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/HiddenEqualityWithBranches.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:51:26,470 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:51:26,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:51:26,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:51:26,488 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:51:26,490 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:51:26,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:51:26,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:51:26,496 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:51:26,497 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:51:26,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:51:26,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:51:26,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:51:26,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:51:26,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:51:26,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:51:26,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:51:26,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:51:26,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:51:26,522 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:51:26,523 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:51:26,528 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:51:26,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:51:26,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:51:26,533 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:51:26,533 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:51:26,534 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:51:26,535 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:51:26,538 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:51:26,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:51:26,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:51:26,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:51:26,545 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 13:51:26,566 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:51:26,566 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:51:26,567 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:51:26,568 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:51:26,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:51:26,568 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:51:26,568 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:51:26,569 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:51:26,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:51:26,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:51:26,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:51:26,648 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:51:26,649 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:51:26,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl [2018-07-23 13:51:26,650 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl' [2018-07-23 13:51:26,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:51:26,704 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:51:26,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:51:26,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:51:26,705 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:51:26,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:51:26,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:51:26,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:51:26,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:51:26,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/1) ... [2018-07-23 13:51:26,840 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-23 13:51:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:51:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:51:27,014 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:51:27,015 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:27 BoogieIcfgContainer [2018-07-23 13:51:27,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:51:27,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:51:27,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:51:27,020 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:51:27,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:26" (1/2) ... [2018-07-23 13:51:27,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac4e6b and model type HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:51:27, skipping insertion in model container [2018-07-23 13:51:27,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:27" (2/2) ... [2018-07-23 13:51:27,026 INFO L112 eAbstractionObserver]: Analyzing ICFG HiddenEqualityWithBranches.bpl [2018-07-23 13:51:27,038 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:51:27,051 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:51:27,098 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:51:27,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:51:27,099 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:51:27,099 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:51:27,099 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:51:27,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:51:27,099 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:51:27,100 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:51:27,100 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:51:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2018-07-23 13:51:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-23 13:51:27,120 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,121 INFO L357 BasicCegarLoop]: trace histogram [1, 1] [2018-07-23 13:51:27,121 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,127 INFO L82 PathProgramCache]: Analyzing trace with hash 979, now seen corresponding path program 1 times [2018-07-23 13:51:27,133 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,190 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 13:51:27,192 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:51:27,193 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 13:51:27,194 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,195 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 13:51:27,195 INFO L185 omatonBuilderFactory]: Interpolants [7#true, 8#false, 9#(<= main_x 0)] [2018-07-23 13:51:27,195 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 13:51:27,197 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:51:27,209 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:51:27,210 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:51:27,212 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2018-07-23 13:51:27,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,239 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 13:51:27,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:51:27,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-23 13:51:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,252 INFO L225 Difference]: With dead ends: 7 [2018-07-23 13:51:27,253 INFO L226 Difference]: Without dead ends: 4 [2018-07-23 13:51:27,256 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 13:51:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2018-07-23 13:51:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-07-23 13:51:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-07-23 13:51:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2018-07-23 13:51:27,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2018-07-23 13:51:27,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,295 INFO L471 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2018-07-23 13:51:27,296 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:51:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2018-07-23 13:51:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:51:27,296 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,297 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:51:27,297 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,297 INFO L82 PathProgramCache]: Analyzing trace with hash 30584, now seen corresponding path program 1 times [2018-07-23 13:51:27,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,317 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 13:51:27,318 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,318 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-07-23 13:51:27,318 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,319 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 13:51:27,319 INFO L185 omatonBuilderFactory]: Interpolants [32#true, 33#false, 34#(<= main_x 0), 35#(<= main_x 1)] [2018-07-23 13:51:27,319 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 13:51:27,322 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:51:27,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:51:27,322 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:51:27,323 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 4 states. [2018-07-23 13:51:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,337 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2018-07-23 13:51:27,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:51:27,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-23 13:51:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,339 INFO L225 Difference]: With dead ends: 6 [2018-07-23 13:51:27,339 INFO L226 Difference]: Without dead ends: 5 [2018-07-23 13:51:27,340 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:51:27,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-23 13:51:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-23 13:51:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-23 13:51:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-23 13:51:27,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-23 13:51:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,343 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-23 13:51:27,343 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:51:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-23 13:51:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:51:27,344 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,344 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1] [2018-07-23 13:51:27,345 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,346 INFO L82 PathProgramCache]: Analyzing trace with hash 948339, now seen corresponding path program 2 times [2018-07-23 13:51:27,346 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,396 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 13:51:27,396 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,396 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:51:27,397 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,397 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 13:51:27,397 INFO L185 omatonBuilderFactory]: Interpolants [58#true, 59#false, 60#(<= main_x 0), 61#(<= main_x 1), 62#(<= main_x 2)] [2018-07-23 13:51:27,397 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 13:51:27,398 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:51:27,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:51:27,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:51:27,399 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2018-07-23 13:51:27,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,416 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-07-23 13:51:27,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:51:27,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-23 13:51:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,417 INFO L225 Difference]: With dead ends: 7 [2018-07-23 13:51:27,418 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:51:27,418 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:51:27,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:51:27,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:51:27,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:51:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:51:27,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-07-23 13:51:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,422 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:51:27,423 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:51:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:51:27,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:51:27,424 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,424 INFO L357 BasicCegarLoop]: trace histogram [3, 1, 1] [2018-07-23 13:51:27,425 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,425 INFO L82 PathProgramCache]: Analyzing trace with hash 29398744, now seen corresponding path program 3 times [2018-07-23 13:51:27,425 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,463 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 13:51:27,464 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:51:27,464 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,464 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 13:51:27,465 INFO L185 omatonBuilderFactory]: Interpolants [89#true, 90#false, 91#(<= main_x 0), 92#(<= main_x 1), 93#(<= main_x 2), 94#(<= main_x 3)] [2018-07-23 13:51:27,465 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 13:51:27,465 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:51:27,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:51:27,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:51:27,466 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 6 states. [2018-07-23 13:51:27,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,479 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:51:27,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:51:27,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2018-07-23 13:51:27,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,480 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:51:27,480 INFO L226 Difference]: Without dead ends: 7 [2018-07-23 13:51:27,481 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:51:27,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-23 13:51:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-23 13:51:27,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:51:27,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:51:27,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-07-23 13:51:27,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,484 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:51:27,484 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:51:27,484 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:51:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:51:27,485 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,485 INFO L357 BasicCegarLoop]: trace histogram [4, 1, 1] [2018-07-23 13:51:27,485 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,486 INFO L82 PathProgramCache]: Analyzing trace with hash 911361299, now seen corresponding path program 4 times [2018-07-23 13:51:27,486 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,579 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 13:51:27,579 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,580 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:51:27,580 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,580 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 13:51:27,583 INFO L185 omatonBuilderFactory]: Interpolants [128#(<= main_x 1), 129#(<= main_x 2), 130#(<= main_x 3), 131#(<= main_x 4), 125#true, 126#false, 127#(<= main_x 0)] [2018-07-23 13:51:27,584 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 13:51:27,584 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:51:27,584 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:51:27,584 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:51:27,585 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 7 states. [2018-07-23 13:51:27,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,608 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:51:27,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:51:27,610 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2018-07-23 13:51:27,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,610 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:51:27,610 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:51:27,611 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:51:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:51:27,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:51:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:51:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:51:27,618 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-07-23 13:51:27,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,619 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:51:27,619 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:51:27,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:51:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:51:27,620 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,620 INFO L357 BasicCegarLoop]: trace histogram [5, 1, 1] [2018-07-23 13:51:27,620 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1812570568, now seen corresponding path program 5 times [2018-07-23 13:51:27,621 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,679 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 13:51:27,679 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,679 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:51:27,680 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,680 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 13:51:27,680 INFO L185 omatonBuilderFactory]: Interpolants [166#true, 167#false, 168#(<= main_x 0), 169#(<= main_x 1), 170#(<= main_x 2), 171#(<= main_x 3), 172#(<= main_x 4), 173#(<= main_x 5)] [2018-07-23 13:51:27,680 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 13:51:27,681 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:51:27,681 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:51:27,684 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:51:27,685 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 8 states. [2018-07-23 13:51:27,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,708 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-07-23 13:51:27,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:51:27,709 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2018-07-23 13:51:27,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,709 INFO L225 Difference]: With dead ends: 10 [2018-07-23 13:51:27,710 INFO L226 Difference]: Without dead ends: 9 [2018-07-23 13:51:27,710 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:51:27,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-07-23 13:51:27,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-07-23 13:51:27,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 13:51:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 13:51:27,715 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-07-23 13:51:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,716 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 13:51:27,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:51:27,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 13:51:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 13:51:27,718 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,718 INFO L357 BasicCegarLoop]: trace histogram [6, 1, 1] [2018-07-23 13:51:27,719 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash -355112525, now seen corresponding path program 6 times [2018-07-23 13:51:27,719 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,821 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 13:51:27,822 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,822 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:51:27,822 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,824 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 13:51:27,824 INFO L185 omatonBuilderFactory]: Interpolants [212#true, 213#false, 214#(<= main_x 0), 215#(<= main_x 1), 216#(<= main_x 2), 217#(<= main_x 3), 218#(<= main_x 4), 219#(<= main_x 5), 220#(<= main_x 6)] [2018-07-23 13:51:27,825 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 13:51:27,825 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:51:27,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:51:27,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:51:27,826 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2018-07-23 13:51:27,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,857 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:51:27,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:51:27,859 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-07-23 13:51:27,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,860 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:51:27,860 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:51:27,861 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:51:27,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:51:27,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:51:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:51:27,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:51:27,866 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-07-23 13:51:27,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,866 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:51:27,868 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:51:27,868 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:51:27,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:51:27,869 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,869 INFO L357 BasicCegarLoop]: trace histogram [7, 1, 1] [2018-07-23 13:51:27,869 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1876413848, now seen corresponding path program 7 times [2018-07-23 13:51:27,870 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:27,951 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 13:51:27,951 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:27,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:51:27,953 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:27,953 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 13:51:27,954 INFO L185 omatonBuilderFactory]: Interpolants [272#(<= main_x 7), 263#true, 264#false, 265#(<= main_x 0), 266#(<= main_x 1), 267#(<= main_x 2), 268#(<= main_x 3), 269#(<= main_x 4), 270#(<= main_x 5), 271#(<= main_x 6)] [2018-07-23 13:51:27,954 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 13:51:27,957 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:51:27,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:51:27,958 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:51:27,958 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 10 states. [2018-07-23 13:51:27,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:27,978 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 13:51:27,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:51:27,978 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 9 [2018-07-23 13:51:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:27,979 INFO L225 Difference]: With dead ends: 12 [2018-07-23 13:51:27,979 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 13:51:27,980 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:51:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 13:51:27,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 13:51:27,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 13:51:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 13:51:27,983 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-07-23 13:51:27,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:27,984 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 13:51:27,984 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:51:27,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 13:51:27,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 13:51:27,985 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:27,985 INFO L357 BasicCegarLoop]: trace histogram [8, 1, 1] [2018-07-23 13:51:27,985 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:27,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1960712621, now seen corresponding path program 8 times [2018-07-23 13:51:27,986 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,034 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 13:51:28,034 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:51:28,035 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,035 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 13:51:28,037 INFO L185 omatonBuilderFactory]: Interpolants [320#false, 321#(<= main_x 0), 322#(<= main_x 1), 323#(<= main_x 2), 324#(<= main_x 3), 325#(<= main_x 4), 326#(<= main_x 5), 327#(<= main_x 6), 328#(<= main_x 7), 329#(<= main_x 8), 319#true] [2018-07-23 13:51:28,038 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 13:51:28,038 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:51:28,038 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:51:28,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:51:28,039 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 11 states. [2018-07-23 13:51:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,065 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:51:28,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:51:28,066 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2018-07-23 13:51:28,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,068 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:51:28,069 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:51:28,070 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:51:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:51:28,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:51:28,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:51:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:51:28,076 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-07-23 13:51:28,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,076 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:51:28,077 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:51:28,077 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:51:28,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:51:28,077 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,077 INFO L357 BasicCegarLoop]: trace histogram [9, 1, 1] [2018-07-23 13:51:28,078 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,078 INFO L82 PathProgramCache]: Analyzing trace with hash -652548872, now seen corresponding path program 9 times [2018-07-23 13:51:28,078 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,158 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 13:51:28,158 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:51:28,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,159 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 13:51:28,159 INFO L185 omatonBuilderFactory]: Interpolants [384#(<= main_x 2), 385#(<= main_x 3), 386#(<= main_x 4), 387#(<= main_x 5), 388#(<= main_x 6), 389#(<= main_x 7), 390#(<= main_x 8), 391#(<= main_x 9), 380#true, 381#false, 382#(<= main_x 0), 383#(<= main_x 1)] [2018-07-23 13:51:28,160 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 13:51:28,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:51:28,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:51:28,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:51:28,162 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2018-07-23 13:51:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,195 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-07-23 13:51:28,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:51:28,195 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2018-07-23 13:51:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,196 INFO L225 Difference]: With dead ends: 14 [2018-07-23 13:51:28,196 INFO L226 Difference]: Without dead ends: 13 [2018-07-23 13:51:28,198 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:51:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-07-23 13:51:28,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-07-23 13:51:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-07-23 13:51:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-07-23 13:51:28,202 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-07-23 13:51:28,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,202 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-07-23 13:51:28,202 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:51:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-07-23 13:51:28,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-23 13:51:28,206 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,206 INFO L357 BasicCegarLoop]: trace histogram [10, 1, 1] [2018-07-23 13:51:28,206 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1245821683, now seen corresponding path program 10 times [2018-07-23 13:51:28,207 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,298 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 13:51:28,299 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:51:28,299 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,303 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 13:51:28,303 INFO L185 omatonBuilderFactory]: Interpolants [448#(<= main_x 0), 449#(<= main_x 1), 450#(<= main_x 2), 451#(<= main_x 3), 452#(<= main_x 4), 453#(<= main_x 5), 454#(<= main_x 6), 455#(<= main_x 7), 456#(<= main_x 8), 457#(<= main_x 9), 458#(<= main_x 10), 446#true, 447#false] [2018-07-23 13:51:28,303 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 13:51:28,304 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:51:28,304 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:51:28,304 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:51:28,305 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 13 states. [2018-07-23 13:51:28,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,332 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:51:28,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:51:28,332 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 12 [2018-07-23 13:51:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,334 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:51:28,334 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:51:28,335 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:51:28,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:51:28,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:51:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:51:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:51:28,341 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2018-07-23 13:51:28,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,342 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:51:28,342 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:51:28,342 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:51:28,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:51:28,343 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,343 INFO L357 BasicCegarLoop]: trace histogram [11, 1, 1] [2018-07-23 13:51:28,343 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash -34233256, now seen corresponding path program 11 times [2018-07-23 13:51:28,344 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,428 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 13:51:28,429 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,429 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:51:28,429 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,430 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 13:51:28,430 INFO L185 omatonBuilderFactory]: Interpolants [517#true, 518#false, 519#(<= main_x 0), 520#(<= main_x 1), 521#(<= main_x 2), 522#(<= main_x 3), 523#(<= main_x 4), 524#(<= main_x 5), 525#(<= main_x 6), 526#(<= main_x 7), 527#(<= main_x 8), 528#(<= main_x 9), 529#(<= main_x 10), 530#(<= main_x 11)] [2018-07-23 13:51:28,430 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 13:51:28,431 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:51:28,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:51:28,431 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:51:28,432 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2018-07-23 13:51:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,443 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-07-23 13:51:28,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:51:28,443 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2018-07-23 13:51:28,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,444 INFO L225 Difference]: With dead ends: 16 [2018-07-23 13:51:28,444 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 13:51:28,445 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:51:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 13:51:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-07-23 13:51:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 13:51:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 13:51:28,449 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2018-07-23 13:51:28,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,449 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 13:51:28,449 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:51:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 13:51:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 13:51:28,450 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,450 INFO L357 BasicCegarLoop]: trace histogram [12, 1, 1] [2018-07-23 13:51:28,450 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1061230701, now seen corresponding path program 12 times [2018-07-23 13:51:28,451 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,508 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 13:51:28,508 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,508 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:51:28,509 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,509 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 13:51:28,509 INFO L185 omatonBuilderFactory]: Interpolants [593#true, 594#false, 595#(<= main_x 0), 596#(<= main_x 1), 597#(<= main_x 2), 598#(<= main_x 3), 599#(<= main_x 4), 600#(<= main_x 5), 601#(<= main_x 6), 602#(<= main_x 7), 603#(<= main_x 8), 604#(<= main_x 9), 605#(<= main_x 10), 606#(<= main_x 11), 607#(<= main_x 12)] [2018-07-23 13:51:28,510 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 13:51:28,510 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:51:28,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:51:28,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:51:28,511 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 15 states. [2018-07-23 13:51:28,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,524 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:51:28,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:51:28,524 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 14 [2018-07-23 13:51:28,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,525 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:51:28,525 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:51:28,526 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:51:28,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:51:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:51:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:51:28,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:51:28,531 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-07-23 13:51:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,531 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:51:28,532 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:51:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:51:28,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:51:28,532 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,533 INFO L357 BasicCegarLoop]: trace histogram [13, 1, 1] [2018-07-23 13:51:28,533 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1461586872, now seen corresponding path program 13 times [2018-07-23 13:51:28,533 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,631 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 13:51:28,632 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,633 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:51:28,633 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,633 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 13:51:28,634 INFO L185 omatonBuilderFactory]: Interpolants [674#true, 675#false, 676#(<= main_x 0), 677#(<= main_x 1), 678#(<= main_x 2), 679#(<= main_x 3), 680#(<= main_x 4), 681#(<= main_x 5), 682#(<= main_x 6), 683#(<= main_x 7), 684#(<= main_x 8), 685#(<= main_x 9), 686#(<= main_x 10), 687#(<= main_x 11), 688#(<= main_x 12), 689#(<= main_x 13)] [2018-07-23 13:51:28,634 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 13:51:28,635 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:51:28,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:51:28,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:51:28,637 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2018-07-23 13:51:28,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,654 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 13:51:28,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:51:28,655 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2018-07-23 13:51:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,655 INFO L225 Difference]: With dead ends: 18 [2018-07-23 13:51:28,656 INFO L226 Difference]: Without dead ends: 17 [2018-07-23 13:51:28,656 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:51:28,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-07-23 13:51:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-07-23 13:51:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-07-23 13:51:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-07-23 13:51:28,666 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 15 [2018-07-23 13:51:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,667 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-07-23 13:51:28,667 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:51:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-07-23 13:51:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-23 13:51:28,668 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,668 INFO L357 BasicCegarLoop]: trace histogram [14, 1, 1] [2018-07-23 13:51:28,668 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1935446989, now seen corresponding path program 14 times [2018-07-23 13:51:28,669 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,766 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 13:51:28,767 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,767 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:51:28,767 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,768 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 13:51:28,768 INFO L185 omatonBuilderFactory]: Interpolants [768#(<= main_x 6), 769#(<= main_x 7), 770#(<= main_x 8), 771#(<= main_x 9), 772#(<= main_x 10), 773#(<= main_x 11), 774#(<= main_x 12), 775#(<= main_x 13), 776#(<= main_x 14), 760#true, 761#false, 762#(<= main_x 0), 763#(<= main_x 1), 764#(<= main_x 2), 765#(<= main_x 3), 766#(<= main_x 4), 767#(<= main_x 5)] [2018-07-23 13:51:28,769 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 13:51:28,769 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:51:28,769 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:51:28,770 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:51:28,770 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 17 states. [2018-07-23 13:51:28,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,784 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:51:28,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:51:28,785 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 16 [2018-07-23 13:51:28,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,786 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:51:28,786 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:51:28,787 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:51:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:51:28,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:51:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:51:28,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:51:28,791 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2018-07-23 13:51:28,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,791 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:51:28,792 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:51:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:51:28,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:51:28,792 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,793 INFO L357 BasicCegarLoop]: trace histogram [15, 1, 1] [2018-07-23 13:51:28,793 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,793 INFO L82 PathProgramCache]: Analyzing trace with hash 130685720, now seen corresponding path program 15 times [2018-07-23 13:51:28,793 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,867 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 13:51:28,867 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,867 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:51:28,868 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,868 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 13:51:28,872 INFO L185 omatonBuilderFactory]: Interpolants [864#(<= main_x 11), 865#(<= main_x 12), 866#(<= main_x 13), 867#(<= main_x 14), 868#(<= main_x 15), 851#true, 852#false, 853#(<= main_x 0), 854#(<= main_x 1), 855#(<= main_x 2), 856#(<= main_x 3), 857#(<= main_x 4), 858#(<= main_x 5), 859#(<= main_x 6), 860#(<= main_x 7), 861#(<= main_x 8), 862#(<= main_x 9), 863#(<= main_x 10)] [2018-07-23 13:51:28,872 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 13:51:28,872 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:51:28,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:51:28,873 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:51:28,873 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 18 states. [2018-07-23 13:51:28,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,890 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2018-07-23 13:51:28,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:51:28,891 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 17 [2018-07-23 13:51:28,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,896 INFO L225 Difference]: With dead ends: 20 [2018-07-23 13:51:28,897 INFO L226 Difference]: Without dead ends: 19 [2018-07-23 13:51:28,898 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:51:28,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-07-23 13:51:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-07-23 13:51:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 13:51:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 13:51:28,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2018-07-23 13:51:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:28,902 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 13:51:28,905 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:51:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 13:51:28,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 13:51:28,905 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:28,906 INFO L357 BasicCegarLoop]: trace histogram [16, 1, 1] [2018-07-23 13:51:28,906 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:28,906 INFO L82 PathProgramCache]: Analyzing trace with hash -243709741, now seen corresponding path program 16 times [2018-07-23 13:51:28,906 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:28,981 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 13:51:28,981 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:28,982 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:51:28,982 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:28,982 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 13:51:28,983 INFO L185 omatonBuilderFactory]: Interpolants [960#(<= main_x 11), 961#(<= main_x 12), 962#(<= main_x 13), 963#(<= main_x 14), 964#(<= main_x 15), 965#(<= main_x 16), 947#true, 948#false, 949#(<= main_x 0), 950#(<= main_x 1), 951#(<= main_x 2), 952#(<= main_x 3), 953#(<= main_x 4), 954#(<= main_x 5), 955#(<= main_x 6), 956#(<= main_x 7), 957#(<= main_x 8), 958#(<= main_x 9), 959#(<= main_x 10)] [2018-07-23 13:51:28,983 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 13:51:28,983 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:51:28,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:51:28,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:51:28,984 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 19 states. [2018-07-23 13:51:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:28,998 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:51:28,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:51:28,999 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 18 [2018-07-23 13:51:28,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:28,999 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:51:29,000 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:51:29,000 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:51:29,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:51:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:51:29,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:51:29,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:51:29,006 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 18 [2018-07-23 13:51:29,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,006 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:51:29,006 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:51:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:51:29,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:51:29,010 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,010 INFO L357 BasicCegarLoop]: trace histogram [17, 1, 1] [2018-07-23 13:51:29,011 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1034932856, now seen corresponding path program 17 times [2018-07-23 13:51:29,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,086 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 13:51:29,086 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,087 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:51:29,087 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,087 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 13:51:29,088 INFO L185 omatonBuilderFactory]: Interpolants [1056#(<= main_x 6), 1057#(<= main_x 7), 1058#(<= main_x 8), 1059#(<= main_x 9), 1060#(<= main_x 10), 1061#(<= main_x 11), 1062#(<= main_x 12), 1063#(<= main_x 13), 1064#(<= main_x 14), 1065#(<= main_x 15), 1066#(<= main_x 16), 1067#(<= main_x 17), 1048#true, 1049#false, 1050#(<= main_x 0), 1051#(<= main_x 1), 1052#(<= main_x 2), 1053#(<= main_x 3), 1054#(<= main_x 4), 1055#(<= main_x 5)] [2018-07-23 13:51:29,088 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 13:51:29,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:51:29,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:51:29,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:51:29,091 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 20 states. [2018-07-23 13:51:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,107 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-07-23 13:51:29,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:51:29,107 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 19 [2018-07-23 13:51:29,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,108 INFO L225 Difference]: With dead ends: 22 [2018-07-23 13:51:29,108 INFO L226 Difference]: Without dead ends: 21 [2018-07-23 13:51:29,109 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:51:29,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-07-23 13:51:29,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-07-23 13:51:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-07-23 13:51:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2018-07-23 13:51:29,115 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 19 [2018-07-23 13:51:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,115 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2018-07-23 13:51:29,115 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:51:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2018-07-23 13:51:29,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-23 13:51:29,116 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,116 INFO L357 BasicCegarLoop]: trace histogram [18, 1, 1] [2018-07-23 13:51:29,117 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,117 INFO L82 PathProgramCache]: Analyzing trace with hash 2018147699, now seen corresponding path program 18 times [2018-07-23 13:51:29,118 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,223 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 13:51:29,223 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,224 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:51:29,225 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,225 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 13:51:29,225 INFO L185 omatonBuilderFactory]: Interpolants [1154#true, 1155#false, 1156#(<= main_x 0), 1157#(<= main_x 1), 1158#(<= main_x 2), 1159#(<= main_x 3), 1160#(<= main_x 4), 1161#(<= main_x 5), 1162#(<= main_x 6), 1163#(<= main_x 7), 1164#(<= main_x 8), 1165#(<= main_x 9), 1166#(<= main_x 10), 1167#(<= main_x 11), 1168#(<= main_x 12), 1169#(<= main_x 13), 1170#(<= main_x 14), 1171#(<= main_x 15), 1172#(<= main_x 16), 1173#(<= main_x 17), 1174#(<= main_x 18)] [2018-07-23 13:51:29,226 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 13:51:29,226 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:51:29,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:51:29,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:51:29,227 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 21 states. [2018-07-23 13:51:29,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,246 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:51:29,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:51:29,247 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 20 [2018-07-23 13:51:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,248 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:51:29,248 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:51:29,248 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:51:29,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:51:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:51:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:51:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:51:29,256 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 20 [2018-07-23 13:51:29,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,257 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:51:29,257 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:51:29,257 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:51:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:51:29,261 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,261 INFO L357 BasicCegarLoop]: trace histogram [19, 1, 1] [2018-07-23 13:51:29,261 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1861930536, now seen corresponding path program 19 times [2018-07-23 13:51:29,262 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,370 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 13:51:29,371 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,371 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:51:29,371 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,371 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 13:51:29,372 INFO L185 omatonBuilderFactory]: Interpolants [1280#(<= main_x 13), 1281#(<= main_x 14), 1282#(<= main_x 15), 1283#(<= main_x 16), 1284#(<= main_x 17), 1285#(<= main_x 18), 1286#(<= main_x 19), 1265#true, 1266#false, 1267#(<= main_x 0), 1268#(<= main_x 1), 1269#(<= main_x 2), 1270#(<= main_x 3), 1271#(<= main_x 4), 1272#(<= main_x 5), 1273#(<= main_x 6), 1274#(<= main_x 7), 1275#(<= main_x 8), 1276#(<= main_x 9), 1277#(<= main_x 10), 1278#(<= main_x 11), 1279#(<= main_x 12)] [2018-07-23 13:51:29,379 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 13:51:29,379 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:51:29,379 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:51:29,380 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:51:29,380 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 22 states. [2018-07-23 13:51:29,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,403 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 13:51:29,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:51:29,404 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 21 [2018-07-23 13:51:29,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,405 INFO L225 Difference]: With dead ends: 24 [2018-07-23 13:51:29,405 INFO L226 Difference]: Without dead ends: 23 [2018-07-23 13:51:29,405 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:51:29,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-07-23 13:51:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-07-23 13:51:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-07-23 13:51:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-07-23 13:51:29,413 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 21 [2018-07-23 13:51:29,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,413 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-07-23 13:51:29,414 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:51:29,414 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-07-23 13:51:29,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-07-23 13:51:29,414 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,415 INFO L357 BasicCegarLoop]: trace histogram [20, 1, 1] [2018-07-23 13:51:29,415 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1885271533, now seen corresponding path program 20 times [2018-07-23 13:51:29,415 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,511 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 13:51:29,511 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,511 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:51:29,512 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,512 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 13:51:29,513 INFO L185 omatonBuilderFactory]: Interpolants [1381#true, 1382#false, 1383#(<= main_x 0), 1384#(<= main_x 1), 1385#(<= main_x 2), 1386#(<= main_x 3), 1387#(<= main_x 4), 1388#(<= main_x 5), 1389#(<= main_x 6), 1390#(<= main_x 7), 1391#(<= main_x 8), 1392#(<= main_x 9), 1393#(<= main_x 10), 1394#(<= main_x 11), 1395#(<= main_x 12), 1396#(<= main_x 13), 1397#(<= main_x 14), 1398#(<= main_x 15), 1399#(<= main_x 16), 1400#(<= main_x 17), 1401#(<= main_x 18), 1402#(<= main_x 19), 1403#(<= main_x 20)] [2018-07-23 13:51:29,513 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 13:51:29,513 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:51:29,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:51:29,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:51:29,514 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 23 states. [2018-07-23 13:51:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,537 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:51:29,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:51:29,537 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 22 [2018-07-23 13:51:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,538 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:51:29,538 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:51:29,539 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:51:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:51:29,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:51:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:51:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:51:29,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 22 [2018-07-23 13:51:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,547 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:51:29,547 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:51:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:51:29,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:51:29,549 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,549 INFO L357 BasicCegarLoop]: trace histogram [21, 1, 1] [2018-07-23 13:51:29,549 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1686124856, now seen corresponding path program 21 times [2018-07-23 13:51:29,549 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,686 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 13:51:29,687 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,687 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:51:29,687 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,688 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 13:51:29,689 INFO L185 omatonBuilderFactory]: Interpolants [1504#(<= main_x 0), 1505#(<= main_x 1), 1506#(<= main_x 2), 1507#(<= main_x 3), 1508#(<= main_x 4), 1509#(<= main_x 5), 1510#(<= main_x 6), 1511#(<= main_x 7), 1512#(<= main_x 8), 1513#(<= main_x 9), 1514#(<= main_x 10), 1515#(<= main_x 11), 1516#(<= main_x 12), 1517#(<= main_x 13), 1518#(<= main_x 14), 1519#(<= main_x 15), 1520#(<= main_x 16), 1521#(<= main_x 17), 1522#(<= main_x 18), 1523#(<= main_x 19), 1524#(<= main_x 20), 1525#(<= main_x 21), 1502#true, 1503#false] [2018-07-23 13:51:29,689 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 13:51:29,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:51:29,690 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:51:29,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:51:29,693 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 24 states. [2018-07-23 13:51:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,711 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-07-23 13:51:29,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:51:29,711 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2018-07-23 13:51:29,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,712 INFO L225 Difference]: With dead ends: 26 [2018-07-23 13:51:29,712 INFO L226 Difference]: Without dead ends: 25 [2018-07-23 13:51:29,713 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:51:29,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-07-23 13:51:29,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-07-23 13:51:29,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-07-23 13:51:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-07-23 13:51:29,720 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-07-23 13:51:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,721 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-07-23 13:51:29,721 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:51:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-07-23 13:51:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-07-23 13:51:29,722 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,722 INFO L357 BasicCegarLoop]: trace histogram [22, 1, 1] [2018-07-23 13:51:29,722 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,722 INFO L82 PathProgramCache]: Analyzing trace with hash 730263219, now seen corresponding path program 22 times [2018-07-23 13:51:29,722 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:29,848 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 13:51:29,848 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:29,849 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:51:29,849 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:29,849 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 13:51:29,850 INFO L185 omatonBuilderFactory]: Interpolants [1628#true, 1629#false, 1630#(<= main_x 0), 1631#(<= main_x 1), 1632#(<= main_x 2), 1633#(<= main_x 3), 1634#(<= main_x 4), 1635#(<= main_x 5), 1636#(<= main_x 6), 1637#(<= main_x 7), 1638#(<= main_x 8), 1639#(<= main_x 9), 1640#(<= main_x 10), 1641#(<= main_x 11), 1642#(<= main_x 12), 1643#(<= main_x 13), 1644#(<= main_x 14), 1645#(<= main_x 15), 1646#(<= main_x 16), 1647#(<= main_x 17), 1648#(<= main_x 18), 1649#(<= main_x 19), 1650#(<= main_x 20), 1651#(<= main_x 21), 1652#(<= main_x 22)] [2018-07-23 13:51:29,851 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 13:51:29,851 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:51:29,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:51:29,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:51:29,852 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 25 states. [2018-07-23 13:51:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:29,876 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:51:29,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:51:29,876 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 24 [2018-07-23 13:51:29,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:29,877 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:51:29,877 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:51:29,878 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:51:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:51:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:51:29,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:51:29,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:51:29,883 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2018-07-23 13:51:29,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:29,883 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:51:29,884 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:51:29,884 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:51:29,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:51:29,885 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:29,886 INFO L357 BasicCegarLoop]: trace histogram [23, 1, 1] [2018-07-23 13:51:29,886 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:29,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1163323544, now seen corresponding path program 23 times [2018-07-23 13:51:29,886 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,051 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 13:51:30,052 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,052 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:51:30,052 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,052 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 13:51:30,053 INFO L185 omatonBuilderFactory]: Interpolants [1759#true, 1760#false, 1761#(<= main_x 0), 1762#(<= main_x 1), 1763#(<= main_x 2), 1764#(<= main_x 3), 1765#(<= main_x 4), 1766#(<= main_x 5), 1767#(<= main_x 6), 1768#(<= main_x 7), 1769#(<= main_x 8), 1770#(<= main_x 9), 1771#(<= main_x 10), 1772#(<= main_x 11), 1773#(<= main_x 12), 1774#(<= main_x 13), 1775#(<= main_x 14), 1776#(<= main_x 15), 1777#(<= main_x 16), 1778#(<= main_x 17), 1779#(<= main_x 18), 1780#(<= main_x 19), 1781#(<= main_x 20), 1782#(<= main_x 21), 1783#(<= main_x 22), 1784#(<= main_x 23)] [2018-07-23 13:51:30,056 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 13:51:30,056 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:51:30,057 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:51:30,057 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:51:30,058 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 26 states. [2018-07-23 13:51:30,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,081 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-07-23 13:51:30,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:51:30,082 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 25 [2018-07-23 13:51:30,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,082 INFO L225 Difference]: With dead ends: 28 [2018-07-23 13:51:30,083 INFO L226 Difference]: Without dead ends: 27 [2018-07-23 13:51:30,083 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:51:30,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-07-23 13:51:30,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-07-23 13:51:30,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-07-23 13:51:30,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-07-23 13:51:30,088 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 25 [2018-07-23 13:51:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,088 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-07-23 13:51:30,088 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:51:30,088 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-07-23 13:51:30,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-07-23 13:51:30,089 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,089 INFO L357 BasicCegarLoop]: trace histogram [24, 1, 1] [2018-07-23 13:51:30,090 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1703291731, now seen corresponding path program 24 times [2018-07-23 13:51:30,091 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,212 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 13:51:30,212 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,212 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:51:30,213 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,213 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 13:51:30,213 INFO L185 omatonBuilderFactory]: Interpolants [1920#(<= main_x 23), 1921#(<= main_x 24), 1895#true, 1896#false, 1897#(<= main_x 0), 1898#(<= main_x 1), 1899#(<= main_x 2), 1900#(<= main_x 3), 1901#(<= main_x 4), 1902#(<= main_x 5), 1903#(<= main_x 6), 1904#(<= main_x 7), 1905#(<= main_x 8), 1906#(<= main_x 9), 1907#(<= main_x 10), 1908#(<= main_x 11), 1909#(<= main_x 12), 1910#(<= main_x 13), 1911#(<= main_x 14), 1912#(<= main_x 15), 1913#(<= main_x 16), 1914#(<= main_x 17), 1915#(<= main_x 18), 1916#(<= main_x 19), 1917#(<= main_x 20), 1918#(<= main_x 21), 1919#(<= main_x 22)] [2018-07-23 13:51:30,214 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 13:51:30,214 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:51:30,216 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:51:30,217 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:51:30,217 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 27 states. [2018-07-23 13:51:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,232 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:51:30,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:51:30,233 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 26 [2018-07-23 13:51:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,233 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:51:30,233 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:51:30,234 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:51:30,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:51:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:51:30,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:51:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:51:30,238 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 26 [2018-07-23 13:51:30,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,238 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:51:30,238 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:51:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:51:30,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:51:30,239 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,239 INFO L357 BasicCegarLoop]: trace histogram [25, 1, 1] [2018-07-23 13:51:30,239 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1262436344, now seen corresponding path program 25 times [2018-07-23 13:51:30,239 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,358 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 13:51:30,359 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,359 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:51:30,359 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,359 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 13:51:30,360 INFO L185 omatonBuilderFactory]: Interpolants [2048#(<= main_x 10), 2049#(<= main_x 11), 2050#(<= main_x 12), 2051#(<= main_x 13), 2052#(<= main_x 14), 2053#(<= main_x 15), 2054#(<= main_x 16), 2055#(<= main_x 17), 2056#(<= main_x 18), 2057#(<= main_x 19), 2058#(<= main_x 20), 2059#(<= main_x 21), 2060#(<= main_x 22), 2061#(<= main_x 23), 2062#(<= main_x 24), 2063#(<= main_x 25), 2036#true, 2037#false, 2038#(<= main_x 0), 2039#(<= main_x 1), 2040#(<= main_x 2), 2041#(<= main_x 3), 2042#(<= main_x 4), 2043#(<= main_x 5), 2044#(<= main_x 6), 2045#(<= main_x 7), 2046#(<= main_x 8), 2047#(<= main_x 9)] [2018-07-23 13:51:30,360 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 13:51:30,360 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:51:30,361 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:51:30,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:51:30,361 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 28 states. [2018-07-23 13:51:30,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,378 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-07-23 13:51:30,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:51:30,378 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 27 [2018-07-23 13:51:30,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,379 INFO L225 Difference]: With dead ends: 30 [2018-07-23 13:51:30,379 INFO L226 Difference]: Without dead ends: 29 [2018-07-23 13:51:30,380 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:51:30,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-23 13:51:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-23 13:51:30,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-23 13:51:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-07-23 13:51:30,385 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 27 [2018-07-23 13:51:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,386 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-07-23 13:51:30,386 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:51:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-07-23 13:51:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-23 13:51:30,386 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,387 INFO L357 BasicCegarLoop]: trace histogram [26, 1, 1] [2018-07-23 13:51:30,387 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,387 INFO L82 PathProgramCache]: Analyzing trace with hash 480821235, now seen corresponding path program 26 times [2018-07-23 13:51:30,387 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,517 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 13:51:30,517 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,518 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:51:30,518 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,518 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 13:51:30,519 INFO L185 omatonBuilderFactory]: Interpolants [2182#true, 2183#false, 2184#(<= main_x 0), 2185#(<= main_x 1), 2186#(<= main_x 2), 2187#(<= main_x 3), 2188#(<= main_x 4), 2189#(<= main_x 5), 2190#(<= main_x 6), 2191#(<= main_x 7), 2192#(<= main_x 8), 2193#(<= main_x 9), 2194#(<= main_x 10), 2195#(<= main_x 11), 2196#(<= main_x 12), 2197#(<= main_x 13), 2198#(<= main_x 14), 2199#(<= main_x 15), 2200#(<= main_x 16), 2201#(<= main_x 17), 2202#(<= main_x 18), 2203#(<= main_x 19), 2204#(<= main_x 20), 2205#(<= main_x 21), 2206#(<= main_x 22), 2207#(<= main_x 23), 2208#(<= main_x 24), 2209#(<= main_x 25), 2210#(<= main_x 26)] [2018-07-23 13:51:30,519 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 13:51:30,519 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:51:30,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:51:30,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:51:30,521 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 29 states. [2018-07-23 13:51:30,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,539 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:51:30,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:51:30,540 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 28 [2018-07-23 13:51:30,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,540 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:51:30,540 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:51:30,541 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:51:30,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:51:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:51:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:51:30,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:51:30,545 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 28 [2018-07-23 13:51:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,545 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:51:30,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:51:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:51:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:51:30,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,546 INFO L357 BasicCegarLoop]: trace histogram [27, 1, 1] [2018-07-23 13:51:30,546 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2020556632, now seen corresponding path program 27 times [2018-07-23 13:51:30,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,680 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 13:51:30,680 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,681 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:51:30,681 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,681 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 13:51:30,682 INFO L185 omatonBuilderFactory]: Interpolants [2333#true, 2334#false, 2335#(<= main_x 0), 2336#(<= main_x 1), 2337#(<= main_x 2), 2338#(<= main_x 3), 2339#(<= main_x 4), 2340#(<= main_x 5), 2341#(<= main_x 6), 2342#(<= main_x 7), 2343#(<= main_x 8), 2344#(<= main_x 9), 2345#(<= main_x 10), 2346#(<= main_x 11), 2347#(<= main_x 12), 2348#(<= main_x 13), 2349#(<= main_x 14), 2350#(<= main_x 15), 2351#(<= main_x 16), 2352#(<= main_x 17), 2353#(<= main_x 18), 2354#(<= main_x 19), 2355#(<= main_x 20), 2356#(<= main_x 21), 2357#(<= main_x 22), 2358#(<= main_x 23), 2359#(<= main_x 24), 2360#(<= main_x 25), 2361#(<= main_x 26), 2362#(<= main_x 27)] [2018-07-23 13:51:30,682 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 13:51:30,682 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:51:30,683 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:51:30,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:51:30,684 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 30 states. [2018-07-23 13:51:30,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,704 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-07-23 13:51:30,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:51:30,704 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 29 [2018-07-23 13:51:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,704 INFO L225 Difference]: With dead ends: 32 [2018-07-23 13:51:30,705 INFO L226 Difference]: Without dead ends: 31 [2018-07-23 13:51:30,705 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:51:30,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-07-23 13:51:30,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-07-23 13:51:30,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-07-23 13:51:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-07-23 13:51:30,709 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 29 [2018-07-23 13:51:30,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,709 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-07-23 13:51:30,709 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:51:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-07-23 13:51:30,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-23 13:51:30,710 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,710 INFO L357 BasicCegarLoop]: trace histogram [28, 1, 1] [2018-07-23 13:51:30,710 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1787253613, now seen corresponding path program 28 times [2018-07-23 13:51:30,711 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:30,849 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 13:51:30,849 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:30,849 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:51:30,850 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:30,850 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 13:51:30,850 INFO L185 omatonBuilderFactory]: Interpolants [2496#(<= main_x 5), 2497#(<= main_x 6), 2498#(<= main_x 7), 2499#(<= main_x 8), 2500#(<= main_x 9), 2501#(<= main_x 10), 2502#(<= main_x 11), 2503#(<= main_x 12), 2504#(<= main_x 13), 2505#(<= main_x 14), 2506#(<= main_x 15), 2507#(<= main_x 16), 2508#(<= main_x 17), 2509#(<= main_x 18), 2510#(<= main_x 19), 2511#(<= main_x 20), 2512#(<= main_x 21), 2513#(<= main_x 22), 2514#(<= main_x 23), 2515#(<= main_x 24), 2516#(<= main_x 25), 2517#(<= main_x 26), 2518#(<= main_x 27), 2519#(<= main_x 28), 2489#true, 2490#false, 2491#(<= main_x 0), 2492#(<= main_x 1), 2493#(<= main_x 2), 2494#(<= main_x 3), 2495#(<= main_x 4)] [2018-07-23 13:51:30,851 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 13:51:30,851 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:51:30,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:51:30,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:51:30,852 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 31 states. [2018-07-23 13:51:30,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:30,871 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:51:30,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:51:30,872 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 30 [2018-07-23 13:51:30,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:30,872 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:51:30,872 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:51:30,873 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:51:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:51:30,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:51:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:51:30,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:51:30,877 