#(and (<= y 268) (<= 268 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 48883#(and (<= y 270) (<= 270 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 48884#(and (<= y 272) (<= 272 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 48885#(and (<= 274 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 274)), 48886#(and (<= y 276) (<= 276 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 48887#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 278 y) (<= y 278)), 48888#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0))), 48889#(and (<= y 282) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 282 y)), 48890#(and (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 284) (<= 284 y)), 48891#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 286 y) (<= y 286)), 48892#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 288 y) (<= y 288)), 48893#(and (<= 290 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 290)), 48894#(and (<= 292 y) (<= y 292) (or (<= 2 x) (<= x 0))), 48895#(and (or (<= 4 x) (<= x 2)) (<= 294 y) (<= y 294))] [2018-07-23 13:54:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9316 backedges. 0 proven. 9316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:04,950 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:54:04,951 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:54:04,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=18907, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:54:04,952 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 139 states. [2018-07-23 13:54:07,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:07,041 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:54:07,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:54:07,041 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 138 [2018-07-23 13:54:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:07,042 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:54:07,042 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:54:07,043 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=18907, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:54:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:54:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:54:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:54:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:54:07,208 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 138 [2018-07-23 13:54:07,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:07,208 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:54:07,209 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:54:07,209 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:54:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:54:07,209 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:07,209 INFO L357 BasicCegarLoop]: trace histogram [137, 1, 1] [2018-07-23 13:54:07,209 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:07,209 INFO L82 PathProgramCache]: Analyzing trace with hash 515610593, now seen corresponding path program 137 times [2018-07-23 13:54:07,209 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:09,059 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,059 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:09,059 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:54:09,059 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,060 INFO L185 omatonBuilderFactory]: Interpolants [49468#true, 49469#false, 49470#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 126)) (<= x (* 2 (div x 2))))), 49471#(and (<= 44 y) (<= y 44) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 49472#(and (<= 46 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 46)), 49473#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 49474#(and (<= y 50) (<= 50 y) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 49475#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 49476#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 54 y) (<= y 54)), 49477#(and (<= y 56) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= 56 y)), 49478#(and (<= 58 y) (<= y 58) (or (<= (+ x 236) 0) (<= 0 (+ x 234)))), 49479#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 49480#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 62) (<= 62 y)), 49481#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 49482#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 49483#(and (<= 68 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 68)), 49484#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 70 y) (<= y 70)), 49485#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 49486#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 74) (<= 74 y)), 49487#(and (<= y 76) (<= 76 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 49488#(and (<= y 78) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 78 y)), 49489#(and (<= y 80) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 80 y)), 49490#(and (<= y 82) (<= 82 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 49491#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 84 y) (<= y 84)), 49492#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 49493#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 88) (<= 88 y)), 49494#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 90) (<= 90 y)), 49495#(and (<= 92 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 92)), 49496#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 49497#(and (<= 96 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 96)), 49498#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 49499#(and (<= 100 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 100)), 49500#(and (<= y 102) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 102 y)), 49501#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 104) (<= 104 y)), 49502#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 49503#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 108 y) (<= y 108)), 49504#(and (<= 110 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 110)), 49505#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0))), 49506#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 49507#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 116 y) (<= y 116)), 49508#(and (<= y 118) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 118 y)), 49509#(and (<= y 120) (<= 120 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 49510#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 49511#(and (<= y 124) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= 124 y)), 49512#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 126) (<= 126 y)), 49513#(and (<= 128 y) (<= y 128) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 49514#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 49515#(and (<= y 132) (<= 132 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 49516#(and (<= 134 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 134)), 49517#(and (<= 136 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 136)), 49518#(and (<= 138 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 138)), 49519#(and (<= 140 y) (<= y 140) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 49520#(and (<= 142 y) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 142)), 49521#(and (<= y 144) (<= 144 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148)))), 49522#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 49523#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 49524#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 150) (<= 150 y)), 49525#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 152) (<= 152 y)), 49526#(and (<= y 154) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 154 y)), 49527#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 156 y) (<= y 156)), 49528#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 158) (<= 158 y)), 49529#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 160 y) (<= y 160)), 49530#(and (<= y 162) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 162 y)), 49531#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 164 y) (<= y 164)), 49532#(and (<= y 166) (<= 166 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 49533#(and (<= y 168) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 168 y)), 49534#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 170) (<= 170 y)), 49535#(and (<= 172 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 172)), 49536#(and (<= 174 y) (<= y 174) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 49537#(and (<= y 176) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 176 y)), 49538#(and (<= y 178) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 178 y)), 49539#(and (<= 180 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 180)), 49540#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 182 y) (<= y 182)), 49541#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 184) (<= 184 y)), 49542#(and (<= 186 y) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 186)), 49543#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 188) (<= 188 y)), 49544#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 190 y) (<= y 190)), 49545#(and (<= 192 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 192)), 49546#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 194) (<= 194 y)), 49547#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 196) (<= 196 y)), 49548#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 198 y) (<= y 198)), 49549#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 200 y) (<= y 200)), 49550#(and (<= y 202) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 202 y)), 49551#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 204 y) (<= y 204)), 49552#(and (<= y 206) (<= 206 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 49553#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 208 y) (<= y 208)), 49554#(and (<= 210 y) (<= y 210) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 49555#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 212 y) (<= y 212)), 49556#(and (<= y 214) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 214 y)), 49557#(and (<= y 216) (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 216 y)), 49558#(and (<= y 218) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 218 y)), 49559#(and (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= 220 y) (<= y 220)), 49560#(and (<= y 222) (<= 222 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70)))), 49561#(and (<= 224 y) (<= y 224) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 49562#(and (<= 226 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 226)), 49563#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 228) (<= 228 y)), 49564#(and (<= 230 y) (<= y 230) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 49565#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 232 y) (<= y 232)), 49566#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 234 y) (<= y 234)), 49567#(and (<= 236 y) (<= y 236) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 49568#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 238) (<= 238 y)), 49569#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 240) (<= 240 y)), 49570#(and (<= 242 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 242)), 49571#(and (<= y 244) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 244 y)), 49572#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 246 y) (<= y 246)), 49573#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 248) (<= 248 y)), 49574#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 250) (<= 250 y)), 49575#(and (<= y 252) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 252 y)), 49576#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 254 y) (<= y 254)), 49577#(and (<= y 256) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 256 y)), 49578#(and (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 258) (<= 258 y)), 49579#(and (<= y 260) (<= 260 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 49580#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 262 y) (<= y 262)), 49581#(and (<= y 264) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 264 y)), 49582#(and (<= y 266) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 266 y)), 49583#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 49584#(and (<= y 270) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 270 y)), 49585#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 49586#(and (<= 274 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 274)), 49587#(and (<= y 276) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 276 y)), 49588#(and (<= 278 y) (<= y 278) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 49589#(and (<= y 280) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 280 y)), 49590#(and (<= y 282) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 282 y)), 49591#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 284) (<= 284 y)), 49592#(and (<= 286 y) (<= y 286) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 49593#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 288 y) (<= y 288)), 49594#(and (<= 290 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 290)), 49595#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 292 y) (<= y 292)), 49596#(and (<= 294 y) (<= y 294) (or (<= 2 x) (<= x 0))), 49597#(and (<= y 296) (or (<= 4 x) (<= x 2)) (<= 296 y)), 49598#(and (or (<= x 4) (<= 6 x)) (<= y 298) (<= 298 y)), 49599#(and (<= 300 y) (<= y 300) (or (<= 8 x) (<= x 6))), 49600#(and (<= 302 y) (<= y 302) (or (<= x 8) (<= 10 x))), 49601#(and (or (<= 12 x) (<= x 10)) (<= 304 y) (<= y 304)), 49602#(and (<= y 306) (<= 306 y) (or (<= 14 x) (<= x 12))), 49603#(and (<= y 308) (or (<= x 14) (<= 16 x)) (<= 308 y)), 49604#(and (or (<= 18 x) (<= x 16)) (<= 310 y) (<= y 310)), 49605#(and (or (<= 20 x) (<= x 18)) (<= y 312) (<= 312 y)), 49606#(and (or (<= 22 x) (<= x 20)) (<= y 314) (<= 314 y)), 49607#(and (<= y 316) (or (<= 24 x) (<= x 22)) (<= 316 y))] [2018-07-23 13:54:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:09,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:54:09,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:54:09,062 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=19183, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:54:09,062 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 140 states. [2018-07-23 13:54:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:11,194 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2018-07-23 13:54:11,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:54:11,195 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 139 [2018-07-23 13:54:11,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:11,195 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:54:11,195 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 13:54:11,196 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=277, Invalid=19183, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:54:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 13:54:11,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-07-23 13:54:11,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:54:11,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-07-23 13:54:11,364 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2018-07-23 13:54:11,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:11,364 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-07-23 13:54:11,364 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:54:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-07-23 13:54:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:54:11,365 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:11,365 INFO L357 BasicCegarLoop]: trace histogram [138, 1, 1] [2018-07-23 13:54:11,365 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:11,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1195940857, now seen corresponding path program 138 times [2018-07-23 13:54:11,365 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:13,355 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:13,355 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:54:13,355 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:13,356 INFO L185 omatonBuilderFactory]: Interpolants [50176#(and (<= y 42) (or (< 0 (+ (div x 2) 127)) (<= x (* 2 (div x 2)))) (<= 42 y)), 50177#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 50178#(and (<= 46 y) (or (<= (+ x 250) 0) (<= 0 (+ x 248))) (<= y 46)), 50179#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0))), 50180#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 50181#(and (<= 52 y) (<= y 52) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 50182#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 50183#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 56) (<= 56 y)), 50184#(and (<= 58 y) (<= y 58) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 50185#(and (<= 60 y) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 60)), 50186#(and (<= y 62) (<= 62 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 50187#(and (<= y 64) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 64 y)), 50188#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 50189#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 50190#(and (<= 70 y) (<= y 70) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 50191#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 72) (<= 72 y)), 50192#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 50193#(and (<= y 76) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 76 y)), 50194#(and (<= y 78) (<= 78 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 50195#(and (<= y 80) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 80 y)), 50196#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 82) (<= 82 y)), 50197#(and (<= 84 y) (<= y 84) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 50198#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 86 y) (<= y 86)), 50199#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 50200#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 90) (<= 90 y)), 50201#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 92 y) (<= y 92)), 50202#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 50203#(and (<= 96 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 96)), 50204#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 98) (<= 98 y)), 50205#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 50206#(and (<= y 102) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 102 y)), 50207#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 104) (<= 104 y)), 50208#(and (<= 106 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 106)), 50209#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 50210#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 110 y) (<= y 110)), 50211#(and (<= y 112) (<= 112 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 50212#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 114 y) (<= y 114)), 50213#(and (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 116 y) (<= y 116)), 50214#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 118) (<= 118 y)), 50215#(and (<= y 120) (<= 120 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 50216#(and (<= y 122) (<= 122 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 50217#(and (<= y 124) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 124 y)), 50218#(and (<= y 126) (<= 126 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 50219#(and (<= 128 y) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 128)), 50220#(and (<= y 130) (<= 130 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 50221#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 50222#(and (<= 134 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= y 134)), 50223#(and (<= 136 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 136)), 50224#(and (<= 138 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 138)), 50225#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 140 y) (<= y 140)), 50226#(and (<= 142 y) (<= y 142) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 50227#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 144) (<= 144 y)), 50228#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 146) (<= 146 y)), 50229#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 50230#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 50231#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 152) (<= 152 y)), 50232#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 154) (<= 154 y)), 50233#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 