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 30 [2018-07-23 13:51:30,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:30,877 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:51:30,877 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:51:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:51:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:51:30,878 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:30,878 INFO L357 BasicCegarLoop]: trace histogram [29, 1, 1] [2018-07-23 13:51:30,878 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:30,878 INFO L82 PathProgramCache]: Analyzing trace with hash 429713080, now seen corresponding path program 29 times [2018-07-23 13:51:30,879 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,132 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 13:51:31,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:31,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:51:31,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:31,133 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 13:51:31,133 INFO L185 omatonBuilderFactory]: Interpolants [2650#true, 2651#false, 2652#(<= main_x 0), 2653#(<= main_x 1), 2654#(<= main_x 2), 2655#(<= main_x 3), 2656#(<= main_x 4), 2657#(<= main_x 5), 2658#(<= main_x 6), 2659#(<= main_x 7), 2660#(<= main_x 8), 2661#(<= main_x 9), 2662#(<= main_x 10), 2663#(<= main_x 11), 2664#(<= main_x 12), 2665#(<= main_x 13), 2666#(<= main_x 14), 2667#(<= main_x 15), 2668#(<= main_x 16), 2669#(<= main_x 17), 2670#(<= main_x 18), 2671#(<= main_x 19), 2672#(<= main_x 20), 2673#(<= main_x 21), 2674#(<= main_x 22), 2675#(<= main_x 23), 2676#(<= main_x 24), 2677#(<= main_x 25), 2678#(<= main_x 26), 2679#(<= main_x 27), 2680#(<= main_x 28), 2681#(<= main_x 29)] [2018-07-23 13:51:31,134 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 13:51:31,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:51:31,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:51:31,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:51:31,135 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 32 states. [2018-07-23 13:51:31,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,154 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-07-23 13:51:31,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:51:31,155 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 31 [2018-07-23 13:51:31,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,155 INFO L225 Difference]: With dead ends: 34 [2018-07-23 13:51:31,155 INFO L226 Difference]: Without dead ends: 33 [2018-07-23 13:51:31,156 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:51:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-07-23 13:51:31,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-07-23 13:51:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-07-23 13:51:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-07-23 13:51:31,161 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 31 [2018-07-23 13:51:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,162 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-07-23 13:51:31,162 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:51:31,162 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-07-23 13:51:31,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-07-23 13:51:31,162 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,163 INFO L357 BasicCegarLoop]: trace histogram [30, 1, 1] [2018-07-23 13:51:31,163 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,163 INFO L82 PathProgramCache]: Analyzing trace with hash 436203827, now seen corresponding path program 30 times [2018-07-23 13:51:31,163 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,309 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 13:51:31,309 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:31,309 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:51:31,309 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:31,309 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 13:51:31,310 INFO L185 omatonBuilderFactory]: Interpolants [2816#true, 2817#false, 2818#(<= main_x 0), 2819#(<= main_x 1), 2820#(<= main_x 2), 2821#(<= main_x 3), 2822#(<= main_x 4), 2823#(<= main_x 5), 2824#(<= main_x 6), 2825#(<= main_x 7), 2826#(<= main_x 8), 2827#(<= main_x 9), 2828#(<= main_x 10), 2829#(<= main_x 11), 2830#(<= main_x 12), 2831#(<= main_x 13), 2832#(<= main_x 14), 2833#(<= main_x 15), 2834#(<= main_x 16), 2835#(<= main_x 17), 2836#(<= main_x 18), 2837#(<= main_x 19), 2838#(<= main_x 20), 2839#(<= main_x 21), 2840#(<= main_x 22), 2841#(<= main_x 23), 2842#(<= main_x 24), 2843#(<= main_x 25), 2844#(<= main_x 26), 2845#(<= main_x 27), 2846#(<= main_x 28), 2847#(<= main_x 29), 2848#(<= main_x 30)] [2018-07-23 13:51:31,310 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 13:51:31,310 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:51:31,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:51:31,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:51:31,312 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 33 states. [2018-07-23 13:51:31,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,330 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:51:31,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:51:31,330 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 32 [2018-07-23 13:51:31,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,330 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:51:31,330 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:51:31,331 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:51:31,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:51:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:51:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:51:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:51:31,337 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 32 [2018-07-23 13:51:31,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,337 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:51:31,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:51:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:51:31,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:51:31,338 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,338 INFO L357 BasicCegarLoop]: trace histogram [31, 1, 1] [2018-07-23 13:51:31,338 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,338 INFO L82 PathProgramCache]: Analyzing trace with hash 637416984, now seen corresponding path program 31 times [2018-07-23 13:51:31,338 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,485 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 13:51:31,486 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:31,487 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:51:31,487 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:31,487 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 13:51:31,487 INFO L185 omatonBuilderFactory]: Interpolants [3008#(<= main_x 19), 3009#(<= main_x 20), 3010#(<= main_x 21), 3011#(<= main_x 22), 3012#(<= main_x 23), 3013#(<= main_x 24), 3014#(<= main_x 25), 3015#(<= main_x 26), 3016#(<= main_x 27), 3017#(<= main_x 28), 3018#(<= main_x 29), 3019#(<= main_x 30), 3020#(<= main_x 31), 2987#true, 2988#false, 2989#(<= main_x 0), 2990#(<= main_x 1), 2991#(<= main_x 2), 2992#(<= main_x 3), 2993#(<= main_x 4), 2994#(<= main_x 5), 2995#(<= main_x 6), 2996#(<= main_x 7), 2997#(<= main_x 8), 2998#(<= main_x 9), 2999#(<= main_x 10), 3000#(<= main_x 11), 3001#(<= main_x 12), 3002#(<= main_x 13), 3003#(<= main_x 14), 3004#(<= main_x 15), 3005#(<= main_x 16), 3006#(<= main_x 17), 3007#(<= main_x 18)] [2018-07-23 13:51:31,488 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 13:51:31,488 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:51:31,488 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:51:31,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:51:31,489 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 34 states. [2018-07-23 13:51:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,509 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2018-07-23 13:51:31,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:51:31,509 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 33 [2018-07-23 13:51:31,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,509 INFO L225 Difference]: With dead ends: 36 [2018-07-23 13:51:31,509 INFO L226 Difference]: Without dead ends: 35 [2018-07-23 13:51:31,510 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:51:31,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-07-23 13:51:31,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-07-23 13:51:31,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-07-23 13:51:31,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-07-23 13:51:31,515 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 33 [2018-07-23 13:51:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,516 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-07-23 13:51:31,516 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:51:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-07-23 13:51:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-07-23 13:51:31,517 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,517 INFO L357 BasicCegarLoop]: trace histogram [32, 1, 1] [2018-07-23 13:51:31,517 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1714909741, now seen corresponding path program 32 times [2018-07-23 13:51:31,517 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,676 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 13:51:31,677 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:31,677 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:51:31,677 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:31,677 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 13:51:31,678 INFO L185 omatonBuilderFactory]: Interpolants [3163#true, 3164#false, 3165#(<= main_x 0), 3166#(<= main_x 1), 3167#(<= main_x 2), 3168#(<= main_x 3), 3169#(<= main_x 4), 3170#(<= main_x 5), 3171#(<= main_x 6), 3172#(<= main_x 7), 3173#(<= main_x 8), 3174#(<= main_x 9), 3175#(<= main_x 10), 3176#(<= main_x 11), 3177#(<= main_x 12), 3178#(<= main_x 13), 3179#(<= main_x 14), 3180#(<= main_x 15), 3181#(<= main_x 16), 3182#(<= main_x 17), 3183#(<= main_x 18), 3184#(<= main_x 19), 3185#(<= main_x 20), 3186#(<= main_x 21), 3187#(<= main_x 22), 3188#(<= main_x 23), 3189#(<= main_x 24), 3190#(<= main_x 25), 3191#(<= main_x 26), 3192#(<= main_x 27), 3193#(<= main_x 28), 3194#(<= main_x 29), 3195#(<= main_x 30), 3196#(<= main_x 31), 3197#(<= main_x 32)] [2018-07-23 13:51:31,678 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 13:51:31,680 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:51:31,680 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:51:31,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:51:31,681 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 35 states. [2018-07-23 13:51:31,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,701 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:51:31,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:51:31,701 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 34 [2018-07-23 13:51:31,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,701 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:51:31,702 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:51:31,703 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:51:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:51:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:51:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:51:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:51:31,709 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34 [2018-07-23 13:51:31,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,709 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:51:31,709 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:51:31,709 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:51:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:51:31,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,710 INFO L357 BasicCegarLoop]: trace histogram [33, 1, 1] [2018-07-23 13:51:31,710 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1622594184, now seen corresponding path program 33 times [2018-07-23 13:51:31,710 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:31,855 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 13:51:31,856 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:31,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2018-07-23 13:51:31,856 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:31,856 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 13:51:31,857 INFO L185 omatonBuilderFactory]: Interpolants [3344#true, 3345#false, 3346#(<= main_x 0), 3347#(<= main_x 1), 3348#(<= main_x 2), 3349#(<= main_x 3), 3350#(<= main_x 4), 3351#(<= main_x 5), 3352#(<= main_x 6), 3353#(<= main_x 7), 3354#(<= main_x 8), 3355#(<= main_x 9), 3356#(<= main_x 10), 3357#(<= main_x 11), 3358#(<= main_x 12), 3359#(<= main_x 13), 3360#(<= main_x 14), 3361#(<= main_x 15), 3362#(<= main_x 16), 3363#(<= main_x 17), 3364#(<= main_x 18), 3365#(<= main_x 19), 3366#(<= main_x 20), 3367#(<= main_x 21), 3368#(<= main_x 22), 3369#(<= main_x 23), 3370#(<= main_x 24), 3371#(<= main_x 25), 3372#(<= main_x 26), 3373#(<= main_x 27), 3374#(<= main_x 28), 3375#(<= main_x 29), 3376#(<= main_x 30), 3377#(<= main_x 31), 3378#(<= main_x 32), 3379#(<= main_x 33)] [2018-07-23 13:51:31,857 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 13:51:31,858 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:51:31,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:51:31,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:51:31,859 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 36 states. [2018-07-23 13:51:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:31,877 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-07-23 13:51:31,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:51:31,877 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 35 [2018-07-23 13:51:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:31,878 INFO L225 Difference]: With dead ends: 38 [2018-07-23 13:51:31,878 INFO L226 Difference]: Without dead ends: 37 [2018-07-23 13:51:31,879 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:51:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-23 13:51:31,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-23 13:51:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-23 13:51:31,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-07-23 13:51:31,881 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 35 [2018-07-23 13:51:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:31,882 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-07-23 13:51:31,882 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:51:31,882 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-07-23 13:51:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-23 13:51:31,882 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:31,882 INFO L357 BasicCegarLoop]: trace histogram [34, 1, 1] [2018-07-23 13:51:31,882 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:31,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1239188083, now seen corresponding path program 34 times [2018-07-23 13:51:31,883 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:32,033 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 13:51:32,033 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,034 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:51:32,034 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,034 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 13:51:32,034 INFO L185 omatonBuilderFactory]: Interpolants [3530#true, 3531#false, 3532#(<= main_x 0), 3533#(<= main_x 1), 3534#(<= main_x 2), 3535#(<= main_x 3), 3536#(<= main_x 4), 3537#(<= main_x 5), 3538#(<= main_x 6), 3539#(<= main_x 7), 3540#(<= main_x 8), 3541#(<= main_x 9), 3542#(<= main_x 10), 3543#(<= main_x 11), 3544#(<= main_x 12), 3545#(<= main_x 13), 3546#(<= main_x 14), 3547#(<= main_x 15), 3548#(<= main_x 16), 3549#(<= main_x 17), 3550#(<= main_x 18), 3551#(<= main_x 19), 3552#(<= main_x 20), 3553#(<= main_x 21), 3554#(<= main_x 22), 3555#(<= main_x 23), 3556#(<= main_x 24), 3557#(<= main_x 25), 3558#(<= main_x 26), 3559#(<= main_x 27), 3560#(<= main_x 28), 3561#(<= main_x 29), 3562#(<= main_x 30), 3563#(<= main_x 31), 3564#(<= main_x 32), 3565#(<= main_x 33), 3566#(<= main_x 34)] [2018-07-23 13:51:32,035 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 13:51:32,035 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:51:32,035 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:51:32,036 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:51:32,036 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 37 states. [2018-07-23 13:51:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,055 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:51:32,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:51:32,055 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 36 [2018-07-23 13:51:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,056 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:51:32,056 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:51:32,057 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:51:32,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:51:32,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:51:32,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:51:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:51:32,060 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 36 [2018-07-23 13:51:32,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,060 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:51:32,060 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:51:32,060 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:51:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:51:32,060 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,061 INFO L357 BasicCegarLoop]: trace histogram [35, 1, 1] [2018-07-23 13:51:32,061 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash -239874856, now seen corresponding path program 35 times [2018-07-23 13:51:32,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:32,218 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 13:51:32,219 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,219 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:51:32,219 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,219 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 13:51:32,219 INFO L185 omatonBuilderFactory]: Interpolants [3721#true, 3722#false, 3723#(<= main_x 0), 3724#(<= main_x 1), 3725#(<= main_x 2), 3726#(<= main_x 3), 3727#(<= main_x 4), 3728#(<= main_x 5), 3729#(<= main_x 6), 3730#(<= main_x 7), 3731#(<= main_x 8), 3732#(<= main_x 9), 3733#(<= main_x 10), 3734#(<= main_x 11), 3735#(<= main_x 12), 3736#(<= main_x 13), 3737#(<= main_x 14), 3738#(<= main_x 15), 3739#(<= main_x 16), 3740#(<= main_x 17), 3741#(<= main_x 18), 3742#(<= main_x 19), 3743#(<= main_x 20), 3744#(<= main_x 21), 3745#(<= main_x 22), 3746#(<= main_x 23), 3747#(<= main_x 24), 3748#(<= main_x 25), 3749#(<= main_x 26), 3750#(<= main_x 27), 3751#(<= main_x 28), 3752#(<= main_x 29), 3753#(<= main_x 30), 3754#(<= main_x 31), 3755#(<= main_x 32), 3756#(<= main_x 33), 3757#(<= main_x 34), 3758#(<= main_x 35)] [2018-07-23 13:51:32,220 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 13:51:32,220 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:51:32,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:51:32,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:51:32,221 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 38 states. [2018-07-23 13:51:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,241 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2018-07-23 13:51:32,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:51:32,241 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 37 [2018-07-23 13:51:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,241 INFO L225 Difference]: With dead ends: 40 [2018-07-23 13:51:32,241 INFO L226 Difference]: Without dead ends: 39 [2018-07-23 13:51:32,242 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:51:32,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-07-23 13:51:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-07-23 13:51:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-07-23 13:51:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-07-23 13:51:32,245 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 37 [2018-07-23 13:51:32,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,245 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-07-23 13:51:32,245 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:51:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-07-23 13:51:32,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-07-23 13:51:32,246 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,246 INFO L357 BasicCegarLoop]: trace histogram [36, 1, 1] [2018-07-23 13:51:32,246 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1153814291, now seen corresponding path program 36 times [2018-07-23 13:51:32,246 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:32,405 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 13:51:32,405 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,405 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:51:32,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,406 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 13:51:32,406 INFO L185 omatonBuilderFactory]: Interpolants [3917#true, 3918#false, 3919#(<= main_x 0), 3920#(<= main_x 1), 3921#(<= main_x 2), 3922#(<= main_x 3), 3923#(<= main_x 4), 3924#(<= main_x 5), 3925#(<= main_x 6), 3926#(<= main_x 7), 3927#(<= main_x 8), 3928#(<= main_x 9), 3929#(<= main_x 10), 3930#(<= main_x 11), 3931#(<= main_x 12), 3932#(<= main_x 13), 3933#(<= main_x 14), 3934#(<= main_x 15), 3935#(<= main_x 16), 3936#(<= main_x 17), 3937#(<= main_x 18), 3938#(<= main_x 19), 3939#(<= main_x 20), 3940#(<= main_x 21), 3941#(<= main_x 22), 3942#(<= main_x 23), 3943#(<= main_x 24), 3944#(<= main_x 25), 3945#(<= main_x 26), 3946#(<= main_x 27), 3947#(<= main_x 28), 3948#(<= main_x 29), 3949#(<= main_x 30), 3950#(<= main_x 31), 3951#(<= main_x 32), 3952#(<= main_x 33), 3953#(<= main_x 34), 3954#(<= main_x 35), 3955#(<= main_x 36)] [2018-07-23 13:51:32,406 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 13:51:32,407 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:51:32,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:51:32,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:51:32,408 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 39 states. [2018-07-23 13:51:32,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,427 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:51:32,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:51:32,427 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 38 [2018-07-23 13:51:32,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,428 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:51:32,428 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:51:32,429 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:51:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:51:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:51:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:51:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:51:32,431 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 38 [2018-07-23 13:51:32,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,431 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:51:32,431 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:51:32,432 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:51:32,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:51:32,432 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,432 INFO L357 BasicCegarLoop]: trace histogram [37, 1, 1] [2018-07-23 13:51:32,432 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1408504888, now seen corresponding path program 37 times [2018-07-23 13:51:32,433 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:32,599 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 13:51:32,599 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,599 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:51:32,600 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,600 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 13:51:32,600 INFO L185 omatonBuilderFactory]: Interpolants [4118#true, 4119#false, 4120#(<= main_x 0), 4121#(<= main_x 1), 4122#(<= main_x 2), 4123#(<= main_x 3), 4124#(<= main_x 4), 4125#(<= main_x 5), 4126#(<= main_x 6), 4127#(<= main_x 7), 4128#(<= main_x 8), 4129#(<= main_x 9), 4130#(<= main_x 10), 4131#(<= main_x 11), 4132#(<= main_x 12), 4133#(<= main_x 13), 4134#(<= main_x 14), 4135#(<= main_x 15), 4136#(<= main_x 16), 4137#(<= main_x 17), 4138#(<= main_x 18), 4139#(<= main_x 19), 4140#(<= main_x 20), 4141#(<= main_x 21), 4142#(<= main_x 22), 4143#(<= main_x 23), 4144#(<= main_x 24), 4145#(<= main_x 25), 4146#(<= main_x 26), 4147#(<= main_x 27), 4148#(<= main_x 28), 4149#(<= main_x 29), 4150#(<= main_x 30), 4151#(<= main_x 31), 4152#(<= main_x 32), 4153#(<= main_x 33), 4154#(<= main_x 34), 4155#(<= main_x 35), 4156#(<= main_x 36), 4157#(<= main_x 37)] [2018-07-23 13:51:32,600 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 13:51:32,601 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:51:32,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:51:32,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:51:32,602 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 40 states. [2018-07-23 13:51:32,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,622 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2018-07-23 13:51:32,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:51:32,623 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 39 [2018-07-23 13:51:32,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,623 INFO L225 Difference]: With dead ends: 42 [2018-07-23 13:51:32,623 INFO L226 Difference]: Without dead ends: 41 [2018-07-23 13:51:32,625 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:51:32,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-07-23 13:51:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-07-23 13:51:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-07-23 13:51:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2018-07-23 13:51:32,627 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 39 [2018-07-23 13:51:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,627 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2018-07-23 13:51:32,630 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:51:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2018-07-23 13:51:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 13:51:32,631 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,631 INFO L357 BasicCegarLoop]: trace histogram [38, 1, 1] [2018-07-23 13:51:32,631 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,632 INFO L82 PathProgramCache]: Analyzing trace with hash 713978803, now seen corresponding path program 38 times [2018-07-23 13:51:32,632 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:32,800 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 13:51:32,800 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:32,801 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:51:32,801 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:32,801 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 13:51:32,801 INFO L185 omatonBuilderFactory]: Interpolants [4352#(<= main_x 26), 4353#(<= main_x 27), 4354#(<= main_x 28), 4355#(<= main_x 29), 4356#(<= main_x 30), 4357#(<= main_x 31), 4358#(<= main_x 32), 4359#(<= main_x 33), 4360#(<= main_x 34), 4361#(<= main_x 35), 4362#(<= main_x 36), 4363#(<= main_x 37), 4364#(<= main_x 38), 4324#true, 4325#false, 4326#(<= main_x 0), 4327#(<= main_x 1), 4328#(<= main_x 2), 4329#(<= main_x 3), 4330#(<= main_x 4), 4331#(<= main_x 5), 4332#(<= main_x 6), 4333#(<= main_x 7), 4334#(<= main_x 8), 4335#(<= main_x 9), 4336#(<= main_x 10), 4337#(<= main_x 11), 4338#(<= main_x 12), 4339#(<= main_x 13), 4340#(<= main_x 14), 4341#(<= main_x 15), 4342#(<= main_x 16), 4343#(<= main_x 17), 4344#(<= main_x 18), 4345#(<= main_x 19), 4346#(<= main_x 20), 4347#(<= main_x 21), 4348#(<= main_x 22), 4349#(<= main_x 23), 4350#(<= main_x 24), 4351#(<= main_x 25)] [2018-07-23 13:51:32,802 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 13:51:32,802 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:51:32,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:51:32,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:51:32,803 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 41 states. [2018-07-23 13:51:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:32,821 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:51:32,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:51:32,821 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 40 [2018-07-23 13:51:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:32,822 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:51:32,822 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:51:32,823 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:51:32,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:51:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:51:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:51:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:51:32,825 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 40 [2018-07-23 13:51:32,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:32,826 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:51:32,826 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:51:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:51:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:51:32,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:32,827 INFO L357 BasicCegarLoop]: trace histogram [39, 1, 1] [2018-07-23 13:51:32,827 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:32,827 INFO L82 PathProgramCache]: Analyzing trace with hash 658506648, now seen corresponding path program 39 times [2018-07-23 13:51:32,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,001 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 13:51:33,002 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:33,002 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:51:33,002 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:33,002 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 13:51:33,003 INFO L185 omatonBuilderFactory]: Interpolants [4544#(<= main_x 7), 4545#(<= main_x 8), 4546#(<= main_x 9), 4547#(<= main_x 10), 4548#(<= main_x 11), 4549#(<= main_x 12), 4550#(<= main_x 13), 4551#(<= main_x 14), 4552#(<= main_x 15), 4553#(<= main_x 16), 4554#(<= main_x 17), 4555#(<= main_x 18), 4556#(<= main_x 19), 4557#(<= main_x 20), 4558#(<= main_x 21), 4559#(<= main_x 22), 4560#(<= main_x 23), 4561#(<= main_x 24), 4562#(<= main_x 25), 4563#(<= main_x 26), 4564#(<= main_x 27), 4565#(<= main_x 28), 4566#(<= main_x 29), 4567#(<= main_x 30), 4568#(<= main_x 31), 4569#(<= main_x 32), 4570#(<= main_x 33), 4571#(<= main_x 34), 4572#(<= main_x 35), 4573#(<= main_x 36), 4574#(<= main_x 37), 4575#(<= main_x 38), 4576#(<= main_x 39), 4535#true, 4536#false, 4537#(<= main_x 0), 4538#(<= main_x 1), 4539#(<= main_x 2), 4540#(<= main_x 3), 4541#(<= main_x 4), 4542#(<= main_x 5), 4543#(<= main_x 6)] [2018-07-23 13:51:33,003 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 13:51:33,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:51:33,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:51:33,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:51:33,005 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 42 states. [2018-07-23 13:51:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:33,027 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2018-07-23 13:51:33,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:51:33,027 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 41 [2018-07-23 13:51:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:33,028 INFO L225 Difference]: With dead ends: 44 [2018-07-23 13:51:33,028 INFO L226 Difference]: Without dead ends: 43 [2018-07-23 13:51:33,029 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:51:33,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-07-23 13:51:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-07-23 13:51:33,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-07-23 13:51:33,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-07-23 13:51:33,032 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 41 [2018-07-23 13:51:33,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:33,033 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2018-07-23 13:51:33,033 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:51:33,033 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-07-23 13:51:33,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-23 13:51:33,033 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:33,034 INFO L357 BasicCegarLoop]: trace histogram [40, 1, 1] [2018-07-23 13:51:33,034 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:33,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1061130157, now seen corresponding path program 40 times [2018-07-23 13:51:33,034 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,251 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 13:51:33,251 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:33,251 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:51:33,251 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:33,252 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 13:51:33,252 INFO L185 omatonBuilderFactory]: Interpolants [4751#true, 4752#false, 4753#(<= main_x 0), 4754#(<= main_x 1), 4755#(<= main_x 2), 4756#(<= main_x 3), 4757#(<= main_x 4), 4758#(<= main_x 5), 4759#(<= main_x 6), 4760#(<= main_x 7), 4761#(<= main_x 8), 4762#(<= main_x 9), 4763#(<= main_x 10), 4764#(<= main_x 11), 4765#(<= main_x 12), 4766#(<= main_x 13), 4767#(<= main_x 14), 4768#(<= main_x 15), 4769#(<= main_x 16), 4770#(<= main_x 17), 4771#(<= main_x 18), 4772#(<= main_x 19), 4773#(<= main_x 20), 4774#(<= main_x 21), 4775#(<= main_x 22), 4776#(<= main_x 23), 4777#(<= main_x 24), 4778#(<= main_x 25), 4779#(<= main_x 26), 4780#(<= main_x 27), 4781#(<= main_x 28), 4782#(<= main_x 29), 4783#(<= main_x 30), 4784#(<= main_x 31), 4785#(<= main_x 32), 4786#(<= main_x 33), 4787#(<= main_x 34), 4788#(<= main_x 35), 4789#(<= main_x 36), 4790#(<= main_x 37), 4791#(<= main_x 38), 4792#(<= main_x 39), 4793#(<= main_x 40)] [2018-07-23 13:51:33,253 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 13:51:33,253 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:51:33,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:51:33,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:51:33,255 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 43 states. [2018-07-23 13:51:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:33,282 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:51:33,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:51:33,282 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 42 [2018-07-23 13:51:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:33,283 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:51:33,283 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:51:33,284 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:51:33,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:51:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:51:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:51:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:51:33,287 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 42 [2018-07-23 13:51:33,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:33,288 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:51:33,288 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:51:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:51:33,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:51:33,288 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:33,289 INFO L357 BasicCegarLoop]: trace histogram [41, 1, 1] [2018-07-23 13:51:33,289 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:33,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1464703736, now seen corresponding path program 41 times [2018-07-23 13:51:33,289 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,550 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 13:51:33,550 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:33,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:51:33,551 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:33,551 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 13:51:33,551 INFO L185 omatonBuilderFactory]: Interpolants [4992#(<= main_x 18), 4993#(<= main_x 19), 4994#(<= main_x 20), 4995#(<= main_x 21), 4996#(<= main_x 22), 4997#(<= main_x 23), 4998#(<= main_x 24), 4999#(<= main_x 25), 5000#(<= main_x 26), 5001#(<= main_x 27), 5002#(<= main_x 28), 5003#(<= main_x 29), 5004#(<= main_x 30), 5005#(<= main_x 31), 5006#(<= main_x 32), 5007#(<= main_x 33), 5008#(<= main_x 34), 5009#(<= main_x 35), 5010#(<= main_x 36), 5011#(<= main_x 37), 5012#(<= main_x 38), 5013#(<= main_x 39), 5014#(<= main_x 40), 5015#(<= main_x 41), 4972#true, 4973#false, 4974#(<= main_x 0), 4975#(<= main_x 1), 4976#(<= main_x 2), 4977#(<= main_x 3), 4978#(<= main_x 4), 4979#(<= main_x 5), 4980#(<= main_x 6), 4981#(<= main_x 7), 4982#(<= main_x 8), 4983#(<= main_x 9), 4984#(<= main_x 10), 4985#(<= main_x 11), 4986#(<= main_x 12), 4987#(<= main_x 13), 4988#(<= main_x 14), 4989#(<= main_x 15), 4990#(<= main_x 16), 4991#(<= main_x 17)] [2018-07-23 13:51:33,552 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 13:51:33,552 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:51:33,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:51:33,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:51:33,554 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 44 states. [2018-07-23 13:51:33,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:33,574 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2018-07-23 13:51:33,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:51:33,574 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 43 [2018-07-23 13:51:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:33,575 INFO L225 Difference]: With dead ends: 46 [2018-07-23 13:51:33,575 INFO L226 Difference]: Without dead ends: 45 [2018-07-23 13:51:33,576 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:51:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-07-23 13:51:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-07-23 13:51:33,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-07-23 13:51:33,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-07-23 13:51:33,579 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 43 [2018-07-23 13:51:33,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:33,579 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-07-23 13:51:33,579 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:51:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-07-23 13:51:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-23 13:51:33,580 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:33,580 INFO L357 BasicCegarLoop]: trace histogram [42, 1, 1] [2018-07-23 13:51:33,580 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1838824205, now seen corresponding path program 42 times [2018-07-23 13:51:33,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,769 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 13:51:33,770 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:33,770 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:51:33,770 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:33,770 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 13:51:33,770 INFO L185 omatonBuilderFactory]: Interpolants [5198#true, 5199#false, 5200#(<= main_x 0), 5201#(<= main_x 1), 5202#(<= main_x 2), 5203#(<= main_x 3), 5204#(<= main_x 4), 5205#(<= main_x 5), 5206#(<= main_x 6), 5207#(<= main_x 7), 5208#(<= main_x 8), 5209#(<= main_x 9), 5210#(<= main_x 10), 5211#(<= main_x 11), 5212#(<= main_x 12), 5213#(<= main_x 13), 5214#(<= main_x 14), 5215#(<= main_x 15), 5216#(<= main_x 16), 5217#(<= main_x 17), 5218#(<= main_x 18), 5219#(<= main_x 19), 5220#(<= main_x 20), 5221#(<= main_x 21), 5222#(<= main_x 22), 5223#(<= main_x 23), 5224#(<= main_x 24), 5225#(<= main_x 25), 5226#(<= main_x 26), 5227#(<= main_x 27), 5228#(<= main_x 28), 5229#(<= main_x 29), 5230#(<= main_x 30), 5231#(<= main_x 31), 5232#(<= main_x 32), 5233#(<= main_x 33), 5234#(<= main_x 34), 5235#(<= main_x 35), 5236#(<= main_x 36), 5237#(<= main_x 37), 5238#(<= main_x 38), 5239#(<= main_x 39), 5240#(<= main_x 40), 5241#(<= main_x 41), 5242#(<= main_x 42)] [2018-07-23 13:51:33,771 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 13:51:33,771 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:51:33,771 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:51:33,772 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:51:33,772 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 45 states. [2018-07-23 13:51:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:33,797 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:51:33,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:51:33,797 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 44 [2018-07-23 13:51:33,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:33,798 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:51:33,798 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:51:33,799 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:51:33,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:51:33,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:51:33,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:51:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:51:33,803 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 44 [2018-07-23 13:51:33,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:33,803 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:51:33,803 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:51:33,803 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:51:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:51:33,804 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:33,804 INFO L357 BasicCegarLoop]: trace histogram [43, 1, 1] [2018-07-23 13:51:33,804 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:33,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1168975272, now seen corresponding path program 43 times [2018-07-23 13:51:33,804 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:33,999 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 13:51:33,999 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:51:34,000 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,000 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 13:51:34,002 INFO L185 omatonBuilderFactory]: Interpolants [5440#(<= main_x 9), 5441#(<= main_x 10), 5442#(<= main_x 11), 5443#(<= main_x 12), 5444#(<= main_x 13), 5445#(<= main_x 14), 5446#(<= main_x 15), 5447#(<= main_x 16), 5448#(<= main_x 17), 5449#(<= main_x 18), 5450#(<= main_x 19), 5451#(<= main_x 20), 5452#(<= main_x 21), 5453#(<= main_x 22), 5454#(<= main_x 23), 5455#(<= main_x 24), 5456#(<= main_x 25), 5457#(<= main_x 26), 5458#(<= main_x 27), 5459#(<= main_x 28), 5460#(<= main_x 29), 5461#(<= main_x 30), 5462#(<= main_x 31), 5463#(<= main_x 32), 5464#(<= main_x 33), 5465#(<= main_x 34), 5466#(<= main_x 35), 5467#(<= main_x 36), 5468#(<= main_x 37), 5469#(<= main_x 38), 5470#(<= main_x 39), 5471#(<= main_x 40), 5472#(<= main_x 41), 5473#(<= main_x 42), 5474#(<= main_x 43), 5429#true, 5430#false, 5431#(<= main_x 0), 5432#(<= main_x 1), 5433#(<= main_x 2), 5434#(<= main_x 3), 5435#(<= main_x 4), 5436#(<= main_x 5), 5437#(<= main_x 6), 5438#(<= main_x 7), 5439#(<= main_x 8)] [2018-07-23 13:51:34,002 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 13:51:34,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:51:34,005 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:51:34,006 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:51:34,006 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 46 states. [2018-07-23 13:51:34,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:34,035 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2018-07-23 13:51:34,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:51:34,036 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 45 [2018-07-23 13:51:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:34,036 INFO L225 Difference]: With dead ends: 48 [2018-07-23 13:51:34,036 INFO L226 Difference]: Without dead ends: 47 [2018-07-23 13:51:34,038 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:51:34,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-23 13:51:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-07-23 13:51:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-07-23 13:51:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-07-23 13:51:34,041 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 45 [2018-07-23 13:51:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:34,042 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-07-23 13:51:34,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:51:34,042 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-07-23 13:51:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-07-23 13:51:34,042 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:34,042 INFO L357 BasicCegarLoop]: trace histogram [44, 1, 1] [2018-07-23 13:51:34,043 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:34,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1878494829, now seen corresponding path program 44 times [2018-07-23 13:51:34,043 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:34,252 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 13:51:34,252 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,252 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:51:34,253 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,253 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 13:51:34,253 INFO L185 omatonBuilderFactory]: Interpolants [5696#(<= main_x 29), 5697#(<= main_x 30), 5698#(<= main_x 31), 5699#(<= main_x 32), 5700#(<= main_x 33), 5701#(<= main_x 34), 5702#(<= main_x 35), 5703#(<= main_x 36), 5704#(<= main_x 37), 5705#(<= main_x 38), 5706#(<= main_x 39), 5707#(<= main_x 40), 5708#(<= main_x 41), 5709#(<= main_x 42), 5710#(<= main_x 43), 5711#(<= main_x 44), 5665#true, 5666#false, 5667#(<= main_x 0), 5668#(<= main_x 1), 5669#(<= main_x 2), 5670#(<= main_x 3), 5671#(<= main_x 4), 5672#(<= main_x 5), 5673#(<= main_x 6), 5674#(<= main_x 7), 5675#(<= main_x 8), 5676#(<= main_x 9), 5677#(<= main_x 10), 5678#(<= main_x 11), 5679#(<= main_x 12), 5680#(<= main_x 13), 5681#(<= main_x 14), 5682#(<= main_x 15), 5683#(<= main_x 16), 5684#(<= main_x 17), 5685#(<= main_x 18), 5686#(<= main_x 19), 5687#(<= main_x 20), 5688#(<= main_x 21), 5689#(<= main_x 22), 5690#(<= main_x 23), 5691#(<= main_x 24), 5692#(<= main_x 25), 5693#(<= main_x 26), 5694#(<= main_x 27), 5695#(<= main_x 28)] [2018-07-23 13:51:34,254 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 13:51:34,254 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:51:34,257 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:51:34,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:51:34,258 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 47 states. [2018-07-23 13:51:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:34,281 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:51:34,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:51:34,281 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 46 [2018-07-23 13:51:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:34,282 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:51:34,282 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:51:34,283 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:51:34,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:51:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:51:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:51:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:51:34,285 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 46 [2018-07-23 13:51:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:34,285 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:51:34,285 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:51:34,285 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:51:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:51:34,286 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:34,286 INFO L357 BasicCegarLoop]: trace histogram [45, 1, 1] [2018-07-23 13:51:34,286 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:34,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1896202680, now seen corresponding path program 45 times [2018-07-23 13:51:34,287 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:34,501 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 13:51:34,501 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:51:34,501 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,502 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 13:51:34,502 INFO L185 omatonBuilderFactory]: Interpolants [5952#(<= main_x 44), 5953#(<= main_x 45), 5906#true, 5907#false, 5908#(<= main_x 0), 5909#(<= main_x 1), 5910#(<= main_x 2), 5911#(<= main_x 3), 5912#(<= main_x 4), 5913#(<= main_x 5), 5914#(<= main_x 6), 5915#(<= main_x 7), 5916#(<= main_x 8), 5917#(<= main_x 9), 5918#(<= main_x 10), 5919#(<= main_x 11), 5920#(<= main_x 12), 5921#(<= main_x 13), 5922#(<= main_x 14), 5923#(<= main_x 15), 5924#(<= main_x 16), 5925#(<= main_x 17), 5926#(<= main_x 18), 5927#(<= main_x 19), 5928#(<= main_x 20), 5929#(<= main_x 21), 5930#(<= main_x 22), 5931#(<= main_x 23), 5932#(<= main_x 24), 5933#(<= main_x 25), 5934#(<= main_x 26), 5935#(<= main_x 27), 5936#(<= main_x 28), 5937#(<= main_x 29), 5938#(<= main_x 30), 5939#(<= main_x 31), 5940#(<= main_x 32), 5941#(<= main_x 33), 5942#(<= main_x 34), 5943#(<= main_x 35), 5944#(<= main_x 36), 5945#(<= main_x 37), 5946#(<= main_x 38), 5947#(<= main_x 39), 5948#(<= main_x 40), 5949#(<= main_x 41), 5950#(<= main_x 42), 5951#(<= main_x 43)] [2018-07-23 13:51:34,502 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 13:51:34,503 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:51:34,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:51:34,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:51:34,504 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 48 states. [2018-07-23 13:51:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:34,525 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-07-23 13:51:34,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:51:34,525 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 47 [2018-07-23 13:51:34,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:34,526 INFO L225 Difference]: With dead ends: 50 [2018-07-23 13:51:34,526 INFO L226 Difference]: Without dead ends: 49 [2018-07-23 13:51:34,527 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:51:34,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-07-23 13:51:34,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-07-23 13:51:34,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-07-23 13:51:34,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2018-07-23 13:51:34,530 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 47 [2018-07-23 13:51:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:34,530 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2018-07-23 13:51:34,530 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:51:34,530 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2018-07-23 13:51:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 13:51:34,531 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:34,531 INFO L357 BasicCegarLoop]: trace histogram [46, 1, 1] [2018-07-23 13:51:34,531 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:34,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1347258829, now seen corresponding path program 46 times [2018-07-23 13:51:34,531 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:34,741 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 13:51:34,741 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,741 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:51:34,741 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,741 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 13:51:34,742 INFO L185 omatonBuilderFactory]: Interpolants [6152#true, 6153#false, 6154#(<= main_x 0), 6155#(<= main_x 1), 6156#(<= main_x 2), 6157#(<= main_x 3), 6158#(<= main_x 4), 6159#(<= main_x 5), 6160#(<= main_x 6), 6161#(<= main_x 7), 6162#(<= main_x 8), 6163#(<= main_x 9), 6164#(<= main_x 10), 6165#(<= main_x 11), 6166#(<= main_x 12), 6167#(<= main_x 13), 6168#(<= main_x 14), 6169#(<= main_x 15), 6170#(<= main_x 16), 6171#(<= main_x 17), 6172#(<= main_x 18), 6173#(<= main_x 19), 6174#(<= main_x 20), 6175#(<= main_x 21), 6176#(<= main_x 22), 6177#(<= main_x 23), 6178#(<= main_x 24), 6179#(<= main_x 25), 6180#(<= main_x 26), 6181#(<= main_x 27), 6182#(<= main_x 28), 6183#(<= main_x 29), 6184#(<= main_x 30), 6185#(<= main_x 31), 6186#(<= main_x 32), 6187#(<= main_x 33), 6188#(<= main_x 34), 6189#(<= main_x 35), 6190#(<= main_x 36), 6191#(<= main_x 37), 6192#(<= main_x 38), 6193#(<= main_x 39), 6194#(<= main_x 40), 6195#(<= main_x 41), 6196#(<= main_x 42), 6197#(<= main_x 43), 6198#(<= main_x 44), 6199#(<= main_x 45), 6200#(<= main_x 46)] [2018-07-23 13:51:34,742 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 13:51:34,742 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:51:34,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:51:34,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:51:34,744 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 49 states. [2018-07-23 13:51:34,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:34,771 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:51:34,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:51:34,771 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 48 [2018-07-23 13:51:34,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:34,772 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:51:34,772 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:51:34,773 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:51:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:51:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:51:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:51:34,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:51:34,775 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 48 [2018-07-23 13:51:34,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:34,776 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:51:34,776 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:51:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:51:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:51:34,776 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:34,776 INFO L357 BasicCegarLoop]: trace histogram [47, 1, 1] [2018-07-23 13:51:34,777 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:34,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1184649496, now seen corresponding path program 47 times [2018-07-23 13:51:34,777 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:34,984 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 13:51:34,984 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:34,984 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:51:34,985 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:34,985 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 13:51:34,985 INFO L185 omatonBuilderFactory]: Interpolants [6403#true, 6404#false, 6405#(<= main_x 0), 6406#(<= main_x 1), 6407#(<= main_x 2), 6408#(<= main_x 3), 6409#(<= main_x 4), 6410#(<= main_x 5), 6411#(<= main_x 6), 6412#(<= main_x 7), 6413#(<= main_x 8), 6414#(<= main_x 9), 6415#(<= main_x 10), 6416#(<= main_x 11), 6417#(<= main_x 12), 6418#(<= main_x 13), 6419#(<= main_x 14), 6420#(<= main_x 15), 6421#(<= main_x 16), 6422#(<= main_x 17), 6423#(<= main_x 18), 6424#(<= main_x 19), 6425#(<= main_x 20), 6426#(<= main_x 21), 6427#(<= main_x 22), 6428#(<= main_x 23), 6429#(<= main_x 24), 6430#(<= main_x 25), 6431#(<= main_x 26), 6432#(<= main_x 27), 6433#(<= main_x 28), 6434#(<= main_x 29), 6435#(<= main_x 30), 6436#(<= main_x 31), 6437#(<= main_x 32), 6438#(<= main_x 33), 6439#(<= main_x 34), 6440#(<= main_x 35), 6441#(<= main_x 36), 6442#(<= main_x 37), 6443#(<= main_x 38), 6444#(<= main_x 39), 6445#(<= main_x 40), 6446#(<= main_x 41), 6447#(<= main_x 42), 6448#(<= main_x 43), 6449#(<= main_x 44), 6450#(<= main_x 45), 6451#(<= main_x 46), 6452#(<= main_x 47)] [2018-07-23 13:51:34,985 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 13:51:34,986 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:51:34,986 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:51:34,987 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:51:34,987 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 50 states. [2018-07-23 13:51:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:35,016 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-07-23 13:51:35,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:51:35,016 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 49 [2018-07-23 13:51:35,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:35,017 INFO L225 Difference]: With dead ends: 52 [2018-07-23 13:51:35,017 INFO L226 Difference]: Without dead ends: 51 [2018-07-23 13:51:35,018 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:51:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-07-23 13:51:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-07-23 13:51:35,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-07-23 13:51:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-07-23 13:51:35,020 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 49 [2018-07-23 13:51:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:35,020 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-07-23 13:51:35,020 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:51:35,021 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-07-23 13:51:35,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-07-23 13:51:35,021 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:35,021 INFO L357 BasicCegarLoop]: trace histogram [48, 1, 1] [2018-07-23 13:51:35,021 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:35,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1930571053, now seen corresponding path program 48 times [2018-07-23 13:51:35,022 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:35,233 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 13:51:35,233 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:35,234 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:51:35,234 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:35,234 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 13:51:35,234 INFO L185 omatonBuilderFactory]: Interpolants [6659#true, 6660#false, 6661#(<= main_x 0), 6662#(<= main_x 1), 6663#(<= main_x 2), 6664#(<= main_x 3), 6665#(<= main_x 4), 6666#(<= main_x 5), 6667#(<= main_x 6), 6668#(<= main_x 7), 6669#(<= main_x 8), 6670#(<= main_x 9), 6671#(<= main_x 10), 6672#(<= main_x 11), 6673#(<= main_x 12), 6674#(<= main_x 13), 6675#(<= main_x 14), 6676#(<= main_x 15), 6677#(<= main_x 16), 6678#(<= main_x 17), 6679#(<= main_x 18), 6680#(<= main_x 19), 6681#(<= main_x 20), 6682#(<= main_x 21), 6683#(<= main_x 22), 6684#(<= main_x 23), 6685#(<= main_x 24), 6686#(<= main_x 25), 6687#(<= main_x 26), 6688#(<= main_x 27), 6689#(<= main_x 28), 6690#(<= main_x 29), 6691#(<= main_x 30), 6692#(<= main_x 31), 6693#(<= main_x 32), 6694#(<= main_x 33), 6695#(<= main_x 34), 6696#(<= main_x 35), 6697#(<= main_x 36), 6698#(<= main_x 37), 6699#(<= main_x 38), 6700#(<= main_x 39), 6701#(<= main_x 40), 6702#(<= main_x 41), 6703#(<= main_x 42), 6704#(<= main_x 43), 6705#(<= main_x 44), 6706#(<= main_x 45), 6707#(<= main_x 46), 6708#(<= main_x 47), 6709#(<= main_x 48)] [2018-07-23 13:51:35,235 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 13:51:35,235 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:51:35,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:51:35,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:51:35,236 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 51 states. [2018-07-23 13:51:35,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:35,264 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:51:35,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:51:35,265 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 50 [2018-07-23 13:51:35,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:35,265 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:51:35,265 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:51:35,266 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:51:35,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:51:35,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:51:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:51:35,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:51:35,269 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 50 [2018-07-23 13:51:35,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:35,269 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:51:35,269 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:51:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:51:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:51:35,270 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:35,270 INFO L357 BasicCegarLoop]: trace histogram [49, 1, 1] [2018-07-23 13:51:35,270 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:35,270 INFO L82 PathProgramCache]: Analyzing trace with hash 281839736, now seen corresponding path program 49 times [2018-07-23 13:51:35,270 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:35,483 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 13:51:35,484 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:35,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:51:35,484 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:35,484 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 13:51:35,484 INFO L185 omatonBuilderFactory]: Interpolants [6920#true, 6921#false, 6922#(<= main_x 0), 6923#(<= main_x 1), 6924#(<= main_x 2), 6925#(<= main_x 3), 6926#(<= main_x 4), 6927#(<= main_x 5), 6928#(<= main_x 6), 6929#(<= main_x 7), 6930#(<= main_x 8), 6931#(<= main_x 9), 6932#(<= main_x 10), 6933#(<= main_x 11), 6934#(<= main_x 12), 6935#(<= main_x 13), 6936#(<= main_x 14), 6937#(<= main_x 15), 6938#(<= main_x 16), 6939#(<= main_x 17), 6940#(<= main_x 18), 6941#(<= main_x 19), 6942#(<= main_x 20), 6943#(<= main_x 21), 6944#(<= main_x 22), 6945#(<= main_x 23), 6946#(<= main_x 24), 6947#(<= main_x 25), 6948#(<= main_x 26), 6949#(<= main_x 27), 6950#(<= main_x 28), 6951#(<= main_x 29), 6952#(<= main_x 30), 6953#(<= main_x 31), 6954#(<= main_x 32), 6955#(<= main_x 33), 6956#(<= main_x 34), 6957#(<= main_x 35), 6958#(<= main_x 36), 6959#(<= main_x 37), 6960#(<= main_x 38), 6961#(<= main_x 39), 6962#(<= main_x 40), 6963#(<= main_x 41), 6964#(<= main_x 42), 6965#(<= main_x 43), 6966#(<= main_x 44), 6967#(<= main_x 45), 6968#(<= main_x 46), 6969#(<= main_x 47), 6970#(<= main_x 48), 6971#(<= main_x 49)] [2018-07-23 13:51:35,485 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 13:51:35,485 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:51:35,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:51:35,487 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:51:35,487 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 52 states. [2018-07-23 13:51:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:35,519 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-07-23 13:51:35,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:51:35,519 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 51 [2018-07-23 13:51:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:35,520 INFO L225 Difference]: With dead ends: 54 [2018-07-23 13:51:35,520 INFO L226 Difference]: Without dead ends: 53 [2018-07-23 13:51:35,521 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:51:35,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-07-23 13:51:35,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-07-23 13:51:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-07-23 13:51:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2018-07-23 13:51:35,524 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 51 [2018-07-23 13:51:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:35,524 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2018-07-23 13:51:35,524 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:51:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2018-07-23 13:51:35,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-23 13:51:35,526 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:35,526 INFO L357 BasicCegarLoop]: trace histogram [50, 1, 1] [2018-07-23 13:51:35,526 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:35,526 INFO L82 PathProgramCache]: Analyzing trace with hash 147097459, now seen corresponding path program 50 times [2018-07-23 13:51:35,526 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:35,811 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 13:51:35,811 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:35,811 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:51:35,812 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:35,812 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 13:51:35,812 INFO L185 omatonBuilderFactory]: Interpolants [7186#true, 7187#false, 7188#(<= main_x 0), 7189#(<= main_x 1), 7190#(<= main_x 2), 7191#(<= main_x 3), 7192#(<= main_x 4), 7193#(<= main_x 5), 7194#(<= main_x 6), 7195#(<= main_x 7), 7196#(<= main_x 8), 7197#(<= main_x 9), 7198#(<= main_x 10), 7199#(<= main_x 11), 7200#(<= main_x 12), 7201#(<= main_x 13), 7202#(<= main_x 14), 7203#(<= main_x 15), 7204#(<= main_x 16), 7205#(<= main_x 17), 7206#(<= main_x 18), 7207#(<= main_x 19), 7208#(<= main_x 20), 7209#(<= main_x 21), 7210#(<= main_x 22), 7211#(<= main_x 23), 7212#(<= main_x 24), 7213#(<= main_x 25), 7214#(<= main_x 26), 7215#(<= main_x 27), 7216#(<= main_x 28), 7217#(<= main_x 29), 7218#(<= main_x 30), 7219#(<= main_x 31), 7220#(<= main_x 32), 7221#(<= main_x 33), 7222#(<= main_x 34), 7223#(<= main_x 35), 7224#(<= main_x 36), 7225#(<= main_x 37), 7226#(<= main_x 38), 7227#(<= main_x 39), 7228#(<= main_x 40), 7229#(<= main_x 41), 7230#(<= main_x 42), 7231#(<= main_x 43), 7232#(<= main_x 44), 7233#(<= main_x 45), 7234#(<= main_x 46), 7235#(<= main_x 47), 7236#(<= main_x 48), 7237#(<= main_x 49), 7238#(<= main_x 50)] [2018-07-23 13:51:35,813 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 13:51:35,813 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:51:35,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:51:35,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:51:35,815 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 53 states. [2018-07-23 13:51:35,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:35,848 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:51:35,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:51:35,848 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 52 [2018-07-23 13:51:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:35,849 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:51:35,849 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:51:35,850 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:51:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:51:35,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:51:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:51:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:51:35,853 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 52 [2018-07-23 13:51:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:35,853 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:51:35,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:51:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:51:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:51:35,854 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:35,854 INFO L357 BasicCegarLoop]: trace histogram [51, 1, 1] [2018-07-23 13:51:35,854 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:35,854 INFO L82 PathProgramCache]: Analyzing trace with hash 265054168, now seen corresponding path program 51 times [2018-07-23 13:51:35,854 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:36,167 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 13:51:36,167 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:36,168 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:51:36,168 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:36,168 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 13:51:36,171 INFO L185 omatonBuilderFactory]: Interpolants [7457#true, 7458#false, 7459#(<= main_x 0), 7460#(<= main_x 1), 7461#(<= main_x 2), 7462#(<= main_x 3), 7463#(<= main_x 4), 7464#(<= main_x 5), 7465#(<= main_x 6), 7466#(<= main_x 7), 7467#(<= main_x 8), 7468#(<= main_x 9), 7469#(<= main_x 10), 7470#(<= main_x 11), 7471#(<= main_x 12), 7472#(<= main_x 13), 7473#(<= main_x 14), 7474#(<= main_x 15), 7475#(<= main_x 16), 7476#(<= main_x 17), 7477#(<= main_x 18), 7478#(<= main_x 19), 7479#(<= main_x 20), 7480#(<= main_x 21), 7481#(<= main_x 22), 7482#(<= main_x 23), 7483#(<= main_x 24), 7484#(<= main_x 25), 7485#(<= main_x 26), 7486#(<= main_x 27), 7487#(<= main_x 28), 7488#(<= main_x 29), 7489#(<= main_x 30), 7490#(<= main_x 31), 7491#(<= main_x 32), 7492#(<= main_x 33), 7493#(<= main_x 34), 7494#(<= main_x 35), 7495#(<= main_x 36), 7496#(<= main_x 37), 7497#(<= main_x 38), 7498#(<= main_x 39), 7499#(<= main_x 40), 7500#(<= main_x 41), 7501#(<= main_x 42), 7502#(<= main_x 43), 7503#(<= main_x 44), 7504#(<= main_x 45), 7505#(<= main_x 46), 7506#(<= main_x 47), 7507#(<= main_x 48), 7508#(<= main_x 49), 7509#(<= main_x 50), 7510#(<= main_x 51)] [2018-07-23 13:51:36,172 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 13:51:36,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:51:36,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:51:36,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:51:36,174 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 54 states. [2018-07-23 13:51:36,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:36,203 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2018-07-23 13:51:36,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:51:36,204 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 53 [2018-07-23 13:51:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:36,204 INFO L225 Difference]: With dead ends: 56 [2018-07-23 13:51:36,205 INFO L226 Difference]: Without dead ends: 55 [2018-07-23 13:51:36,205 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:51:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-07-23 13:51:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-07-23 13:51:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-07-23 13:51:36,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2018-07-23 13:51:36,211 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 53 [2018-07-23 13:51:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:36,211 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2018-07-23 13:51:36,212 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:51:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2018-07-23 13:51:36,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-23 13:51:36,212 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:36,212 INFO L357 BasicCegarLoop]: trace histogram [52, 1, 1] [2018-07-23 13:51:36,212 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:36,213 INFO L82 PathProgramCache]: Analyzing trace with hash -373255149, now seen corresponding path program 52 times [2018-07-23 13:51:36,213 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:36,422 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 13:51:36,422 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:36,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:51:36,422 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:36,423 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 13:51:36,423 INFO L185 omatonBuilderFactory]: Interpolants [7733#true, 7734#false, 7735#(<= main_x 0), 7736#(<= main_x 1), 7737#(<= main_x 2), 7738#(<= main_x 3), 7739#(<= main_x 4), 7740#(<= main_x 5), 7741#(<= main_x 6), 7742#(<= main_x 7), 7743#(<= main_x 8), 7744#(<= main_x 9), 7745#(<= main_x 10), 7746#(<= main_x 11), 7747#(<= main_x 12), 7748#(<= main_x 13), 7749#(<= main_x 14), 7750#(<= main_x 15), 7751#(<= main_x 16), 7752#(<= main_x 17), 7753#(<= main_x 18), 7754#(<= main_x 19), 7755#(<= main_x 20), 7756#(<= main_x 21), 7757#(<= main_x 22), 7758#(<= main_x 23), 7759#(<= main_x 24), 7760#(<= main_x 25), 7761#(<= main_x 26), 7762#(<= main_x 27), 7763#(<= main_x 28), 7764#(<= main_x 29), 7765#(<= main_x 30), 7766#(<= main_x 31), 7767#(<= main_x 32), 7768#(<= main_x 33), 7769#(<= main_x 34), 7770#(<= main_x 35), 7771#(<= main_x 36), 7772#(<= main_x 37), 7773#(<= main_x 38), 7774#(<= main_x 39), 7775#(<= main_x 40), 7776#(<= main_x 41), 7777#(<= main_x 42), 7778#(<= main_x 43), 7779#(<= main_x 44), 7780#(<= main_x 45), 7781#(<= main_x 46), 7782#(<= main_x 47), 7783#(<= main_x 48), 7784#(<= main_x 49), 7785#(<= main_x 50), 7786#(<= main_x 51), 7787#(<= main_x 52)] [2018-07-23 13:51:36,423 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 13:51:36,424 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:51:36,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:51:36,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:51:36,425 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 55 states. [2018-07-23 13:51:36,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:36,457 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:51:36,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:51:36,457 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 54 [2018-07-23 13:51:36,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:36,458 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:51:36,458 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:51:36,459 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:51:36,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:51:36,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:51:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:51:36,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:51:36,462 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 54 [2018-07-23 13:51:36,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:36,462 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:51:36,462 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:51:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:51:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:51:36,462 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:36,463 INFO L357 BasicCegarLoop]: trace histogram [53, 1, 1] [2018-07-23 13:51:36,463 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:36,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1313992504, now seen corresponding path program 53 times [2018-07-23 13:51:36,463 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:36,674 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 13:51:36,675 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:36,675 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:51:36,675 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:36,676 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 13:51:36,676 INFO L185 omatonBuilderFactory]: Interpolants [8064#(<= main_x 48), 8065#(<= main_x 49), 8066#(<= main_x 50), 8067#(<= main_x 51), 8068#(<= main_x 52), 8069#(<= main_x 53), 8014#true, 8015#false, 8016#(<= main_x 0), 8017#(<= main_x 1), 8018#(<= main_x 2), 8019#(<= main_x 3), 8020#(<= main_x 4), 8021#(<= main_x 5), 8022#(<= main_x 6), 8023#(<= main_x 7), 8024#(<= main_x 8), 8025#(<= main_x 9), 8026#(<= main_x 10), 8027#(<= main_x 11), 8028#(<= main_x 12), 8029#(<= main_x 13), 8030#(<= main_x 14), 8031#(<= main_x 15), 8032#(<= main_x 16), 8033#(<= main_x 17), 8034#(<= main_x 18), 8035#(<= main_x 19), 8036#(<= main_x 20), 8037#(<= main_x 21), 8038#(<= main_x 22), 8039#(<= main_x 23), 8040#(<= main_x 24), 8041#(<= main_x 25), 8042#(<= main_x 26), 8043#(<= main_x 27), 8044#(<= main_x 28), 8045#(<= main_x 29), 8046#(<= main_x 30), 8047#(<= main_x 31), 8048#(<= main_x 32), 8049#(<= main_x 33), 8050#(<= main_x 34), 8051#(<= main_x 35), 8052#(<= main_x 36), 8053#(<= main_x 37), 8054#(<= main_x 38), 8055#(<= main_x 39), 8056#(<= main_x 40), 8057#(<= main_x 41), 8058#(<= main_x 42), 8059#(<= main_x 43), 8060#(<= main_x 44), 8061#(<= main_x 45), 8062#(<= main_x 46), 8063#(<= main_x 47)] [2018-07-23 13:51:36,676 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 13:51:36,677 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:51:36,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:51:36,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:36,678 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 56 states. [2018-07-23 13:51:36,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:36,708 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2018-07-23 13:51:36,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:51:36,708 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 55 [2018-07-23 13:51:36,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:36,709 INFO L225 Difference]: With dead ends: 58 [2018-07-23 13:51:36,709 INFO L226 Difference]: Without dead ends: 57 [2018-07-23 13:51:36,710 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-07-23 13:51:36,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-07-23 13:51:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-07-23 13:51:36,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2018-07-23 13:51:36,713 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 55 [2018-07-23 13:51:36,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:36,713 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2018-07-23 13:51:36,713 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:51:36,713 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2018-07-23 13:51:36,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-23 13:51:36,714 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:36,714 INFO L357 BasicCegarLoop]: trace histogram [54, 1, 1] [2018-07-23 13:51:36,714 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:36,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2079062195, now seen corresponding path program 54 times [2018-07-23 13:51:36,715 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:36,939 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 13:51:36,940 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:36,940 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:51:36,940 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:36,940 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 13:51:36,941 INFO L185 omatonBuilderFactory]: Interpolants [8320#(<= main_x 18), 8321#(<= main_x 19), 8322#(<= main_x 20), 8323#(<= main_x 21), 8324#(<= main_x 22), 8325#(<= main_x 23), 8326#(<= main_x 24), 8327#(<= main_x 25), 8328#(<= main_x 26), 8329#(<= main_x 27), 8330#(<= main_x 28), 8331#(<= main_x 29), 8332#(<= main_x 30), 8333#(<= main_x 31), 8334#(<= main_x 32), 8335#(<= main_x 33), 8336#(<= main_x 34), 8337#(<= main_x 35), 8338#(<= main_x 36), 8339#(<= main_x 37), 8340#(<= main_x 38), 8341#(<= main_x 39), 8342#(<= main_x 40), 8343#(<= main_x 41), 8344#(<= main_x 42), 8345#(<= main_x 43), 8346#(<= main_x 44), 8347#(<= main_x 45), 8348#(<= main_x 46), 8349#(<= main_x 47), 8350#(<= main_x 48), 8351#(<= main_x 49), 8352#(<= main_x 50), 8353#(<= main_x 51), 8354#(<= main_x 52), 8355#(<= main_x 53), 8356#(<= main_x 54), 8300#true, 8301#false, 8302#(<= main_x 0), 8303#(<= main_x 1), 8304#(<= main_x 2), 8305#(<= main_x 3), 8306#(<= main_x 4), 8307#(<= main_x 5), 8308#(<= main_x 6), 8309#(<= main_x 7), 8310#(<= main_x 8), 8311#(<= main_x 9), 8312#(<= main_x 10), 8313#(<= main_x 11), 8314#(<= main_x 12), 8315#(<= main_x 13), 8316#(<= main_x 14), 8317#(<= main_x 15), 8318#(<= main_x 16), 8319#(<= main_x 17)] [2018-07-23 13:51:36,941 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 13:51:36,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:51:36,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:51:36,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:36,943 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand 57 states. [2018-07-23 13:51:36,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:36,974 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:51:36,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:51:36,974 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 56 [2018-07-23 13:51:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:36,975 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:51:36,975 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:51:36,976 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:36,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:51:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:51:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:51:36,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:51:36,979 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 56 [2018-07-23 13:51:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:36,979 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:51:36,979 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:51:36,979 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:51:36,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:51:36,980 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:36,980 INFO L357 BasicCegarLoop]: trace histogram [55, 1, 1] [2018-07-23 13:51:36,980 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:36,980 INFO L82 PathProgramCache]: Analyzing trace with hash 26418840, now seen corresponding path program 55 times [2018-07-23 13:51:36,980 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:37,215 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 13:51:37,215 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:37,215 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:51:37,215 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:37,216 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 13:51:37,216 INFO L185 omatonBuilderFactory]: Interpolants [8591#true, 8592#false, 8593#(<= main_x 0), 8594#(<= main_x 1), 8595#(<= main_x 2), 8596#(<= main_x 3), 8597#(<= main_x 4), 8598#(<= main_x 5), 8599#(<= main_x 6), 8600#(<= main_x 7), 8601#(<= main_x 8), 8602#(<= main_x 9), 8603#(<= main_x 10), 8604#(<= main_x 11), 8605#(<= main_x 12), 8606#(<= main_x 13), 8607#(<= main_x 14), 8608#(<= main_x 15), 8609#(<= main_x 16), 8610#(<= main_x 17), 8611#(<= main_x 18), 8612#(<= main_x 19), 8613#(<= main_x 20), 8614#(<= main_x 21), 8615#(<= main_x 22), 8616#(<= main_x 23), 8617#(<= main_x 24), 8618#(<= main_x 25), 8619#(<= main_x 26), 8620#(<= main_x 27), 8621#(<= main_x 28), 8622#(<= main_x 29), 8623#(<= main_x 30), 8624#(<= main_x 31), 8625#(<= main_x 32), 8626#(<= main_x 33), 8627#(<= main_x 34), 8628#(<= main_x 35), 8629#(<= main_x 36), 8630#(<= main_x 37), 8631#(<= main_x 38), 8632#(<= main_x 39), 8633#(<= main_x 40), 8634#(<= main_x 41), 8635#(<= main_x 42), 8636#(<= main_x 43), 8637#(<= main_x 44), 8638#(<= main_x 45), 8639#(<= main_x 46), 8640#(<= main_x 47), 8641#(<= main_x 48), 8642#(<= main_x 49), 8643#(<= main_x 50), 8644#(<= main_x 51), 8645#(<= main_x 52), 8646#(<= main_x 53), 8647#(<= main_x 54), 8648#(<= main_x 55)] [2018-07-23 13:51:37,217 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 13:51:37,217 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:51:37,217 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:51:37,218 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:37,218 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 58 states. [2018-07-23 13:51:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:37,260 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2018-07-23 13:51:37,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:51:37,260 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 57 [2018-07-23 13:51:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:37,261 INFO L225 Difference]: With dead ends: 60 [2018-07-23 13:51:37,261 INFO L226 Difference]: Without dead ends: 59 [2018-07-23 13:51:37,262 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:37,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-07-23 13:51:37,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-07-23 13:51:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-07-23 13:51:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2018-07-23 13:51:37,265 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 57 [2018-07-23 13:51:37,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:37,265 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2018-07-23 13:51:37,265 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:51:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2018-07-23 13:51:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-07-23 13:51:37,266 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:37,266 INFO L357 BasicCegarLoop]: trace histogram [56, 1, 1] [2018-07-23 13:51:37,266 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:37,266 INFO L82 PathProgramCache]: Analyzing trace with hash 818984275, now seen corresponding path program 56 times [2018-07-23 13:51:37,267 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:37,510 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 13:51:37,510 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:37,511 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:51:37,511 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:37,511 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 13:51:37,511 INFO L185 omatonBuilderFactory]: Interpolants [8887#true, 8888#false, 8889#(<= main_x 0), 8890#(<= main_x 1), 8891#(<= main_x 2), 8892#(<= main_x 3), 8893#(<= main_x 4), 8894#(<= main_x 5), 8895#(<= main_x 6), 8896#(<= main_x 7), 8897#(<= main_x 8), 8898#(<= main_x 9), 8899#(<= main_x 10), 8900#(<= main_x 11), 8901#(<= main_x 12), 8902#(<= main_x 13), 8903#(<= main_x 14), 8904#(<= main_x 15), 8905#(<= main_x 16), 8906#(<= main_x 17), 8907#(<= main_x 18), 8908#(<= main_x 19), 8909#(<= main_x 20), 8910#(<= main_x 21), 8911#(<= main_x 22), 8912#(<= main_x 23), 8913#(<= main_x 24), 8914#(<= main_x 25), 8915#(<= main_x 26), 8916#(<= main_x 27), 8917#(<= main_x 28), 8918#(<= main_x 29), 8919#(<= main_x 30), 8920#(<= main_x 31), 8921#(<= main_x 32), 8922#(<= main_x 33), 8923#(<= main_x 34), 8924#(<= main_x 35), 8925#(<= main_x 36), 8926#(<= main_x 37), 8927#(<= main_x 38), 8928#(<= main_x 39), 8929#(<= main_x 40), 8930#(<= main_x 41), 8931#(<= main_x 42), 8932#(<= main_x 43), 8933#(<= main_x 44), 8934#(<= main_x 45), 8935#(<= main_x 46), 8936#(<= main_x 47), 8937#(<= main_x 48), 8938#(<= main_x 49), 8939#(<= main_x 50), 8940#(<= main_x 51), 8941#(<= main_x 52), 8942#(<= main_x 53), 8943#(<= main_x 54), 8944#(<= main_x 55), 8945#(<= main_x 56)] [2018-07-23 13:51:37,512 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 13:51:37,512 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:51:37,512 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:51:37,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:51:37,514 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 59 states. [2018-07-23 13:51:37,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:37,550 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:51:37,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:51:37,550 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 58 [2018-07-23 13:51:37,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:37,551 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:51:37,551 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:51:37,552 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:51:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:51:37,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:51:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:51:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:51:37,555 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 58 [2018-07-23 13:51:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:37,556 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:51:37,556 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:51:37,556 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:51:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:51:37,556 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:37,556 INFO L357 BasicCegarLoop]: trace histogram [57, 1, 1] [2018-07-23 13:51:37,557 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:37,557 INFO L82 PathProgramCache]: Analyzing trace with hash -381291016, now seen corresponding path program 57 times [2018-07-23 13:51:37,557 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:37,815 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 13:51:37,816 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:37,816 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:51:37,816 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:37,817 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 13:51:37,817 INFO L185 omatonBuilderFactory]: Interpolants [9216#(<= main_x 26), 9217#(<= main_x 27), 9218#(<= main_x 28), 9219#(<= main_x 29), 9220#(<= main_x 30), 9221#(<= main_x 31), 9222#(<= main_x 32), 9223#(<= main_x 33), 9224#(<= main_x 34), 9225#(<= main_x 35), 9226#(<= main_x 36), 9227#(<= main_x 37), 9228#(<= main_x 38), 9229#(<= main_x 39), 9230#(<= main_x 40), 9231#(<= main_x 41), 9232#(<= main_x 42), 9233#(<= main_x 43), 9234#(<= main_x 44), 9235#(<= main_x 45), 9236#(<= main_x 46), 9237#(<= main_x 47), 9238#(<= main_x 48), 9239#(<= main_x 49), 9240#(<= main_x 50), 9241#(<= main_x 51), 9242#(<= main_x 52), 9243#(<= main_x 53), 9244#(<= main_x 54), 9245#(<= main_x 55), 9246#(<= main_x 56), 9247#(<= main_x 57), 9188#true, 9189#false, 9190#(<= main_x 0), 9191#(<= main_x 1), 9192#(<= main_x 2), 9193#(<= main_x 3), 9194#(<= main_x 4), 9195#(<= main_x 5), 9196#(<= main_x 6), 9197#(<= main_x 7), 9198#(<= main_x 8), 9199#(<= main_x 9), 9200#(<= main_x 10), 9201#(<= main_x 11), 9202#(<= main_x 12), 9203#(<= main_x 13), 9204#(<= main_x 14), 9205#(<= main_x 15), 9206#(<= main_x 16), 9207#(<= main_x 17), 9208#(<= main_x 18), 9209#(<= main_x 19), 9210#(<= main_x 20), 9211#(<= main_x 21), 9212#(<= main_x 22), 9213#(<= main_x 23), 9214#(<= main_x 24), 9215#(<= main_x 25)] [2018-07-23 13:51:37,817 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 13:51:37,818 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:51:37,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:51:37,819 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:51:37,819 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 60 states. [2018-07-23 13:51:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:37,851 INFO L93 Difference]: Finished difference Result 62 states and 62 transitions. [2018-07-23 13:51:37,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:51:37,851 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 59 [2018-07-23 13:51:37,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:37,852 INFO L225 Difference]: With dead ends: 62 [2018-07-23 13:51:37,852 INFO L226 Difference]: Without dead ends: 61 [2018-07-23 13:51:37,853 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:51:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-07-23 13:51:37,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-07-23 13:51:37,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-23 13:51:37,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2018-07-23 13:51:37,856 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 59 [2018-07-23 13:51:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:37,856 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2018-07-23 13:51:37,856 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:51:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2018-07-23 13:51:37,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-07-23 13:51:37,857 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:37,857 INFO L357 BasicCegarLoop]: trace histogram [58, 1, 1] [2018-07-23 13:51:37,857 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:37,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1064880627, now seen corresponding path program 58 times [2018-07-23 13:51:37,858 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:38,145 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 13:51:38,146 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:38,146 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:51:38,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:38,146 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 13:51:38,147 INFO L185 omatonBuilderFactory]: Interpolants [9494#true, 9495#false, 9496#(<= main_x 0), 9497#(<= main_x 1), 9498#(<= main_x 2), 9499#(<= main_x 3), 9500#(<= main_x 4), 9501#(<= main_x 5), 9502#(<= main_x 6), 9503#(<= main_x 7), 9504#(<= main_x 8), 9505#(<= main_x 9), 9506#(<= main_x 10), 9507#(<= main_x 11), 9508#(<= main_x 12), 9509#(<= main_x 13), 9510#(<= main_x 14), 9511#(<= main_x 15), 9512#(<= main_x 16), 9513#(<= main_x 17), 9514#(<= main_x 18), 9515#(<= main_x 19), 9516#(<= main_x 20), 9517#(<= main_x 21), 9518#(<= main_x 22), 9519#(<= main_x 23), 9520#(<= main_x 24), 9521#(<= main_x 25), 9522#(<= main_x 26), 9523#(<= main_x 27), 9524#(<= main_x 28), 9525#(<= main_x 29), 9526#(<= main_x 30), 9527#(<= main_x 31), 9528#(<= main_x 32), 9529#(<= main_x 33), 9530#(<= main_x 34), 9531#(<= main_x 35), 9532#(<= main_x 36), 9533#(<= main_x 37), 9534#(<= main_x 38), 9535#(<= main_x 39), 9536#(<= main_x 40), 9537#(<= main_x 41), 9538#(<= main_x 42), 9539#(<= main_x 43), 9540#(<= main_x 44), 9541#(<= main_x 45), 9542#(<= main_x 46), 9543#(<= main_x 47), 9544#(<= main_x 48), 9545#(<= main_x 49), 9546#(<= main_x 50), 9547#(<= main_x 51), 9548#(<= main_x 52), 9549#(<= main_x 53), 9550#(<= main_x 54), 9551#(<= main_x 55), 9552#(<= main_x 56), 9553#(<= main_x 57), 9554#(<= main_x 58)] [2018-07-23 13:51:38,147 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 13:51:38,147 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:51:38,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:51:38,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:51:38,149 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand 61 states. [2018-07-23 13:51:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:38,194 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:51:38,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:51:38,194 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 60 [2018-07-23 13:51:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:38,195 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:51:38,195 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:51:38,196 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:51:38,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:51:38,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:51:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:51:38,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:51:38,199 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 60 [2018-07-23 13:51:38,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:38,199 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:51:38,199 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:51:38,200 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:51:38,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:51:38,200 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:38,200 INFO L357 BasicCegarLoop]: trace histogram [59, 1, 1] [2018-07-23 13:51:38,200 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:38,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1348438696, now seen corresponding path program 59 times [2018-07-23 13:51:38,201 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:38,527 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 13:51:38,528 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:38,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:51:38,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:38,529 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 13:51:38,529 INFO L185 omatonBuilderFactory]: Interpolants [9856#(<= main_x 49), 9857#(<= main_x 50), 9858#(<= main_x 51), 9859#(<= main_x 52), 9860#(<= main_x 53), 9861#(<= main_x 54), 9862#(<= main_x 55), 9863#(<= main_x 56), 9864#(<= main_x 57), 9865#(<= main_x 58), 9866#(<= main_x 59), 9805#true, 9806#false, 9807#(<= main_x 0), 9808#(<= main_x 1), 9809#(<= main_x 2), 9810#(<= main_x 3), 9811#(<= main_x 4), 9812#(<= main_x 5), 9813#(<= main_x 6), 9814#(<= main_x 7), 9815#(<= main_x 8), 9816#(<= main_x 9), 9817#(<= main_x 10), 9818#(<= main_x 11), 9819#(<= main_x 12), 9820#(<= main_x 13), 9821#(<= main_x 14), 9822#(<= main_x 15), 9823#(<= main_x 16), 9824#(<= main_x 17), 9825#(<= main_x 18), 9826#(<= main_x 19), 9827#(<= main_x 20), 9828#(<= main_x 21), 9829#(<= main_x 22), 9830#(<= main_x 23), 9831#(<= main_x 24), 9832#(<= main_x 25), 9833#(<= main_x 26), 9834#(<= main_x 27), 9835#(<= main_x 28), 9836#(<= main_x 29), 9837#(<= main_x 30), 9838#(<= main_x 31), 9839#(<= main_x 32), 9840#(<= main_x 33), 9841#(<= main_x 34), 9842#(<= main_x 35), 9843#(<= main_x 36), 9844#(<= main_x 37), 9845#(<= main_x 38), 9846#(<= main_x 39), 9847#(<= main_x 40), 9848#(<= main_x 41), 9849#(<= main_x 42), 9850#(<= main_x 43), 9851#(<= main_x 44), 9852#(<= main_x 45), 9853#(<= main_x 46), 9854#(<= main_x 47), 9855#(<= main_x 48)] [2018-07-23 13:51:38,530 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 13:51:38,530 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:51:38,531 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:51:38,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:38,532 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 62 states. [2018-07-23 13:51:38,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:38,570 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2018-07-23 13:51:38,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:51:38,570 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 61 [2018-07-23 13:51:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:38,571 INFO L225 Difference]: With dead ends: 64 [2018-07-23 13:51:38,571 INFO L226 Difference]: Without dead ends: 63 [2018-07-23 13:51:38,572 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-23 13:51:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-07-23 13:51:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-07-23 13:51:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2018-07-23 13:51:38,576 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 61 [2018-07-23 13:51:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:38,576 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2018-07-23 13:51:38,576 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:51:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2018-07-23 13:51:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-07-23 13:51:38,577 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:38,577 INFO L357 BasicCegarLoop]: trace histogram [60, 1, 1] [2018-07-23 13:51:38,578 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:38,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1148073619, now seen corresponding path program 60 times [2018-07-23 13:51:38,578 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:38,994 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 13:51:38,994 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:38,994 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:51:38,995 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:38,995 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 13:51:38,995 INFO L185 omatonBuilderFactory]: Interpolants [10121#true, 10122#false, 10123#(<= main_x 0), 10124#(<= main_x 1), 10125#(<= main_x 2), 10126#(<= main_x 3), 10127#(<= main_x 4), 10128#(<= main_x 5), 10129#(<= main_x 6), 10130#(<= main_x 7), 10131#(<= main_x 8), 10132#(<= main_x 9), 10133#(<= main_x 10), 10134#(<= main_x 11), 10135#(<= main_x 12), 10136#(<= main_x 13), 10137#(<= main_x 14), 10138#(<= main_x 15), 10139#(<= main_x 16), 10140#(<= main_x 17), 10141#(<= main_x 18), 10142#(<= main_x 19), 10143#(<= main_x 20), 10144#(<= main_x 21), 10145#(<= main_x 22), 10146#(<= main_x 23), 10147#(<= main_x 24), 10148#(<= main_x 25), 10149#(<= main_x 26), 10150#(<= main_x 27), 10151#(<= main_x 28), 10152#(<= main_x 29), 10153#(<= main_x 30), 10154#(<= main_x 31), 10155#(<= main_x 32), 10156#(<= main_x 33), 10157#(<= main_x 34), 10158#(<= main_x 35), 10159#(<= main_x 36), 10160#(<= main_x 37), 10161#(<= main_x 38), 10162#(<= main_x 39), 10163#(<= main_x 40), 10164#(<= main_x 41), 10165#(<= main_x 42), 10166#(<= main_x 43), 10167#(<= main_x 44), 10168#(<= main_x 45), 10169#(<= main_x 46), 10170#(<= main_x 47), 10171#(<= main_x 48), 10172#(<= main_x 49), 10173#(<= main_x 50), 10174#(<= main_x 51), 10175#(<= main_x 52), 10176#(<= main_x 53), 10177#(<= main_x 54), 10178#(<= main_x 55), 10179#(<= main_x 56), 10180#(<= main_x 57), 10181#(<= main_x 58), 10182#(<= main_x 59), 10183#(<= main_x 60)] [2018-07-23 13:51:38,996 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 13:51:38,996 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:51:38,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:51:38,997 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:51:38,998 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 63 states. [2018-07-23 13:51:39,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:39,049 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:51:39,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:51:39,049 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 62 [2018-07-23 13:51:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:39,050 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:51:39,050 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:51:39,051 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:51:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:51:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:51:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:51:39,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:51:39,055 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 62 [2018-07-23 13:51:39,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:39,055 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:51:39,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:51:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:51:39,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:51:39,056 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:39,056 INFO L357 BasicCegarLoop]: trace histogram [61, 1, 1] [2018-07-23 13:51:39,056 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:39,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1230544056, now seen corresponding path program 61 times [2018-07-23 13:51:39,056 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:39,333 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 13:51:39,334 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:39,334 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:51:39,334 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:39,334 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 13:51:39,334 INFO L185 omatonBuilderFactory]: Interpolants [10496#(<= main_x 52), 10497#(<= main_x 53), 10498#(<= main_x 54), 10499#(<= main_x 55), 10500#(<= main_x 56), 10501#(<= main_x 57), 10502#(<= main_x 58), 10503#(<= main_x 59), 10504#(<= main_x 60), 10505#(<= main_x 61), 10442#true, 10443#false, 10444#(<= main_x 0), 10445#(<= main_x 1), 10446#(<= main_x 2), 10447#(<= main_x 3), 10448#(<= main_x 4), 10449#(<= main_x 5), 10450#(<= main_x 6), 10451#(<= main_x 7), 10452#(<= main_x 8), 10453#(<= main_x 9), 10454#(<= main_x 10), 10455#(<= main_x 11), 10456#(<= main_x 12), 10457#(<= main_x 13), 10458#(<= main_x 14), 10459#(<= main_x 15), 10460#(<= main_x 16), 10461#(<= main_x 17), 10462#(<= main_x 18), 10463#(<= main_x 19), 10464#(<= main_x 20), 10465#(<= main_x 21), 10466#(<= main_x 22), 10467#(<= main_x 23), 10468#(<= main_x 24), 10469#(<= main_x 25), 10470#(<= main_x 26), 10471#(<= main_x 27), 10472#(<= main_x 28), 10473#(<= main_x 29), 10474#(<= main_x 30), 10475#(<= main_x 31), 10476#(<= main_x 32), 10477#(<= main_x 33), 10478#(<= main_x 34), 10479#(<= main_x 35), 10480#(<= main_x 36), 10481#(<= main_x 37), 10482#(<= main_x 38), 10483#(<= main_x 39), 10484#(<= main_x 40), 10485#(<= main_x 41), 10486#(<= main_x 42), 10487#(<= main_x 43), 10488#(<= main_x 44), 10489#(<= main_x 45), 10490#(<= main_x 46), 10491#(<= main_x 47), 10492#(<= main_x 48), 10493#(<= main_x 49), 10494#(<= main_x 50), 10495#(<= main_x 51)] [2018-07-23 13:51:39,335 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 13:51:39,335 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:51:39,336 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:51:39,337 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:39,337 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 64 states. [2018-07-23 13:51:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:39,370 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2018-07-23 13:51:39,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:51:39,371 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 63 [2018-07-23 13:51:39,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:39,371 INFO L225 Difference]: With dead ends: 66 [2018-07-23 13:51:39,371 INFO L226 Difference]: Without dead ends: 65 [2018-07-23 13:51:39,373 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-07-23 13:51:39,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-07-23 13:51:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-07-23 13:51:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2018-07-23 13:51:39,375 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 63 [2018-07-23 13:51:39,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:39,375 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2018-07-23 13:51:39,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:51:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2018-07-23 13:51:39,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-23 13:51:39,376 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:39,376 INFO L357 BasicCegarLoop]: trace histogram [62, 1, 1] [2018-07-23 13:51:39,376 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:39,377 INFO L82 PathProgramCache]: Analyzing trace with hash -507839693, now seen corresponding path program 62 times [2018-07-23 13:51:39,377 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:39,656 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 13:51:39,656 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:39,657 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:51:39,657 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:39,657 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 13:51:39,657 INFO L185 omatonBuilderFactory]: Interpolants [10768#true, 10769#false, 10770#(<= main_x 0), 10771#(<= main_x 1), 10772#(<= main_x 2), 10773#(<= main_x 3), 10774#(<= main_x 4), 10775#(<= main_x 5), 10776#(<= main_x 6), 10777#(<= main_x 7), 10778#(<= main_x 8), 10779#(<= main_x 9), 10780#(<= main_x 10), 10781#(<= main_x 11), 10782#(<= main_x 12), 10783#(<= main_x 13), 10784#(<= main_x 14), 10785#(<= main_x 15), 10786#(<= main_x 16), 10787#(<= main_x 17), 10788#(<= main_x 18), 10789#(<= main_x 19), 10790#(<= main_x 20), 10791#(<= main_x 21), 10792#(<= main_x 22), 10793#(<= main_x 23), 10794#(<= main_x 24), 10795#(<= main_x 25), 10796#(<= main_x 26), 10797#(<= main_x 27), 10798#(<= main_x 28), 10799#(<= main_x 29), 10800#(<= main_x 30), 10801#(<= main_x 31), 10802#(<= main_x 32), 10803#(<= main_x 33), 10804#(<= main_x 34), 10805#(<= main_x 35), 10806#(<= main_x 36), 10807#(<= main_x 37), 10808#(<= main_x 38), 10809#(<= main_x 39), 10810#(<= main_x 40), 10811#(<= main_x 41), 10812#(<= main_x 42), 10813#(<= main_x 43), 10814#(<= main_x 44), 10815#(<= main_x 45), 10816#(<= main_x 46), 10817#(<= main_x 47), 10818#(<= main_x 48), 10819#(<= main_x 49), 10820#(<= main_x 50), 10821#(<= main_x 51), 10822#(<= main_x 52), 10823#(<= main_x 53), 10824#(<= main_x 54), 10825#(<= main_x 55), 10826#(<= main_x 56), 10827#(<= main_x 57), 10828#(<= main_x 58), 10829#(<= main_x 59), 10830#(<= main_x 60), 10831#(<= main_x 61), 10832#(<= main_x 62)] [2018-07-23 13:51:39,658 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 13:51:39,658 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:51:39,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:51:39,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:51:39,659 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand 65 states. [2018-07-23 13:51:39,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:39,708 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:51:39,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:51:39,708 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 64 [2018-07-23 13:51:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:39,709 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:51:39,709 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:51:39,710 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:51:39,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:51:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:51:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:51:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:51:39,712 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 64 [2018-07-23 13:51:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:39,713 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:51:39,713 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:51:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:51:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:51:39,713 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:39,713 INFO L357 BasicCegarLoop]: trace histogram [63, 1, 1] [2018-07-23 13:51:39,714 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:39,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1436838936, now seen corresponding path program 63 times [2018-07-23 13:51:39,714 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:39,992 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 13:51:39,993 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:39,993 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:51:39,993 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:39,993 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 13:51:39,994 INFO L185 omatonBuilderFactory]: Interpolants [11136#(<= main_x 35), 11137#(<= main_x 36), 11138#(<= main_x 37), 11139#(<= main_x 38), 11140#(<= main_x 39), 11141#(<= main_x 40), 11142#(<= main_x 41), 11143#(<= main_x 42), 11144#(<= main_x 43), 11145#(<= main_x 44), 11146#(<= main_x 45), 11147#(<= main_x 46), 11148#(<= main_x 47), 11149#(<= main_x 48), 11150#(<= main_x 49), 11151#(<= main_x 50), 11152#(<= main_x 51), 11153#(<= main_x 52), 11154#(<= main_x 53), 11155#(<= main_x 54), 11156#(<= main_x 55), 11157#(<= main_x 56), 11158#(<= main_x 57), 11159#(<= main_x 58), 11160#(<= main_x 59), 11161#(<= main_x 60), 11162#(<= main_x 61), 11163#(<= main_x 62), 11164#(<= main_x 63), 11099#true, 11100#false, 11101#(<= main_x 0), 11102#(<= main_x 1), 11103#(<= main_x 2), 11104#(<= main_x 3), 11105#(<= main_x 4), 11106#(<= main_x 5), 11107#(<= main_x 6), 11108#(<= main_x 7), 11109#(<= main_x 8), 11110#(<= main_x 9), 11111#(<= main_x 10), 11112#(<= main_x 11), 11113#(<= main_x 12), 11114#(<= main_x 13), 11115#(<= main_x 14), 11116#(<= main_x 15), 11117#(<= main_x 16), 11118#(<= main_x 17), 11119#(<= main_x 18), 11120#(<= main_x 19), 11121#(<= main_x 20), 11122#(<= main_x 21), 11123#(<= main_x 22), 11124#(<= main_x 23), 11125#(<= main_x 24), 11126#(<= main_x 25), 11127#(<= main_x 26), 11128#(<= main_x 27), 11129#(<= main_x 28), 11130#(<= main_x 29), 11131#(<= main_x 30), 11132#(<= main_x 31), 11133#(<= main_x 32), 11134#(<= main_x 33), 11135#(<= main_x 34)] [2018-07-23 13:51:39,994 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 13:51:39,994 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:51:39,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:51:39,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:51:39,996 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 66 states. [2018-07-23 13:51:40,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,028 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2018-07-23 13:51:40,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:51:40,028 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 65 [2018-07-23 13:51:40,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,029 INFO L225 Difference]: With dead ends: 68 [2018-07-23 13:51:40,029 INFO L226 Difference]: Without dead ends: 67 [2018-07-23 13:51:40,030 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:51:40,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-07-23 13:51:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-07-23 13:51:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-23 13:51:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2018-07-23 13:51:40,033 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 65 [2018-07-23 13:51:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,033 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2018-07-23 13:51:40,033 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:51:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2018-07-23 13:51:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-07-23 13:51:40,034 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,034 INFO L357 BasicCegarLoop]: trace histogram [64, 1, 1] [2018-07-23 13:51:40,034 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1592334291, now seen corresponding path program 64 times [2018-07-23 13:51:40,034 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,311 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 13:51:40,311 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,312 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:51:40,312 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,312 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 13:51:40,312 INFO L185 omatonBuilderFactory]: Interpolants [11435#true, 11436#false, 11437#(<= main_x 0), 11438#(<= main_x 1), 11439#(<= main_x 2), 11440#(<= main_x 3), 11441#(<= main_x 4), 11442#(<= main_x 5), 11443#(<= main_x 6), 11444#(<= main_x 7), 11445#(<= main_x 8), 11446#(<= main_x 9), 11447#(<= main_x 10), 11448#(<= main_x 11), 11449#(<= main_x 12), 11450#(<= main_x 13), 11451#(<= main_x 14), 11452#(<= main_x 15), 11453#(<= main_x 16), 11454#(<= main_x 17), 11455#(<= main_x 18), 11456#(<= main_x 19), 11457#(<= main_x 20), 11458#(<= main_x 21), 11459#(<= main_x 22), 11460#(<= main_x 23), 11461#(<= main_x 24), 11462#(<= main_x 25), 11463#(<= main_x 26), 11464#(<= main_x 27), 11465#(<= main_x 28), 11466#(<= main_x 29), 11467#(<= main_x 30), 11468#(<= main_x 31), 11469#(<= main_x 32), 11470#(<= main_x 33), 11471#(<= main_x 34), 11472#(<= main_x 35), 11473#(<= main_x 36), 11474#(<= main_x 37), 11475#(<= main_x 38), 11476#(<= main_x 39), 11477#(<= main_x 40), 11478#(<= main_x 41), 11479#(<= main_x 42), 11480#(<= main_x 43), 11481#(<= main_x 44), 11482#(<= main_x 45), 11483#(<= main_x 46), 11484#(<= main_x 47), 11485#(<= main_x 48), 11486#(<= main_x 49), 11487#(<= main_x 50), 11488#(<= main_x 51), 11489#(<= main_x 52), 11490#(<= main_x 53), 11491#(<= main_x 54), 11492#(<= main_x 55), 11493#(<= main_x 56), 11494#(<= main_x 57), 11495#(<= main_x 58), 11496#(<= main_x 59), 11497#(<= main_x 60), 11498#(<= main_x 61), 11499#(<= main_x 62), 11500#(<= main_x 63), 11501#(<= main_x 64)] [2018-07-23 13:51:40,313 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 13:51:40,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:51:40,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:51:40,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:51:40,314 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand 67 states. [2018-07-23 13:51:40,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,358 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:51:40,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:51:40,359 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 66 [2018-07-23 13:51:40,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,359 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:51:40,359 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:51:40,360 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:51:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:51:40,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:51:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:51:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:51:40,363 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 66 [2018-07-23 13:51:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,363 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:51:40,364 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:51:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:51:40,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:51:40,364 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,364 INFO L357 BasicCegarLoop]: trace histogram [65, 1, 1] [2018-07-23 13:51:40,365 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,365 INFO L82 PathProgramCache]: Analyzing trace with hash 2117723000, now seen corresponding path program 65 times [2018-07-23 13:51:40,365 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,656 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 13:51:40,656 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,656 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:51:40,657 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,657 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 13:51:40,657 INFO L185 omatonBuilderFactory]: Interpolants [11776#true, 11777#false, 11778#(<= main_x 0), 11779#(<= main_x 1), 11780#(<= main_x 2), 11781#(<= main_x 3), 11782#(<= main_x 4), 11783#(<= main_x 5), 11784#(<= main_x 6), 11785#(<= main_x 7), 11786#(<= main_x 8), 11787#(<= main_x 9), 11788#(<= main_x 10), 11789#(<= main_x 11), 11790#(<= main_x 12), 11791#(<= main_x 13), 11792#(<= main_x 14), 11793#(<= main_x 15), 11794#(<= main_x 16), 11795#(<= main_x 17), 11796#(<= main_x 18), 11797#(<= main_x 19), 11798#(<= main_x 20), 11799#(<= main_x 21), 11800#(<= main_x 22), 11801#(<= main_x 23), 11802#(<= main_x 24), 11803#(<= main_x 25), 11804#(<= main_x 26), 11805#(<= main_x 27), 11806#(<= main_x 28), 11807#(<= main_x 29), 11808#(<= main_x 30), 11809#(<= main_x 31), 11810#(<= main_x 32), 11811#(<= main_x 33), 11812#(<= main_x 34), 11813#(<= main_x 35), 11814#(<= main_x 36), 11815#(<= main_x 37), 11816#(<= main_x 38), 11817#(<= main_x 39), 11818#(<= main_x 40), 11819#(<= main_x 41), 11820#(<= main_x 42), 11821#(<= main_x 43), 11822#(<= main_x 44), 11823#(<= main_x 45), 11824#(<= main_x 46), 11825#(<= main_x 47), 11826#(<= main_x 48), 11827#(<= main_x 49), 11828#(<= main_x 50), 11829#(<= main_x 51), 11830#(<= main_x 52), 11831#(<= main_x 53), 11832#(<= main_x 54), 11833#(<= main_x 55), 11834#(<= main_x 56), 11835#(<= main_x 57), 11836#(<= main_x 58), 11837#(<= main_x 59), 11838#(<= main_x 60), 11839#(<= main_x 61), 11840#(<= main_x 62), 11841#(<= main_x 63), 11842#(<= main_x 64), 11843#(<= main_x 65)] [2018-07-23 13:51:40,658 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 13:51:40,658 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:51:40,659 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:51:40,659 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:40,659 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 68 states. [2018-07-23 13:51:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,713 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2018-07-23 13:51:40,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:51:40,713 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 67 [2018-07-23 13:51:40,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,714 INFO L225 Difference]: With dead ends: 70 [2018-07-23 13:51:40,714 INFO L226 Difference]: Without dead ends: 69 [2018-07-23 13:51:40,714 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:40,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-07-23 13:51:40,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-07-23 13:51:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-23 13:51:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2018-07-23 13:51:40,717 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 67 [2018-07-23 13:51:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,717 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2018-07-23 13:51:40,718 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:51:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2018-07-23 13:51:40,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-07-23 13:51:40,718 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,719 INFO L357 BasicCegarLoop]: trace histogram [66, 1, 1] [2018-07-23 13:51:40,719 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1224903795, now seen corresponding path program 66 times [2018-07-23 13:51:40,719 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,021 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 13:51:41,021 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,021 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:51:41,022 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,022 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 13:51:41,022 INFO L185 omatonBuilderFactory]: Interpolants [12160#(<= main_x 36), 12161#(<= main_x 37), 12162#(<= main_x 38), 12163#(<= main_x 39), 12164#(<= main_x 40), 12165#(<= main_x 41), 12166#(<= main_x 42), 12167#(<= main_x 43), 12168#(<= main_x 44), 12169#(<= main_x 45), 12170#(<= main_x 46), 12171#(<= main_x 47), 12172#(<= main_x 48), 12173#(<= main_x 49), 12174#(<= main_x 50), 12175#(<= main_x 51), 12176#(<= main_x 52), 12177#(<= main_x 53), 12178#(<= main_x 54), 12179#(<= main_x 55), 12180#(<= main_x 56), 12181#(<= main_x 57), 12182#(<= main_x 58), 12183#(<= main_x 59), 12184#(<= main_x 60), 12185#(<= main_x 61), 12186#(<= main_x 62), 12187#(<= main_x 63), 12188#(<= main_x 64), 12189#(<= main_x 65), 12190#(<= main_x 66), 12122#true, 12123#false, 12124#(<= main_x 0), 12125#(<= main_x 1), 12126#(<= main_x 2), 12127#(<= main_x 3), 12128#(<= main_x 4), 12129#(<= main_x 5), 12130#(<= main_x 6), 12131#(<= main_x 7), 12132#(<= main_x 8), 12133#(<= main_x 9), 12134#(<= main_x 10), 12135#(<= main_x 11), 12136#(<= main_x 12), 12137#(<= main_x 13), 12138#(<= main_x 14), 12139#(<= main_x 15), 12140#(<= main_x 16), 12141#(<= main_x 17), 12142#(<= main_x 18), 12143#(<= main_x 19), 12144#(<= main_x 20), 12145#(<= main_x 21), 12146#(<= main_x 22), 12147#(<= main_x 23), 12148#(<= main_x 24), 12149#(<= main_x 25), 12150#(<= main_x 26), 12151#(<= main_x 27), 12152#(<= main_x 28), 12153#(<= main_x 29), 12154#(<= main_x 30), 12155#(<= main_x 31), 12156#(<= main_x 32), 12157#(<= main_x 33), 12158#(<= main_x 34), 12159#(<= main_x 35)] [2018-07-23 13:51:41,022 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 13:51:41,023 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:51:41,023 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:51:41,024 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:51:41,024 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 69 states. [2018-07-23 13:51:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,060 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:51:41,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:51:41,061 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 68 [2018-07-23 13:51:41,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,061 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:51:41,062 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:51:41,062 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:51:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:51:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:51:41,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:51:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:51:41,065 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 68 [2018-07-23 13:51:41,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,065 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:51:41,066 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:51:41,066 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:51:41,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:51:41,066 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,066 INFO L357 BasicCegarLoop]: trace histogram [67, 1, 1] [2018-07-23 13:51:41,067 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,067 INFO L82 PathProgramCache]: Analyzing trace with hash -682687784, now seen corresponding path program 67 times [2018-07-23 13:51:41,067 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,426 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 13:51:41,429 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,430 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:51:41,430 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,430 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 13:51:41,430 INFO L185 omatonBuilderFactory]: Interpolants [12473#true, 12474#false, 12475#(<= main_x 0), 12476#(<= main_x 1), 12477#(<= main_x 2), 12478#(<= main_x 3), 12479#(<= main_x 4), 12480#(<= main_x 5), 12481#(<= main_x 6), 12482#(<= main_x 7), 12483#(<= main_x 8), 12484#(<= main_x 9), 12485#(<= main_x 10), 12486#(<= main_x 11), 12487#(<= main_x 12), 12488#(<= main_x 13), 12489#(<= main_x 14), 12490#(<= main_x 15), 12491#(<= main_x 16), 12492#(<= main_x 17), 12493#(<= main_x 18), 12494#(<= main_x 19), 12495#(<= main_x 20), 12496#(<= main_x 21), 12497#(<= main_x 22), 12498#(<= main_x 23), 12499#(<= main_x 24), 12500#(<= main_x 25), 12501#(<= main_x 26), 12502#(<= main_x 27), 12503#(<= main_x 28), 12504#(<= main_x 29), 12505#(<= main_x 30), 12506#(<= main_x 31), 12507#(<= main_x 32), 12508#(<= main_x 33), 12509#(<= main_x 34), 12510#(<= main_x 35), 12511#(<= main_x 36), 12512#(<= main_x 37), 12513#(<= main_x 38), 12514#(<= main_x 39), 12515#(<= main_x 40), 12516#(<= main_x 41), 12517#(<= main_x 42), 12518#(<= main_x 43), 12519#(<= main_x 44), 12520#(<= main_x 45), 12521#(<= main_x 46), 12522#(<= main_x 47), 12523#(<= main_x 48), 12524#(<= main_x 49), 12525#(<= main_x 50), 12526#(<= main_x 51), 12527#(<= main_x 52), 12528#(<= main_x 53), 12529#(<= main_x 54), 12530#(<= main_x 55), 12531#(<= main_x 56), 12532#(<= main_x 57), 12533#(<= main_x 58), 12534#(<= main_x 59), 12535#(<= main_x 60), 12536#(<= main_x 61), 12537#(<= main_x 62), 12538#(<= main_x 63), 12539#(<= main_x 64), 12540#(<= main_x 65), 12541#(<= main_x 66), 12542#(<= main_x 67)] [2018-07-23 13:51:41,431 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 13:51:41,431 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:51:41,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:51:41,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:41,434 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 70 states. [2018-07-23 13:51:41,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,498 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2018-07-23 13:51:41,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:51:41,498 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 69 [2018-07-23 13:51:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,499 INFO L225 Difference]: With dead ends: 72 [2018-07-23 13:51:41,499 INFO L226 Difference]: Without dead ends: 71 [2018-07-23 13:51:41,500 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:41,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-23 13:51:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-23 13:51:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-23 13:51:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2018-07-23 13:51:41,503 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 69 [2018-07-23 13:51:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,503 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2018-07-23 13:51:41,503 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:51:41,503 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2018-07-23 13:51:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 13:51:41,504 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,504 INFO L357 BasicCegarLoop]: trace histogram [68, 1, 1] [2018-07-23 13:51:41,504 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,505 INFO L82 PathProgramCache]: Analyzing trace with hash 311515411, now seen corresponding path program 68 times [2018-07-23 13:51:41,505 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,819 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 13:51:41,820 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,820 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:51:41,820 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,820 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 13:51:41,821 INFO L185 omatonBuilderFactory]: Interpolants [12829#true, 12830#false, 12831#(<= main_x 0), 12832#(<= main_x 1), 12833#(<= main_x 2), 12834#(<= main_x 3), 12835#(<= main_x 4), 12836#(<= main_x 5), 12837#(<= main_x 6), 12838#(<= main_x 7), 12839#(<= main_x 8), 12840#(<= main_x 9), 12841#(<= main_x 10), 12842#(<= main_x 11), 12843#(<= main_x 12), 12844#(<= main_x 13), 12845#(<= main_x 14), 12846#(<= main_x 15), 12847#(<= main_x 16), 12848#(<= main_x 17), 12849#(<= main_x 18), 12850#(<= main_x 19), 12851#(<= main_x 20), 12852#(<= main_x 21), 12853#(<= main_x 22), 12854#(<= main_x 23), 12855#(<= main_x 24), 12856#(<= main_x 25), 12857#(<= main_x 26), 12858#(<= main_x 27), 12859#(<= main_x 28), 12860#(<= main_x 29), 12861#(<= main_x 30), 12862#(<= main_x 31), 12863#(<= main_x 32), 12864#(<= main_x 33), 12865#(<= main_x 34), 12866#(<= main_x 35), 12867#(<= main_x 36), 12868#(<= main_x 37), 12869#(<= main_x 38), 12870#(<= main_x 39), 12871#(<= main_x 40), 12872#(<= main_x 41), 12873#(<= main_x 42), 12874#(<= main_x 43), 12875#(<= main_x 44), 12876#(<= main_x 45), 12877#(<= main_x 46), 12878#(<= main_x 47), 12879#(<= main_x 48), 12880#(<= main_x 49), 12881#(<= main_x 50), 12882#(<= main_x 51), 12883#(<= main_x 52), 12884#(<= main_x 53), 12885#(<= main_x 54), 12886#(<= main_x 55), 12887#(<= main_x 56), 12888#(<= main_x 57), 12889#(<= main_x 58), 12890#(<= main_x 59), 12891#(<= main_x 60), 12892#(<= main_x 61), 12893#(<= main_x 62), 12894#(<= main_x 63), 12895#(<= main_x 64), 12896#(<= main_x 65), 12897#(<= main_x 66), 12898#(<= main_x 67), 12899#(<= main_x 68)] [2018-07-23 13:51:41,821 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 13:51:41,822 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:51:41,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:51:41,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:41,823 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 71 states. [2018-07-23 13:51:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,878 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:51:41,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:51:41,878 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 70 [2018-07-23 13:51:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,879 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:51:41,879 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:51:41,880 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:41,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:51:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:51:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:51:41,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:51:41,882 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 70 [2018-07-23 13:51:41,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,883 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:51:41,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:51:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:51:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:51:41,883 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,883 INFO L357 BasicCegarLoop]: trace histogram [69, 1, 1] [2018-07-23 13:51:41,884 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1067043384, now seen corresponding path program 69 times [2018-07-23 13:51:41,884 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,170 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 13:51:42,170 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,170 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:51:42,170 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,171 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 13:51:42,171 INFO L185 omatonBuilderFactory]: Interpolants [13190#true, 13191#false, 13192#(<= main_x 0), 13193#(<= main_x 1), 13194#(<= main_x 2), 13195#(<= main_x 3), 13196#(<= main_x 4), 13197#(<= main_x 5), 13198#(<= main_x 6), 13199#(<= main_x 7), 13200#(<= main_x 8), 13201#(<= main_x 9), 13202#(<= main_x 10), 13203#(<= main_x 11), 13204#(<= main_x 12), 13205#(<= main_x 13), 13206#(<= main_x 14), 13207#(<= main_x 15), 13208#(<= main_x 16), 13209#(<= main_x 17), 13210#(<= main_x 18), 13211#(<= main_x 19), 13212#(<= main_x 20), 13213#(<= main_x 21), 13214#(<= main_x 22), 13215#(<= main_x 23), 13216#(<= main_x 24), 13217#(<= main_x 25), 13218#(<= main_x 26), 13219#(<= main_x 27), 13220#(<= main_x 28), 13221#(<= main_x 29), 13222#(<= main_x 30), 13223#(<= main_x 31), 13224#(<= main_x 32), 13225#(<= main_x 33), 13226#(<= main_x 34), 13227#(<= main_x 35), 13228#(<= main_x 36), 13229#(<= main_x 37), 13230#(<= main_x 38), 13231#(<= main_x 39), 13232#(<= main_x 40), 13233#(<= main_x 41), 13234#(<= main_x 42), 13235#(<= main_x 43), 13236#(<= main_x 44), 13237#(<= main_x 45), 13238#(<= main_x 46), 13239#(<= main_x 47), 13240#(<= main_x 48), 13241#(<= main_x 49), 13242#(<= main_x 50), 13243#(<= main_x 51), 13244#(<= main_x 52), 13245#(<= main_x 53), 13246#(<= main_x 54), 13247#(<= main_x 55), 13248#(<= main_x 56), 13249#(<= main_x 57), 13250#(<= main_x 58), 13251#(<= main_x 59), 13252#(<= main_x 60), 13253#(<= main_x 61), 13254#(<= main_x 62), 13255#(<= main_x 63), 13256#(<= main_x 64), 13257#(<= main_x 65), 13258#(<= main_x 66), 13259#(<= main_x 67), 13260#(<= main_x 68), 13261#(<= main_x 69)] [2018-07-23 13:51:42,171 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 13:51:42,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:51:42,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:51:42,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:42,173 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 72 states. [2018-07-23 13:51:42,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,233 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2018-07-23 13:51:42,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:51:42,233 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 71 [2018-07-23 13:51:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,234 INFO L225 Difference]: With dead ends: 74 [2018-07-23 13:51:42,234 INFO L226 Difference]: Without dead ends: 73 [2018-07-23 13:51:42,235 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-07-23 13:51:42,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-07-23 13:51:42,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-07-23 13:51:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2018-07-23 13:51:42,238 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 71 [2018-07-23 13:51:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,238 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 73 transitions. [2018-07-23 13:51:42,238 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:51:42,238 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 73 transitions. [2018-07-23 13:51:42,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-07-23 13:51:42,239 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,239 INFO L357 BasicCegarLoop]: trace histogram [70, 1, 1] [2018-07-23 13:51:42,239 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1281393229, now seen corresponding path program 70 times [2018-07-23 13:51:42,239 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,555 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 13:51:42,555 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,556 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:51:42,556 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,556 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 13:51:42,556 INFO L185 omatonBuilderFactory]: Interpolants [13568#(<= main_x 10), 13569#(<= main_x 11), 13570#(<= main_x 12), 13571#(<= main_x 13), 13572#(<= main_x 14), 13573#(<= main_x 15), 13574#(<= main_x 16), 13575#(<= main_x 17), 13576#(<= main_x 18), 13577#(<= main_x 19), 13578#(<= main_x 20), 13579#(<= main_x 21), 13580#(<= main_x 22), 13581#(<= main_x 23), 13582#(<= main_x 24), 13583#(<= main_x 25), 13584#(<= main_x 26), 13585#(<= main_x 27), 13586#(<= main_x 28), 13587#(<= main_x 29), 13588#(<= main_x 30), 13589#(<= main_x 31), 13590#(<= main_x 32), 13591#(<= main_x 33), 13592#(<= main_x 34), 13593#(<= main_x 35), 13594#(<= main_x 36), 13595#(<= main_x 37), 13596#(<= main_x 38), 13597#(<= main_x 39), 13598#(<= main_x 40), 13599#(<= main_x 41), 13600#(<= main_x 42), 13601#(<= main_x 43), 13602#(<= main_x 44), 13603#(<= main_x 45), 13604#(<= main_x 46), 13605#(<= main_x 47), 13606#(<= main_x 48), 13607#(<= main_x 49), 13608#(<= main_x 50), 13609#(<= main_x 51), 13610#(<= main_x 52), 13611#(<= main_x 53), 13612#(<= main_x 54), 13613#(<= main_x 55), 13614#(<= main_x 56), 13615#(<= main_x 57), 13616#(<= main_x 58), 13617#(<= main_x 59), 13618#(<= main_x 60), 13619#(<= main_x 61), 13620#(<= main_x 62), 13621#(<= main_x 63), 13622#(<= main_x 64), 13623#(<= main_x 65), 13624#(<= main_x 66), 13625#(<= main_x 67), 13626#(<= main_x 68), 13627#(<= main_x 69), 13628#(<= main_x 70), 13556#true, 13557#false, 13558#(<= main_x 0), 13559#(<= main_x 1), 13560#(<= main_x 2), 13561#(<= main_x 3), 13562#(<= main_x 4), 13563#(<= main_x 5), 13564#(<= main_x 6), 13565#(<= main_x 7), 13566#(<= main_x 8), 13567#(<= main_x 9)] [2018-07-23 13:51:42,557 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 13:51:42,557 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:51:42,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:51:42,559 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:51:42,559 INFO L87 Difference]: Start difference. First operand 73 states and 73 transitions. Second operand 73 states. [2018-07-23 13:51:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,623 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:51:42,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:51:42,623 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 72 [2018-07-23 13:51:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,624 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:51:42,624 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:51:42,625 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:51:42,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:51:42,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:51:42,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:51:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:51:42,628 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 72 [2018-07-23 13:51:42,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,628 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:51:42,628 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:51:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:51:42,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:51:42,629 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,629 INFO L357 BasicCegarLoop]: trace histogram [71, 1, 1] [2018-07-23 13:51:42,629 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1068484200, now seen corresponding path program 71 times [2018-07-23 13:51:42,630 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,968 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 13:51:42,969 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,969 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:51:42,969 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,969 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 13:51:42,970 INFO L185 omatonBuilderFactory]: Interpolants [13952#(<= main_x 23), 13953#(<= main_x 24), 13954#(<= main_x 25), 13955#(<= main_x 26), 13956#(<= main_x 27), 13957#(<= main_x 28), 13958#(<= main_x 29), 13959#(<= main_x 30), 13960#(<= main_x 31), 13961#(<= main_x 32), 13962#(<= main_x 33), 13963#(<= main_x 34), 13964#(<= main_x 35), 13965#(<= main_x 36), 13966#(<= main_x 37), 13967#(<= main_x 38), 13968#(<= main_x 39), 13969#(<= main_x 40), 13970#(<= main_x 41), 13971#(<= main_x 42), 13972#(<= main_x 43), 13973#(<= main_x 44), 13974#(<= main_x 45), 13975#(<= main_x 46), 13976#(<= main_x 47), 13977#(<= main_x 48), 13978#(<= main_x 49), 13979#(<= main_x 50), 13980#(<= main_x 51), 13981#(<= main_x 52), 13982#(<= main_x 53), 13983#(<= main_x 54), 13984#(<= main_x 55), 13985#(<= main_x 56), 13986#(<= main_x 57), 13987#(<= main_x 58), 13988#(<= main_x 59), 13989#(<= main_x 60), 13990#(<= main_x 61), 13991#(<= main_x 62), 13992#(<= main_x 63), 13993#(<= main_x 64), 13994#(<= main_x 65), 13995#(<= main_x 66), 13996#(<= main_x 67), 13997#(<= main_x 68), 13998#(<= main_x 69), 13999#(<= main_x 70), 14000#(<= main_x 71), 13927#true, 13928#false, 13929#(<= main_x 0), 13930#(<= main_x 1), 13931#(<= main_x 2), 13932#(<= main_x 3), 13933#(<= main_x 4), 13934#(<= main_x 5), 13935#(<= main_x 6), 13936#(<= main_x 7), 13937#(<= main_x 8), 13938#(<= main_x 9), 13939#(<= main_x 10), 13940#(<= main_x 11), 13941#(<= main_x 12), 13942#(<= main_x 13), 13943#(<= main_x 14), 13944#(<= main_x 15), 13945#(<= main_x 16), 13946#(<= main_x 17), 13947#(<= main_x 18), 13948#(<= main_x 19), 13949#(<= main_x 20), 13950#(<= main_x 21), 13951#(<= main_x 22)] [2018-07-23 13:51:42,970 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 13:51:42,970 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:51:42,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:51:42,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:51:42,972 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 74 states. [2018-07-23 13:51:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,018 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2018-07-23 13:51:43,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:51:43,018 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 73 [2018-07-23 13:51:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,019 INFO L225 Difference]: With dead ends: 76 [2018-07-23 13:51:43,019 INFO L226 Difference]: Without dead ends: 75 [2018-07-23 13:51:43,020 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:51:43,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-07-23 13:51:43,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-07-23 13:51:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-07-23 13:51:43,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2018-07-23 13:51:43,023 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 73 [2018-07-23 13:51:43,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,024 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2018-07-23 13:51:43,024 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:51:43,024 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2018-07-23 13:51:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-07-23 13:51:43,024 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,025 INFO L357 BasicCegarLoop]: trace histogram [72, 1, 1] [2018-07-23 13:51:43,025 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1236728403, now seen corresponding path program 72 times [2018-07-23 13:51:43,025 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,343 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 13:51:43,343 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,343 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:51:43,344 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,344 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 13:51:43,344 INFO L185 omatonBuilderFactory]: Interpolants [14336#(<= main_x 31), 14337#(<= main_x 32), 14338#(<= main_x 33), 14339#(<= main_x 34), 14340#(<= main_x 35), 14341#(<= main_x 36), 14342#(<= main_x 37), 14343#(<= main_x 38), 14344#(<= main_x 39), 14345#(<= main_x 40), 14346#(<= main_x 41), 14347#(<= main_x 42), 14348#(<= main_x 43), 14349#(<= main_x 44), 14350#(<= main_x 45), 14351#(<= main_x 46), 14352#(<= main_x 47), 14353#(<= main_x 48), 14354#(<= main_x 49), 14355#(<= main_x 50), 14356#(<= main_x 51), 14357#(<= main_x 52), 14358#(<= main_x 53), 14359#(<= main_x 54), 14360#(<= main_x 55), 14361#(<= main_x 56), 14362#(<= main_x 57), 14363#(<= main_x 58), 14364#(<= main_x 59), 14365#(<= main_x 60), 14366#(<= main_x 61), 14367#(<= main_x 62), 14368#(<= main_x 63), 14369#(<= main_x 64), 14370#(<= main_x 65), 14371#(<= main_x 66), 14372#(<= main_x 67), 14373#(<= main_x 68), 14374#(<= main_x 69), 14375#(<= main_x 70), 14376#(<= main_x 71), 14377#(<= main_x 72), 14303#true, 14304#false, 14305#(<= main_x 0), 14306#(<= main_x 1), 14307#(<= main_x 2), 14308#(<= main_x 3), 14309#(<= main_x 4), 14310#(<= main_x 5), 14311#(<= main_x 6), 14312#(<= main_x 7), 14313#(<= main_x 8), 14314#(<= main_x 9), 14315#(<= main_x 10), 14316#(<= main_x 11), 14317#(<= main_x 12), 14318#(<= main_x 13), 14319#(<= main_x 14), 14320#(<= main_x 15), 14321#(<= main_x 16), 14322#(<= main_x 17), 14323#(<= main_x 18), 14324#(<= main_x 19), 14325#(<= main_x 20), 14326#(<= main_x 21), 14327#(<= main_x 22), 14328#(<= main_x 23), 14329#(<= main_x 24), 14330#(<= main_x 25), 14331#(<= main_x 26), 14332#(<= main_x 27), 14333#(<= main_x 28), 14334#(<= main_x 29), 14335#(<= main_x 30)] [2018-07-23 13:51:43,345 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 13:51:43,345 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:51:43,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:51:43,346 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:51:43,346 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand 75 states. [2018-07-23 13:51:43,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,388 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:51:43,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:51:43,389 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 74 [2018-07-23 13:51:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,389 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:51:43,390 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:51:43,390 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:51:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:51:43,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:51:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:51:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:51:43,393 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 74 [2018-07-23 13:51:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,394 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:51:43,394 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:51:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:51:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:51:43,394 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,395 INFO L357 BasicCegarLoop]: trace histogram [73, 1, 1] [2018-07-23 13:51:43,395 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,395 INFO L82 PathProgramCache]: Analyzing trace with hash -316124936, now seen corresponding path program 73 times [2018-07-23 13:51:43,395 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,714 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 13:51:43,715 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,715 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:51:43,715 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,715 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 13:51:43,716 INFO L185 omatonBuilderFactory]: Interpolants [14720#(<= main_x 34), 14721#(<= main_x 35), 14722#(<= main_x 36), 14723#(<= main_x 37), 14724#(<= main_x 38), 14725#(<= main_x 39), 14726#(<= main_x 40), 14727#(<= main_x 41), 14728#(<= main_x 42), 14729#(<= main_x 43), 14730#(<= main_x 44), 14731#(<= main_x 45), 14732#(<= main_x 46), 14733#(<= main_x 47), 14734#(<= main_x 48), 14735#(<= main_x 49), 14736#(<= main_x 50), 14737#(<= main_x 51), 14738#(<= main_x 52), 14739#(<= main_x 53), 14740#(<= main_x 54), 14741#(<= main_x 55), 14742#(<= main_x 56), 14743#(<= main_x 57), 14744#(<= main_x 58), 14745#(<= main_x 59), 14746#(<= main_x 60), 14747#(<= main_x 61), 14748#(<= main_x 62), 14749#(<= main_x 63), 14750#(<= main_x 64), 14751#(<= main_x 65), 14752#(<= main_x 66), 14753#(<= main_x 67), 14754#(<= main_x 68), 14755#(<= main_x 69), 14756#(<= main_x 70), 14757#(<= main_x 71), 14758#(<= main_x 72), 14759#(<= main_x 73), 14684#true, 14685#false, 14686#(<= main_x 0), 14687#(<= main_x 1), 14688#(<= main_x 2), 14689#(<= main_x 3), 14690#(<= main_x 4), 14691#(<= main_x 5), 14692#(<= main_x 6), 14693#(<= main_x 7), 14694#(<= main_x 8), 14695#(<= main_x 9), 14696#(<= main_x 10), 14697#(<= main_x 11), 14698#(<= main_x 12), 14699#(<= main_x 13), 14700#(<= main_x 14), 14701#(<= main_x 15), 14702#(<= main_x 16), 14703#(<= main_x 17), 14704#(<= main_x 18), 14705#(<= main_x 19), 14706#(<= main_x 20), 14707#(<= main_x 21), 14708#(<= main_x 22), 14709#(<= main_x 23), 14710#(<= main_x 24), 14711#(<= main_x 25), 14712#(<= main_x 26), 14713#(<= main_x 27), 14714#(<= main_x 28), 14715#(<= main_x 29), 14716#(<= main_x 30), 14717#(<= main_x 31), 14718#(<= main_x 32), 14719#(<= main_x 33)] [2018-07-23 13:51:43,716 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 13:51:43,717 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:51:43,718 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:51:43,718 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:43,718 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 76 states. [2018-07-23 13:51:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,764 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2018-07-23 13:51:43,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:51:43,765 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 75 [2018-07-23 13:51:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,765 INFO L225 Difference]: With dead ends: 78 [2018-07-23 13:51:43,766 INFO L226 Difference]: Without dead ends: 77 [2018-07-23 13:51:43,766 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-07-23 13:51:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-07-23 13:51:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-07-23 13:51:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2018-07-23 13:51:43,770 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 75 [2018-07-23 13:51:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,770 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2018-07-23 13:51:43,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:51:43,770 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2018-07-23 13:51:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-07-23 13:51:43,771 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,771 INFO L357 BasicCegarLoop]: trace histogram [74, 1, 1] [2018-07-23 13:51:43,771 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1209938189, now seen corresponding path program 74 times [2018-07-23 13:51:43,772 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,182 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 13:51:44,182 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:51:44,183 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,183 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 13:51:44,184 INFO L185 omatonBuilderFactory]: Interpolants [15104#(<= main_x 32), 15105#(<= main_x 33), 15106#(<= main_x 34), 15107#(<= main_x 35), 15108#(<= main_x 36), 15109#(<= main_x 37), 15110#(<= main_x 38), 15111#(<= main_x 39), 15112#(<= main_x 40), 15113#(<= main_x 41), 15114#(<= main_x 42), 15115#(<= main_x 43), 15116#(<= main_x 44), 15117#(<= main_x 45), 15118#(<= main_x 46), 15119#(<= main_x 47), 15120#(<= main_x 48), 15121#(<= main_x 49), 15122#(<= main_x 50), 15123#(<= main_x 51), 15124#(<= main_x 52), 15125#(<= main_x 53), 15126#(<= main_x 54), 15127#(<= main_x 55), 15128#(<= main_x 56), 15129#(<= main_x 57), 15130#(<= main_x 58), 15131#(<= main_x 59), 15132#(<= main_x 60), 15133#(<= main_x 61), 15134#(<= main_x 62), 15135#(<= main_x 63), 15136#(<= main_x 64), 15137#(<= main_x 65), 15138#(<= main_x 66), 15139#(<= main_x 67), 15140#(<= main_x 68), 15141#(<= main_x 69), 15142#(<= main_x 70), 15143#(<= main_x 71), 15144#(<= main_x 72), 15145#(<= main_x 73), 15146#(<= main_x 74), 15070#true, 15071#false, 15072#(<= main_x 0), 15073#(<= main_x 1), 15074#(<= main_x 2), 15075#(<= main_x 3), 15076#(<= main_x 4), 15077#(<= main_x 5), 15078#(<= main_x 6), 15079#(<= main_x 7), 15080#(<= main_x 8), 15081#(<= main_x 9), 15082#(<= main_x 10), 15083#(<= main_x 11), 15084#(<= main_x 12), 15085#(<= main_x 13), 15086#(<= main_x 14), 15087#(<= main_x 15), 15088#(<= main_x 16), 15089#(<= main_x 17), 15090#(<= main_x 18), 15091#(<= main_x 19), 15092#(<= main_x 20), 15093#(<= main_x 21), 15094#(<= main_x 22), 15095#(<= main_x 23), 15096#(<= main_x 24), 15097#(<= main_x 25), 15098#(<= main_x 26), 15099#(<= main_x 27), 15100#(<= main_x 28), 15101#(<= main_x 29), 15102#(<= main_x 30), 15103#(<= main_x 31)] [2018-07-23 13:51:44,184 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 13:51:44,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:51:44,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:51:44,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:51:44,186 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand 77 states. [2018-07-23 13:51:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,237 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:51:44,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:51:44,237 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 76 [2018-07-23 13:51:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,238 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:51:44,238 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:51:44,239 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:51:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:51:44,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:51:44,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:51:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:51:44,243 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 76 [2018-07-23 13:51:44,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,243 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:51:44,243 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:51:44,243 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:51:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:51:44,244 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,244 INFO L357 BasicCegarLoop]: trace histogram [75, 1, 1] [2018-07-23 13:51:44,245 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1146622040, now seen corresponding path program 75 times [2018-07-23 13:51:44,245 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,635 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 13:51:44,636 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,636 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:51:44,636 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,636 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 13:51:44,637 INFO L185 omatonBuilderFactory]: Interpolants [15488#(<= main_x 25), 15489#(<= main_x 26), 15490#(<= main_x 27), 15491#(<= main_x 28), 15492#(<= main_x 29), 15493#(<= main_x 30), 15494#(<= main_x 31), 15495#(<= main_x 32), 15496#(<= main_x 33), 15497#(<= main_x 34), 15498#(<= main_x 35), 15499#(<= main_x 36), 15500#(<= main_x 37), 15501#(<= main_x 38), 15502#(<= main_x 