156 y) (<= y 156)), 50234#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 158) (<= 158 y)), 50235#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 50236#(and (<= y 162) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 162 y)), 50237#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 164 y) (<= y 164)), 50238#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 166) (<= 166 y)), 50239#(and (<= y 168) (<= 168 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 50240#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 170) (<= 170 y)), 50241#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 172 y) (<= y 172)), 50242#(and (<= 174 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 174)), 50243#(and (<= y 176) (<= 176 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 50244#(and (<= y 178) (<= 178 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 50245#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 180 y) (<= y 180)), 50246#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 182 y) (<= y 182)), 50247#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 184) (<= 184 y)), 50248#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 186 y) (<= y 186)), 50249#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 188) (<= 188 y)), 50250#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 190 y) (<= y 190)), 50251#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 192 y) (<= y 192)), 50252#(and (<= y 194) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 194 y)), 50253#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 196) (<= 196 y)), 50254#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 198 y) (<= y 198)), 50255#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 200 y) (<= y 200)), 50256#(and (<= y 202) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 202 y)), 50257#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 204 y) (<= y 204)), 50258#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 206) (<= 206 y)), 50259#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 208 y) (<= y 208)), 50260#(and (<= 210 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 210)), 50261#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 50262#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 214) (<= 214 y)), 50263#(and (<= y 216) (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 216 y)), 50264#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 50265#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 220 y) (<= y 220)), 50266#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 50267#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 224 y) (<= y 224)), 50268#(and (<= 226 y) (<= y 226) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 50269#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 228) (<= 228 y)), 50270#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 230 y) (<= y 230)), 50271#(and (<= 232 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 232)), 50272#(and (<= 234 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 234)), 50273#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 236 y) (<= y 236)), 50274#(and (<= y 238) (<= 238 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 50275#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 240) (<= 240 y)), 50276#(and (<= 242 y) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 242)), 50277#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 244) (<= 244 y)), 50278#(and (<= 246 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 246)), 50279#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 248) (<= 248 y)), 50280#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 250) (<= 250 y)), 50281#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 252) (<= 252 y)), 50282#(and (<= 254 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 254)), 50283#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 256) (<= 256 y)), 50284#(and (<= y 258) (<= 258 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 50285#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 50286#(and (<= 262 y) (<= y 262) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 50287#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 264) (<= 264 y)), 50288#(and (<= y 266) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 266 y)), 50289#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 50290#(and (<= y 270) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 270 y)), 50291#(and (<= y 272) (<= 272 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 50292#(and (<= 274 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 274)), 50293#(and (<= y 276) (<= 276 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 50294#(and (<= 278 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 278)), 50295#(and (<= y 280) (<= 280 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 50296#(and (<= y 282) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 282 y)), 50297#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 284) (<= 284 y)), 50298#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 286 y) (<= y 286)), 50299#(and (<= 288 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= y 288)), 50300#(and (<= 290 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 290)), 50301#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 292 y) (<= y 292)), 50302#(and (<= 294 y) (or (<= (+ x 2) 0) (<= 0 x)) (<= y 294)), 50303#(and (<= y 296) (<= 296 y) (or (<= 2 x) (<= x 0))), 50304#(and (or (<= 4 x) (<= x 2)) (<= y 298) (<= 298 y)), 50305#(and (or (<= x 4) (<= 6 x)) (<= 300 y) (<= y 300)), 50306#(and (<= 302 y) (<= y 302) (or (<= 8 x) (<= x 6))), 50307#(and (or (<= x 8) (<= 10 x)) (<= 304 y) (<= y 304)), 50308#(and (or (<= 12 x) (<= x 10)) (<= y 306) (<= 306 y)), 50309#(and (<= y 308) (<= 308 y) (or (<= 14 x) (<= x 12))), 50310#(and (<= 310 y) (or (<= x 14) (<= 16 x)) (<= y 310)), 50311#(and (or (<= 18 x) (<= x 16)) (<= y 312) (<= 312 y)), 50312#(and (<= y 314) (<= 314 y) (or (<= 20 x) (<= x 18))), 50313#(and (<= y 316) (or (<= 22 x) (<= x 20)) (<= 316 y)), 50314#(and (or (<= 24 x) (<= x 22)) (<= 318 y) (<= y 318)), 50174#true, 50175#false] [2018-07-23 13:54:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:13,357 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:54:13,357 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:54:13,358 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=19461, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:54:13,358 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 141 states. [2018-07-23 13:54:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:15,542 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:54:15,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:54:15,542 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 140 [2018-07-23 13:54:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:15,543 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:54:15,543 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:54:15,544 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=19461, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:54:15,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:54:15,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:54:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:54:15,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:54:15,720 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 140 [2018-07-23 13:54:15,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:15,720 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:54:15,720 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:54:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:54:15,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:54:15,720 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:15,720 INFO L357 BasicCegarLoop]: trace histogram [139, 1, 1] [2018-07-23 13:54:15,721 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:15,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1580539041, now seen corresponding path program 139 times [2018-07-23 13:54:15,721 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,677 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:17,677 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:54:17,677 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,678 INFO L185 omatonBuilderFactory]: Interpolants [50944#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 156 y) (<= y 156)), 50945#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 158) (<= 158 y)), 50946#(and (<= 160 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 160)), 50947#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 50948#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 164 y) (<= y 164)), 50949#(and (<= y 166) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 166 y)), 50950#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 168) (<= 168 y)), 50951#(and (<= y 170) (<= 170 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 50952#(and (<= 172 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 172)), 50953#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 174 y) (<= y 174)), 50954#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 176) (<= 176 y)), 50955#(and (<= y 178) (<= 178 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 50956#(and (<= 180 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 180)), 50957#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 182 y) (<= y 182)), 50958#(and (<= y 184) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 184 y)), 50959#(and (<= 186 y) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 186)), 50960#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 188) (<= 188 y)), 50961#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 190 y) (<= y 190)), 50962#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 192 y) (<= y 192)), 50963#(and (<= y 194) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 194 y)), 50964#(and (<= y 196) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 196 y)), 50965#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 198 y) (<= y 198)), 50966#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 200 y) (<= y 200)), 50967#(and (<= y 202) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 202 y)), 50968#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 204 y) (<= y 204)), 50969#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 206) (<= 206 y)), 50970#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 208 y) (<= y 208)), 50971#(and (<= 210 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 210)), 50972#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 50973#(and (<= y 214) (<= 214 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 50974#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 216) (<= 216 y)), 50975#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 50976#(and (or (<= 0 (+ x 76)) (<= (+ x 78) 0)) (<= 220 y) (<= y 220)), 50977#(and (<= y 222) (<= 222 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 50978#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 50979#(and (<= 226 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 226)), 50980#(and (<= y 228) (<= 228 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 50981#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 230 y) (<= y 230)), 50982#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 232 y) (<= y 232)), 50983#(and (<= 234 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 234)), 50984#(and (<= 236 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 236)), 50985#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 238) (<= 238 y)), 50986#(and (<= y 240) (<= 240 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56)))), 50987#(and (<= 242 y) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 242)), 50988#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 244) (<= 244 y)), 50989#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 246 y) (<= y 246)), 50990#(and (<= y 248) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 248 y)), 50991#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 250) (<= 250 y)), 50992#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 252) (<= 252 y)), 50993#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 254 y) (<= y 254)), 50994#(and (<= y 256) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 256 y)), 50995#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 258) (<= 258 y)), 50996#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 50997#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 50998#(and (<= y 264) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 264 y)), 50999#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 266) (<= 266 y)), 51000#(and (<= y 268) (<= 268 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 51001#(and (<= y 270) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 270 y)), 51002#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 51003#(and (<= 274 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 274)), 51004#(and (<= y 276) (<= 276 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 51005#(and (<= 278 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 278)), 51006#(and (<= y 280) (<= 280 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16)))), 51007#(and (<= y 282) (<= 282 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 51008#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 284) (<= 284 y)), 51009#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 286 y) (<= y 286)), 51010#(and (<= 288 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 288)), 51011#(and (<= 290 y) (<= y 290) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 51012#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 292 y) (<= y 292)), 51013#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 294 y) (<= y 294)), 51014#(and (<= y 296) (<= 296 y) (or (<= (+ x 2) 0) (<= 0 x))), 51015#(and (<= y 298) (<= 298 y) (or (<= 2 x) (<= x 0))), 51016#(and (<= 300 y) (or (<= 4 x) (<= x 2)) (<= y 300)), 51017#(and (or (<= x 4) (<= 6 x)) (<= 302 y) (<= y 302)), 51018#(and (<= 304 y) (or (<= 8 x) (<= x 6)) (<= y 304)), 51019#(and (<= y 306) (<= 306 y) (or (<= x 8) (<= 10 x))), 51020#(and (or (<= 12 x) (<= x 10)) (<= y 308) (<= 308 y)), 51021#(and (<= 310 y) (<= y 310) (or (<= 14 x) (<= x 12))), 51022#(and (<= y 312) (<= 312 y) (or (<= x 14) (<= 16 x))), 51023#(and (or (<= 18 x) (<= x 16)) (<= y 314) (<= 314 y)), 51024#(and (<= y 316) (or (<= 20 x) (<= x 18)) (<= 316 y)), 51025#(and (or (<= 22 x) (<= x 20)) (<= 318 y) (<= y 318)), 51026#(and (or (<= 24 x) (<= x 22)) (<= 320 y) (<= y 320)), 50885#true, 50886#false, 50887#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 128)) (<= x (* 2 (div x 2))))), 50888#(and (<= 44 y) (<= y 44) (or (<= (+ x 254) 0) (<= 0 (+ x 252)))), 50889#(and (<= 46 y) (or (<= 0 (+ x 250)) (<= (+ x 252) 0)) (<= y 46)), 50890#(and (<= y 48) (<= 48 y) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 50891#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0))), 50892#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 50893#(and (<= 54 y) (<= y 54) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 50894#(and (<= y 56) (or (<= 0 (+ x 240)) (<= (+ x 242) 0)) (<= 56 y)), 50895#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 238)) (<= (+ x 240) 0))), 50896#(and (<= 60 y) (<= y 60) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 50897#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 62) (<= 62 y)), 50898#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 50899#(and (<= 66 y) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 66)), 50900#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 50901#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 50902#(and (<= y 72) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 72 y)), 50903#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 74) (<= 74 y)), 50904#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 50905#(and (<= y 78) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 78 y)), 50906#(and (<= y 80) (<= 80 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 50907#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 82) (<= 82 y)), 50908#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 84 y) (<= y 84)), 50909#(and (<= 86 y) (<= y 86) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 50910#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 88) (<= 88 y)), 50911#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 50912#(and (<= 92 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 92)), 50913#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 94 y) (<= y 94)), 50914#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 50915#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 50916#(and (<= 100 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 100)), 50917#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 50918#(and (<= y 104) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 104 y)), 50919#(and (<= 106 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 106)), 50920#(and (<= 108 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 108)), 50921#(and (<= 110 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= y 110)), 50922#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 112) (<= 112 y)), 50923#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 114 y) (<= y 114)), 50924#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 116 y) (<= y 116)), 50925#(and (<= y 118) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 118 y)), 50926#(and (<= y 120) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 120 y)), 50927#(and (<= y 122) (<= 122 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 50928#(and (<= y 124) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 124 y)), 50929#(and (<= y 126) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 126 y)), 50930#(and (<= 128 y) (<= y 128) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 50931#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 130) (<= 130 y)), 50932#(and (<= y 132) (<= 132 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 50933#(and (<= 134 y) (<= y 134) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 50934#(and (<= 136 y) (<= y 136) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 50935#(and (<= 138 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 138)), 50936#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 140 y) (<= y 140)), 50937#(and (<= 142 y) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 142)), 50938#(and (<= y 144) (<= 144 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 50939#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 146) (<= 146 y)), 50940#(and (<= 148 y) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 148)), 50941#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 50942#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 50943#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 154) (<= 154 y))] [2018-07-23 13:54:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 9730 backedges. 0 proven. 9730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,678 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:54:17,679 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:54:17,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=19741, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:54:17,679 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 142 states. [2018-07-23 13:54:19,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:19,784 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-07-23 13:54:19,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:54:19,784 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 141 [2018-07-23 13:54:19,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:19,784 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:54:19,785 INFO L226 Difference]: Without dead ends: 143 [2018-07-23 13:54:19,785 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=281, Invalid=19741, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:54:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-07-23 13:54:19,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-07-23 13:54:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-23 13:54:19,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2018-07-23 13:54:19,987 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 141 [2018-07-23 13:54:19,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:19,987 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2018-07-23 13:54:19,987 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:54:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2018-07-23 13:54:19,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 13:54:19,987 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:19,988 INFO L357 BasicCegarLoop]: trace histogram [140, 1, 1] [2018-07-23 13:54:19,988 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:19,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1752069959, now seen corresponding path program 140 times [2018-07-23 13:54:19,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:21,980 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:21,980 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:54:21,980 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:21,981 INFO L185 omatonBuilderFactory]: Interpolants [51712#(and (<= y 260) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 260 y)), 51713#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 51714#(and (<= y 264) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 264 y)), 51715#(and (<= y 266) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 266 y)), 51716#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 268) (<= 268 y)), 51717#(and (<= y 270) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 270 y)), 51718#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 51719#(and (<= 274 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 274)), 51720#(and (<= y 276) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 276 y)), 51721#(and (<= 278 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 278)), 51722#(and (<= y 280) (<= 280 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 51723#(and (<= y 282) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 282 y)), 51724#(and (<= y 284) (<= 284 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 51725#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 286 y) (<= y 286)), 51726#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 288 y) (<= y 288)), 51727#(and (<= 290 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 290)), 51728#(and (<= 292 y) (<= y 292) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 51729#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 294 y) (<= y 294)), 51730#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 296) (<= 296 y)), 51731#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 298) (<= 298 y)), 51732#(and (<= 300 y) (<= y 300) (or (<= 2 x) (<= x 0))), 51733#(and (<= 302 y) (<= y 302) (or (<= 4 x) (<= x 2))), 51734#(and (or (<= x 4) (<= 6 x)) (<= 304 y) (<= y 304)), 51735#(and (<= y 306) (<= 306 y) (or (<= 8 x) (<= x 6))), 51736#(and (<= y 308) (or (<= x 8) (<= 10 x)) (<= 308 y)), 51737#(and (or (<= 12 x) (<= x 10)) (<= 310 y) (<= y 310)), 51738#(and (<= y 312) (<= 312 y) (or (<= 14 x) (<= x 12))), 51739#(and (<= y 314) (<= 314 y) (or (<= x 14) (<= 16 x))), 51740#(and (<= y 316) (or (<= 18 x) (<= x 16)) (<= 316 y)), 51741#(and (<= 318 y) (or (<= 20 x) (<= x 18)) (<= y 318)), 51742#(and (or (<= 22 x) (<= x 20)) (<= 320 y) (<= y 320)), 51743#(and (<= 322 y) (or (<= 24 x) (<= x 22)) (<= y 322)), 51601#true, 51602#false, 51603#(and (or (< 0 (+ (div x 2) 129)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 51604#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 254)) (<= (+ x 256) 0))), 51605#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 46 y) (<= y 46)), 51606#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 51607#(and (<= y 50) (<= 50 y) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 51608#(and (<= 52 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 52)), 51609#(and (<= 54 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0)) (<= y 54)), 51610#(and (<= y 56) (or (<= (+ x 244) 0) (<= 0 (+ x 242))) (<= 56 y)), 51611#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 51612#(and (<= 60 y) (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 60)), 51613#(and (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= y 62) (<= 62 y)), 51614#(and (<= y 64) (<= 64 y) (or (<= (+ x 236) 0) (<= 0 (+ x 234)))), 51615#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 51616#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 68 y) (<= y 68)), 51617#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 51618#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 51619#(and (<= y 74) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 74 y)), 51620#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 76) (<= 76 y)), 51621#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 51622#(and (<= y 80) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 80 y)), 51623#(and (<= y 82) (<= 82 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 51624#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 84 y) (<= y 84)), 51625#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 86 y) (<= y 86)), 51626#(and (<= y 88) (<= 88 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 51627#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 90) (<= 90 y)), 51628#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 51629#(and (<= 94 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 94)), 51630#(and (<= 96 y) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 96)), 51631#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 51632#(and (<= 100 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 100)), 51633#(and (<= y 102) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 102 y)), 51634#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 51635#(and (<= 106 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 106)), 51636#(and (<= 108 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 108)), 51637#(and (<= 110 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 110)), 51638#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 51639#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 114 y) (<= y 114)), 51640#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 116 y) (<= y 116)), 51641#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 118) (<= 118 y)), 51642#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 51643#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 51644#(and (<= y 124) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= 124 y)), 51645#(and (<= y 126) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= 126 y)), 51646#(and (<= 128 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 128)), 51647#(and (<= y 130) (<= 130 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 51648#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 132) (<= 132 y)), 51649#(and (<= 134 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= y 134)), 51650#(and (<= 136 y) (<= y 136) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 51651#(and (<= 138 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160))) (<= y 138)), 51652#(and (<= 140 y) (<= y 140) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 51653#(and (<= 142 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 142)), 51654#(and (<= y 144) (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 144 y)), 51655#(and (<= y 146) (<= 146 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 51656#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 148 y) (<= y 148)), 51657#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 150) (<= 150 y)), 51658#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 51659#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 51660#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 156 y) (<= y 156)), 51661#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 158) (<= 158 y)), 51662#(and (<= 160 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 160)), 51663#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 51664#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 51665#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 166) (<= 166 y)), 51666#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 168) (<= 168 y)), 51667#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 170) (<= 170 y)), 51668#(and (<= 172 y) (<= y 172) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 51669#(and (<= 174 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 174)), 51670#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 176) (<= 176 y)), 51671#(and (<= y 178) (<= 178 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120)))), 51672#(and (<= 180 y) (<= y 180) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 51673#(and (<= 182 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 182)), 51674#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 184) (<= 184 y)), 51675#(and (<= 186 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 186)), 51676#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 188) (<= 188 y)), 51677#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 190 y) (<= y 190)), 51678#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 192 y) (<= y 192)), 51679#(and (<= y 194) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 194 y)), 51680#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 196) (<= 196 y)), 51681#(and (<= 198 y) (<= y 198) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 51682#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 200 y) (<= y 200)), 51683#(and (<= y 202) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 202 y)), 51684#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 204 y) (<= y 204)), 51685#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 206) (<= 206 y)), 51686#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 208 y) (<= y 208)), 51687#(and (<= 210 y) (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 210)), 51688#(and (<= 212 y) (<= y 212) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 51689#(and (<= y 214) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 214 y)), 51690#(and (<= y 216) (<= 216 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 51691#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 218) (<= 218 y)), 51692#(and (or (<= 0 (+ x 78)) (<= (+ x 80) 0)) (<= 220 y) (<= y 220)), 51693#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 51694#(and (<= 224 y) (<= y 224) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 51695#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 51696#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 228) (<= 228 y)), 51697#(and (<= 230 y) (<= y 230) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 51698#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 232 y) (<= y 232)), 51699#(and (<= 234 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 234)), 51700#(and (<= 236 y) (<= y 236) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 51701#(and (<= y 238) (<= 238 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 51702#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 240) (<= 240 y)), 51703#(and (<= 242 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 242)), 51704#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 244) (<= 244 y)), 51705#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 246 y) (<= y 246)), 51706#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 248) (<= 248 y)), 51707#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= y 250) (<= 250 y)), 51708#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 252) (<= 252 y)), 51709#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 254 y) (<= y 254)), 51710#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 256) (<= 256 y)), 51711#(and (<= y 258) (<= 258 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)))] [2018-07-23 13:54:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 9870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:21,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:54:21,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:54:21,982 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:54:21,983 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 143 states. [2018-07-23 13:54:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:24,229 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:54:24,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:54:24,229 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 142 [2018-07-23 13:54:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:24,230 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:54:24,230 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:54:24,230 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:54:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:54:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:54:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:54:24,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:54:24,408 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 142 [2018-07-23 13:54:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:24,409 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:54:24,409 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:54:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:54:24,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:54:24,409 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:24,409 INFO L357 BasicCegarLoop]: trace histogram [141, 1, 1] [2018-07-23 13:54:24,409 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:24,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1520406175, now seen corresponding path program 141 times [2018-07-23 13:54:24,410 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,464 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:26,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:54:26,464 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,465 INFO L185 omatonBuilderFactory]: Interpolants [52322#true, 52323#false, 52324#(and (or (< 0 (+ (div x 2) 130)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 52325#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 256)) (<= (+ x 258) 0))), 52326#(and (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 46 y) (<= y 46)), 52327#(and (<= y 48) (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 48 y)), 52328#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 52329#(and (<= 52 y) (<= y 52) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 52330#(and (<= 54 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 54)), 52331#(and (<= y 56) (or (<= 0 (+ x 244)) (<= (+ x 246) 0)) (<= 56 y)), 52332#(and (<= 58 y) (<= y 58) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 52333#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 52334#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 62) (<= 62 y)), 52335#(and (<= y 64) (<= 64 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 52336#(and (<= 66 y) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 66)), 52337#(and (<= 68 y) (<= y 68) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 52338#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 70 y) (<= y 70)), 52339#(and (<= y 72) (or (<= 0 (+ x 228)) (<= (+ x 230) 0)) (<= 72 y)), 52340#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 52341#(and (<= y 76) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 76 y)), 52342#(and (<= y 78) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 78 y)), 52343#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 52344#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 82) (<= 82 y)), 52345#(and (<= 84 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216))) (<= y 84)), 52346#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 86 y) (<= y 86)), 52347#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 88) (<= 88 y)), 52348#(and (<= y 90) (<= 90 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 52349#(and (<= 92 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 92)), 52350#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 52351#(and (<= 96 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 96)), 52352#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 98) (<= 98 y)), 52353#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 52354#(and (<= y 102) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 102 y)), 52355#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 104) (<= 104 y)), 52356#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 52357#(and (<= 108 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 108)), 52358#(and (<= 110 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 110)), 52359#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 188)) (<= (+ x 190) 0))), 52360#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 52361#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= 116 y) (<= y 116)), 52362#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 118) (<= 118 y)), 52363#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 120) (<= 120 y)), 52364#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 52365#(and (<= y 124) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 124 y)), 52366#(and (<= y 126) (<= 126 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 52367#(and (<= 128 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 128)), 52368#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 52369#(and (<= y 132) (<= 132 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 52370#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 134 y) (<= y 134)), 52371#(and (<= 136 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= y 136)), 52372#(and (<= 138 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0)) (<= y 138)), 52373#(and (<= 140 y) (<= y 140) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 52374#(and (<= 142 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 142)), 52375#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 52376#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 146) (<= 146 y)), 52377#(and (<= 148 y) (<= y 148) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 52378#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 150) (<= 150 y)), 52379#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 152) (<= 152 y)), 52380#(and (<= y 154) (<= 154 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 52381#(and (<= 156 y) (<= y 156) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 52382#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 158) (<= 158 y)), 52383#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 160 y) (<= y 160)), 52384#(and (<= y 162) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 162 y)), 52385#(and (<= 164 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 164)), 52386#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 52387#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 168) (<= 168 y)), 52388#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 170) (<= 170 y)), 52389#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 172 y) (<= y 172)), 52390#(and (<= 174 y) (<= y 174) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 52391#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 176) (<= 176 y)), 52392#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 178) (<= 178 y)), 52393#(and (<= 180 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 180)), 52394#(and (<= 182 y) (<= y 182) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 52395#(and (<= y 184) (<= 184 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 52396#(and (<= 186 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 186)), 52397#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 188) (<= 188 y)), 52398#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 190 y) (<= y 190)), 52399#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 192 y) (<= y 192)), 52400#(and (<= y 194) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 194 y)), 52401#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 196) (<= 196 y)), 52402#(and (<= 198 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 198)), 52403#(and (<= 200 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 200)), 52404#(and (<= y 202) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 202 y)), 52405#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 204 y) (<= y 204)), 52406#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 206) (<= 206 y)), 52407#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 208 y) (<= y 208)), 52408#(and (<= 210 y) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 210)), 52409#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 212 y) (<= y 212)), 52410#(and (<= y 214) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 214 y)), 52411#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 216) (<= 216 y)), 52412#(and (<= y 218) (<= 218 