39), 15503#(<= main_x 40), 15504#(<= main_x 41), 15505#(<= main_x 42), 15506#(<= main_x 43), 15507#(<= main_x 44), 15508#(<= main_x 45), 15509#(<= main_x 46), 15510#(<= main_x 47), 15511#(<= main_x 48), 15512#(<= main_x 49), 15513#(<= main_x 50), 15514#(<= main_x 51), 15515#(<= main_x 52), 15516#(<= main_x 53), 15517#(<= main_x 54), 15518#(<= main_x 55), 15519#(<= main_x 56), 15520#(<= main_x 57), 15521#(<= main_x 58), 15522#(<= main_x 59), 15523#(<= main_x 60), 15524#(<= main_x 61), 15525#(<= main_x 62), 15526#(<= main_x 63), 15527#(<= main_x 64), 15528#(<= main_x 65), 15529#(<= main_x 66), 15530#(<= main_x 67), 15531#(<= main_x 68), 15532#(<= main_x 69), 15533#(<= main_x 70), 15534#(<= main_x 71), 15535#(<= main_x 72), 15536#(<= main_x 73), 15537#(<= main_x 74), 15538#(<= main_x 75), 15461#true, 15462#false, 15463#(<= main_x 0), 15464#(<= main_x 1), 15465#(<= main_x 2), 15466#(<= main_x 3), 15467#(<= main_x 4), 15468#(<= main_x 5), 15469#(<= main_x 6), 15470#(<= main_x 7), 15471#(<= main_x 8), 15472#(<= main_x 9), 15473#(<= main_x 10), 15474#(<= main_x 11), 15475#(<= main_x 12), 15476#(<= main_x 13), 15477#(<= main_x 14), 15478#(<= main_x 15), 15479#(<= main_x 16), 15480#(<= main_x 17), 15481#(<= main_x 18), 15482#(<= main_x 19), 15483#(<= main_x 20), 15484#(<= main_x 21), 15485#(<= main_x 22), 15486#(<= main_x 23), 15487#(<= main_x 24)] [2018-07-23 13:51:44,637 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 13:51:44,637 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:51:44,638 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:51:44,639 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:44,639 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 78 states. [2018-07-23 13:51:44,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,689 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-07-23 13:51:44,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:51:44,690 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 77 [2018-07-23 13:51:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,691 INFO L225 Difference]: With dead ends: 80 [2018-07-23 13:51:44,691 INFO L226 Difference]: Without dead ends: 79 [2018-07-23 13:51:44,691 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:44,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-07-23 13:51:44,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-07-23 13:51:44,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-07-23 13:51:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2018-07-23 13:51:44,694 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 77 [2018-07-23 13:51:44,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,695 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2018-07-23 13:51:44,695 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:51:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2018-07-23 13:51:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 13:51:44,695 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,696 INFO L357 BasicCegarLoop]: trace histogram [76, 1, 1] [2018-07-23 13:51:44,696 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1185545107, now seen corresponding path program 76 times [2018-07-23 13:51:44,696 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,002 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 13:51:45,003 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,003 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:51:45,003 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,003 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 13:51:45,004 INFO L185 omatonBuilderFactory]: Interpolants [15872#(<= main_x 13), 15873#(<= main_x 14), 15874#(<= main_x 15), 15875#(<= main_x 16), 15876#(<= main_x 17), 15877#(<= main_x 18), 15878#(<= main_x 19), 15879#(<= main_x 20), 15880#(<= main_x 21), 15881#(<= main_x 22), 15882#(<= main_x 23), 15883#(<= main_x 24), 15884#(<= main_x 25), 15885#(<= main_x 26), 15886#(<= main_x 27), 15887#(<= main_x 28), 15888#(<= main_x 29), 15889#(<= main_x 30), 15890#(<= main_x 31), 15891#(<= main_x 32), 15892#(<= main_x 33), 15893#(<= main_x 34), 15894#(<= main_x 35), 15895#(<= main_x 36), 15896#(<= main_x 37), 15897#(<= main_x 38), 15898#(<= main_x 39), 15899#(<= main_x 40), 15900#(<= main_x 41), 15901#(<= main_x 42), 15902#(<= main_x 43), 15903#(<= main_x 44), 15904#(<= main_x 45), 15905#(<= main_x 46), 15906#(<= main_x 47), 15907#(<= main_x 48), 15908#(<= main_x 49), 15909#(<= main_x 50), 15910#(<= main_x 51), 15911#(<= main_x 52), 15912#(<= main_x 53), 15913#(<= main_x 54), 15914#(<= main_x 55), 15915#(<= main_x 56), 15916#(<= main_x 57), 15917#(<= main_x 58), 15918#(<= main_x 59), 15919#(<= main_x 60), 15920#(<= main_x 61), 15921#(<= main_x 62), 15922#(<= main_x 63), 15923#(<= main_x 64), 15924#(<= main_x 65), 15925#(<= main_x 66), 15926#(<= main_x 67), 15927#(<= main_x 68), 15928#(<= main_x 69), 15929#(<= main_x 70), 15930#(<= main_x 71), 15931#(<= main_x 72), 15932#(<= main_x 73), 15933#(<= main_x 74), 15934#(<= main_x 75), 15935#(<= main_x 76), 15857#true, 15858#false, 15859#(<= main_x 0), 15860#(<= main_x 1), 15861#(<= main_x 2), 15862#(<= main_x 3), 15863#(<= main_x 4), 15864#(<= main_x 5), 15865#(<= main_x 6), 15866#(<= main_x 7), 15867#(<= main_x 8), 15868#(<= main_x 9), 15869#(<= main_x 10), 15870#(<= main_x 11), 15871#(<= main_x 12)] [2018-07-23 13:51:45,005 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 13:51:45,005 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:51:45,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:51:45,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:45,007 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand 79 states. [2018-07-23 13:51:45,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,066 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:51:45,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:51:45,067 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 78 [2018-07-23 13:51:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,067 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:51:45,067 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:51:45,068 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:51:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:51:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:51:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:51:45,072 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 78 [2018-07-23 13:51:45,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,073 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:51:45,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:51:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:51:45,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:51:45,074 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,074 INFO L357 BasicCegarLoop]: trace histogram [77, 1, 1] [2018-07-23 13:51:45,074 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1902807112, now seen corresponding path program 77 times [2018-07-23 13:51:45,074 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,374 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 13:51:45,375 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,375 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:51:45,375 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,375 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 13:51:45,376 INFO L185 omatonBuilderFactory]: Interpolants [16258#true, 16259#false, 16260#(<= main_x 0), 16261#(<= main_x 1), 16262#(<= main_x 2), 16263#(<= main_x 3), 16264#(<= main_x 4), 16265#(<= main_x 5), 16266#(<= main_x 6), 16267#(<= main_x 7), 16268#(<= main_x 8), 16269#(<= main_x 9), 16270#(<= main_x 10), 16271#(<= main_x 11), 16272#(<= main_x 12), 16273#(<= main_x 13), 16274#(<= main_x 14), 16275#(<= main_x 15), 16276#(<= main_x 16), 16277#(<= main_x 17), 16278#(<= main_x 18), 16279#(<= main_x 19), 16280#(<= main_x 20), 16281#(<= main_x 21), 16282#(<= main_x 22), 16283#(<= main_x 23), 16284#(<= main_x 24), 16285#(<= main_x 25), 16286#(<= main_x 26), 16287#(<= main_x 27), 16288#(<= main_x 28), 16289#(<= main_x 29), 16290#(<= main_x 30), 16291#(<= main_x 31), 16292#(<= main_x 32), 16293#(<= main_x 33), 16294#(<= main_x 34), 16295#(<= main_x 35), 16296#(<= main_x 36), 16297#(<= main_x 37), 16298#(<= main_x 38), 16299#(<= main_x 39), 16300#(<= main_x 40), 16301#(<= main_x 41), 16302#(<= main_x 42), 16303#(<= main_x 43), 16304#(<= main_x 44), 16305#(<= main_x 45), 16306#(<= main_x 46), 16307#(<= main_x 47), 16308#(<= main_x 48), 16309#(<= main_x 49), 16310#(<= main_x 50), 16311#(<= main_x 51), 16312#(<= main_x 52), 16313#(<= main_x 53), 16314#(<= main_x 54), 16315#(<= main_x 55), 16316#(<= main_x 56), 16317#(<= main_x 57), 16318#(<= main_x 58), 16319#(<= main_x 59), 16320#(<= main_x 60), 16321#(<= main_x 61), 16322#(<= main_x 62), 16323#(<= main_x 63), 16324#(<= main_x 64), 16325#(<= main_x 65), 16326#(<= main_x 66), 16327#(<= main_x 67), 16328#(<= main_x 68), 16329#(<= main_x 69), 16330#(<= main_x 70), 16331#(<= main_x 71), 16332#(<= main_x 72), 16333#(<= main_x 73), 16334#(<= main_x 74), 16335#(<= main_x 75), 16336#(<= main_x 76), 16337#(<= main_x 77)] [2018-07-23 13:51:45,376 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 13:51:45,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:51:45,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:51:45,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:51:45,378 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 80 states. [2018-07-23 13:51:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,455 INFO L93 Difference]: Finished difference Result 82 states and 82 transitions. [2018-07-23 13:51:45,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:51:45,455 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 79 [2018-07-23 13:51:45,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,456 INFO L225 Difference]: With dead ends: 82 [2018-07-23 13:51:45,456 INFO L226 Difference]: Without dead ends: 81 [2018-07-23 13:51:45,457 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:51:45,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-07-23 13:51:45,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-07-23 13:51:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 13:51:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2018-07-23 13:51:45,460 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 79 [2018-07-23 13:51:45,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,460 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2018-07-23 13:51:45,460 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:51:45,460 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2018-07-23 13:51:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-07-23 13:51:45,461 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,461 INFO L357 BasicCegarLoop]: trace histogram [78, 1, 1] [2018-07-23 13:51:45,461 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1142521907, now seen corresponding path program 78 times [2018-07-23 13:51:45,462 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,774 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 13:51:45,774 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,774 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:51:45,775 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,775 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 13:51:45,775 INFO L185 omatonBuilderFactory]: Interpolants [16664#true, 16665#false, 16666#(<= main_x 0), 16667#(<= main_x 1), 16668#(<= main_x 2), 16669#(<= main_x 3), 16670#(<= main_x 4), 16671#(<= main_x 5), 16672#(<= main_x 6), 16673#(<= main_x 7), 16674#(<= main_x 8), 16675#(<= main_x 9), 16676#(<= main_x 10), 16677#(<= main_x 11), 16678#(<= main_x 12), 16679#(<= main_x 13), 16680#(<= main_x 14), 16681#(<= main_x 15), 16682#(<= main_x 16), 16683#(<= main_x 17), 16684#(<= main_x 18), 16685#(<= main_x 19), 16686#(<= main_x 20), 16687#(<= main_x 21), 16688#(<= main_x 22), 16689#(<= main_x 23), 16690#(<= main_x 24), 16691#(<= main_x 25), 16692#(<= main_x 26), 16693#(<= main_x 27), 16694#(<= main_x 28), 16695#(<= main_x 29), 16696#(<= main_x 30), 16697#(<= main_x 31), 16698#(<= main_x 32), 16699#(<= main_x 33), 16700#(<= main_x 34), 16701#(<= main_x 35), 16702#(<= main_x 36), 16703#(<= main_x 37), 16704#(<= main_x 38), 16705#(<= main_x 39), 16706#(<= main_x 40), 16707#(<= main_x 41), 16708#(<= main_x 42), 16709#(<= main_x 43), 16710#(<= main_x 44), 16711#(<= main_x 45), 16712#(<= main_x 46), 16713#(<= main_x 47), 16714#(<= main_x 48), 16715#(<= main_x 49), 16716#(<= main_x 50), 16717#(<= main_x 51), 16718#(<= main_x 52), 16719#(<= main_x 53), 16720#(<= main_x 54), 16721#(<= main_x 55), 16722#(<= main_x 56), 16723#(<= main_x 57), 16724#(<= main_x 58), 16725#(<= main_x 59), 16726#(<= main_x 60), 16727#(<= main_x 61), 16728#(<= main_x 62), 16729#(<= main_x 63), 16730#(<= main_x 64), 16731#(<= main_x 65), 16732#(<= main_x 66), 16733#(<= main_x 67), 16734#(<= main_x 68), 16735#(<= main_x 69), 16736#(<= main_x 70), 16737#(<= main_x 71), 16738#(<= main_x 72), 16739#(<= main_x 73), 16740#(<= main_x 74), 16741#(<= main_x 75), 16742#(<= main_x 76), 16743#(<= main_x 77), 16744#(<= main_x 78)] [2018-07-23 13:51:45,776 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 13:51:45,776 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:51:45,777 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:51:45,777 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:51:45,778 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand 81 states. [2018-07-23 13:51:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,853 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:51:45,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:51:45,854 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 80 [2018-07-23 13:51:45,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,854 INFO L225 Difference]: With dead ends: 83 [2018-07-23 13:51:45,854 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:51:45,855 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:51:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:51:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:51:45,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:51:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:51:45,858 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 80 [2018-07-23 13:51:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,858 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:51:45,858 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:51:45,859 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:51:45,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:51:45,859 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,859 INFO L357 BasicCegarLoop]: trace histogram [79, 1, 1] [2018-07-23 13:51:45,859 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1058440984, now seen corresponding path program 79 times [2018-07-23 13:51:45,860 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,171 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 13:51:46,171 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,171 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:51:46,172 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,172 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 13:51:46,172 INFO L185 omatonBuilderFactory]: Interpolants [17152#(<= main_x 75), 17153#(<= main_x 76), 17154#(<= main_x 77), 17155#(<= main_x 78), 17156#(<= main_x 79), 17075#true, 17076#false, 17077#(<= main_x 0), 17078#(<= main_x 1), 17079#(<= main_x 2), 17080#(<= main_x 3), 17081#(<= main_x 4), 17082#(<= main_x 5), 17083#(<= main_x 6), 17084#(<= main_x 7), 17085#(<= main_x 8), 17086#(<= main_x 9), 17087#(<= main_x 10), 17088#(<= main_x 11), 17089#(<= main_x 12), 17090#(<= main_x 13), 17091#(<= main_x 14), 17092#(<= main_x 15), 17093#(<= main_x 16), 17094#(<= main_x 17), 17095#(<= main_x 18), 17096#(<= main_x 19), 17097#(<= main_x 20), 17098#(<= main_x 21), 17099#(<= main_x 22), 17100#(<= main_x 23), 17101#(<= main_x 24), 17102#(<= main_x 25), 17103#(<= main_x 26), 17104#(<= main_x 27), 17105#(<= main_x 28), 17106#(<= main_x 29), 17107#(<= main_x 30), 17108#(<= main_x 31), 17109#(<= main_x 32), 17110#(<= main_x 33), 17111#(<= main_x 34), 17112#(<= main_x 35), 17113#(<= main_x 36), 17114#(<= main_x 37), 17115#(<= main_x 38), 17116#(<= main_x 39), 17117#(<= main_x 40), 17118#(<= main_x 41), 17119#(<= main_x 42), 17120#(<= main_x 43), 17121#(<= main_x 44), 17122#(<= main_x 45), 17123#(<= main_x 46), 17124#(<= main_x 47), 17125#(<= main_x 48), 17126#(<= main_x 49), 17127#(<= main_x 50), 17128#(<= main_x 51), 17129#(<= main_x 52), 17130#(<= main_x 53), 17131#(<= main_x 54), 17132#(<= main_x 55), 17133#(<= main_x 56), 17134#(<= main_x 57), 17135#(<= main_x 58), 17136#(<= main_x 59), 17137#(<= main_x 60), 17138#(<= main_x 61), 17139#(<= main_x 62), 17140#(<= main_x 63), 17141#(<= main_x 64), 17142#(<= main_x 65), 17143#(<= main_x 66), 17144#(<= main_x 67), 17145#(<= main_x 68), 17146#(<= main_x 69), 17147#(<= main_x 70), 17148#(<= main_x 71), 17149#(<= main_x 72), 17150#(<= main_x 73), 17151#(<= main_x 74)] [2018-07-23 13:51:46,173 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 13:51:46,173 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:51:46,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:51:46,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:51:46,174 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 82 states. [2018-07-23 13:51:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,250 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2018-07-23 13:51:46,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:51:46,250 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 81 [2018-07-23 13:51:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,251 INFO L225 Difference]: With dead ends: 84 [2018-07-23 13:51:46,251 INFO L226 Difference]: Without dead ends: 83 [2018-07-23 13:51:46,251 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:51:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-07-23 13:51:46,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-07-23 13:51:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-07-23 13:51:46,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2018-07-23 13:51:46,254 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 81 [2018-07-23 13:51:46,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,254 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2018-07-23 13:51:46,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:51:46,254 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2018-07-23 13:51:46,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-07-23 13:51:46,255 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,255 INFO L357 BasicCegarLoop]: trace histogram [80, 1, 1] [2018-07-23 13:51:46,255 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1548067629, now seen corresponding path program 80 times [2018-07-23 13:51:46,256 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,594 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 13:51:46,594 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:51:46,595 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,595 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 13:51:46,595 INFO L185 omatonBuilderFactory]: Interpolants [17536#(<= main_x 43), 17537#(<= main_x 44), 17538#(<= main_x 45), 17539#(<= main_x 46), 17540#(<= main_x 47), 17541#(<= main_x 48), 17542#(<= main_x 49), 17543#(<= main_x 50), 17544#(<= main_x 51), 17545#(<= main_x 52), 17546#(<= main_x 53), 17547#(<= main_x 54), 17548#(<= main_x 55), 17549#(<= main_x 56), 17550#(<= main_x 57), 17551#(<= main_x 58), 17552#(<= main_x 59), 17553#(<= main_x 60), 17554#(<= main_x 61), 17555#(<= main_x 62), 17556#(<= main_x 63), 17557#(<= main_x 64), 17558#(<= main_x 65), 17559#(<= main_x 66), 17560#(<= main_x 67), 17561#(<= main_x 68), 17562#(<= main_x 69), 17563#(<= main_x 70), 17564#(<= main_x 71), 17565#(<= main_x 72), 17566#(<= main_x 73), 17567#(<= main_x 74), 17568#(<= main_x 75), 17569#(<= main_x 76), 17570#(<= main_x 77), 17571#(<= main_x 78), 17572#(<= main_x 79), 17573#(<= main_x 80), 17491#true, 17492#false, 17493#(<= main_x 0), 17494#(<= main_x 1), 17495#(<= main_x 2), 17496#(<= main_x 3), 17497#(<= main_x 4), 17498#(<= main_x 5), 17499#(<= main_x 6), 17500#(<= main_x 7), 17501#(<= main_x 8), 17502#(<= main_x 9), 17503#(<= main_x 10), 17504#(<= main_x 11), 17505#(<= main_x 12), 17506#(<= main_x 13), 17507#(<= main_x 14), 17508#(<= main_x 15), 17509#(<= main_x 16), 17510#(<= main_x 17), 17511#(<= main_x 18), 17512#(<= main_x 19), 17513#(<= main_x 20), 17514#(<= main_x 21), 17515#(<= main_x 22), 17516#(<= main_x 23), 17517#(<= main_x 24), 17518#(<= main_x 25), 17519#(<= main_x 26), 17520#(<= main_x 27), 17521#(<= main_x 28), 17522#(<= main_x 29), 17523#(<= main_x 30), 17524#(<= main_x 31), 17525#(<= main_x 32), 17526#(<= main_x 33), 17527#(<= main_x 34), 17528#(<= main_x 35), 17529#(<= main_x 36), 17530#(<= main_x 37), 17531#(<= main_x 38), 17532#(<= main_x 39), 17533#(<= main_x 40), 17534#(<= main_x 41), 17535#(<= main_x 42)] [2018-07-23 13:51:46,595 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 13:51:46,596 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:51:46,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:51:46,597 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:51:46,597 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 83 states. [2018-07-23 13:51:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,646 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:51:46,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:51:46,646 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 82 [2018-07-23 13:51:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,647 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:51:46,647 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:51:46,647 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:51:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:51:46,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:51:46,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:51:46,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:51:46,650 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 82 [2018-07-23 13:51:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,650 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:51:46,650 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:51:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:51:46,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:51:46,651 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,651 INFO L357 BasicCegarLoop]: trace histogram [81, 1, 1] [2018-07-23 13:51:46,651 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,652 INFO L82 PathProgramCache]: Analyzing trace with hash -745456008, now seen corresponding path program 81 times [2018-07-23 13:51:46,652 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,027 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 13:51:47,028 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,028 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:51:47,028 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,028 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 13:51:47,029 INFO L185 omatonBuilderFactory]: Interpolants [17920#(<= main_x 6), 17921#(<= main_x 7), 17922#(<= main_x 8), 17923#(<= main_x 9), 17924#(<= main_x 10), 17925#(<= main_x 11), 17926#(<= main_x 12), 17927#(<= main_x 13), 17928#(<= main_x 14), 17929#(<= main_x 15), 17930#(<= main_x 16), 17931#(<= main_x 17), 17932#(<= main_x 18), 17933#(<= main_x 19), 17934#(<= main_x 20), 17935#(<= main_x 21), 17936#(<= main_x 22), 17937#(<= main_x 23), 17938#(<= main_x 24), 17939#(<= main_x 25), 17940#(<= main_x 26), 17941#(<= main_x 27), 17942#(<= main_x 28), 17943#(<= main_x 29), 17944#(<= main_x 30), 17945#(<= main_x 31), 17946#(<= main_x 32), 17947#(<= main_x 33), 17948#(<= main_x 34), 17949#(<= main_x 35), 17950#(<= main_x 36), 17951#(<= main_x 37), 17952#(<= main_x 38), 17953#(<= main_x 39), 17954#(<= main_x 40), 17955#(<= main_x 41), 17956#(<= main_x 42), 17957#(<= main_x 43), 17958#(<= main_x 44), 17959#(<= main_x 45), 17960#(<= main_x 46), 17961#(<= main_x 47), 17962#(<= main_x 48), 17963#(<= main_x 49), 17964#(<= main_x 50), 17965#(<= main_x 51), 17966#(<= main_x 52), 17967#(<= main_x 53), 17968#(<= main_x 54), 17969#(<= main_x 55), 17970#(<= main_x 56), 17971#(<= main_x 57), 17972#(<= main_x 58), 17973#(<= main_x 59), 17974#(<= main_x 60), 17975#(<= main_x 61), 17976#(<= main_x 62), 17977#(<= main_x 63), 17978#(<= main_x 64), 17979#(<= main_x 65), 17980#(<= main_x 66), 17981#(<= main_x 67), 17982#(<= main_x 68), 17983#(<= main_x 69), 17984#(<= main_x 70), 17985#(<= main_x 71), 17986#(<= main_x 72), 17987#(<= main_x 73), 17988#(<= main_x 74), 17989#(<= main_x 75), 17990#(<= main_x 76), 17991#(<= main_x 77), 17992#(<= main_x 78), 17993#(<= main_x 79), 17994#(<= main_x 80), 17995#(<= main_x 81), 17912#true, 17913#false, 17914#(<= main_x 0), 17915#(<= main_x 1), 17916#(<= main_x 2), 17917#(<= main_x 3), 17918#(<= main_x 4), 17919#(<= main_x 5)] [2018-07-23 13:51:47,030 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 13:51:47,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:51:47,031 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:51:47,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:51:47,031 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 84 states. [2018-07-23 13:51:47,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,112 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2018-07-23 13:51:47,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:51:47,112 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 83 [2018-07-23 13:51:47,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,113 INFO L225 Difference]: With dead ends: 86 [2018-07-23 13:51:47,113 INFO L226 Difference]: Without dead ends: 85 [2018-07-23 13:51:47,113 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:51:47,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-07-23 13:51:47,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2018-07-23 13:51:47,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-07-23 13:51:47,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2018-07-23 13:51:47,116 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 83 [2018-07-23 13:51:47,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,116 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2018-07-23 13:51:47,116 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:51:47,117 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2018-07-23 13:51:47,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-23 13:51:47,117 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,117 INFO L357 BasicCegarLoop]: trace histogram [82, 1, 1] [2018-07-23 13:51:47,118 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1634299533, now seen corresponding path program 82 times [2018-07-23 13:51:47,118 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,413 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 13:51:47,414 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,414 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:51:47,414 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,414 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 13:51:47,414 INFO L185 omatonBuilderFactory]: Interpolants [18338#true, 18339#false, 18340#(<= main_x 0), 18341#(<= main_x 1), 18342#(<= main_x 2), 18343#(<= main_x 3), 18344#(<= main_x 4), 18345#(<= main_x 5), 18346#(<= main_x 6), 18347#(<= main_x 7), 18348#(<= main_x 8), 18349#(<= main_x 9), 18350#(<= main_x 10), 18351#(<= main_x 11), 18352#(<= main_x 12), 18353#(<= main_x 13), 18354#(<= main_x 14), 18355#(<= main_x 15), 18356#(<= main_x 16), 18357#(<= main_x 17), 18358#(<= main_x 18), 18359#(<= main_x 19), 18360#(<= main_x 20), 18361#(<= main_x 21), 18362#(<= main_x 22), 18363#(<= main_x 23), 18364#(<= main_x 24), 18365#(<= main_x 25), 18366#(<= main_x 26), 18367#(<= main_x 27), 18368#(<= main_x 28), 18369#(<= main_x 29), 18370#(<= main_x 30), 18371#(<= main_x 31), 18372#(<= main_x 32), 18373#(<= main_x 33), 18374#(<= main_x 34), 18375#(<= main_x 35), 18376#(<= main_x 36), 18377#(<= main_x 37), 18378#(<= main_x 38), 18379#(<= main_x 39), 18380#(<= main_x 40), 18381#(<= main_x 41), 18382#(<= main_x 42), 18383#(<= main_x 43), 18384#(<= main_x 44), 18385#(<= main_x 45), 18386#(<= main_x 46), 18387#(<= main_x 47), 18388#(<= main_x 48), 18389#(<= main_x 49), 18390#(<= main_x 50), 18391#(<= main_x 51), 18392#(<= main_x 52), 18393#(<= main_x 53), 18394#(<= main_x 54), 18395#(<= main_x 55), 18396#(<= main_x 56), 18397#(<= main_x 57), 18398#(<= main_x 58), 18399#(<= main_x 59), 18400#(<= main_x 60), 18401#(<= main_x 61), 18402#(<= main_x 62), 18403#(<= main_x 63), 18404#(<= main_x 64), 18405#(<= main_x 65), 18406#(<= main_x 66), 18407#(<= main_x 67), 18408#(<= main_x 68), 18409#(<= main_x 69), 18410#(<= main_x 70), 18411#(<= main_x 71), 18412#(<= main_x 72), 18413#(<= main_x 73), 18414#(<= main_x 74), 18415#(<= main_x 75), 18416#(<= main_x 76), 18417#(<= main_x 77), 18418#(<= main_x 78), 18419#(<= main_x 79), 18420#(<= main_x 80), 18421#(<= main_x 81), 18422#(<= main_x 82)] [2018-07-23 13:51:47,415 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 13:51:47,415 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:51:47,415 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:51:47,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:51:47,416 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand 85 states. [2018-07-23 13:51:47,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,502 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:51:47,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:51:47,502 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 84 [2018-07-23 13:51:47,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,503 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:51:47,503 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:51:47,504 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:51:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:51:47,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:51:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:51:47,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:51:47,506 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 84 [2018-07-23 13:51:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,507 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:51:47,507 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:51:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:51:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:51:47,507 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,508 INFO L357 BasicCegarLoop]: trace histogram [83, 1, 1] [2018-07-23 13:51:47,508 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,508 INFO L82 PathProgramCache]: Analyzing trace with hash 876322264, now seen corresponding path program 83 times [2018-07-23 13:51:47,508 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,851 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 13:51:47,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,851 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:51:47,851 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,852 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 13:51:47,852 INFO L185 omatonBuilderFactory]: Interpolants [18816#(<= main_x 45), 18817#(<= main_x 46), 18818#(<= main_x 47), 18819#(<= main_x 48), 18820#(<= main_x 49), 18821#(<= main_x 50), 18822#(<= main_x 51), 18823#(<= main_x 52), 18824#(<= main_x 53), 18825#(<= main_x 54), 18826#(<= main_x 55), 18827#(<= main_x 56), 18828#(<= main_x 57), 18829#(<= main_x 58), 18830#(<= main_x 59), 18831#(<= main_x 60), 18832#(<= main_x 61), 18833#(<= main_x 62), 18834#(<= main_x 63), 18835#(<= main_x 64), 18836#(<= main_x 65), 18837#(<= main_x 66), 18838#(<= main_x 67), 18839#(<= main_x 68), 18840#(<= main_x 69), 18841#(<= main_x 70), 18842#(<= main_x 71), 18843#(<= main_x 72), 18844#(<= main_x 73), 18845#(<= main_x 74), 18846#(<= main_x 75), 18847#(<= main_x 76), 18848#(<= main_x 77), 18849#(<= main_x 78), 18850#(<= main_x 79), 18851#(<= main_x 80), 18852#(<= main_x 81), 18853#(<= main_x 82), 18854#(<= main_x 83), 18769#true, 18770#false, 18771#(<= main_x 0), 18772#(<= main_x 1), 18773#(<= main_x 2), 18774#(<= main_x 3), 18775#(<= main_x 4), 18776#(<= main_x 5), 18777#(<= main_x 6), 18778#(<= main_x 7), 18779#(<= main_x 8), 18780#(<= main_x 9), 18781#(<= main_x 10), 18782#(<= main_x 11), 18783#(<= main_x 12), 18784#(<= main_x 13), 18785#(<= main_x 14), 18786#(<= main_x 15), 18787#(<= main_x 16), 18788#(<= main_x 17), 18789#(<= main_x 18), 18790#(<= main_x 19), 18791#(<= main_x 20), 18792#(<= main_x 21), 18793#(<= main_x 22), 18794#(<= main_x 23), 18795#(<= main_x 24), 18796#(<= main_x 25), 18797#(<= main_x 26), 18798#(<= main_x 27), 18799#(<= main_x 28), 18800#(<= main_x 29), 18801#(<= main_x 30), 18802#(<= main_x 31), 18803#(<= main_x 32), 18804#(<= main_x 33), 18805#(<= main_x 34), 18806#(<= main_x 35), 18807#(<= main_x 36), 18808#(<= main_x 37), 18809#(<= main_x 38), 18810#(<= main_x 39), 18811#(<= main_x 40), 18812#(<= main_x 41), 18813#(<= main_x 42), 18814#(<= main_x 43), 18815#(<= main_x 44)] [2018-07-23 13:51:47,852 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 13:51:47,853 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:51:47,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:51:47,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:51:47,854 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 86 states. [2018-07-23 13:51:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,907 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2018-07-23 13:51:47,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:51:47,908 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 85 [2018-07-23 13:51:47,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,908 INFO L225 Difference]: With dead ends: 88 [2018-07-23 13:51:47,909 INFO L226 Difference]: Without dead ends: 87 [2018-07-23 13:51:47,909 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:51:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-07-23 13:51:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-07-23 13:51:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-07-23 13:51:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2018-07-23 13:51:47,912 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 85 [2018-07-23 13:51:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,912 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2018-07-23 13:51:47,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:51:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2018-07-23 13:51:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-23 13:51:47,913 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,913 INFO L357 BasicCegarLoop]: trace histogram [84, 1, 1] [2018-07-23 13:51:47,913 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1396186643, now seen corresponding path program 84 times [2018-07-23 13:51:47,913 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,312 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 13:51:48,313 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,313 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:51:48,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,313 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 13:51:48,314 INFO L185 omatonBuilderFactory]: Interpolants [19205#true, 19206#false, 19207#(<= main_x 0), 19208#(<= main_x 1), 19209#(<= main_x 2), 19210#(<= main_x 3), 19211#(<= main_x 4), 19212#(<= main_x 5), 19213#(<= main_x 6), 19214#(<= main_x 7), 19215#(<= main_x 8), 19216#(<= main_x 9), 19217#(<= main_x 10), 19218#(<= main_x 11), 19219#(<= main_x 12), 19220#(<= main_x 13), 19221#(<= main_x 14), 19222#(<= main_x 15), 19223#(<= main_x 16), 19224#(<= main_x 17), 19225#(<= main_x 18), 19226#(<= main_x 19), 19227#(<= main_x 20), 19228#(<= main_x 21), 19229#(<= main_x 22), 19230#(<= main_x 23), 19231#(<= main_x 24), 19232#(<= main_x 25), 19233#(<= main_x 26), 19234#(<= main_x 27), 19235#(<= main_x 28), 19236#(<= main_x 29), 19237#(<= main_x 30), 19238#(<= main_x 31), 19239#(<= main_x 32), 19240#(<= main_x 33), 19241#(<= main_x 34), 19242#(<= main_x 35), 19243#(<= main_x 36), 19244#(<= main_x 37), 19245#(<= main_x 38), 19246#(<= main_x 39), 19247#(<= main_x 40), 19248#(<= main_x 41), 19249#(<= main_x 42), 19250#(<= main_x 43), 19251#(<= main_x 44), 19252#(<= main_x 45), 19253#(<= main_x 46), 19254#(<= main_x 47), 19255#(<= main_x 48), 19256#(<= main_x 49), 19257#(<= main_x 50), 19258#(<= main_x 51), 19259#(<= main_x 52), 19260#(<= main_x 53), 19261#(<= main_x 54), 19262#(<= main_x 55), 19263#(<= main_x 56), 19264#(<= main_x 57), 19265#(<= main_x 58), 19266#(<= main_x 59), 19267#(<= main_x 60), 19268#(<= main_x 61), 19269#(<= main_x 62), 19270#(<= main_x 63), 19271#(<= main_x 64), 19272#(<= main_x 65), 19273#(<= main_x 66), 19274#(<= main_x 67), 19275#(<= main_x 68), 19276#(<= main_x 69), 19277#(<= main_x 70), 19278#(<= main_x 71), 19279#(<= main_x 72), 19280#(<= main_x 73), 19281#(<= main_x 74), 19282#(<= main_x 75), 19283#(<= main_x 76), 19284#(<= main_x 77), 19285#(<= main_x 78), 19286#(<= main_x 79), 19287#(<= main_x 80), 19288#(<= main_x 81), 19289#(<= main_x 82), 19290#(<= main_x 83), 19291#(<= main_x 84)] [2018-07-23 13:51:48,314 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 13:51:48,314 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:51:48,315 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:51:48,315 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:51:48,316 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand 87 states. [2018-07-23 13:51:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:48,420 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:51:48,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:51:48,420 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 86 [2018-07-23 13:51:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:48,421 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:51:48,421 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:51:48,422 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:51:48,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:51:48,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:51:48,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:51:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:51:48,426 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 86 [2018-07-23 13:51:48,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:48,427 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:51:48,427 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:51:48,427 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:51:48,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:51:48,427 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:48,428 INFO L357 BasicCegarLoop]: trace histogram [85, 1, 1] [2018-07-23 13:51:48,428 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:48,428 INFO L82 PathProgramCache]: Analyzing trace with hash 332113208, now seen corresponding path program 85 times [2018-07-23 13:51:48,428 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,791 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 13:51:48,791 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,791 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:51:48,792 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,792 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 13:51:48,792 INFO L185 omatonBuilderFactory]: Interpolants [19712#(<= main_x 64), 19713#(<= main_x 65), 19714#(<= main_x 66), 19715#(<= main_x 67), 19716#(<= main_x 68), 19717#(<= main_x 69), 19718#(<= main_x 70), 19719#(<= main_x 71), 19720#(<= main_x 72), 19721#(<= main_x 73), 19722#(<= main_x 74), 19723#(<= main_x 75), 19724#(<= main_x 76), 19725#(<= main_x 77), 19726#(<= main_x 78), 19727#(<= main_x 79), 19728#(<= main_x 80), 19729#(<= main_x 81), 19730#(<= main_x 82), 19731#(<= main_x 83), 19732#(<= main_x 84), 19733#(<= main_x 85), 19646#true, 19647#false, 19648#(<= main_x 0), 19649#(<= main_x 1), 19650#(<= main_x 2), 19651#(<= main_x 3), 19652#(<= main_x 4), 19653#(<= main_x 5), 19654#(<= main_x 6), 19655#(<= main_x 7), 19656#(<= main_x 8), 19657#(<= main_x 9), 19658#(<= main_x 10), 19659#(<= main_x 11), 19660#(<= main_x 12), 19661#(<= main_x 13), 19662#(<= main_x 14), 19663#(<= main_x 15), 19664#(<= main_x 16), 19665#(<= main_x 17), 19666#(<= main_x 18), 19667#(<= main_x 19), 19668#(<= main_x 20), 19669#(<= main_x 21), 19670#(<= main_x 22), 19671#(<= main_x 23), 19672#(<= main_x 24), 19673#(<= main_x 25), 19674#(<= main_x 26), 19675#(<= main_x 27), 19676#(<= main_x 28), 19677#(<= main_x 29), 19678#(<= main_x 30), 19679#(<= main_x 31), 19680#(<= main_x 32), 19681#(<= main_x 33), 19682#(<= main_x 34), 19683#(<= main_x 35), 19684#(<= main_x 36), 19685#(<= main_x 37), 19686#(<= main_x 38), 19687#(<= main_x 39), 19688#(<= main_x 40), 19689#(<= main_x 41), 19690#(<= main_x 42), 19691#(<= main_x 43), 19692#(<= main_x 44), 19693#(<= main_x 45), 19694#(<= main_x 46), 19695#(<= main_x 47), 19696#(<= main_x 48), 19697#(<= main_x 49), 19698#(<= main_x 50), 19699#(<= main_x 51), 19700#(<= main_x 52), 19701#(<= main_x 53), 19702#(<= main_x 54), 19703#(<= main_x 55), 19704#(<= main_x 56), 19705#(<= main_x 57), 19706#(<= main_x 58), 19707#(<= main_x 59), 19708#(<= main_x 60), 19709#(<= main_x 61), 19710#(<= main_x 62), 19711#(<= main_x 63)] [2018-07-23 13:51:48,793 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 13:51:48,793 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:51:48,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:51:48,794 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:51:48,795 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 88 states. [2018-07-23 13:51:48,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:48,851 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2018-07-23 13:51:48,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:51:48,851 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 87 [2018-07-23 13:51:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:48,852 INFO L225 Difference]: With dead ends: 90 [2018-07-23 13:51:48,852 INFO L226 Difference]: Without dead ends: 89 [2018-07-23 13:51:48,853 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:51:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-07-23 13:51:48,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2018-07-23 13:51:48,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 13:51:48,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-07-23 13:51:48,856 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 87 [2018-07-23 13:51:48,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:48,856 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-07-23 13:51:48,856 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:51:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-07-23 13:51:48,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-23 13:51:48,857 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:48,857 INFO L357 BasicCegarLoop]: trace histogram [86, 1, 1] [2018-07-23 13:51:48,857 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1705575091, now seen corresponding path program 86 times [2018-07-23 13:51:48,858 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,162 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 13:51:49,162 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:51:49,163 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,163 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 13:51:49,163 INFO L185 omatonBuilderFactory]: Interpolants [20096#(<= main_x 2), 20097#(<= main_x 3), 20098#(<= main_x 4), 20099#(<= main_x 5), 20100#(<= main_x 6), 20101#(<= main_x 7), 20102#(<= main_x 8), 20103#(<= main_x 9), 20104#(<= main_x 10), 20105#(<= main_x 11), 20106#(<= main_x 12), 20107#(<= main_x 13), 20108#(<= main_x 14), 20109#(<= main_x 15), 20110#(<= main_x 16), 20111#(<= main_x 17), 20112#(<= main_x 18), 20113#(<= main_x 19), 20114#(<= main_x 20), 20115#(<= main_x 21), 20116#(<= main_x 22), 20117#(<= main_x 23), 20118#(<= main_x 24), 20119#(<= main_x 25), 20120#(<= main_x 26), 20121#(<= main_x 27), 20122#(<= main_x 28), 20123#(<= main_x 29), 20124#(<= main_x 30), 20125#(<= main_x 31), 20126#(<= main_x 32), 20127#(<= main_x 33), 20128#(<= main_x 34), 20129#(<= main_x 35), 20130#(<= main_x 36), 20131#(<= main_x 37), 20132#(<= main_x 38), 20133#(<= main_x 39), 20134#(<= main_x 40), 20135#(<= main_x 41), 20136#(<= main_x 42), 20137#(<= main_x 43), 20138#(<= main_x 44), 20139#(<= main_x 45), 20140#(<= main_x 46), 20141#(<= main_x 47), 20142#(<= main_x 48), 20143#(<= main_x 49), 20144#(<= main_x 50), 20145#(<= main_x 51), 20146#(<= main_x 52), 20147#(<= main_x 53), 20148#(<= main_x 54), 20149#(<= main_x 55), 20150#(<= main_x 56), 20151#(<= main_x 57), 20152#(<= main_x 58), 20153#(<= main_x 59), 20154#(<= main_x 60), 20155#(<= main_x 61), 20156#(<= main_x 62), 20157#(<= main_x 63), 20158#(<= main_x 64), 20159#(<= main_x 65), 20160#(<= main_x 66), 20161#(<= main_x 67), 20162#(<= main_x 68), 20163#(<= main_x 69), 20164#(<= main_x 70), 20165#(<= main_x 71), 20166#(<= main_x 72), 20167#(<= main_x 73), 20168#(<= main_x 74), 20169#(<= main_x 75), 20170#(<= main_x 76), 20171#(<= main_x 77), 20172#(<= main_x 78), 20173#(<= main_x 79), 20174#(<= main_x 80), 20175#(<= main_x 81), 20176#(<= main_x 82), 20177#(<= main_x 83), 20178#(<= main_x 84), 20179#(<= main_x 85), 20180#(<= main_x 86), 20092#true, 20093#false, 20094#(<= main_x 0), 20095#(<= main_x 1)] [2018-07-23 13:51:49,164 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 13:51:49,164 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:51:49,165 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:51:49,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:51:49,165 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 89 states. [2018-07-23 13:51:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,252 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:51:49,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:51:49,252 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 88 [2018-07-23 13:51:49,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,253 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:51:49,253 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:51:49,254 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:51:49,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:51:49,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:51:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:51:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:51:49,257 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 88 [2018-07-23 13:51:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,257 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:51:49,257 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:51:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:51:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:51:49,258 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,258 INFO L357 BasicCegarLoop]: trace histogram [87, 1, 1] [2018-07-23 13:51:49,258 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1333220504, now seen corresponding path program 87 times [2018-07-23 13:51:49,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,755 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 13:51:49,756 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,756 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:51:49,756 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,756 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 13:51:49,757 INFO L185 omatonBuilderFactory]: Interpolants [20608#(<= main_x 63), 20609#(<= main_x 64), 20610#(<= main_x 65), 20611#(<= main_x 66), 20612#(<= main_x 67), 20613#(<= main_x 68), 20614#(<= main_x 69), 20615#(<= main_x 70), 20616#(<= main_x 71), 20617#(<= main_x 72), 20618#(<= main_x 73), 20619#(<= main_x 74), 20620#(<= main_x 75), 20621#(<= main_x 76), 20622#(<= main_x 77), 20623#(<= main_x 78), 20624#(<= main_x 79), 20625#(<= main_x 80), 20626#(<= main_x 81), 20627#(<= main_x 82), 20628#(<= main_x 83), 20629#(<= main_x 84), 20630#(<= main_x 85), 20631#(<= main_x 86), 20632#(<= main_x 87), 20543#true, 20544#false, 20545#(<= main_x 0), 20546#(<= main_x 1), 20547#(<= main_x 2), 20548#(<= main_x 3), 20549#(<= main_x 4), 20550#(<= main_x 5), 20551#(<= main_x 6), 20552#(<= main_x 7), 20553#(<= main_x 8), 20554#(<= main_x 9), 20555#(<= main_x 10), 20556#(<= main_x 11), 20557#(<= main_x 12), 20558#(<= main_x 13), 20559#(<= main_x 14), 20560#(<= main_x 15), 20561#(<= main_x 16), 20562#(<= main_x 17), 20563#(<= main_x 18), 20564#(<= main_x 19), 20565#(<= main_x 20), 20566#(<= main_x 21), 20567#(<= main_x 22), 20568#(<= main_x 23), 20569#(<= main_x 24), 20570#(<= main_x 25), 20571#(<= main_x 26), 20572#(<= main_x 27), 20573#(<= main_x 28), 20574#(<= main_x 29), 20575#(<= main_x 30), 20576#(<= main_x 31), 20577#(<= main_x 32), 20578#(<= main_x 33), 20579#(<= main_x 34), 20580#(<= main_x 35), 20581#(<= main_x 36), 20582#(<= main_x 37), 20583#(<= main_x 38), 20584#(<= main_x 39), 20585#(<= main_x 40), 20586#(<= main_x 41), 20587#(<= main_x 42), 20588#(<= main_x 43), 20589#(<= main_x 44), 20590#(<= main_x 45), 20591#(<= main_x 46), 20592#(<= main_x 47), 20593#(<= main_x 48), 20594#(<= main_x 49), 20595#(<= main_x 50), 20596#(<= main_x 51), 20597#(<= main_x 52), 20598#(<= main_x 53), 20599#(<= main_x 54), 20600#(<= main_x 55), 20601#(<= main_x 56), 20602#(<= main_x 57), 20603#(<= main_x 58), 20604#(<= main_x 59), 20605#(<= main_x 60), 20606#(<= main_x 61), 20607#(<= main_x 62)] [2018-07-23 13:51:49,757 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 13:51:49,758 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:51:49,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:51:49,759 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:51:49,759 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 90 states. [2018-07-23 13:51:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,825 INFO L93 Difference]: Finished difference Result 92 states and 92 transitions. [2018-07-23 13:51:49,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:51:49,825 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 89 [2018-07-23 13:51:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,826 INFO L225 Difference]: With dead ends: 92 [2018-07-23 13:51:49,826 INFO L226 Difference]: Without dead ends: 91 [2018-07-23 13:51:49,827 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:51:49,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-07-23 13:51:49,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-07-23 13:51:49,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-07-23 13:51:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2018-07-23 13:51:49,831 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 89 [2018-07-23 13:51:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,831 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2018-07-23 13:51:49,831 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:51:49,831 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2018-07-23 13:51:49,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 13:51:49,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,832 INFO L357 BasicCegarLoop]: trace histogram [88, 1, 1] [2018-07-23 13:51:49,833 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1619837101, now seen corresponding path program 88 times [2018-07-23 13:51:49,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:50,263 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 13:51:50,263 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:50,263 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:51:50,264 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:50,264 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 13:51:50,265 INFO L185 omatonBuilderFactory]: Interpolants [20999#true, 21000#false, 21001#(<= main_x 0), 21002#(<= main_x 1), 21003#(<= main_x 2), 21004#(<= main_x 3), 21005#(<= main_x 4), 21006#(<= main_x 5), 21007#(<= main_x 6), 21008#(<= main_x 7), 21009#(<= main_x 8), 21010#(<= main_x 9), 21011#(<= main_x 10), 21012#(<= main_x 11), 21013#(<= main_x 12), 21014#(<= main_x 13), 21015#(<= main_x 14), 21016#(<= main_x 15), 21017#(<= main_x 16), 21018#(<= main_x 17), 21019#(<= main_x 18), 21020#(<= main_x 19), 21021#(<= main_x 20), 21022#(<= main_x 21), 21023#(<= main_x 22), 21024#(<= main_x 23), 21025#(<= main_x 24), 21026#(<= main_x 25), 21027#(<= main_x 26), 21028#(<= main_x 27), 21029#(<= main_x 28), 21030#(<= main_x 29), 21031#(<= main_x 30), 21032#(<= main_x 31), 21033#(<= main_x 32), 21034#(<= main_x 33), 21035#(<= main_x 34), 21036#(<= main_x 35), 21037#(<= main_x 36), 21038#(<= main_x 37), 21039#(<= main_x 38), 21040#(<= main_x 39), 21041#(<= main_x 40), 21042#(<= main_x 41), 21043#(<= main_x 42), 21044#(<= main_x 43), 21045#(<= main_x 44), 21046#(<= main_x 45), 21047#(<= main_x 46), 21048#(<= main_x 47), 21049#(<= main_x 48), 21050#(<= main_x 49), 21051#(<= main_x 50), 21052#(<= main_x 51), 21053#(<= main_x 52), 21054#(<= main_x 53), 21055#(<= main_x 54), 21056#(<= main_x 55), 21057#(<= main_x 56), 21058#(<= main_x 57), 21059#(<= main_x 58), 21060#(<= main_x 59), 21061#(<= main_x 60), 21062#(<= main_x 61), 21063#(<= main_x 62), 21064#(<= main_x 63), 21065#(<= main_x 64), 21066#(<= main_x 65), 21067#(<= main_x 66), 21068#(<= main_x 67), 21069#(<= main_x 68), 21070#(<= main_x 69), 21071#(<= main_x 70), 21072#(<= main_x 71), 21073#(<= main_x 72), 21074#(<= main_x 73), 21075#(<= main_x 74), 21076#(<= main_x 75), 21077#(<= main_x 76), 21078#(<= main_x 77), 21079#(<= main_x 78), 21080#(<= main_x 79), 21081#(<= main_x 80), 21082#(<= main_x 81), 21083#(<= main_x 82), 21084#(<= main_x 83), 21085#(<= main_x 84), 21086#(<= main_x 85), 21087#(<= main_x 86), 21088#(<= main_x 87), 21089#(<= main_x 88)] [2018-07-23 13:51:50,266 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 13:51:50,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:51:50,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:51:50,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:51:50,267 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand 91 states. [2018-07-23 13:51:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,345 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:51:50,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:51:50,345 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 90 [2018-07-23 13:51:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,346 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:51:50,346 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:51:50,346 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:51:50,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:51:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:51:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:51:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:51:50,349 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 90 [2018-07-23 13:51:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,349 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:51:50,349 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:51:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:51:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:51:50,350 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,350 INFO L357 BasicCegarLoop]: trace histogram [89, 1, 1] [2018-07-23 13:51:50,350 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1324657656, now seen corresponding path program 89 times [2018-07-23 13:51:50,351 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:50,671 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 13:51:50,672 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:50,672 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:51:50,672 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:50,672 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 13:51:50,673 INFO L185 omatonBuilderFactory]: Interpolants [21504#(<= main_x 42), 21505#(<= main_x 43), 21506#(<= main_x 44), 21507#(<= main_x 45), 21508#(<= main_x 46), 21509#(<= main_x 47), 21510#(<= main_x 48), 21511#(<= main_x 49), 21512#(<= main_x 50), 21513#(<= main_x 51), 21514#(<= main_x 52), 21515#(<= main_x 53), 21516#(<= main_x 54), 21517#(<= main_x 55), 21518#(<= main_x 56), 21519#(<= main_x 57), 21520#(<= main_x 58), 21521#(<= main_x 59), 21522#(<= main_x 60), 21523#(<= main_x 61), 21524#(<= main_x 62), 21525#(<= main_x 63), 21526#(<= main_x 64), 21527#(<= main_x 65), 21528#(<= main_x 66), 21529#(<= main_x 67), 21530#(<= main_x 68), 21531#(<= main_x 69), 21532#(<= main_x 70), 21533#(<= main_x 71), 21534#(<= main_x 72), 21535#(<= main_x 73), 21536#(<= main_x 74), 21537#(<= main_x 75), 21538#(<= main_x 76), 21539#(<= main_x 77), 21540#(<= main_x 78), 21541#(<= main_x 79), 21542#(<= main_x 80), 21543#(<= main_x 81), 21544#(<= main_x 82), 21545#(<= main_x 83), 21546#(<= main_x 84), 21547#(<= main_x 85), 21548#(<= main_x 86), 21549#(<= main_x 87), 21550#(<= main_x 88), 21551#(<= main_x 89), 21460#true, 21461#false, 21462#(<= main_x 0), 21463#(<= main_x 1), 21464#(<= main_x 2), 21465#(<= main_x 3), 21466#(<= main_x 4), 21467#(<= main_x 5), 21468#(<= main_x 6), 21469#(<= main_x 7), 21470#(<= main_x 8), 21471#(<= main_x 9), 21472#(<= main_x 10), 21473#(<= main_x 11), 21474#(<= main_x 12), 21475#(<= main_x 13), 21476#(<= main_x 14), 21477#(<= main_x 15), 21478#(<= main_x 16), 21479#(<= main_x 17), 21480#(<= main_x 18), 21481#(<= main_x 19), 21482#(<= main_x 20), 21483#(<= main_x 21), 21484#(<= main_x 22), 21485#(<= main_x 23), 21486#(<= main_x 24), 21487#(<= main_x 25), 21488#(<= main_x 26), 21489#(<= main_x 27), 21490#(<= main_x 28), 21491#(<= main_x 29), 21492#(<= main_x 30), 21493#(<= main_x 31), 21494#(<= main_x 32), 21495#(<= main_x 33), 21496#(<= main_x 34), 21497#(<= main_x 35), 21498#(<= main_x 36), 21499#(<= main_x 37), 21500#(<= main_x 38), 21501#(<= main_x 39), 21502#(<= main_x 40), 21503#(<= main_x 41)] [2018-07-23 13:51:50,673 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 13:51:50,673 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:51:50,674 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:51:50,674 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:51:50,674 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 92 states. [2018-07-23 13:51:50,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,726 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-07-23 13:51:50,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:51:50,727 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 91 [2018-07-23 13:51:50,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,728 INFO L225 Difference]: With dead ends: 94 [2018-07-23 13:51:50,728 INFO L226 Difference]: Without dead ends: 93 [2018-07-23 13:51:50,729 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:51:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-07-23 13:51:50,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2018-07-23 13:51:50,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-07-23 13:51:50,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2018-07-23 13:51:50,732 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 91 [2018-07-23 13:51:50,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,732 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 93 transitions. [2018-07-23 13:51:50,732 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:51:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 93 transitions. [2018-07-23 13:51:50,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-23 13:51:50,733 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,734 INFO L357 BasicCegarLoop]: trace histogram [90, 1, 1] [2018-07-23 13:51:50,734 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1885285389, now seen corresponding path program 90 times [2018-07-23 13:51:50,734 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:51,146 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 13:51:51,146 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:51,146 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:51:51,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:51,147 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 13:51:51,147 INFO L185 omatonBuilderFactory]: Interpolants [22016#(<= main_x 88), 22017#(<= main_x 89), 22018#(<= main_x 90), 21926#true, 21927#false, 21928#(<= main_x 0), 21929#(<= main_x 1), 21930#(<= main_x 2), 21931#(<= main_x 3), 21932#(<= main_x 4), 21933#(<= main_x 5), 21934#(<= main_x 6), 21935#(<= main_x 7), 21936#(<= main_x 8), 21937#(<= main_x 9), 21938#(<= main_x 10), 21939#(<= main_x 11), 21940#(<= main_x 12), 21941#(<= main_x 13), 21942#(<= main_x 14), 21943#(<= main_x 15), 21944#(<= main_x 16), 21945#(<= main_x 17), 21946#(<= main_x 18), 21947#(<= main_x 19), 21948#(<= main_x 20), 21949#(<= main_x 21), 21950#(<= main_x 22), 21951#(<= main_x 23), 21952#(<= main_x 24), 21953#(<= main_x 25), 21954#(<= main_x 26), 21955#(<= main_x 27), 21956#(<= main_x 28), 21957#(<= main_x 29), 21958#(<= main_x 30), 21959#(<= main_x 31), 21960#(<= main_x 32), 21961#(<= main_x 33), 21962#(<= main_x 34), 21963#(<= main_x 35), 21964#(<= main_x 36), 21965#(<= main_x 37), 21966#(<= main_x 38), 21967#(<= main_x 39), 21968#(<= main_x 40), 21969#(<= main_x 41), 21970#(<= main_x 42), 21971#(<= main_x 43), 21972#(<= main_x 44), 21973#(<= main_x 45), 21974#(<= main_x 46), 21975#(<= main_x 47), 21976#(<= main_x 48), 21977#(<= main_x 49), 21978#(<= main_x 50), 21979#(<= main_x 51), 21980#(<= main_x 52), 21981#(<= main_x 53), 21982#(<= main_x 54), 21983#(<= main_x 55), 21984#(<= main_x 56), 21985#(<= main_x 57), 21986#(<= main_x 58), 21987#(<= main_x 59), 21988#(<= main_x 60), 21989#(<= main_x 61), 21990#(<= main_x 62), 21991#(<= main_x 63), 21992#(<= main_x 64), 21993#(<= main_x 65), 21994#(<= main_x 66), 21995#(<= main_x 67), 21996#(<= main_x 68), 21997#(<= main_x 69), 21998#(<= main_x 70), 21999#(<= main_x 71), 22000#(<= main_x 72), 22001#(<= main_x 73), 22002#(<= main_x 74), 22003#(<= main_x 75), 22004#(<= main_x 76), 22005#(<= main_x 77), 22006#(<= main_x 78), 22007#(<= main_x 79), 22008#(<= main_x 80), 22009#(<= main_x 81), 22010#(<= main_x 82), 22011#(<= main_x 83), 22012#(<= main_x 84), 22013#(<= main_x 85), 22014#(<= main_x 86), 22015#(<= main_x 87)] [2018-07-23 13:51:51,147 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 13:51:51,148 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:51:51,149 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:51:51,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:51:51,149 INFO L87 Difference]: Start difference. First operand 93 states and 93 transitions. Second operand 93 states. [2018-07-23 13:51:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:51,244 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:51:51,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:51:51,245 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 92 [2018-07-23 13:51:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:51,246 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:51:51,246 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:51:51,246 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:51:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:51:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:51:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:51:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:51:51,252 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 92 [2018-07-23 13:51:51,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:51,253 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:51:51,253 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:51:51,253 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:51:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:51:51,254 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:51,254 INFO L357 BasicCegarLoop]: trace histogram [91, 1, 1] [2018-07-23 13:51:51,254 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:51,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1685695320, now seen corresponding path program 91 times [2018-07-23 13:51:51,255 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:51,596 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 13:51:51,596 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:51,596 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:51:51,596 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:51,597 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 13:51:51,597 INFO L185 omatonBuilderFactory]: Interpolants [22400#(<= main_x 1), 22401#(<= main_x 2), 22402#(<= main_x 3), 22403#(<= main_x 4), 22404#(<= main_x 5), 22405#(<= main_x 6), 22406#(<= main_x 7), 22407#(<= main_x 8), 22408#(<= main_x 9), 22409#(<= main_x 10), 22410#(<= main_x 11), 22411#(<= main_x 12), 22412#(<= main_x 13), 22413#(<= main_x 14), 22414#(<= main_x 15), 22415#(<= main_x 16), 22416#(<= main_x 17), 22417#(<= main_x 18), 22418#(<= main_x 19), 22419#(<= main_x 20), 22420#(<= main_x 21), 22421#(<= main_x 22), 22422#(<= main_x 23), 22423#(<= main_x 24), 22424#(<= main_x 25), 22425#(<= main_x 26), 22426#(<= main_x 27), 22427#(<= main_x 28), 22428#(<= main_x 29), 22429#(<= main_x 30), 22430#(<= main_x 31), 22431#(<= main_x 32), 22432#(<= main_x 33), 22433#(<= main_x 34), 22434#(<= main_x 35), 22435#(<= main_x 36), 22436#(<= main_x 37), 22437#(<= main_x 38), 22438#(<= main_x 39), 22439#(<= main_x 40), 22440#(<= main_x 41), 22441#(<= main_x 42), 22442#(<= main_x 43), 22443#(<= main_x 44), 22444#(<= main_x 45), 22445#(<= main_x 46), 22446#(<= main_x 47), 22447#(<= main_x 48), 22448#(<= main_x 49), 22449#(<= main_x 50), 22450#(<= main_x 51), 22451#(<= main_x 52), 22452#(<= main_x 53), 22453#(<= main_x 54), 22454#(<= main_x 55), 22455#(<= main_x 56), 22456#(<= main_x 57), 22457#(<= main_x 58), 22458#(<= main_x 59), 22459#(<= main_x 60), 22460#(<= main_x 61), 22461#(<= main_x 62), 22462#(<= main_x 63), 22463#(<= main_x 64), 22464#(<= main_x 65), 22465#(<= main_x 66), 22466#(<= main_x 67), 22467#(<= main_x 68), 22468#(<= main_x 69), 22469#(<= main_x 70), 22470#(<= main_x 71), 22471#(<= main_x 72), 22472#(<= main_x 73), 22473#(<= main_x 74), 22474#(<= main_x 75), 22475#(<= main_x 76), 22476#(<= main_x 77), 22477#(<= main_x 78), 22478#(<= main_x 79), 22479#(<= main_x 80), 22480#(<= main_x 81), 22481#(<= main_x 82), 22482#(<= main_x 83), 22483#(<= main_x 84), 22484#(<= main_x 85), 22485#(<= main_x 86), 22486#(<= main_x 87), 22487#(<= main_x 88), 22488#(<= main_x 89), 22489#(<= main_x 90), 22490#(<= main_x 91), 22397#true, 22398#false, 22399#(<= main_x 0)] [2018-07-23 13:51:51,597 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 13:51:51,597 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:51:51,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:51:51,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:51:51,599 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 94 states. [2018-07-23 13:51:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:51,687 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2018-07-23 13:51:51,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:51:51,687 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 93 [2018-07-23 13:51:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:51,688 INFO L225 Difference]: With dead ends: 96 [2018-07-23 13:51:51,688 INFO L226 Difference]: Without dead ends: 95 [2018-07-23 13:51:51,689 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:51:51,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-07-23 13:51:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-07-23 13:51:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-07-23 13:51:51,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2018-07-23 13:51:51,691 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 93 [2018-07-23 13:51:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:51,692 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2018-07-23 13:51:51,692 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:51:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2018-07-23 13:51:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-23 13:51:51,693 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:51,693 INFO L357 BasicCegarLoop]: trace histogram [92, 1, 1] [2018-07-23 13:51:51,693 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:51,693 INFO L82 PathProgramCache]: Analyzing trace with hash 716947603, now seen corresponding path program 92 times [2018-07-23 13:51:51,693 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,001 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 13:51:52,002 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,002 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:51:52,002 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,002 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 13:51:52,003 INFO L185 omatonBuilderFactory]: Interpolants [22912#(<= main_x 37), 22913#(<= main_x 38), 22914#(<= main_x 39), 22915#(<= main_x 40), 22916#(<= main_x 41), 22917#(<= main_x 42), 22918#(<= main_x 43), 22919#(<= main_x 44), 22920#(<= main_x 45), 22921#(<= main_x 46), 22922#(<= main_x 47), 22923#(<= main_x 48), 22924#(<= main_x 49), 22925#(<= main_x 50), 22926#(<= main_x 51), 22927#(<= main_x 52), 22928#(<= main_x 53), 22929#(<= main_x 54), 22930#(<= main_x 55), 22931#(<= main_x 56), 22932#(<= main_x 57), 22933#(<= main_x 58), 22934#(<= main_x 59), 22935#(<= main_x 60), 22936#(<= main_x 61), 22937#(<= main_x 62), 22938#(<= main_x 63), 22939#(<= main_x 64), 22940#(<= main_x 65), 22941#(<= main_x 66), 22942#(<= main_x 67), 22943#(<= main_x 68), 22944#(<= main_x 69), 22945#(<= main_x 70), 22946#(<= main_x 71), 22947#(<= main_x 72), 22948#(<= main_x 73), 22949#(<= main_x 74), 22950#(<= main_x 75), 22951#(<= main_x 76), 22952#(<= main_x 77), 22953#(<= main_x 78), 22954#(<= main_x 79), 22955#(<= main_x 80), 22956#(<= main_x 81), 22957#(<= main_x 82), 22958#(<= main_x 83), 22959#(<= main_x 84), 22960#(<= main_x 85), 22961#(<= main_x 86), 22962#(<= main_x 87), 22963#(<= main_x 88), 22964#(<= main_x 89), 22965#(<= main_x 90), 22966#(<= main_x 91), 22967#(<= main_x 92), 22873#true, 22874#false, 22875#(<= main_x 0), 22876#(<= main_x 1), 22877#(<= main_x 2), 22878#(<= main_x 3), 22879#(<= main_x 4), 22880#(<= main_x 5), 22881#(<= main_x 6), 22882#(<= main_x 7), 22883#(<= main_x 8), 22884#(<= main_x 9), 22885#(<= main_x 10), 22886#(<= main_x 11), 22887#(<= main_x 12), 22888#(<= main_x 13), 22889#(<= main_x 14), 22890#(<= main_x 15), 22891#(<= main_x 16), 22892#(<= main_x 17), 22893#(<= main_x 18), 22894#(<= main_x 19), 22895#(<= main_x 20), 22896#(<= main_x 21), 22897#(<= main_x 22), 22898#(<= main_x 23), 22899#(<= main_x 24), 22900#(<= main_x 25), 22901#(<= main_x 26), 22902#(<= main_x 27), 22903#(<= main_x 28), 22904#(<= main_x 29), 22905#(<= main_x 30), 22906#(<= main_x 31), 22907#(<= main_x 32), 22908#(<= main_x 33), 22909#(<= main_x 34), 22910#(<= main_x 35), 22911#(<= main_x 36)] [2018-07-23 13:51:52,003 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 13:51:52,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:51:52,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:51:52,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:51:52,005 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand 95 states. [2018-07-23 13:51:52,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,070 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:51:52,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:51:52,070 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 94 [2018-07-23 13:51:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,071 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:51:52,071 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:51:52,072 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:51:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:51:52,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:51:52,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:51:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:51:52,075 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 94 [2018-07-23 13:51:52,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,075 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:51:52,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:51:52,075 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:51:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:51:52,076 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,076 INFO L357 BasicCegarLoop]: trace histogram [93, 1, 1] [2018-07-23 13:51:52,076 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,077 INFO L82 PathProgramCache]: Analyzing trace with hash 750539448, now seen corresponding path program 93 times [2018-07-23 13:51:52,077 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,454 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 13:51:52,455 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,455 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:51:52,455 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,455 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 13:51:52,456 INFO L185 omatonBuilderFactory]: Interpolants [23424#(<= main_x 68), 23425#(<= main_x 69), 23426#(<= main_x 70), 23427#(<= main_x 71), 23428#(<= main_x 72), 23429#(<= main_x 73), 23430#(<= main_x 74), 23431#(<= main_x 75), 23432#(<= main_x 76), 23433#(<= main_x 77), 23434#(<= main_x 78), 23435#(<= main_x 79), 23436#(<= main_x 80), 23437#(<= main_x 81), 23438#(<= main_x 82), 23439#(<= main_x 83), 23440#(<= main_x 84), 23441#(<= main_x 85), 23442#(<= main_x 86), 23443#(<= main_x 87), 23444#(<= main_x 88), 23445#(<= main_x 89), 23446#(<= main_x 90), 23447#(<= main_x 91), 23448#(<= main_x 92), 23449#(<= main_x 93), 23354#true, 23355#false, 23356#(<= main_x 0), 23357#(<= main_x 1), 23358#(<= main_x 2), 23359#(<= main_x 3), 23360#(<= main_x 4), 23361#(<= main_x 5), 23362#(<= main_x 6), 23363#(<= main_x 7), 23364#(<= main_x 8), 23365#(<= main_x 9), 23366#(<= main_x 10), 23367#(<= main_x 11), 23368#(<= main_x 12), 23369#(<= main_x 13), 23370#(<= main_x 14), 23371#(<= main_x 15), 23372#(<= main_x 16), 23373#(<= main_x 17), 23374#(<= main_x 18), 23375#(<= main_x 19), 23376#(<= main_x 20), 23377#(<= main_x 21), 23378#(<= main_x 22), 23379#(<= main_x 23), 23380#(<= main_x 24), 23381#(<= main_x 25), 23382#(<= main_x 26), 23383#(<= main_x 27), 23384#(<= main_x 28), 23385#(<= main_x 29), 23386#(<= main_x 30), 23387#(<= main_x 31), 23388#(<= main_x 32), 23389#(<= main_x 33), 23390#(<= main_x 34), 23391#(<= main_x 35), 23392#(<= main_x 36), 23393#(<= main_x 37), 23394#(<= main_x 38), 23395#(<= main_x 39), 23396#(<= main_x 40), 23397#(<= main_x 41), 23398#(<= main_x 42), 23399#(<= main_x 43), 23400#(<= main_x 44), 23401#(<= main_x 45), 23402#(<= main_x 46), 23403#(<= main_x 47), 23404#(<= main_x 48), 23405#(<= main_x 49), 23406#(<= main_x 50), 23407#(<= main_x 51), 23408#(<= main_x 52), 23409#(<= main_x 53), 23410#(<= main_x 54), 23411#(<= main_x 55), 23412#(<= main_x 56), 23413#(<= main_x 57), 23414#(<= main_x 58), 23415#(<= main_x 59), 23416#(<= main_x 60), 23417#(<= main_x 61), 23418#(<= main_x 62), 23419#(<= main_x 63), 23420#(<= main_x 64), 23421#(<= main_x 65), 23422#(<= main_x 66), 23423#(<= main_x 67)] [2018-07-23 13:51:52,456 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 13:51:52,456 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:51:52,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:51:52,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:51:52,457 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 96 states. [2018-07-23 13:51:52,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,513 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2018-07-23 13:51:52,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:51:52,513 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 95 [2018-07-23 13:51:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,513 INFO L225 Difference]: With dead ends: 98 [2018-07-23 13:51:52,513 INFO L226 Difference]: Without dead ends: 97 [2018-07-23 13:51:52,514 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:51:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-07-23 13:51:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-07-23 13:51:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-07-23 13:51:52,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2018-07-23 13:51:52,516 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 95 [2018-07-23 13:51:52,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,517 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2018-07-23 13:51:52,517 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:51:52,517 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2018-07-23 13:51:52,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-07-23 13:51:52,517 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,517 INFO L357 BasicCegarLoop]: trace histogram [94, 1, 1] [2018-07-23 13:51:52,518 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1791886643, now seen corresponding path program 94 times [2018-07-23 13:51:52,518 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,892 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 13:51:52,892 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,892 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:51:52,892 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,893 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 13:51:52,893 INFO L185 omatonBuilderFactory]: Interpolants [23840#true, 23841#false, 23842#(<= main_x 0), 23843#(<= main_x 1), 23844#(<= main_x 2), 23845#(<= main_x 3), 23846#(<= main_x 4), 23847#(<= main_x 5), 23848#(<= main_x 6), 23849#(<= main_x 7), 23850#(<= main_x 8), 23851#(<= main_x 9), 23852#(<= main_x 10), 23853#(<= main_x 11), 23854#(<= main_x 12), 23855#(<= main_x 13), 23856#(<= main_x 14), 23857#(<= main_x 15), 23858#(<= main_x 16), 23859#(<= main_x 17), 23860#(<= main_x 18), 23861#(<= main_x 19), 23862#(<= main_x 20), 23863#(<= main_x 21), 23864#(<= main_x 22), 23865#(<= main_x 23), 23866#(<= main_x 24), 23867#(<= main_x 25), 23868#(<= main_x 26), 23869#(<= main_x 27), 23870#(<= main_x 28), 23871#(<= main_x 29), 23872#(<= main_x 30), 23873#(<= main_x 31), 23874#(<= main_x 32), 23875#(<= main_x 33), 23876#(<= main_x 34), 23877#(<= main_x 