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 52413#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 220 y) (<= y 220)), 52414#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 52415#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 52416#(and (<= 226 y) (<= y 226) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 52417#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 52418#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 230 y) (<= y 230)), 52419#(and (<= 232 y) (<= y 232) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 52420#(and (<= 234 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 234)), 52421#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 236 y) (<= y 236)), 52422#(and (<= y 238) (<= 238 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 52423#(and (<= y 240) (<= 240 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60)))), 52424#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 242 y) (<= y 242)), 52425#(and (<= y 244) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 244 y)), 52426#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 246 y) (<= y 246)), 52427#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 248) (<= 248 y)), 52428#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 250) (<= 250 y)), 52429#(and (<= y 252) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 252 y)), 52430#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 254 y) (<= y 254)), 52431#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 256) (<= 256 y)), 52432#(and (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= y 258) (<= 258 y)), 52433#(and (<= y 260) (<= 260 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 52434#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 262 y) (<= y 262)), 52435#(and (<= y 264) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 264 y)), 52436#(and (<= y 266) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 266 y)), 52437#(and (<= y 268) (<= 268 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 52438#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 270) (<= 270 y)), 52439#(and (<= y 272) (<= 272 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 52440#(and (<= 274 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 274)), 52441#(and (<= y 276) (<= 276 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 52442#(and (<= 278 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 278)), 52443#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 52444#(and (<= y 282) (<= 282 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 52445#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 284) (<= 284 y)), 52446#(and (<= 286 y) (<= y 286) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 52447#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 288 y) (<= y 288)), 52448#(and (<= 290 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 290)), 52449#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 292 y) (<= y 292)), 52450#(and (<= 294 y) (<= y 294) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 52451#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 296) (<= 296 y)), 52452#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 298) (<= 298 y)), 52453#(and (<= 300 y) (<= y 300) (or (<= (+ x 2) 0) (<= 0 x))), 52454#(and (<= 302 y) (<= y 302) (or (<= 2 x) (<= x 0))), 52455#(and (or (<= 4 x) (<= x 2)) (<= 304 y) (<= y 304)), 52456#(and (or (<= x 4) (<= 6 x)) (<= y 306) (<= 306 y)), 52457#(and (<= y 308) (or (<= 8 x) (<= x 6)) (<= 308 y)), 52458#(and (or (<= x 8) (<= 10 x)) (<= 310 y) (<= y 310)), 52459#(and (or (<= 12 x) (<= x 10)) (<= y 312) (<= 312 y)), 52460#(and (<= y 314) (<= 314 y) (or (<= 14 x) (<= x 12))), 52461#(and (<= y 316) (<= 316 y) (or (<= x 14) (<= 16 x))), 52462#(and (or (<= 18 x) (<= x 16)) (<= 318 y) (<= y 318)), 52463#(and (<= 320 y) (or (<= 20 x) (<= x 18)) (<= y 320)), 52464#(and (<= 322 y) (or (<= 22 x) (<= x 20)) (<= y 322)), 52465#(and (or (<= 24 x) (<= x 22)) (<= y 324) (<= 324 y))] [2018-07-23 13:54:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 10011 backedges. 0 proven. 10011 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,466 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:54:26,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:54:26,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=20307, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:26,466 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 144 states. [2018-07-23 13:54:28,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:28,749 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2018-07-23 13:54:28,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:54:28,749 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 143 [2018-07-23 13:54:28,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:28,750 INFO L225 Difference]: With dead ends: 146 [2018-07-23 13:54:28,750 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:54:28,751 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=285, Invalid=20307, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:54:28,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:54:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:54:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:54:28,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-07-23 13:54:28,928 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 143 [2018-07-23 13:54:28,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:28,928 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-07-23 13:54:28,929 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:54:28,929 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-07-23 13:54:28,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:54:28,929 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:28,929 INFO L357 BasicCegarLoop]: trace histogram [142, 1, 1] [2018-07-23 13:54:28,929 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:28,929 INFO L82 PathProgramCache]: Analyzing trace with hash 112048775, now seen corresponding path program 142 times [2018-07-23 13:54:28,930 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:31,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:31,008 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:31,008 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:54:31,008 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:31,009 INFO L185 omatonBuilderFactory]: Interpolants [53048#true, 53049#false, 53050#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 131)) (<= x (* 2 (div x 2))))), 53051#(and (<= 44 y) (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= y 44)), 53052#(and (or (<= 0 (+ x 256)) (<= (+ x 258) 0)) (<= 46 y) (<= y 46)), 53053#(and (<= y 48) (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 48 y)), 53054#(and (<= y 50) (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 50 y)), 53055#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 53056#(and (<= 54 y) (or (<= (+ x 250) 0) (<= 0 (+ x 248))) (<= y 54)), 53057#(and (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 56) (<= 56 y)), 53058#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 53059#(and (<= 60 y) (<= y 60) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 53060#(and (<= y 62) (or (<= 0 (+ x 240)) (<= (+ x 242) 0)) (<= 62 y)), 53061#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 238)) (<= (+ x 240) 0))), 53062#(and (<= 66 y) (<= y 66) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 53063#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 68 y) (<= y 68)), 53064#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 53065#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 72) (<= 72 y)), 53066#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 53067#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 53068#(and (<= y 78) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 78 y)), 53069#(and (<= y 80) (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 80 y)), 53070#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 53071#(and (<= 84 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 84)), 53072#(and (<= 86 y) (<= y 86) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 53073#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 88) (<= 88 y)), 53074#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 90) (<= 90 y)), 53075#(and (<= 92 y) (<= y 92) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 53076#(and (<= 94 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 94)), 53077#(and (<= 96 y) (<= y 96) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 53078#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 98) (<= 98 y)), 53079#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 100 y) (<= y 100)), 53080#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 53081#(and (<= y 104) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 104 y)), 53082#(and (<= 106 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 106)), 53083#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 53084#(and (<= 110 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 110)), 53085#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 190)) (<= (+ x 192) 0))), 53086#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 114 y) (<= y 114)), 53087#(and (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 116 y) (<= y 116)), 53088#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 118) (<= 118 y)), 53089#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 120) (<= 120 y)), 53090#(and (<= y 122) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 122 y)), 53091#(and (<= y 124) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= 124 y)), 53092#(and (<= y 126) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 126 y)), 53093#(and (<= 128 y) (<= y 128) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 53094#(and (<= y 130) (<= 130 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 53095#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 132) (<= 132 y)), 53096#(and (<= 134 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 134)), 53097#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 136 y) (<= y 136)), 53098#(and (<= 138 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164))) (<= y 138)), 53099#(and (<= 140 y) (<= y 140) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 53100#(and (<= 142 y) (<= y 142) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 53101#(and (<= y 144) (<= 144 y) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 53102#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 146) (<= 146 y)), 53103#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 148 y) (<= y 148)), 53104#(and (<= y 150) (<= 150 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 53105#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 152) (<= 152 y)), 53106#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 154) (<= 154 y)), 53107#(and (<= 156 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= y 156)), 53108#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 53109#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 160 y) (<= y 160)), 53110#(and (<= y 162) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 162 y)), 53111#(and (<= 164 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 164)), 53112#(and (<= y 166) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 166 y)), 53113#(and (<= y 168) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 168 y)), 53114#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 170) (<= 170 y)), 53115#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 172 y) (<= y 172)), 53116#(and (<= 174 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 174)), 53117#(and (<= y 176) (<= 176 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 53118#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0))), 53119#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 180 y) (<= y 180)), 53120#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 182 y) (<= y 182)), 53121#(and (<= y 184) (<= 184 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 53122#(and (<= 186 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 186)), 53123#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 188) (<= 188 y)), 53124#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 190 y) (<= y 190)), 53125#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 192 y) (<= y 192)), 53126#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 194) (<= 194 y)), 53127#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 196) (<= 196 y)), 53128#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 198 y) (<= y 198)), 53129#(and (<= 200 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 200)), 53130#(and (<= y 202) (<= 202 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 53131#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 204 y) (<= y 204)), 53132#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 206) (<= 206 y)), 53133#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 208 y) (<= y 208)), 53134#(and (<= 210 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 210)), 53135#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 212 y) (<= y 212)), 53136#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 214) (<= 214 y)), 53137#(and (<= y 216) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 216 y)), 53138#(and (<= y 218) (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 218 y)), 53139#(and (<= 220 y) (<= y 220) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 53140#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 222) (<= 222 y)), 53141#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 53142#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 53143#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 228) (<= 228 y)), 53144#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 53145#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 232 y) (<= y 232)), 53146#(and (<= 234 y) (<= y 234) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 53147#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 236 y) (<= y 236)), 53148#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 238) (<= 238 y)), 53149#(and (<= y 240) (<= 240 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62)))), 53150#(and (<= 242 y) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 242)), 53151#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 244) (<= 244 y)), 53152#(and (<= 246 y) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 246)), 53153#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 248) (<= 248 y)), 53154#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 250) (<= 250 y)), 53155#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 252) (<= 252 y)), 53156#(and (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 254 y) (<= y 254)), 53157#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 256) (<= 256 y)), 53158#(and (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 258) (<= 258 y)), 53159#(and (<= y 260) (<= 260 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 53160#(and (<= 262 y) (<= y 262) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 53161#(and (<= y 264) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 264 y)), 53162#(and (<= y 266) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 266 y)), 53163#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 53164#(and (<= y 270) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 270 y)), 53165#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 272) (<= 272 y)), 53166#(and (<= 274 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 274)), 53167#(and (<= y 276) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 276 y)), 53168#(and (<= 278 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 278)), 53169#(and (<= y 280) (<= 280 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22)))), 53170#(and (<= y 282) (<= 282 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 53171#(and (<= y 284) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= 284 y)), 53172#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 286 y) (<= y 286)), 53173#(and (<= 288 y) (<= y 288) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 53174#(and (<= 290 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 290)), 53175#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 292 y) (<= y 292)), 53176#(and (<= 294 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 294)), 53177#(and (<= y 296) (<= 296 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 53178#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 298) (<= 298 y)), 53179#(and (<= 300 y) (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 300)), 53180#(and (<= 302 y) (<= y 302) (or (<= (+ x 2) 0) (<= 0 x))), 53181#(and (<= 304 y) (<= y 304) (or (<= 2 x) (<= x 0))), 53182#(and (<= y 306) (<= 306 y) (or (<= 4 x) (<= x 2))), 53183#(and (or (<= x 4) (<= 6 x)) (<= y 308) (<= 308 y)), 53184#(and (<= 310 y) (or (<= 8 x) (<= x 6)) (<= y 310)), 53185#(and (or (<= x 8) (<= 10 x)) (<= y 312) (<= 312 y)), 53186#(and (or (<= 12 x) (<= x 10)) (<= y 314) (<= 314 y)), 53187#(and (<= y 316) (<= 316 y) (or (<= 14 x) (<= x 12))), 53188#(and (<= 318 y) (<= y 318) (or (<= x 14) (<= 16 x))), 53189#(and (or (<= 18 x) (<= x 16)) (<= 320 y) (<= y 320)), 53190#(and (<= 322 y) (<= y 322) (or (<= 20 x) (<= x 18))), 53191#(and (or (<= 22 x) (<= x 20)) (<= y 324) (<= 324 y)), 53192#(and (<= y 326) (or (<= 24 x) (<= x 22)) (<= 326 y))] [2018-07-23 13:54:31,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10153 backedges. 0 proven. 