35), 23878#(<= main_x 36), 23879#(<= main_x 37), 23880#(<= main_x 38), 23881#(<= main_x 39), 23882#(<= main_x 40), 23883#(<= main_x 41), 23884#(<= main_x 42), 23885#(<= main_x 43), 23886#(<= main_x 44), 23887#(<= main_x 45), 23888#(<= main_x 46), 23889#(<= main_x 47), 23890#(<= main_x 48), 23891#(<= main_x 49), 23892#(<= main_x 50), 23893#(<= main_x 51), 23894#(<= main_x 52), 23895#(<= main_x 53), 23896#(<= main_x 54), 23897#(<= main_x 55), 23898#(<= main_x 56), 23899#(<= main_x 57), 23900#(<= main_x 58), 23901#(<= main_x 59), 23902#(<= main_x 60), 23903#(<= main_x 61), 23904#(<= main_x 62), 23905#(<= main_x 63), 23906#(<= main_x 64), 23907#(<= main_x 65), 23908#(<= main_x 66), 23909#(<= main_x 67), 23910#(<= main_x 68), 23911#(<= main_x 69), 23912#(<= main_x 70), 23913#(<= main_x 71), 23914#(<= main_x 72), 23915#(<= main_x 73), 23916#(<= main_x 74), 23917#(<= main_x 75), 23918#(<= main_x 76), 23919#(<= main_x 77), 23920#(<= main_x 78), 23921#(<= main_x 79), 23922#(<= main_x 80), 23923#(<= main_x 81), 23924#(<= main_x 82), 23925#(<= main_x 83), 23926#(<= main_x 84), 23927#(<= main_x 85), 23928#(<= main_x 86), 23929#(<= main_x 87), 23930#(<= main_x 88), 23931#(<= main_x 89), 23932#(<= main_x 90), 23933#(<= main_x 91), 23934#(<= main_x 92), 23935#(<= main_x 93), 23936#(<= main_x 94)] [2018-07-23 13:51:52,893 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 13:51:52,893 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:51:52,894 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:51:52,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:51:52,895 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 97 states. [2018-07-23 13:51:52,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,974 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:51:52,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:51:52,974 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 96 [2018-07-23 13:51:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,975 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:51:52,975 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:51:52,975 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:51:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:51:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:51:52,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:51:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:51:52,978 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 96 [2018-07-23 13:51:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,979 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:51:52,979 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:51:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:51:52,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:51:52,979 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,979 INFO L357 BasicCegarLoop]: trace histogram [95, 1, 1] [2018-07-23 13:51:52,979 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,980 INFO L82 PathProgramCache]: Analyzing trace with hash -286088680, now seen corresponding path program 95 times [2018-07-23 13:51:52,980 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,274 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 13:51:53,274 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,274 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:51:53,275 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,275 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 13:51:53,275 INFO L185 omatonBuilderFactory]: Interpolants [24331#true, 24332#false, 24333#(<= main_x 0), 24334#(<= main_x 1), 24335#(<= main_x 2), 24336#(<= main_x 3), 24337#(<= main_x 4), 24338#(<= main_x 5), 24339#(<= main_x 6), 24340#(<= main_x 7), 24341#(<= main_x 8), 24342#(<= main_x 9), 24343#(<= main_x 10), 24344#(<= main_x 11), 24345#(<= main_x 12), 24346#(<= main_x 13), 24347#(<= main_x 14), 24348#(<= main_x 15), 24349#(<= main_x 16), 24350#(<= main_x 17), 24351#(<= main_x 18), 24352#(<= main_x 19), 24353#(<= main_x 20), 24354#(<= main_x 21), 24355#(<= main_x 22), 24356#(<= main_x 23), 24357#(<= main_x 24), 24358#(<= main_x 25), 24359#(<= main_x 26), 24360#(<= main_x 27), 24361#(<= main_x 28), 24362#(<= main_x 29), 24363#(<= main_x 30), 24364#(<= main_x 31), 24365#(<= main_x 32), 24366#(<= main_x 33), 24367#(<= main_x 34), 24368#(<= main_x 35), 24369#(<= main_x 36), 24370#(<= main_x 37), 24371#(<= main_x 38), 24372#(<= main_x 39), 24373#(<= main_x 40), 24374#(<= main_x 41), 24375#(<= main_x 42), 24376#(<= main_x 43), 24377#(<= main_x 44), 24378#(<= main_x 45), 24379#(<= main_x 46), 24380#(<= main_x 47), 24381#(<= main_x 48), 24382#(<= main_x 49), 24383#(<= main_x 50), 24384#(<= main_x 51), 24385#(<= main_x 52), 24386#(<= main_x 53), 24387#(<= main_x 54), 24388#(<= main_x 55), 24389#(<= main_x 56), 24390#(<= main_x 57), 24391#(<= main_x 58), 24392#(<= main_x 59), 24393#(<= main_x 60), 24394#(<= main_x 61), 24395#(<= main_x 62), 24396#(<= main_x 63), 24397#(<= main_x 64), 24398#(<= main_x 65), 24399#(<= main_x 66), 24400#(<= main_x 67), 24401#(<= main_x 68), 24402#(<= main_x 69), 24403#(<= main_x 70), 24404#(<= main_x 71), 24405#(<= main_x 72), 24406#(<= main_x 73), 24407#(<= main_x 74), 24408#(<= main_x 75), 24409#(<= main_x 76), 24410#(<= main_x 77), 24411#(<= main_x 78), 24412#(<= main_x 79), 24413#(<= main_x 80), 24414#(<= main_x 81), 24415#(<= main_x 82), 24416#(<= main_x 83), 24417#(<= main_x 84), 24418#(<= main_x 85), 24419#(<= main_x 86), 24420#(<= main_x 87), 24421#(<= main_x 88), 24422#(<= main_x 89), 24423#(<= main_x 90), 24424#(<= main_x 91), 24425#(<= main_x 92), 24426#(<= main_x 93), 24427#(<= main_x 94), 24428#(<= main_x 95)] [2018-07-23 13:51:53,275 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 13:51:53,276 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:51:53,276 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:51:53,277 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:51:53,277 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 98 states. [2018-07-23 13:51:53,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:53,377 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2018-07-23 13:51:53,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:51:53,377 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 97 [2018-07-23 13:51:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:53,378 INFO L225 Difference]: With dead ends: 100 [2018-07-23 13:51:53,378 INFO L226 Difference]: Without dead ends: 99 [2018-07-23 13:51:53,379 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:51:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-23 13:51:53,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-07-23 13:51:53,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-07-23 13:51:53,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2018-07-23 13:51:53,381 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 97 [2018-07-23 13:51:53,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:53,381 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2018-07-23 13:51:53,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:51:53,381 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2018-07-23 13:51:53,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-07-23 13:51:53,382 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:53,382 INFO L357 BasicCegarLoop]: trace histogram [96, 1, 1] [2018-07-23 13:51:53,382 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:53,382 INFO L82 PathProgramCache]: Analyzing trace with hash -278814253, now seen corresponding path program 96 times [2018-07-23 13:51:53,383 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,697 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 13:51:53,697 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:51:53,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,697 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 13:51:53,698 INFO L185 omatonBuilderFactory]: Interpolants [24832#(<= main_x 3), 24833#(<= main_x 4), 24834#(<= main_x 5), 24835#(<= main_x 6), 24836#(<= main_x 7), 24837#(<= main_x 8), 24838#(<= main_x 9), 24839#(<= main_x 10), 24840#(<= main_x 11), 24841#(<= main_x 12), 24842#(<= main_x 13), 24843#(<= main_x 14), 24844#(<= main_x 15), 24845#(<= main_x 16), 24846#(<= main_x 17), 24847#(<= main_x 18), 24848#(<= main_x 19), 24849#(<= main_x 20), 24850#(<= main_x 21), 24851#(<= main_x 22), 24852#(<= main_x 23), 24853#(<= main_x 24), 24854#(<= main_x 25), 24855#(<= main_x 26), 24856#(<= main_x 27), 24857#(<= main_x 28), 24858#(<= main_x 29), 24859#(<= main_x 30), 24860#(<= main_x 31), 24861#(<= main_x 32), 24862#(<= main_x 33), 24863#(<= main_x 34), 24864#(<= main_x 35), 24865#(<= main_x 36), 24866#(<= main_x 37), 24867#(<= main_x 38), 24868#(<= main_x 39), 24869#(<= main_x 40), 24870#(<= main_x 41), 24871#(<= main_x 42), 24872#(<= main_x 43), 24873#(<= main_x 44), 24874#(<= main_x 45), 24875#(<= main_x 46), 24876#(<= main_x 47), 24877#(<= main_x 48), 24878#(<= main_x 49), 24879#(<= main_x 50), 24880#(<= main_x 51), 24881#(<= main_x 52), 24882#(<= main_x 53), 24883#(<= main_x 54), 24884#(<= main_x 55), 24885#(<= main_x 56), 24886#(<= main_x 57), 24887#(<= main_x 58), 24888#(<= main_x 59), 24889#(<= main_x 60), 24890#(<= main_x 61), 24891#(<= main_x 62), 24892#(<= main_x 63), 24893#(<= main_x 64), 24894#(<= main_x 65), 24895#(<= main_x 66), 24896#(<= main_x 67), 24897#(<= main_x 68), 24898#(<= main_x 69), 24899#(<= main_x 70), 24900#(<= main_x 71), 24901#(<= main_x 72), 24902#(<= main_x 73), 24903#(<= main_x 74), 24904#(<= main_x 75), 24905#(<= main_x 76), 24906#(<= main_x 77), 24907#(<= main_x 78), 24908#(<= main_x 79), 24909#(<= main_x 80), 24910#(<= main_x 81), 24911#(<= main_x 82), 24912#(<= main_x 83), 24913#(<= main_x 84), 24914#(<= main_x 85), 24915#(<= main_x 86), 24916#(<= main_x 87), 24917#(<= main_x 88), 24918#(<= main_x 89), 24919#(<= main_x 90), 24920#(<= main_x 91), 24921#(<= main_x 92), 24922#(<= main_x 93), 24923#(<= main_x 94), 24924#(<= main_x 95), 24925#(<= main_x 96), 24827#true, 24828#false, 24829#(<= main_x 0), 24830#(<= main_x 1), 24831#(<= main_x 2)] [2018-07-23 13:51:53,698 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 13:51:53,698 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:51:53,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:51:53,699 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:51:53,699 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 99 states. [2018-07-23 13:51:53,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:53,801 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:51:53,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:51:53,801 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 98 [2018-07-23 13:51:53,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:53,802 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:51:53,802 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:51:53,803 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:51:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:51:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:51:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:51:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:51:53,805 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 98 [2018-07-23 13:51:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:53,806 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:51:53,806 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:51:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:51:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:51:53,806 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:53,807 INFO L357 BasicCegarLoop]: trace histogram [97, 1, 1] [2018-07-23 13:51:53,807 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:53,807 INFO L82 PathProgramCache]: Analyzing trace with hash -53307016, now seen corresponding path program 97 times [2018-07-23 13:51:53,807 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:54,130 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 13:51:54,130 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:54,130 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:51:54,130 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:54,131 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 13:51:54,131 INFO L185 omatonBuilderFactory]: Interpolants [25344#(<= main_x 14), 25345#(<= main_x 15), 25346#(<= main_x 16), 25347#(<= main_x 17), 25348#(<= main_x 18), 25349#(<= main_x 19), 25350#(<= main_x 20), 25351#(<= main_x 21), 25352#(<= main_x 22), 25353#(<= main_x 23), 25354#(<= main_x 24), 25355#(<= main_x 25), 25356#(<= main_x 26), 25357#(<= main_x 27), 25358#(<= main_x 28), 25359#(<= main_x 29), 25360#(<= main_x 30), 25361#(<= main_x 31), 25362#(<= main_x 32), 25363#(<= main_x 33), 25364#(<= main_x 34), 25365#(<= main_x 35), 25366#(<= main_x 36), 25367#(<= main_x 37), 25368#(<= main_x 38), 25369#(<= main_x 39), 25370#(<= main_x 40), 25371#(<= main_x 41), 25372#(<= main_x 42), 25373#(<= main_x 43), 25374#(<= main_x 44), 25375#(<= main_x 45), 25376#(<= main_x 46), 25377#(<= main_x 47), 25378#(<= main_x 48), 25379#(<= main_x 49), 25380#(<= main_x 50), 25381#(<= main_x 51), 25382#(<= main_x 52), 25383#(<= main_x 53), 25384#(<= main_x 54), 25385#(<= main_x 55), 25386#(<= main_x 56), 25387#(<= main_x 57), 25388#(<= main_x 58), 25389#(<= main_x 59), 25390#(<= main_x 60), 25391#(<= main_x 61), 25392#(<= main_x 62), 25393#(<= main_x 63), 25394#(<= main_x 64), 25395#(<= main_x 65), 25396#(<= main_x 66), 25397#(<= main_x 67), 25398#(<= main_x 68), 25399#(<= main_x 69), 25400#(<= main_x 70), 25401#(<= main_x 71), 25402#(<= main_x 72), 25403#(<= main_x 73), 25404#(<= main_x 74), 25405#(<= main_x 75), 25406#(<= main_x 76), 25407#(<= main_x 77), 25408#(<= main_x 78), 25409#(<= main_x 79), 25410#(<= main_x 80), 25411#(<= main_x 81), 25412#(<= main_x 82), 25413#(<= main_x 83), 25414#(<= main_x 84), 25415#(<= main_x 85), 25416#(<= main_x 86), 25417#(<= main_x 87), 25418#(<= main_x 88), 25419#(<= main_x 89), 25420#(<= main_x 90), 25421#(<= main_x 91), 25422#(<= main_x 92), 25423#(<= main_x 93), 25424#(<= main_x 94), 25425#(<= main_x 95), 25426#(<= main_x 96), 25427#(<= main_x 97), 25328#true, 25329#false, 25330#(<= main_x 0), 25331#(<= main_x 1), 25332#(<= main_x 2), 25333#(<= main_x 3), 25334#(<= main_x 4), 25335#(<= main_x 5), 25336#(<= main_x 6), 25337#(<= main_x 7), 25338#(<= main_x 8), 25339#(<= main_x 9), 25340#(<= main_x 10), 25341#(<= main_x 11), 25342#(<= main_x 12), 25343#(<= main_x 13)] [2018-07-23 13:51:54,131 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 13:51:54,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:51:54,132 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:51:54,133 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:51:54,133 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 100 states. [2018-07-23 13:51:54,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,226 INFO L93 Difference]: Finished difference Result 102 states and 102 transitions. [2018-07-23 13:51:54,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:51:54,226 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 99 [2018-07-23 13:51:54,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,227 INFO L225 Difference]: With dead ends: 102 [2018-07-23 13:51:54,227 INFO L226 Difference]: Without dead ends: 101 [2018-07-23 13:51:54,228 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:51:54,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-07-23 13:51:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2018-07-23 13:51:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-07-23 13:51:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2018-07-23 13:51:54,231 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 99 [2018-07-23 13:51:54,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,231 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2018-07-23 13:51:54,231 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:51:54,231 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2018-07-23 13:51:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-23 13:51:54,232 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,232 INFO L357 BasicCegarLoop]: trace histogram [98, 1, 1] [2018-07-23 13:51:54,232 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1652517261, now seen corresponding path program 98 times [2018-07-23 13:51:54,233 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:54,587 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 13:51:54,587 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:54,587 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:51:54,587 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:54,588 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 13:51:54,588 INFO L185 omatonBuilderFactory]: Interpolants [25856#(<= main_x 20), 25857#(<= main_x 21), 25858#(<= main_x 22), 25859#(<= main_x 23), 25860#(<= main_x 24), 25861#(<= main_x 25), 25862#(<= main_x 26), 25863#(<= main_x 27), 25864#(<= main_x 28), 25865#(<= main_x 29), 25866#(<= main_x 30), 25867#(<= main_x 31), 25868#(<= main_x 32), 25869#(<= main_x 33), 25870#(<= main_x 34), 25871#(<= main_x 35), 25872#(<= main_x 36), 25873#(<= main_x 37), 25874#(<= main_x 38), 25875#(<= main_x 39), 25876#(<= main_x 40), 25877#(<= main_x 41), 25878#(<= main_x 42), 25879#(<= main_x 43), 25880#(<= main_x 44), 25881#(<= main_x 45), 25882#(<= main_x 46), 25883#(<= main_x 47), 25884#(<= main_x 48), 25885#(<= main_x 49), 25886#(<= main_x 50), 25887#(<= main_x 51), 25888#(<= main_x 52), 25889#(<= main_x 53), 25890#(<= main_x 54), 25891#(<= main_x 55), 25892#(<= main_x 56), 25893#(<= main_x 57), 25894#(<= main_x 58), 25895#(<= main_x 59), 25896#(<= main_x 60), 25897#(<= main_x 61), 25898#(<= main_x 62), 25899#(<= main_x 63), 25900#(<= main_x 64), 25901#(<= main_x 65), 25902#(<= main_x 66), 25903#(<= main_x 67), 25904#(<= main_x 68), 25905#(<= main_x 69), 25906#(<= main_x 70), 25907#(<= main_x 71), 25908#(<= main_x 72), 25909#(<= main_x 73), 25910#(<= main_x 74), 25911#(<= main_x 75), 25912#(<= main_x 76), 25913#(<= main_x 77), 25914#(<= main_x 78), 25915#(<= main_x 79), 25916#(<= main_x 80), 25917#(<= main_x 81), 25918#(<= main_x 82), 25919#(<= main_x 83), 25920#(<= main_x 84), 25921#(<= main_x 85), 25922#(<= main_x 86), 25923#(<= main_x 87), 25924#(<= main_x 88), 25925#(<= main_x 89), 25926#(<= main_x 90), 25927#(<= main_x 91), 25928#(<= main_x 92), 25929#(<= main_x 93), 25930#(<= main_x 94), 25931#(<= main_x 95), 25932#(<= main_x 96), 25933#(<= main_x 97), 25934#(<= main_x 98), 25834#true, 25835#false, 25836#(<= main_x 0), 25837#(<= main_x 1), 25838#(<= main_x 2), 25839#(<= main_x 3), 25840#(<= main_x 4), 25841#(<= main_x 5), 25842#(<= main_x 6), 25843#(<= main_x 7), 25844#(<= main_x 8), 25845#(<= main_x 9), 25846#(<= main_x 10), 25847#(<= main_x 11), 25848#(<= main_x 12), 25849#(<= main_x 13), 25850#(<= main_x 14), 25851#(<= main_x 15), 25852#(<= main_x 16), 25853#(<= main_x 17), 25854#(<= main_x 18), 25855#(<= main_x 19)] [2018-07-23 13:51:54,588 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 13:51:54,588 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:51:54,589 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:51:54,589 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:51:54,590 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand 101 states. [2018-07-23 13:51:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,676 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:51:54,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:51:54,676 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 100 [2018-07-23 13:51:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,676 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:51:54,677 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:51:54,677 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:51:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:51:54,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:51:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:51:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:51:54,680 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 100 [2018-07-23 13:51:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,680 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:51:54,680 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:51:54,680 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:51:54,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:51:54,680 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,681 INFO L357 BasicCegarLoop]: trace histogram [99, 1, 1] [2018-07-23 13:51:54,681 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,681 INFO L82 PathProgramCache]: Analyzing trace with hash 311572696, now seen corresponding path program 99 times [2018-07-23 13:51:54,681 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,041 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 13:51:55,042 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,042 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:51:55,042 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,042 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 13:51:55,042 INFO L185 omatonBuilderFactory]: Interpolants [26368#(<= main_x 21), 26369#(<= main_x 22), 26370#(<= main_x 23), 26371#(<= main_x 24), 26372#(<= main_x 25), 26373#(<= main_x 26), 26374#(<= main_x 27), 26375#(<= main_x 28), 26376#(<= main_x 29), 26377#(<= main_x 30), 26378#(<= main_x 31), 26379#(<= main_x 32), 26380#(<= main_x 33), 26381#(<= main_x 34), 26382#(<= main_x 35), 26383#(<= main_x 36), 26384#(<= main_x 37), 26385#(<= main_x 38), 26386#(<= main_x 39), 26387#(<= main_x 40), 26388#(<= main_x 41), 26389#(<= main_x 42), 26390#(<= main_x 43), 26391#(<= main_x 44), 26392#(<= main_x 45), 26393#(<= main_x 46), 26394#(<= main_x 47), 26395#(<= main_x 48), 26396#(<= main_x 49), 26397#(<= main_x 50), 26398#(<= main_x 51), 26399#(<= main_x 52), 26400#(<= main_x 53), 26401#(<= main_x 54), 26402#(<= main_x 55), 26403#(<= main_x 56), 26404#(<= main_x 57), 26405#(<= main_x 58), 26406#(<= main_x 59), 26407#(<= main_x 60), 26408#(<= main_x 61), 26409#(<= main_x 62), 26410#(<= main_x 63), 26411#(<= main_x 64), 26412#(<= main_x 65), 26413#(<= main_x 66), 26414#(<= main_x 67), 26415#(<= main_x 68), 26416#(<= main_x 69), 26417#(<= main_x 70), 26418#(<= main_x 71), 26419#(<= main_x 72), 26420#(<= main_x 73), 26421#(<= main_x 74), 26422#(<= main_x 75), 26423#(<= main_x 76), 26424#(<= main_x 77), 26425#(<= main_x 78), 26426#(<= main_x 79), 26427#(<= main_x 80), 26428#(<= main_x 81), 26429#(<= main_x 82), 26430#(<= main_x 83), 26431#(<= main_x 84), 26432#(<= main_x 85), 26433#(<= main_x 86), 26434#(<= main_x 87), 26435#(<= main_x 88), 26436#(<= main_x 89), 26437#(<= main_x 90), 26438#(<= main_x 91), 26439#(<= main_x 92), 26440#(<= main_x 93), 26441#(<= main_x 94), 26442#(<= main_x 95), 26443#(<= main_x 96), 26444#(<= main_x 97), 26445#(<= main_x 98), 26446#(<= main_x 99), 26345#true, 26346#false, 26347#(<= main_x 0), 26348#(<= main_x 1), 26349#(<= main_x 2), 26350#(<= main_x 3), 26351#(<= main_x 4), 26352#(<= main_x 5), 26353#(<= main_x 6), 26354#(<= main_x 7), 26355#(<= main_x 8), 26356#(<= main_x 9), 26357#(<= main_x 10), 26358#(<= main_x 11), 26359#(<= main_x 12), 26360#(<= main_x 13), 26361#(<= main_x 14), 26362#(<= main_x 15), 26363#(<= main_x 16), 26364#(<= main_x 17), 26365#(<= main_x 18), 26366#(<= main_x 19), 26367#(<= main_x 20)] [2018-07-23 13:51:55,043 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 13:51:55,043 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:51:55,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:51:55,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:51:55,044 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 102 states. [2018-07-23 13:51:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,137 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2018-07-23 13:51:55,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:51:55,138 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 101 [2018-07-23 13:51:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,138 INFO L225 Difference]: With dead ends: 104 [2018-07-23 13:51:55,139 INFO L226 Difference]: Without dead ends: 103 [2018-07-23 13:51:55,139 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:51:55,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-07-23 13:51:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2018-07-23 13:51:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-07-23 13:51:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2018-07-23 13:51:55,143 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 101 [2018-07-23 13:51:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,143 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2018-07-23 13:51:55,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:51:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2018-07-23 13:51:55,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-07-23 13:51:55,144 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,144 INFO L357 BasicCegarLoop]: trace histogram [100, 1, 1] [2018-07-23 13:51:55,144 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1068819219, now seen corresponding path program 100 times [2018-07-23 13:51:55,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,519 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 13:51:56,520 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,520 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:51:56,520 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,520 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 13:51:56,521 INFO L185 omatonBuilderFactory]: Interpolants [26880#(and (<= main_y 17) (<= 17 main_y)), 26881#(and (<= 18 main_y) (<= main_y 18)), 26882#(and (<= main_y 19) (<= 19 main_y)), 26883#(and (<= 20 main_y) (<= main_y 20)), 26884#(and (<= 21 main_y) (<= main_y 21)), 26885#(and (<= main_y 22) (<= 22 main_y)), 26886#(and (<= 23 main_y) (<= main_y 23)), 26887#(and (<= 24 main_y) (<= main_y 24)), 26888#(and (<= main_y 25) (<= 25 main_y)), 26889#(and (<= 26 main_y) (<= main_y 26)), 26890#(and (<= main_y 27) (<= 27 main_y)), 26891#(and (<= 28 main_y) (<= main_y 28)), 26892#(and (<= 29 main_y) (<= main_y 29)), 26893#(and (<= 30 main_y) (<= main_y 30)), 26894#(and (<= 31 main_y) (<= main_y 31)), 26895#(and (<= 32 main_y) (<= main_y 32)), 26896#(and (<= main_y 33) (<= 33 main_y)), 26897#(and (<= main_y 34) (<= 34 main_y)), 26898#(and (<= 35 main_y) (<= main_y 35)), 26899#(and (<= main_y 36) (<= 36 main_y)), 26900#(and (<= 37 main_y) (<= main_y 37)), 26901#(and (<= 38 main_y) (<= main_y 38)), 26902#(and (<= 39 main_y) (<= main_y 39)), 26903#(and (<= main_y 40) (<= 40 main_y)), 26904#(and (<= main_y 41) (<= 41 main_y)), 26905#(and (<= main_y 42) (<= 42 main_y)), 26906#(and (<= main_y 43) (<= 43 main_y)), 26907#(and (<= main_y 44) (<= 44 main_y)), 26908#(and (<= 45 main_y) (<= main_y 45)), 26909#(and (<= main_y 46) (<= 46 main_y)), 26910#(and (<= 47 main_y) (<= main_y 47)), 26911#(and (<= main_y 48) (<= 48 main_y)), 26912#(and (<= main_y 49) (<= 49 main_y)), 26913#(and (<= main_y 50) (<= 50 main_y)), 26914#(and (<= 51 main_y) (<= main_y 51)), 26915#(and (<= 52 main_y) (<= main_y 52)), 26916#(and (<= main_y 53) (<= 53 main_y)), 26917#(and (<= 54 main_y) (<= main_y 54)), 26918#(and (<= 55 main_y) (<= main_y 55)), 26919#(and (<= 56 main_y) (<= main_y 56)), 26920#(and (<= 57 main_y) (<= main_y 57)), 26921#(and (<= main_y 58) (<= 58 main_y)), 26922#(and (<= 59 main_y) (<= main_y 59)), 26923#(and (<= main_y 60) (<= 60 main_y)), 26924#(and (<= 61 main_y) (<= main_y 61)), 26925#(and (<= 62 main_y) (<= main_y 62)), 26926#(and (<= 63 main_y) (<= main_y 63)), 26927#(and (<= main_y 64) (<= 64 main_y)), 26928#(and (<= main_y 65) (<= 65 main_y)), 26929#(and (<= main_y 66) (<= 66 main_y)), 26930#(and (<= 67 main_y) (<= main_y 67)), 26931#(and (<= 68 main_y) (<= main_y 68)), 26932#(and (<= 69 main_y) (<= main_y 69)), 26933#(and (<= main_y 70) (<= 70 main_y)), 26934#(and (<= 71 main_y) (<= main_y 71)), 26935#(and (<= 72 main_y) (<= main_y 72)), 26936#(and (<= main_y 73) (<= 73 main_y)), 26937#(and (<= 74 main_y) (<= main_y 74)), 26938#(and (<= main_y 75) (<= 75 main_y)), 26939#(and (<= main_y 76) (<= 76 main_y)), 26940#(and (<= 77 main_y) (<= main_y 77)), 26941#(and (<= main_y 78) (<= 78 main_y)), 26942#(and (<= main_y 79) (<= 79 main_y)), 26943#(and (<= 80 main_y) (<= main_y 80)), 26944#(and (<= main_y 81) (<= 81 main_y)), 26945#(and (<= 82 main_y) (<= main_y 82)), 26946#(and (<= main_y 83) (<= 83 main_y)), 26947#(and (<= 84 main_y) (<= main_y 84)), 26948#(and (<= 85 main_y) (<= main_y 85)), 26949#(and (<= 86 main_y) (<= main_y 86)), 26950#(and (<= 87 main_y) (<= main_y 87)), 26951#(and (<= 88 main_y) (<= main_y 88)), 26952#(and (<= main_y 89) (<= 89 main_y)), 26953#(and (<= main_y 90) (<= 90 main_y)), 26954#(and (<= 91 main_y) (<= main_y 91)), 26955#(and (<= 92 main_y) (<= main_y 92)), 26956#(and (<= main_y 93) (<= 93 main_y)), 26957#(and (<= 94 main_y) (<= main_y 94)), 26958#(and (<= main_y 95) (<= 95 main_y)), 26959#(and (<= main_y 96) (<= 96 main_y)), 26960#(and (<= 97 main_y) (<= main_y 97)), 26961#(and (<= main_y 98) (<= 98 main_y)), 26962#(and (<= main_y 99) (<= 99 main_y)), 26963#(and (<= main_y 100) (< 99 main_y)), 26861#true, 26862#false, 26863#(and (<= 0 main_y) (<= main_y 0)), 26864#(and (<= main_y 1) (<= 1 main_y)), 26865#(and (<= 2 main_y) (<= main_y 2)), 26866#(and (<= main_y 3) (<= 3 main_y)), 26867#(and (<= 4 main_y) (<= main_y 4)), 26868#(and (<= main_y 5) (<= 5 main_y)), 26869#(and (<= 6 main_y) (<= main_y 6)), 26870#(and (<= 7 main_y) (<= main_y 7)), 26871#(and (<= 8 main_y) (<= main_y 8)), 26872#(and (<= 9 main_y) (<= main_y 9)), 26873#(and (<= 10 main_y) (<= main_y 10)), 26874#(and (<= 11 main_y) (<= main_y 11)), 26875#(and (<= 12 main_y) (<= main_y 12)), 26876#(and (<= main_y 13) (<= 13 main_y)), 26877#(and (<= 14 main_y) (<= main_y 14)), 26878#(and (<= 15 main_y) (<= main_y 15)), 26879#(and (<= main_y 16) (<= 16 main_y))] [2018-07-23 13:51:56,522 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 13:51:56,522 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:51:56,522 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:51:56,523 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:51:56,523 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand 103 states. [2018-07-23 13:51:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,776 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:51:57,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:51:57,776 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 102 [2018-07-23 13:51:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,777 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:51:57,777 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:51:57,778 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=203, Invalid=10303, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:51:57,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:51:57,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:51:57,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:51:57,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:51:57,793 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 102 [2018-07-23 13:51:57,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,793 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:51:57,793 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:51:57,793 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:51:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:51:57,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,794 INFO L357 BasicCegarLoop]: trace histogram [101, 1, 1] [2018-07-23 13:51:57,794 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,794 INFO L82 PathProgramCache]: Analyzing trace with hash -1226342344, now seen corresponding path program 101 times [2018-07-23 13:51:57,794 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,686 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 13:51:58,686 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:51:58,686 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,687 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 13:51:58,687 INFO L185 omatonBuilderFactory]: Interpolants [27392#(and (<= main_x 8) (<= 8 main_x)), 27393#(and (<= 9 main_x) (<= main_x 9)), 27394#(and (<= main_x 10) (<= 10 main_x)), 27395#(and (<= 11 main_x) (<= main_x 11)), 27396#(and (<= 12 main_x) (<= main_x 12)), 27397#(and (<= 13 main_x) (<= main_x 13)), 27398#(and (<= 14 main_x) (<= main_x 14)), 27399#(and (<= 15 main_x) (<= main_x 15)), 27400#(and (<= main_x 16) (<= 16 main_x)), 27401#(and (<= 17 main_x) (<= main_x 17)), 27402#(and (<= main_x 18) (<= 18 main_x)), 27403#(and (<= main_x 19) (<= 19 main_x)), 27404#(and (<= 20 main_x) (<= main_x 20)), 27405#(and (<= 21 main_x) (<= main_x 21)), 27406#(and (<= main_x 22) (<= 22 main_x)), 27407#(and (<= 23 main_x) (<= main_x 23)), 27408#(and (<= main_x 24) (<= 24 main_x)), 27409#(and (<= main_x 25) (<= 25 main_x)), 27410#(and (<= main_x 26) (<= 26 main_x)), 27411#(and (<= main_x 27) (<= 27 main_x)), 27412#(and (<= main_x 28) (<= 28 main_x)), 27413#(and (<= main_x 29) (<= 29 main_x)), 27414#(and (<= 30 main_x) (<= main_x 30)), 27415#(and (<= 31 main_x) (<= main_x 31)), 27416#(and (<= 32 main_x) (<= main_x 32)), 27417#(and (<= main_x 33) (<= 33 main_x)), 27418#(and (<= 34 main_x) (<= main_x 34)), 27419#(and (<= main_x 35) (<= 35 main_x)), 27420#(and (<= main_x 36) (<= 36 main_x)), 27421#(and (<= 37 main_x) (<= main_x 37)), 27422#(and (<= 38 main_x) (<= main_x 38)), 27423#(and (<= 39 main_x) (<= main_x 39)), 27424#(and (<= main_x 40) (<= 40 main_x)), 27425#(and (<= 41 main_x) (<= main_x 41)), 27426#(and (<= 42 main_x) (<= main_x 42)), 27427#(and (<= 43 main_x) (<= main_x 43)), 27428#(and (<= main_x 44) (<= 44 main_x)), 27429#(and (<= 45 main_x) (<= main_x 45)), 27430#(and (<= 46 main_x) (<= main_x 46)), 27431#(and (<= 47 main_x) (<= main_x 47)), 27432#(and (<= 48 main_x) (<= main_x 48)), 27433#(and (<= main_x 49) (<= 49 main_x)), 27434#(and (<= main_x 50) (<= 50 main_x)), 27435#(and (<= main_x 51) (<= 51 main_x)), 27436#(and (<= 52 main_x) (<= main_x 52)), 27437#(and (<= main_x 53) (<= 53 main_x)), 27438#(and (<= 54 main_x) (<= main_x 54)), 27439#(and (<= 55 main_x) (<= main_x 55)), 27440#(and (<= main_x 56) (<= 56 main_x)), 27441#(and (<= main_x 57) (<= 57 main_x)), 27442#(and (<= 58 main_x) (<= main_x 58)), 27443#(and (<= 59 main_x) (<= main_x 59)), 27444#(and (<= main_x 60) (<= 60 main_x)), 27445#(and (<= main_x 61) (<= 61 main_x)), 27446#(and (<= main_x 62) (<= 62 main_x)), 27447#(and (<= 63 main_x) (<= main_x 63)), 27448#(and (<= 64 main_x) (<= main_x 64)), 27449#(and (<= main_x 65) (<= 65 main_x)), 27450#(and (<= main_x 66) (<= 66 main_x)), 27451#(and (<= 67 main_x) (<= main_x 67)), 27452#(and (<= main_x 68) (<= 68 main_x)), 27453#(and (<= 69 main_x) (<= main_x 69)), 27454#(and (<= main_x 70) (<= 70 main_x)), 27455#(and (<= 71 main_x) (<= main_x 71)), 27456#(and (<= main_x 72) (<= 72 main_x)), 27457#(and (<= main_x 73) (<= 73 main_x)), 27458#(and (<= 74 main_x) (<= main_x 74)), 27459#(and (<= main_x 75) (<= 75 main_x)), 27460#(and (<= main_x 76) (<= 76 main_x)), 27461#(and (<= 77 main_x) (<= main_x 77)), 27462#(and (<= 78 main_x) (<= main_x 78)), 27463#(and (<= 79 main_x) (<= main_x 79)), 27464#(and (<= main_x 80) (<= 80 main_x)), 27465#(and (<= 81 main_x) (<= main_x 81)), 27466#(and (<= 82 main_x) (<= main_x 82)), 27467#(and (<= 83 main_x) (<= main_x 83)), 27468#(and (<= main_x 84) (<= 84 main_x)), 27469#(and (<= 85 main_x) (<= main_x 85)), 27470#(and (<= 86 main_x) (<= main_x 86)), 27471#(and (<= 87 main_x) (<= main_x 87)), 27472#(and (<= 88 main_x) (<= main_x 88)), 27473#(and (<= 89 main_x) (<= main_x 89)), 27474#(and (<= 90 main_x) (<= main_x 90)), 27475#(and (<= main_x 91) (<= 91 main_x)), 27476#(and (<= main_x 92) (<= 92 main_x)), 27477#(and (<= 93 main_x) (<= main_x 93)), 27478#(and (<= 94 main_x) (<= main_x 94)), 27479#(and (<= 95 main_x) (<= main_x 95)), 27480#(and (<= 96 main_x) (<= main_x 96)), 27481#(and (<= main_x 97) (<= 97 main_x)), 27482#(and (<= main_x 98) (<= 98 main_x)), 27483#(and (<= 99 main_x) (<= main_x 99)), 27484#(and (<= main_x 100) (<= 100 main_x)), 27485#(or (<= (+ main_x 155) 0) (<= 101 main_x)), 27382#true, 27383#false, 27384#(and (<= main_x 0) (<= 0 main_x)), 27385#(and (<= 1 main_x) (<= main_x 1)), 27386#(and (<= 2 main_x) (<= main_x 2)), 27387#(and (<= 3 main_x) (<= main_x 3)), 27388#(and (<= main_x 4) (<= 4 main_x)), 27389#(and (<= 5 main_x) (<= main_x 5)), 27390#(and (<= 6 main_x) (<= main_x 6)), 27391#(and (<= main_x 7) (<= 7 main_x))] [2018-07-23 13:51:58,688 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 13:51:58,689 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:51:58,689 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:51:58,689 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:51:58,690 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 104 states. [2018-07-23 13:51:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,617 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2018-07-23 13:51:59,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:51:59,617 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 103 [2018-07-23 13:51:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,618 INFO L225 Difference]: With dead ends: 106 [2018-07-23 13:51:59,618 INFO L226 Difference]: Without dead ends: 105 [2018-07-23 13:51:59,619 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=205, Invalid=10507, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:51:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-07-23 13:51:59,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-07-23 13:51:59,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-07-23 13:51:59,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2018-07-23 13:51:59,627 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 103 [2018-07-23 13:51:59,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,627 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2018-07-23 13:51:59,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:51:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2018-07-23 13:51:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-23 13:51:59,628 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,628 INFO L357 BasicCegarLoop]: trace histogram [102, 1, 1] [2018-07-23 13:51:59,628 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,629 INFO L82 PathProgramCache]: Analyzing trace with hash 638093235, now seen corresponding path program 102 times [2018-07-23 13:51:59,629 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,593 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 13:52:00,594 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,594 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:52:00,594 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,594 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 13:52:00,595 INFO L185 omatonBuilderFactory]: Interpolants [27908#true, 27909#false, 27910#(and (<= main_x 0) (<= 0 main_x)), 27911#(and (<= 1 main_x) (<= main_x 1)), 27912#(and (<= 2 main_x) (<= main_x 2)), 27913#(and (<= 3 main_x) (<= main_x 3)), 27914#(and (<= main_x 4) (<= 4 main_x)), 27915#(and (<= 5 main_x) (<= main_x 5)), 27916#(and (<= 6 main_x) (<= main_x 6)), 27917#(and (<= main_x 7) (<= 7 main_x)), 27918#(and (<= main_x 8) (<= 8 main_x)), 27919#(and (<= 9 main_x) (<= main_x 9)), 27920#(and (<= main_x 10) (<= 10 main_x)), 27921#(and (<= 11 main_x) (<= main_x 11)), 27922#(and (<= 12 main_x) (<= main_x 12)), 27923#(and (<= 13 main_x) (<= main_x 13)), 27924#(and (<= 14 main_x) (<= main_x 14)), 27925#(and (<= 15 main_x) (<= main_x 15)), 27926#(and (<= main_x 16) (<= 16 main_x)), 27927#(and (<= 17 main_x) (<= main_x 17)), 27928#(and (<= main_x 18) (<= 18 main_x)), 27929#(and (<= main_x 19) (<= 19 main_x)), 27930#(and (<= 20 main_x) (<= main_x 20)), 27931#(and (<= 21 main_x) (<= main_x 21)), 27932#(and (<= main_x 22) (<= 22 main_x)), 27933#(and (<= 23 main_x) (<= main_x 23)), 27934#(and (<= main_x 24) (<= 24 main_x)), 27935#(and (<= main_x 25) (<= 25 main_x)), 27936#(and (<= main_x 26) (<= 26 main_x)), 27937#(and (<= main_x 27) (<= 27 main_x)), 27938#(and (<= main_x 28) (<= 28 main_x)), 27939#(and (<= main_x 29) (<= 29 main_x)), 27940#(and (<= 30 main_x) (<= main_x 30)), 27941#(and (<= 31 main_x) (<= main_x 31)), 27942#(and (<= 32 main_x) (<= main_x 32)), 27943#(and (<= main_x 33) (<= 33 main_x)), 27944#(and (<= 34 main_x) (<= main_x 34)), 27945#(and (<= main_x 35) (<= 35 main_x)), 27946#(and (<= main_x 36) (<= 36 main_x)), 27947#(and (<= 37 main_x) (<= main_x 37)), 27948#(and (<= 38 main_x) (<= main_x 38)), 27949#(and (<= 39 main_x) (<= main_x 39)), 27950#(and (<= main_x 40) (<= 40 main_x)), 27951#(and (<= 41 main_x) (<= main_x 41)), 27952#(and (<= 42 main_x) (<= main_x 42)), 27953#(and (<= 43 main_x) (<= main_x 43)), 27954#(and (<= main_x 44) (<= 44 main_x)), 27955#(and (<= 45 main_x) (<= main_x 45)), 27956#(and (<= 46 main_x) (<= main_x 46)), 27957#(and (<= 47 main_x) (<= main_x 47)), 27958#(and (<= 48 main_x) (<= main_x 48)), 27959#(and (<= main_x 49) (<= 49 main_x)), 27960#(and (<= main_x 50) (<= 50 main_x)), 27961#(and (<= main_x 51) (<= 51 main_x)), 27962#(and (<= 52 main_x) (<= main_x 52)), 27963#(and (<= main_x 53) (<= 53 main_x)), 27964#(and (<= 54 main_x) (<= main_x 54)), 27965#(and (<= 55 main_x) (<= main_x 55)), 27966#(and (<= main_x 56) (<= 56 main_x)), 27967#(and (<= main_x 57) (<= 57 main_x)), 27968#(and (<= 58 main_x) (<= main_x 58)), 27969#(and (<= 59 main_x) (<= main_x 59)), 27970#(and (<= main_x 60) (<= 60 main_x)), 27971#(and (<= main_x 61) (<= 61 main_x)), 27972#(and (<= main_x 62) (<= 62 main_x)), 27973#(and (<= 63 main_x) (<= main_x 63)), 27974#(and (<= 64 main_x) (<= main_x 64)), 27975#(and (<= main_x 65) (<= 65 main_x)), 27976#(and (<= main_x 66) (<= 66 main_x)), 27977#(and (<= 67 main_x) (<= main_x 67)), 27978#(and (<= main_x 68) (<= 68 main_x)), 27979#(and (<= 69 main_x) (<= main_x 69)), 27980#(and (<= main_x 70) (<= 70 main_x)), 27981#(and (<= 71 main_x) (<= main_x 71)), 27982#(and (<= main_x 72) (<= 72 main_x)), 27983#(and (<= main_x 73) (<= 73 main_x)), 27984#(and (<= 74 main_x) (<= main_x 74)), 27985#(and (<= main_x 75) (<= 75 main_x)), 27986#(and (<= main_x 76) (<= 76 main_x)), 27987#(and (<= 77 main_x) (<= main_x 77)), 27988#(and (<= 78 main_x) (<= main_x 78)), 27989#(and (<= 79 main_x) (<= main_x 79)), 27990#(and (<= main_x 80) (<= 80 main_x)), 27991#(and (<= 81 main_x) (<= main_x 81)), 27992#(and (<= 82 main_x) (<= main_x 82)), 27993#(and (<= 83 main_x) (<= main_x 83)), 27994#(and (<= main_x 84) (<= 84 main_x)), 27995#(and (<= 85 main_x) (<= main_x 85)), 27996#(and (<= 86 main_x) (<= main_x 86)), 27997#(and (<= 87 main_x) (<= main_x 87)), 27998#(and (<= 88 main_x) (<= main_x 88)), 27999#(and (<= 89 main_x) (<= main_x 89)), 28000#(and (<= 90 main_x) (<= main_x 90)), 28001#(and (<= main_x 91) (<= 91 main_x)), 28002#(and (<= main_x 92) (<= 92 main_x)), 28003#(and (<= 93 main_x) (<= main_x 93)), 28004#(and (<= 94 main_x) (<= main_x 94)), 28005#(and (<= 95 main_x) (<= main_x 95)), 28006#(and (<= 96 main_x) (<= main_x 96)), 28007#(and (<= main_x 97) (<= 97 main_x)), 28008#(and (<= main_x 98) (<= 98 main_x)), 28009#(and (<= 99 main_x) (<= main_x 99)), 28010#(and (<= main_x 100) (<= 100 main_x)), 28011#(and (<= 101 main_x) (<= main_x 101)), 28012#(or (<= (+ main_x 154) 0) (<= 102 main_x))] [2018-07-23 13:52:00,595 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 13:52:00,595 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:52:00,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:52:00,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=10713, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:00,596 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 105 states. [2018-07-23 13:52:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,599 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:52:01,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:52:01,599 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 104 [2018-07-23 13:52:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,600 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:52:01,600 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:52:01,600 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=207, Invalid=10713, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:52:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:52:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:52:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:52:01,607 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 104 [2018-07-23 13:52:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,608 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:52:01,608 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:52:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:52:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:52:01,608 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,609 INFO L357 BasicCegarLoop]: trace histogram [103, 1, 1] [2018-07-23 13:52:01,609 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1693945960, now seen corresponding path program 103 times [2018-07-23 13:52:01,609 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,442 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 13:52:02,443 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,443 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:52:02,443 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,443 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 13:52:02,444 INFO L185 omatonBuilderFactory]: Interpolants [28439#true, 28440#false, 28441#(and (<= main_x 0) (<= 0 main_x)), 28442#(and (<= 1 main_x) (<= main_x 1)), 28443#(and (<= 2 main_x) (<= main_x 2)), 28444#(and (<= 3 main_x) (<= main_x 3)), 28445#(and (<= main_x 4) (<= 4 main_x)), 28446#(and (<= 5 main_x) (<= main_x 5)), 28447#(and (<= 6 main_x) (<= main_x 6)), 28448#(and (<= main_x 7) (<= 7 main_x)), 28449#(and (<= main_x 8) (<= 8 main_x)), 28450#(and (<= 9 main_x) (<= main_x 9)), 28451#(and (<= main_x 10) (<= 10 main_x)), 28452#(and (<= 11 main_x) (<= main_x 11)), 28453#(and (<= 12 main_x) (<= main_x 12)), 28454#(and (<= 13 main_x) (<= main_x 13)), 28455#(and (<= 14 main_x) (<= main_x 14)), 28456#(and (<= 15 main_x) (<= main_x 15)), 28457#(and (<= main_x 16) (<= 16 main_x)), 28458#(and (<= 17 main_x) (<= main_x 17)), 28459#(and (<= main_x 18) (<= 18 main_x)), 28460#(and (<= main_x 19) (<= 19 main_x)), 28461#(and (<= 20 main_x) (<= main_x 20)), 28462#(and (<= 21 main_x) (<= main_x 21)), 28463#(and (<= main_x 22) (<= 22 main_x)), 28464#(and (<= 23 main_x) (<= main_x 23)), 28465#(and (<= main_x 24) (<= 24 main_x)), 28466#(and (<= main_x 25) (<= 25 main_x)), 28467#(and (<= main_x 26) (<= 26 main_x)), 28468#(and (<= main_x 27) (<= 27 main_x)), 28469#(and (<= main_x 28) (<= 28 main_x)), 28470#(and (<= main_x 29) (<= 29 main_x)), 28471#(and (<= 30 main_x) (<= main_x 30)), 28472#(and (<= 31 main_x) (<= main_x 31)), 28473#(and (<= 32 main_x) (<= main_x 32)), 28474#(and (<= main_x 33) (<= 33 main_x)), 28475#(and (<= 34 main_x) (<= main_x 34)), 28476#(and (<= main_x 35) (<= 35 main_x)), 28477#(and (<= main_x 36) (<= 36 main_x)), 28478#(and (<= 37 main_x) (<= main_x 37)), 28479#(and (<= 38 main_x) (<= main_x 38)), 28480#(and (<= 39 main_x) (<= main_x 39)), 28481#(and (<= main_x 40) (<= 40 main_x)), 28482#(and (<= 41 main_x) (<= main_x 41)), 28483#(and (<= 42 main_x) (<= main_x 42)), 28484#(and (<= 43 main_x) (<= main_x 43)), 28485#(and (<= main_x 44) (<= 44 main_x)), 28486#(and (<= 45 main_x) (<= main_x 45)), 28487#(and (<= 46 main_x) (<= main_x 46)), 28488#(and (<= 47 main_x) (<= main_x 47)), 28489#(and (<= 48 main_x) (<= main_x 48)), 28490#(and (<= main_x 49) (<= 49 main_x)), 28491#(and (<= main_x 50) (<= 50 main_x)), 28492#(and (<= main_x 51) (<= 51 main_x)), 28493#(and (<= 52 main_x) (<= main_x 52)), 28494#(and (<= main_x 53) (<= 53 main_x)), 28495#(and (<= 54 main_x) (<= main_x 54)), 28496#(and (<= 55 main_x) (<= main_x 55)), 28497#(and (<= main_x 56) (<= 56 main_x)), 28498#(and (<= main_x 57) (<= 57 main_x)), 28499#(and (<= 58 main_x) (<= main_x 58)), 28500#(and (<= 59 main_x) (<= main_x 59)), 28501#(and (<= main_x 60) (<= 60 main_x)), 28502#(and (<= main_x 61) (<= 61 main_x)), 28503#(and (<= main_x 62) (<= 62 main_x)), 28504#(and (<= 63 main_x) (<= main_x 63)), 28505#(and (<= 64 main_x) (<= main_x 64)), 28506#(and (<= main_x 65) (<= 65 main_x)), 28507#(and (<= main_x 66) (<= 66 main_x)), 28508#(and (<= 67 main_x) (<= main_x 67)), 28509#(and (<= main_x 68) (<= 68 main_x)), 28510#(and (<= 69 main_x) (<= main_x 69)), 28511#(and (<= main_x 70) (<= 70 main_x)), 28512#(and (<= 71 main_x) (<= main_x 71)), 28513#(and (<= main_x 72) (<= 72 main_x)), 28514#(and (<= main_x 73) (<= 73 main_x)), 28515#(and (<= 74 main_x) (<= main_x 74)), 28516#(and (<= main_x 75) (<= 75 main_x)), 28517#(and (<= main_x 76) (<= 76 main_x)), 28518#(and (<= 77 main_x) (<= main_x 77)), 28519#(and (<= 78 main_x) (<= main_x 78)), 28520#(and (<= 79 main_x) (<= main_x 79)), 28521#(and (<= main_x 80) (<= 80 main_x)), 28522#(and (<= 81 main_x) (<= main_x 81)), 28523#(and (<= 82 main_x) (<= main_x 82)), 28524#(and (<= 83 main_x) (<= main_x 83)), 28525#(and (<= main_x 84) (<= 84 main_x)), 28526#(and (<= 85 main_x) (<= main_x 85)), 28527#(and (<= 86 main_x) (<= main_x 86)), 28528#(and (<= 87 main_x) (<= main_x 87)), 28529#(and (<= 88 main_x) (<= main_x 88)), 28530#(and (<= 89 main_x) (<= main_x 89)), 28531#(and (<= 90 main_x) (<= main_x 90)), 28532#(and (<= main_x 91) (<= 91 main_x)), 28533#(and (<= main_x 92) (<= 92 main_x)), 28534#(and (<= 93 main_x) (<= main_x 93)), 28535#(and (<= 94 main_x) (<= main_x 94)), 28536#(and (<= 95 main_x) (<= main_x 95)), 28537#(and (<= 96 main_x) (<= main_x 96)), 28538#(and (<= main_x 97) (<= 97 main_x)), 28539#(and (<= main_x 98) (<= 98 main_x)), 28540#(and (<= 99 main_x) (<= main_x 99)), 28541#(and (<= main_x 100) (<= 100 main_x)), 28542#(and (<= 101 main_x) (<= main_x 101)), 28543#(and (<= main_x 102) (<= 102 main_x)), 28544#(or (<= (+ main_x 153) 0) (<= 103 main_x))] [2018-07-23 13:52:02,444 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 13:52:02,445 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:52:02,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:52:02,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=10921, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:02,446 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 106 states. [2018-07-23 13:52:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,231 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2018-07-23 13:52:03,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:52:03,231 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 105 [2018-07-23 13:52:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,232 INFO L225 Difference]: With dead ends: 108 [2018-07-23 13:52:03,232 INFO L226 Difference]: Without dead ends: 107 [2018-07-23 13:52:03,233 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=10921, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:03,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-07-23 13:52:03,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-07-23 13:52:03,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-23 13:52:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2018-07-23 13:52:03,238 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 105 [2018-07-23 13:52:03,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,239 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2018-07-23 13:52:03,239 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:52:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2018-07-23 13:52:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-23 13:52:03,239 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,240 INFO L357 BasicCegarLoop]: trace histogram [104, 1, 1] [2018-07-23 13:52:03,240 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,240 INFO L82 PathProgramCache]: Analyzing trace with hash -972716973, now seen corresponding path program 104 times [2018-07-23 13:52:03,240 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:03,940 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 13:52:03,941 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:03,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:52:03,941 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:03,941 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 13:52:03,941 INFO L185 omatonBuilderFactory]: Interpolants [28975#true, 28976#false, 28977#(and (<= main_x 0) (<= 0 main_x)), 28978#(and (<= 1 main_x) (<= main_x 1)), 28979#(and (<= 2 main_x) (<= main_x 2)), 28980#(and (<= 3 main_x) (<= main_x 3)), 28981#(and (<= main_x 4) (<= 4 main_x)), 28982#(and (<= 5 main_x) (<= main_x 5)), 28983#(and (<= 6 main_x) (<= main_x 6)), 28984#(and (<= main_x 7) (<= 7 main_x)), 28985#(and (<= main_x 8) (<= 8 main_x)), 28986#(and (<= 9 main_x) (<= main_x 9)), 28987#(and (<= main_x 10) (<= 10 main_x)), 28988#(and (<= 11 main_x) (<= main_x 11)), 28989#(and (<= 12 main_x) (<= main_x 12)), 28990#(and (<= 13 main_x) (<= main_x 13)), 28991#(and (<= 14 main_x) (<= main_x 14)), 28992#(and (<= 15 main_x) (<= main_x 15)), 28993#(and (<= main_x 16) (<= 16 main_x)), 28994#(and (<= 17 main_x) (<= main_x 17)), 28995#(and (<= main_x 18) (<= 18 main_x)), 28996#(and (<= main_x 19) (<= 19 main_x)), 28997#(and (<= 20 main_x) (<= main_x 20)), 28998#(and (<= 21 main_x) (<= main_x 21)), 28999#(and (<= main_x 22) (<= 22 main_x)), 29000#(and (<= 23 main_x) (<= main_x 23)), 29001#(and (<= main_x 24) (<= 24 main_x)), 29002#(and (<= main_x 25) (<= 25 main_x)), 29003#(and (<= main_x 26) (<= 26 main_x)), 29004#(and (<= main_x 27) (<= 27 main_x)), 29005#(and (<= main_x 28) (<= 28 main_x)), 29006#(and (<= main_x 29) (<= 29 main_x)), 29007#(and (<= 30 main_x) (<= main_x 30)), 29008#(and (<= 31 main_x) (<= main_x 31)), 29009#(and (<= 32 main_x) (<= main_x 32)), 29010#(and (<= main_x 33) (<= 33 main_x)), 29011#(and (<= 34 main_x) (<= main_x 34)), 29012#(and (<= main_x 35) (<= 35 main_x)), 29013#(and (<= main_x 36) (<= 36 main_x)), 29014#(and (<= 37 main_x) (<= main_x 37)), 29015#(and (<= 38 main_x) (<= main_x 38)), 29016#(and (<= 39 main_x) (<= main_x 39)), 29017#(and (<= main_x 40) (<= 40 main_x)), 29018#(and (<= 41 main_x) (<= main_x 41)), 29019#(and (<= 42 main_x) (<= main_x 42)), 29020#(and (<= 43 main_x) (<= main_x 43)), 29021#(and (<= main_x 44) (<= 44 main_x)), 29022#(and (<= 45 main_x) (<= main_x 45)), 29023#(and (<= 46 main_x) (<= main_x 46)), 29024#(and (<= 47 main_x) (<= main_x 47)), 29025#(and (<= 48 main_x) (<= main_x 48)), 29026#(and (<= main_x 49) (<= 49 main_x)), 29027#(and (<= main_x 50) (<= 50 main_x)), 29028#(and (<= main_x 51) (<= 51 main_x)), 29029#(and (<= 52 main_x) (<= main_x 52)), 29030#(and (<= main_x 53) (<= 53 main_x)), 29031#(and (<= 54 main_x) (<= main_x 54)), 29032#(and (<= 55 main_x) (<= main_x 55)), 29033#(and (<= main_x 56) (<= 56 main_x)), 29034#(and (<= main_x 57) (<= 57 main_x)), 29035#(and (<= 58 main_x) (<= main_x 58)), 29036#(and (<= 59 main_x) (<= main_x 59)), 29037#(and (<= main_x 60) (<= 60 main_x)), 29038#(and (<= main_x 61) (<= 61 main_x)), 29039#(and (<= main_x 62) (<= 62 main_x)), 29040#(and (<= 63 main_x) (<= main_x 63)), 29041#(and (<= 64 main_x) (<= main_x 64)), 29042#(and (<= main_x 65) (<= 65 main_x)), 29043#(and (<= main_x 66) (<= 66 main_x)), 29044#(and (<= 67 main_x) (<= main_x 67)), 29045#(and (<= main_x 68) (<= 68 main_x)), 29046#(and (<= 69 main_x) (<= main_x 69)), 29047#(and (<= main_x 70) (<= 70 main_x)), 29048#(and (<= 71 main_x) (<= main_x 71)), 29049#(and (<= main_x 72) (<= 72 main_x)), 29050#(and (<= main_x 73) (<= 73 main_x)), 29051#(and (<= 74 main_x) (<= main_x 74)), 29052#(and (<= main_x 75) (<= 75 main_x)), 29053#(and (<= main_x 76) (<= 76 main_x)), 29054#(and (<= 77 main_x) (<= main_x 77)), 29055#(and (<= 78 main_x) (<= main_x 78)), 29056#(and (<= 79 main_x) (<= main_x 79)), 29057#(and (<= main_x 80) (<= 80 main_x)), 29058#(and (<= 81 main_x) (<= main_x 81)), 29059#(and (<= 82 main_x) (<= main_x 82)), 29060#(and (<= 83 main_x) (<= main_x 83)), 29061#(and (<= main_x 84) (<= 84 main_x)), 29062#(and (<= 85 main_x) (<= main_x 85)), 29063#(and (<= 86 main_x) (<= main_x 86)), 29064#(and (<= 87 main_x) (<= main_x 87)), 29065#(and (<= 88 main_x) (<= main_x 88)), 29066#(and (<= 89 main_x) (<= main_x 89)), 29067#(and (<= 90 main_x) (<= main_x 90)), 29068#(and (<= main_x 91) (<= 91 main_x)), 29069#(and (<= main_x 92) (<= 92 main_x)), 29070#(and (<= 93 main_x) (<= main_x 93)), 29071#(and (<= 94 main_x) (<= main_x 94)), 29072#(and (<= 95 main_x) (<= main_x 95)), 29073#(and (<= 96 main_x) (<= main_x 96)), 29074#(and (<= main_x 97) (<= 97 main_x)), 29075#(and (<= main_x 98) (<= 98 main_x)), 29076#(and (<= 99 main_x) (<= main_x 99)), 29077#(and (<= main_x 100) (<= 100 main_x)), 29078#(and (<= 101 main_x) (<= main_x 101)), 29079#(and (<= main_x 102) (<= 102 main_x)), 29080#(and (<= main_x 103) (<= 103 main_x)), 29081#(or (<= (+ main_x 152) 0) (<= 104 main_x))] [2018-07-23 13:52:03,942 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 13:52:03,942 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:52:03,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:52:03,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=11131, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:03,943 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand 107 states. [2018-07-23 13:52:04,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,826 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:52:04,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:52:04,826 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 106 [2018-07-23 13:52:04,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,827 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:52:04,827 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:52:04,828 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=11131, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:04,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:52:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:52:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:52:04,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:52:04,836 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 106 [2018-07-23 13:52:04,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,836 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:52:04,836 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:52:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:52:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:52:04,837 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,837 INFO L357 BasicCegarLoop]: trace histogram [105, 1, 1] [2018-07-23 13:52:04,837 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,837 INFO L82 PathProgramCache]: Analyzing trace with hash -89454856, now seen corresponding path program 105 times [2018-07-23 13:52:04,838 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:05,511 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 13:52:05,511 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:05,512 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:52:05,512 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:05,512 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 13:52:05,512 INFO L185 omatonBuilderFactory]: Interpolants [29516#true, 29517#false, 29518#(and (<= main_x 0) (<= 0 main_x)), 29519#(and (<= 1 main_x) (<= main_x 1)), 29520#(and (<= 2 main_x) (<= main_x 2)), 29521#(and (<= 3 main_x) (<= main_x 3)), 29522#(and (<= main_x 4) (<= 4 main_x)), 29523#(and (<= 5 main_x) (<= main_x 5)), 29524#(and (<= 6 main_x) (<= main_x 6)), 29525#(and (<= main_x 7) (<= 7 main_x)), 29526#(and (<= main_x 8) (<= 8 main_x)), 29527#(and (<= 9 main_x) (<= main_x 9)), 29528#(and (<= main_x 10) (<= 10 main_x)), 29529#(and (<= 11 main_x) (<= main_x 11)), 29530#(and (<= 12 main_x) (<= main_x 12)), 29531#(and (<= 13 main_x) (<= main_x 13)), 29532#(and (<= 14 main_x) (<= main_x 14)), 29533#(and (<= 15 main_x) (<= main_x 15)), 29534#(and (<= main_x 16) (<= 16 main_x)), 29535#(and (<= 17 main_x) (<= main_x 17)), 29536#(and (<= main_x 18) (<= 18 main_x)), 29537#(and (<= main_x 19) (<= 19 main_x)), 29538#(and (<= 20 main_x) (<= main_x 20)), 29539#(and (<= 21 main_x) (<= main_x 21)), 29540#(and (<= main_x 22) (<= 22 main_x)), 29541#(and (<= 23 main_x) (<= main_x 23)), 29542#(and (<= main_x 24) (<= 24 main_x)), 29543#(and (<= main_x 25) (<= 25 main_x)), 29544#(and (<= main_x 26) (<= 26 main_x)), 29545#(and (<= main_x 27) (<= 27 main_x)), 29546#(and (<= main_x 28) (<= 28 main_x)), 29547#(and (<= main_x 29) (<= 29 main_x)), 29548#(and (<= 30 main_x) (<= main_x 30)), 29549#(and (<= 31 main_x) (<= main_x 31)), 29550#(and (<= 32 main_x) (<= main_x 32)), 29551#(and (<= main_x 33) (<= 33 main_x)), 29552#(and (<= 34 main_x) (<= main_x 34)), 29553#(and (<= main_x 35) (<= 35 main_x)), 29554#(and (<= main_x 36) (<= 36 main_x)), 29555#(and (<= 37 main_x) (<= main_x 37)), 29556#(and (<= 38 main_x) (<= main_x 38)), 29557#(and (<= 39 main_x) (<= main_x 39)), 29558#(and (<= main_x 40) (<= 40 main_x)), 29559#(and (<= 41 main_x) (<= main_x 41)), 29560#(and (<= 42 main_x) (<= main_x 42)), 29561#(and (<= 43 main_x) (<= main_x 43)), 29562#(and (<= main_x 44) (<= 44 main_x)), 29563#(and (<= 45 main_x) (<= main_x 45)), 29564#(and (<= 46 main_x) (<= main_x 46)), 29565#(and (<= 47 main_x) (<= main_x 47)), 29566#(and (<= 48 main_x) (<= main_x 48)), 29567#(and (<= main_x 49) (<= 49 main_x)), 29568#(and (<= main_x 50) (<= 50 main_x)), 29569#(and (<= main_x 51) (<= 51 main_x)), 29570#(and (<= 52 main_x) (<= main_x 52)), 29571#(and (<= main_x 53) (<= 53 main_x)), 29572#(and (<= 54 main_x) (<= main_x 54)), 29573#(and (<= 55 main_x) (<= main_x 55)), 29574#(and (<= main_x 56) (<= 56 main_x)), 29575#(and (<= main_x 57) (<= 57 main_x)), 29576#(and (<= 58 main_x) (<= main_x 58)), 29577#(and (<= 59 main_x) (<= main_x 59)), 29578#(and (<= main_x 60) (<= 60 main_x)), 29579#(and (<= main_x 61) (<= 61 main_x)), 29580#(and (<= main_x 62) (<= 62 main_x)), 29581#(and (<= 63 main_x) (<= main_x 63)), 29582#(and (<= 64 main_x) (<= main_x 64)), 29583#(and (<= main_x 65) (<= 65 main_x)), 29584#(and (<= main_x 66) (<= 66 main_x)), 29585#(and (<= 67 main_x) (<= main_x 67)), 29586#(and (<= main_x 68) (<= 68 main_x)), 29587#(and (<= 69 main_x) (<= main_x 69)), 29588#(and (<= main_x 70) (<= 70 main_x)), 29589#(and (<= 71 main_x) (<= main_x 71)), 29590#(and (<= main_x 72) (<= 72 main_x)), 29591#(and (<= main_x 73) (<= 73 main_x)), 29592#(and (<= 74 main_x) (<= main_x 74)), 29593#(and (<= main_x 75) (<= 75 main_x)), 29594#(and (<= main_x 76) (<= 76 main_x)), 29595#(and (<= 77 main_x) (<= main_x 77)), 29596#(and (<= 78 main_x) (<= main_x 78)), 29597#(and (<= 79 main_x) (<= main_x 79)), 29598#(and (<= main_x 80) (<= 80 main_x)), 29599#(and (<= 81 main_x) (<= main_x 81)), 29600#(and (<= 82 main_x) (<= main_x 82)), 29601#(and (<= 83 main_x) (<= main_x 83)), 29602#(and (<= main_x 84) (<= 84 main_x)), 29603#(and (<= 85 main_x) (<= main_x 85)), 29604#(and (<= 86 main_x) (<= main_x 86)), 29605#(and (<= 87 main_x) (<= main_x 87)), 29606#(and (<= 88 main_x) (<= main_x 88)), 29607#(and (<= 89 main_x) (<= main_x 89)), 29608#(and (<= 90 main_x) (<= main_x 90)), 29609#(and (<= main_x 91) (<= 91 main_x)), 29610#(and (<= main_x 92) (<= 92 main_x)), 29611#(and (<= 93 main_x) (<= main_x 93)), 29612#(and (<= 94 main_x) (<= main_x 94)), 29613#(and (<= 95 main_x) (<= main_x 95)), 29614#(and (<= 96 main_x) (<= main_x 96)), 29615#(and (<= main_x 97) (<= 97 main_x)), 29616#(and (<= main_x 98) (<= 98 main_x)), 29617#(and (<= 99 main_x) (<= main_x 99)), 29618#(and (<= main_x 100) (<= 100 main_x)), 29619#(and (<= 101 main_x) (<= main_x 101)), 29620#(and (<= main_x 102) (<= 102 main_x)), 29621#(and (<= main_x 103) (<= 103 main_x)), 29622#(and (<= main_x 104) (<= 104 main_x)), 29623#(or (<= (+ main_x 151) 0) (<= 105 main_x))] [2018-07-23 13:52:05,513 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 13:52:05,513 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:52:05,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:52:05,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=11343, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:05,514 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 108 states. [2018-07-23 13:52:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:06,290 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-07-23 13:52:06,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:52:06,290 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 107 [2018-07-23 13:52:06,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:06,291 INFO L225 Difference]: With dead ends: 110 [2018-07-23 13:52:06,291 INFO L226 Difference]: Without dead ends: 109 [2018-07-23 13:52:06,292 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=11343, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:06,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-07-23 13:52:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-07-23 13:52:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-07-23 13:52:06,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2018-07-23 13:52:06,299 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2018-07-23 13:52:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:06,299 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2018-07-23 13:52:06,299 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:52:06,299 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2018-07-23 13:52:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 13:52:06,300 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:06,300 INFO L357 BasicCegarLoop]: trace histogram [106, 1, 1] [2018-07-23 13:52:06,300 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:06,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1521866995, now seen corresponding path program 106 times [2018-07-23 13:52:06,300 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,898 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 13:52:06,899 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,899 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:52:06,899 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,899 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 13:52:06,899 INFO L185 omatonBuilderFactory]: Interpolants [30062#true, 30063#false, 30064#(and (<= main_x 0) (<= 0 main_x)), 30065#(and (<= 1 main_x) (<= main_x 1)), 30066#(and (<= 2 main_x) (<= main_x 2)), 30067#(and (<= 3 main_x) (<= main_x 3)), 30068#(and (<= main_x 4) (<= 4 main_x)), 30069#(and (<= 5 main_x) (<= main_x 5)), 30070#(and (<= 6 main_x) (<= main_x 6)), 30071#(and (<= main_x 7) (<= 7 main_x)), 30072#(and (<= main_x 8) (<= 8 main_x)), 30073#(and (<= 9 main_x) (<= main_x 9)), 30074#(and (<= main_x 10) (<= 10 main_x)), 30075#(and (<= 11 main_x) (<= main_x 11)), 30076#(and (<= 12 main_x) (<= main_x 12)), 30077#(and (<= 13 main_x) (<= main_x 13)), 30078#(and (<= 14 main_x) (<= main_x 14)), 30079#(and (<= 15 main_x) (<= main_x 15)), 30080#(and (<= main_x 16) (<= 16 main_x)), 30081#(and (<= 17 main_x) (<= main_x 17)), 30082#(and (<= main_x 18) (<= 18 main_x)), 30083#(and (<= main_x 19) (<= 19 main_x)), 30084#(and (<= 20 main_x) (<= main_x 20)), 30085#(and (<= 21 main_x) (<= main_x 21)), 30086#(and (<= main_x 22) (<= 22 main_x)), 30087#(and (<= 23 main_x) (<= main_x 23)), 30088#(and (<= main_x 24) (<= 24 main_x)), 30089#(and (<= main_x 25) (<= 25 main_x)), 30090#(and (<= main_x 26) (<= 26 main_x)), 30091#(and (<= main_x 27) (<= 27 main_x)), 30092#(and (<= main_x 28) (<= 28 main_x)), 30093#(and (<= main_x 29) (<= 29 main_x)), 30094#(and (<= 30 main_x) (<= main_x 30)), 30095#(and (<= 31 main_x) (<= main_x 31)), 30096#(and (<= 32 main_x) (<= main_x 32)), 30097#(and (<= main_x 33) (<= 33 main_x)), 30098#(and (<= 34 main_x) (<= main_x 34)), 30099#(and (<= main_x 35) (<= 35 main_x)), 30100#(and (<= main_x 36) (<= 36 main_x)), 30101#(and (<= 37 main_x) (<= main_x 37)), 30102#(and (<= 38 main_x) (<= main_x 38)), 30103#(and (<= 39 main_x) (<= main_x 39)), 30104#(and (<= main_x 40) (<= 40 main_x)), 30105#(and (<= 41 main_x) (<= main_x 41)), 30106#(and (<= 42 main_x) (<= main_x 42)), 30107#(and (<= 43 main_x) (<= main_x 43)), 30108#(and (<= main_x 44) (<= 44 main_x)), 30109#(and (<= 45 main_x) (<= main_x 45)), 30110#(and (<= 46 main_x) (<= main_x 46)), 30111#(and (<= 47 main_x) (<= main_x 47)), 30112#(and (<= 48 main_x) (<= main_x 48)), 30113#(and (<= main_x 49) (<= 49 main_x)), 30114#(and (<= main_x 50) (<= 50 main_x)), 30115#(and (<= main_x 51) (<= 51 main_x)), 30116#(and (<= 52 main_x) (<= main_x 52)), 30117#(and (<= main_x 53) (<= 53 main_x)), 30118#(and (<= 54 main_x) (<= main_x 54)), 30119#(and (<= 55 main_x) (<= main_x 55)), 30120#(and (<= main_x 56) (<= 56 main_x)), 30121#(and (<= main_x 57) (<= 57 main_x)), 30122#(and (<= 58 main_x) (<= main_x 58)), 30123#(and (<= 59 main_x) (<= main_x 59)), 30124#(and (<= main_x 60) (<= 60 main_x)), 30125#(and (<= main_x 61) (<= 61 main_x)), 30126#(and (<= main_x 62) (<= 62 main_x)), 30127#(and (<= 63 main_x) (<= main_x 63)), 30128#(and (<= 64 main_x) (<= main_x 64)), 30129#(and (<= main_x 65) (<= 65 main_x)), 30130#(and (<= main_x 66) (<= 66 main_x)), 30131#(and (<= 67 main_x) (<= main_x 67)), 30132#(and (<= main_x 68) (<= 68 main_x)), 30133#(and (<= 69 main_x) (<= main_x 69)), 30134#(and (<= main_x 70) (<= 70 main_x)), 30135#(and (<= 71 main_x) (<= main_x 71)), 30136#(and (<= main_x 72) (<= 72 main_x)), 30137#(and (<= main_x 73) (<= 73 main_x)), 30138#(and (<= 74 main_x) (<= main_x 74)), 30139#(and (<= main_x 75) (<= 75 main_x)), 30140#(and (<= main_x 76) (<= 76 main_x)), 30141#(and (<= 77 main_x) (<= main_x 77)), 30142#(and (<= 78 main_x) (<= main_x 78)), 30143#(and (<= 79 main_x) (<= main_x 79)), 30144#(and (<= main_x 80) (<= 80 main_x)), 30145#(and (<= 81 main_x) (<= main_x 81)), 30146#(and (<= 82 main_x) (<= main_x 82)), 30147#(and (<= 83 main_x) (<= main_x 83)), 30148#(and (<= main_x 84) (<= 84 main_x)), 30149#(and (<= 85 main_x) (<= main_x 85)), 30150#(and (<= 86 main_x) (<= main_x 86)), 30151#(and (<= 87 main_x) (<= main_x 87)), 30152#(and (<= 88 main_x) (<= main_x 88)), 30153#(and (<= 89 main_x) (<= main_x 89)), 30154#(and (<= 90 main_x) (<= main_x 90)), 30155#(and (<= main_x 91) (<= 91 main_x)), 30156#(and (<= main_x 92) (<= 92 main_x)), 30157#(and (<= 93 main_x) (<= main_x 93)), 30158#(and (<= 94 main_x) (<= main_x 94)), 30159#(and (<= 95 main_x) (<= main_x 95)), 30160#(and (<= 96 main_x) (<= main_x 96)), 30161#(and (<= main_x 97) (<= 97 main_x)), 30162#(and (<= main_x 98) (<= 98 main_x)), 30163#(and (<= 99 main_x) (<= main_x 99)), 30164#(and (<= main_x 100) (<= 100 main_x)), 30165#(and (<= 101 main_x) (<= main_x 101)), 30166#(and (<= main_x 102) (<= 102 main_x)), 30167#(and (<= main_x 103) (<= 103 main_x)), 30168#(and (<= main_x 104) (<= 104 main_x)), 30169#(and (<= main_x 105) (<= 105 main_x)), 30170#(or (<= 106 main_x) (<= (+ main_x 150) 0))] [2018-07-23 13:52:06,900 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 13:52:06,900 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:52:06,900 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:52:06,901 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=11557, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:06,901 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand 109 states. [2018-07-23 13:52:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,692 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:52:07,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:52:07,693 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 108 [2018-07-23 13:52:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,693 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:52:07,693 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:52:07,694 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=11557, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:07,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:52:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:52:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:52:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:52:07,701 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 108 [2018-07-23 13:52:07,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,702 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:52:07,702 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:52:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:52:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:52:07,702 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,702 INFO L357 BasicCegarLoop]: trace histogram [107, 1, 1] [2018-07-23 13:52:07,703 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,703 INFO L82 PathProgramCache]: Analyzing trace with hash -66763176, now seen corresponding path program 107 times [2018-07-23 13:52:07,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,507 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 13:52:08,507 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,507 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:52:08,507 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,507 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 13:52:08,508 INFO L185 omatonBuilderFactory]: Interpolants [30720#(and (<= main_x 105) (<= 105 main_x)), 30721#(and (<= 106 main_x) (<= main_x 106)), 30722#(or (<= 107 main_x) (<= (+ main_x 149) 0)), 30613#true, 30614#false, 30615#(and (<= main_x 0) (<= 0 main_x)), 30616#(and (<= 1 main_x) (<= main_x 1)), 30617#(and (<= 2 main_x) (<= main_x 2)), 30618#(and (<= 3 main_x) (<= main_x 3)), 30619#(and (<= main_x 4) (<= 4 main_x)), 30620#(and (<= 5 main_x) (<= main_x 5)), 30621#(and (<= 6 main_x) (<= main_x 6)), 30622#(and (<= main_x 7) (<= 7 main_x)), 30623#(and (<= main_x 8) (<= 8 main_x)), 30624#(and (<= 9 main_x) (<= main_x 9)), 30625#(and (<= main_x 10) (<= 10 main_x)), 30626#(and (<= 11 main_x) (<= main_x 11)), 30627#(and (<= 12 main_x) (<= main_x 12)), 30628#(and (<= 13 main_x) (<= main_x 13)), 30629#(and (<= 14 main_x) (<= main_x 14)), 30630#(and (<= 15 main_x) (<= main_x 15)), 30631#(and (<= main_x 16) (<= 16 main_x)), 30632#(and (<= 17 main_x) (<= main_x 17)), 30633#(and (<= main_x 18) (<= 18 main_x)), 30634#(and (<= main_x 19) (<= 19 main_x)), 30635#(and (<= 20 main_x) (<= main_x 20)), 30636#(and (<= 21 main_x) (<= main_x 21)), 30637#(and (<= main_x 22) (<= 22 main_x)), 30638#(and (<= 23 main_x) (<= main_x 23)), 30639#(and (<= main_x 24) (<= 24 main_x)), 30640#(and (<= main_x 25) (<= 25 main_x)), 30641#(and (<= main_x 26) (<= 26 main_x)), 30642#(and (<= main_x 27) (<= 27 main_x)), 30643#(and (<= main_x 28) (<= 28 main_x)), 30644#(and (<= main_x 29) (<= 29 main_x)), 30645#(and (<= 30 main_x) (<= main_x 30)), 30646#(and (<= 31 main_x) (<= main_x 31)), 30647#(and (<= 32 main_x) (<= main_x 32)), 30648#(and (<= main_x 33) (<= 33 main_x)), 30649#(and (<= 34 main_x) (<= main_x 34)), 30650#(and (<= main_x 35) (<= 35 main_x)), 30651#(and (<= main_x 36) (<= 36 main_x)), 30652#(and (<= 37 main_x) (<= main_x 37)), 30653#(and (<= 38 main_x) (<= main_x 38)), 30654#(and (<= 39 main_x) (<= main_x 39)), 30655#(and (<= main_x 40) (<= 40 main_x)), 30656#(and (<= 41 main_x) (<= main_x 41)), 30657#(and (<= 42 main_x) (<= main_x 42)), 30658#(and (<= 43 main_x) (<= main_x 43)), 30659#(and (<= main_x 44) (<= 44 main_x)), 30660#(and (<= 45 main_x) (<= main_x 45)), 30661#(and (<= 46 main_x) (<= main_x 46)), 30662#(and (<= 47 main_x) (<= main_x 47)), 30663#(and (<= 48 main_x) (<= main_x 48)), 30664#(and (<= main_x 49) (<= 49 main_x)), 30665#(and (<= main_x 50) (<= 50 main_x)), 30666#(and (<= main_x 51) (<= 51 main_x)), 30667#(and (<= 52 main_x) (<= main_x 52)), 30668#(and (<= main_x 53) (<= 53 main_x)), 30669#(and (<= 54 main_x) (<= main_x 54)), 30670#(and (<= 55 main_x) (<= main_x 55)), 30671#(and (<= main_x 56) (<= 56 main_x)), 30672#(and (<= main_x 57) (<= 57 main_x)), 30673#(and (<= 58 main_x) (<= main_x 58)), 30674#(and (<= 59 main_x) (<= main_x 59)), 30675#(and (<= main_x 60) (<= 60 main_x)), 30676#(and (<= main_x 61) (<= 61 main_x)), 30677#(and (<= main_x 62) (<= 62 main_x)), 30678#(and (<= 63 main_x) (<= main_x 63)), 30679#(and (<= 64 main_x) (<= main_x 64)), 30680#(and (<= main_x 65) (<= 65 main_x)), 30681#(and (<= main_x 66) (<= 66 main_x)), 30682#(and (<= 67 main_x) (<= main_x 67)), 30683#(and (<= main_x 68) (<= 68 main_x)), 30684#(and (<= 69 main_x) (<= main_x 69)), 30685#(and (<= main_x 70) (<= 70 main_x)), 30686#(and (<= 71 main_x) (<= main_x 71)), 30687#(and (<= main_x 72) (<= 72 main_x)), 30688#(and (<= main_x 73) (<= 73 main_x)), 30689#(and (<= 74 main_x) (<= main_x 74)), 30690#(and (<= main_x 75) (<= 75 main_x)), 30691#(and (<= main_x 76) (<= 76 main_x)), 30692#(and (<= 77 main_x) (<= main_x 77)), 30693#(and (<= 78 main_x) (<= main_x 78)), 30694#(and (<= 79 main_x) (<= main_x 79)), 30695#(and (<= main_x 80) (<= 80 main_x)), 30696#(and (<= 81 main_x) (<= main_x 81)), 30697#(and (<= 82 main_x) (<= main_x 82)), 30698#(and (<= 83 main_x) (<= main_x 83)), 30699#(and (<= main_x 84) (<= 84 main_x)), 30700#(and (<= 85 main_x) (<= main_x 85)), 30701#(and (<= 86 main_x) (<= main_x 86)), 30702#(and (<= 87 main_x) (<= main_x 87)), 30703#(and (<= 88 main_x) (<= main_x 88)), 30704#(and (<= 89 main_x) (<= main_x 89)), 30705#(and (<= 90 main_x) (<= main_x 90)), 30706#(and (<= main_x 91) (<= 91 main_x)), 30707#(and (<= main_x 92) (<= 92 main_x)), 30708#(and (<= 93 main_x) (<= main_x 93)), 30709#(and (<= 94 main_x) (<= main_x 94)), 30710#(and (<= 95 main_x) (<= main_x 95)), 30711#(and (<= 96 main_x) (<= main_x 96)), 30712#(and (<= main_x 97) (<= 97 main_x)), 30713#(and (<= main_x 98) (<= 98 main_x)), 30714#(and (<= 99 main_x) (<= main_x 99)), 30715#(and (<= main_x 100) (<= 100 main_x)), 30716#(and (<= 101 main_x) (<= main_x 101)), 30717#(and (<= main_x 102) (<= 102 main_x)), 30718#(and (<= main_x 103) (<= 103 main_x)), 30719#(and (<= main_x 104) (<= 104 main_x))] [2018-07-23 13:52:08,508 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 13:52:08,508 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:52:08,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:52:08,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=11773, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:08,509 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 110 states. [2018-07-23 13:52:09,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,293 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-07-23 13:52:09,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:52:09,293 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 109 [2018-07-23 13:52:09,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,294 INFO L225 Difference]: With dead ends: 112 [2018-07-23 13:52:09,294 INFO L226 Difference]: Without dead ends: 111 [2018-07-23 13:52:09,295 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=217, Invalid=11773, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-07-23 13:52:09,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2018-07-23 13:52:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-07-23 13:52:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2018-07-23 13:52:09,302 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 109 [2018-07-23 13:52:09,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,302 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2018-07-23 13:52:09,302 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:52:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2018-07-23 13:52:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-07-23 13:52:09,303 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,303 INFO L357 BasicCegarLoop]: trace histogram [108, 1, 1] [2018-07-23 13:52:09,303 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,303 INFO L82 PathProgramCache]: Analyzing trace with hash -2069658221, now seen corresponding path program 108 times [2018-07-23 13:52:09,304 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,995 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 13:52:09,995 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,996 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:52:09,996 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,996 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 13:52:09,996 INFO L185 omatonBuilderFactory]: Interpolants [31232#(and (<= main_x 61) (<= 61 main_x)), 31233#(and (<= main_x 62) (<= 62 main_x)), 31234#(and (<= 63 main_x) (<= main_x 63)), 31235#(and (<= 64 main_x) (<= main_x 64)), 31236#(and (<= main_x 65) (<= 65 main_x)), 31237#(and (<= main_x 66) (<= 66 main_x)), 31238#(and (<= 67 main_x) (<= main_x 67)), 31239#(and (<= main_x 68) (<= 68 main_x)), 31240#(and (<= 69 main_x) (<= main_x 69)), 31241#(and (<= main_x 70) (<= 70 main_x)), 31242#(and (<= 71 main_x) (<= main_x 71)), 31243#(and (<= main_x 72) (<= 72 main_x)), 31244#(and (<= main_x 73) (<= 73 main_x)), 31245#(and (<= 74 main_x) (<= main_x 74)), 31246#(and (<= main_x 75) (<= 75 main_x)), 31247#(and (<= main_x 76) (<= 76 main_x)), 31248#(and (<= 77 main_x) (<= main_x 77)), 31249#(and (<= 78 main_x) (<= main_x 78)), 31250#(and (<= 79 main_x) (<= main_x 79)), 31251#(and (<= main_x 80) (<= 80 main_x)), 31252#(and (<= 81 main_x) (<= main_x 81)), 31253#(and (<= 82 main_x) (<= main_x 82)), 31254#(and (<= 83 main_x) (<= main_x 83)), 31255#(and (<= main_x 84) (<= 84 main_x)), 31256#(and (<= 85 main_x) (<= main_x 85)), 31257#(and (<= 86 main_x) (<= main_x 86)), 31258#(and (<= 87 main_x) (<= main_x 87)), 31259#(and (<= 88 main_x) (<= main_x 88)), 31260#(and (<= 89 main_x) (<= main_x 89)), 31261#(and (<= 90 main_x) (<= main_x 90)), 31262#(and (<= main_x 91) (<= 91 main_x)), 31263#(and (<= main_x 92) (<= 92 main_x)), 31264#(and (<= 93 main_x) (<= main_x 93)), 31265#(and (<= 94 main_x) (<= main_x 94)), 31266#(and (<= 95 main_x) (<= main_x 95)), 31267#(and (<= 96 main_x) (<= main_x 96)), 31268#(and (<= main_x 97) (<= 97 main_x)), 31269#(and (<= main_x 98) (<= 98 main_x)), 31270#(and (<= 99 main_x) (<= main_x 99)), 31271#(and (<= main_x 100) (<= 100 main_x)), 31272#(and (<= 101 main_x) (<= main_x 101)), 31273#(and (<= main_x 102) (<= 102 main_x)), 31274#(and (<= main_x 103) (<= 103 main_x)), 31275#(and (<= main_x 104) (<= 104 main_x)), 31276#(and (<= main_x 105) (<= 105 main_x)), 31277#(and (<= 106 main_x) (<= main_x 106)), 31278#(and (<= main_x 107) (<= 107 main_x)), 31279#(or (<= 108 main_x) (<= (+ main_x 148) 0)), 31169#true, 31170#false, 31171#(and (<= main_x 0) (<= 0 main_x)), 31172#(and (<= 1 main_x) (<= main_x 1)), 31173#(and (<= 2 main_x) (<= main_x 2)), 31174#(and (<= 3 main_x) (<= main_x 3)), 31175#(and (<= main_x 4) (<= 4 main_x)), 31176#(and (<= 5 main_x) (<= main_x 5)), 31177#(and (<= 6 main_x) (<= main_x 6)), 31178#(and (<= main_x 7) (<= 7 main_x)), 31179#(and (<= main_x 8) (<= 8 main_x)), 31180#(and (<= 9 main_x) (<= main_x 9)), 31181#(and (<= main_x 10) (<= 10 main_x)), 31182#(and (<= 11 main_x) (<= main_x 11)), 31183#(and (<= 12 main_x) (<= main_x 12)), 31184#(and (<= 13 main_x) (<= main_x 13)), 31185#(and (<= 14 main_x) (<= main_x 14)), 31186#(and (<= 15 main_x) (<= main_x 15)), 31187#(and (<= main_x 16) (<= 16 main_x)), 31188#(and (<= 17 main_x) (<= main_x 17)), 31189#(and (<= main_x 18) (<= 18 main_x)), 31190#(and (<= main_x 19) (<= 19 main_x)), 31191#(and (<= 20 main_x) (<= main_x 20)), 31192#(and (<= 21 main_x) (<= main_x 21)), 31193#(and (<= main_x 22) (<= 22 main_x)), 31194#(and (<= 23 main_x) (<= main_x 23)), 31195#(and (<= main_x 24) (<= 24 main_x)), 31196#(and (<= main_x 25) (<= 25 main_x)), 31197#(and (<= main_x 26) (<= 26 main_x)), 31198#(and (<= main_x 27) (<= 27 main_x)), 31199#(and (<= main_x 28) (<= 28 main_x)), 31200#(and (<= main_x 29) (<= 29 main_x)), 31201#(and (<= 30 main_x) (<= main_x 30)), 31202#(and (<= 31 main_x) (<= main_x 31)), 31203#(and (<= 32 main_x) (<= main_x 32)), 31204#(and (<= main_x 33) (<= 33 main_x)), 31205#(and (<= 34 main_x) (<= main_x 34)), 31206#(and (<= main_x 35) (<= 35 main_x)), 31207#(and (<= main_x 36) (<= 36 main_x)), 31208#(and (<= 37 main_x) (<= main_x 37)), 31209#(and (<= 38 main_x) (<= main_x 38)), 31210#(and (<= 39 main_x) (<= main_x 39)), 31211#(and (<= main_x 40) (<= 40 main_x)), 31212#(and (<= 41 main_x) (<= main_x 41)), 31213#(and (<= 42 main_x) (<= main_x 42)), 31214#(and (<= 43 main_x) (<= main_x 43)), 31215#(and (<= main_x 44) (<= 44 main_x)), 31216#(and (<= 45 main_x) (<= main_x 45)), 31217#(and (<= 46 main_x) (<= main_x 46)), 31218#(and (<= 47 main_x) (<= main_x 47)), 31219#(and (<= 48 main_x) (<= main_x 48)), 31220#(and (<= main_x 49) (<= 49 main_x)), 31221#(and (<= main_x 50) (<= 50 main_x)), 31222#(and (<= main_x 51) (<= 51 main_x)), 31223#(and (<= 52 main_x) (<= main_x 52)), 31224#(and (<= main_x 53) (<= 53 main_x)), 31225#(and (<= 54 main_x) (<= main_x 54)), 31226#(and (<= 55 main_x) (<= main_x 55)), 31227#(and (<= main_x 56) (<= 56 main_x)), 31228#(and (<= main_x 57) (<= 57 main_x)), 31229#(and (<= 58 main_x) (<= main_x 58)), 31230#(and (<= 59 main_x) (<= main_x 59)), 31231#(and (<= main_x 60) (<= 60 main_x))] [2018-07-23 13:52:09,997 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 13:52:09,997 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:52:09,997 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:52:09,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=11991, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:09,998 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 111 states. [2018-07-23 13:52:10,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,825 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:52:10,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:52:10,825 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 110 [2018-07-23 13:52:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,826 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:52:10,826 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:52:10,827 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=11991, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:52:10,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:52:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:52:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:52:10,833 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 110 [2018-07-23 13:52:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,834 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:52:10,834 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:52:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:52:10,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:52:10,835 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,835 INFO L357 BasicCegarLoop]: trace histogram [109, 1, 1] [2018-07-23 13:52:10,835 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash 265104824, now seen corresponding path program 109 times [2018-07-23 13:52:10,835 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,567 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 13:52:11,568 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,568 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:52:11,568 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,568 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 13:52:11,569 INFO L185 omatonBuilderFactory]: Interpolants [31744#(and (<= 12 main_x) (<= main_x 12)), 31745#(and (<= 13 main_x) (<= main_x 13)), 31746#(and (<= 14 main_x) (<= main_x 14)), 31747#(and (<= 15 main_x) (<= main_x 15)), 31748#(and (<= main_x 16) (<= 16 main_x)), 31749#(and (<= 17 main_x) (<= main_x 17)), 31750#(and (<= main_x 18) (<= 18 main_x)), 31751#(and (<= main_x 19) (<= 19 main_x)), 31752#(and (<= 20 main_x) (<= main_x 20)), 31753#(and (<= 21 main_x) (<= main_x 21)), 31754#(and (<= main_x 22) (<= 22 main_x)), 31755#(and (<= 23 main_x) (<= main_x 23)), 31756#(and (<= main_x 24) (<= 24 main_x)), 31757#(and (<= main_x 25) (<= 25 main_x)), 31758#(and (<= main_x 26) (<= 26 main_x)), 31759#(and (<= main_x 27) (<= 27 main_x)), 31760#(and (<= main_x 28) (<= 28 main_x)), 31761#(and (<= main_x 29) (<= 29 main_x)), 31762#(and (<= 30 main_x) (<= main_x 30)), 31763#(and (<= 31 main_x) (<= main_x 31)), 31764#(and (<= 32 main_x) (<= main_x 32)), 31765#(and (<= main_x 33) (<= 33 main_x)), 31766#(and (<= 34 main_x) (<= main_x 34)), 31767#(and (<= main_x 35) (<= 35 main_x)), 31768#(and (<= main_x 36) (<= 36 main_x)), 31769#(and (<= 37 main_x) (<= main_x 37)), 31770#(and (<= 38 main_x) (<= main_x 38)), 31771#(and (<= 39 main_x) (<= main_x 39)), 31772#(and (<= main_x 40) (<= 40 main_x)), 31773#(and (<= 41 main_x) (<= main_x 41)), 31774#(and (<= 42 main_x) (<= main_x 42)), 31775#(and (<= 43 main_x) (<= main_x 43)), 31776#(and (<= main_x 44) (<= 44 main_x)), 31777#(and (<= 45 main_x) (<= main_x 45)), 31778#(and (<= 46 main_x) (<= main_x 46)), 31779#(and (<= 47 main_x) (<= main_x 47)), 31780#(and (<= 48 main_x) (<= main_x 48)), 31781#(and (<= main_x 49) (<= 49 main_x)), 31782#(and (<= main_x 50) (<= 50 main_x)), 31783#(and (<= main_x 51) (<= 51 main_x)), 31784#(and (<= 52 main_x) (<= main_x 52)), 31785#(and (<= main_x 53) (<= 53 main_x)), 31786#(and (<= 54 main_x) (<= main_x 54)), 31787#(and (<= 55 main_x) (<= main_x 55)), 31788#(and (<= main_x 56) (<= 56 main_x)), 31789#(and (<= main_x 57) (<= 57 main_x)), 31790#(and (<= 58 main_x) (<= main_x 58)), 31791#(and (<= 59 main_x) (<= main_x 59)), 31792#(and (<= main_x 60) (<= 60 main_x)), 31793#(and (<= main_x 61) (<= 61 main_x)), 31794#(and (<= main_x 62) (<= 62 main_x)), 31795#(and (<= 63 main_x) (<= main_x 63)), 31796#(and (<= 64 main_x) (<= main_x 64)), 31797#(and (<= main_x 65) (<= 65 main_x)), 31798#(and (<= main_x 66) (<= 66 main_x)), 31799#(and (<= 67 main_x) (<= main_x 67)), 31800#(and (<= main_x 68) (<= 68 main_x)), 31801#(and (<= 69 main_x) (<= main_x 69)), 31802#(and (<= main_x 70) (<= 70 main_x)), 31803#(and (<= 71 main_x) (<= main_x 71)), 31804#(and (<= main_x 72) (<= 72 main_x)), 31805#(and (<= main_x 73) (<= 73 main_x)), 31806#(and (<= 74 main_x) (<= main_x 74)), 31807#(and (<= main_x 75) (<= 75 main_x)), 31808#(and (<= main_x 76) (<= 76 main_x)), 31809#(and (<= 77 main_x) (<= main_x 77)), 31810#(and (<= 78 main_x) (<= main_x 78)), 31811#(and (<= 79 main_x) (<= main_x 79)), 31812#(and (<= main_x 80) (<= 80 main_x)), 31813#(and (<= 81 main_x) (<= main_x 81)), 31814#(and (<= 82 main_x) (<= main_x 82)), 31815#(and (<= 83 main_x) (<= main_x 83)), 31816#(and (<= main_x 84) (<= 84 main_x)), 31817#(and (<= 85 main_x) (<= main_x 85)), 31818#(and (<= 86 main_x) (<= main_x 86)), 31819#(and (<= 87 main_x) (<= main_x 87)), 31820#(and (<= 88 main_x) (<= main_x 88)), 31821#(and (<= 89 main_x) (<= main_x 89)), 31822#(and (<= 90 main_x) (<= main_x 90)), 31823#(and (<= main_x 91) (<= 91 main_x)), 31824#(and (<= main_x 92) (<= 92 main_x)), 31825#(and (<= 93 main_x) (<= main_x 93)), 31826#(and (<= 94 main_x) (<= main_x 94)), 31827#(and (<= 95 main_x) (<= main_x 95)), 31828#(and (<= 96 main_x) (<= main_x 96)), 31829#(and (<= main_x 97) (<= 97 main_x)), 31830#(and (<= main_x 98) (<= 98 main_x)), 31831#(and (<= 99 main_x) (<= main_x 99)), 31832#(and (<= main_x 100) (<= 100 main_x)), 31833#(and (<= 101 main_x) (<= main_x 101)), 31834#(and (<= main_x 102) (<= 102 main_x)), 31835#(and (<= main_x 103) (<= 103 main_x)), 31836#(and (<= main_x 104) (<= 104 main_x)), 31837#(and (<= main_x 105) (<= 105 main_x)), 31838#(and (<= 106 main_x) (<= main_x 106)), 31839#(and (<= main_x 107) (<= 107 main_x)), 31840#(and (<= 108 main_x) (<= main_x 108)), 31841#(or (<= 109 main_x) (<= (+ main_x 147) 0)), 31730#true, 31731#false, 31732#(and (<= main_x 0) (<= 0 main_x)), 31733#(and (<= 1 main_x) (<= main_x 1)), 31734#(and (<= 2 main_x) (<= main_x 2)), 31735#(and (<= 3 main_x) (<= main_x 3)), 31736#(and (<= main_x 4) (<= 4 main_x)), 31737#(and (<= 5 main_x) (<= main_x 5)), 31738#(and (<= 6 main_x) (<= main_x 6)), 31739#(and (<= main_x 7) (<= 7 main_x)), 31740#(and (<= main_x 8) (<= 8 main_x)), 31741#(and (<= 9 main_x) (<= main_x 9)), 31742#(and (<= main_x 10) (<= 10 main_x)), 31743#(and (<= 11 main_x) (<= main_x 11))] [2018-07-23 13:52:11,569 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 13:52:11,570 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:52:11,570 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:52:11,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=12211, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:11,571 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 112 states. [2018-07-23 13:52:12,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,532 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-07-23 13:52:12,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:52:12,532 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 111 [2018-07-23 13:52:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,533 INFO L225 Difference]: With dead ends: 114 [2018-07-23 13:52:12,533 INFO L226 Difference]: Without dead ends: 113 [2018-07-23 13:52:12,534 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=12211, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:12,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-07-23 13:52:12,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-07-23 13:52:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-07-23 13:52:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2018-07-23 13:52:12,543 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 111 [2018-07-23 13:52:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,544 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2018-07-23 13:52:12,544 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:52:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2018-07-23 13:52:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-23 13:52:12,545 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,545 INFO L357 BasicCegarLoop]: trace histogram [110, 1, 1] [2018-07-23 13:52:12,545 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,545 INFO L82 PathProgramCache]: Analyzing trace with hash -371684813, now seen corresponding path program 110 times [2018-07-23 13:52:12,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,236 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 13:52:13,236 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,237 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:52:13,237 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,237 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 13:52:13,237 INFO L185 omatonBuilderFactory]: Interpolants [32296#true, 32297#false, 32298#(and (<= main_x 0) (<= 0 main_x)), 32299#(and (<= 1 main_x) (<= main_x 1)), 32300#(and (<= 2 main_x) (<= main_x 2)), 32301#(and (<= 3 main_x) (<= main_x 3)), 32302#(and (<= main_x 4) (<= 4 main_x)), 32303#(and (<= 5 main_x) (<= main_x 5)), 32304#(and (<= 6 main_x) (<= main_x 6)), 32305#(and (<= main_x 7) (<= 7 main_x)), 32306#(and (<= main_x 8) (<= 8 main_x)), 32307#(and (<= 9 main_x) (<= main_x 9)), 32308#(and (<= main_x 10) (<= 10 main_x)), 32309#(and (<= 11 main_x) (<= main_x 11)), 32310#(and (<= 12 main_x) (<= main_x 12)), 32311#(and (<= 13 main_x) (<= main_x 13)), 32312#(and (<= 14 main_x) (<= main_x 14)), 32313#(and (<= 15 main_x) (<= main_x 15)), 32314#(and (<= main_x 16) (<= 16 main_x)), 32315#(and (<= 17 main_x) (<= main_x 17)), 32316#(and (<= main_x 18) (<= 18 main_x)), 32317#(and (<= main_x 19) (<= 19 main_x)), 32318#(and (<= 20 main_x) (<= main_x 20)), 32319#(and (<= 21 main_x) (<= main_x 21)), 32320#(and (<= main_x 22) (<= 22 main_x)), 32321#(and (<= 23 main_x) (<= main_x 23)), 32322#(and (<= main_x 24) (<= 24 main_x)), 32323#(and (<= main_x 25) (<= 25 main_x)), 32324#(and (<= main_x 26) (<= 26 main_x)), 32325#(and (<= main_x 27) (<= 27 main_x)), 32326#(and (<= main_x 28) (<= 28 main_x)), 32327#(and (<= main_x 29) (<= 29 main_x)), 32328#(and (<= 30 main_x) (<= main_x 30)), 32329#(and (<= 31 main_x) (<= main_x 31)), 32330#(and (<= 32 main_x) (<= main_x 32)), 32331#(and (<= main_x 33) (<= 33 main_x)), 32332#(and (<= 34 main_x) (<= main_x 34)), 32333#(and (<= main_x 35) (<= 35 main_x)), 32334#(and (<= main_x 36) (<= 36 main_x)), 32335#(and (<= 37 main_x) (<= main_x 37)), 32336#(and (<= 38 main_x) (<= main_x 38)), 32337#(and (<= 39 main_x) (<= main_x 39)), 32338#(and (<= main_x 40) (<= 40 main_x)), 32339#(and (<= 41 main_x) (<= main_x 41)), 32340#(and (<= 42 main_x) (<= main_x 42)), 32341#(and (<= 43 main_x) (<= main_x 43)), 32342#(and (<= main_x 44) (<= 44 main_x)), 32343#(and (<= 45 main_x) (<= main_x 45)), 32344#(and (<= 46 main_x) (<= main_x 46)), 32345#(and (<= 47 main_x) (<= main_x 47)), 32346#(and (<= 48 main_x) (<= main_x 48)), 32347#(and (<= main_x 49) (<= 49 main_x)), 32348#(and (<= main_x 50) (<= 50 main_x)), 32349#(and (<= main_x 51) (<= 51 main_x)), 32350#(and (<= 52 main_x) (<= main_x 52)), 32351#(and (<= main_x 53) (<= 53 main_x)), 32352#(and (<= 54 main_x) (<= main_x 54)), 32353#(and (<= 55 main_x) (<= main_x 55)), 32354#(and (<= main_x 56) (<= 56 main_x)), 32355#(and (<= main_x 57) (<= 57 main_x)), 32356#(and (<= 58 main_x) (<= main_x 58)), 32357#(and (<= 59 main_x) (<= main_x 59)), 32358#(and (<= main_x 60) (<= 60 main_x)), 32359#(and (<= main_x 61) (<= 61 main_x)), 32360#(and (<= main_x 62) (<= 62 main_x)), 32361#(and (<= 63 main_x) (<= main_x 63)), 32362#(and (<= 64 main_x) (<= main_x 64)), 32363#(and (<= main_x 65) (<= 65 main_x)), 32364#(and (<= main_x 66) (<= 66 main_x)), 32365#(and (<= 67 main_x) (<= main_x 67)), 32366#(and (<= main_x 68) (<= 68 main_x)), 32367#(and (<= 69 main_x) (<= main_x 69)), 32368#(and (<= main_x 70) (<= 70 main_x)), 32369#(and (<= 71 main_x) (<= main_x 71)), 32370#(and (<= main_x 72) (<= 72 main_x)), 32371#(and (<= main_x 73) (<= 73 main_x)), 32372#(and (<= 74 main_x) (<= main_x 74)), 32373#(and (<= main_x 75) (<= 75 main_x)), 32374#(and (<= main_x 76) (<= 76 main_x)), 32375#(and (<= 77 main_x) (<= main_x 77)), 32376#(and (<= 78 main_x) (<= main_x 78)), 32377#(and (<= 79 main_x) (<= main_x 79)), 32378#(and (<= main_x 80) (<= 80 main_x)), 32379#(and (<= 81 main_x) (<= main_x 81)), 32380#(and (<= 82 main_x) (<= main_x 82)), 32381#(and (<= 83 main_x) (<= main_x 83)), 32382#(and (<= main_x 84) (<= 84 main_x)), 32383#(and (<= 85 main_x) (<= main_x 85)), 32384#(and (<= 86 main_x) (<= main_x 86)), 32385#(and (<= 87 main_x) (<= main_x 87)), 32386#(and (<= 88 main_x) (<= main_x 88)), 32387#(and (<= 89 main_x) (<= main_x 89)), 32388#(and (<= 90 main_x) (<= main_x 90)), 32389#(and (<= main_x 91) (<= 91 main_x)), 32390#(and (<= main_x 92) (<= 92 main_x)), 32391#(and (<= 93 main_x) (<= main_x 93)), 32392#(and (<= 94 main_x) (<= main_x 94)), 32393#(and (<= 95 main_x) (<= main_x 95)), 32394#(and (<= 96 main_x) (<= main_x 96)), 32395#(and (<= main_x 97) (<= 97 main_x)), 32396#(and (<= main_x 98) (<= 98 main_x)), 32397#(and (<= 99 main_x) (<= main_x 99)), 32398#(and (<= main_x 100) (<= 100 main_x)), 32399#(and (<= 101 main_x) (<= main_x 101)), 32400#(and (<= main_x 102) (<= 102 main_x)), 32401#(and (<= main_x 103) (<= 103 main_x)), 32402#(and (<= main_x 104) (<= 104 main_x)), 32403#(and (<= main_x 105) (<= 105 main_x)), 32404#(and (<= 106 main_x) (<= main_x 106)), 32405#(and (<= main_x 107) (<= 107 main_x)), 32406#(and (<= 108 main_x) (<= main_x 108)), 32407#(and (<= 109 main_x) (<= main_x 109)), 32408#(or (<= (+ main_x 146) 0) (<= 110 main_x))] [2018-07-23 13:52:13,238 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 13:52:13,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:52:13,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:52:13,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=12433, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:13,239 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand 113 states. [2018-07-23 13:52:14,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,074 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:52:14,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:52:14,074 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 112 [2018-07-23 13:52:14,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,075 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:52:14,075 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:52:14,076 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=223, Invalid=12433, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:14,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:52:14,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:52:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:52:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:52:14,083 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 112 [2018-07-23 13:52:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,083 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:52:14,083 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:52:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:52:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:52:14,084 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,084 INFO L357 BasicCegarLoop]: trace histogram [111, 1, 1] [2018-07-23 13:52:14,084 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1362672920, now seen corresponding path program 111 times [2018-07-23 13:52:14,084 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,717 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 13:52:14,717 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,717 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:52:14,717 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,718 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 13:52:14,718 INFO L185 omatonBuilderFactory]: Interpolants [32867#true, 32868#false, 32869#(and (<= main_x 0) (<= 0 main_x)), 32870#(and (<= 1 main_x) (<= main_x 1)), 32871#(and (<= 2 main_x) (<= main_x 2)), 32872#(and (<= 3 main_x) (<= main_x 3)), 32873#(and (<= main_x 4) (<= 4 main_x)), 32874#(and (<= 5 main_x) (<= main_x 5)), 32875#(and (<= 6 main_x) (<= main_x 6)), 32876#(and (<= main_x 7) (<= 7 main_x)), 32877#(and (<= main_x 8) (<= 8 main_x)), 32878#(and (<= 9 main_x) (<= main_x 9)), 32879#(and (<= main_x 10) (<= 10 main_x)), 32880#(and (<= 11 main_x) (<= main_x 11)), 32881#(and (<= 12 main_x) (<= main_x 12)), 32882#(and (<= 13 main_x) (<= main_x 13)), 32883#(and (<= 14 main_x) (<= main_x 14)), 32884#(and (<= 15 main_x) (<= main_x 15)), 32885#(and (<= main_x 16) (<= 16 main_x)), 32886#(and (<= 17 main_x) (<= main_x 17)), 32887#(and (<= main_x 18) (<= 18 main_x)), 32888#(and (<= main_x 19) (<= 19 main_x)), 32889#(and (<= 20 main_x) (<= main_x 20)), 32890#(and (<= 21 main_x) (<= main_x 21)), 32891#(and (<= main_x 22) (<= 22 main_x)), 32892#(and (<= 23 main_x) (<= main_x 23)), 32893#(and (<= main_x 24) (<= 24 main_x)), 32894#(and (<= main_x 25) (<= 25 main_x)), 32895#(and (<= main_x 26) (<= 26 main_x)), 32896#(and (<= main_x 27) (<= 27 main_x)), 32897#(and (<= main_x 28) (<= 28 main_x)), 32898#(and (<= main_x 29) (<= 29 main_x)), 32899#(and (<= 30 main_x) (<= main_x 30)), 32900#(and (<= 31 main_x) (<= main_x 31)), 32901#(and (<= 32 main_x) (<= main_x 32)), 32902#(and (<= main_x 33) (<= 33 main_x)), 32903#(and (<= 34 main_x) (<= main_x 34)), 32904#(and (<= main_x 35) (<= 35 main_x)), 32905#(and (<= main_x 36) (<= 36 main_x)), 32906#(and (<= 37 main_x) (<= main_x 37)), 32907#(and (<= 38 main_x) (<= main_x 38)), 32908#(and (<= 39 main_x) (<= main_x 39)), 32909#(and (<= main_x 40) (<= 40 main_x)), 32910#(and (<= 41 main_x) (<= main_x 41)), 32911#(and (<= 42 main_x) (<= main_x 42)), 32912#(and (<= 43 main_x) (<= main_x 43)), 32913#(and (<= main_x 44) (<= 44 main_x)), 32914#(and (<= 45 main_x) (<= main_x 45)), 32915#(and (<= 46 main_x) (<= main_x 46)), 32916#(and (<= 47 main_x) (<= main_x 47)), 32917#(and (<= 48 main_x) (<= main_x 48)), 32918#(and (<= main_x 49) (<= 49 main_x)), 32919#(and (<= main_x 50) (<= 50 main_x)), 32920#(and (<= main_x 51) (<= 51 main_x)), 32921#(and (<= 52 main_x) (<= main_x 52)), 32922#(and (<= main_x 53) (<= 53 main_x)), 32923#(and (<= 54 main_x) (<= main_x 54)), 32924#(and (<= 55 main_x) (<= main_x 55)), 32925#(and (<= main_x 56) (<= 56 main_x)), 32926#(and (<= main_x 57) (<= 57 main_x)), 32927#(and (<= 58 main_x) (<= main_x 58)), 32928#(and (<= 59 main_x) (<= main_x 59)), 32929#(and (<= main_x 60) (<= 60 main_x)), 32930#(and (<= main_x 61) (<= 61 main_x)), 32931#(and (<= main_x 62) (<= 62 main_x)), 32932#(and (<= 63 main_x) (<= main_x 63)), 32933#(and (<= 64 main_x) (<= main_x 64)), 32934#(and (<= main_x 65) (<= 65 main_x)), 32935#(and (<= main_x 66) (<= 66 main_x)), 32936#(and (<= 67 main_x) (<= main_x 67)), 32937#(and (<= main_x 68) (<= 68 main_x)), 32938#(and (<= 69 main_x) (<= main_x 69)), 32939#(and (<= main_x 70) (<= 70 main_x)), 32940#(and (<= 71 main_x) (<= main_x 71)), 32941#(and (<= main_x 72) (<= 72 main_x)), 32942#(and (<= main_x 73) (<= 73 main_x)), 32943#(and (<= 74 main_x) (<= main_x 74)), 32944#(and (<= main_x 75) (<= 75 main_x)), 32945#(and (<= main_x 76) (<= 76 main_x)), 32946#(and (<= 77 main_x) (<= main_x 77)), 32947#(and (<= 78 main_x) (<= main_x 78)), 32948#(and (<= 79 main_x) (<= main_x 79)), 32949#(and (<= main_x 80) (<= 80 main_x)), 32950#(and (<= 81 main_x) (<= main_x 81)), 32951#(and (<= 82 main_x) (<= main_x 82)), 32952#(and (<= 83 main_x) (<= main_x 83)), 32953#(and (<= main_x 84) (<= 84 main_x)), 32954#(and (<= 85 main_x) (<= main_x 85)), 32955#(and (<= 86 main_x) (<= main_x 86)), 32956#(and (<= 87 main_x) (<= main_x 87)), 32957#(and (<= 88 main_x) (<= main_x 88)), 32958#(and (<= 89 main_x) (<= main_x 89)), 32959#(and (<= 90 main_x) (<= main_x 90)), 32960#(and (<= main_x 91) (<= 91 main_x)), 32961#(and (<= main_x 92) (<= 92 main_x)), 32962#(and (<= 93 main_x) (<= main_x 93)), 32963#(and (<= 94 main_x) (<= main_x 94)), 32964#(and (<= 95 main_x) (<= main_x 95)), 32965#(and (<= 96 main_x) (<= main_x 96)), 32966#(and (<= main_x 97) (<= 97 main_x)), 32967#(and (<= main_x 98) (<= 98 main_x)), 32968#(and (<= 99 main_x) (<= main_x 99)), 32969#(and (<= main_x 100) (<= 100 main_x)), 32970#(and (<= 101 main_x) (<= main_x 101)), 32971#(and (<= main_x 102) (<= 102 main_x)), 32972#(and (<= main_x 103) (<= 103 main_x)), 32973#(and (<= main_x 104) (<= 104 main_x)), 32974#(and (<= main_x 105) (<= 105 main_x)), 32975#(and (<= 106 main_x) (<= main_x 106)), 32976#(and (<= main_x 107) (<= 107 main_x)), 32977#(and (<= 108 main_x) (<= main_x 108)), 32978#(and (<= 109 main_x) (<= main_x 109)), 32979#(and (<= main_x 110) (<= 110 main_x)), 32980#(or (<= (+ main_x 145) 0) (<= 111 main_x))] [2018-07-23 13:52:14,719 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 13:52:14,719 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:52:14,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:52:14,720 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=12657, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:14,720 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 114 states. [2018-07-23 13:52:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,574 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-07-23 13:52:15,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:52:15,574 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 113 [2018-07-23 13:52:15,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,575 INFO L225 Difference]: With dead ends: 116 [2018-07-23 13:52:15,575 INFO L226 Difference]: Without dead ends: 115 [2018-07-23 13:52:15,576 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=12657, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:15,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-07-23 13:52:15,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-07-23 13:52:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-07-23 13:52:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2018-07-23 13:52:15,582 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 113 [2018-07-23 13:52:15,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,583 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2018-07-23 13:52:15,583 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:52:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2018-07-23 13:52:15,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-23 13:52:15,583 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,583 INFO L357 BasicCegarLoop]: trace histogram [112, 1, 1] [2018-07-23 13:52:15,583 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,584 INFO L82 PathProgramCache]: Analyzing trace with hash -706812205, now seen corresponding path program 112 times [2018-07-23 13:52:15,584 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:16,365 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 13:52:16,366 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:16,366 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:52:16,366 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:16,366 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 13:52:16,367 INFO L185 omatonBuilderFactory]: Interpolants [33536#(and (<= main_x 91) (<= 91 main_x)), 33537#(and (<= main_x 92) (<= 92 main_x)), 33538#(and (<= 93 main_x) (<= main_x 93)), 33539#(and (<= 94 main_x) (<= main_x 94)), 33540#(and (<= 95 main_x) (<= main_x 95)), 33541#(and (<= 96 main_x) (<= main_x 96)), 33542#(and (<= main_x 97) (<= 97 main_x)), 33543#(and (<= main_x 98) (<= 98 main_x)), 33544#(and (<= 99 main_x) (<= main_x 99)), 33545#(and (<= main_x 100) (<= 100 main_x)), 33546#(and (<= 101 main_x) (<= main_x 101)), 33547#(and (<= main_x 102) (<= 102 main_x)), 33548#(and (<= main_x 103) (<= 103 main_x)), 33549#(and (<= main_x 104) (<= 104 main_x)), 33550#(and (<= main_x 105) (<= 105 main_x)), 33551#(and (<= 106 main_x) (<= main_x 106)), 33552#(and (<= main_x 107) (<= 107 main_x)), 33553#(and (<= 108 main_x) (<= main_x 108)), 33554#(and (<= 109 main_x) (<= main_x 109)), 33555#(and (<= main_x 110) (<= 110 main_x)), 33556#(and (<= main_x 111) (<= 111 main_x)), 33557#(or (<= (+ main_x 144) 0) (<= 112 main_x)), 33443#true, 33444#false, 33445#(and (<= main_x 0) (<= 0 main_x)), 33446#(and (<= 1 main_x) (<= main_x 1)), 33447#(and (<= 2 main_x) (<= main_x 2)), 33448#(and (<= 3 main_x) (<= main_x 3)), 33449#(and (<= main_x 4) (<= 4 main_x)), 33450#(and (<= 5 main_x) (<= main_x 5)), 33451#(and (<= 6 main_x) (<= main_x 6)), 33452#(and (<= main_x 7) (<= 7 main_x)), 33453#(and (<= main_x 8) (<= 8 main_x)), 33454#(and (<= 9 main_x) (<= main_x 9)), 33455#(and (<= main_x 10) (<= 10 main_x)), 33456#(and (<= 11 main_x) (<= main_x 11)), 33457#(and (<= 12 main_x) (<= main_x 12)), 33458#(and (<= 13 main_x) (<= main_x 13)), 33459#(and (<= 14 main_x) (<= main_x 14)), 33460#(and (<= 15 main_x) (<= main_x 15)), 33461#(and (<= main_x 16) (<= 16 main_x)), 33462#(and (<= 17 main_x) (<= main_x 17)), 33463#(and (<= main_x 18) (<= 18 main_x)), 33464#(and (<= main_x 19) (<= 19 main_x)), 33465#(and (<= 20 main_x) (<= main_x 20)), 33466#(and (<= 21 main_x) (<= main_x 21)), 33467#(and (<= main_x 22) (<= 22 main_x)), 33468#(and (<= 23 main_x) (<= main_x 23)), 33469#(and (<= main_x 24) (<= 24 main_x)), 33470#(and (<= main_x 25) (<= 25 main_x)), 33471#(and (<= main_x 26) (<= 26 main_x)), 33472#(and (<= main_x 27) (<= 27 main_x)), 33473#(and (<= main_x 28) (<= 28 main_x)), 33474#(and (<= main_x 29) (<= 29 main_x)), 33475#(and (<= 30 main_x) (<= main_x 30)), 33476#(and (<= 31 main_x) (<= main_x 31)), 33477#(and (<= 32 main_x) (<= main_x 32)), 33478#(and (<= main_x 33) (<= 33 main_x)), 33479#(and (<= 34 main_x) (<= main_x 34)), 33480#(and (<= main_x 35) (<= 35 main_x)), 33481#(and (<= main_x 36) (<= 36 main_x)), 33482#(and (<= 37 main_x) (<= main_x 37)), 33483#(and (<= 38 main_x) (<= main_x 38)), 33484#(and (<= 39 main_x) (<= main_x 39)), 33485#(and (<= main_x 40) (<= 40 main_x)), 33486#(and (<= 41 main_x) (<= main_x 41)), 33487#(and (<= 42 main_x) (<= main_x 42)), 33488#(and (<= 43 main_x) (<= main_x 43)), 33489#(and (<= main_x 44) (<= 44 main_x)), 33490#(and (<= 45 main_x) (<= main_x 45)), 33491#(and (<= 46 main_x) (<= main_x 46)), 33492#(and (<= 47 main_x) (<= main_x 47)), 33493#(and (<= 48 main_x) (<= main_x 48)), 33494#(and (<= main_x 49) (<= 49 main_x)), 33495#(and (<= main_x 50) (<= 50 main_x)), 33496#(and (<= main_x 51) (<= 51 main_x)), 33497#(and (<= 52 main_x) (<= main_x 52)), 33498#(and (<= main_x 53) (<= 53 main_x)), 33499#(and (<= 54 main_x) (<= main_x 54)), 33500#(and (<= 55 main_x) (<= main_x 55)), 33501#(and (<= main_x 56) (<= 56 main_x)), 33502#(and (<= main_x 57) (<= 57 main_x)), 33503#(and (<= 58 main_x) (<= main_x 58)), 33504#(and (<= 59 main_x) (<= main_x 59)), 33505#(and (<= main_x 60) (<= 60 main_x)), 33506#(and (<= main_x 61) (<= 61 main_x)), 33507#(and (<= main_x 62) (<= 62 main_x)), 33508#(and (<= 63 main_x) (<= main_x 63)), 33509#(and (<= 64 main_x) (<= main_x 64)), 33510#(and (<= main_x 65) (<= 65 main_x)), 33511#(and (<= main_x 66) (<= 66 main_x)), 33512#(and (<= 67 main_x) (<= main_x 67)), 33513#(and (<= main_x 68) (<= 68 main_x)), 33514#(and (<= 69 main_x) (<= main_x 69)), 33515#(and (<= main_x 70) (<= 70 main_x)), 33516#(and (<= 71 main_x) (<= main_x 71)), 33517#(and (<= main_x 72) (<= 72 main_x)), 33518#(and (<= main_x 73) (<= 73 main_x)), 33519#(and (<= 74 main_x) (<= main_x 74)), 33520#(and (<= main_x 75) (<= 75 main_x)), 33521#(and (<= main_x 76) (<= 76 main_x)), 33522#(and (<= 77 main_x) (<= main_x 77)), 33523#(and (<= 78 main_x) (<= main_x 78)), 33524#(and (<= 79 main_x) (<= main_x 79)), 33525#(and (<= main_x 80) (<= 80 main_x)), 33526#(and (<= 81 main_x) (<= main_x 81)), 33527#(and (<= 82 main_x) (<= main_x 82)), 33528#(and (<= 83 main_x) (<= main_x 83)), 33529#(and (<= main_x 84) (<= 84 main_x)), 33530#(and (<= 85 main_x) (<= main_x 85)), 33531#(and (<= 86 main_x) (<= main_x 86)), 33532#(and (<= 87 main_x) (<= main_x 87)), 33533#(and (<= 88 main_x) (<= main_x 88)), 33534#(and (<= 89 main_x) (<= main_x 89)), 33535#(and (<= 90 main_x) (<= main_x 90))] [2018-07-23 13:52:16,367 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 13:52:16,367 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:52:16,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:52:16,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=12883, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:16,368 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand 115 states. [2018-07-23 13:52:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,217 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:52:17,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:52:17,218 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 114 [2018-07-23 13:52:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,219 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:52:17,219 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:52:17,219 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=12883, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:17,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:52:17,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:52:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:52:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:52:17,226 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 114 [2018-07-23 13:52:17,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,227 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:52:17,227 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:52:17,227 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:52:17,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:52:17,227 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,228 INFO L357 BasicCegarLoop]: trace histogram [113, 1, 1] [2018-07-23 13:52:17,228 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,228 INFO L82 PathProgramCache]: Analyzing trace with hash -436341640, now seen corresponding path program 113 times [2018-07-23 13:52:17,228 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,877 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 13:52:17,877 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,877 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:52:17,877 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,878 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 13:52:17,878 INFO L185 omatonBuilderFactory]: Interpolants [34048#(and (<= main_x 22) (<= 22 main_x)), 34049#(and (<= 23 main_x) (<= main_x 23)), 34050#(and (<= main_x 24) (<= 24 main_x)), 34051#(and (<= main_x 25) (<= 25 main_x)), 34052#(and (<= main_x 26) (<= 26 main_x)), 34053#(and (<= main_x 27) (<= 27 main_x)), 34054#(and (<= main_x 28) (<= 28 main_x)), 34055#(and (<= main_x 29) (<= 29 main_x)), 34056#(and (<= 30 main_x) (<= main_x 30)), 34057#(and (<= 31 main_x) (<= main_x 31)), 34058#(and (<= 32 main_x) (<= main_x 32)), 34059#(and (<= main_x 33) (<= 33 main_x)), 34060#(and (<= 34 main_x) (<= main_x 34)), 34061#(and (<= main_x 35) (<= 35 main_x)), 34062#(and (<= main_x 36) (<= 36 main_x)), 34063#(and (<= 37 main_x) (<= main_x 37)), 34064#(and (<= 38 main_x) (<= main_x 38)), 34065#(and (<= 39 main_x) (<= main_x 39)), 34066#(and (<= main_x 40) (<= 40 main_x)), 34067#(and (<= 41 main_x) (<= main_x 41)), 34068#(and (<= 42 main_x) (<= main_x 42)), 34069#(and (<= 43 main_x) (<= main_x 43)), 34070#(and (<= main_x 44) (<= 44 main_x)), 34071#(and (<= 45 main_x) (<= main_x 45)), 34072#(and (<= 46 main_x) (<= main_x 46)), 34073#(and (<= 47 main_x) (<= main_x 47)), 34074#(and (<= 48 main_x) (<= main_x 48)), 34075#(and (<= main_x 49) (<= 49 main_x)), 34076#(and (<= main_x 50) (<= 50 main_x)), 34077#(and (<= main_x 51) (<= 51 main_x)), 34078#(and (<= 52 main_x) (<= main_x 52)), 34079#(and (<= main_x 53) (<= 53 main_x)), 34080#(and (<= 54 main_x) (<= main_x 54)), 34081#(and (<= 55 main_x) (<= main_x 55)), 34082#(and (<= main_x 56) (<= 56 main_x)), 34083#(and (<= main_x 57) (<= 57 main_x)), 34084#(and (<= 58 main_x) (<= main_x 58)), 34085#(and (<= 59 main_x) (<= main_x 59)), 34086#(and (<= main_x 60) (<= 60 main_x)), 34087#(and (<= main_x 61) (<= 61 main_x)), 34088#(and (<= main_x 62) (<= 62 main_x)), 34089#(and (<= 63 main_x) (<= main_x 63)), 34090#(and (<= 64 main_x) (<= main_x 64)), 34091#(and (<= main_x 65) (<= 65 main_x)), 34092#(and (<= main_x 66) (<= 66 main_x)), 34093#(and (<= 67 main_x) (<= main_x 67)), 34094#(and (<= main_x 68) (<= 68 main_x)), 34095#(and (<= 69 main_x) (<= main_x 69)), 34096#(and (<= main_x 70) (<= 70 main_x)), 34097#(and (<= 71 main_x) (<= main_x 71)), 34098#(and (<= main_x 72) (<= 72 main_x)), 34099#(and (<= main_x 73) (<= 73 main_x)), 34100#(and (<= 74 main_x) (<= main_x 74)), 34101#(and (<= main_x 75) (<= 75 main_x)), 34102#(and (<= main_x 76) (<= 76 main_x)), 34103#(and (<= 77 main_x) (<= main_x 77)), 34104#(and (<= 78 main_x) (<= main_x 78)), 34105#(and (<= 79 main_x) (<= main_x 79)), 34106#(and (<= main_x 80) (<= 80 main_x)), 34107#(and (<= 81 main_x) (<= main_x 81)), 34108#(and (<= 82 main_x) (<= main_x 82)), 34109#(and (<= 83 main_x) (<= main_x 83)), 34110#(and (<= main_x 84) (<= 84 main_x)), 34111#(and (<= 85 main_x) (<= main_x 85)), 34112#(and (<= 86 main_x) (<= main_x 86)), 34113#(and (<= 87 main_x) (<= main_x 87)), 34114#(and (<= 88 main_x) (<= main_x 88)), 34115#(and (<= 89 main_x) (<= main_x 89)), 34116#(and (<= 90 main_x) (<= main_x 90)), 34117#(and (<= main_x 91) (<= 91 main_x)), 34118#(and (<= main_x 92) (<= 92 main_x)), 34119#(and (<= 93 main_x) (<= main_x 93)), 34120#(and (<= 94 main_x) (<= main_x 94)), 34121#(and (<= 95 main_x) (<= main_x 95)), 34122#(and (<= 96 main_x) (<= main_x 96)), 34123#(and (<= main_x 97) (<= 97 main_x)), 34124#(and (<= main_x 98) (<= 98 main_x)), 34125#(and (<= 99 main_x) (<= main_x 99)), 34126#(and (<= main_x 100) (<= 100 main_x)), 34127#(and (<= 101 main_x) (<= main_x 101)), 34128#(and (<= main_x 102) (<= 102 main_x)), 34129#(and (<= main_x 103) (<= 103 main_x)), 34130#(and (<= main_x 104) (<= 104 main_x)), 34131#(and (<= main_x 105) (<= 105 main_x)), 34132#(and (<= 106 main_x) (<= main_x 106)), 34133#(and (<= main_x 107) (<= 107 main_x)), 34134#(and (<= 108 main_x) (<= main_x 108)), 34135#(and (<= 109 main_x) (<= main_x 109)), 34136#(and (<= main_x 110) (<= 110 main_x)), 34137#(and (<= main_x 111) (<= 111 main_x)), 34138#(and (<= main_x 112) (<= 112 main_x)), 34139#(or (<= 113 main_x) (<= (+ main_x 143) 0)), 34024#true, 34025#false, 34026#(and (<= main_x 0) (<= 0 main_x)), 34027#(and (<= 1 main_x) (<= main_x 1)), 34028#(and (<= 2 main_x) (<= main_x 2)), 34029#(and (<= 3 main_x) (<= main_x 3)), 34030#(and (<= main_x 4) (<= 4 main_x)), 34031#(and (<= 5 main_x) (<= main_x 5)), 34032#(and (<= 6 main_x) (<= main_x 6)), 34033#(and (<= main_x 7) (<= 7 main_x)), 34034#(and (<= main_x 8) (<= 8 main_x)), 34035#(and (<= 9 main_x) (<= main_x 9)), 34036#(and (<= main_x 10) (<= 10 main_x)), 34037#(and (<= 11 main_x) (<= main_x 11)), 34038#(and (<= 12 main_x) (<= main_x 12)), 34039#(and (<= 13 main_x) (<= main_x 13)), 34040#(and (<= 14 main_x) (<= main_x 14)), 34041#(and (<= 15 main_x) (<= main_x 15)), 34042#(and (<= main_x 16) (<= 16 main_x)), 34043#(and (<= 17 main_x) (<= main_x 17)), 34044#(and (<= main_x 18) (<= 18 main_x)), 34045#(and (<= main_x 19) (<= 19 main_x)), 34046#(and (<= 20 main_x) (<= main_x 20)), 34047#(and (<= 21 main_x) (<= main_x 21))] [2018-07-23 13:52:17,878 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 13:52:17,879 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:52:17,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:52:17,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=13111, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:17,880 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 116 states. [2018-07-23 13:52:18,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,777 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-07-23 13:52:18,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:52:18,777 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 115 [2018-07-23 13:52:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,778 INFO L225 Difference]: With dead ends: 118 [2018-07-23 13:52:18,778 INFO L226 Difference]: Without dead ends: 117 [2018-07-23 13:52:18,779 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=13111, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-23 13:52:18,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-07-23 13:52:18,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-07-23 13:52:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2018-07-23 13:52:18,786 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 115 [2018-07-23 13:52:18,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,787 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2018-07-23 13:52:18,787 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:52:18,787 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2018-07-23 13:52:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-23 13:52:18,787 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,787 INFO L357 BasicCegarLoop]: trace histogram [114, 1, 1] [2018-07-23 13:52:18,788 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,788 INFO L82 PathProgramCache]: Analyzing trace with hash -641688717, now seen corresponding path program 114 times [2018-07-23 13:52:18,788 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,506 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 13:52:19,506 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,506 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:52:19,506 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,507 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 13:52:19,507 INFO L185 omatonBuilderFactory]: Interpolants [34610#true, 34611#false, 34612#(and (<= main_x 0) (<= 0 main_x)), 34613#(and (<= 1 main_x) (<= main_x 1)), 34614#(and (<= 2 main_x) (<= main_x 2)), 34615#(and (<= 3 main_x) (<= main_x 3)), 34616#(and (<= main_x 4) (<= 4 main_x)), 34617#(and (<= 5 main_x) (<= main_x 5)), 34618#(and (<= 6 main_x) (<= main_x 6)), 34619#(and (<= main_x 7) (<= 7 main_x)), 34620#(and (<= main_x 8) (<= 8 main_x)), 34621#(and (<= 9 main_x) (<= main_x 9)), 34622#(and (<= main_x 10) (<= 10 main_x)), 34623#(and (<= 11 main_x) (<= main_x 11)), 34624#(and (<= 12 main_x) (<= main_x 12)), 34625#(and (<= 13 main_x) (<= main_x 13)), 34626#(and (<= 14 main_x) (<= main_x 14)), 34627#(and (<= 15 main_x) (<= main_x 15)), 34628#(and (<= main_x 16) (<= 16 main_x)), 34629#(and (<= 17 main_x) (<= main_x 17)), 34630#(and (<= main_x 18) (<= 18 main_x)), 34631#(and (<= main_x 19) (<= 19 main_x)), 34632#(and (<= 20 main_x) (<= main_x 20)), 34633#(and (<= 21 main_x) (<= main_x 21)), 34634#(and (<= main_x 22) (<= 22 main_x)), 34635#(and (<= 23 main_x) (<= main_x 23)), 34636#(and (<= main_x 24) (<= 24 main_x)), 34637#(and (<= main_x 25) (<= 25 main_x)), 34638#(and (<= main_x 26) (<= 26 main_x)), 34639#(and (<= main_x 27) (<= 27 main_x)), 34640#(and (<= main_x 28) (<= 28 main_x)), 34641#(and (<= main_x 29) (<= 29 main_x)), 34642#(and (<= 30 main_x) (<= main_x 30)), 34643#(and (<= 31 main_x) (<= main_x 31)), 34644#(and (<= 32 main_x) (<= main_x 32)), 34645#(and (<= main_x 33) (<= 33 main_x)), 34646#(and (<= 34 main_x) (<= main_x 34)), 34647#(and (<= main_x 35) (<= 35 main_x)), 34648#(and (<= main_x 36) (<= 36 main_x)), 34649#(and (<= 37 main_x) (<= main_x 37)), 34650#(and (<= 38 main_x) (<= main_x 38)), 34651#(and (<= 39 main_x) (<= main_x 39)), 34652#(and (<= main_x 40) (<= 40 main_x)), 34653#(and (<= 41 main_x) (<= main_x 41)), 34654#(and (<= 42 main_x) (<= main_x 42)), 34655#(and (<= 43 main_x) (<= main_x 43)), 34656#(and (<= main_x 44) (<= 44 main_x)), 34657#(and (<= 45 main_x) (<= main_x 45)), 34658#(and (<= 46 main_x) (<= main_x 46)), 34659#(and (<= 47 main_x) (<= main_x 47)), 34660#(and (<= 48 main_x) (<= main_x 48)), 34661#(and (<= main_x 49) (<= 49 main_x)), 34662#(and (<= main_x 50) (<= 50 main_x)), 34663#(and (<= main_x 51) (<= 51 main_x)), 34664#(and (<= 52 main_x) (<= main_x 52)), 34665#(and (<= main_x 53) (<= 53 main_x)), 34666#(and (<= 54 main_x) (<= main_x 54)), 34667#(and (<= 55 main_x) (<= main_x 55)), 34668#(and (<= main_x 56) (<= 56 main_x)), 34669#(and (<= main_x 57) (<= 57 main_x)), 34670#(and (<= 58 main_x) (<= main_x 58)), 34671#(and (<= 59 main_x) (<= main_x 59)), 34672#(and (<= main_x 60) (<= 60 main_x)), 34673#(and (<= main_x 61) (<= 61 main_x)), 34674#(and (<= main_x 62) (<= 62 main_x)), 34675#(and (<= 63 main_x) (<= main_x 63)), 34676#(and (<= 64 main_x) (<= main_x 64)), 34677#(and (<= main_x 65) (<= 65 main_x)), 34678#(and (<= main_x 66) (<= 66 main_x)), 34679#(and (<= 67 main_x) (<= main_x 67)), 34680#(and (<= main_x 68) (<= 68 main_x)), 34681#(and (<= 69 main_x) (<= main_x 69)), 34682#(and (<= main_x 70) (<= 70 main_x)), 34683#(and (<= 71 main_x) (<= main_x 71)), 34684#(and (<= main_x 72) (<= 72 main_x)), 34685#(and (<= main_x 73) (<= 73 main_x)), 34686#(and (<= 74 main_x) (<= main_x 74)), 34687#(and (<= main_x 75) (<= 75 main_x)), 34688#(and (<= main_x 76) (<= 76 main_x)), 34689#(and (<= 77 main_x) (<= main_x 77)), 34690#(and (<= 78 main_x) (<= main_x 78)), 34691#(and (<= 79 main_x) (<= main_x 79)), 34692#(and (<= main_x 80) (<= 80 main_x)), 34693#(and (<= 81 main_x) (<= main_x 81)), 34694#(and (<= 82 main_x) (<= main_x 82)), 34695#(and (<= 83 main_x) (<= main_x 83)), 34696#(and (<= main_x 84) (<= 84 main_x)), 34697#(and (<= 85 main_x) (<= main_x 85)), 34698#(and (<= 86 main_x) (<= main_x 86)), 34699#(and (<= 87 main_x) (<= main_x 87)), 34700#(and (<= 88 main_x) (<= main_x 88)), 34701#(and (<= 89 main_x) (<= main_x 89)), 34702#(and (<= 90 main_x) (<= main_x 90)), 34703#(and (<= main_x 91) (<= 91 main_x)), 34704#(and (<= main_x 92) (<= 92 main_x)), 34705#(and (<= 93 main_x) (<= main_x 93)), 34706#(and (<= 94 main_x) (<= main_x 94)), 34707#(and (<= 95 main_x) (<= main_x 95)), 34708#(and (<= 96 main_x) (<= main_x 96)), 34709#(and (<= main_x 97) (<= 97 main_x)), 34710#(and (<= main_x 98) (<= 98 main_x)), 34711#(and (<= 99 main_x) (<= main_x 99)), 34712#(and (<= main_x 100) (<= 100 main_x)), 34713#(and (<= 101 main_x) (<= main_x 101)), 34714#(and (<= main_x 102) (<= 102 main_x)), 34715#(and (<= main_x 103) (<= 103 main_x)), 34716#(and (<= main_x 104) (<= 104 main_x)), 34717#(and (<= main_x 105) (<= 105 main_x)), 34718#(and (<= 106 main_x) (<= main_x 106)), 34719#(and (<= main_x 107) (<= 107 main_x)), 34720#(and (<= 108 main_x) (<= main_x 108)), 34721#(and (<= 109 main_x) (<= main_x 109)), 34722#(and (<= main_x 110) (<= 110 main_x)), 34723#(and (<= main_x 111) (<= 111 main_x)), 34724#(and (<= main_x 112) (<= 112 main_x)), 34725#(and (<= main_x 113) (<= 113 main_x)), 34726#(or (<= (+ main_x 142) 0) (<= 114 main_x))] [2018-07-23 13:52:19,508 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 13:52:19,508 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:52:19,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:52:19,509 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=13341, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:19,509 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand 117 states. [2018-07-23 13:52:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:20,463 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:52:20,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:52:20,463 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 116 [2018-07-23 13:52:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:20,464 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:52:20,464 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:52:20,466 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=13341, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:52:20,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:52:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:52:20,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:52:20,475 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 116 [2018-07-23 13:52:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:20,476 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:52:20,476 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:52:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:52:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:52:20,477 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:20,477 INFO L357 BasicCegarLoop]: trace histogram [115, 1, 1] [2018-07-23 13:52:20,477 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:20,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1582486488, now seen corresponding path program 115 times [2018-07-23 13:52:20,477 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,325 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 13:52:21,325 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,325 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:52:21,325 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,325 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 13:52:21,326 INFO L185 omatonBuilderFactory]: Interpolants [35201#true, 35202#false, 35203#(and (<= main_x 0) (<= 0 main_x)), 35204#(and (<= 1 main_x) (<= main_x 1)), 35205#(and (<= 2 main_x) (<= main_x 2)), 35206#(and (<= 3 main_x) (<= main_x 3)), 35207#(and (<= main_x 4) (<= 4 main_x)), 35208#(and (<= 5 main_x) (<= main_x 5)), 35209#(and (<= 6 main_x) (<= main_x 6)), 35210#(and (<= main_x 7) (<= 7 main_x)), 35211#(and (<= main_x 8) (<= 8 main_x)), 35212#(and (<= 9 main_x) (<= main_x 9)), 35213#(and (<= main_x 10) (<= 10 main_x)), 35214#(and (<= 11 main_x) (<= main_x 11)), 35215#(and (<= 12 main_x) (<= main_x 12)), 35216#(and (<= 13 main_x) (<= main_x 13)), 35217#(and (<= 14 main_x) (<= main_x 14)), 35218#(and (<= 15 main_x) (<= main_x 15)), 35219#(and (<= main_x 16) (<= 16 main_x)), 35220#(and (<= 17 main_x) (<= main_x 17)), 35221#(and (<= main_x 18) (<= 18 main_x)), 35222#(and (<= main_x 19) (<= 19 main_x)), 35223#(and (<= 20 main_x) (<= main_x 20)), 35224#(and (<= 21 main_x) (<= main_x 21)), 35225#(and (<= main_x 22) (<= 22 main_x)), 35226#(and (<= 23 main_x) (<= main_x 23)), 35227#(and (<= main_x 24) (<= 24 main_x)), 35228#(and (<= main_x 25) (<= 25 main_x)), 35229#(and (<= main_x 26) (<= 26 main_x)), 35230#(and (<= main_x 27) (<= 27 main_x)), 35231#(and (<= main_x 28) (<= 28 main_x)), 35232#(and (<= main_x 29) (<= 29 main_x)), 35233#(and (<= 30 main_x) (<= main_x 30)), 35234#(and (<= 31 main_x) (<= main_x 31)), 35235#(and (<= 32 main_x) (<= main_x 32)), 35236#(and (<= main_x 33) (<= 33 main_x)), 35237#(and (<= 34 main_x) (<= main_x 34)), 35238#(and (<= main_x 35) (<= 35 main_x)), 35239#(and (<= main_x 36) (<= 36 main_x)), 35240#(and (<= 37 main_x) (<= main_x 37)), 35241#(and (<= 38 main_x) (<= main_x 38)), 35242#(and (<= 39 main_x) (<= main_x 39)), 35243#(and (<= main_x 40) (<= 40 main_x)), 35244#(and (<= 41 main_x) (<= main_x 41)), 35245#(and (<= 42 main_x) (<= main_x 42)), 35246#(and (<= 43 main_x) (<= main_x 43)), 35247#(and (<= main_x 44) (<= 44 main_x)), 35248#(and (<= 45 main_x) (<= main_x 45)), 35249#(and (<= 46 main_x) (<= main_x 46)), 35250#(and (<= 47 main_x) (<= main_x 47)), 35251#(and (<= 48 main_x) (<= main_x 48)), 35252#(and (<= main_x 49) (<= 49 main_x)), 35253#(and (<= main_x 50) (<= 50 main_x)), 35254#(and (<= main_x 51) (<= 51 main_x)), 35255#(and (<= 52 main_x) (<= main_x 52)), 35256#(and (<= main_x 53) (<= 53 main_x)), 35257#(and (<= 54 main_x) (<= main_x 54)), 35258#(and (<= 55 main_x) (<= main_x 55)), 35259#(and (<= main_x 56) (<= 56 main_x)), 35260#(and (<= main_x 57) (<= 57 main_x)), 35261#(and (<= 58 main_x) (<= main_x 58)), 35262#(and (<= 59 main_x) (<= main_x 59)), 35263#(and (<= main_x 60) (<= 60 main_x)), 35264#(and (<= main_x 61) (<= 61 main_x)), 35265#(and (<= main_x 62) (<= 62 main_x)), 35266#(and (<= 63 main_x) (<= main_x 63)), 35267#(and (<= 64 main_x) (<= main_x 64)), 35268#(and (<= main_x 65) (<= 65 main_x)), 35269#(and (<= main_x 66) (<= 66 main_x)), 35270#(and (<= 67 main_x) (<= main_x 67)), 35271#(and (<= main_x 68) (<= 68 main_x)), 35272#(and (<= 69 main_x) (<= main_x 69)), 35273#(and (<= main_x 70) (<= 70 main_x)), 35274#(and (<= 71 main_x) (<= main_x 71)), 35275#(and (<= main_x 72) (<= 72 main_x)), 35276#(and (<= main_x 73) (<= 73 main_x)), 35277#(and (<= 74 main_x) (<= main_x 74)), 35278#(and (<= main_x 75) (<= 75 main_x)), 35279#(and (<= main_x 76) (<= 76 main_x)), 35280#(and (<= 77 main_x) (<= main_x 77)), 35281#(and (<= 78 main_x) (<= main_x 78)), 35282#(and (<= 79 main_x) (<= main_x 79)), 35283#(and (<= main_x 80) (<= 80 main_x)), 35284#(and (<= 81 main_x) (<= main_x 81)), 35285#(and (<= 82 main_x) (<= main_x 82)), 35286#(and (<= 83 main_x) (<= main_x 83)), 35287#(and (<= main_x 84) (<= 84 main_x)), 35288#(and (<= 85 main_x) (<= main_x 85)), 35289#(and (<= 86 main_x) (<= main_x 86)), 35290#(and (<= 87 main_x) (<= main_x 87)), 35291#(and (<= 88 main_x) (<= main_x 88)), 35292#(and (<= 89 main_x) (<= main_x 89)), 35293#(and (<= 90 main_x) (<= main_x 90)), 35294#(and (<= main_x 91) (<= 91 main_x)), 35295#(and (<= main_x 92) (<= 92 main_x)), 35296#(and (<= 93 main_x) (<= main_x 93)), 35297#(and (<= 94 main_x) (<= main_x 94)), 35298#(and (<= 95 main_x) (<= main_x 95)), 35299#(and (<= 96 main_x) (<= main_x 96)), 35300#(and (<= main_x 97) (<= 97 main_x)), 35301#(and (<= main_x 98) (<= 98 main_x)), 35302#(and (<= 99 main_x) (<= main_x 99)), 35303#(and (<= main_x 100) (<= 100 main_x)), 35304#(and (<= 101 main_x) (<= main_x 101)), 35305#(and (<= main_x 102) (<= 102 main_x)), 35306#(and (<= main_x 103) (<= 103 main_x)), 35307#(and (<= main_x 104) (<= 104 main_x)), 35308#(and (<= main_x 105) (<= 105 main_x)), 35309#(and (<= 106 main_x) (<= main_x 106)), 35310#(and (<= main_x 107) (<= 107 main_x)), 35311#(and (<= 108 main_x) (<= main_x 108)), 35312#(and (<= 109 main_x) (<= main_x 109)), 35313#(and (<= main_x 110) (<= 110 main_x)), 35314#(and (<= main_x 111) (<= 111 main_x)), 35315#(and (<= main_x 112) (<= 112 main_x)), 35316#(and (<= main_x 113) (<= 113 main_x)), 35317#(and (<= 114 main_x) (<= main_x 114)), 35318#(or (<= 115 main_x) (<= (+ main_x 141) 0))] [2018-07-23 13:52:21,326 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 13:52:21,326 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:52:21,326 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:52:21,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=13573, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:21,327 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 118 states. [2018-07-23 13:52:22,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:22,447 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2018-07-23 13:52:22,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:52:22,447 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 117 [2018-07-23 13:52:22,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:22,448 INFO L225 Difference]: With dead ends: 120 [2018-07-23 13:52:22,448 INFO L226 Difference]: Without dead ends: 119 [2018-07-23 13:52:22,449 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=233, Invalid=13573, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:22,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-07-23 13:52:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-07-23 13:52:22,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-07-23 13:52:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2018-07-23 13:52:22,454 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 117 [2018-07-23 13:52:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:22,455 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2018-07-23 13:52:22,455 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:52:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2018-07-23 13:52:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-23 13:52:22,455 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:22,456 INFO L357 BasicCegarLoop]: trace histogram [116, 1, 1] [2018-07-23 13:52:22,456 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1812441107, now seen corresponding path program 116 times [2018-07-23 13:52:22,456 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:23,132 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 13:52:23,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:23,132 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:52:23,132 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:23,133 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 13:52:23,133 INFO L185 omatonBuilderFactory]: Interpolants [35840#(and (<= 41 main_x) (<= main_x 41)), 35841#(and (<= 42 main_x) (<= main_x 42)), 35842#(and (<= 43 main_x) (<= main_x 43)), 35843#(and (<= main_x 44) (<= 44 main_x)), 35844#(and (<= 45 main_x) (<= main_x 45)), 35845#(and (<= 46 main_x) (<= main_x 46)), 35846#(and (<= 47 main_x) (<= main_x 47)), 35847#(and (<= 48 main_x) (<= main_x 48)), 35848#(and (<= main_x 49) (<= 49 main_x)), 35849#(and (<= main_x 50) (<= 50 main_x)), 35850#(and (<= main_x 51) (<= 51 main_x)), 35851#(and (<= 52 main_x) (<= main_x 52)), 35852#(and (<= main_x 53) (<= 53 main_x)), 35853#(and (<= 54 main_x) (<= main_x 54)), 35854#(and (<= 55 main_x) (<= main_x 55)), 35855#(and (<= main_x 56) (<= 56 main_x)), 35856#(and (<= main_x 57) (<= 57 main_x)), 35857#(and (<= 58 main_x) (<= main_x 58)), 35858#(and (<= 59 main_x) (<= main_x 59)), 35859#(and (<= main_x 60) (<= 60 main_x)), 35860#(and (<= main_x 61) (<= 61 main_x)), 35861#(and (<= main_x 62) (<= 62 main_x)), 35862#(and (<= 63 main_x) (<= main_x 63)), 35863#(and (<= 64 main_x) (<= main_x 64)), 35864#(and (<= main_x 65) (<= 65 main_x)), 35865#(and (<= main_x 66) (<= 66 main_x)), 35866#(and (<= 67 main_x) (<= main_x 67)), 35867#(and (<= main_x 68) (<= 68 main_x)), 35868#(and (<= 69 main_x) (<= main_x 69)), 35869#(and (<= main_x 70) (<= 70 main_x)), 35870#(and (<= 71 main_x) (<= main_x 71)), 35871#(and (<= main_x 72) (<= 72 main_x)), 35872#(and (<= main_x 73) (<= 73 main_x)), 35873#(and (<= 74 main_x) (<= main_x 74)), 35874#(and (<= main_x 75) (<= 75 main_x)), 35875#(and (<= main_x 76) (<= 76 main_x)), 35876#(and (<= 77 main_x) (<= main_x 77)), 35877#(and (<= 78 main_x) (<= main_x 78)), 35878#(and (<= 79 main_x) (<= main_x 79)), 35879#(and (<= main_x 80) (<= 80 main_x)), 35880#(and (<= 81 main_x) (<= main_x 81)), 35881#(and (<= 82 main_x) (<= main_x 82)), 35882#(and (<= 83 main_x) (<= main_x 83)), 35883#(and (<= main_x 84) (<= 84 main_x)), 35884#(and (<= 85 main_x) (<= main_x 85)), 35885#(and (<= 86 main_x) (<= main_x 86)), 35886#(and (<= 87 main_x) (<= main_x 87)), 35887#(and (<= 88 main_x) (<= main_x 88)), 35888#(and (<= 89 main_x) (<= main_x 89)), 35889#(and (<= 90 main_x) (<= main_x 90)), 35890#(and (<= main_x 91) (<= 91 main_x)), 35891#(and (<= main_x 92) (<= 92 main_x)), 35892#(and (<= 93 main_x) (<= main_x 93)), 35893#(and (<= 94 main_x) (<= main_x 94)), 35894#(and (<= 95 main_x) (<= main_x 95)), 35895#(and (<= 96 main_x) (<= main_x 96)), 35896#(and (<= main_x 97) (<= 97 main_x)), 35897#(and (<= main_x 98) (<= 98 main_x)), 35898#(and (<= 99 main_x) (<= main_x 99)), 35899#(and (<= main_x 100) (<= 100 main_x)), 35900#(and (<= 101 main_x) (<= main_x 101)), 35901#(and (<= main_x 102) (<= 102 main_x)), 35902#(and (<= main_x 103) (<= 103 main_x)), 35903#(and (<= main_x 104) (<= 104 main_x)), 35904#(and (<= main_x 105) (<= 105 main_x)), 35905#(and (<= 106 main_x) (<= main_x 106)), 35906#(and (<= main_x 107) (<= 107 main_x)), 35907#(and (<= 108 main_x) (<= main_x 108)), 35908#(and (<= 109 main_x) (<= main_x 109)), 35909#(and (<= main_x 110) (<= 110 main_x)), 35910#(and (<= main_x 111) (<= 111 main_x)), 35911#(and (<= main_x 112) (<= 112 main_x)), 35912#(and (<= main_x 113) (<= 113 main_x)), 35913#(and (<= 114 main_x) (<= main_x 114)), 35914#(and (<= 115 main_x) (<= main_x 115)), 35915#(or (<= (+ main_x 140) 0) (<= 116 main_x)), 35797#true, 35798#false, 35799#(and (<= main_x 0) (<= 0 main_x)), 35800#(and (<= 1 main_x) (<= main_x 1)), 35801#(and (<= 2 main_x) (<= main_x 2)), 35802#(and (<= 3 main_x) (<= main_x 3)), 35803#(and (<= main_x 4) (<= 4 main_x)), 35804#(and (<= 5 main_x) (<= main_x 5)), 35805#(and (<= 6 main_x) (<= main_x 6)), 35806#(and (<= main_x 7) (<= 7 main_x)), 35807#(and (<= main_x 8) (<= 8 main_x)), 35808#(and (<= 9 main_x) (<= main_x 9)), 35809#(and (<= main_x 10) (<= 10 main_x)), 35810#(and (<= 11 main_x) (<= main_x 11)), 35811#(and (<= 12 main_x) (<= main_x 12)), 35812#(and (<= 13 main_x) (<= main_x 13)), 35813#(and (<= 14 main_x) (<= main_x 14)), 35814#(and (<= 15 main_x) (<= main_x 15)), 35815#(and (<= main_x 16) (<= 16 main_x)), 35816#(and (<= 17 main_x) (<= main_x 17)), 35817#(and (<= main_x 18) (<= 18 main_x)), 35818#(and (<= main_x 19) (<= 19 main_x)), 35819#(and (<= 20 main_x) (<= main_x 20)), 35820#(and (<= 21 main_x) (<= main_x 21)), 35821#(and (<= main_x 22) (<= 22 main_x)), 35822#(and (<= 23 main_x) (<= main_x 23)), 35823#(and (<= main_x 24) (<= 24 main_x)), 35824#(and (<= main_x 25) (<= 25 main_x)), 35825#(and (<= main_x 26) (<= 26 main_x)), 35826#(and (<= main_x 27) (<= 27 main_x)), 35827#(and (<= main_x 28) (<= 28 main_x)), 35828#(and (<= main_x 29) (<= 29 main_x)), 35829#(and (<= 30 main_x) (<= main_x 30)), 35830#(and (<= 31 main_x) (<= main_x 31)), 35831#(and (<= 32 main_x) (<= main_x 32)), 35832#(and (<= main_x 33) (<= 33 main_x)), 35833#(and (<= 34 main_x) (<= main_x 34)), 35834#(and (<= main_x 35) (<= 35 main_x)), 35835#(and (<= main_x 36) (<= 36 main_x)), 35836#(and (<= 37 main_x) (<= main_x 37)), 35837#(and (<= 38 main_x) (<= main_x 38)), 35838#(and (<= 39 main_x) (<= main_x 39)), 35839#(and (<= main_x 40) (<= 40 main_x))] [2018-07-23 13:52:23,133 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 13:52:23,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:52:23,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:52:23,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=235, Invalid=13807, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:23,134 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand 119 states. [2018-07-23 13:52:24,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,065 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:52:24,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:52:24,066 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 118 [2018-07-23 13:52:24,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,066 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:52:24,066 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:52:24,067 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=235, Invalid=13807, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:24,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:52:24,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:52:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:52:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:52:24,075 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 118 [2018-07-23 13:52:24,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,075 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:52:24,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:52:24,075 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:52:24,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:52:24,076 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,076 INFO L357 BasicCegarLoop]: trace histogram [117, 1, 1] [2018-07-23 13:52:24,076 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,076 INFO L82 PathProgramCache]: Analyzing trace with hash 351099704, now seen corresponding path program 117 times [2018-07-23 13:52:24,076 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,865 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 13:52:24,865 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,865 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:52:24,865 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,866 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 13:52:24,866 INFO L185 omatonBuilderFactory]: Interpolants [36398#true, 36399#false, 36400#(and (<= main_x 0) (<= 0 main_x)), 36401#(and (<= 1 main_x) (<= main_x 1)), 36402#(and (<= 2 main_x) (<= main_x 2)), 36403#(and (<= 3 main_x) (<= main_x 3)), 36404#(and (<= main_x 4) (<= 4 main_x)), 36405#(and (<= 5 main_x) (<= main_x 5)), 36406#(and (<= 6 main_x) (<= main_x 6)), 36407#(and (<= main_x 7) (<= 7 main_x)), 36408#(and (<= main_x 8) (<= 8 main_x)), 36409#(and (<= 9 main_x) (<= main_x 9)), 36410#(and (<= main_x 10) (<= 10 main_x)), 36411#(and (<= 11 main_x) (<= main_x 11)), 36412#(and (<= 12 main_x) (<= main_x 12)), 36413#(and (<= 13 main_x) (<= main_x 13)), 36414#(and (<= 14 main_x) (<= main_x 14)), 36415#(and (<= 15 main_x) (<= main_x 15)), 36416#(and (<= main_x 16) (<= 16 main_x)), 36417#(and (<= 17 main_x) (<= main_x 17)), 36418#(and (<= main_x 18) (<= 18 main_x)), 36419#(and (<= main_x 19) (<= 19 main_x)), 36420#(and (<= 20 main_x) (<= main_x 20)), 36421#(and (<= 21 main_x) (<= main_x 21)), 36422#(and (<= main_x 22) (<= 22 main_x)), 36423#(and (<= 23 main_x) (<= main_x 23)), 36424#(and (<= main_x 24) (<= 24 main_x)), 36425#(and (<= main_x 25) (<= 25 main_x)), 36426#(and (<= main_x 26) (<= 26 main_x)), 36427#(and (<= main_x 27) (<= 27 main_x)), 36428#(and (<= main_x 28) (<= 28 main_x)), 36429#(and (<= main_x 29) (<= 29 main_x)), 36430#(and (<= 30 main_x) (<= main_x 30)), 36431#(and (<= 31 main_x) (<= main_x 31)), 36432#(and (<= 32 main_x) (<= main_x 32)), 36433#(and (<= main_x 33) (<= 33 main_x)), 36434#(and (<= 34 main_x) (<= main_x 34)), 36435#(and (<= main_x 35) (<= 35 main_x)), 36436#(and (<= main_x 36) (<= 36 main_x)), 36437#(and (<= 37 main_x) (<= main_x 37)), 36438#(and (<= 38 main_x) (<= main_x 38)), 36439#(and (<= 39 main_x) (<= main_x 39)), 36440#(and (<= main_x 40) (<= 40 main_x)), 36441#(and (<= 41 main_x) (<= main_x 41)), 36442#(and (<= 42 main_x) (<= main_x 42)), 36443#(and (<= 43 main_x) (<= main_x 43)), 36444#(and (<= main_x 44) (<= 44 main_x)), 36445#(and (<= 45 main_x) (<= main_x 45)), 36446#(and (<= 46 main_x) (<= main_x 46)), 36447#(and (<= 47 main_x) (<= main_x 47)), 36448#(and (<= 48 main_x) (<= main_x 48)), 36449#(and (<= main_x 49) (<= 49 main_x)), 36450#(and (<= main_x 50) (<= 50 main_x)), 36451#(and (<= main_x 51) (<= 51 main_x)), 36452#(and (<= 52 main_x) (<= main_x 52)), 36453#(and (<= main_x 53) (<= 53 main_x)), 36454#(and (<= 54 main_x) (<= main_x 54)), 36455#(and (<= 55 main_x) (<= main_x 55)), 36456#(and (<= main_x 56) (<= 56 main_x)), 36457#(and (<= main_x 57) (<= 57 main_x)), 36458#(and (<= 58 main_x) (<= main_x 58)), 36459#(and (<= 59 main_x) (<= main_x 59)), 36460#(and (<= main_x 60) (<= 60 main_x)), 36461#(and (<= main_x 61) (<= 61 main_x)), 36462#(and (<= main_x 62) (<= 62 main_x)), 36463#(and (<= 63 main_x) (<= main_x 63)), 36464#(and (<= 64 main_x) (<= main_x 64)), 36465#(and (<= main_x 65) (<= 65 main_x)), 36466#(and (<= main_x 66) (<= 66 main_x)), 36467#(and (<= 67 main_x) (<= main_x 67)), 36468#(and (<= main_x 68) (<= 68 main_x)), 36469#(and (<= 69 main_x) (<= main_x 69)), 36470#(and (<= main_x 70) (<= 70 main_x)), 36471#(and (<= 71 main_x) (<= main_x 71)), 36472#(and (<= main_x 72) (<= 72 main_x)), 36473#(and (<= main_x 73) (<= 73 main_x)), 36474#(and (<= 74 main_x) (<= main_x 74)), 36475#(and (<= main_x 75) (<= 75 main_x)), 36476#(and (<= main_x 76) (<= 76 main_x)), 36477#(and (<= 77 main_x) (<= main_x 77)), 36478#(and (<= 78 main_x) (<= main_x 78)), 36479#(and (<= 79 main_x) (<= main_x 79)), 36480#(and (<= main_x 80) (<= 80 main_x)), 36481#(and (<= 81 main_x) (<= main_x 81)), 36482#(and (<= 82 main_x) (<= main_x 82)), 36483#(and (<= 83 main_x) (<= main_x 83)), 36484#(and (<= main_x 84) (<= 84 main_x)), 36485#(and (<= 85 main_x) (<= main_x 85)), 36486#(and (<= 86 main_x) (<= main_x 86)), 36487#(and (<= 87 main_x) (<= main_x 87)), 36488#(and (<= 88 main_x) (<= main_x 88)), 36489#(and (<= 89 main_x) (<= main_x 89)), 36490#(and (<= 90 main_x) (<= main_x 90)), 36491#(and (<= main_x 91) (<= 91 main_x)), 36492#(and (<= main_x 92) (<= 92 main_x)), 36493#(and (<= 93 main_x) (<= main_x 93)), 36494#(and (<= 94 main_x) (<= main_x 94)), 36495#(and (<= 95 main_x) (<= main_x 95)), 36496#(and (<= 96 main_x) (<= main_x 96)), 36497#(and (<= main_x 97) (<= 97 main_x)), 36498#(and (<= main_x 98) (<= 98 main_x)), 36499#(and (<= 99 main_x) (<= main_x 99)), 36500#(and (<= main_x 100) (<= 100 main_x)), 36501#(and (<= 101 main_x) (<= main_x 101)), 36502#(and (<= main_x 102) (<= 102 main_x)), 36503#(and (<= main_x 103) (<= 103 main_x)), 36504#(and (<= main_x 104) (<= 104 main_x)), 36505#(and (<= main_x 105) (<= 105 main_x)), 36506#(and (<= 106 main_x) (<= main_x 106)), 36507#(and (<= main_x 107) (<= 107 main_x)), 36508#(and (<= 108 main_x) (<= main_x 108)), 36509#(and (<= 109 main_x) (<= main_x 109)), 36510#(and (<= main_x 110) (<= 110 main_x)), 36511#(and (<= main_x 111) (<= 111 main_x)), 36512#(and (<= main_x 112) (<= 112 main_x)), 36513#(and (<= main_x 113) (<= 113 main_x)), 36514#(and (<= 114 main_x) (<= main_x 114)), 36515#(and (<= 115 main_x) (<= main_x 115)), 36516#(and (<= 116 main_x) (<= main_x 116)), 36517#(or (<= 117 main_x) (<= (+ main_x 139) 0))] [2018-07-23 13:52:24,868 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 13:52:24,868 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:52:24,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:52:24,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=14043, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:52:24,869 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 120 states. [2018-07-23 13:52:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,844 INFO L93 Difference]: Finished difference Result 122 states and 122 transitions. [2018-07-23 13:52:25,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:52:25,844 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 119 [2018-07-23 13:52:25,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,845 INFO L225 Difference]: With dead ends: 122 [2018-07-23 13:52:25,845 INFO L226 Difference]: Without dead ends: 121 [2018-07-23 13:52:25,845 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=14043, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:52:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-07-23 13:52:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-07-23 13:52:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-07-23 13:52:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2018-07-23 13:52:25,852 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 119 [2018-07-23 13:52:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,853 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2018-07-23 13:52:25,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:52:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2018-07-23 13:52:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-23 13:52:25,853 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,854 INFO L357 BasicCegarLoop]: trace histogram [118, 1, 1] [2018-07-23 13:52:25,854 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2000810829, now seen corresponding path program 118 times [2018-07-23 13:52:25,854 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:26,579 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 13:52:26,579 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:26,579 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:52:26,579 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:26,579 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 13:52:26,580 INFO L185 omatonBuilderFactory]: Interpolants [37120#(and (<= 114 main_x) (<= main_x 114)), 37121#(and (<= 115 main_x) (<= main_x 115)), 37122#(and (<= 116 main_x) (<= main_x 116)), 37123#(and (<= 117 main_x) (<= main_x 117)), 37124#(or (<= (+ main_x 138) 0) (<= 118 main_x)), 37004#true, 37005#false, 37006#(and (<= main_x 0) (<= 0 main_x)), 37007#(and (<= 1 main_x) (<= main_x 1)), 37008#(and (<= 2 main_x) (<= main_x 2)), 37009#(and (<= 3 main_x) (<= main_x 3)), 37010#(and (<= main_x 4) (<= 4 main_x)), 37011#(and (<= 5 main_x) (<= main_x 5)), 37012#(and (<= 6 main_x) (<= main_x 6)), 37013#(and (<= main_x 7) (<= 7 main_x)), 37014#(and (<= main_x 8) (<= 8 main_x)), 37015#(and (<= 9 main_x) (<= main_x 9)), 37016#(and (<= main_x 10) (<= 10 main_x)), 37017#(and (<= 11 main_x) (<= main_x 11)), 37018#(and (<= 12 main_x) (<= main_x 12)), 37019#(and (<= 13 main_x) (<= main_x 13)), 37020#(and (<= 14 main_x) (<= main_x 14)), 37021#(and (<= 15 main_x) (<= main_x 15)), 37022#(and (<= main_x 16) (<= 16 main_x)), 37023#(and (<= 17 main_x) (<= main_x 17)), 37024#(and (<= main_x 18) (<= 18 main_x)), 37025#(and (<= main_x 19) (<= 19 main_x)), 37026#(and (<= 20 main_x) (<= main_x 20)), 37027#(and (<= 21 main_x) (<= main_x 21)), 37028#(and (<= main_x 22) (<= 22 main_x)), 37029#(and (<= 23 main_x) (<= main_x 23)), 37030#(and (<= main_x 24) (<= 24 main_x)), 37031#(and (<= main_x 25) (<= 25 main_x)), 37032#(and (<= main_x 26) (<= 26 main_x)), 37033#(and (<= main_x 27) (<= 27 main_x)), 37034#(and (<= main_x 28) (<= 28 main_x)), 37035#(and (<= main_x 29) (<= 29 main_x)), 37036#(and (<= 30 main_x) (<= main_x 30)), 37037#(and (<= 31 main_x) (<= main_x 31)), 37038#(and (<= 32 main_x) (<= main_x 32)), 37039#(and (<= main_x 33) (<= 33 main_x)), 37040#(and (<= 34 main_x) (<= main_x 34)), 37041#(and (<= main_x 35) (<= 35 main_x)), 37042#(and (<= main_x 36) (<= 36 main_x)), 37043#(and (<= 37 main_x) (<= main_x 37)), 37044#(and (<= 38 main_x) (<= main_x 38)), 37045#(and (<= 39 main_x) (<= main_x 39)), 37046#(and (<= main_x 40) (<= 40 main_x)), 37047#(and (<= 41 main_x) (<= main_x 41)), 37048#(and (<= 42 main_x) (<= main_x 42)), 37049#(and (<= 43 main_x) (<= main_x 43)), 37050#(and (<= main_x 44) (<= 44 main_x)), 37051#(and (<= 45 main_x) (<= main_x 45)), 37052#(and (<= 46 main_x) (<= main_x 46)), 37053#(and (<= 47 main_x) (<= main_x 47)), 37054#(and (<= 48 main_x) (<= main_x 48)), 37055#(and (<= main_x 49) (<= 49 main_x)), 37056#(and (<= main_x 50) (<= 50 main_x)), 37057#(and (<= main_x 51) (<= 51 main_x)), 37058#(and (<= 52 main_x) (<= main_x 52)), 37059#(and (<= main_x 53) (<= 53 main_x)), 37060#(and (<= 54 main_x) (<= main_x 54)), 37061#(and (<= 55 main_x) (<= main_x 55)), 37062#(and (<= main_x 56) (<= 56 main_x)), 37063#(and (<= main_x 57) (<= 57 main_x)), 37064#(and (<= 58 main_x) (<= main_x 58)), 37065#(and (<= 59 main_x) (<= main_x 59)), 37066#(and (<= main_x 60) (<= 60 main_x)), 37067#(and (<= main_x 61) (<= 61 main_x)), 37068#(and (<= main_x 62) (<= 62 main_x)), 37069#(and (<= 63 main_x) (<= main_x 63)), 37070#(and (<= 64 main_x) (<= main_x 64)), 37071#(and (<= main_x 65) (<= 65 main_x)), 37072#(and (<= main_x 66) (<= 66 main_x)), 37073#(and (<= 67 main_x) (<= main_x 67)), 37074#(and (<= main_x 68) (<= 68 main_x)), 37075#(and (<= 69 main_x) (<= main_x 69)), 37076#(and (<= main_x 70) (<= 70 main_x)), 37077#(and (<= 71 main_x) (<= main_x 71)), 37078#(and (<= main_x 72) (<= 72 main_x)), 37079#(and (<= main_x 73) (<= 73 main_x)), 37080#(and (<= 74 main_x) (<= main_x 74)), 37081#(and (<= main_x 75) (<= 75 main_x)), 37082#(and (<= main_x 76) (<= 76 main_x)), 37083#(and (<= 77 main_x) (<= main_x 77)), 37084#(and (<= 78 main_x) (<= main_x 78)), 37085#(and (<= 79 main_x) (<= main_x 79)), 37086#(and (<= main_x 80) (<= 80 main_x)), 37087#(and (<= 81 main_x) (<= main_x 81)), 37088#(and (<= 82 main_x) (<= main_x 82)), 37089#(and (<= 83 main_x) (<= main_x 83)), 37090#(and (<= main_x 84) (<= 84 main_x)), 37091#(and (<= 85 main_x) (<= main_x 85)), 37092#(and (<= 86 main_x) (<= main_x 86)), 37093#(and (<= 87 main_x) (<= main_x 87)), 37094#(and (<= 88 main_x) (<= main_x 88)), 37095#(and (<= 89 main_x) (<= main_x 89)), 37096#(and (<= 90 main_x) (<= main_x 90)), 37097#(and (<= main_x 91) (<= 91 main_x)), 37098#(and (<= main_x 92) (<= 