10153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:31,010 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:54:31,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:54:31,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=20593, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:31,010 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 145 states. [2018-07-23 13:54:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:33,282 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:54:33,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:54:33,282 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 144 [2018-07-23 13:54:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:33,282 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:54:33,283 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:54:33,283 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=287, Invalid=20593, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:54:33,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:54:33,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:54:33,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:54:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:54:33,463 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 144 [2018-07-23 13:54:33,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:33,463 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:54:33,463 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:54:33,463 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:54:33,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:54:33,463 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:33,464 INFO L357 BasicCegarLoop]: trace histogram [143, 1, 1] [2018-07-23 13:54:33,464 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:33,464 INFO L82 PathProgramCache]: Analyzing trace with hash -821455327, now seen corresponding path program 143 times [2018-07-23 13:54:33,464 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,536 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:35,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:54:35,536 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,537 INFO L185 omatonBuilderFactory]: Interpolants [53779#true, 53780#false, 53781#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 132)) (<= x (* 2 (div x 2))))), 53782#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 260)) (<= (+ x 262) 0))), 53783#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= 46 y) (<= y 46)), 53784#(and (<= y 48) (or (<= 0 (+ x 256)) (<= (+ x 258) 0)) (<= 48 y)), 53785#(and (<= y 50) (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 50 y)), 53786#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 52 y) (<= y 52)), 53787#(and (<= 54 y) (<= y 54) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 53788#(and (<= y 56) (or (<= (+ x 250) 0) (<= 0 (+ x 248))) (<= 56 y)), 53789#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 246)) (<= (+ x 248) 0))), 53790#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 53791#(and (<= y 62) (or (<= (+ x 244) 0) (<= 0 (+ x 242))) (<= 62 y)), 53792#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 53793#(and (<= 66 y) (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 66)), 53794#(and (<= 68 y) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= y 68)), 53795#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 70 y) (<= y 70)), 53796#(and (<= y 72) (<= 72 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 53797#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 74) (<= 74 y)), 53798#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 53799#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 53800#(and (<= y 80) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 80 y)), 53801#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 82) (<= 82 y)), 53802#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 53803#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 86 y) (<= y 86)), 53804#(and (<= y 88) (<= 88 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 53805#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 90) (<= 90 y)), 53806#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 92 y) (<= y 92)), 53807#(and (<= 94 y) (<= y 94) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 53808#(and (<= 96 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 96)), 53809#(and (<= y 98) (<= 98 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 53810#(and (<= 100 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 100)), 53811#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 102) (<= 102 y)), 53812#(and (<= y 104) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= 104 y)), 53813#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 53814#(and (<= 108 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 108)), 53815#(and (<= 110 y) (<= y 110) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 53816#(and (<= y 112) (<= 112 y) (or (<= (+ x 194) 0) (<= 0 (+ x 192)))), 53817#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 114 y) (<= y 114)), 53818#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 116 y) (<= y 116)), 53819#(and (<= y 118) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 118 y)), 53820#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 120) (<= 120 y)), 53821#(and (<= y 122) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 122 y)), 53822#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 124) (<= 124 y)), 53823#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 53824#(and (<= 128 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 128)), 53825#(and (<= y 130) (<= 130 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 53826#(and (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 132) (<= 132 y)), 53827#(and (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= 134 y) (<= y 134)), 53828#(and (<= 136 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 136)), 53829#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 138 y) (<= y 138)), 53830#(and (<= 140 y) (<= y 140) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 53831#(and (<= 142 y) (<= y 142) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 53832#(and (<= y 144) (<= 144 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 53833#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= y 146) (<= 146 y)), 53834#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 156)) (<= (+ x 158) 0))), 53835#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 150) (<= 150 y)), 53836#(and (<= y 152) (<= 152 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 53837#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 154) (<= 154 y)), 53838#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 156 y) (<= y 156)), 53839#(and (<= y 158) (<= 158 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 53840#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 53841#(and (<= y 162) (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 162 y)), 53842#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 164 y) (<= y 164)), 53843#(and (<= y 166) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 166 y)), 53844#(and (<= y 168) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= 168 y)), 53845#(and (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 170) (<= 170 y)), 53846#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 172 y) (<= y 172)), 53847#(and (<= 174 y) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 174)), 53848#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 176) (<= 176 y)), 53849#(and (<= y 178) (<= 178 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 53850#(and (<= 180 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 180)), 53851#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 182 y) (<= y 182)), 53852#(and (<= y 184) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 184 y)), 53853#(and (<= 186 y) (<= y 186) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 53854#(and (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 188) (<= 188 y)), 53855#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 190 y) (<= y 190)), 53856#(and (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 192 y) (<= y 192)), 53857#(and (<= y 194) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 194 y)), 53858#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 196) (<= 196 y)), 53859#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 198 y) (<= y 198)), 53860#(and (<= 200 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 200)), 53861#(and (<= y 202) (<= 202 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0))), 53862#(and (<= 204 y) (<= y 204) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 53863#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 206) (<= 206 y)), 53864#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 208 y) (<= y 208)), 53865#(and (<= 210 y) (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 210)), 53866#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 212 y) (<= y 212)), 53867#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 214) (<= 214 y)), 53868#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 216) (<= 216 y)), 53869#(and (<= y 218) (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 218 y)), 53870#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= 220 y) (<= y 220)), 53871#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 53872#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 224 y) (<= y 224)), 53873#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 53874#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 53875#(and (<= 230 y) (<= y 230) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 53876#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 53877#(and (<= 234 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 234)), 53878#(and (<= 236 y) (<= y 236) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 53879#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 238) (<= 238 y)), 53880#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 240) (<= 240 y)), 53881#(and (<= 242 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 242)), 53882#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 244) (<= 244 y)), 53883#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 246 y) (<= y 246)), 53884#(and (<= y 248) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 248 y)), 53885#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 250) (<= 250 y)), 53886#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 252) (<= 252 y)), 53887#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 254 y) (<= y 254)), 53888#(and (<= y 256) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 256 y)), 53889#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 258) (<= 258 y)), 53890#(and (<= y 260) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 260 y)), 53891#(and (<= 262 y) (<= y 262) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 53892#(and (<= y 264) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 264 y)), 53893#(and (<= y 266) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 266 y)), 53894#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 53895#(and (<= y 270) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 270 y)), 53896#(and (<= y 272) (<= 272 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 53897#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 274 y) (<= y 274)), 53898#(and (<= y 276) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 276 y)), 53899#(and (<= 278 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 278)), 53900#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0))), 53901#(and (<= y 282) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 282 y)), 53902#(and (<= y 284) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= 284 y)), 53903#(and (<= 286 y) (<= y 286) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 53904#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 288 y) (<= y 288)), 53905#(and (<= 290 y) (<= y 290) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 53906#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 292 y) (<= y 292)), 53907#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 294 y) (<= y 294)), 53908#(and (<= y 296) (<= 296 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 53909#(and (<= y 298) (<= 298 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 53910#(and (<= 300 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 300)), 53911#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 302 y) (<= y 302)), 53912#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 304 y) (<= y 304)), 53913#(and (<= y 306) (<= 306 y) (or (<= 2 x) (<= x 0))), 53914#(and (<= y 308) (or (<= 4 x) (<= x 2)) (<= 308 y)), 53915#(and (or (<= x 4) (<= 6 x)) (<= 310 y) (<= y 310)), 53916#(and (<= y 312) (<= 312 y) (or (<= 8 x) (<= x 6))), 53917#(and (<= y 314) (or (<= x 8) (<= 10 x)) (<= 314 y)), 53918#(and (or (<= 12 x) (<= x 10)) (<= y 316) (<= 316 y)), 53919#(and (<= 318 y) (<= y 318) (or (<= 14 x) (<= x 12))), 53920#(and (<= 320 y) (<= y 320) (or (<= x 14) (<= 16 x))), 53921#(and (<= 322 y) (or (<= 18 x) (<= x 16)) (<= y 322)), 53922#(and (<= y 324) (or (<= 20 x) (<= x 18)) (<= 324 y)), 53923#(and (<= y 326) (or (<= 22 x) (<= x 20)) (<= 326 y)), 53924#(and (or (<= 24 x) (<= x 22)) (<= 328 y) (<= y 328))] [2018-07-23 13:54:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10296 backedges. 0 proven. 10296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:35,538 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:54:35,538 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:54:35,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=20881, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:35,539 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 146 states. [2018-07-23 13:54:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:37,873 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-07-23 13:54:37,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:54:37,873 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 145 [2018-07-23 13:54:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:37,874 INFO L225 Difference]: With dead ends: 148 [2018-07-23 13:54:37,874 INFO L226 Difference]: Without dead ends: 147 [2018-07-23 13:54:37,875 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=289, Invalid=20881, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:54:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-07-23 13:54:38,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-07-23 13:54:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:54:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2018-07-23 13:54:38,058 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 145 [2018-07-23 13:54:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:38,058 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2018-07-23 13:54:38,059 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:54:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2018-07-23 13:54:38,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:54:38,059 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:38,059 INFO L357 BasicCegarLoop]: trace histogram [144, 1, 1] [2018-07-23 13:54:38,059 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash 304688583, now seen corresponding path program 144 times [2018-07-23 13:54:38,060 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,144 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:40,144 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:54:40,144 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,145 INFO L185 omatonBuilderFactory]: Interpolants [54528#(and (<= y 64) (<= 64 y) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 54529#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 54530#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 68 y) (<= y 68)), 54531#(and (<= 70 y) (<= y 70) (or (<= (+ x 238) 0) (<= 0 (+ x 236)))), 54532#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 72) (<= 72 y)), 54533#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 54534#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 76) (<= 76 y)), 54535#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 54536#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 54537#(and (<= y 82) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= 82 y)), 54538#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 84 y) (<= y 84)), 54539#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 54540#(and (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 88) (<= 88 y)), 54541#(and (<= y 90) (<= 90 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 54542#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 92 y) (<= y 92)), 54543#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 94 y) (<= y 94)), 54544#(and (<= 96 y) (<= y 96) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 54545#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 98) (<= 98 y)), 54546#(and (<= 100 y) (<= y 100) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 54547#(and (<= y 102) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= 102 y)), 54548#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 104) (<= 104 y)), 54549#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 54550#(and (<= 108 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 108)), 54551#(and (<= 110 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 110)), 54552#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 54553#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 114 y) (<= y 114)), 54554#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 116 y) (<= y 116)), 54555#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 118) (<= 118 y)), 54556#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 54557#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 122) (<= 122 y)), 54558#(and (<= y 124) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 124 y)), 54559#(and (<= y 126) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 126 y)), 54560#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 54561#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0))), 54562#(and (<= y 132) (<= 132 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 54563#(and (<= 134 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 134)), 54564#(and (<= 136 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 136)), 54565#(and (<= 138 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168))) (<= y 138)), 54566#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 140 y) (<= y 140)), 54567#(and (<= 142 y) (<= y 142) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 54568#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 54569#(and (<= y 146) (<= 146 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 54570#(and (<= 148 y) (<= y 148) (or (<= (+ x 160) 0) (<= 0 (+ x 158)))), 54571#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 150) (<= 150 y)), 54572#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 152) (<= 152 y)), 54573#(and (<= y 154) (<= 154 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 54574#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 156 y) (<= y 156)), 54575#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= y 158) (<= 158 y)), 54576#(and (<= 160 y) (<= y 160) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 54577#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 54578#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 164 y) (<= y 164)), 54579#(and (<= y 166) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 166 y)), 54580#(and (<= y 168) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= 168 y)), 54581#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 170) (<= 170 y)), 54582#(and (<= 172 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 172)), 54583#(and (<= 174 y) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 174)), 54584#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 176) (<= 176 y)), 54585#(and (<= y 178) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 178 y)), 54586#(and (<= 180 y) (<= y 180) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 54587#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 182 y) (<= y 182)), 54588#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 184) (<= 184 y)), 54589#(and (<= 186 y) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 186)), 54590#(and (<= y 188) (<= 188 y) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 54591#(and (<= 190 y) (<= y 190) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 54592#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 192 y) (<= y 192)), 54593#(and (<= y 194) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 194 y)), 54594#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= y 196) (<= 196 y)), 54595#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 198 y) (<= y 198)), 54596#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 200 y) (<= y 200)), 54597#(and (<= y 202) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 202 y)), 54598#(and (<= 204 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 204)), 54599#(and (<= y 206) (<= 206 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 54600#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 208 y) (<= y 208)), 54601#(and (<= 210 y) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 210)), 54602#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 212 y) (<= y 212)), 54603#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 214) (<= 214 y)), 54604#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= y 216) (<= 216 y)), 54605#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 218) (<= 218 y)), 54606#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= 220 y) (<= y 220)), 54607#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 54608#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 54609#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 226 y) (<= y 226)), 54610#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 54611#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 54612#(and (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= 232 y) (<= y 232)), 54613#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 54614#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= 236 y) (<= y 236)), 54615#(and (<= y 238) (<= 238 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 54616#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 240) (<= 240 y)), 54617#(and (<= 242 y) (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 242)), 54618#(and (<= y 244) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 244 y)), 54619#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 246 y) (<= y 246)), 54620#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 248) (<= 248 y)), 54621#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= y 250) (<= 250 y)), 54622#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 252) (<= 252 y)), 54623#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 254 y) (<= y 254)), 54624#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 256) (<= 256 y)), 54625#(and (<= y 258) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 258 y)), 54626#(and (<= y 260) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 260 y)), 54627#(and (<= 262 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= y 262)), 54628#(and (<= y 264) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 264 y)), 54629#(and (<= y 266) (<= 266 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 54630#(and (<= y 268) (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 268 y)), 54631#(and (<= y 270) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= 270 y)), 54632#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 54633#(and (<= 274 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 274)), 54634#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 276) (<= 276 y)), 54635#(and (<= 278 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 278)), 54636#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0))), 54637#(and (<= y 282) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= 282 y)), 54638#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 284) (<= 284 y)), 54639#(and (<= 286 y) (<= y 286) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 54640#(and (<= 288 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18))) (<= y 288)), 54641#(and (<= 290 y) (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 290)), 54642#(and (<= 292 y) (<= y 292) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 54643#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 294 y) (<= y 294)), 54644#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 296) (<= 296 y)), 54645#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= y 298) (<= 298 y)), 54646#(and (<= 300 y) (<= y 300) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 54647#(and (<= 302 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= y 302)), 54648#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 304 y) (<= y 304)), 54649#(and (<= y 306) (<= 306 y) (or (<= (+ x 2) 0) (<= 0 x))), 54650#(and (<= y 308) (<= 308 y) (or (<= 2 x) (<= x 0))), 54651#(and (or (<= 4 x) (<= x 2)) (<= 310 y) (<= y 310)), 54652#(and (or (<= x 4) (<= 6 x)) (<= y 312) (<= 312 y)), 54653#(and (<= y 314) (<= 314 y) (or (<= 8 x) (<= x 6))), 54654#(and (<= y 316) (or (<= x 8) (<= 10 x)) (<= 316 y)), 54655#(and (or (<= 12 x) (<= x 10)) (<= 318 y) (<= y 318)), 54656#(and (<= 320 y) (<= y 320) (or (<= 14 x) (<= x 12))), 54657#(and (<= 322 y) (<= y 322) (or (<= x 14) (<= 16 x))), 54658#(and (or (<= 18 x) (<= x 16)) (<= y 324) (<= 324 y)), 54659#(and (<= y 326) (<= 326 y) (or (<= 20 x) (<= x 18))), 54660#(and (or (<= 22 x) (<= x 20)) (<= 328 y) (<= y 328)), 54661#(and (<= y 330) (or (<= 24 x) (<= x 22)) (<= 330 y)), 54515#true, 54516#false, 54517#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 133)) (<= x (* 2 (div x 2))))), 54518#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 262)) (<= (+ x 264) 0))), 54519#(and (<= 46 y) (or (<= 0 (+ x 260)) (<= (+ x 262) 0)) (<= y 46)), 54520#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= y 48) (<= 48 y)), 54521#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 256)) (<= (+ x 258) 0))), 54522#(and (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 52 y) (<= y 52)), 54523#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 54 y) (<= y 54)), 54524#(and (<= y 56) (or (<= 0 (+ x 250)) (<= (+ x 252) 0)) (<= 56 y)), 54525#(and (<= 58 y) (<= y 58) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 54526#(and (<= 60 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 60)), 54527#(and (or (<= 0 (+ x 244)) (<= (+ x 246) 0)) (<= y 62) (<= 62 y))] [2018-07-23 13:54:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 10440 backedges. 0 proven. 10440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,146 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:54:40,146 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:54:40,147 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=21171, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:40,147 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand 147 states. [2018-07-23 13:54:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:42,522 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:54:42,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:54:42,522 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 146 [2018-07-23 13:54:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:42,523 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:54:42,523 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:54:42,524 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=291, Invalid=21171, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:54:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:54:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:54:42,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:54:42,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:54:42,709 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 146 [2018-07-23 13:54:42,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:42,710 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:54:42,710 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:54:42,710 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:54:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:54:42,710 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:42,710 INFO L357 BasicCegarLoop]: trace histogram [145, 1, 1] [2018-07-23 13:54:42,710 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:42,711 INFO L82 PathProgramCache]: Analyzing trace with hash 855411425, now seen corresponding path program 145 times [2018-07-23 13:54:42,711 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:44,773 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:44,773 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:54:44,774 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:44,774 INFO L185 omatonBuilderFactory]: Interpolants [55296#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 118) (<= 118 y)), 55297#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 120) (<= 120 y)), 55298#(and (<= y 122) (<= 122 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 55299#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 124) (<= 124 y)), 55300#(and (<= y 126) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= 126 y)), 55301#(and (<= 128 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 128)), 55302#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 55303#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 132) (<= 132 y)), 55304#(and (<= 134 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 134)), 55305#(and (<= 136 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 136)), 55306#(and (<= 138 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 138)), 55307#(and (<= 140 y) (<= y 140) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 55308#(and (<= 142 y) (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 142)), 55309#(and (<= y 144) (<= 144 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 55310#(and (<= y 146) (<= 146 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 55311#(and (<= 148 y) (<= y 148) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 55312#(and (<= y 150) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 150 y)), 55313#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 152) (<= 152 y)), 55314#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 154) (<= 154 y)), 55315#(and (<= 156 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152))) (<= y 156)), 55316#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= y 158) (<= 158 y)), 55317#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 160 y) (<= y 160)), 55318#(and (<= y 162) (<= 162 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 55319#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 55320#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 166) (<= 166 y)), 55321#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 168) (<= 168 y)), 55322#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 170) (<= 170 y)), 55323#(and (<= 172 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 172)), 55324#(and (<= 174 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 174)), 55325#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= y 176) (<= 176 y)), 55326#(and (<= y 178) (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 178 y)), 55327#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 180 y) (<= y 180)), 55328#(and (<= 182 y) (<= y 182) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 55329#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 184) (<= 184 y)), 55330#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 186 y) (<= y 186)), 55331#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= y 188) (<= 188 y)), 55332#(and (<= 190 y) (<= y 190) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 55333#(and (<= 192 y) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= y 192)), 55334#(and (<= y 194) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 194 y)), 55335#(and (<= y 196) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= 196 y)), 55336#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 198 y) (<= y 198)), 55337#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 200 y) (<= y 200)), 55338#(and (<= y 202) (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 202 y)), 55339#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 204 y) (<= y 204)), 55340#(and (<= y 206) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 206 y)), 55341#(and (<= 208 y) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= y 208)), 55342#(and (<= 210 y) (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 210)), 55343#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 212 y) (<= y 212)), 55344#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 214) (<= 214 y)), 55345#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= y 216) (<= 216 y)), 55346#(and (<= y 218) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 218 y)), 55347#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 220 y) (<= y 220)), 55348#(and (<= y 222) (<= 222 y) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 55349#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 55350#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 55351#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= y 228) (<= 228 y)), 55352#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 55353#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 55354#(and (<= 234 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 234)), 55355#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 55356#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 238) (<= 238 y)), 55357#(and (<= y 240) (<= 240 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68)))), 55358#(and (<= 242 y) (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 242)), 55359#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 244) (<= 244 y)), 55360#(and (<= 246 y) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 246)), 55361#(and (<= y 248) (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 248 y)), 55362#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 250) (<= 250 y)), 55363#(and (<= y 252) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 252 y)), 55364#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 254 y) (<= y 254)), 55365#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 256) (<= 256 y)), 55366#(and (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 258) (<= 258 y)), 55367#(and (<= y 260) (<= 260 y) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 55368#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 262 y) (<= y 262)), 55369#(and (<= y 264) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 264 y)), 55370#(and (<= y 266) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 266 y)), 55371#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 55372#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 270) (<= 270 y)), 55373#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 55374#(and (<= 274 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 274)), 55375#(and (<= y 276) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 276 y)), 55376#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= 278 y) (<= y 278)), 55377#(and (<= y 280) (<= 280 y) (or (<= (+ x 30) 0) (<= 0 (+ x 28)))), 55378#(and (<= y 282) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 282 y)), 55379#(and (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 284) (<= 284 y)), 55380#(and (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= 286 y) (<= y 286)), 55381#(and (<= 288 y) (or (<= 0 (+ x 20)) (<= (+ x 22) 0)) (<= y 288)), 55382#(and (<= 290 y) (<= y 290) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 55383#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 292 y) (<= y 292)), 55384#(and (<= 294 y) (<= y 294) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 55385#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 296) (<= 296 y)), 55386#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 298) (<= 298 y)), 55387#(and (<= 300 y) (<= y 300) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 55388#(and (<= 302 y) (<= y 302) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 55389#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 304 y) (<= y 304)), 55390#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 306) (<= 306 y)), 55391#(and (<= y 308) (or (<= (+ x 2) 0) (<= 0 x)) (<= 308 y)), 55392#(and (<= 310 y) (<= y 310) (or (<= 2 x) (<= x 0))), 55393#(and (or (<= 4 x) (<= x 2)) (<= y 312) (<= 312 y)), 55394#(and (or (<= x 4) (<= 6 x)) (<= y 314) (<= 314 y)), 55395#(and (<= y 316) (<= 316 y) (or (<= 8 x) (<= x 6))), 55396#(and (<= 318 y) (or (<= x 8) (<= 10 x)) (<= y 318)), 55397#(and (or (<= 12 x) (<= x 10)) (<= 320 y) (<= y 320)), 55398#(and (<= 322 y) (<= y 322) (or (<= 14 x) (<= x 12))), 55399#(and (<= y 324) (or (<= x 14) (<= 16 x)) (<= 324 y)), 55400#(and (<= y 326) (or (<= 18 x) (<= x 16)) (<= 326 y)), 55401#(and (<= 328 y) (or (<= 20 x) (<= x 18)) (<= y 328)), 55402#(and (<= y 330) (or (<= 22 x) (<= x 20)) (<= 330 y)), 55403#(and (or (<= 24 x) (<= x 22)) (<= y 332) (<= 332 y)), 55256#true, 55257#false, 55258#(and (or (< 0 (+ (div x 2) 134)) (<= x (* 2 (div x 2)))) (<= y 42) (<= 42 y)), 55259#(and (<= 44 y) (<= y 44) (or (<= (+ x 266) 0) (<= 0 (+ x 264)))), 55260#(and (<= 46 y) (or (<= 0 (+ x 262)) (<= (+ x 264) 0)) (<= y 46)), 55261#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 260)) (<= (+ x 262) 0))), 55262#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= y 50) (<= 50 y)), 55263#(and (<= 52 y) (or (<= 0 (+ x 256)) (<= (+ x 258) 0)) (<= y 52)), 55264#(and (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 54 y) (<= y 54)), 55265#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= y 56) (<= 56 y)), 55266#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 55267#(and (<= 60 y) (<= y 60) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 55268#(and (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 62) (<= 62 y)), 55269#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 55270#(and (<= 66 y) (<= y 66) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 55271#(and (<= 68 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0)) (<= y 68)), 55272#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= 70 y) (<= y 70)), 55273#(and (<= y 72) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= 72 y)), 55274#(and (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= y 74) (<= 74 y)), 55275#(and (<= y 76) (<= 76 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 55276#(and (<= y 78) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 78 y)), 55277#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 55278#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 55279#(and (<= 84 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 84)), 55280#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 86 y) (<= y 86)), 55281#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 55282#(and (<= y 90) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= 90 y)), 55283#(and (<= 92 y) (<= y 92) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 55284#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 94 y) (<= y 94)), 55285#(and (<= 96 y) (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 96)), 55286#(and (<= y 98) (<= 98 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 55287#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= 100 y) (<= y 100)), 55288#(and (<= y 102) (<= 102 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 55289#(and (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 104) (<= 104 y)), 55290#(and (<= 106 y) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= y 106)), 55291#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 55292#(and (<= 110 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 110)), 55293#(and (<= y 112) (<= 112 y) (or (<= (+ x 198) 0) (<= 0 (+ x 196)))), 55294#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 55295#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 116 y) (<= y 116))] [2018-07-23 13:54:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10585 backedges. 0 proven. 10585 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:44,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:54:44,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:54:44,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=21463, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:44,776 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 148 states. [2018-07-23 13:54:47,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:47,086 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2018-07-23 13:54:47,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:54:47,086 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 147 [2018-07-23 13:54:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:47,087 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:54:47,087 INFO L226 Difference]: Without dead ends: 149 [2018-07-23 13:54:47,088 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=293, Invalid=21463, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:54:47,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-07-23 13:54:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-07-23 13:54:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-07-23 13:54:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-07-23 13:54:47,277 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 147 [2018-07-23 13:54:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:47,277 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-07-23 13:54:47,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:54:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-07-23 13:54:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 13:54:47,277 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:47,278 INFO L357 BasicCegarLoop]: trace histogram [146, 1, 1] [2018-07-23 13:54:47,278 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:47,278 INFO L82 PathProgramCache]: Analyzing trace with hash 747950343, now seen corresponding path program 146 times [2018-07-23 13:54:47,278 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,402 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:49,402 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:54:49,403 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,403 INFO L185 omatonBuilderFactory]: Interpolants [56064#(and (<= y 162) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 162 y)), 56065#(and (<= 164 y) (<= y 164) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 56066#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 56067#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 168) (<= 168 y)), 56068#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 170) (<= 170 y)), 56069#(and (<= 172 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 172)), 56070#(and (<= 174 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 174)), 56071#(and (<= y 176) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= 176 y)), 56072#(and (<= y 178) (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 178 y)), 56073#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 180 y) (<= y 180)), 56074#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= 182 y) (<= y 182)), 56075#(and (<= y 184) (<= 184 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 56076#(and (<= 186 y) (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 186)), 56077#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= y 188) (<= 188 y)), 56078#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 190 y) (<= y 190)), 56079#(and (<= 192 y) (<= y 192) (or (<= (+ x 120) 0) (<= 0 (+ x 118)))), 56080#(and (<= y 194) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 194 y)), 56081#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 196) (<= 196 y)), 56082#(and (<= 198 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 198)), 56083#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 