92 main_x)), 37099#(and (<= 93 main_x) (<= main_x 93)), 37100#(and (<= 94 main_x) (<= main_x 94)), 37101#(and (<= 95 main_x) (<= main_x 95)), 37102#(and (<= 96 main_x) (<= main_x 96)), 37103#(and (<= main_x 97) (<= 97 main_x)), 37104#(and (<= main_x 98) (<= 98 main_x)), 37105#(and (<= 99 main_x) (<= main_x 99)), 37106#(and (<= main_x 100) (<= 100 main_x)), 37107#(and (<= 101 main_x) (<= main_x 101)), 37108#(and (<= main_x 102) (<= 102 main_x)), 37109#(and (<= main_x 103) (<= 103 main_x)), 37110#(and (<= main_x 104) (<= 104 main_x)), 37111#(and (<= main_x 105) (<= 105 main_x)), 37112#(and (<= 106 main_x) (<= main_x 106)), 37113#(and (<= main_x 107) (<= 107 main_x)), 37114#(and (<= 108 main_x) (<= main_x 108)), 37115#(and (<= 109 main_x) (<= main_x 109)), 37116#(and (<= main_x 110) (<= 110 main_x)), 37117#(and (<= main_x 111) (<= 111 main_x)), 37118#(and (<= main_x 112) (<= 112 main_x)), 37119#(and (<= main_x 113) (<= 113 main_x))] [2018-07-23 13:52:26,580 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 13:52:26,580 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:52:26,581 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:52:26,581 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=14281, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:52:26,581 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand 121 states. [2018-07-23 13:52:27,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,540 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:52:27,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:52:27,540 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 120 [2018-07-23 13:52:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,540 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:52:27,541 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:52:27,542 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=14281, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:52:27,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:52:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:52:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:52:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:52:27,549 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 120 [2018-07-23 13:52:27,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,550 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:52:27,550 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:52:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:52:27,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:52:27,550 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,551 INFO L357 BasicCegarLoop]: trace histogram [119, 1, 1] [2018-07-23 13:52:27,551 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1895593320, now seen corresponding path program 119 times [2018-07-23 13:52:27,551 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,297 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 13:52:28,297 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,297 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:52:28,297 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,297 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 13:52:28,298 INFO L185 omatonBuilderFactory]: Interpolants [37632#(and (<= 15 main_x) (<= main_x 15)), 37633#(and (<= main_x 16) (<= 16 main_x)), 37634#(and (<= 17 main_x) (<= main_x 17)), 37635#(and (<= main_x 18) (<= 18 main_x)), 37636#(and (<= main_x 19) (<= 19 main_x)), 37637#(and (<= 20 main_x) (<= main_x 20)), 37638#(and (<= 21 main_x) (<= main_x 21)), 37639#(and (<= main_x 22) (<= 22 main_x)), 37640#(and (<= 23 main_x) (<= main_x 23)), 37641#(and (<= main_x 24) (<= 24 main_x)), 37642#(and (<= main_x 25) (<= 25 main_x)), 37643#(and (<= main_x 26) (<= 26 main_x)), 37644#(and (<= main_x 27) (<= 27 main_x)), 37645#(and (<= main_x 28) (<= 28 main_x)), 37646#(and (<= main_x 29) (<= 29 main_x)), 37647#(and (<= 30 main_x) (<= main_x 30)), 37648#(and (<= 31 main_x) (<= main_x 31)), 37649#(and (<= 32 main_x) (<= main_x 32)), 37650#(and (<= main_x 33) (<= 33 main_x)), 37651#(and (<= 34 main_x) (<= main_x 34)), 37652#(and (<= main_x 35) (<= 35 main_x)), 37653#(and (<= main_x 36) (<= 36 main_x)), 37654#(and (<= 37 main_x) (<= main_x 37)), 37655#(and (<= 38 main_x) (<= main_x 38)), 37656#(and (<= 39 main_x) (<= main_x 39)), 37657#(and (<= main_x 40) (<= 40 main_x)), 37658#(and (<= 41 main_x) (<= main_x 41)), 37659#(and (<= 42 main_x) (<= main_x 42)), 37660#(and (<= 43 main_x) (<= main_x 43)), 37661#(and (<= main_x 44) (<= 44 main_x)), 37662#(and (<= 45 main_x) (<= main_x 45)), 37663#(and (<= 46 main_x) (<= main_x 46)), 37664#(and (<= 47 main_x) (<= main_x 47)), 37665#(and (<= 48 main_x) (<= main_x 48)), 37666#(and (<= main_x 49) (<= 49 main_x)), 37667#(and (<= main_x 50) (<= 50 main_x)), 37668#(and (<= main_x 51) (<= 51 main_x)), 37669#(and (<= 52 main_x) (<= main_x 52)), 37670#(and (<= main_x 53) (<= 53 main_x)), 37671#(and (<= 54 main_x) (<= main_x 54)), 37672#(and (<= 55 main_x) (<= main_x 55)), 37673#(and (<= main_x 56) (<= 56 main_x)), 37674#(and (<= main_x 57) (<= 57 main_x)), 37675#(and (<= 58 main_x) (<= main_x 58)), 37676#(and (<= 59 main_x) (<= main_x 59)), 37677#(and (<= main_x 60) (<= 60 main_x)), 37678#(and (<= main_x 61) (<= 61 main_x)), 37679#(and (<= main_x 62) (<= 62 main_x)), 37680#(and (<= 63 main_x) (<= main_x 63)), 37681#(and (<= 64 main_x) (<= main_x 64)), 37682#(and (<= main_x 65) (<= 65 main_x)), 37683#(and (<= main_x 66) (<= 66 main_x)), 37684#(and (<= 67 main_x) (<= main_x 67)), 37685#(and (<= main_x 68) (<= 68 main_x)), 37686#(and (<= 69 main_x) (<= main_x 69)), 37687#(and (<= main_x 70) (<= 70 main_x)), 37688#(and (<= 71 main_x) (<= main_x 71)), 37689#(and (<= main_x 72) (<= 72 main_x)), 37690#(and (<= main_x 73) (<= 73 main_x)), 37691#(and (<= 74 main_x) (<= main_x 74)), 37692#(and (<= main_x 75) (<= 75 main_x)), 37693#(and (<= main_x 76) (<= 76 main_x)), 37694#(and (<= 77 main_x) (<= main_x 77)), 37695#(and (<= 78 main_x) (<= main_x 78)), 37696#(and (<= 79 main_x) (<= main_x 79)), 37697#(and (<= main_x 80) (<= 80 main_x)), 37698#(and (<= 81 main_x) (<= main_x 81)), 37699#(and (<= 82 main_x) (<= main_x 82)), 37700#(and (<= 83 main_x) (<= main_x 83)), 37701#(and (<= main_x 84) (<= 84 main_x)), 37702#(and (<= 85 main_x) (<= main_x 85)), 37703#(and (<= 86 main_x) (<= main_x 86)), 37704#(and (<= 87 main_x) (<= main_x 87)), 37705#(and (<= 88 main_x) (<= main_x 88)), 37706#(and (<= 89 main_x) (<= main_x 89)), 37707#(and (<= 90 main_x) (<= main_x 90)), 37708#(and (<= main_x 91) (<= 91 main_x)), 37709#(and (<= main_x 92) (<= 92 main_x)), 37710#(and (<= 93 main_x) (<= main_x 93)), 37711#(and (<= 94 main_x) (<= main_x 94)), 37712#(and (<= 95 main_x) (<= main_x 95)), 37713#(and (<= 96 main_x) (<= main_x 96)), 37714#(and (<= main_x 97) (<= 97 main_x)), 37715#(and (<= main_x 98) (<= 98 main_x)), 37716#(and (<= 99 main_x) (<= main_x 99)), 37717#(and (<= main_x 100) (<= 100 main_x)), 37718#(and (<= 101 main_x) (<= main_x 101)), 37719#(and (<= main_x 102) (<= 102 main_x)), 37720#(and (<= main_x 103) (<= 103 main_x)), 37721#(and (<= main_x 104) (<= 104 main_x)), 37722#(and (<= main_x 105) (<= 105 main_x)), 37723#(and (<= 106 main_x) (<= main_x 106)), 37724#(and (<= main_x 107) (<= 107 main_x)), 37725#(and (<= 108 main_x) (<= main_x 108)), 37726#(and (<= 109 main_x) (<= main_x 109)), 37727#(and (<= main_x 110) (<= 110 main_x)), 37728#(and (<= main_x 111) (<= 111 main_x)), 37729#(and (<= main_x 112) (<= 112 main_x)), 37730#(and (<= main_x 113) (<= 113 main_x)), 37731#(and (<= 114 main_x) (<= main_x 114)), 37732#(and (<= 115 main_x) (<= main_x 115)), 37733#(and (<= 116 main_x) (<= main_x 116)), 37734#(and (<= 117 main_x) (<= main_x 117)), 37735#(and (<= 118 main_x) (<= main_x 118)), 37736#(or (<= (+ main_x 137) 0) (<= 119 main_x)), 37615#true, 37616#false, 37617#(and (<= main_x 0) (<= 0 main_x)), 37618#(and (<= 1 main_x) (<= main_x 1)), 37619#(and (<= 2 main_x) (<= main_x 2)), 37620#(and (<= 3 main_x) (<= main_x 3)), 37621#(and (<= main_x 4) (<= 4 main_x)), 37622#(and (<= 5 main_x) (<= main_x 5)), 37623#(and (<= 6 main_x) (<= main_x 6)), 37624#(and (<= main_x 7) (<= 7 main_x)), 37625#(and (<= main_x 8) (<= 8 main_x)), 37626#(and (<= 9 main_x) (<= main_x 9)), 37627#(and (<= main_x 10) (<= 10 main_x)), 37628#(and (<= 11 main_x) (<= main_x 11)), 37629#(and (<= 12 main_x) (<= main_x 12)), 37630#(and (<= 13 main_x) (<= main_x 13)), 37631#(and (<= 14 main_x) (<= main_x 14))] [2018-07-23 13:52:28,299 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 13:52:28,299 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:52:28,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:52:28,300 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=14521, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:52:28,300 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 122 states. [2018-07-23 13:52:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:29,294 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2018-07-23 13:52:29,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:52:29,294 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 121 [2018-07-23 13:52:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:29,294 INFO L225 Difference]: With dead ends: 124 [2018-07-23 13:52:29,295 INFO L226 Difference]: Without dead ends: 123 [2018-07-23 13:52:29,296 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=241, Invalid=14521, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:52:29,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-07-23 13:52:29,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-07-23 13:52:29,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-07-23 13:52:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2018-07-23 13:52:29,303 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 121 [2018-07-23 13:52:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:29,303 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 123 transitions. [2018-07-23 13:52:29,303 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:52:29,303 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 123 transitions. [2018-07-23 13:52:29,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-07-23 13:52:29,304 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:29,304 INFO L357 BasicCegarLoop]: trace histogram [120, 1, 1] [2018-07-23 13:52:29,304 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:29,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1366149459, now seen corresponding path program 120 times [2018-07-23 13:52:29,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:30,132 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 13:52:30,132 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:30,133 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:52:30,133 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:30,133 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 13:52:30,133 INFO L185 omatonBuilderFactory]: Interpolants [38231#true, 38232#false, 38233#(and (<= main_x 0) (<= 0 main_x)), 38234#(and (<= 1 main_x) (<= main_x 1)), 38235#(and (<= 2 main_x) (<= main_x 2)), 38236#(and (<= 3 main_x) (<= main_x 3)), 38237#(and (<= main_x 4) (<= 4 main_x)), 38238#(and (<= 5 main_x) (<= main_x 5)), 38239#(and (<= 6 main_x) (<= main_x 6)), 38240#(and (<= main_x 7) (<= 7 main_x)), 38241#(and (<= main_x 8) (<= 8 main_x)), 38242#(and (<= 9 main_x) (<= main_x 9)), 38243#(and (<= main_x 10) (<= 10 main_x)), 38244#(and (<= 11 main_x) (<= main_x 11)), 38245#(and (<= 12 main_x) (<= main_x 12)), 38246#(and (<= 13 main_x) (<= main_x 13)), 38247#(and (<= 14 main_x) (<= main_x 14)), 38248#(and (<= 15 main_x) (<= main_x 15)), 38249#(and (<= main_x 16) (<= 16 main_x)), 38250#(and (<= 17 main_x) (<= main_x 17)), 38251#(and (<= main_x 18) (<= 18 main_x)), 38252#(and (<= main_x 19) (<= 19 main_x)), 38253#(and (<= 20 main_x) (<= main_x 20)), 38254#(and (<= 21 main_x) (<= main_x 21)), 38255#(and (<= main_x 22) (<= 22 main_x)), 38256#(and (<= 23 main_x) (<= main_x 23)), 38257#(and (<= main_x 24) (<= 24 main_x)), 38258#(and (<= main_x 25) (<= 25 main_x)), 38259#(and (<= main_x 26) (<= 26 main_x)), 38260#(and (<= main_x 27) (<= 27 main_x)), 38261#(and (<= main_x 28) (<= 28 main_x)), 38262#(and (<= main_x 29) (<= 29 main_x)), 38263#(and (<= 30 main_x) (<= main_x 30)), 38264#(and (<= 31 main_x) (<= main_x 31)), 38265#(and (<= 32 main_x) (<= main_x 32)), 38266#(and (<= main_x 33) (<= 33 main_x)), 38267#(and (<= 34 main_x) (<= main_x 34)), 38268#(and (<= main_x 35) (<= 35 main_x)), 38269#(and (<= main_x 36) (<= 36 main_x)), 38270#(and (<= 37 main_x) (<= main_x 37)), 38271#(and (<= 38 main_x) (<= main_x 38)), 38272#(and (<= 39 main_x) (<= main_x 39)), 38273#(and (<= main_x 40) (<= 40 main_x)), 38274#(and (<= 41 main_x) (<= main_x 41)), 38275#(and (<= 42 main_x) (<= main_x 42)), 38276#(and (<= 43 main_x) (<= main_x 43)), 38277#(and (<= main_x 44) (<= 44 main_x)), 38278#(and (<= 45 main_x) (<= main_x 45)), 38279#(and (<= 46 main_x) (<= main_x 46)), 38280#(and (<= 47 main_x) (<= main_x 47)), 38281#(and (<= 48 main_x) (<= main_x 48)), 38282#(and (<= main_x 49) (<= 49 main_x)), 38283#(and (<= main_x 50) (<= 50 main_x)), 38284#(and (<= main_x 51) (<= 51 main_x)), 38285#(and (<= 52 main_x) (<= main_x 52)), 38286#(and (<= main_x 53) (<= 53 main_x)), 38287#(and (<= 54 main_x) (<= main_x 54)), 38288#(and (<= 55 main_x) (<= main_x 55)), 38289#(and (<= main_x 56) (<= 56 main_x)), 38290#(and (<= main_x 57) (<= 57 main_x)), 38291#(and (<= 58 main_x) (<= main_x 58)), 38292#(and (<= 59 main_x) (<= main_x 59)), 38293#(and (<= main_x 60) (<= 60 main_x)), 38294#(and (<= main_x 61) (<= 61 main_x)), 38295#(and (<= main_x 62) (<= 62 main_x)), 38296#(and (<= 63 main_x) (<= main_x 63)), 38297#(and (<= 64 main_x) (<= main_x 64)), 38298#(and (<= main_x 65) (<= 65 main_x)), 38299#(and (<= main_x 66) (<= 66 main_x)), 38300#(and (<= 67 main_x) (<= main_x 67)), 38301#(and (<= main_x 68) (<= 68 main_x)), 38302#(and (<= 69 main_x) (<= main_x 69)), 38303#(and (<= main_x 70) (<= 70 main_x)), 38304#(and (<= 71 main_x) (<= main_x 71)), 38305#(and (<= main_x 72) (<= 72 main_x)), 38306#(and (<= main_x 73) (<= 73 main_x)), 38307#(and (<= 74 main_x) (<= main_x 74)), 38308#(and (<= main_x 75) (<= 75 main_x)), 38309#(and (<= main_x 76) (<= 76 main_x)), 38310#(and (<= 77 main_x) (<= main_x 77)), 38311#(and (<= 78 main_x) (<= main_x 78)), 38312#(and (<= 79 main_x) (<= main_x 79)), 38313#(and (<= main_x 80) (<= 80 main_x)), 38314#(and (<= 81 main_x) (<= main_x 81)), 38315#(and (<= 82 main_x) (<= main_x 82)), 38316#(and (<= 83 main_x) (<= main_x 83)), 38317#(and (<= main_x 84) (<= 84 main_x)), 38318#(and (<= 85 main_x) (<= main_x 85)), 38319#(and (<= 86 main_x) (<= main_x 86)), 38320#(and (<= 87 main_x) (<= main_x 87)), 38321#(and (<= 88 main_x) (<= main_x 88)), 38322#(and (<= 89 main_x) (<= main_x 89)), 38323#(and (<= 90 main_x) (<= main_x 90)), 38324#(and (<= main_x 91) (<= 91 main_x)), 38325#(and (<= main_x 92) (<= 92 main_x)), 38326#(and (<= 93 main_x) (<= main_x 93)), 38327#(and (<= 94 main_x) (<= main_x 94)), 38328#(and (<= 95 main_x) (<= main_x 95)), 38329#(and (<= 96 main_x) (<= main_x 96)), 38330#(and (<= main_x 97) (<= 97 main_x)), 38331#(and (<= main_x 98) (<= 98 main_x)), 38332#(and (<= 99 main_x) (<= main_x 99)), 38333#(and (<= main_x 100) (<= 100 main_x)), 38334#(and (<= 101 main_x) (<= main_x 101)), 38335#(and (<= main_x 102) (<= 102 main_x)), 38336#(and (<= main_x 103) (<= 103 main_x)), 38337#(and (<= main_x 104) (<= 104 main_x)), 38338#(and (<= main_x 105) (<= 105 main_x)), 38339#(and (<= 106 main_x) (<= main_x 106)), 38340#(and (<= main_x 107) (<= 107 main_x)), 38341#(and (<= 108 main_x) (<= main_x 108)), 38342#(and (<= 109 main_x) (<= main_x 109)), 38343#(and (<= main_x 110) (<= 110 main_x)), 38344#(and (<= main_x 111) (<= 111 main_x)), 38345#(and (<= main_x 112) (<= 112 main_x)), 38346#(and (<= main_x 113) (<= 113 main_x)), 38347#(and (<= 114 main_x) (<= main_x 114)), 38348#(and (<= 115 main_x) (<= main_x 115)), 38349#(and (<= 116 main_x) (<= main_x 116)), 38350#(and (<= 117 main_x) (<= main_x 117)), 38351#(and (<= 118 main_x) (<= main_x 118)), 38352#(and (<= main_x 119) (<= 119 main_x)), 38353#(or (<= (+ main_x 136) 0) (<= 120 main_x))] [2018-07-23 13:52:30,134 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 13:52:30,134 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:52:30,134 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:52:30,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=14763, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:52:30,135 INFO L87 Difference]: Start difference. First operand 123 states and 123 transitions. Second operand 123 states. [2018-07-23 13:52:31,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:31,123 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:52:31,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:52:31,123 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 122 [2018-07-23 13:52:31,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:31,123 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:52:31,123 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:52:31,124 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=14763, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:52:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:52:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:52:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:52:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:52:31,132 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 122 [2018-07-23 13:52:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:31,133 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:52:31,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:52:31,133 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:52:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:52:31,133 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:31,133 INFO L357 BasicCegarLoop]: trace histogram [121, 1, 1] [2018-07-23 13:52:31,134 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:31,134 INFO L82 PathProgramCache]: Analyzing trace with hash -599039496, now seen corresponding path program 121 times [2018-07-23 13:52:31,134 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,886 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 13:52:31,887 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:52:31,887 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,887 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 13:52:31,887 INFO L185 omatonBuilderFactory]: Interpolants [38912#(and (<= 58 main_x) (<= main_x 58)), 38913#(and (<= 59 main_x) (<= main_x 59)), 38914#(and (<= main_x 60) (<= 60 main_x)), 38915#(and (<= main_x 61) (<= 61 main_x)), 38916#(and (<= main_x 62) (<= 62 main_x)), 38917#(and (<= 63 main_x) (<= main_x 63)), 38918#(and (<= 64 main_x) (<= main_x 64)), 38919#(and (<= main_x 65) (<= 65 main_x)), 38920#(and (<= main_x 66) (<= 66 main_x)), 38921#(and (<= 67 main_x) (<= main_x 67)), 38922#(and (<= main_x 68) (<= 68 main_x)), 38923#(and (<= 69 main_x) (<= main_x 69)), 38924#(and (<= main_x 70) (<= 70 main_x)), 38925#(and (<= 71 main_x) (<= main_x 71)), 38926#(and (<= main_x 72) (<= 72 main_x)), 38927#(and (<= main_x 73) (<= 73 main_x)), 38928#(and (<= 74 main_x) (<= main_x 74)), 38929#(and (<= main_x 75) (<= 75 main_x)), 38930#(and (<= main_x 76) (<= 76 main_x)), 38931#(and (<= 77 main_x) (<= main_x 77)), 38932#(and (<= 78 main_x) (<= main_x 78)), 38933#(and (<= 79 main_x) (<= main_x 79)), 38934#(and (<= main_x 80) (<= 80 main_x)), 38935#(and (<= 81 main_x) (<= main_x 81)), 38936#(and (<= 82 main_x) (<= main_x 82)), 38937#(and (<= 83 main_x) (<= main_x 83)), 38938#(and (<= main_x 84) (<= 84 main_x)), 38939#(and (<= 85 main_x) (<= main_x 85)), 38940#(and (<= 86 main_x) (<= main_x 86)), 38941#(and (<= 87 main_x) (<= main_x 87)), 38942#(and (<= 88 main_x) (<= main_x 88)), 38943#(and (<= 89 main_x) (<= main_x 89)), 38944#(and (<= 90 main_x) (<= main_x 90)), 38945#(and (<= main_x 91) (<= 91 main_x)), 38946#(and (<= main_x 92) (<= 92 main_x)), 38947#(and (<= 93 main_x) (<= main_x 93)), 38948#(and (<= 94 main_x) (<= main_x 94)), 38949#(and (<= 95 main_x) (<= main_x 95)), 38950#(and (<= 96 main_x) (<= main_x 96)), 38951#(and (<= main_x 97) (<= 97 main_x)), 38952#(and (<= main_x 98) (<= 98 main_x)), 38953#(and (<= 99 main_x) (<= main_x 99)), 38954#(and (<= main_x 100) (<= 100 main_x)), 38955#(and (<= 101 main_x) (<= main_x 101)), 38956#(and (<= main_x 102) (<= 102 main_x)), 38957#(and (<= main_x 103) (<= 103 main_x)), 38958#(and (<= main_x 104) (<= 104 main_x)), 38959#(and (<= main_x 105) (<= 105 main_x)), 38960#(and (<= 106 main_x) (<= main_x 106)), 38961#(and (<= main_x 107) (<= 107 main_x)), 38962#(and (<= 108 main_x) (<= main_x 108)), 38963#(and (<= 109 main_x) (<= main_x 109)), 38964#(and (<= main_x 110) (<= 110 main_x)), 38965#(and (<= main_x 111) (<= 111 main_x)), 38966#(and (<= main_x 112) (<= 112 main_x)), 38967#(and (<= main_x 113) (<= 113 main_x)), 38968#(and (<= 114 main_x) (<= main_x 114)), 38969#(and (<= 115 main_x) (<= main_x 115)), 38970#(and (<= 116 main_x) (<= main_x 116)), 38971#(and (<= 117 main_x) (<= main_x 117)), 38972#(and (<= 118 main_x) (<= main_x 118)), 38973#(and (<= main_x 119) (<= 119 main_x)), 38974#(and (<= main_x 120) (<= 120 main_x)), 38975#(or (<= (+ main_x 135) 0) (<= 121 main_x)), 38852#true, 38853#false, 38854#(and (<= main_x 0) (<= 0 main_x)), 38855#(and (<= 1 main_x) (<= main_x 1)), 38856#(and (<= 2 main_x) (<= main_x 2)), 38857#(and (<= 3 main_x) (<= main_x 3)), 38858#(and (<= main_x 4) (<= 4 main_x)), 38859#(and (<= 5 main_x) (<= main_x 5)), 38860#(and (<= 6 main_x) (<= main_x 6)), 38861#(and (<= main_x 7) (<= 7 main_x)), 38862#(and (<= main_x 8) (<= 8 main_x)), 38863#(and (<= 9 main_x) (<= main_x 9)), 38864#(and (<= main_x 10) (<= 10 main_x)), 38865#(and (<= 11 main_x) (<= main_x 11)), 38866#(and (<= 12 main_x) (<= main_x 12)), 38867#(and (<= 13 main_x) (<= main_x 13)), 38868#(and (<= 14 main_x) (<= main_x 14)), 38869#(and (<= 15 main_x) (<= main_x 15)), 38870#(and (<= main_x 16) (<= 16 main_x)), 38871#(and (<= 17 main_x) (<= main_x 17)), 38872#(and (<= main_x 18) (<= 18 main_x)), 38873#(and (<= main_x 19) (<= 19 main_x)), 38874#(and (<= 20 main_x) (<= main_x 20)), 38875#(and (<= 21 main_x) (<= main_x 21)), 38876#(and (<= main_x 22) (<= 22 main_x)), 38877#(and (<= 23 main_x) (<= main_x 23)), 38878#(and (<= main_x 24) (<= 24 main_x)), 38879#(and (<= main_x 25) (<= 25 main_x)), 38880#(and (<= main_x 26) (<= 26 main_x)), 38881#(and (<= main_x 27) (<= 27 main_x)), 38882#(and (<= main_x 28) (<= 28 main_x)), 38883#(and (<= main_x 29) (<= 29 main_x)), 38884#(and (<= 30 main_x) (<= main_x 30)), 38885#(and (<= 31 main_x) (<= main_x 31)), 38886#(and (<= 32 main_x) (<= main_x 32)), 38887#(and (<= main_x 33) (<= 33 main_x)), 38888#(and (<= 34 main_x) (<= main_x 34)), 38889#(and (<= main_x 35) (<= 35 main_x)), 38890#(and (<= main_x 36) (<= 36 main_x)), 38891#(and (<= 37 main_x) (<= main_x 37)), 38892#(and (<= 38 main_x) (<= main_x 38)), 38893#(and (<= 39 main_x) (<= main_x 39)), 38894#(and (<= main_x 40) (<= 40 main_x)), 38895#(and (<= 41 main_x) (<= main_x 41)), 38896#(and (<= 42 main_x) (<= main_x 42)), 38897#(and (<= 43 main_x) (<= main_x 43)), 38898#(and (<= main_x 44) (<= 44 main_x)), 38899#(and (<= 45 main_x) (<= main_x 45)), 38900#(and (<= 46 main_x) (<= main_x 46)), 38901#(and (<= 47 main_x) (<= main_x 47)), 38902#(and (<= 48 main_x) (<= main_x 48)), 38903#(and (<= main_x 49) (<= 49 main_x)), 38904#(and (<= main_x 50) (<= 50 main_x)), 38905#(and (<= main_x 51) (<= 51 main_x)), 38906#(and (<= 52 main_x) (<= main_x 52)), 38907#(and (<= main_x 53) (<= 53 main_x)), 38908#(and (<= 54 main_x) (<= main_x 54)), 38909#(and (<= 55 main_x) (<= main_x 55)), 38910#(and (<= main_x 56) (<= 56 main_x)), 38911#(and (<= main_x 57) (<= 57 main_x))] [2018-07-23 13:52:31,888 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 13:52:31,888 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:52:31,888 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:52:31,889 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=15007, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:52:31,889 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 124 states. [2018-07-23 13:52:32,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:32,898 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2018-07-23 13:52:32,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:52:32,898 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 123 [2018-07-23 13:52:32,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:32,899 INFO L225 Difference]: With dead ends: 126 [2018-07-23 13:52:32,899 INFO L226 Difference]: Without dead ends: 125 [2018-07-23 13:52:32,900 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=15007, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:52:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-07-23 13:52:32,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-07-23 13:52:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-07-23 13:52:32,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2018-07-23 13:52:32,906 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 123 [2018-07-23 13:52:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:32,906 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2018-07-23 13:52:32,906 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:52:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2018-07-23 13:52:32,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-07-23 13:52:32,907 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:32,907 INFO L357 BasicCegarLoop]: trace histogram [122, 1, 1] [2018-07-23 13:52:32,907 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:32,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1390354957, now seen corresponding path program 122 times [2018-07-23 13:52:32,908 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,703 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 13:52:33,704 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:52:33,704 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,704 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 13:52:33,705 INFO L185 omatonBuilderFactory]: Interpolants [39478#true, 39479#false, 39480#(and (<= main_x 0) (<= 0 main_x)), 39481#(and (<= 1 main_x) (<= main_x 1)), 39482#(and (<= 2 main_x) (<= main_x 2)), 39483#(and (<= 3 main_x) (<= main_x 3)), 39484#(and (<= main_x 4) (<= 4 main_x)), 39485#(and (<= 5 main_x) (<= main_x 5)), 39486#(and (<= 6 main_x) (<= main_x 6)), 39487#(and (<= main_x 7) (<= 7 main_x)), 39488#(and (<= main_x 8) (<= 8 main_x)), 39489#(and (<= 9 main_x) (<= main_x 9)), 39490#(and (<= main_x 10) (<= 10 main_x)), 39491#(and (<= 11 main_x) (<= main_x 11)), 39492#(and (<= 12 main_x) (<= main_x 12)), 39493#(and (<= 13 main_x) (<= main_x 13)), 39494#(and (<= 14 main_x) (<= main_x 14)), 39495#(and (<= 15 main_x) (<= main_x 15)), 39496#(and (<= main_x 16) (<= 16 main_x)), 39497#(and (<= 17 main_x) (<= main_x 17)), 39498#(and (<= main_x 18) (<= 18 main_x)), 39499#(and (<= main_x 19) (<= 19 main_x)), 39500#(and (<= 20 main_x) (<= main_x 20)), 39501#(and (<= 21 main_x) (<= main_x 21)), 39502#(and (<= main_x 22) (<= 22 main_x)), 39503#(and (<= 23 main_x) (<= main_x 23)), 39504#(and (<= main_x 24) (<= 24 main_x)), 39505#(and (<= main_x 25) (<= 25 main_x)), 39506#(and (<= main_x 26) (<= 26 main_x)), 39507#(and (<= main_x 27) (<= 27 main_x)), 39508#(and (<= main_x 28) (<= 28 main_x)), 39509#(and (<= main_x 29) (<= 29 main_x)), 39510#(and (<= 30 main_x) (<= main_x 30)), 39511#(and (<= 31 main_x) (<= main_x 31)), 39512#(and (<= 32 main_x) (<= main_x 32)), 39513#(and (<= main_x 33) (<= 33 main_x)), 39514#(and (<= 34 main_x) (<= main_x 34)), 39515#(and (<= main_x 35) (<= 35 main_x)), 39516#(and (<= main_x 36) (<= 36 main_x)), 39517#(and (<= 37 main_x) (<= main_x 37)), 39518#(and (<= 38 main_x) (<= main_x 38)), 39519#(and (<= 39 main_x) (<= main_x 39)), 39520#(and (<= main_x 40) (<= 40 main_x)), 39521#(and (<= 41 main_x) (<= main_x 41)), 39522#(and (<= 42 main_x) (<= main_x 42)), 39523#(and (<= 43 main_x) (<= main_x 43)), 39524#(and (<= main_x 44) (<= 44 main_x)), 39525#(and (<= 45 main_x) (<= main_x 45)), 39526#(and (<= 46 main_x) (<= main_x 46)), 39527#(and (<= 47 main_x) (<= main_x 47)), 39528#(and (<= 48 main_x) (<= main_x 48)), 39529#(and (<= main_x 49) (<= 49 main_x)), 39530#(and (<= main_x 50) (<= 50 main_x)), 39531#(and (<= main_x 51) (<= 51 main_x)), 39532#(and (<= 52 main_x) (<= main_x 52)), 39533#(and (<= main_x 53) (<= 53 main_x)), 39534#(and (<= 54 main_x) (<= main_x 54)), 39535#(and (<= 55 main_x) (<= main_x 55)), 39536#(and (<= main_x 56) (<= 56 main_x)), 39537#(and (<= main_x 57) (<= 57 main_x)), 39538#(and (<= 58 main_x) (<= main_x 58)), 39539#(and (<= 59 main_x) (<= main_x 59)), 39540#(and (<= main_x 60) (<= 60 main_x)), 39541#(and (<= main_x 61) (<= 61 main_x)), 39542#(and (<= main_x 62) (<= 62 main_x)), 39543#(and (<= 63 main_x) (<= main_x 63)), 39544#(and (<= 64 main_x) (<= main_x 64)), 39545#(and (<= main_x 65) (<= 65 main_x)), 39546#(and (<= main_x 66) (<= 66 main_x)), 39547#(and (<= 67 main_x) (<= main_x 67)), 39548#(and (<= main_x 68) (<= 68 main_x)), 39549#(and (<= 69 main_x) (<= main_x 69)), 39550#(and (<= main_x 70) (<= 70 main_x)), 39551#(and (<= 71 main_x) (<= main_x 71)), 39552#(and (<= main_x 72) (<= 72 main_x)), 39553#(and (<= main_x 73) (<= 73 main_x)), 39554#(and (<= 74 main_x) (<= main_x 74)), 39555#(and (<= main_x 75) (<= 75 main_x)), 39556#(and (<= main_x 76) (<= 76 main_x)), 39557#(and (<= 77 main_x) (<= main_x 77)), 39558#(and (<= 78 main_x) (<= main_x 78)), 39559#(and (<= 79 main_x) (<= main_x 79)), 39560#(and (<= main_x 80) (<= 80 main_x)), 39561#(and (<= 81 main_x) (<= main_x 81)), 39562#(and (<= 82 main_x) (<= main_x 82)), 39563#(and (<= 83 main_x) (<= main_x 83)), 39564#(and (<= main_x 84) (<= 84 main_x)), 39565#(and (<= 85 main_x) (<= main_x 85)), 39566#(and (<= 86 main_x) (<= main_x 86)), 39567#(and (<= 87 main_x) (<= main_x 87)), 39568#(and (<= 88 main_x) (<= main_x 88)), 39569#(and (<= 89 main_x) (<= main_x 89)), 39570#(and (<= 90 main_x) (<= main_x 90)), 39571#(and (<= main_x 91) (<= 91 main_x)), 39572#(and (<= main_x 92) (<= 92 main_x)), 39573#(and (<= 93 main_x) (<= main_x 93)), 39574#(and (<= 94 main_x) (<= main_x 94)), 39575#(and (<= 95 main_x) (<= main_x 95)), 39576#(and (<= 96 main_x) (<= main_x 96)), 39577#(and (<= main_x 97) (<= 97 main_x)), 39578#(and (<= main_x 98) (<= 98 main_x)), 39579#(and (<= 99 main_x) (<= main_x 99)), 39580#(and (<= main_x 100) (<= 100 main_x)), 39581#(and (<= 101 main_x) (<= main_x 101)), 39582#(and (<= main_x 102) (<= 102 main_x)), 39583#(and (<= main_x 103) (<= 103 main_x)), 39584#(and (<= main_x 104) (<= 104 main_x)), 39585#(and (<= main_x 105) (<= 105 main_x)), 39586#(and (<= 106 main_x) (<= main_x 106)), 39587#(and (<= main_x 107) (<= 107 main_x)), 39588#(and (<= 108 main_x) (<= main_x 108)), 39589#(and (<= 109 main_x) (<= main_x 109)), 39590#(and (<= main_x 110) (<= 110 main_x)), 39591#(and (<= main_x 111) (<= 111 main_x)), 39592#(and (<= main_x 112) (<= 112 main_x)), 39593#(and (<= main_x 113) (<= 113 main_x)), 39594#(and (<= 114 main_x) (<= main_x 114)), 39595#(and (<= 115 main_x) (<= main_x 115)), 39596#(and (<= 116 main_x) (<= main_x 116)), 39597#(and (<= 117 main_x) (<= main_x 117)), 39598#(and (<= 118 main_x) (<= main_x 118)), 39599#(and (<= main_x 119) (<= 119 main_x)), 39600#(and (<= main_x 120) (<= 120 main_x)), 39601#(and (<= 121 main_x) (<= main_x 121)), 39602#(or (<= (+ main_x 134) 0) (<= 122 main_x))] [2018-07-23 13:52:33,706 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 13:52:33,706 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:52:33,706 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:52:33,706 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=15253, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:52:33,707 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 125 states. [2018-07-23 13:52:34,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:34,715 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:52:34,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:52:34,715 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 124 [2018-07-23 13:52:34,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:34,716 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:52:34,716 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:52:34,717 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=247, Invalid=15253, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:52:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:52:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:52:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:52:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:52:34,723 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 124 [2018-07-23 13:52:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:34,723 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:52:34,723 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:52:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:52:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:52:34,724 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:34,724 INFO L357 BasicCegarLoop]: trace histogram [123, 1, 1] [2018-07-23 13:52:34,724 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:34,725 INFO L82 PathProgramCache]: Analyzing trace with hash -151330472, now seen corresponding path program 123 times [2018-07-23 13:52:34,725 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:35,654 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 13:52:35,655 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:35,655 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:52:35,655 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:35,655 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 13:52:35,656 INFO L185 omatonBuilderFactory]: Interpolants [40192#(and (<= 81 main_x) (<= main_x 81)), 40193#(and (<= 82 main_x) (<= main_x 82)), 40194#(and (<= 83 main_x) (<= main_x 83)), 40195#(and (<= main_x 84) (<= 84 main_x)), 40196#(and (<= 85 main_x) (<= main_x 85)), 40197#(and (<= 86 main_x) (<= main_x 86)), 40198#(and (<= 87 main_x) (<= main_x 87)), 40199#(and (<= 88 main_x) (<= main_x 88)), 40200#(and (<= 89 main_x) (<= main_x 89)), 40201#(and (<= 90 main_x) (<= main_x 90)), 40202#(and (<= main_x 91) (<= 91 main_x)), 40203#(and (<= main_x 92) (<= 92 main_x)), 40204#(and (<= 93 main_x) (<= main_x 93)), 40205#(and (<= 94 main_x) (<= main_x 94)), 40206#(and (<= 95 main_x) (<= main_x 95)), 40207#(and (<= 96 main_x) (<= main_x 96)), 40208#(and (<= main_x 97) (<= 97 main_x)), 40209#(and (<= main_x 98) (<= 98 main_x)), 40210#(and (<= 99 main_x) (<= main_x 99)), 40211#(and (<= main_x 100) (<= 100 main_x)), 40212#(and (<= 101 main_x) (<= main_x 101)), 40213#(and (<= main_x 102) (<= 102 main_x)), 40214#(and (<= main_x 103) (<= 103 main_x)), 40215#(and (<= main_x 104) (<= 104 main_x)), 40216#(and (<= main_x 105) (<= 105 main_x)), 40217#(and (<= 106 main_x) (<= main_x 106)), 40218#(and (<= main_x 107) (<= 107 main_x)), 40219#(and (<= 108 main_x) (<= main_x 108)), 40220#(and (<= 109 main_x) (<= main_x 109)), 40221#(and (<= main_x 110) (<= 110 main_x)), 40222#(and (<= main_x 111) (<= 111 main_x)), 40223#(and (<= main_x 112) (<= 112 main_x)), 40224#(and (<= main_x 113) (<= 113 main_x)), 40225#(and (<= 114 main_x) (<= main_x 114)), 40226#(and (<= 115 main_x) (<= main_x 115)), 40227#(and (<= 116 main_x) (<= main_x 116)), 40228#(and (<= 117 main_x) (<= main_x 117)), 40229#(and (<= 118 main_x) (<= main_x 118)), 40230#(and (<= main_x 119) (<= 119 main_x)), 40231#(and (<= main_x 120) (<= 120 main_x)), 40232#(and (<= 121 main_x) (<= main_x 121)), 40233#(and (<= 122 main_x) (<= main_x 122)), 40234#(or (<= (+ main_x 133) 0) (<= 123 main_x)), 40109#true, 40110#false, 40111#(and (<= main_x 0) (<= 0 main_x)), 40112#(and (<= 1 main_x) (<= main_x 1)), 40113#(and (<= 2 main_x) (<= main_x 2)), 40114#(and (<= 3 main_x) (<= main_x 3)), 40115#(and (<= main_x 4) (<= 4 main_x)), 40116#(and (<= 5 main_x) (<= main_x 5)), 40117#(and (<= 6 main_x) (<= main_x 6)), 40118#(and (<= main_x 7) (<= 7 main_x)), 40119#(and (<= main_x 8) (<= 8 main_x)), 40120#(and (<= 9 main_x) (<= main_x 9)), 40121#(and (<= main_x 10) (<= 10 main_x)), 40122#(and (<= 11 main_x) (<= main_x 11)), 40123#(and (<= 12 main_x) (<= main_x 12)), 40124#(and (<= 13 main_x) (<= main_x 13)), 40125#(and (<= 14 main_x) (<= main_x 14)), 40126#(and (<= 15 main_x) (<= main_x 15)), 40127#(and (<= main_x 16) (<= 16 main_x)), 40128#(and (<= 17 main_x) (<= main_x 17)), 40129#(and (<= main_x 18) (<= 18 main_x)), 40130#(and (<= main_x 19) (<= 19 main_x)), 40131#(and (<= 20 main_x) (<= main_x 20)), 40132#(and (<= 21 main_x) (<= main_x 21)), 40133#(and (<= main_x 22) (<= 22 main_x)), 40134#(and (<= 23 main_x) (<= main_x 23)), 40135#(and (<= main_x 24) (<= 24 main_x)), 40136#(and (<= main_x 25) (<= 25 main_x)), 40137#(and (<= main_x 26) (<= 26 main_x)), 40138#(and (<= main_x 27) (<= 27 main_x)), 40139#(and (<= main_x 28) (<= 28 main_x)), 40140#(and (<= main_x 29) (<= 29 main_x)), 40141#(and (<= 30 main_x) (<= main_x 30)), 40142#(and (<= 31 main_x) (<= main_x 31)), 40143#(and (<= 32 main_x) (<= main_x 32)), 40144#(and (<= main_x 33) (<= 33 main_x)), 40145#(and (<= 34 main_x) (<= main_x 34)), 40146#(and (<= main_x 35) (<= 35 main_x)), 40147#(and (<= main_x 36) (<= 36 main_x)), 40148#(and (<= 37 main_x) (<= main_x 37)), 40149#(and (<= 38 main_x) (<= main_x 38)), 40150#(and (<= 39 main_x) (<= main_x 39)), 40151#(and (<= main_x 40) (<= 40 main_x)), 40152#(and (<= 41 main_x) (<= main_x 41)), 40153#(and (<= 42 main_x) (<= main_x 42)), 40154#(and (<= 43 main_x) (<= main_x 43)), 40155#(and (<= main_x 44) (<= 44 main_x)), 40156#(and (<= 45 main_x) (<= main_x 45)), 40157#(and (<= 46 main_x) (<= main_x 46)), 40158#(and (<= 47 main_x) (<= main_x 47)), 40159#(and (<= 48 main_x) (<= main_x 48)), 40160#(and (<= main_x 49) (<= 49 main_x)), 40161#(and (<= main_x 50) (<= 50 main_x)), 40162#(and (<= main_x 51) (<= 51 main_x)), 40163#(and (<= 52 main_x) (<= main_x 52)), 40164#(and (<= main_x 53) (<= 53 main_x)), 40165#(and (<= 54 main_x) (<= main_x 54)), 40166#(and (<= 55 main_x) (<= main_x 55)), 40167#(and (<= main_x 56) (<= 56 main_x)), 40168#(and (<= main_x 57) (<= 57 main_x)), 40169#(and (<= 58 main_x) (<= main_x 58)), 40170#(and (<= 59 main_x) (<= main_x 59)), 40171#(and (<= main_x 60) (<= 60 main_x)), 40172#(and (<= main_x 61) (<= 61 main_x)), 40173#(and (<= main_x 62) (<= 62 main_x)), 40174#(and (<= 63 main_x) (<= main_x 63)), 40175#(and (<= 64 main_x) (<= main_x 64)), 40176#(and (<= main_x 65) (<= 65 main_x)), 40177#(and (<= main_x 66) (<= 66 main_x)), 40178#(and (<= 67 main_x) (<= main_x 67)), 40179#(and (<= main_x 68) (<= 68 main_x)), 40180#(and (<= 69 main_x) (<= main_x 69)), 40181#(and (<= main_x 70) (<= 70 main_x)), 40182#(and (<= 71 main_x) (<= main_x 71)), 40183#(and (<= main_x 72) (<= 72 main_x)), 40184#(and (<= main_x 73) (<= 73 main_x)), 40185#(and (<= 74 main_x) (<= main_x 74)), 40186#(and (<= main_x 75) (<= 75 main_x)), 40187#(and (<= main_x 76) (<= 76 main_x)), 40188#(and (<= 77 main_x) (<= main_x 77)), 40189#(and (<= 78 main_x) (<= main_x 78)), 40190#(and (<= 79 main_x) (<= main_x 79)), 40191#(and (<= main_x 80) (<= 80 main_x))] [2018-07-23 13:52:35,656 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 13:52:35,657 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:52:35,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:52:35,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=15501, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:52:35,658 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 126 states. [2018-07-23 13:52:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:36,755 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2018-07-23 13:52:36,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:52:36,755 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 125 [2018-07-23 13:52:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:36,756 INFO L225 Difference]: With dead ends: 128 [2018-07-23 13:52:36,756 INFO L226 Difference]: Without dead ends: 127 [2018-07-23 13:52:36,757 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=249, Invalid=15501, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:52:36,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2018-07-23 13:52:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2018-07-23 13:52:36,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2018-07-23 13:52:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2018-07-23 13:52:36,762 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 125 [2018-07-23 13:52:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:36,763 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2018-07-23 13:52:36,763 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:52:36,763 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2018-07-23 13:52:36,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-23 13:52:36,763 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:36,764 INFO L357 BasicCegarLoop]: trace histogram [124, 1, 1] [2018-07-23 13:52:36,764 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:36,764 INFO L82 PathProgramCache]: Analyzing trace with hash -396277101, now seen corresponding path program 124 times [2018-07-23 13:52:36,764 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:37,545 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 13:52:37,545 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:37,545 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:52:37,546 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:37,546 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 13:52:37,546 INFO L185 omatonBuilderFactory]: Interpolants [40745#true, 40746#false, 40747#(and (<= main_x 0) (<= 0 main_x)), 40748#(and (<= 1 main_x) (<= main_x 1)), 40749#(and (<= 2 main_x) (<= main_x 2)), 40750#(and (<= 3 main_x) (<= main_x 3)), 40751#(and (<= main_x 4) (<= 4 main_x)), 40752#(and (<= 5 main_x) (<= main_x 5)), 40753#(and (<= 6 main_x) (<= main_x 6)), 40754#(and (<= main_x 7) (<= 7 main_x)), 40755#(and (<= main_x 8) (<= 8 main_x)), 40756#(and (<= 9 main_x) (<= main_x 9)), 40757#(and (<= main_x 10) (<= 10 main_x)), 40758#(and (<= 11 main_x) (<= main_x 11)), 40759#(and (<= 12 main_x) (<= main_x 12)), 40760#(and (<= 13 main_x) (<= main_x 13)), 40761#(and (<= 14 main_x) (<= main_x 14)), 40762#(and (<= 15 main_x) (<= main_x 15)), 40763#(and (<= main_x 16) (<= 16 main_x)), 40764#(and (<= 17 main_x) (<= main_x 17)), 40765#(and (<= main_x 18) (<= 18 main_x)), 40766#(and (<= main_x 19) (<= 19 main_x)), 40767#(and (<= 20 main_x) (<= main_x 20)), 40768#(and (<= 21 main_x) (<= main_x 21)), 40769#(and (<= main_x 22) (<= 22 main_x)), 40770#(and (<= 23 main_x) (<= main_x 23)), 40771#(and (<= main_x 24) (<= 24 main_x)), 40772#(and (<= main_x 25) (<= 25 main_x)), 40773#(and (<= main_x 26) (<= 26 main_x)), 40774#(and (<= main_x 27) (<= 27 main_x)), 40775#(and (<= main_x 28) (<= 28 main_x)), 40776#(and (<= main_x 29) (<= 29 main_x)), 40777#(and (<= 30 main_x) (<= main_x 30)), 40778#(and (<= 31 main_x) (<= main_x 31)), 40779#(and (<= 32 main_x) (<= main_x 32)), 40780#(and (<= main_x 33) (<= 33 main_x)), 40781#(and (<= 34 main_x) (<= main_x 34)), 40782#(and (<= main_x 35) (<= 35 main_x)), 40783#(and (<= main_x 36) (<= 36 main_x)), 40784#(and (<= 37 main_x) (<= main_x 37)), 40785#(and (<= 38 main_x) (<= main_x 38)), 40786#(and (<= 39 main_x) (<= main_x 39)), 40787#(and (<= main_x 40) (<= 40 main_x)), 40788#(and (<= 41 main_x) (<= main_x 41)), 40789#(and (<= 42 main_x) (<= main_x 42)), 40790#(and (<= 43 main_x) (<= main_x 43)), 40791#(and (<= main_x 44) (<= 44 main_x)), 40792#(and (<= 45 main_x) (<= main_x 45)), 40793#(and (<= 46 main_x) (<= main_x 46)), 40794#(and (<= 47 main_x) (<= main_x 47)), 40795#(and (<= 48 main_x) (<= main_x 48)), 40796#(and (<= main_x 49) (<= 49 main_x)), 40797#(and (<= main_x 50) (<= 50 main_x)), 40798#(and (<= main_x 51) (<= 51 main_x)), 40799#(and (<= 52 main_x) (<= main_x 52)), 40800#(and (<= main_x 53) (<= 53 main_x)), 40801#(and (<= 54 main_x) (<= main_x 54)), 40802#(and (<= 55 main_x) (<= main_x 55)), 40803#(and (<= main_x 56) (<= 56 main_x)), 40804#(and (<= main_x 57) (<= 57 main_x)), 40805#(and (<= 58 main_x) (<= main_x 58)), 40806#(and (<= 59 main_x) (<= main_x 59)), 40807#(and (<= main_x 60) (<= 60 main_x)), 40808#(and (<= main_x 61) (<= 61 main_x)), 40809#(and (<= main_x 62) (<= 62 main_x)), 40810#(and (<= 63 main_x) (<= main_x 63)), 40811#(and (<= 64 main_x) (<= main_x 64)), 40812#(and (<= main_x 65) (<= 65 main_x)), 40813#(and (<= main_x 66) (<= 66 main_x)), 40814#(and (<= 67 main_x) (<= main_x 67)), 40815#(and (<= main_x 68) (<= 68 main_x)), 40816#(and (<= 69 main_x) (<= main_x 69)), 40817#(and (<= main_x 70) (<= 70 main_x)), 40818#(and (<= 71 main_x) (<= main_x 71)), 40819#(and (<= main_x 72) (<= 72 main_x)), 40820#(and (<= main_x 73) (<= 73 main_x)), 40821#(and (<= 74 main_x) (<= main_x 74)), 40822#(and (<= main_x 75) (<= 75 main_x)), 40823#(and (<= main_x 76) (<= 76 main_x)), 40824#(and (<= 77 main_x) (<= main_x 77)), 40825#(and (<= 78 main_x) (<= main_x 78)), 40826#(and (<= 79 main_x) (<= main_x 79)), 40827#(and (<= main_x 80) (<= 80 main_x)), 40828#(and (<= 81 main_x) (<= main_x 81)), 40829#(and (<= 82 main_x) (<= main_x 82)), 40830#(and (<= 83 main_x) (<= main_x 83)), 40831#(and (<= main_x 84) (<= 84 main_x)), 40832#(and (<= 85 main_x) (<= main_x 85)), 40833#(and (<= 86 main_x) (<= main_x 86)), 40834#(and (<= 87 main_x) (<= main_x 87)), 40835#(and (<= 88 main_x) (<= main_x 88)), 40836#(and (<= 89 main_x) (<= main_x 89)), 40837#(and (<= 90 main_x) (<= main_x 90)), 40838#(and (<= main_x 91) (<= 91 main_x)), 40839#(and (<= main_x 92) (<= 92 main_x)), 40840#(and (<= 93 main_x) (<= main_x 93)), 40841#(and (<= 94 main_x) (<= main_x 94)), 40842#(and (<= 95 main_x) (<= main_x 95)), 40843#(and (<= 96 main_x) (<= main_x 96)), 40844#(and (<= main_x 97) (<= 97 main_x)), 40845#(and (<= main_x 98) (<= 98 main_x)), 40846#(and (<= 99 main_x) (<= main_x 99)), 40847#(and (<= main_x 100) (<= 100 main_x)), 40848#(and (<= 101 main_x) (<= main_x 101)), 40849#(and (<= main_x 102) (<= 102 main_x)), 40850#(and (<= main_x 103) (<= 103 main_x)), 40851#(and (<= main_x 104) (<= 104 main_x)), 40852#(and (<= main_x 105) (<= 105 main_x)), 40853#(and (<= 106 main_x) (<= main_x 106)), 40854#(and (<= main_x 107) (<= 107 main_x)), 40855#(and (<= 108 main_x) (<= main_x 108)), 40856#(and (<= 109 main_x) (<= main_x 109)), 40857#(and (<= main_x 110) (<= 110 main_x)), 40858#(and (<= main_x 111) (<= 111 main_x)), 40859#(and (<= main_x 112) (<= 112 main_x)), 40860#(and (<= main_x 113) (<= 113 main_x)), 40861#(and (<= 114 main_x) (<= main_x 114)), 40862#(and (<= 115 main_x) (<= main_x 115)), 40863#(and (<= 116 main_x) (<= main_x 116)), 40864#(and (<= 117 main_x) (<= main_x 117)), 40865#(and (<= 118 main_x) (<= main_x 118)), 40866#(and (<= main_x 119) (<= 119 main_x)), 40867#(and (<= main_x 120) (<= 120 main_x)), 40868#(and (<= 121 main_x) (<= main_x 121)), 40869#(and (<= 122 main_x) (<= main_x 122)), 40870#(and (<= main_x 123) (<= 123 main_x)), 40871#(or (<= 124 main_x) (<= (+ main_x 132) 0))] [2018-07-23 13:52:37,547 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 13:52:37,547 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:52:37,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:52:37,548 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=15751, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:52:37,548 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand 127 states. [2018-07-23 13:52:38,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:38,710 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:52:38,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:52:38,710 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 126 [2018-07-23 13:52:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:38,710 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:52:38,711 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:52:38,711 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=15751, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:52:38,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:52:38,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:52:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:52:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:52:38,718 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 126 [2018-07-23 13:52:38,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:38,718 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:52:38,718 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:52:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:52:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:52:38,719 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:38,719 INFO L357 BasicCegarLoop]: trace histogram [125, 1, 1] [2018-07-23 13:52:38,719 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:38,720 INFO L82 PathProgramCache]: Analyzing trace with hash 600311992, now seen corresponding path program 125 times [2018-07-23 13:52:38,720 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:39,504 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 13:52:39,504 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:39,504 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:52:39,504 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:39,505 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 13:52:39,505 INFO L185 omatonBuilderFactory]: Interpolants [41472#(and (<= main_x 84) (<= 84 main_x)), 41473#(and (<= 85 main_x) (<= main_x 85)), 41474#(and (<= 86 main_x) (<= main_x 86)), 41475#(and (<= 87 main_x) (<= main_x 87)), 41476#(and (<= 88 main_x) (<= main_x 88)), 41477#(and (<= 89 main_x) (<= main_x 89)), 41478#(and (<= 90 main_x) (<= main_x 90)), 41479#(and (<= main_x 91) (<= 91 main_x)), 41480#(and (<= main_x 92) (<= 92 main_x)), 41481#(and (<= 93 main_x) (<= main_x 93)), 41482#(and (<= 94 main_x) (<= main_x 94)), 41483#(and (<= 95 main_x) (<= main_x 95)), 41484#(and (<= 96 main_x) (<= main_x 96)), 41485#(and (<= main_x 97) (<= 97 main_x)), 41486#(and (<= main_x 98) (<= 98 main_x)), 41487#(and (<= 99 main_x) (<= main_x 99)), 41488#(and (<= main_x 100) (<= 100 main_x)), 41489#(and (<= 101 main_x) (<= main_x 101)), 41490#(and (<= main_x 102) (<= 102 main_x)), 41491#(and (<= main_x 103) (<= 103 main_x)), 41492#(and (<= main_x 104) (<= 104 main_x)), 41493#(and (<= main_x 105) (<= 105 main_x)), 41494#(and (<= 106 main_x) (<= main_x 106)), 41495#(and (<= main_x 107) (<= 107 main_x)), 41496#(and (<= 108 main_x) (<= main_x 108)), 41497#(and (<= 109 main_x) (<= main_x 109)), 41498#(and (<= main_x 110) (<= 110 main_x)), 41499#(and (<= main_x 111) (<= 111 main_x)), 41500#(and (<= main_x 112) (<= 112 main_x)), 41501#(and (<= main_x 113) (<= 113 main_x)), 41502#(and (<= 114 main_x) (<= main_x 114)), 41503#(and (<= 115 main_x) (<= main_x 115)), 41504#(and (<= 116 main_x) (<= main_x 116)), 41505#(and (<= 117 main_x) (<= main_x 117)), 41506#(and (<= 118 main_x) (<= main_x 118)), 41507#(and (<= main_x 119) (<= 119 main_x)), 41508#(and (<= main_x 120) (<= 120 main_x)), 41509#(and (<= 121 main_x) (<= main_x 121)), 41510#(and (<= 122 main_x) (<= main_x 122)), 41511#(and (<= main_x 123) (<= 123 main_x)), 41512#(and (<= main_x 124) (<= 124 main_x)), 41513#(or (<= 125 main_x) (<= (+ main_x 131) 0)), 41386#true, 41387#false, 41388#(and (<= main_x 0) (<= 0 main_x)), 41389#(and (<= 1 main_x) (<= main_x 1)), 41390#(and (<= 2 main_x) (<= main_x 2)), 41391#(and (<= 3 main_x) (<= main_x 3)), 41392#(and (<= main_x 4) (<= 4 main_x)), 41393#(and (<= 5 main_x) (<= main_x 5)), 41394#(and (<= 6 main_x) (<= main_x 6)), 41395#(and (<= main_x 7) (<= 7 main_x)), 41396#(and (<= main_x 8) (<= 8 main_x)), 41397#(and (<= 9 main_x) (<= main_x 9)), 41398#(and (<= main_x 10) (<= 10 main_x)), 41399#(and (<= 11 main_x) (<= main_x 11)), 41400#(and (<= 12 main_x) (<= main_x 12)), 41401#(and (<= 13 main_x) (<= main_x 13)), 41402#(and (<= 14 main_x) (<= main_x 14)), 41403#(and (<= 15 main_x) (<= main_x 15)), 41404#(and (<= main_x 16) (<= 16 main_x)), 41405#(and (<= 17 main_x) (<= main_x 17)), 41406#(and (<= main_x 18) (<= 18 main_x)), 41407#(and (<= main_x 19) (<= 19 main_x)), 41408#(and (<= 20 main_x) (<= main_x 20)), 41409#(and (<= 21 main_x) (<= main_x 21)), 41410#(and (<= main_x 22) (<= 22 main_x)), 41411#(and (<= 23 main_x) (<= main_x 23)), 41412#(and (<= main_x 24) (<= 24 main_x)), 41413#(and (<= main_x 25) (<= 25 main_x)), 41414#(and (<= main_x 26) (<= 26 main_x)), 41415#(and (<= main_x 27) (<= 27 main_x)), 41416#(and (<= main_x 28) (<= 28 main_x)), 41417#(and (<= main_x 29) (<= 29 main_x)), 41418#(and (<= 30 main_x) (<= main_x 30)), 41419#(and (<= 31 main_x) (<= main_x 31)), 41420#(and (<= 32 main_x) (<= main_x 32)), 41421#(and (<= main_x 33) (<= 33 main_x)), 41422#(and (<= 34 main_x) (<= main_x 34)), 41423#(and (<= main_x 35) (<= 35 main_x)), 41424#(and (<= main_x 36) (<= 36 main_x)), 41425#(and (<= 37 main_x) (<= main_x 37)), 41426#(and (<= 38 main_x) (<= main_x 38)), 41427#(and (<= 39 main_x) (<= main_x 39)), 41428#(and (<= main_x 40) (<= 40 main_x)), 41429#(and (<= 41 main_x) (<= main_x 41)), 41430#(and (<= 42 main_x) (<= main_x 42)), 41431#(and (<= 43 main_x) (<= main_x 43)), 41432#(and (<= main_x 44) (<= 44 main_x)), 41433#(and (<= 45 main_x) (<= main_x 45)), 41434#(and (<= 46 main_x) (<= main_x 46)), 41435#(and (<= 47 main_x) (<= main_x 47)), 41436#(and (<= 48 main_x) (<= main_x 48)), 41437#(and (<= main_x 49) (<= 49 main_x)), 41438#(and (<= main_x 50) (<= 50 main_x)), 41439#(and (<= main_x 51) (<= 51 main_x)), 41440#(and (<= 52 main_x) (<= main_x 52)), 41441#(and (<= main_x 53) (<= 53 main_x)), 41442#(and (<= 54 main_x) (<= main_x 54)), 41443#(and (<= 55 main_x) (<= main_x 55)), 41444#(and (<= main_x 56) (<= 56 main_x)), 41445#(and (<= main_x 57) (<= 57 main_x)), 41446#(and (<= 58 main_x) (<= main_x 58)), 41447#(and (<= 59 main_x) (<= main_x 59)), 41448#(and (<= main_x 60) (<= 60 main_x)), 41449#(and (<= main_x 61) (<= 61 main_x)), 41450#(and (<= main_x 62) (<= 62 main_x)), 41451#(and (<= 63 main_x) (<= main_x 63)), 41452#(and (<= 64 main_x) (<= main_x 64)), 41453#(and (<= main_x 65) (<= 65 main_x)), 41454#(and (<= main_x 66) (<= 66 main_x)), 41455#(and (<= 67 main_x) (<= main_x 67)), 41456#(and (<= main_x 68) (<= 68 main_x)), 41457#(and (<= 69 main_x) (<= main_x 69)), 41458#(and (<= main_x 70) (<= 70 main_x)), 41459#(and (<= 71 main_x) (<= main_x 71)), 41460#(and (<= main_x 72) (<= 72 main_x)), 41461#(and (<= main_x 73) (<= 73 main_x)), 41462#(and (<= 74 main_x) (<= main_x 74)), 41463#(and (<= main_x 75) (<= 75 main_x)), 41464#(and (<= main_x 76) (<= 76 main_x)), 41465#(and (<= 77 main_x) (<= main_x 77)), 41466#(and (<= 78 main_x) (<= main_x 78)), 41467#(and (<= 79 main_x) (<= main_x 79)), 41468#(and (<= main_x 80) (<= 80 main_x)), 41469#(and (<= 81 main_x) (<= main_x 81)), 41470#(and (<= 82 main_x) (<= main_x 82)), 41471#(and (<= 83 main_x) (<= main_x 83))] [2018-07-23 13:52:39,505 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 13:52:39,506 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:52:39,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:52:39,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=16003, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:52:39,507 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 128 states. [2018-07-23 13:52:40,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:40,584 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2018-07-23 13:52:40,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:52:40,585 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 127 [2018-07-23 13:52:40,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:40,585 INFO L225 Difference]: With dead ends: 130 [2018-07-23 13:52:40,585 INFO L226 Difference]: Without dead ends: 129 [2018-07-23 13:52:40,586 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=253, Invalid=16003, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:52:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-07-23 13:52:40,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-07-23 13:52:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-07-23 13:52:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2018-07-23 13:52:40,592 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 127 [2018-07-23 13:52:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:40,592 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2018-07-23 13:52:40,592 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:52:40,593 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2018-07-23 13:52:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-23 13:52:40,593 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:40,593 INFO L357 BasicCegarLoop]: trace histogram [126, 1, 1] [2018-07-23 13:52:40,593 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:40,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1429802803, now seen corresponding path program 126 times [2018-07-23 13:52:40,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,430 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 13:52:41,430 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,430 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:52:41,430 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,430 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 13:52:41,431 INFO L185 omatonBuilderFactory]: Interpolants [42032#true, 42033#false, 42034#(and (<= main_x 0) (<= 0 main_x)), 42035#(and (<= 1 main_x) (<= main_x 1)), 42036#(and (<= 2 main_x) (<= main_x 2)), 42037#(and (<= 3 main_x) (<= main_x 3)), 42038#(and (<= main_x 4) (<= 4 main_x)), 42039#(and (<= 5 main_x) (<= main_x 5)), 42040#(and (<= 6 main_x) (<= main_x 6)), 42041#(and (<= main_x 7) (<= 7 main_x)), 42042#(and (<= main_x 8) (<= 8 main_x)), 42043#(and (<= 9 main_x) (<= main_x 9)), 42044#(and (<= main_x 10) (<= 10 main_x)), 42045#(and (<= 11 main_x) (<= main_x 11)), 42046#(and (<= 12 main_x) (<= main_x 12)), 42047#(and (<= 13 main_x) (<= main_x 13)), 42048#(and (<= 14 main_x) (<= main_x 14)), 42049#(and (<= 15 main_x) (<= main_x 15)), 42050#(and (<= main_x 16) (<= 16 main_x)), 42051#(and (<= 17 main_x) (<= main_x 17)), 42052#(and (<= main_x 18) (<= 18 main_x)), 42053#(and (<= main_x 19) (<= 19 main_x)), 42054#(and (<= 20 main_x) (<= main_x 20)), 42055#(and (<= 21 main_x) (<= main_x 21)), 42056#(and (<= main_x 22) (<= 22 main_x)), 42057#(and (<= 23 main_x) (<= main_x 23)), 42058#(and (<= main_x 24) (<= 24 main_x)), 42059#(and (<= main_x 25) (<= 25 main_x)), 42060#(and (<= main_x 26) (<= 26 main_x)), 42061#(and (<= main_x 27) (<= 27 main_x)), 42062#(and (<= main_x 28) (<= 28 main_x)), 42063#(and (<= main_x 29) (<= 29 main_x)), 42064#(and (<= 30 main_x) (<= main_x 30)), 42065#(and (<= 31 main_x) (<= main_x 31)), 42066#(and (<= 32 main_x) (<= main_x 32)), 42067#(and (<= main_x 33) (<= 33 main_x)), 42068#(and (<= 34 main_x) (<= main_x 34)), 42069#(and (<= main_x 35) (<= 35 main_x)), 42070#(and (<= main_x 36) (<= 36 main_x)), 42071#(and (<= 37 main_x) (<= main_x 37)), 42072#(and (<= 38 main_x) (<= main_x 38)), 42073#(and (<= 39 main_x) (<= main_x 39)), 42074#(and (<= main_x 40) (<= 40 main_x)), 42075#(and (<= 41 main_x) (<= main_x 41)), 42076#(and (<= 42 main_x) (<= main_x 42)), 42077#(and (<= 43 main_x) (<= main_x 43)), 42078#(and (<= main_x 44) (<= 44 main_x)), 42079#(and (<= 45 main_x) (<= main_x 45)), 42080#(and (<= 46 main_x) (<= main_x 46)), 42081#(and (<= 47 main_x) (<= main_x 47)), 42082#(and (<= 48 main_x) (<= main_x 48)), 42083#(and (<= main_x 49) (<= 49 main_x)), 42084#(and (<= main_x 50) (<= 50 main_x)), 42085#(and (<= main_x 51) (<= 51 main_x)), 42086#(and (<= 52 main_x) (<= main_x 52)), 42087#(and (<= main_x 53) (<= 53 main_x)), 42088#(and (<= 54 main_x) (<= main_x 54)), 42089#(and (<= 55 main_x) (<= main_x 55)), 42090#(and (<= main_x 56) (<= 56 main_x)), 42091#(and (<= main_x 57) (<= 57 main_x)), 42092#(and (<= 58 main_x) (<= main_x 58)), 42093#(and (<= 59 main_x) (<= main_x 59)), 42094#(and (<= main_x 60) (<= 60 main_x)), 42095#(and (<= main_x 61) (<= 61 main_x)), 42096#(and (<= main_x 62) (<= 62 main_x)), 42097#(and (<= 63 main_x) (<= main_x 63)), 42098#(and (<= 64 main_x) (<= main_x 64)), 42099#(and (<= main_x 65) (<= 65 main_x)), 42100#(and (<= main_x 66) (<= 66 main_x)), 42101#(and (<= 67 main_x) (<= main_x 67)), 42102#(and (<= main_x 68) (<= 68 main_x)), 42103#(and (<= 69 main_x) (<= main_x 69)), 42104#(and (<= main_x 70) (<= 70 main_x)), 42105#(and (<= 71 main_x) (<= main_x 71)), 42106#(and (<= main_x 72) (<= 72 main_x)), 42107#(and (<= main_x 73) (<= 73 main_x)), 42108#(and (<= 74 main_x) (<= main_x 74)), 42109#(and (<= main_x 75) (<= 75 main_x)), 42110#(and (<= main_x 76) (<= 76 main_x)), 42111#(and (<= 77 main_x) (<= main_x 77)), 42112#(and (<= 78 main_x) (<= main_x 78)), 42113#(and (<= 79 main_x) (<= main_x 79)), 42114#(and (<= main_x 80) (<= 80 main_x)), 42115#(and (<= 81 main_x) (<= main_x 81)), 42116#(and (<= 82 main_x) (<= main_x 82)), 42117#(and (<= 83 main_x) (<= main_x 83)), 42118#(and (<= main_x 84) (<= 84 main_x)), 42119#(and (<= 85 main_x) (<= main_x 85)), 42120#(and (<= 86 main_x) (<= main_x 86)), 42121#(and (<= 87 main_x) (<= main_x 87)), 42122#(and (<= 88 main_x) (<= main_x 88)), 42123#(and (<= 89 main_x) (<= main_x 89)), 42124#(and (<= 90 main_x) (<= main_x 90)), 42125#(and (<= main_x 91) (<= 91 main_x)), 42126#(and (<= main_x 92) (<= 92 main_x)), 42127#(and (<= 93 main_x) (<= main_x 93)), 42128#(and (<= 94 main_x) (<= main_x 94)), 42129#(and (<= 95 main_x) (<= main_x 95)), 42130#(and (<= 96 main_x) (<= main_x 96)), 42131#(and (<= main_x 97) (<= 97 main_x)), 42132#(and (<= main_x 98) (<= 98 main_x)), 42133#(and (<= 99 main_x) (<= main_x 99)), 42134#(and (<= main_x 100) (<= 100 main_x)), 42135#(and (<= 101 main_x) (<= main_x 101)), 42136#(and (<= main_x 102) (<= 102 main_x)), 42137#(and (<= main_x 103) (<= 103 main_x)), 42138#(and (<= main_x 104) (<= 104 main_x)), 42139#(and (<= main_x 105) (<= 105 main_x)), 42140#(and (<= 106 main_x) (<= main_x 106)), 42141#(and (<= main_x 107) (<= 107 main_x)), 42142#(and (<= 108 main_x) (<= main_x 108)), 42143#(and (<= 109 main_x) (<= main_x 109)), 42144#(and (<= main_x 110) (<= 110 main_x)), 42145#(and (<= main_x 111) (<= 111 main_x)), 42146#(and (<= main_x 112) (<= 112 main_x)), 42147#(and (<= main_x 113) (<= 113 main_x)), 42148#(and (<= 114 main_x) (<= main_x 114)), 42149#(and (<= 115 main_x) (<= main_x 115)), 42150#(and (<= 116 main_x) (<= main_x 116)), 42151#(and (<= 117 main_x) (<= main_x 117)), 42152#(and (<= 118 main_x) (<= main_x 118)), 42153#(and (<= main_x 119) (<= 119 main_x)), 42154#(and (<= main_x 120) (<= 120 main_x)), 42155#(and (<= 121 main_x) (<= main_x 121)), 42156#(and (<= 122 main_x) (<= main_x 122)), 42157#(and (<= main_x 123) (<= 123 main_x)), 42158#(and (<= main_x 124) (<= 124 main_x)), 42159#(and (<= main_x 125) (<= 125 main_x)), 42160#(or (<= 126 main_x) (<= (+ main_x 130) 0))] [2018-07-23 13:52:41,431 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 13:52:41,431 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:52:41,431 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:52:41,432 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=16257, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:52:41,432 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand 129 states. [2018-07-23 13:52:42,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:42,538 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:52:42,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:52:42,538 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 128 [2018-07-23 13:52:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:42,538 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:52:42,539 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:52:42,540 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=255, Invalid=16257, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:52:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:52:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:52:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:52:42,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:52:42,545 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 128 [2018-07-23 13:52:42,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:42,545 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:52:42,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:52:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:52:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:52:42,545 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:42,546 INFO L357 BasicCegarLoop]: trace histogram [127, 1, 1] [2018-07-23 13:52:42,546 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:42,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1374214168, now seen corresponding path program 127 times [2018-07-23 13:52:42,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:43,423 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 13:52:43,424 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:43,424 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:52:43,424 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:43,424 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 13:52:43,425 INFO L185 omatonBuilderFactory]: Interpolants [42752#(and (<= 67 main_x) (<= main_x 67)), 42753#(and (<= main_x 68) (<= 68 main_x)), 42754#(and (<= 69 main_x) (<= main_x 69)), 42755#(and (<= main_x 70) (<= 70 main_x)), 42756#(and (<= 71 main_x) (<= main_x 71)), 42757#(and (<= main_x 72) (<= 72 main_x)), 42758#(and (<= main_x 73) (<= 73 main_x)), 42759#(and (<= 74 main_x) (<= main_x 74)), 42760#(and (<= main_x 75) (<= 75 main_x)), 42761#(and (<= main_x 76) (<= 76 main_x)), 42762#(and (<= 77 main_x) (<= main_x 77)), 42763#(and (<= 78 main_x) (<= main_x 78)), 42764#(and (<= 79 main_x) (<= main_x 79)), 42765#(and (<= main_x 80) (<= 80 main_x)), 42766#(and (<= 81 main_x) (<= main_x 81)), 42767#(and (<= 82 main_x) (<= main_x 82)), 42768#(and (<= 83 main_x) (<= main_x 83)), 42769#(and (<= main_x 84) (<= 84 main_x)), 42770#(and (<= 85 main_x) (<= main_x 85)), 42771#(and (<= 86 main_x) (<= main_x 86)), 42772#(and (<= 87 main_x) (<= main_x 87)), 42773#(and (<= 88 main_x) (<= main_x 88)), 42774#(and (<= 89 main_x) (<= main_x 89)), 42775#(and (<= 90 main_x) (<= main_x 90)), 42776#(and (<= main_x 91) (<= 91 main_x)), 42777#(and (<= main_x 92) (<= 92 main_x)), 42778#(and (<= 93 main_x) (<= main_x 93)), 42779#(and (<= 94 main_x) (<= main_x 94)), 42780#(and (<= 95 main_x) (<= main_x 95)), 42781#(and (<= 96 main_x) (<= main_x 96)), 42782#(and (<= main_x 97) (<= 97 main_x)), 42783#(and (<= main_x 98) (<= 98 main_x)), 42784#(and (<= 99 main_x) (<= main_x 99)), 42785#(and (<= main_x 100) (<= 100 main_x)), 42786#(and (<= 101 main_x) (<= main_x 101)), 42787#(and (<= main_x 102) (<= 102 main_x)), 42788#(and (<= main_x 103) (<= 103 main_x)), 42789#(and (<= main_x 104) (<= 104 main_x)), 42790#(and (<= main_x 105) (<= 105 main_x)), 42791#(and (<= 106 main_x) (<= main_x 106)), 42792#(and (<= main_x 107) (<= 107 main_x)), 42793#(and (<= 108 main_x) (<= main_x 108)), 42794#(and (<= 109 main_x) (<= main_x 109)), 42795#(and (<= main_x 110) (<= 110 main_x)), 42796#(and (<= main_x 111) (<= 111 main_x)), 42797#(and (<= main_x 112) (<= 112 main_x)), 42798#(and (<= main_x 113) (<= 113 main_x)), 42799#(and (<= 114 main_x) (<= main_x 114)), 42800#(and (<= 115 main_x) (<= main_x 115)), 42801#(and (<= 116 main_x) (<= main_x 116)), 42802#(and (<= 117 main_x) (<= main_x 117)), 42803#(and (<= 118 main_x) (<= main_x 118)), 42804#(and (<= main_x 119) (<= 119 main_x)), 42805#(and (<= main_x 120) (<= 120 main_x)), 42806#(and (<= 121 main_x) (<= main_x 121)), 42807#(and (<= 122 main_x) (<= main_x 122)), 42808#(and (<= main_x 123) (<= 123 main_x)), 42809#(and (<= main_x 124) (<= 124 main_x)), 42810#(and (<= main_x 125) (<= 125 main_x)), 42811#(and (<= 126 main_x) (<= main_x 126)), 42812#(or (<= (+ main_x 129) 0) (<= 127 main_x)), 42683#true, 42684#false, 42685#(and (<= main_x 0) (<= 0 main_x)), 42686#(and (<= 1 main_x) (<= main_x 1)), 42687#(and (<= 2 main_x) (<= main_x 2)), 42688#(and (<= 3 main_x) (<= main_x 3)), 42689#(and (<= main_x 4) (<= 4 main_x)), 42690#(and (<= 5 main_x) (<= main_x 5)), 42691#(and (<= 6 main_x) (<= main_x 6)), 42692#(and (<= main_x 7) (<= 7 main_x)), 42693#(and (<= main_x 8) (<= 8 main_x)), 42694#(and (<= 9 main_x) (<= main_x 9)), 42695#(and (<= main_x 10) (<= 10 main_x)), 42696#(and (<= 11 main_x) (<= main_x 11)), 42697#(and (<= 12 main_x) (<= main_x 12)), 42698#(and (<= 13 main_x) (<= main_x 13)), 42699#(and (<= 14 main_x) (<= main_x 14)), 42700#(and (<= 15 main_x) (<= main_x 15)), 42701#(and (<= main_x 16) (<= 16 main_x)), 42702#(and (<= 17 main_x) (<= main_x 17)), 42703#(and (<= main_x 18) (<= 18 main_x)), 42704#(and (<= main_x 19) (<= 19 main_x)), 42705#(and (<= 20 main_x) (<= main_x 20)), 42706#(and (<= 21 main_x) (<= main_x 21)), 42707#(and (<= main_x 22) (<= 22 main_x)), 42708#(and (<= 23 main_x) (<= main_x 23)), 42709#(and (<= main_x 24) (<= 24 main_x)), 42710#(and (<= main_x 25) (<= 25 main_x)), 42711#(and (<= main_x 26) (<= 26 main_x)), 42712#(and (<= main_x 27) (<= 27 main_x)), 42713#(and (<= main_x 28) (<= 28 main_x)), 42714#(and (<= main_x 29) (<= 29 main_x)), 42715#(and (<= 30 main_x) (<= main_x 30)), 42716#(and (<= 31 main_x) (<= main_x 31)), 42717#(and (<= 32 main_x) (<= main_x 32)), 42718#(and (<= main_x 33) (<= 33 main_x)), 42719#(and (<= 34 main_x) (<= main_x 34)), 42720#(and (<= main_x 35) (<= 35 main_x)), 42721#(and (<= main_x 36) (<= 36 main_x)), 42722#(and (<= 37 main_x) (<= main_x 37)), 42723#(and (<= 38 main_x) (<= main_x 38)), 42724#(and (<= 39 main_x) (<= main_x 39)), 42725#(and (<= main_x 40) (<= 40 main_x)), 42726#(and (<= 41 main_x) (<= main_x 41)), 42727#(and (<= 42 main_x) (<= main_x 42)), 42728#(and (<= 43 main_x) (<= main_x 43)), 42729#(and (<= main_x 44) (<= 44 main_x)), 42730#(and (<= 45 main_x) (<= main_x 45)), 42731#(and (<= 46 main_x) (<= main_x 46)), 42732#(and (<= 47 main_x) (<= main_x 47)), 42733#(and (<= 48 main_x) (<= main_x 48)), 42734#(and (<= main_x 49) (<= 49 main_x)), 42735#(and (<= main_x 50) (<= 50 main_x)), 42736#(and (<= main_x 51) (<= 51 main_x)), 42737#(and (<= 52 main_x) (<= main_x 52)), 42738#(and (<= main_x 53) (<= 53 main_x)), 42739#(and (<= 54 main_x) (<= main_x 54)), 42740#(and (<= 55 main_x) (<= main_x 55)), 42741#(and (<= main_x 56) (<= 56 main_x)), 42742#(and (<= main_x 57) (<= 57 main_x)), 42743#(and (<= 58 main_x) (<= main_x 58)), 42744#(and (<= 59 main_x) (<= main_x 59)), 42745#(and (<= main_x 60) (<= 60 main_x)), 42746#(and (<= main_x 61) (<= 61 main_x)), 42747#(and (<= main_x 62) (<= 62 main_x)), 42748#(and (<= 63 main_x) (<= main_x 63)), 42749#(and (<= 64 main_x) (<= main_x 64)), 42750#(and (<= main_x 65) (<= 65 main_x)), 42751#(and (<= main_x 66) (<= 66 main_x))] [2018-07-23 13:52:43,425 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 13:52:43,426 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:52:43,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:52:43,427 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=16513, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:52:43,427 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 130 states. [2018-07-23 13:52:44,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:44,550 INFO L93 Difference]: Finished difference Result 132 states and 132 transitions. [2018-07-23 13:52:44,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:52:44,550 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 129 [2018-07-23 13:52:44,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:44,551 INFO L225 Difference]: With dead ends: 132 [2018-07-23 13:52:44,551 INFO L226 Difference]: Without dead ends: 131 [2018-07-23 13:52:44,552 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=16513, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:52:44,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-07-23 13:52:44,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-07-23 13:52:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-07-23 13:52:44,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2018-07-23 13:52:44,558 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 129 [2018-07-23 13:52:44,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:44,559 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2018-07-23 13:52:44,559 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:52:44,559 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2018-07-23 13:52:44,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-23 13:52:44,560 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:44,560 INFO L357 BasicCegarLoop]: trace histogram [128, 1, 1] [2018-07-23 13:52:44,560 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:44,560 INFO L82 PathProgramCache]: Analyzing trace with hash -349033517, now seen corresponding path program 128 times [2018-07-23 13:52:44,560 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:45,409 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 13:52:45,410 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:45,410 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:52:45,410 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:45,410 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 13:52:45,411 INFO L185 omatonBuilderFactory]: Interpolants [43339#true, 43340#false, 43341#(and (<= main_x 0) (<= 0 main_x)), 43342#(and (<= 1 main_x) (<= main_x 1)), 43343#(and (<= 2 main_x) (<= main_x 2)), 43344#(and (<= 3 main_x) (<= main_x 3)), 43345#(and (<= main_x 4) (<= 4 main_x)), 43346#(and (<= 5 main_x) (<= main_x 5)), 43347#(and (<= 6 main_x) (<= main_x 6)), 43348#(and (<= main_x 7) (<= 7 main_x)), 43349#(and (<= main_x 8) (<= 8 main_x)), 43350#(and (<= 9 main_x) (<= main_x 9)), 43351#(and (<= main_x 10) (<= 10 main_x)), 43352#(and (<= 11 main_x) (<= main_x 11)), 43353#(and (<= 12 main_x) (<= main_x 12)), 43354#(and (<= 13 main_x) (<= main_x 13)), 43355#(and (<= 14 main_x) (<= main_x 14)), 43356#(and (<= 15 main_x) (<= main_x 15)), 43357#(and (<= main_x 16) (<= 16 main_x)), 43358#(and (<= 17 main_x) (<= main_x 17)), 43359#(and (<= main_x 18) (<= 18 main_x)), 43360#(and (<= main_x 19) (<= 19 main_x)), 43361#(and (<= 20 main_x) (<= main_x 20)), 43362#(and (<= 21 main_x) (<= main_x 21)), 43363#(and (<= main_x 22) (<= 22 main_x)), 43364#(and (<= 23 main_x) (<= main_x 23)), 43365#(and (<= main_x 24) (<= 24 main_x)), 43366#(and (<= main_x 25) (<= 25 main_x)), 43367#(and (<= main_x 26) (<= 26 main_x)), 43368#(and (<= main_x 27) (<= 27 main_x)), 43369#(and (<= main_x 28) (<= 28 main_x)), 43370#(and (<= main_x 29) (<= 29 main_x)), 43371#(and (<= 30 main_x) (<= main_x 30)), 43372#(and (<= 31 main_x) (<= main_x 31)), 43373#(and (<= 32 main_x) (<= main_x 32)), 43374#(and (<= main_x 33) (<= 33 main_x)), 43375#(and (<= 34 main_x) (<= main_x 34)), 43376#(and (<= main_x 35) (<= 35 main_x)), 43377#(and (<= main_x 36) (<= 36 main_x)), 43378#(and (<= 37 main_x) (<= main_x 37)), 43379#(and (<= 38 main_x) (<= main_x 38)), 43380#(and (<= 39 main_x) (<= main_x 39)), 43381#(and (<= main_x 40) (<= 40 main_x)), 43382#(and (<= 41 main_x) (<= main_x 41)), 43383#(and (<= 42 main_x) (<= main_x 42)), 43384#(and (<= 43 main_x) (<= main_x 43)), 43385#(and (<= main_x 44) (<= 44 main_x)), 43386#(and (<= 45 main_x) (<= main_x 45)), 43387#(and (<= 46 main_x) (<= main_x 46)), 43388#(and (<= 47 main_x) (<= main_x 47)), 43389#(and (<= 48 main_x) (<= main_x 48)), 43390#(and (<= main_x 49) (<= 49 main_x)), 43391#(and (<= main_x 50) (<= 50 main_x)), 43392#(and (<= main_x 51) (<= 51 main_x)), 43393#(and (<= 52 main_x) (<= main_x 52)), 43394#(and (<= main_x 53) (<= 53 main_x)), 43395#(and (<= 54 main_x) (<= main_x 54)), 43396#(and (<= 55 main_x) (<= main_x 55)), 43397#(and (<= main_x 56) (<= 56 main_x)), 43398#(and (<= main_x 57) (<= 57 main_x)), 43399#(and (<= 58 main_x) (<= main_x 58)), 43400#(and (<= 59 main_x) (<= main_x 59)), 43401#(and (<= main_x 60) (<= 60 main_x)), 43402#(and (<= main_x 61) (<= 61 main_x)), 43403#(and (<= main_x 62) (<= 62 main_x)), 43404#(and (<= 63 main_x) (<= main_x 63)), 43405#(and (<= 64 main_x) (<= main_x 64)), 43406#(and (<= main_x 65) (<= 65 main_x)), 43407#(and (<= main_x 66) (<= 66 main_x)), 43408#(and (<= 67 main_x) (<= main_x 67)), 43409#(and (<= main_x 68) (<= 68 main_x)), 43410#(and (<= 69 main_x) (<= main_x 69)), 43411#(and (<= main_x 70) (<= 70 main_x)), 43412#(and (<= 71 main_x) (<= main_x 71)), 43413#(and (<= main_x 72) (<= 72 main_x)), 43414#(and (<= main_x 73) (<= 73 main_x)), 43415#(and (<= 74 main_x) (<= main_x 74)), 43416#(and (<= main_x 75) (<= 75 main_x)), 43417#(and (<= main_x 76) (<= 76 main_x)), 43418#(and (<= 77 main_x) (<= main_x 77)), 43419#(and (<= 78 main_x) (<= main_x 78)), 43420#(and (<= 79 main_x) (<= main_x 79)), 43421#(and (<= main_x 80) (<= 80 main_x)), 43422#(and (<= 81 main_x) (<= main_x 81)), 43423#(and (<= 82 main_x) (<= main_x 82)), 43424#(and (<= 83 main_x) (<= main_x 83)), 43425#(and (<= main_x 84) (<= 84 main_x)), 43426#(and (<= 85 main_x) (<= main_x 85)), 43427#(and (<= 86 main_x) (<= main_x 86)), 43428#(and (<= 87 main_x) (<= main_x 87)), 43429#(and (<= 88 main_x) (<= main_x 88)), 43430#(and (<= 89 main_x) (<= main_x 89)), 43431#(and (<= 90 main_x) (<= main_x 90)), 43432#(and (<= main_x 91) (<= 91 main_x)), 43433#(and (<= main_x 92) (<= 92 main_x)), 43434#(and (<= 93 main_x) (<= main_x 93)), 43435#(and (<= 94 main_x) (<= main_x 94)), 43436#(and (<= 95 main_x) (<= main_x 95)), 43437#(and (<= 96 main_x) (<= main_x 96)), 43438#(and (<= main_x 97) (<= 97 main_x)), 43439#(and (<= main_x 98) (<= 98 main_x)), 43440#(and (<= 99 main_x) (<= main_x 99)), 43441#(and (<= main_x 100) (<= 100 main_x)), 43442#(and (<= 101 main_x) (<= main_x 101)), 43443#(and (<= main_x 102) (<= 102 main_x)), 43444#(and (<= main_x 103) (<= 103 main_x)), 43445#(and (<= main_x 104) (<= 104 main_x)), 43446#(and (<= main_x 105) (<= 105 main_x)), 43447#(and (<= 106 main_x) (<= main_x 106)), 43448#(and (<= main_x 107) (<= 107 main_x)), 43449#(and (<= 108 main_x) (<= main_x 108)), 43450#(and (<= 109 main_x) (<= main_x 109)), 43451#(and (<= main_x 110) (<= 110 main_x)), 43452#(and (<= main_x 111) (<= 111 main_x)), 43453#(and (<= main_x 112) (<= 112 main_x)), 43454#(and (<= main_x 113) (<= 113 main_x)), 43455#(and (<= 114 main_x) (<= main_x 114)), 43456#(and (<= 115 main_x) (<= main_x 115)), 43457#(and (<= 116 main_x) (<= main_x 116)), 43458#(and (<= 117 main_x) (<= main_x 117)), 43459#(and (<= 118 main_x) (<= main_x 118)), 43460#(and (<= main_x 119) (<= 119 main_x)), 