200 y) (<= y 200)), 56084#(and (<= y 202) (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 202 y)), 56085#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 204 y) (<= y 204)), 56086#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 206) (<= 206 y)), 56087#(and (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= 208 y) (<= y 208)), 56088#(and (<= 210 y) (<= y 210) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 56089#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= 212 y) (<= y 212)), 56090#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 214) (<= 214 y)), 56091#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 216) (<= 216 y)), 56092#(and (<= y 218) (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 218 y)), 56093#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 220 y) (<= y 220)), 56094#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= y 222) (<= 222 y)), 56095#(and (<= 224 y) (<= y 224) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 56096#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 56097#(and (<= y 228) (<= 228 y) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 56098#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 230 y) (<= y 230)), 56099#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 56100#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 56101#(and (<= 236 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74))) (<= y 236)), 56102#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 56103#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 240) (<= 240 y)), 56104#(and (<= 242 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 242)), 56105#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 244) (<= 244 y)), 56106#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= 246 y) (<= y 246)), 56107#(and (<= y 248) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 248 y)), 56108#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 250) (<= 250 y)), 56109#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 252) (<= 252 y)), 56110#(and (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 254 y) (<= y 254)), 56111#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 256) (<= 256 y)), 56112#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= y 258) (<= 258 y)), 56113#(and (<= y 260) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 260 y)), 56114#(and (<= 262 y) (<= y 262) (or (<= (+ x 50) 0) (<= 0 (+ x 48)))), 56115#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 264) (<= 264 y)), 56116#(and (<= y 266) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 266 y)), 56117#(and (<= y 268) (<= 268 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 56118#(and (<= y 270) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= 270 y)), 56119#(and (<= y 272) (<= 272 y) (or (<= (+ x 40) 0) (<= 0 (+ x 38)))), 56120#(and (<= 274 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 274)), 56121#(and (<= y 276) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= 276 y)), 56122#(and (<= 278 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= y 278)), 56123#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 280) (<= 280 y)), 56124#(and (<= y 282) (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 282 y)), 56125#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 284) (<= 284 y)), 56126#(and (<= 286 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 286)), 56127#(and (<= 288 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 288)), 56128#(and (<= 290 y) (<= y 290) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 56129#(and (<= 292 y) (<= y 292) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 56130#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= 294 y) (<= y 294)), 56131#(and (<= y 296) (<= 296 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 56132#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 298) (<= 298 y)), 56133#(and (<= 300 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 300)), 56134#(and (<= 302 y) (<= y 302) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 56135#(and (<= 304 y) (<= y 304) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 56136#(and (<= y 306) (<= 306 y) (or (<= (+ x 6) 0) (<= 0 (+ x 4)))), 56137#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 308) (<= 308 y)), 56138#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= 310 y) (<= y 310)), 56139#(and (<= y 312) (<= 312 y) (or (<= 2 x) (<= x 0))), 56140#(and (<= y 314) (<= 314 y) (or (<= 4 x) (<= x 2))), 56141#(and (or (<= x 4) (<= 6 x)) (<= y 316) (<= 316 y)), 56142#(and (<= 318 y) (<= y 318) (or (<= 8 x) (<= x 6))), 56143#(and (<= 320 y) (or (<= x 8) (<= 10 x)) (<= y 320)), 56144#(and (or (<= 12 x) (<= x 10)) (<= 322 y) (<= y 322)), 56145#(and (<= y 324) (<= 324 y) (or (<= 14 x) (<= x 12))), 56146#(and (<= y 326) (<= 326 y) (or (<= x 14) (<= 16 x))), 56147#(and (or (<= 18 x) (<= x 16)) (<= 328 y) (<= y 328)), 56148#(and (<= y 330) (<= 330 y) (or (<= 20 x) (<= x 18))), 56149#(and (or (<= 22 x) (<= x 20)) (<= y 332) (<= 332 y)), 56150#(and (or (<= 24 x) (<= x 22)) (<= 334 y) (<= y 334)), 56002#true, 56003#false, 56004#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 135)) (<= x (* 2 (div x 2))))), 56005#(and (<= 44 y) (<= y 44) (or (<= (+ x 268) 0) (<= 0 (+ x 266)))), 56006#(and (or (<= (+ x 266) 0) (<= 0 (+ x 264))) (<= 46 y) (<= y 46)), 56007#(and (<= y 48) (<= 48 y) (or (<= 0 (+ x 262)) (<= (+ x 264) 0))), 56008#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 260)) (<= (+ x 262) 0))), 56009#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= 52 y) (<= y 52)), 56010#(and (or (<= 0 (+ x 256)) (<= (+ x 258) 0)) (<= 54 y) (<= y 54)), 56011#(and (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= y 56) (<= 56 y)), 56012#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= 58 y) (<= y 58)), 56013#(and (<= 60 y) (<= y 60) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 56014#(and (or (<= (+ x 250) 0) (<= 0 (+ x 248))) (<= y 62) (<= 62 y)), 56015#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0))), 56016#(and (<= 66 y) (<= y 66) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 56017#(and (<= 68 y) (<= y 68) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 56018#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 56019#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 72) (<= 72 y)), 56020#(and (<= y 74) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= 74 y)), 56021#(and (<= y 76) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 76 y)), 56022#(and (<= y 78) (<= 78 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 56023#(and (<= y 80) (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 80 y)), 56024#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 56025#(and (<= 84 y) (<= y 84) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 56026#(and (<= 86 y) (<= y 86) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 56027#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 88) (<= 88 y)), 56028#(and (<= y 90) (<= 90 y) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 56029#(and (<= 92 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 92)), 56030#(and (<= 94 y) (<= y 94) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 56031#(and (<= 96 y) (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 96)), 56032#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 98) (<= 98 y)), 56033#(and (<= 100 y) (<= y 100) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 56034#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 102) (<= 102 y)), 56035#(and (<= y 104) (<= 104 y) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 56036#(and (<= 106 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 106)), 56037#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 108 y) (<= y 108)), 56038#(and (<= 110 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0)) (<= y 110)), 56039#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0))), 56040#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 114 y) (<= y 114)), 56041#(and (<= 116 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0)) (<= y 116)), 56042#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 118) (<= 118 y)), 56043#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 120) (<= 120 y)), 56044#(and (<= y 122) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 122 y)), 56045#(and (<= y 124) (or (<= 0 (+ x 186)) (<= (+ x 188) 0)) (<= 124 y)), 56046#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 126) (<= 126 y)), 56047#(and (<= 128 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 128)), 56048#(and (<= y 130) (<= 130 y) (or (<= 0 (+ x 180)) (<= (+ x 182) 0))), 56049#(and (<= y 132) (<= 132 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0))), 56050#(and (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= 134 y) (<= y 134)), 56051#(and (<= 136 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 136)), 56052#(and (<= 138 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 138)), 56053#(and (<= 140 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 140)), 56054#(and (<= 142 y) (<= y 142) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 56055#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 144) (<= 144 y)), 56056#(and (<= y 146) (<= 146 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 56057#(and (<= 148 y) (<= y 148) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 56058#(and (<= y 150) (<= 150 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 56059#(and (<= y 152) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 152 y)), 56060#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 154) (<= 154 y)), 56061#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 156 y) (<= y 156)), 56062#(and (<= y 158) (<= 158 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 56063#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 160 y) (<= y 160))] [2018-07-23 13:54:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10731 backedges. 0 proven. 10731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:49,404 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:54:49,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:54:49,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=21757, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:49,406 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 149 states. [2018-07-23 13:54:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,883 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:54:51,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:54:51,883 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 148 [2018-07-23 13:54:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,884 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:54:51,884 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:54:51,885 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=295, Invalid=21757, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:54:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:54:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:54:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:54:52,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:54:52,084 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 148 [2018-07-23 13:54:52,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:52,084 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:54:52,085 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:54:52,085 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:54:52,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:54:52,085 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:52,085 INFO L357 BasicCegarLoop]: trace histogram [147, 1, 1] [2018-07-23 13:54:52,085 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:52,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1711624097, now seen corresponding path program 147 times [2018-07-23 13:54:52,085 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,237 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:54,237 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:54:54,237 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,238 INFO L185 omatonBuilderFactory]: Interpolants [56832#(and (<= y 196) (or (<= (+ x 118) 0) (<= 0 (+ x 116))) (<= 196 y)), 56833#(and (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= 198 y) (<= y 198)), 56834#(and (<= 200 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112))) (<= y 200)), 56835#(and (<= y 202) (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 202 y)), 56836#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= 204 y) (<= y 204)), 56837#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= y 206) (<= 206 y)), 56838#(and (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= 208 y) (<= y 208)), 56839#(and (<= 210 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 210)), 56840#(and (<= 212 y) (<= y 212) (or (<= (+ x 102) 0) (<= 0 (+ x 100)))), 56841#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 214) (<= 214 y)), 56842#(and (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= y 216) (<= 216 y)), 56843#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= y 218) (<= 218 y)), 56844#(and (or (<= (+ x 94) 0) (<= 0 (+ x 92))) (<= 220 y) (<= y 220)), 56845#(and (<= y 222) (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 222 y)), 56846#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 224 y) (<= y 224)), 56847#(and (<= 226 y) (<= y 226) (or (<= 0 (+ x 86)) (<= (+ x 88) 0))), 56848#(and (or (<= 0 (+ x 84)) (<= (+ x 86) 0)) (<= y 228) (<= 228 y)), 56849#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 56850#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 232 y) (<= y 232)), 56851#(and (<= 234 y) (<= y 234) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 56852#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 56853#(and (<= y 238) (<= 238 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 56854#(and (<= y 240) (<= 240 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0))), 56855#(and (<= 242 y) (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 242)), 56856#(and (<= y 244) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= 244 y)), 56857#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= 246 y) (<= y 246)), 56858#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 248) (<= 248 y)), 56859#(and (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= y 250) (<= 250 y)), 56860#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= y 252) (<= 252 y)), 56861#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= 254 y) (<= y 254)), 56862#(and (<= y 256) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 256 y)), 56863#(and (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= y 258) (<= 258 y)), 56864#(and (<= y 260) (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 260 y)), 56865#(and (<= 262 y) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= y 262)), 56866#(and (<= y 264) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 264 y)), 56867#(and (<= y 266) (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= 266 y)), 56868#(and (<= y 268) (<= 268 y) (or (<= 0 (+ x 44)) (<= (+ x 46) 0))), 56869#(and (<= y 270) (or (<= (+ x 44) 0) (<= 0 (+ x 42))) (<= 270 y)), 56870#(and (<= y 272) (<= 272 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0))), 56871#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= 274 y) (<= y 274)), 56872#(and (<= y 276) (<= 276 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0))), 56873#(and (<= 278 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0)) (<= y 278)), 56874#(and (<= y 280) (<= 280 y) (or (<= (+ x 34) 0) (<= 0 (+ x 32)))), 56875#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 282) (<= 282 y)), 56876#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= y 284) (<= 284 y)), 56877#(and (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= 286 y) (<= y 286)), 56878#(and (<= 288 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 288)), 56879#(and (<= 290 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 290)), 56880#(and (<= 292 y) (<= y 292) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 56881#(and (<= 294 y) (<= y 294) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 56882#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 296) (<= 296 y)), 56883#(and (<= y 298) (<= 298 y) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 56884#(and (<= 300 y) (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= y 300)), 56885#(and (<= 302 y) (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= y 302)), 56886#(and (or (<= 0 (+ x 8)) (<= (+ x 10) 0)) (<= 304 y) (<= y 304)), 56887#(and (<= y 306) (<= 306 y) (or (<= 0 (+ x 6)) (<= (+ x 8) 0))), 56888#(and (<= y 308) (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 308 y)), 56889#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= 310 y) (<= y 310)), 56890#(and (or (<= (+ x 2) 0) (<= 0 x)) (<= y 312) (<= 312 y)), 56891#(and (<= y 314) (<= 314 y) (or (<= 2 x) (<= x 0))), 56892#(and (<= y 316) (or (<= 4 x) (<= x 2)) (<= 316 y)), 56893#(and (or (<= x 4) (<= 6 x)) (<= 318 y) (<= y 318)), 56894#(and (<= 320 y) (<= y 320) (or (<= 8 x) (<= x 6))), 56895#(and (<= 322 y) (or (<= x 8) (<= 10 x)) (<= y 322)), 56896#(and (or (<= 12 x) (<= x 10)) (<= y 324) (<= 324 y)), 56897#(and (<= y 326) (<= 326 y) (or (<= 14 x) (<= x 12))), 56898#(and (<= 328 y) (or (<= x 14) (<= 16 x)) (<= y 328)), 56899#(and (<= y 330) (or (<= 18 x) (<= x 16)) (<= 330 y)), 56900#(and (or (<= 20 x) (<= x 18)) (<= y 332) (<= 332 y)), 56901#(and (or (<= 22 x) (<= x 20)) (<= 334 y) (<= y 334)), 56902#(and (or (<= 24 x) (<= x 22)) (<= 336 y) (<= y 336)), 56753#true, 56754#false, 56755#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 136)) (<= x (* 2 (div x 2))))), 56756#(and (<= 44 y) (<= y 44) (or (<= 0 (+ x 268)) (<= (+ x 270) 0))), 56757#(and (<= 46 y) (or (<= (+ x 268) 0) (<= 0 (+ x 266))) (<= y 46)), 56758#(and (<= y 48) (or (<= (+ x 266) 0) (<= 0 (+ x 264))) (<= 48 y)), 56759#(and (<= y 50) (<= 50 y) (or (<= 0 (+ x 262)) (<= (+ x 264) 0))), 56760#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 260)) (<= (+ x 262) 0))), 56761#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= 54 y) (<= y 54)), 56762#(and (or (<= 0 (+ x 256)) (<= (+ x 258) 0)) (<= y 56) (<= 56 y)), 56763#(and (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= 58 y) (<= y 58)), 56764#(and (<= 60 y) (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= y 60)), 56765#(and (<= y 62) (or (<= 0 (+ x 250)) (<= (+ x 252) 0)) (<= 62 y)), 56766#(and (<= y 64) (<= 64 y) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 56767#(and (<= 66 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 66)), 56768#(and (<= 68 y) (or (<= 0 (+ x 244)) (<= (+ x 246) 0)) (<= y 68)), 56769#(and (<= 70 y) (<= y 70) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 56770#(and (<= y 72) (or (<= 0 (+ x 240)) (<= (+ x 242) 0)) (<= 72 y)), 56771#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 74) (<= 74 y)), 56772#(and (<= y 76) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= 76 y)), 56773#(and (<= y 78) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 78 y)), 56774#(and (<= y 80) (<= 80 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 56775#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= y 82) (<= 82 y)), 56776#(and (<= 84 y) (or (<= 0 (+ x 228)) (<= (+ x 230) 0)) (<= y 84)), 56777#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 56778#(and (or (<= (+ x 226) 0) (<= 0 (+ x 224))) (<= y 88) (<= 88 y)), 56779#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= y 90) (<= 90 y)), 56780#(and (<= 92 y) (<= y 92) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 56781#(and (<= 94 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 94)), 56782#(and (<= 96 y) (<= y 96) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 56783#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= y 98) (<= 98 y)), 56784#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= 100 y) (<= y 100)), 56785#(and (<= y 102) (<= 102 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 56786#(and (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 104) (<= 104 y)), 56787#(and (<= 106 y) (<= y 106) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 56788#(and (<= 108 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 108)), 56789#(and (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 110 y) (<= y 110)), 56790#(and (<= y 112) (<= 112 y) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 56791#(and (<= 114 y) (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= y 114)), 56792#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= 116 y) (<= y 116)), 56793#(and (<= y 118) (<= 118 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 56794#(and (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= y 120) (<= 120 y)), 56795#(and (<= y 122) (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= 122 y)), 56796#(and (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= y 124) (<= 124 y)), 56797#(and (<= y 126) (<= 126 y) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 56798#(and (<= 128 y) (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 128)), 56799#(and (<= y 130) (<= 130 y) (or (<= (+ x 184) 0) (<= 0 (+ x 182)))), 56800#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= y 132) (<= 132 y)), 56801#(and (<= 134 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 134)), 56802#(and (<= 136 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 136)), 56803#(and (<= 138 y) (or (<= (+ x 176) 0) (<= 0 (+ x 174))) (<= y 138)), 56804#(and (<= 140 y) (<= y 140) (or (<= (+ x 174) 0) (<= 0 (+ x 172)))), 56805#(and (<= 142 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0)) (<= y 142)), 56806#(and (<= y 144) (<= 144 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 56807#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= y 146) (<= 146 y)), 56808#(and (<= 148 y) (<= y 148) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 56809#(and (<= y 150) (<= 150 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 56810#(and (<= y 152) (<= 152 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 56811#(and (<= y 154) (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 154 y)), 56812#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= 156 y) (<= y 156)), 56813#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= y 158) (<= 158 y)), 56814#(and (<= 160 y) (<= y 160) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 56815#(and (<= y 162) (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 162 y)), 56816#(and (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 164 y) (<= y 164)), 56817#(and (<= y 166) (<= 166 y) (or (<= 0 (+ x 146)) (<= (+ x 148) 0))), 56818#(and (<= y 168) (<= 168 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 56819#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= y 170) (<= 170 y)), 56820#(and (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= 172 y) (<= y 172)), 56821#(and (<= 174 y) (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 174)), 56822#(and (or (<= 0 (+ x 136)) (<= (+ x 138) 0)) (<= y 176) (<= 176 y)), 56823#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0))), 56824#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 180 y) (<= y 180)), 56825#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= 182 y) (<= y 182)), 56826#(and (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 184) (<= 184 y)), 56827#(and (<= 186 y) (<= y 186) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 56828#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= y 188) (<= 188 y)), 56829#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 190 y) (<= y 190)), 56830#(and (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 192 y) (<= y 192)), 56831#(and (<= y 194) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= 194 y))] [2018-07-23 13:54:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10878 backedges. 0 proven. 10878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:54,239 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:54:54,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:54:54,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=22053, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:54,240 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 150 states. [2018-07-23 13:54:56,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:56,678 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-07-23 13:54:56,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:54:56,679 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 149 [2018-07-23 13:54:56,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:56,679 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:54:56,679 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:54:56,680 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=297, Invalid=22053, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:54:56,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:54:56,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:54:56,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:54:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-07-23 13:54:56,873 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 149 [2018-07-23 13:54:56,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:56,873 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-07-23 13:54:56,873 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:54:56,873 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-07-23 13:54:56,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:54:56,874 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:56,874 INFO L357 BasicCegarLoop]: trace histogram [148, 1, 1] [2018-07-23 13:54:56,874 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:56,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1520739399, now seen corresponding path program 148 times [2018-07-23 13:54:56,874 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,034 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:54:59,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,035 INFO L185 omatonBuilderFactory]: Interpolants [57600#(and (or (<= 0 (+ x 94)) (<= (+ x 96) 0)) (<= 220 y) (<= y 220)), 57601#(and (<= y 222) (<= 222 y) (or (<= (+ x 94) 0) (<= 0 (+ x 92)))), 57602#(and (or (<= (+ x 92) 0) (<= 0 (+ x 90))) (<= 224 y) (<= y 224)), 57603#(and (or (<= 0 (+ x 88)) (<= (+ x 90) 0)) (<= 226 y) (<= y 226)), 57604#(and (or (<= 0 (+ x 86)) (<= (+ x 88) 0)) (<= y 228) (<= 228 y)), 57605#(and (<= 230 y) (<= y 230) (or (<= 0 (+ x 84)) (<= (+ x 86) 0))), 57606#(and (<= 232 y) (<= y 232) (or (<= 0 (+ x 82)) (<= (+ x 84) 0))), 57607#(and (or (<= (+ x 82) 0) (<= 0 (+ x 80))) (<= 234 y) (<= y 234)), 57608#(and (<= 236 y) (<= y 236) (or (<= 0 (+ x 78)) (<= (+ x 80) 0))), 57609#(and (<= y 238) (<= 238 y) (or (<= 0 (+ x 76)) (<= (+ x 78) 0))), 57610#(and (<= y 240) (<= 240 y) (or (<= (+ x 76) 0) (<= 0 (+ x 74)))), 57611#(and (<= 242 y) (or (<= 0 (+ x 72)) (<= (+ x 74) 0)) (<= y 242)), 57612#(and (or (<= (+ x 72) 0) (<= 0 (+ x 70))) (<= y 244) (<= 244 y)), 57613#(and (<= 246 y) (or (<= (+ x 70) 0) (<= 0 (+ x 68))) (<= y 246)), 57614#(and (or (<= (+ x 68) 0) (<= 0 (+ x 66))) (<= y 248) (<= 248 y)), 57615#(and (or (<= 0 (+ x 64)) (<= (+ x 66) 0)) (<= y 250) (<= 250 y)), 57616#(and (<= y 252) (or (<= (+ x 64) 0) (<= 0 (+ x 62))) (<= 252 y)), 57617#(and (or (<= (+ x 62) 0) (<= 0 (+ x 60))) (<= 254 y) (<= y 254)), 57618#(and (or (<= 0 (+ x 58)) (<= (+ x 60) 0)) (<= y 256) (<= 256 y)), 57619#(and (<= y 258) (or (<= (+ x 58) 0) (<= 0 (+ x 56))) (<= 258 y)), 57620#(and (<= y 260) (or (<= (+ x 56) 0) (<= 0 (+ x 54))) (<= 260 y)), 57621#(and (or (<= (+ x 54) 0) (<= 0 (+ x 52))) (<= 262 y) (<= y 262)), 57622#(and (<= y 264) (or (<= (+ x 52) 0) (<= 0 (+ x 50))) (<= 264 y)), 57623#(and (<= y 266) (or (<= (+ x 50) 0) (<= 0 (+ x 48))) (<= 266 y)), 57624#(and (or (<= (+ x 48) 0) (<= 0 (+ x 46))) (<= y 268) (<= 268 y)), 57625#(and (<= y 270) (or (<= 0 (+ x 44)) (<= (+ x 46) 0)) (<= 270 y)), 57626#(and (<= y 272) (<= 272 y) (or (<= (+ x 44) 0) (<= 0 (+ x 42)))), 57627#(and (<= 274 y) (or (<= 0 (+ x 40)) (<= (+ x 42) 0)) (<= y 274)), 57628#(and (or (<= (+ x 40) 0) (<= 0 (+ x 38))) (<= y 276) (<= 276 y)), 57629#(and (<= 278 y) (or (<= 0 (+ x 36)) (<= (+ x 38) 0)) (<= y 278)), 57630#(and (<= y 280) (<= 280 y) (or (<= 0 (+ x 34)) (<= (+ x 36) 0))), 57631#(and (<= y 282) (or (<= (+ x 34) 0) (<= 0 (+ x 32))) (<= 282 y)), 57632#(and (or (<= (+ x 32) 0) (<= 0 (+ x 30))) (<= y 284) (<= 284 y)), 57633#(and (or (<= (+ x 30) 0) (<= 0 (+ x 28))) (<= 286 y) (<= y 286)), 57634#(and (<= 288 y) (or (<= 0 (+ x 26)) (<= (+ x 28) 0)) (<= y 288)), 57635#(and (<= 290 y) (or (<= 0 (+ x 24)) (<= (+ x 26) 0)) (<= y 290)), 57636#(and (<= 292 y) (or (<= (+ x 24) 0) (<= 0 (+ x 22))) (<= y 292)), 57637#(and (<= 294 y) (<= y 294) (or (<= 0 (+ x 20)) (<= (+ x 22) 0))), 57638#(and (<= y 296) (<= 296 y) (or (<= (+ x 20) 0) (<= 0 (+ x 18)))), 57639#(and (or (<= (+ x 18) 0) (<= 0 (+ x 16))) (<= y 298) (<= 298 y)), 57640#(and (<= 300 y) (<= y 300) (or (<= (+ x 16) 0) (<= 0 (+ x 14)))), 57641#(and (or (<= 0 (+ x 12)) (<= (+ x 14) 0)) (<= 302 y) (<= y 302)), 57642#(and (or (<= 0 (+ x 10)) (<= (+ x 12) 0)) (<= 304 y) (<= y 304)), 57643#(and (<= y 306) (<= 306 y) (or (<= 0 (+ x 8)) (<= (+ x 10) 0))), 57644#(and (<= y 308) (or (<= 0 (+ x 6)) (<= (+ x 8) 0)) (<= 308 y)), 57645#(and (or (<= (+ x 6) 0) (<= 0 (+ x 4))) (<= 310 y) (<= y 310)), 57646#(and (or (<= (+ x 4) 0) (<= 0 (+ x 2))) (<= y 312) (<= 312 y)), 57647#(and (<= y 314) (<= 314 y) (or (<= (+ x 2) 0) (<= 0 x))), 57648#(and (<= y 316) (<= 316 y) (or (<= 2 x) (<= x 0))), 57649#(and (<= 318 y) (or (<= 4 x) (<= x 2)) (<= y 318)), 57650#(and (or (<= x 4) (<= 6 x)) (<= 320 y) (<= y 320)), 57651#(and (<= 322 y) (<= y 322) (or (<= 8 x) (<= x 6))), 57652#(and (<= y 324) (or (<= x 8) (<= 10 x)) (<= 324 y)), 57653#(and (or (<= 12 x) (<= x 10)) (<= y 326) (<= 326 y)), 57654#(and (<= 328 y) (<= y 328) (or (<= 14 x) (<= x 12))), 57655#(and (<= y 330) (<= 330 y) (or (<= x 14) (<= 16 x))), 57656#(and (or (<= 18 x) (<= x 16)) (<= y 332) (<= 332 y)), 57657#(and (or (<= 20 x) (<= x 18)) (<= 334 y) (<= y 334)), 57658#(and (or (<= 22 x) (<= x 20)) (<= 336 y) (<= y 336)), 57659#(and (or (<= 24 x) (<= x 22)) (<= y 338) (<= 338 y)), 57509#true, 57510#false, 57511#(and (<= y 42) (<= 42 y) (or (< 0 (+ (div x 2) 137)) (<= x (* 2 (div x 2))))), 57512#(and (<= 44 y) (<= y 44) (or (<= (+ x 272) 0) (<= 0 (+ x 270)))), 57513#(and (<= 46 y) (or (<= 0 (+ x 268)) (<= (+ x 270) 0)) (<= y 46)), 57514#(and (<= y 48) (<= 48 y) (or (<= (+ x 268) 0) (<= 0 (+ x 266)))), 57515#(and (<= y 50) (or (<= (+ x 266) 0) (<= 0 (+ x 264))) (<= 50 y)), 57516#(and (<= 52 y) (<= y 52) (or (<= 0 (+ x 262)) (<= (+ x 264) 0))), 57517#(and (<= 54 y) (or (<= 0 (+ x 260)) (<= (+ x 262) 0)) (<= y 54)), 57518#(and (or (<= 0 (+ x 258)) (<= (+ x 260) 0)) (<= y 56) (<= 56 y)), 57519#(and (<= 58 y) (<= y 58) (or (<= 0 (+ x 256)) (<= (+ x 258) 0))), 57520#(and (<= 60 y) (or (<= 0 (+ x 254)) (<= (+ x 256) 0)) (<= y 60)), 57521#(and (or (<= (+ x 254) 0) (<= 0 (+ x 252))) (<= y 62) (<= 62 y)), 57522#(and (<= y 64) (<= 64 y) (or (<= 0 (+ x 250)) (<= (+ x 252) 0))), 57523#(and (<= 66 y) (<= y 66) (or (<= (+ x 250) 0) (<= 0 (+ x 248)))), 57524#(and (<= 68 y) (or (<= 0 (+ x 246)) (<= (+ x 248) 0)) (<= y 68)), 57525#(and (<= 70 y) (<= y 70) (or (<= 0 (+ x 244)) (<= (+ x 246) 0))), 57526#(and (<= y 72) (<= 72 y) (or (<= (+ x 244) 0) (<= 0 (+ x 242)))), 57527#(and (<= y 74) (<= 74 y) (or (<= 0 (+ x 240)) (<= (+ x 242) 0))), 57528#(and (or (<= 0 (+ x 238)) (<= (+ x 240) 0)) (<= y 76) (<= 76 y)), 57529#(and (<= y 78) (or (<= (+ x 238) 0) (<= 0 (+ x 236))) (<= 78 y)), 57530#(and (<= y 80) (or (<= (+ x 236) 0) (<= 0 (+ x 234))) (<= 80 y)), 57531#(and (<= y 82) (<= 82 y) (or (<= 0 (+ x 232)) (<= (+ x 234) 0))), 57532#(and (or (<= 0 (+ x 230)) (<= (+ x 232) 0)) (<= 84 y) (<= y 84)), 57533#(and (<= 86 y) (<= y 86) (or (<= 0 (+ x 228)) (<= (+ x 230) 0))), 57534#(and (<= y 88) (<= 88 y) (or (<= 0 (+ x 226)) (<= (+ x 228) 0))), 57535#(and (<= y 90) (<= 90 y) (or (<= (+ x 226) 0) (<= 0 (+ x 224)))), 57536#(and (or (<= 0 (+ x 222)) (<= (+ x 224) 0)) (<= 92 y) (<= y 92)), 57537#(and (<= 94 y) (<= y 94) (or (<= 0 (+ x 220)) (<= (+ x 222) 0))), 57538#(and (<= 96 y) (or (<= 0 (+ x 218)) (<= (+ x 220) 0)) (<= y 96)), 57539#(and (<= y 98) (<= 98 y) (or (<= (+ x 218) 0) (<= 0 (+ x 216)))), 57540#(and (or (<= 0 (+ x 214)) (<= (+ x 216) 0)) (<= 100 y) (<= y 100)), 57541#(and (or (<= 0 (+ x 212)) (<= (+ x 214) 0)) (<= y 102) (<= 102 y)), 57542#(and (<= y 104) (<= 104 y) (or (<= (+ x 212) 0) (<= 0 (+ x 210)))), 57543#(and (<= 106 y) (or (<= (+ x 210) 0) (<= 0 (+ x 208))) (<= y 106)), 57544#(and (<= 108 y) (<= y 108) (or (<= 0 (+ x 206)) (<= (+ x 208) 0))), 57545#(and (<= 110 y) (or (<= (+ x 206) 0) (<= 0 (+ x 204))) (<= y 110)), 57546#(and (<= y 112) (or (<= 0 (+ x 202)) (<= (+ x 204) 0)) (<= 112 y)), 57547#(and (<= 114 y) (<= y 114) (or (<= 0 (+ x 200)) (<= (+ x 202) 0))), 57548#(and (or (<= 0 (+ x 198)) (<= (+ x 200) 0)) (<= 116 y) (<= y 116)), 57549#(and (or (<= (+ x 198) 0) (<= 0 (+ x 196))) (<= y 118) (<= 118 y)), 57550#(and (<= y 120) (<= 120 y) (or (<= 0 (+ x 194)) (<= (+ x 196) 0))), 57551#(and (<= y 122) (or (<= (+ x 194) 0) (<= 0 (+ x 192))) (<= 122 y)), 57552#(and (or (<= 0 (+ x 190)) (<= (+ x 192) 0)) (<= y 124) (<= 124 y)), 57553#(and (<= y 126) (or (<= 0 (+ x 188)) (<= (+ x 190) 0)) (<= 126 y)), 57554#(and (<= 128 y) (<= y 128) (or (<= 0 (+ x 186)) (<= (+ x 188) 0))), 57555#(and (or (<= (+ x 186) 0) (<= 0 (+ x 184))) (<= y 130) (<= 130 y)), 57556#(and (or (<= (+ x 184) 0) (<= 0 (+ x 182))) (<= y 132) (<= 132 y)), 57557#(and (or (<= 0 (+ x 180)) (<= (+ x 182) 0)) (<= 134 y) (<= y 134)), 57558#(and (<= 136 y) (or (<= 0 (+ x 178)) (<= (+ x 180) 0)) (<= y 136)), 57559#(and (<= 138 y) (or (<= 0 (+ x 176)) (<= (+ x 178) 0)) (<= y 138)), 57560#(and (<= 140 y) (<= y 140) (or (<= (+ x 176) 0) (<= 0 (+ x 174)))), 57561#(and (<= 142 y) (or (<= (+ x 174) 0) (<= 0 (+ x 172))) (<= y 142)), 57562#(and (<= y 144) (<= 144 y) (or (<= 0 (+ x 170)) (<= (+ x 172) 0))), 57563#(and (<= y 146) (<= 146 y) (or (<= (+ x 170) 0) (<= 0 (+ x 168)))), 57564#(and (or (<= (+ x 168) 0) (<= 0 (+ x 166))) (<= 148 y) (<= y 148)), 57565#(and (<= y 150) (<= 150 y) (or (<= (+ x 166) 0) (<= 0 (+ x 164)))), 57566#(and (<= y 152) (<= 152 y) (or (<= 0 (+ x 162)) (<= (+ x 164) 0))), 57567#(and (<= y 154) (<= 154 y) (or (<= (+ x 162) 0) (<= 0 (+ x 160)))), 57568#(and (or (<= (+ x 160) 0) (<= 0 (+ x 158))) (<= 156 y) (<= y 156)), 57569#(and (or (<= 0 (+ x 156)) (<= (+ x 158) 0)) (<= y 158) (<= 158 y)), 57570#(and (or (<= (+ x 156) 0) (<= 0 (+ x 154))) (<= 160 y) (<= y 160)), 57571#(and (<= y 162) (<= 162 y) (or (<= (+ x 154) 0) (<= 0 (+ x 152)))), 57572#(and (or (<= 0 (+ x 150)) (<= (+ x 152) 0)) (<= 164 y) (<= y 164)), 57573#(and (<= y 166) (or (<= (+ x 150) 0) (<= 0 (+ x 148))) (<= 166 y)), 57574#(and (<= y 168) (or (<= 0 (+ x 146)) (<= (+ x 148) 0)) (<= 168 y)), 57575#(and (<= y 170) (<= 170 y) (or (<= 0 (+ x 144)) (<= (+ x 146) 0))), 57576#(and (or (<= 0 (+ x 142)) (<= (+ x 144) 0)) (<= 172 y) (<= y 172)), 57577#(and (<= 174 y) (or (<= 0 (+ x 140)) (<= (+ x 142) 0)) (<= y 174)), 57578#(and (or (<= (+ x 140) 0) (<= 0 (+ x 138))) (<= y 176) (<= 176 y)), 57579#(and (<= y 178) (<= 178 y) (or (<= 0 (+ x 136)) (<= (+ x 138) 0))), 57580#(and (<= 180 y) (or (<= 0 (+ x 134)) (<= (+ x 136) 0)) (<= y 180)), 57581#(and (or (<= 0 (+ x 132)) (<= (+ x 134) 0)) (<= 182 y) (<= y 182)), 57582#(and (or (<= (+ x 132) 0) (<= 0 (+ x 130))) (<= y 184) (<= 184 y)), 57583#(and (<= 186 y) (or (<= 0 (+ x 128)) (<= (+ x 130) 0)) (<= y 186)), 57584#(and (<= y 188) (<= 188 y) (or (<= (+ x 128) 0) (<= 0 (+ x 126)))), 57585#(and (or (<= 0 (+ x 124)) (<= (+ x 126) 0)) (<= 190 y) (<= y 190)), 57586#(and (or (<= 0 (+ x 122)) (<= (+ x 124) 0)) (<= 192 y) (<= y 192)), 57587#(and (<= y 194) (or (<= (+ x 122) 0) (<= 0 (+ x 120))) (<= 194 y)), 57588#(and (<= y 196) (or (<= (+ x 120) 0) (<= 0 (+ x 118))) (<= 196 y)), 57589#(and (<= 198 y) (<= y 198) (or (<= (+ x 118) 0) (<= 0 (+ x 116)))), 57590#(and (<= 200 y) (or (<= (+ x 116) 0) (<= 0 (+ x 114))) (<= y 200)), 57591#(and (<= y 202) (<= 202 y) (or (<= (+ x 114) 0) (<= 0 (+ x 112)))), 57592#(and (or (<= 0 (+ x 110)) (<= (+ x 112) 0)) (<= 204 y) (<= y 204)), 57593#(and (or (<= (+ x 110) 0) (<= 0 (+ x 108))) (<= y 206) (<= 206 y)), 57594#(and (or (<= 0 (+ x 106)) (<= (+ x 108) 0)) (<= 208 y) (<= y 208)), 57595#(and (<= 210 y) (or (<= 0 (+ x 104)) (<= (+ x 106) 0)) (<= y 210)), 57596#(and (<= 212 y) (or (<= 0 (+ x 102)) (<= (+ x 104) 0)) (<= y 212)), 57597#(and (<= y 214) (or (<= (+ x 102) 0) (<= 0 (+ x 100))) (<= 214 y)), 57598#(and (or (<= (+ x 100) 0) (<= 0 (+ x 98))) (<= y 216) (<= 216 y)), 57599#(and (<= y 218) (or (<= (+ x 98) 0) (<= 0 (+ x 96))) (<= 218 y))] [2018-07-23 13:54:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 11026 backedges. 0 proven. 11026 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:54:59,036 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:54:59,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:54:59,037 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 151 states. [2018-07-23 13:55:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,550 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:55:01,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:55:01,550 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 150 [2018-07-23 13:55:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,551 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:55:01,551 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:55:01,551 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:55:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:55:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:55:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:55:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:55:01,744 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 150 [2018-07-23 13:55:01,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,745 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:55:01,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:55:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:55:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:55:01,745 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,745 INFO L357 BasicCegarLoop]: trace histogram [149, 1, 1] [2018-07-23 13:55:01,746 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,746 INFO L82 PathProgramCache]: Analyzing trace with hash -101718943, now seen corresponding path program 149 times [2018-07-23 13:55:01,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-23 13:55:02,272 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:55:02,281 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:55:02,281 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:55:02 BoogieIcfgContainer [2018-07-23 13:55:02,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:55:02,283 INFO L168 Benchmark]: Toolchain (without parser) took 258262.09 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -442.8 MB). Peak memory consumption was 779.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:02,285 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:55:02,286 INFO L168 Benchmark]: Boogie Preprocessor took 50.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:55:02,286 INFO L168 Benchmark]: RCFGBuilder took 237.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:02,286 INFO L168 Benchmark]: TraceAbstraction took 257968.23 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -453.4 MB). Peak memory consumption was 768.7 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:02,289 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 237.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 257968.23 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -453.4 MB). Peak memory consumption was 768.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 18). Cancelled while BasicCegarLoop was analyzing trace of length 152 with TraceHistMax 149, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. TIMEOUT Result, 257.8s OverallTime, 150 OverallIterations, 149 TraceHistogramMax, 128.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 298 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1136127 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11175 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.7s Time, 0.2s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/551300 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.2s AutomataMinimizationTime, 149 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 108.1s InterpolantComputationTime, 11324 NumberOfCodeBlocks, 11324 NumberOfCodeBlocksAsserted, 149 NumberOfCheckSat, 11175 ConstructedInterpolants, 0 QuantifiedInterpolants, 19535382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 149 InterpolantComputations, 1 PerfectInterpolantSequences, 0/551300 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-55-02-301.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/DivisibilityInterpolantRequired03-FPBPCannibalizationSuccess.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-55-02-301.csv Completed graceful shutdown