43461#(and (<= main_x 120) (<= 120 main_x)), 43462#(and (<= 121 main_x) (<= main_x 121)), 43463#(and (<= 122 main_x) (<= main_x 122)), 43464#(and (<= main_x 123) (<= 123 main_x)), 43465#(and (<= main_x 124) (<= 124 main_x)), 43466#(and (<= main_x 125) (<= 125 main_x)), 43467#(and (<= 126 main_x) (<= main_x 126)), 43468#(and (<= main_x 127) (<= 127 main_x)), 43469#(or (<= (+ main_x 128) 0) (<= 128 main_x))] [2018-07-23 13:52:45,411 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 13:52:45,411 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:52:45,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:52:45,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=16771, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:52:45,413 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand 131 states. [2018-07-23 13:52:46,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:46,564 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:52:46,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:52:46,564 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 130 [2018-07-23 13:52:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:46,565 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:52:46,565 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:52:46,566 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=259, Invalid=16771, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:52:46,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:52:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:52:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:52:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:52:46,571 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 130 [2018-07-23 13:52:46,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:46,572 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:52:46,572 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:52:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:52:46,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:52:46,572 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:46,572 INFO L357 BasicCegarLoop]: trace histogram [129, 1, 1] [2018-07-23 13:52:46,572 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:46,572 INFO L82 PathProgramCache]: Analyzing trace with hash 2064863096, now seen corresponding path program 129 times [2018-07-23 13:52:46,573 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:47,468 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 13:52:47,468 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:47,468 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:52:47,468 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:47,469 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 13:52:47,469 INFO L185 omatonBuilderFactory]: Interpolants [44032#(and (<= 30 main_x) (<= main_x 30)), 44033#(and (<= 31 main_x) (<= main_x 31)), 44034#(and (<= 32 main_x) (<= main_x 32)), 44035#(and (<= main_x 33) (<= 33 main_x)), 44036#(and (<= 34 main_x) (<= main_x 34)), 44037#(and (<= main_x 35) (<= 35 main_x)), 44038#(and (<= main_x 36) (<= 36 main_x)), 44039#(and (<= 37 main_x) (<= main_x 37)), 44040#(and (<= 38 main_x) (<= main_x 38)), 44041#(and (<= 39 main_x) (<= main_x 39)), 44042#(and (<= main_x 40) (<= 40 main_x)), 44043#(and (<= 41 main_x) (<= main_x 41)), 44044#(and (<= 42 main_x) (<= main_x 42)), 44045#(and (<= 43 main_x) (<= main_x 43)), 44046#(and (<= main_x 44) (<= 44 main_x)), 44047#(and (<= 45 main_x) (<= main_x 45)), 44048#(and (<= 46 main_x) (<= main_x 46)), 44049#(and (<= 47 main_x) (<= main_x 47)), 44050#(and (<= 48 main_x) (<= main_x 48)), 44051#(and (<= main_x 49) (<= 49 main_x)), 44052#(and (<= main_x 50) (<= 50 main_x)), 44053#(and (<= main_x 51) (<= 51 main_x)), 44054#(and (<= 52 main_x) (<= main_x 52)), 44055#(and (<= main_x 53) (<= 53 main_x)), 44056#(and (<= 54 main_x) (<= main_x 54)), 44057#(and (<= 55 main_x) (<= main_x 55)), 44058#(and (<= main_x 56) (<= 56 main_x)), 44059#(and (<= main_x 57) (<= 57 main_x)), 44060#(and (<= 58 main_x) (<= main_x 58)), 44061#(and (<= 59 main_x) (<= main_x 59)), 44062#(and (<= main_x 60) (<= 60 main_x)), 44063#(and (<= main_x 61) (<= 61 main_x)), 44064#(and (<= main_x 62) (<= 62 main_x)), 44065#(and (<= 63 main_x) (<= main_x 63)), 44066#(and (<= 64 main_x) (<= main_x 64)), 44067#(and (<= main_x 65) (<= 65 main_x)), 44068#(and (<= main_x 66) (<= 66 main_x)), 44069#(and (<= 67 main_x) (<= main_x 67)), 44070#(and (<= main_x 68) (<= 68 main_x)), 44071#(and (<= 69 main_x) (<= main_x 69)), 44072#(and (<= main_x 70) (<= 70 main_x)), 44073#(and (<= 71 main_x) (<= main_x 71)), 44074#(and (<= main_x 72) (<= 72 main_x)), 44075#(and (<= main_x 73) (<= 73 main_x)), 44076#(and (<= 74 main_x) (<= main_x 74)), 44077#(and (<= main_x 75) (<= 75 main_x)), 44078#(and (<= main_x 76) (<= 76 main_x)), 44079#(and (<= 77 main_x) (<= main_x 77)), 44080#(and (<= 78 main_x) (<= main_x 78)), 44081#(and (<= 79 main_x) (<= main_x 79)), 44082#(and (<= main_x 80) (<= 80 main_x)), 44083#(and (<= 81 main_x) (<= main_x 81)), 44084#(and (<= 82 main_x) (<= main_x 82)), 44085#(and (<= 83 main_x) (<= main_x 83)), 44086#(and (<= main_x 84) (<= 84 main_x)), 44087#(and (<= 85 main_x) (<= main_x 85)), 44088#(and (<= 86 main_x) (<= main_x 86)), 44089#(and (<= 87 main_x) (<= main_x 87)), 44090#(and (<= 88 main_x) (<= main_x 88)), 44091#(and (<= 89 main_x) (<= main_x 89)), 44092#(and (<= 90 main_x) (<= main_x 90)), 44093#(and (<= main_x 91) (<= 91 main_x)), 44094#(and (<= main_x 92) (<= 92 main_x)), 44095#(and (<= 93 main_x) (<= main_x 93)), 44096#(and (<= 94 main_x) (<= main_x 94)), 44097#(and (<= 95 main_x) (<= main_x 95)), 44098#(and (<= 96 main_x) (<= main_x 96)), 44099#(and (<= main_x 97) (<= 97 main_x)), 44100#(and (<= main_x 98) (<= 98 main_x)), 44101#(and (<= 99 main_x) (<= main_x 99)), 44102#(and (<= main_x 100) (<= 100 main_x)), 44103#(and (<= 101 main_x) (<= main_x 101)), 44104#(and (<= main_x 102) (<= 102 main_x)), 44105#(and (<= main_x 103) (<= 103 main_x)), 44106#(and (<= main_x 104) (<= 104 main_x)), 44107#(and (<= main_x 105) (<= 105 main_x)), 44108#(and (<= 106 main_x) (<= main_x 106)), 44109#(and (<= main_x 107) (<= 107 main_x)), 44110#(and (<= 108 main_x) (<= main_x 108)), 44111#(and (<= 109 main_x) (<= main_x 109)), 44112#(and (<= main_x 110) (<= 110 main_x)), 44113#(and (<= main_x 111) (<= 111 main_x)), 44114#(and (<= main_x 112) (<= 112 main_x)), 44115#(and (<= main_x 113) (<= 113 main_x)), 44116#(and (<= 114 main_x) (<= main_x 114)), 44117#(and (<= 115 main_x) (<= main_x 115)), 44118#(and (<= 116 main_x) (<= main_x 116)), 44119#(and (<= 117 main_x) (<= main_x 117)), 44120#(and (<= 118 main_x) (<= main_x 118)), 44121#(and (<= main_x 119) (<= 119 main_x)), 44122#(and (<= main_x 120) (<= 120 main_x)), 44123#(and (<= 121 main_x) (<= main_x 121)), 44124#(and (<= 122 main_x) (<= main_x 122)), 44125#(and (<= main_x 123) (<= 123 main_x)), 44126#(and (<= main_x 124) (<= 124 main_x)), 44127#(and (<= main_x 125) (<= 125 main_x)), 44128#(and (<= 126 main_x) (<= main_x 126)), 44129#(and (<= main_x 127) (<= 127 main_x)), 44130#(and (<= main_x 128) (<= 128 main_x)), 44131#(or (<= 129 main_x) (<= (+ main_x 127) 0)), 44000#true, 44001#false, 44002#(and (<= main_x 0) (<= 0 main_x)), 44003#(and (<= 1 main_x) (<= main_x 1)), 44004#(and (<= 2 main_x) (<= main_x 2)), 44005#(and (<= 3 main_x) (<= main_x 3)), 44006#(and (<= main_x 4) (<= 4 main_x)), 44007#(and (<= 5 main_x) (<= main_x 5)), 44008#(and (<= 6 main_x) (<= main_x 6)), 44009#(and (<= main_x 7) (<= 7 main_x)), 44010#(and (<= main_x 8) (<= 8 main_x)), 44011#(and (<= 9 main_x) (<= main_x 9)), 44012#(and (<= main_x 10) (<= 10 main_x)), 44013#(and (<= 11 main_x) (<= main_x 11)), 44014#(and (<= 12 main_x) (<= main_x 12)), 44015#(and (<= 13 main_x) (<= main_x 13)), 44016#(and (<= 14 main_x) (<= main_x 14)), 44017#(and (<= 15 main_x) (<= main_x 15)), 44018#(and (<= main_x 16) (<= 16 main_x)), 44019#(and (<= 17 main_x) (<= main_x 17)), 44020#(and (<= main_x 18) (<= 18 main_x)), 44021#(and (<= main_x 19) (<= 19 main_x)), 44022#(and (<= 20 main_x) (<= main_x 20)), 44023#(and (<= 21 main_x) (<= main_x 21)), 44024#(and (<= main_x 22) (<= 22 main_x)), 44025#(and (<= 23 main_x) (<= main_x 23)), 44026#(and (<= main_x 24) (<= 24 main_x)), 44027#(and (<= main_x 25) (<= 25 main_x)), 44028#(and (<= main_x 26) (<= 26 main_x)), 44029#(and (<= main_x 27) (<= 27 main_x)), 44030#(and (<= main_x 28) (<= 28 main_x)), 44031#(and (<= main_x 29) (<= 29 main_x))] [2018-07-23 13:52:47,469 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 13:52:47,470 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:52:47,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:52:47,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=17031, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:52:47,471 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 132 states. [2018-07-23 13:52:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:48,635 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2018-07-23 13:52:48,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:52:48,636 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 131 [2018-07-23 13:52:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:48,636 INFO L225 Difference]: With dead ends: 134 [2018-07-23 13:52:48,636 INFO L226 Difference]: Without dead ends: 133 [2018-07-23 13:52:48,637 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=17031, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:52:48,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-07-23 13:52:48,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-07-23 13:52:48,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-07-23 13:52:48,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2018-07-23 13:52:48,642 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 131 [2018-07-23 13:52:48,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:48,643 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 133 transitions. [2018-07-23 13:52:48,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:52:48,643 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 133 transitions. [2018-07-23 13:52:48,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-07-23 13:52:48,643 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:48,643 INFO L357 BasicCegarLoop]: trace histogram [130, 1, 1] [2018-07-23 13:52:48,643 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:48,643 INFO L82 PathProgramCache]: Analyzing trace with hash -413753229, now seen corresponding path program 130 times [2018-07-23 13:52:48,644 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:49,439 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 13:52:49,439 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:49,439 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:52:49,439 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:49,439 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 13:52:49,440 INFO L185 omatonBuilderFactory]: Interpolants [44666#true, 44667#false, 44668#(and (<= main_x 0) (<= 0 main_x)), 44669#(and (<= 1 main_x) (<= main_x 1)), 44670#(and (<= 2 main_x) (<= main_x 2)), 44671#(and (<= 3 main_x) (<= main_x 3)), 44672#(and (<= main_x 4) (<= 4 main_x)), 44673#(and (<= 5 main_x) (<= main_x 5)), 44674#(and (<= 6 main_x) (<= main_x 6)), 44675#(and (<= main_x 7) (<= 7 main_x)), 44676#(and (<= main_x 8) (<= 8 main_x)), 44677#(and (<= 9 main_x) (<= main_x 9)), 44678#(and (<= main_x 10) (<= 10 main_x)), 44679#(and (<= 11 main_x) (<= main_x 11)), 44680#(and (<= 12 main_x) (<= main_x 12)), 44681#(and (<= 13 main_x) (<= main_x 13)), 44682#(and (<= 14 main_x) (<= main_x 14)), 44683#(and (<= 15 main_x) (<= main_x 15)), 44684#(and (<= main_x 16) (<= 16 main_x)), 44685#(and (<= 17 main_x) (<= main_x 17)), 44686#(and (<= main_x 18) (<= 18 main_x)), 44687#(and (<= main_x 19) (<= 19 main_x)), 44688#(and (<= 20 main_x) (<= main_x 20)), 44689#(and (<= 21 main_x) (<= main_x 21)), 44690#(and (<= main_x 22) (<= 22 main_x)), 44691#(and (<= 23 main_x) (<= main_x 23)), 44692#(and (<= main_x 24) (<= 24 main_x)), 44693#(and (<= main_x 25) (<= 25 main_x)), 44694#(and (<= main_x 26) (<= 26 main_x)), 44695#(and (<= main_x 27) (<= 27 main_x)), 44696#(and (<= main_x 28) (<= 28 main_x)), 44697#(and (<= main_x 29) (<= 29 main_x)), 44698#(and (<= 30 main_x) (<= main_x 30)), 44699#(and (<= 31 main_x) (<= main_x 31)), 44700#(and (<= 32 main_x) (<= main_x 32)), 44701#(and (<= main_x 33) (<= 33 main_x)), 44702#(and (<= 34 main_x) (<= main_x 34)), 44703#(and (<= main_x 35) (<= 35 main_x)), 44704#(and (<= main_x 36) (<= 36 main_x)), 44705#(and (<= 37 main_x) (<= main_x 37)), 44706#(and (<= 38 main_x) (<= main_x 38)), 44707#(and (<= 39 main_x) (<= main_x 39)), 44708#(and (<= main_x 40) (<= 40 main_x)), 44709#(and (<= 41 main_x) (<= main_x 41)), 44710#(and (<= 42 main_x) (<= main_x 42)), 44711#(and (<= 43 main_x) (<= main_x 43)), 44712#(and (<= main_x 44) (<= 44 main_x)), 44713#(and (<= 45 main_x) (<= main_x 45)), 44714#(and (<= 46 main_x) (<= main_x 46)), 44715#(and (<= 47 main_x) (<= main_x 47)), 44716#(and (<= 48 main_x) (<= main_x 48)), 44717#(and (<= main_x 49) (<= 49 main_x)), 44718#(and (<= main_x 50) (<= 50 main_x)), 44719#(and (<= main_x 51) (<= 51 main_x)), 44720#(and (<= 52 main_x) (<= main_x 52)), 44721#(and (<= main_x 53) (<= 53 main_x)), 44722#(and (<= 54 main_x) (<= main_x 54)), 44723#(and (<= 55 main_x) (<= main_x 55)), 44724#(and (<= main_x 56) (<= 56 main_x)), 44725#(and (<= main_x 57) (<= 57 main_x)), 44726#(and (<= 58 main_x) (<= main_x 58)), 44727#(and (<= 59 main_x) (<= main_x 59)), 44728#(and (<= main_x 60) (<= 60 main_x)), 44729#(and (<= main_x 61) (<= 61 main_x)), 44730#(and (<= main_x 62) (<= 62 main_x)), 44731#(and (<= 63 main_x) (<= main_x 63)), 44732#(and (<= 64 main_x) (<= main_x 64)), 44733#(and (<= main_x 65) (<= 65 main_x)), 44734#(and (<= main_x 66) (<= 66 main_x)), 44735#(and (<= 67 main_x) (<= main_x 67)), 44736#(and (<= main_x 68) (<= 68 main_x)), 44737#(and (<= 69 main_x) (<= main_x 69)), 44738#(and (<= main_x 70) (<= 70 main_x)), 44739#(and (<= 71 main_x) (<= main_x 71)), 44740#(and (<= main_x 72) (<= 72 main_x)), 44741#(and (<= main_x 73) (<= 73 main_x)), 44742#(and (<= 74 main_x) (<= main_x 74)), 44743#(and (<= main_x 75) (<= 75 main_x)), 44744#(and (<= main_x 76) (<= 76 main_x)), 44745#(and (<= 77 main_x) (<= main_x 77)), 44746#(and (<= 78 main_x) (<= main_x 78)), 44747#(and (<= 79 main_x) (<= main_x 79)), 44748#(and (<= main_x 80) (<= 80 main_x)), 44749#(and (<= 81 main_x) (<= main_x 81)), 44750#(and (<= 82 main_x) (<= main_x 82)), 44751#(and (<= 83 main_x) (<= main_x 83)), 44752#(and (<= main_x 84) (<= 84 main_x)), 44753#(and (<= 85 main_x) (<= main_x 85)), 44754#(and (<= 86 main_x) (<= main_x 86)), 44755#(and (<= 87 main_x) (<= main_x 87)), 44756#(and (<= 88 main_x) (<= main_x 88)), 44757#(and (<= 89 main_x) (<= main_x 89)), 44758#(and (<= 90 main_x) (<= main_x 90)), 44759#(and (<= main_x 91) (<= 91 main_x)), 44760#(and (<= main_x 92) (<= 92 main_x)), 44761#(and (<= 93 main_x) (<= main_x 93)), 44762#(and (<= 94 main_x) (<= main_x 94)), 44763#(and (<= 95 main_x) (<= main_x 95)), 44764#(and (<= 96 main_x) (<= main_x 96)), 44765#(and (<= main_x 97) (<= 97 main_x)), 44766#(and (<= main_x 98) (<= 98 main_x)), 44767#(and (<= 99 main_x) (<= main_x 99)), 44768#(and (<= main_x 100) (<= 100 main_x)), 44769#(and (<= 101 main_x) (<= main_x 101)), 44770#(and (<= main_x 102) (<= 102 main_x)), 44771#(and (<= main_x 103) (<= 103 main_x)), 44772#(and (<= main_x 104) (<= 104 main_x)), 44773#(and (<= main_x 105) (<= 105 main_x)), 44774#(and (<= 106 main_x) (<= main_x 106)), 44775#(and (<= main_x 107) (<= 107 main_x)), 44776#(and (<= 108 main_x) (<= main_x 108)), 44777#(and (<= 109 main_x) (<= main_x 109)), 44778#(and (<= main_x 110) (<= 110 main_x)), 44779#(and (<= main_x 111) (<= 111 main_x)), 44780#(and (<= main_x 112) (<= 112 main_x)), 44781#(and (<= main_x 113) (<= 113 main_x)), 44782#(and (<= 114 main_x) (<= main_x 114)), 44783#(and (<= 115 main_x) (<= main_x 115)), 44784#(and (<= 116 main_x) (<= main_x 116)), 44785#(and (<= 117 main_x) (<= main_x 117)), 44786#(and (<= 118 main_x) (<= main_x 118)), 44787#(and (<= main_x 119) (<= 119 main_x)), 44788#(and (<= main_x 120) (<= 120 main_x)), 44789#(and (<= 121 main_x) (<= main_x 121)), 44790#(and (<= 122 main_x) (<= main_x 122)), 44791#(and (<= main_x 123) (<= 123 main_x)), 44792#(and (<= main_x 124) (<= 124 main_x)), 44793#(and (<= main_x 125) (<= 125 main_x)), 44794#(and (<= 126 main_x) (<= main_x 126)), 44795#(and (<= main_x 127) (<= 127 main_x)), 44796#(and (<= main_x 128) (<= 128 main_x)), 44797#(and (<= 129 main_x) (<= main_x 129)), 44798#(or (<= 130 main_x) (<= (+ main_x 126) 0))] [2018-07-23 13:52:49,440 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 13:52:49,440 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:52:49,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:52:49,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=17293, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:52:49,441 INFO L87 Difference]: Start difference. First operand 133 states and 133 transitions. Second operand 133 states. [2018-07-23 13:52:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:50,620 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:52:50,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:52:50,620 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 132 [2018-07-23 13:52:50,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:50,621 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:52:50,621 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:52:50,622 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=263, Invalid=17293, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:52:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:52:50,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:52:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:52:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:52:50,627 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 132 [2018-07-23 13:52:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:50,627 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:52:50,627 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:52:50,627 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:52:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:52:50,628 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:50,628 INFO L357 BasicCegarLoop]: trace histogram [131, 1, 1] [2018-07-23 13:52:50,628 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:50,628 INFO L82 PathProgramCache]: Analyzing trace with hash 58552024, now seen corresponding path program 131 times [2018-07-23 13:52:50,628 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:51,557 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 13:52:51,557 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:51,558 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:52:51,558 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:51,558 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 13:52:51,558 INFO L185 omatonBuilderFactory]: Interpolants [45337#true, 45338#false, 45339#(and (<= main_x 0) (<= 0 main_x)), 45340#(and (<= 1 main_x) (<= main_x 1)), 45341#(and (<= 2 main_x) (<= main_x 2)), 45342#(and (<= 3 main_x) (<= main_x 3)), 45343#(and (<= main_x 4) (<= 4 main_x)), 45344#(and (<= 5 main_x) (<= main_x 5)), 45345#(and (<= 6 main_x) (<= main_x 6)), 45346#(and (<= main_x 7) (<= 7 main_x)), 45347#(and (<= main_x 8) (<= 8 main_x)), 45348#(and (<= 9 main_x) (<= main_x 9)), 45349#(and (<= main_x 10) (<= 10 main_x)), 45350#(and (<= 11 main_x) (<= main_x 11)), 45351#(and (<= 12 main_x) (<= main_x 12)), 45352#(and (<= 13 main_x) (<= main_x 13)), 45353#(and (<= 14 main_x) (<= main_x 14)), 45354#(and (<= 15 main_x) (<= main_x 15)), 45355#(and (<= main_x 16) (<= 16 main_x)), 45356#(and (<= 17 main_x) (<= main_x 17)), 45357#(and (<= main_x 18) (<= 18 main_x)), 45358#(and (<= main_x 19) (<= 19 main_x)), 45359#(and (<= 20 main_x) (<= main_x 20)), 45360#(and (<= 21 main_x) (<= main_x 21)), 45361#(and (<= main_x 22) (<= 22 main_x)), 45362#(and (<= 23 main_x) (<= main_x 23)), 45363#(and (<= main_x 24) (<= 24 main_x)), 45364#(and (<= main_x 25) (<= 25 main_x)), 45365#(and (<= main_x 26) (<= 26 main_x)), 45366#(and (<= main_x 27) (<= 27 main_x)), 45367#(and (<= main_x 28) (<= 28 main_x)), 45368#(and (<= main_x 29) (<= 29 main_x)), 45369#(and (<= 30 main_x) (<= main_x 30)), 45370#(and (<= 31 main_x) (<= main_x 31)), 45371#(and (<= 32 main_x) (<= main_x 32)), 45372#(and (<= main_x 33) (<= 33 main_x)), 45373#(and (<= 34 main_x) (<= main_x 34)), 45374#(and (<= main_x 35) (<= 35 main_x)), 45375#(and (<= main_x 36) (<= 36 main_x)), 45376#(and (<= 37 main_x) (<= main_x 37)), 45377#(and (<= 38 main_x) (<= main_x 38)), 45378#(and (<= 39 main_x) (<= main_x 39)), 45379#(and (<= main_x 40) (<= 40 main_x)), 45380#(and (<= 41 main_x) (<= main_x 41)), 45381#(and (<= 42 main_x) (<= main_x 42)), 45382#(and (<= 43 main_x) (<= main_x 43)), 45383#(and (<= main_x 44) (<= 44 main_x)), 45384#(and (<= 45 main_x) (<= main_x 45)), 45385#(and (<= 46 main_x) (<= main_x 46)), 45386#(and (<= 47 main_x) (<= main_x 47)), 45387#(and (<= 48 main_x) (<= main_x 48)), 45388#(and (<= main_x 49) (<= 49 main_x)), 45389#(and (<= main_x 50) (<= 50 main_x)), 45390#(and (<= main_x 51) (<= 51 main_x)), 45391#(and (<= 52 main_x) (<= main_x 52)), 45392#(and (<= main_x 53) (<= 53 main_x)), 45393#(and (<= 54 main_x) (<= main_x 54)), 45394#(and (<= 55 main_x) (<= main_x 55)), 45395#(and (<= main_x 56) (<= 56 main_x)), 45396#(and (<= main_x 57) (<= 57 main_x)), 45397#(and (<= 58 main_x) (<= main_x 58)), 45398#(and (<= 59 main_x) (<= main_x 59)), 45399#(and (<= main_x 60) (<= 60 main_x)), 45400#(and (<= main_x 61) (<= 61 main_x)), 45401#(and (<= main_x 62) (<= 62 main_x)), 45402#(and (<= 63 main_x) (<= main_x 63)), 45403#(and (<= 64 main_x) (<= main_x 64)), 45404#(and (<= main_x 65) (<= 65 main_x)), 45405#(and (<= main_x 66) (<= 66 main_x)), 45406#(and (<= 67 main_x) (<= main_x 67)), 45407#(and (<= main_x 68) (<= 68 main_x)), 45408#(and (<= 69 main_x) (<= main_x 69)), 45409#(and (<= main_x 70) (<= 70 main_x)), 45410#(and (<= 71 main_x) (<= main_x 71)), 45411#(and (<= main_x 72) (<= 72 main_x)), 45412#(and (<= main_x 73) (<= 73 main_x)), 45413#(and (<= 74 main_x) (<= main_x 74)), 45414#(and (<= main_x 75) (<= 75 main_x)), 45415#(and (<= main_x 76) (<= 76 main_x)), 45416#(and (<= 77 main_x) (<= main_x 77)), 45417#(and (<= 78 main_x) (<= main_x 78)), 45418#(and (<= 79 main_x) (<= main_x 79)), 45419#(and (<= main_x 80) (<= 80 main_x)), 45420#(and (<= 81 main_x) (<= main_x 81)), 45421#(and (<= 82 main_x) (<= main_x 82)), 45422#(and (<= 83 main_x) (<= main_x 83)), 45423#(and (<= main_x 84) (<= 84 main_x)), 45424#(and (<= 85 main_x) (<= main_x 85)), 45425#(and (<= 86 main_x) (<= main_x 86)), 45426#(and (<= 87 main_x) (<= main_x 87)), 45427#(and (<= 88 main_x) (<= main_x 88)), 45428#(and (<= 89 main_x) (<= main_x 89)), 45429#(and (<= 90 main_x) (<= main_x 90)), 45430#(and (<= main_x 91) (<= 91 main_x)), 45431#(and (<= main_x 92) (<= 92 main_x)), 45432#(and (<= 93 main_x) (<= main_x 93)), 45433#(and (<= 94 main_x) (<= main_x 94)), 45434#(and (<= 95 main_x) (<= main_x 95)), 45435#(and (<= 96 main_x) (<= main_x 96)), 45436#(and (<= main_x 97) (<= 97 main_x)), 45437#(and (<= main_x 98) (<= 98 main_x)), 45438#(and (<= 99 main_x) (<= main_x 99)), 45439#(and (<= main_x 100) (<= 100 main_x)), 45440#(and (<= 101 main_x) (<= main_x 101)), 45441#(and (<= main_x 102) (<= 102 main_x)), 45442#(and (<= main_x 103) (<= 103 main_x)), 45443#(and (<= main_x 104) (<= 104 main_x)), 45444#(and (<= main_x 105) (<= 105 main_x)), 45445#(and (<= 106 main_x) (<= main_x 106)), 45446#(and (<= main_x 107) (<= 107 main_x)), 45447#(and (<= 108 main_x) (<= main_x 108)), 45448#(and (<= 109 main_x) (<= main_x 109)), 45449#(and (<= main_x 110) (<= 110 main_x)), 45450#(and (<= main_x 111) (<= 111 main_x)), 45451#(and (<= main_x 112) (<= 112 main_x)), 45452#(and (<= main_x 113) (<= 113 main_x)), 45453#(and (<= 114 main_x) (<= main_x 114)), 45454#(and (<= 115 main_x) (<= main_x 115)), 45455#(and (<= 116 main_x) (<= main_x 116)), 45456#(and (<= 117 main_x) (<= main_x 117)), 45457#(and (<= 118 main_x) (<= main_x 118)), 45458#(and (<= main_x 119) (<= 119 main_x)), 45459#(and (<= main_x 120) (<= 120 main_x)), 45460#(and (<= 121 main_x) (<= main_x 121)), 45461#(and (<= 122 main_x) (<= main_x 122)), 45462#(and (<= main_x 123) (<= 123 main_x)), 45463#(and (<= main_x 124) (<= 124 main_x)), 45464#(and (<= main_x 125) (<= 125 main_x)), 45465#(and (<= 126 main_x) (<= main_x 126)), 45466#(and (<= main_x 127) (<= 127 main_x)), 45467#(and (<= main_x 128) (<= 128 main_x)), 45468#(and (<= 129 main_x) (<= main_x 129)), 45469#(and (<= main_x 130) (<= 130 main_x)), 45470#(or (<= (+ main_x 125) 0) (<= 131 main_x))] [2018-07-23 13:52:51,559 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 13:52:51,559 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:52:51,559 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:52:51,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=17557, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:52:51,560 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 134 states. [2018-07-23 13:52:52,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:52,760 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2018-07-23 13:52:52,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:52:52,760 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 133 [2018-07-23 13:52:52,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:52,760 INFO L225 Difference]: With dead ends: 136 [2018-07-23 13:52:52,760 INFO L226 Difference]: Without dead ends: 135 [2018-07-23 13:52:52,761 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=265, Invalid=17557, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:52:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-07-23 13:52:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2018-07-23 13:52:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-07-23 13:52:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2018-07-23 13:52:52,766 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 133 [2018-07-23 13:52:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:52,767 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2018-07-23 13:52:52,767 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:52:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2018-07-23 13:52:52,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 13:52:52,767 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:52,767 INFO L357 BasicCegarLoop]: trace histogram [132, 1, 1] [2018-07-23 13:52:52,767 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1815112979, now seen corresponding path program 132 times [2018-07-23 13:52:52,768 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:53,668 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 13:52:53,669 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:53,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:52:53,669 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:53,669 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 13:52:53,669 INFO L185 omatonBuilderFactory]: Interpolants [46080#(and (<= main_x 65) (<= 65 main_x)), 46081#(and (<= main_x 66) (<= 66 main_x)), 46082#(and (<= 67 main_x) (<= main_x 67)), 46083#(and (<= main_x 68) (<= 68 main_x)), 46084#(and (<= 69 main_x) (<= main_x 69)), 46085#(and (<= main_x 70) (<= 70 main_x)), 46086#(and (<= 71 main_x) (<= main_x 71)), 46087#(and (<= main_x 72) (<= 72 main_x)), 46088#(and (<= main_x 73) (<= 73 main_x)), 46089#(and (<= 74 main_x) (<= main_x 74)), 46090#(and (<= main_x 75) (<= 75 main_x)), 46091#(and (<= main_x 76) (<= 76 main_x)), 46092#(and (<= 77 main_x) (<= main_x 77)), 46093#(and (<= 78 main_x) (<= main_x 78)), 46094#(and (<= 79 main_x) (<= main_x 79)), 46095#(and (<= main_x 80) (<= 80 main_x)), 46096#(and (<= 81 main_x) (<= main_x 81)), 46097#(and (<= 82 main_x) (<= main_x 82)), 46098#(and (<= 83 main_x) (<= main_x 83)), 46099#(and (<= main_x 84) (<= 84 main_x)), 46100#(and (<= 85 main_x) (<= main_x 85)), 46101#(and (<= 86 main_x) (<= main_x 86)), 46102#(and (<= 87 main_x) (<= main_x 87)), 46103#(and (<= 88 main_x) (<= main_x 88)), 46104#(and (<= 89 main_x) (<= main_x 89)), 46105#(and (<= 90 main_x) (<= main_x 90)), 46106#(and (<= main_x 91) (<= 91 main_x)), 46107#(and (<= main_x 92) (<= 92 main_x)), 46108#(and (<= 93 main_x) (<= main_x 93)), 46109#(and (<= 94 main_x) (<= main_x 94)), 46110#(and (<= 95 main_x) (<= main_x 95)), 46111#(and (<= 96 main_x) (<= main_x 96)), 46112#(and (<= main_x 97) (<= 97 main_x)), 46113#(and (<= main_x 98) (<= 98 main_x)), 46114#(and (<= 99 main_x) (<= main_x 99)), 46115#(and (<= main_x 100) (<= 100 main_x)), 46116#(and (<= 101 main_x) (<= main_x 101)), 46117#(and (<= main_x 102) (<= 102 main_x)), 46118#(and (<= main_x 103) (<= 103 main_x)), 46119#(and (<= main_x 104) (<= 104 main_x)), 46120#(and (<= main_x 105) (<= 105 main_x)), 46121#(and (<= 106 main_x) (<= main_x 106)), 46122#(and (<= main_x 107) (<= 107 main_x)), 46123#(and (<= 108 main_x) (<= main_x 108)), 46124#(and (<= 109 main_x) (<= main_x 109)), 46125#(and (<= main_x 110) (<= 110 main_x)), 46126#(and (<= main_x 111) (<= 111 main_x)), 46127#(and (<= main_x 112) (<= 112 main_x)), 46128#(and (<= main_x 113) (<= 113 main_x)), 46129#(and (<= 114 main_x) (<= main_x 114)), 46130#(and (<= 115 main_x) (<= main_x 115)), 46131#(and (<= 116 main_x) (<= main_x 116)), 46132#(and (<= 117 main_x) (<= main_x 117)), 46133#(and (<= 118 main_x) (<= main_x 118)), 46134#(and (<= main_x 119) (<= 119 main_x)), 46135#(and (<= main_x 120) (<= 120 main_x)), 46136#(and (<= 121 main_x) (<= main_x 121)), 46137#(and (<= 122 main_x) (<= main_x 122)), 46138#(and (<= main_x 123) (<= 123 main_x)), 46139#(and (<= main_x 124) (<= 124 main_x)), 46140#(and (<= main_x 125) (<= 125 main_x)), 46141#(and (<= 126 main_x) (<= main_x 126)), 46142#(and (<= main_x 127) (<= 127 main_x)), 46143#(and (<= main_x 128) (<= 128 main_x)), 46144#(and (<= 129 main_x) (<= main_x 129)), 46145#(and (<= main_x 130) (<= 130 main_x)), 46146#(and (<= main_x 131) (<= 131 main_x)), 46147#(or (<= 132 main_x) (<= (+ main_x 124) 0)), 46013#true, 46014#false, 46015#(and (<= main_x 0) (<= 0 main_x)), 46016#(and (<= 1 main_x) (<= main_x 1)), 46017#(and (<= 2 main_x) (<= main_x 2)), 46018#(and (<= 3 main_x) (<= main_x 3)), 46019#(and (<= main_x 4) (<= 4 main_x)), 46020#(and (<= 5 main_x) (<= main_x 5)), 46021#(and (<= 6 main_x) (<= main_x 6)), 46022#(and (<= main_x 7) (<= 7 main_x)), 46023#(and (<= main_x 8) (<= 8 main_x)), 46024#(and (<= 9 main_x) (<= main_x 9)), 46025#(and (<= main_x 10) (<= 10 main_x)), 46026#(and (<= 11 main_x) (<= main_x 11)), 46027#(and (<= 12 main_x) (<= main_x 12)), 46028#(and (<= 13 main_x) (<= main_x 13)), 46029#(and (<= 14 main_x) (<= main_x 14)), 46030#(and (<= 15 main_x) (<= main_x 15)), 46031#(and (<= main_x 16) (<= 16 main_x)), 46032#(and (<= 17 main_x) (<= main_x 17)), 46033#(and (<= main_x 18) (<= 18 main_x)), 46034#(and (<= main_x 19) (<= 19 main_x)), 46035#(and (<= 20 main_x) (<= main_x 20)), 46036#(and (<= 21 main_x) (<= main_x 21)), 46037#(and (<= main_x 22) (<= 22 main_x)), 46038#(and (<= 23 main_x) (<= main_x 23)), 46039#(and (<= main_x 24) (<= 24 main_x)), 46040#(and (<= main_x 25) (<= 25 main_x)), 46041#(and (<= main_x 26) (<= 26 main_x)), 46042#(and (<= main_x 27) (<= 27 main_x)), 46043#(and (<= main_x 28) (<= 28 main_x)), 46044#(and (<= main_x 29) (<= 29 main_x)), 46045#(and (<= 30 main_x) (<= main_x 30)), 46046#(and (<= 31 main_x) (<= main_x 31)), 46047#(and (<= 32 main_x) (<= main_x 32)), 46048#(and (<= main_x 33) (<= 33 main_x)), 46049#(and (<= 34 main_x) (<= main_x 34)), 46050#(and (<= main_x 35) (<= 35 main_x)), 46051#(and (<= main_x 36) (<= 36 main_x)), 46052#(and (<= 37 main_x) (<= main_x 37)), 46053#(and (<= 38 main_x) (<= main_x 38)), 46054#(and (<= 39 main_x) (<= main_x 39)), 46055#(and (<= main_x 40) (<= 40 main_x)), 46056#(and (<= 41 main_x) (<= main_x 41)), 46057#(and (<= 42 main_x) (<= main_x 42)), 46058#(and (<= 43 main_x) (<= main_x 43)), 46059#(and (<= main_x 44) (<= 44 main_x)), 46060#(and (<= 45 main_x) (<= main_x 45)), 46061#(and (<= 46 main_x) (<= main_x 46)), 46062#(and (<= 47 main_x) (<= main_x 47)), 46063#(and (<= 48 main_x) (<= main_x 48)), 46064#(and (<= main_x 49) (<= 49 main_x)), 46065#(and (<= main_x 50) (<= 50 main_x)), 46066#(and (<= main_x 51) (<= 51 main_x)), 46067#(and (<= 52 main_x) (<= main_x 52)), 46068#(and (<= main_x 53) (<= 53 main_x)), 46069#(and (<= 54 main_x) (<= main_x 54)), 46070#(and (<= 55 main_x) (<= main_x 55)), 46071#(and (<= main_x 56) (<= 56 main_x)), 46072#(and (<= main_x 57) (<= 57 main_x)), 46073#(and (<= 58 main_x) (<= main_x 58)), 46074#(and (<= 59 main_x) (<= main_x 59)), 46075#(and (<= main_x 60) (<= 60 main_x)), 46076#(and (<= main_x 61) (<= 61 main_x)), 46077#(and (<= main_x 62) (<= 62 main_x)), 46078#(and (<= 63 main_x) (<= main_x 63)), 46079#(and (<= 64 main_x) (<= main_x 64))] [2018-07-23 13:52:53,670 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 13:52:53,670 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:52:53,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:52:53,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=17823, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:52:53,671 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand 135 states. [2018-07-23 13:52:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:54,905 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:52:54,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:52:54,905 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 134 [2018-07-23 13:52:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:54,905 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:52:54,905 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:52:54,906 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=267, Invalid=17823, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:52:54,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:52:54,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:52:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:52:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:52:54,913 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 134 [2018-07-23 13:52:54,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:54,913 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:52:54,913 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:52:54,914 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:52:54,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:52:54,914 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:54,914 INFO L357 BasicCegarLoop]: trace histogram [133, 1, 1] [2018-07-23 13:52:54,914 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:54,915 INFO L82 PathProgramCache]: Analyzing trace with hash 433927736, now seen corresponding path program 133 times [2018-07-23 13:52:54,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:55,872 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 13:52:55,873 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:55,873 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:52:55,873 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:55,873 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 13:52:55,874 INFO L185 omatonBuilderFactory]: Interpolants [46694#true, 46695#false, 46696#(and (<= main_x 0) (<= 0 main_x)), 46697#(and (<= 1 main_x) (<= main_x 1)), 46698#(and (<= 2 main_x) (<= main_x 2)), 46699#(and (<= 3 main_x) (<= main_x 3)), 46700#(and (<= main_x 4) (<= 4 main_x)), 46701#(and (<= 5 main_x) (<= main_x 5)), 46702#(and (<= 6 main_x) (<= main_x 6)), 46703#(and (<= main_x 7) (<= 7 main_x)), 46704#(and (<= main_x 8) (<= 8 main_x)), 46705#(and (<= 9 main_x) (<= main_x 9)), 46706#(and (<= main_x 10) (<= 10 main_x)), 46707#(and (<= 11 main_x) (<= main_x 11)), 46708#(and (<= 12 main_x) (<= main_x 12)), 46709#(and (<= 13 main_x) (<= main_x 13)), 46710#(and (<= 14 main_x) (<= main_x 14)), 46711#(and (<= 15 main_x) (<= main_x 15)), 46712#(and (<= main_x 16) (<= 16 main_x)), 46713#(and (<= 17 main_x) (<= main_x 17)), 46714#(and (<= main_x 18) (<= 18 main_x)), 46715#(and (<= main_x 19) (<= 19 main_x)), 46716#(and (<= 20 main_x) (<= main_x 20)), 46717#(and (<= 21 main_x) (<= main_x 21)), 46718#(and (<= main_x 22) (<= 22 main_x)), 46719#(and (<= 23 main_x) (<= main_x 23)), 46720#(and (<= main_x 24) (<= 24 main_x)), 46721#(and (<= main_x 25) (<= 25 main_x)), 46722#(and (<= main_x 26) (<= 26 main_x)), 46723#(and (<= main_x 27) (<= 27 main_x)), 46724#(and (<= main_x 28) (<= 28 main_x)), 46725#(and (<= main_x 29) (<= 29 main_x)), 46726#(and (<= 30 main_x) (<= main_x 30)), 46727#(and (<= 31 main_x) (<= main_x 31)), 46728#(and (<= 32 main_x) (<= main_x 32)), 46729#(and (<= main_x 33) (<= 33 main_x)), 46730#(and (<= 34 main_x) (<= main_x 34)), 46731#(and (<= main_x 35) (<= 35 main_x)), 46732#(and (<= main_x 36) (<= 36 main_x)), 46733#(and (<= 37 main_x) (<= main_x 37)), 46734#(and (<= 38 main_x) (<= main_x 38)), 46735#(and (<= 39 main_x) (<= main_x 39)), 46736#(and (<= main_x 40) (<= 40 main_x)), 46737#(and (<= 41 main_x) (<= main_x 41)), 46738#(and (<= 42 main_x) (<= main_x 42)), 46739#(and (<= 43 main_x) (<= main_x 43)), 46740#(and (<= main_x 44) (<= 44 main_x)), 46741#(and (<= 45 main_x) (<= main_x 45)), 46742#(and (<= 46 main_x) (<= main_x 46)), 46743#(and (<= 47 main_x) (<= main_x 47)), 46744#(and (<= 48 main_x) (<= main_x 48)), 46745#(and (<= main_x 49) (<= 49 main_x)), 46746#(and (<= main_x 50) (<= 50 main_x)), 46747#(and (<= main_x 51) (<= 51 main_x)), 46748#(and (<= 52 main_x) (<= main_x 52)), 46749#(and (<= main_x 53) (<= 53 main_x)), 46750#(and (<= 54 main_x) (<= main_x 54)), 46751#(and (<= 55 main_x) (<= main_x 55)), 46752#(and (<= main_x 56) (<= 56 main_x)), 46753#(and (<= main_x 57) (<= 57 main_x)), 46754#(and (<= 58 main_x) (<= main_x 58)), 46755#(and (<= 59 main_x) (<= main_x 59)), 46756#(and (<= main_x 60) (<= 60 main_x)), 46757#(and (<= main_x 61) (<= 61 main_x)), 46758#(and (<= main_x 62) (<= 62 main_x)), 46759#(and (<= 63 main_x) (<= main_x 63)), 46760#(and (<= 64 main_x) (<= main_x 64)), 46761#(and (<= main_x 65) (<= 65 main_x)), 46762#(and (<= main_x 66) (<= 66 main_x)), 46763#(and (<= 67 main_x) (<= main_x 67)), 46764#(and (<= main_x 68) (<= 68 main_x)), 46765#(and (<= 69 main_x) (<= main_x 69)), 46766#(and (<= main_x 70) (<= 70 main_x)), 46767#(and (<= 71 main_x) (<= main_x 71)), 46768#(and (<= main_x 72) (<= 72 main_x)), 46769#(and (<= main_x 73) (<= 73 main_x)), 46770#(and (<= 74 main_x) (<= main_x 74)), 46771#(and (<= main_x 75) (<= 75 main_x)), 46772#(and (<= main_x 76) (<= 76 main_x)), 46773#(and (<= 77 main_x) (<= main_x 77)), 46774#(and (<= 78 main_x) (<= main_x 78)), 46775#(and (<= 79 main_x) (<= main_x 79)), 46776#(and (<= main_x 80) (<= 80 main_x)), 46777#(and (<= 81 main_x) (<= main_x 81)), 46778#(and (<= 82 main_x) (<= main_x 82)), 46779#(and (<= 83 main_x) (<= main_x 83)), 46780#(and (<= main_x 84) (<= 84 main_x)), 46781#(and (<= 85 main_x) (<= main_x 85)), 46782#(and (<= 86 main_x) (<= main_x 86)), 46783#(and (<= 87 main_x) (<= main_x 87)), 46784#(and (<= 88 main_x) (<= main_x 88)), 46785#(and (<= 89 main_x) (<= main_x 89)), 46786#(and (<= 90 main_x) (<= main_x 90)), 46787#(and (<= main_x 91) (<= 91 main_x)), 46788#(and (<= main_x 92) (<= 92 main_x)), 46789#(and (<= 93 main_x) (<= main_x 93)), 46790#(and (<= 94 main_x) (<= main_x 94)), 46791#(and (<= 95 main_x) (<= main_x 95)), 46792#(and (<= 96 main_x) (<= main_x 96)), 46793#(and (<= main_x 97) (<= 97 main_x)), 46794#(and (<= main_x 98) (<= 98 main_x)), 46795#(and (<= 99 main_x) (<= main_x 99)), 46796#(and (<= main_x 100) (<= 100 main_x)), 46797#(and (<= 101 main_x) (<= main_x 101)), 46798#(and (<= main_x 102) (<= 102 main_x)), 46799#(and (<= main_x 103) (<= 103 main_x)), 46800#(and (<= main_x 104) (<= 104 main_x)), 46801#(and (<= main_x 105) (<= 105 main_x)), 46802#(and (<= 106 main_x) (<= main_x 106)), 46803#(and (<= main_x 107) (<= 107 main_x)), 46804#(and (<= 108 main_x) (<= main_x 108)), 46805#(and (<= 109 main_x) (<= main_x 109)), 46806#(and (<= main_x 110) (<= 110 main_x)), 46807#(and (<= main_x 111) (<= 111 main_x)), 46808#(and (<= main_x 112) (<= 112 main_x)), 46809#(and (<= main_x 113) (<= 113 main_x)), 46810#(and (<= 114 main_x) (<= main_x 114)), 46811#(and (<= 115 main_x) (<= main_x 115)), 46812#(and (<= 116 main_x) (<= main_x 116)), 46813#(and (<= 117 main_x) (<= main_x 117)), 46814#(and (<= 118 main_x) (<= main_x 118)), 46815#(and (<= main_x 119) (<= 119 main_x)), 46816#(and (<= main_x 120) (<= 120 main_x)), 46817#(and (<= 121 main_x) (<= main_x 121)), 46818#(and (<= 122 main_x) (<= main_x 122)), 46819#(and (<= main_x 123) (<= 123 main_x)), 46820#(and (<= main_x 124) (<= 124 main_x)), 46821#(and (<= main_x 125) (<= 125 main_x)), 46822#(and (<= 126 main_x) (<= main_x 126)), 46823#(and (<= main_x 127) (<= 127 main_x)), 46824#(and (<= main_x 128) (<= 128 main_x)), 46825#(and (<= 129 main_x) (<= main_x 129)), 46826#(and (<= main_x 130) (<= 130 main_x)), 46827#(and (<= main_x 131) (<= 131 main_x)), 46828#(and (<= 132 main_x) (<= main_x 132)), 46829#(or (<= 133 main_x) (<= (+ main_x 123) 0))] [2018-07-23 13:52:55,874 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 13:52:55,874 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:52:55,875 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:52:55,875 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=18091, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:52:55,876 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 136 states. [2018-07-23 13:52:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:57,122 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2018-07-23 13:52:57,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:52:57,123 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 135 [2018-07-23 13:52:57,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:57,123 INFO L225 Difference]: With dead ends: 138 [2018-07-23 13:52:57,123 INFO L226 Difference]: Without dead ends: 137 [2018-07-23 13:52:57,125 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=269, Invalid=18091, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:52:57,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-07-23 13:52:57,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2018-07-23 13:52:57,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-07-23 13:52:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2018-07-23 13:52:57,132 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 135 [2018-07-23 13:52:57,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:57,132 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2018-07-23 13:52:57,132 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:52:57,132 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2018-07-23 13:52:57,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-23 13:52:57,133 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:57,133 INFO L357 BasicCegarLoop]: trace histogram [134, 1, 1] [2018-07-23 13:52:57,133 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:57,134 INFO L82 PathProgramCache]: Analyzing trace with hash 566858163, now seen corresponding path program 134 times [2018-07-23 13:52:57,134 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:58,087 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 13:52:58,088 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:58,088 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:52:58,088 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:58,088 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 13:52:58,089 INFO L185 omatonBuilderFactory]: Interpolants [47380#true, 47381#false, 47382#(and (<= main_x 0) (<= 0 main_x)), 47383#(and (<= 1 main_x) (<= main_x 1)), 47384#(and (<= 2 main_x) (<= main_x 2)), 47385#(and (<= 3 main_x) (<= main_x 3)), 47386#(and (<= main_x 4) (<= 4 main_x)), 47387#(and (<= 5 main_x) (<= main_x 5)), 47388#(and (<= 6 main_x) (<= main_x 6)), 47389#(and (<= main_x 7) (<= 7 main_x)), 47390#(and (<= main_x 8) (<= 8 main_x)), 47391#(and (<= 9 main_x) (<= main_x 9)), 47392#(and (<= main_x 10) (<= 10 main_x)), 47393#(and (<= 11 main_x) (<= main_x 11)), 47394#(and (<= 12 main_x) (<= main_x 12)), 47395#(and (<= 13 main_x) (<= main_x 13)), 47396#(and (<= 14 main_x) (<= main_x 14)), 47397#(and (<= 15 main_x) (<= main_x 15)), 47398#(and (<= main_x 16) (<= 16 main_x)), 47399#(and (<= 17 main_x) (<= main_x 17)), 47400#(and (<= main_x 18) (<= 18 main_x)), 47401#(and (<= main_x 19) (<= 19 main_x)), 47402#(and (<= 20 main_x) (<= main_x 20)), 47403#(and (<= 21 main_x) (<= main_x 21)), 47404#(and (<= main_x 22) (<= 22 main_x)), 47405#(and (<= 23 main_x) (<= main_x 23)), 47406#(and (<= main_x 24) (<= 24 main_x)), 47407#(and (<= main_x 25) (<= 25 main_x)), 47408#(and (<= main_x 26) (<= 26 main_x)), 47409#(and (<= main_x 27) (<= 27 main_x)), 47410#(and (<= main_x 28) (<= 28 main_x)), 47411#(and (<= main_x 29) (<= 29 main_x)), 47412#(and (<= 30 main_x) (<= main_x 30)), 47413#(and (<= 31 main_x) (<= main_x 31)), 47414#(and (<= 32 main_x) (<= main_x 32)), 47415#(and (<= main_x 33) (<= 33 main_x)), 47416#(and (<= 34 main_x) (<= main_x 34)), 47417#(and (<= main_x 35) (<= 35 main_x)), 47418#(and (<= main_x 36) (<= 36 main_x)), 47419#(and (<= 37 main_x) (<= main_x 37)), 47420#(and (<= 38 main_x) (<= main_x 38)), 47421#(and (<= 39 main_x) (<= main_x 39)), 47422#(and (<= main_x 40) (<= 40 main_x)), 47423#(and (<= 41 main_x) (<= main_x 41)), 47424#(and (<= 42 main_x) (<= main_x 42)), 47425#(and (<= 43 main_x) (<= main_x 43)), 47426#(and (<= main_x 44) (<= 44 main_x)), 47427#(and (<= 45 main_x) (<= main_x 45)), 47428#(and (<= 46 main_x) (<= main_x 46)), 47429#(and (<= 47 main_x) (<= main_x 47)), 47430#(and (<= 48 main_x) (<= main_x 48)), 47431#(and (<= main_x 49) (<= 49 main_x)), 47432#(and (<= main_x 50) (<= 50 main_x)), 47433#(and (<= main_x 51) (<= 51 main_x)), 47434#(and (<= 52 main_x) (<= main_x 52)), 47435#(and (<= main_x 53) (<= 53 main_x)), 47436#(and (<= 54 main_x) (<= main_x 54)), 47437#(and (<= 55 main_x) (<= main_x 55)), 47438#(and (<= main_x 56) (<= 56 main_x)), 47439#(and (<= main_x 57) (<= 57 main_x)), 47440#(and (<= 58 main_x) (<= main_x 58)), 47441#(and (<= 59 main_x) (<= main_x 59)), 47442#(and (<= main_x 60) (<= 60 main_x)), 47443#(and (<= main_x 61) (<= 61 main_x)), 47444#(and (<= main_x 62) (<= 62 main_x)), 47445#(and (<= 63 main_x) (<= main_x 63)), 47446#(and (<= 64 main_x) (<= main_x 64)), 47447#(and (<= main_x 65) (<= 65 main_x)), 47448#(and (<= main_x 66) (<= 66 main_x)), 47449#(and (<= 67 main_x) (<= main_x 67)), 47450#(and (<= main_x 68) (<= 68 main_x)), 47451#(and (<= 69 main_x) (<= main_x 69)), 47452#(and (<= main_x 70) (<= 70 main_x)), 47453#(and (<= 71 main_x) (<= main_x 71)), 47454#(and (<= main_x 72) (<= 72 main_x)), 47455#(and (<= main_x 73) (<= 73 main_x)), 47456#(and (<= 74 main_x) (<= main_x 74)), 47457#(and (<= main_x 75) (<= 75 main_x)), 47458#(and (<= main_x 76) (<= 76 main_x)), 47459#(and (<= 77 main_x) (<= main_x 77)), 47460#(and (<= 78 main_x) (<= main_x 78)), 47461#(and (<= 79 main_x) (<= main_x 79)), 47462#(and (<= main_x 80) (<= 80 main_x)), 47463#(and (<= 81 main_x) (<= main_x 81)), 47464#(and (<= 82 main_x) (<= main_x 82)), 47465#(and (<= 83 main_x) (<= main_x 83)), 47466#(and (<= main_x 84) (<= 84 main_x)), 47467#(and (<= 85 main_x) (<= main_x 85)), 47468#(and (<= 86 main_x) (<= main_x 86)), 47469#(and (<= 87 main_x) (<= main_x 87)), 47470#(and (<= 88 main_x) (<= main_x 88)), 47471#(and (<= 89 main_x) (<= main_x 89)), 47472#(and (<= 90 main_x) (<= main_x 90)), 47473#(and (<= main_x 91) (<= 91 main_x)), 47474#(and (<= main_x 92) (<= 92 main_x)), 47475#(and (<= 93 main_x) (<= main_x 93)), 47476#(and (<= 94 main_x) (<= main_x 94)), 47477#(and (<= 95 main_x) (<= main_x 95)), 47478#(and (<= 96 main_x) (<= main_x 96)), 47479#(and (<= main_x 97) (<= 97 main_x)), 47480#(and (<= main_x 98) (<= 98 main_x)), 47481#(and (<= 99 main_x) (<= main_x 99)), 47482#(and (<= main_x 100) (<= 100 main_x)), 47483#(and (<= 101 main_x) (<= main_x 101)), 47484#(and (<= main_x 102) (<= 102 main_x)), 47485#(and (<= main_x 103) (<= 103 main_x)), 47486#(and (<= main_x 104) (<= 104 main_x)), 47487#(and (<= main_x 105) (<= 105 main_x)), 47488#(and (<= 106 main_x) (<= main_x 106)), 47489#(and (<= main_x 107) (<= 107 main_x)), 47490#(and (<= 108 main_x) (<= main_x 108)), 47491#(and (<= 109 main_x) (<= main_x 109)), 47492#(and (<= main_x 110) (<= 110 main_x)), 47493#(and (<= main_x 111) (<= 111 main_x)), 47494#(and (<= main_x 112) (<= 112 main_x)), 47495#(and (<= main_x 113) (<= 113 main_x)), 47496#(and (<= 114 main_x) (<= main_x 114)), 47497#(and (<= 115 main_x) (<= main_x 115)), 47498#(and (<= 116 main_x) (<= main_x 116)), 47499#(and (<= 117 main_x) (<= main_x 117)), 47500#(and (<= 118 main_x) (<= main_x 118)), 47501#(and (<= main_x 119) (<= 119 main_x)), 47502#(and (<= main_x 120) (<= 120 main_x)), 47503#(and (<= 121 main_x) (<= main_x 121)), 47504#(and (<= 122 main_x) (<= main_x 122)), 47505#(and (<= main_x 123) (<= 123 main_x)), 47506#(and (<= main_x 124) (<= 124 main_x)), 47507#(and (<= main_x 125) (<= 125 main_x)), 47508#(and (<= 126 main_x) (<= main_x 126)), 47509#(and (<= main_x 127) (<= 127 main_x)), 47510#(and (<= main_x 128) (<= 128 main_x)), 47511#(and (<= 129 main_x) (<= main_x 129)), 47512#(and (<= main_x 130) (<= 130 main_x)), 47513#(and (<= main_x 131) (<= 131 main_x)), 47514#(and (<= 132 main_x) (<= main_x 132)), 47515#(and (<= main_x 133) (<= 133 main_x)), 47516#(or (<= (+ main_x 122) 0) (<= 134 main_x))] [2018-07-23 13:52:58,089 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 13:52:58,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:52:58,090 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:52:58,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=18361, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:52:58,091 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand 137 states. [2018-07-23 13:52:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:59,371 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:52:59,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:52:59,371 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 136 [2018-07-23 13:52:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:59,372 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:52:59,372 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:52:59,373 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=18361, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:52:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:52:59,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:52:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:52:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:52:59,380 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 136 [2018-07-23 13:52:59,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:59,381 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:52:59,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:52:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:52:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:52:59,381 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:59,381 INFO L357 BasicCegarLoop]: trace histogram [135, 1, 1] [2018-07-23 13:52:59,382 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:59,382 INFO L82 PathProgramCache]: Analyzing trace with hash 392734104, now seen corresponding path program 135 times [2018-07-23 13:52:59,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:00,380 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 13:53:00,381 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:00,381 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:53:00,381 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:00,381 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 13:53:00,381 INFO L185 omatonBuilderFactory]: Interpolants [48128#(and (<= 55 main_x) (<= main_x 55)), 48129#(and (<= main_x 56) (<= 56 main_x)), 48130#(and (<= main_x 57) (<= 57 main_x)), 48131#(and (<= 58 main_x) (<= main_x 58)), 48132#(and (<= 59 main_x) (<= main_x 59)), 48133#(and (<= main_x 60) (<= 60 main_x)), 48134#(and (<= main_x 61) (<= 61 main_x)), 48135#(and (<= main_x 62) (<= 62 main_x)), 48136#(and (<= 63 main_x) (<= main_x 63)), 48137#(and (<= 64 main_x) (<= main_x 64)), 48138#(and (<= main_x 65) (<= 65 main_x)), 48139#(and (<= main_x 66) (<= 66 main_x)), 48140#(and (<= 67 main_x) (<= main_x 67)), 48141#(and (<= main_x 68) (<= 68 main_x)), 48142#(and (<= 69 main_x) (<= main_x 69)), 48143#(and (<= main_x 70) (<= 70 main_x)), 48144#(and (<= 71 main_x) (<= main_x 71)), 48145#(and (<= main_x 72) (<= 72 main_x)), 48146#(and (<= main_x 73) (<= 73 main_x)), 48147#(and (<= 74 main_x) (<= main_x 74)), 48148#(and (<= main_x 75) (<= 75 main_x)), 48149#(and (<= main_x 76) (<= 76 main_x)), 48150#(and (<= 77 main_x) (<= main_x 77)), 48151#(and (<= 78 main_x) (<= main_x 78)), 48152#(and (<= 79 main_x) (<= main_x 79)), 48153#(and (<= main_x 80) (<= 80 main_x)), 48154#(and (<= 81 main_x) (<= main_x 81)), 48155#(and (<= 82 main_x) (<= main_x 82)), 48156#(and (<= 83 main_x) (<= main_x 83)), 48157#(and (<= main_x 84) (<= 84 main_x)), 48158#(and (<= 85 main_x) (<= main_x 85)), 48159#(and (<= 86 main_x) (<= main_x 86)), 48160#(and (<= 87 main_x) (<= main_x 87)), 48161#(and (<= 88 main_x) (<= main_x 88)), 48162#(and (<= 89 main_x) (<= main_x 89)), 48163#(and (<= 90 main_x) (<= main_x 90)), 48164#(and (<= main_x 91) (<= 91 main_x)), 48165#(and (<= main_x 92) (<= 92 main_x)), 48166#(and (<= 93 main_x) (<= main_x 93)), 48167#(and (<= 94 main_x) (<= main_x 94)), 48168#(and (<= 95 main_x) (<= main_x 95)), 48169#(and (<= 96 main_x) (<= main_x 96)), 48170#(and (<= main_x 97) (<= 97 main_x)), 48171#(and (<= main_x 98) (<= 98 main_x)), 48172#(and (<= 99 main_x) (<= main_x 99)), 48173#(and (<= main_x 100) (<= 100 main_x)), 48174#(and (<= 101 main_x) (<= main_x 101)), 48175#(and (<= main_x 102) (<= 102 main_x)), 48176#(and (<= main_x 103) (<= 103 main_x)), 48177#(and (<= main_x 104) (<= 104 main_x)), 48178#(and (<= main_x 105) (<= 105 main_x)), 48179#(and (<= 106 main_x) (<= main_x 106)), 48180#(and (<= main_x 107) (<= 107 main_x)), 48181#(and (<= 108 main_x) (<= main_x 108)), 48182#(and (<= 109 main_x) (<= main_x 109)), 48183#(and (<= main_x 110) (<= 110 main_x)), 48184#(and (<= main_x 111) (<= 111 main_x)), 48185#(and (<= main_x 112) (<= 112 main_x)), 48186#(and (<= main_x 113) (<= 113 main_x)), 48187#(and (<= 114 main_x) (<= main_x 114)), 48188#(and (<= 115 main_x) (<= main_x 115)), 48189#(and (<= 116 main_x) (<= main_x 116)), 48190#(and (<= 117 main_x) (<= main_x 117)), 48191#(and (<= 118 main_x) (<= main_x 118)), 48192#(and (<= main_x 119) (<= 119 main_x)), 48193#(and (<= main_x 120) (<= 120 main_x)), 48194#(and (<= 121 main_x) (<= main_x 121)), 48195#(and (<= 122 main_x) (<= main_x 122)), 48196#(and (<= main_x 123) (<= 123 main_x)), 48197#(and (<= main_x 124) (<= 124 main_x)), 48198#(and (<= main_x 125) (<= 125 main_x)), 48199#(and (<= 126 main_x) (<= main_x 126)), 48200#(and (<= main_x 127) (<= 127 main_x)), 48201#(and (<= main_x 128) (<= 128 main_x)), 48202#(and (<= 129 main_x) (<= main_x 129)), 48203#(and (<= main_x 130) (<= 130 main_x)), 48204#(and (<= main_x 131) (<= 131 main_x)), 48205#(and (<= 132 main_x) (<= main_x 132)), 48206#(and (<= main_x 133) (<= 133 main_x)), 48207#(and (<= main_x 134) (<= 134 main_x)), 48208#(or (<= 135 main_x) (<= (+ main_x 121) 0)), 48071#true, 48072#false, 48073#(and (<= main_x 0) (<= 0 main_x)), 48074#(and (<= 1 main_x) (<= main_x 1)), 48075#(and (<= 2 main_x) (<= main_x 2)), 48076#(and (<= 3 main_x) (<= main_x 3)), 48077#(and (<= main_x 4) (<= 4 main_x)), 48078#(and (<= 5 main_x) (<= main_x 5)), 48079#(and (<= 6 main_x) (<= main_x 6)), 48080#(and (<= main_x 7) (<= 7 main_x)), 48081#(and (<= main_x 8) (<= 8 main_x)), 48082#(and (<= 9 main_x) (<= main_x 9)), 48083#(and (<= main_x 10) (<= 10 main_x)), 48084#(and (<= 11 main_x) (<= main_x 11)), 48085#(and (<= 12 main_x) (<= main_x 12)), 48086#(and (<= 13 main_x) (<= main_x 13)), 48087#(and (<= 14 main_x) (<= main_x 14)), 48088#(and (<= 15 main_x) (<= main_x 15)), 48089#(and (<= main_x 16) (<= 16 main_x)), 48090#(and (<= 17 main_x) (<= main_x 17)), 48091#(and (<= main_x 18) (<= 18 main_x)), 48092#(and (<= main_x 19) (<= 19 main_x)), 48093#(and (<= 20 main_x) (<= main_x 20)), 48094#(and (<= 21 main_x) (<= main_x 21)), 48095#(and (<= main_x 22) (<= 22 main_x)), 48096#(and (<= 23 main_x) (<= main_x 23)), 48097#(and (<= main_x 24) (<= 24 main_x)), 48098#(and (<= main_x 25) (<= 25 main_x)), 48099#(and (<= main_x 26) (<= 26 main_x)), 48100#(and (<= main_x 27) (<= 27 main_x)), 48101#(and (<= main_x 28) (<= 28 main_x)), 48102#(and (<= main_x 29) (<= 29 main_x)), 48103#(and (<= 30 main_x) (<= main_x 30)), 48104#(and (<= 31 main_x) (<= main_x 31)), 48105#(and (<= 32 main_x) (<= main_x 32)), 48106#(and (<= main_x 33) (<= 33 main_x)), 48107#(and (<= 34 main_x) (<= main_x 34)), 48108#(and (<= main_x 35) (<= 35 main_x)), 48109#(and (<= main_x 36) (<= 36 main_x)), 48110#(and (<= 37 main_x) (<= main_x 37)), 48111#(and (<= 38 main_x) (<= main_x 38)), 48112#(and (<= 39 main_x) (<= main_x 39)), 48113#(and (<= main_x 40) (<= 40 main_x)), 48114#(and (<= 41 main_x) (<= main_x 41)), 48115#(and (<= 42 main_x) (<= main_x 42)), 48116#(and (<= 43 main_x) (<= main_x 43)), 48117#(and (<= main_x 44) (<= 44 main_x)), 48118#(and (<= 45 main_x) (<= main_x 45)), 48119#(and (<= 46 main_x) (<= main_x 46)), 48120#(and (<= 47 main_x) (<= main_x 47)), 48121#(and (<= 48 main_x) (<= main_x 48)), 48122#(and (<= main_x 49) (<= 49 main_x)), 48123#(and (<= main_x 50) (<= 50 main_x)), 48124#(and (<= main_x 51) (<= 51 main_x)), 48125#(and (<= 52 main_x) (<= main_x 52)), 48126#(and (<= main_x 53) (<= 53 main_x)), 48127#(and (<= 54 main_x) (<= main_x 54))] [2018-07-23 13:53:00,382 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 13:53:00,382 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:53:00,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:53:00,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=18633, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:53:00,383 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 138 states. [2018-07-23 13:53:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:01,664 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2018-07-23 13:53:01,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:53:01,664 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 137 [2018-07-23 13:53:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:01,664 INFO L225 Difference]: With dead ends: 140 [2018-07-23 13:53:01,665 INFO L226 Difference]: Without dead ends: 139 [2018-07-23 13:53:01,666 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=18633, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:53:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-07-23 13:53:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-07-23 13:53:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-07-23 13:53:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2018-07-23 13:53:01,671 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 137 [2018-07-23 13:53:01,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:01,671 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2018-07-23 13:53:01,671 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:53:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2018-07-23 13:53:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-23 13:53:01,672 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:01,672 INFO L357 BasicCegarLoop]: trace histogram [136, 1, 1] [2018-07-23 13:53:01,672 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:01,672 INFO L82 PathProgramCache]: Analyzing trace with hash -710144429, now seen corresponding path program 136 times [2018-07-23 13:53:01,672 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:02,655 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 13:53:02,656 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:02,656 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:53:02,656 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:02,656 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 13:53:02,656 INFO L185 omatonBuilderFactory]: Interpolants [48896#(and (<= main_x 127) (<= 127 main_x)), 48897#(and (<= main_x 128) (<= 128 main_x)), 48898#(and (<= 129 main_x) (<= main_x 129)), 48899#(and (<= main_x 130) (<= 130 main_x)), 48900#(and (<= main_x 131) (<= 131 main_x)), 48901#(and (<= 132 main_x) (<= main_x 132)), 48902#(and (<= main_x 133) (<= 133 main_x)), 48903#(and (<= main_x 134) (<= 134 main_x)), 48904#(and (<= main_x 135) (<= 135 main_x)), 48905#(or (<= (+ main_x 120) 0) (<= 136 main_x)), 48767#true, 48768#false, 48769#(and (<= main_x 0) (<= 0 main_x)), 48770#(and (<= 1 main_x) (<= main_x 1)), 48771#(and (<= 2 main_x) (<= main_x 2)), 48772#(and (<= 3 main_x) (<= main_x 3)), 48773#(and (<= main_x 4) (<= 4 main_x)), 48774#(and (<= 5 main_x) (<= main_x 5)), 48775#(and (<= 6 main_x) (<= main_x 6)), 48776#(and (<= main_x 7) (<= 7 main_x)), 48777#(and (<= main_x 8) (<= 8 main_x)), 48778#(and (<= 9 main_x) (<= main_x 9)), 48779#(and (<= main_x 10) (<= 10 main_x)), 48780#(and (<= 11 main_x) (<= main_x 11)), 48781#(and (<= 12 main_x) (<= main_x 12)), 48782#(and (<= 13 main_x) (<= main_x 13)), 48783#(and (<= 14 main_x) (<= main_x 14)), 48784#(and (<= 15 main_x) (<= main_x 15)), 48785#(and (<= main_x 16) (<= 16 main_x)), 48786#(and (<= 17 main_x) (<= main_x 17)), 48787#(and (<= main_x 18) (<= 18 main_x)), 48788#(and (<= main_x 19) (<= 19 main_x)), 48789#(and (<= 20 main_x) (<= main_x 20)), 48790#(and (<= 21 main_x) (<= main_x 21)), 48791#(and (<= main_x 22) (<= 22 main_x)), 48792#(and (<= 23 main_x) (<= main_x 23)), 48793#(and (<= main_x 24) (<= 24 main_x)), 48794#(and (<= main_x 25) (<= 25 main_x)), 48795#(and (<= main_x 26) (<= 26 main_x)), 48796#(and (<= main_x 27) (<= 27 main_x)), 48797#(and (<= main_x 28) (<= 28 main_x)), 48798#(and (<= main_x 29) (<= 29 main_x)), 48799#(and (<= 30 main_x) (<= main_x 30)), 48800#(and (<= 31 main_x) (<= main_x 31)), 48801#(and (<= 32 main_x) (<= main_x 32)), 48802#(and (<= main_x 33) (<= 33 main_x)), 48803#(and (<= 34 main_x) (<= main_x 34)), 48804#(and (<= main_x 35) (<= 35 main_x)), 48805#(and (<= main_x 36) (<= 36 main_x)), 48806#(and (<= 37 main_x) (<= main_x 37)), 48807#(and (<= 38 main_x) (<= main_x 38)), 48808#(and (<= 39 main_x) (<= main_x 39)), 48809#(and (<= main_x 40) (<= 40 main_x)), 48810#(and (<= 41 main_x) (<= main_x 41)), 48811#(and (<= 42 main_x) (<= main_x 42)), 48812#(and (<= 43 main_x) (<= main_x 43)), 48813#(and (<= main_x 44) (<= 44 main_x)), 48814#(and (<= 45 main_x) (<= main_x 45)), 48815#(and (<= 46 main_x) (<= main_x 46)), 48816#(and (<= 47 main_x) (<= main_x 47)), 48817#(and (<= 48 main_x) (<= main_x 48)), 48818#(and (<= main_x 49) (<= 49 main_x)), 48819#(and (<= main_x 50) (<= 50 main_x)), 48820#(and (<= main_x 51) (<= 51 main_x)), 48821#(and (<= 52 main_x) (<= main_x 52)), 48822#(and (<= main_x 53) (<= 53 main_x)), 48823#(and (<= 54 main_x) (<= main_x 54)), 48824#(and (<= 55 main_x) (<= main_x 55)), 48825#(and (<= main_x 56) (<= 56 main_x)), 48826#(and (<= main_x 57) (<= 57 main_x)), 48827#(and (<= 58 main_x) (<= main_x 58)), 48828#(and (<= 59 main_x) (<= main_x 59)), 48829#(and (<= main_x 60) (<= 60 main_x)), 48830#(and (<= main_x 61) (<= 61 main_x)), 48831#(and (<= main_x 62) (<= 62 main_x)), 48832#(and (<= 63 main_x) (<= main_x 63)), 48833#(and (<= 64 main_x) (<= main_x 64)), 48834#(and (<= main_x 65) (<= 65 main_x)), 48835#(and (<= main_x 66) (<= 66 main_x)), 48836#(and (<= 67 main_x) (<= main_x 67)), 48837#(and (<= main_x 68) (<= 68 main_x)), 48838#(and (<= 69 main_x) (<= main_x 69)), 48839#(and (<= main_x 70) (<= 70 main_x)), 48840#(and (<= 71 main_x) (<= main_x 71)), 48841#(and (<= main_x 72) (<= 72 main_x)), 48842#(and (<= main_x 73) (<= 73 main_x)), 48843#(and (<= 74 main_x) (<= main_x 74)), 48844#(and (<= main_x 75) (<= 75 main_x)), 48845#(and (<= main_x 76) (<= 76 main_x)), 48846#(and (<= 77 main_x) (<= main_x 77)), 48847#(and (<= 78 main_x) (<= main_x 78)), 48848#(and (<= 79 main_x) (<= main_x 79)), 48849#(and (<= main_x 80) (<= 80 main_x)), 48850#(and (<= 81 main_x) (<= main_x 81)), 48851#(and (<= 82 main_x) (<= main_x 82)), 48852#(and (<= 83 main_x) (<= main_x 83)), 48853#(and (<= main_x 84) (<= 84 main_x)), 48854#(and (<= 85 main_x) (<= main_x 85)), 48855#(and (<= 86 main_x) (<= main_x 86)), 48856#(and (<= 87 main_x) (<= main_x 87)), 48857#(and (<= 88 main_x) (<= main_x 88)), 48858#(and (<= 89 main_x) (<= main_x 89)), 48859#(and (<= 90 main_x) (<= main_x 90)), 48860#(and (<= main_x 91) (<= 91 main_x)), 48861#(and (<= main_x 92) (<= 92 main_x)), 48862#(and (<= 93 main_x) (<= main_x 93)), 48863#(and (<= 94 main_x) (<= main_x 94)), 48864#(and (<= 95 main_x) (<= main_x 95)), 48865#(and (<= 96 main_x) (<= main_x 96)), 48866#(and (<= main_x 97) (<= 97 main_x)), 48867#(and (<= main_x 98) (<= 98 main_x)), 48868#(and (<= 99 main_x) (<= main_x 99)), 48869#(and (<= main_x 100) (<= 100 main_x)), 48870#(and (<= 101 main_x) (<= main_x 101)), 48871#(and (<= main_x 102) (<= 102 main_x)), 48872#(and (<= main_x 103) (<= 103 main_x)), 48873#(and (<= main_x 104) (<= 104 main_x)), 48874#(and (<= main_x 105) (<= 105 main_x)), 48875#(and (<= 106 main_x) (<= main_x 106)), 48876#(and (<= main_x 107) (<= 107 main_x)), 48877#(and (<= 108 main_x) (<= main_x 108)), 48878#(and (<= 109 main_x) (<= main_x 109)), 48879#(and (<= main_x 110) (<= 110 main_x)), 48880#(and (<= main_x 111) (<= 111 main_x)), 48881#(and (<= main_x 112) (<= 112 main_x)), 48882#(and (<= main_x 113) (<= 113 main_x)), 48883#(and (<= 114 main_x) (<= main_x 114)), 48884#(and (<= 115 main_x) (<= main_x 115)), 48885#(and (<= 116 main_x) (<= main_x 116)), 48886#(and (<= 117 main_x) (<= main_x 117)), 48887#(and (<= 118 main_x) (<= main_x 118)), 48888#(and (<= main_x 119) (<= 119 main_x)), 48889#(and (<= main_x 120) (<= 120 main_x)), 48890#(and (<= 121 main_x) (<= main_x 121)), 48891#(and (<= 122 main_x) (<= main_x 122)), 48892#(and (<= main_x 123) (<= 123 main_x)), 48893#(and (<= main_x 124) (<= 124 main_x)), 48894#(and (<= main_x 125) (<= 125 main_x)), 48895#(and (<= 126 main_x) (<= main_x 126))] [2018-07-23 13:53:02,657 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 13:53:02,657 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:53:02,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:53:02,658 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=18907, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:53:02,658 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 139 states. [2018-07-23 13:53:04,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:04,000 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:53:04,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:53:04,000 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 138 [2018-07-23 13:53:04,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:04,000 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:53:04,001 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:53:04,001 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=18907, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:53:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:53:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:53:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:53:04,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:53:04,007 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 138 [2018-07-23 13:53:04,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:04,007 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:53:04,007 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:53:04,007 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:53:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:53:04,007 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:04,008 INFO L357 BasicCegarLoop]: trace histogram [137, 1, 1] [2018-07-23 13:53:04,008 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:04,008 INFO L82 PathProgramCache]: Analyzing trace with hash -539640584, now seen corresponding path program 137 times [2018-07-23 13:53:04,008 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:04,977 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 13:53:04,977 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:04,977 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:53:04,977 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:04,977 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 13:53:04,978 INFO L185 omatonBuilderFactory]: Interpolants [49468#true, 49469#false, 49470#(and (<= main_x 0) (<= 0 main_x)), 49471#(and (<= 1 main_x) (<= main_x 1)), 49472#(and (<= 2 main_x) (<= main_x 2)), 49473#(and (<= 3 main_x) (<= main_x 3)), 49474#(and (<= main_x 4) (<= 4 main_x)), 49475#(and (<= 5 main_x) (<= main_x 5)), 49476#(and (<= 6 main_x) (<= main_x 6)), 49477#(and (<= main_x 7) (<= 7 main_x)), 49478#(and (<= main_x 8) (<= 8 main_x)), 49479#(and (<= 9 main_x) (<= main_x 9)), 49480#(and (<= main_x 10) (<= 10 main_x)), 49481#(and (<= 11 main_x) (<= main_x 11)), 49482#(and (<= 12 main_x) (<= main_x 12)), 49483#(and (<= 13 main_x) (<= main_x 13)), 49484#(and (<= 14 main_x) (<= main_x 14)), 49485#(and (<= 15 main_x) (<= main_x 15)), 49486#(and (<= main_x 16) (<= 16 main_x)), 49487#(and (<= 17 main_x) (<= main_x 17)), 49488#(and (<= main_x 18) (<= 18 main_x)), 49489#(and (<= main_x 19) (<= 19 main_x)), 49490#(and (<= 20 main_x) (<= main_x 20)), 49491#(and (<= 21 main_x) (<= main_x 21)), 49492#(and (<= main_x 22) (<= 22 main_x)), 49493#(and (<= 23 main_x) (<= main_x 23)), 49494#(and (<= main_x 24) (<= 24 main_x)), 49495#(and (<= main_x 25) (<= 25 main_x)), 49496#(and (<= main_x 26) (<= 26 main_x)), 49497#(and (<= main_x 27) (<= 27 main_x)), 49498#(and (<= main_x 28) (<= 28 main_x)), 49499#(and (<= main_x 29) (<= 29 main_x)), 49500#(and (<= 30 main_x) (<= main_x 30)), 49501#(and (<= 31 main_x) (<= main_x 31)), 49502#(and (<= 32 main_x) (<= main_x 32)), 49503#(and (<= main_x 33) (<= 33 main_x)), 49504#(and (<= 34 main_x) (<= main_x 34)), 49505#(and (<= main_x 35) (<= 35 main_x)), 49506#(and (<= main_x 36) (<= 36 main_x)), 49507#(and (<= 37 main_x) (<= main_x 37)), 49508#(and (<= 38 main_x) (<= main_x 38)), 49509#(and (<= 39 main_x) (<= main_x 39)), 49510#(and (<= main_x 40) (<= 40 main_x)), 49511#(and (<= 41 main_x) (<= main_x 41)), 49512#(and (<= 42 main_x) (<= main_x 42)), 49513#(and (<= 43 main_x) (<= main_x 43)), 49514#(and (<= main_x 44) (<= 44 main_x)), 49515#(and (<= 45 main_x) (<= main_x 45)), 49516#(and (<= 46 main_x) (<= main_x 46)), 49517#(and (<= 47 main_x) (<= main_x 47)), 49518#(and (<= 48 main_x) (<= main_x 48)), 49519#(and (<= main_x 49) (<= 49 main_x)), 49520#(and (<= main_x 50) (<= 50 main_x)), 49521#(and (<= main_x 51) (<= 51 main_x)), 49522#(and (<= 52 main_x) (<= main_x 52)), 49523#(and (<= main_x 53) (<= 53 main_x)), 49524#(and (<= 54 main_x) (<= main_x 54)), 49525#(and (<= 55 main_x) (<= main_x 55)), 49526#(and (<= main_x 56) (<= 56 main_x)), 49527#(and (<= main_x 57) (<= 57 main_x)), 49528#(and (<= 58 main_x) (<= main_x 58)), 49529#(and (<= 59 main_x) (<= main_x 59)), 49530#(and (<= main_x 60) (<= 60 main_x)), 49531#(and (<= main_x 61) (<= 61 main_x)), 49532#(and (<= main_x 62) (<= 62 main_x)), 49533#(and (<= 63 main_x) (<= main_x 63)), 49534#(and (<= 64 main_x) (<= main_x 64)), 49535#(and (<= main_x 65) (<= 65 main_x)), 49536#(and (<= main_x 66) (<= 66 main_x)), 49537#(and (<= 67 main_x) (<= main_x 67)), 49538#(and (<= main_x 68) (<= 68 main_x)), 49539#(and (<= 69 main_x) (<= main_x 69)), 49540#(and (<= main_x 70) (<= 70 main_x)), 49541#(and (<= 71 main_x) (<= main_x 71)), 49542#(and (<= main_x 72) (<= 72 main_x)), 49543#(and (<= main_x 73) (<= 73 main_x)), 49544#(and (<= 74 main_x) (<= main_x 74)), 49545#(and (<= main_x 75) (<= 75 main_x)), 49546#(and (<= main_x 76) (<= 76 main_x)), 49547#(and (<= 77 main_x) (<= main_x 77)), 49548#(and (<= 78 main_x) (<= main_x 78)), 49549#(and (<= 79 main_x) (<= main_x 79)), 49550#(and (<= main_x 80) (<= 80 main_x)), 49551#(and (<= 81 main_x) (<= main_x 81)), 49552#(and (<= 82 main_x) (<= main_x 82)), 49553#(and (<= 83 main_x) (<= main_x 83)), 49554#(and (<= main_x 84) (<= 84 main_x)), 49555#(and (<= 85 main_x) (<= main_x 85)), 49556#(and (<= 86 main_x) (<= main_x 86)), 49557#(and (<= 87 main_x) (<= main_x 87)), 49558#(and (<= 88 main_x) (<= main_x 88)), 49559#(and (<= 89 main_x) (<= main_x 89)), 49560#(and (<= 90 main_x) (<= main_x 90)), 49561#(and (<= main_x 91) (<= 91 main_x)), 49562#(and (<= main_x 92) (<= 92 main_x)), 49563#(and (<= 93 main_x) (<= main_x 93)), 49564#(and (<= 94 main_x) (<= main_x 94)), 49565#(and (<= 95 main_x) (<= main_x 95)), 49566#(and (<= 96 main_x) (<= main_x 96)), 49567#(and (<= main_x 97) (<= 97 main_x)), 49568#(and (<= main_x 98) (<= 98 main_x)), 49569#(and (<= 99 main_x) (<= main_x 99)), 49570#(and (<= main_x 100) (<= 100 main_x)), 49571#(and (<= 101 main_x) (<= main_x 101)), 49572#(and (<= main_x 102) (<= 102 main_x)), 49573#(and (<= main_x 103) (<= 103 main_x)), 49574#(and (<= main_x 104) (<= 104 main_x)), 49575#(and (<= main_x 105) (<= 105 main_x)), 49576#(and (<= 106 main_x) (<= main_x 106)), 49577#(and (<= main_x 107) (<= 107 main_x)), 49578#(and (<= 108 main_x) (<= main_x 108)), 49579#(and (<= 109 main_x) (<= main_x 109)), 49580#(and (<= main_x 110) (<= 110 main_x)), 49581#(and (<= main_x 111) (<= 111 main_x)), 49582#(and (<= main_x 112) (<= 112 main_x)), 49583#(and (<= main_x 113) (<= 113 main_x)), 49584#(and (<= 114 main_x) (<= main_x 114)), 49585#(and (<= 115 main_x) (<= main_x 115)), 49586#(and (<= 116 main_x) (<= main_x 116)), 49587#(and (<= 117 main_x) (<= main_x 117)), 49588#(and (<= 118 main_x) (<= main_x 118)), 49589#(and (<= main_x 119) (<= 119 main_x)), 49590#(and (<= main_x 120) (<= 120 main_x)), 49591#(and (<= 121 main_x) (<= main_x 121)), 49592#(and (<= 122 main_x) (<= main_x 122)), 49593#(and (<= main_x 123) (<= 123 main_x)), 49594#(and (<= main_x 124) (<= 124 main_x)), 49595#(and (<= main_x 125) (<= 125 main_x)), 49596#(and (<= 126 main_x) (<= main_x 126)), 49597#(and (<= main_x 127) (<= 127 main_x)), 49598#(and (<= main_x 128) (<= 128 main_x)), 49599#(and (<= 129 main_x) (<= main_x 129)), 49600#(and (<= main_x 130) (<= 130 main_x)), 49601#(and (<= main_x 131) (<= 131 main_x)), 49602#(and (<= 132 main_x) (<= main_x 132)), 49603#(and (<= main_x 133) (<= 133 main_x)), 49604#(and (<= main_x 134) (<= 134 main_x)), 49605#(and (<= main_x 135) (<= 135 main_x)), 49606#(and (<= main_x 136) (<= 136 main_x)), 49607#(or (<= 137 main_x) (<= (+ main_x 119) 0))] [2018-07-23 13:53:04,978 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 13:53:04,978 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:53:04,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:53:04,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=19183, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:53:04,980 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 140 states. [2018-07-23 13:53:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:06,307 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2018-07-23 13:53:06,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:53:06,307 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 139 [2018-07-23 13:53:06,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:06,307 INFO L225 Difference]: With dead ends: 142 [2018-07-23 13:53:06,307 INFO L226 Difference]: Without dead ends: 141 [2018-07-23 13:53:06,309 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=277, Invalid=19183, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:53:06,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-07-23 13:53:06,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-07-23 13:53:06,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-07-23 13:53:06,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2018-07-23 13:53:06,314 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 139 [2018-07-23 13:53:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:06,314 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2018-07-23 13:53:06,314 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:53:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2018-07-23 13:53:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-07-23 13:53:06,315 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:06,315 INFO L357 BasicCegarLoop]: trace histogram [138, 1, 1] [2018-07-23 13:53:06,315 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:06,315 INFO L82 PathProgramCache]: Analyzing trace with hash 451011315, now seen corresponding path program 138 times [2018-07-23 13:53:06,315 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:07,201 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 13:53:07,202 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:07,202 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:53:07,202 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:07,202 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 13:53:07,202 INFO L185 omatonBuilderFactory]: Interpolants [50176#(and (<= main_x 0) (<= 0 main_x)), 50177#(and (<= 1 main_x) (<= main_x 1)), 50178#(and (<= 2 main_x) (<= main_x 2)), 50179#(and (<= 3 main_x) (<= main_x 3)), 50180#(and (<= main_x 4) (<= 4 main_x)), 50181#(and (<= 5 main_x) (<= main_x 5)), 50182#(and (<= 6 main_x) (<= main_x 6)), 50183#(and (<= main_x 7) (<= 7 main_x)), 50184#(and (<= main_x 8) (<= 8 main_x)), 50185#(and (<= 9 main_x) (<= main_x 9)), 50186#(and (<= main_x 10) (<= 10 main_x)), 50187#(and (<= 11 main_x) (<= main_x 11)), 50188#(and (<= 12 main_x) (<= main_x 12)), 50189#(and (<= 13 main_x) (<= main_x 13)), 50190#(and (<= 14 main_x) (<= main_x 14)), 50191#(and (<= 15 main_x) (<= main_x 15)), 50192#(and (<= main_x 16) (<= 16 main_x)), 50193#(and (<= 17 main_x) (<= main_x 17)), 50194#(and (<= main_x 18) (<= 18 main_x)), 50195#(and (<= main_x 19) (<= 19 main_x)), 50196#(and (<= 20 main_x) (<= main_x 20)), 50197#(and (<= 21 main_x) (<= main_x 21)), 50198#(and (<= main_x 22) (<= 22 main_x)), 50199#(and (<= 23 main_x) (<= main_x 23)), 50200#(and (<= main_x 24) (<= 24 main_x)), 50201#(and (<= main_x 25) (<= 25 main_x)), 50202#(and (<= main_x 26) (<= 26 main_x)), 50203#(and (<= main_x 27) (<= 27 main_x)), 50204#(and (<= main_x 28) (<= 28 main_x)), 50205#(and (<= main_x 29) (<= 29 main_x)), 50206#(and (<= 30 main_x) (<= main_x 30)), 50207#(and (<= 31 main_x) (<= main_x 31)), 50208#(and (<= 32 main_x) (<= main_x 32)), 50209#(and (<= main_x 33) (<= 33 main_x)), 50210#(and (<= 34 main_x) (<= main_x 34)), 50211#(and (<= main_x 35) (<= 35 main_x)), 50212#(and (<= main_x 36) (<= 36 main_x)), 50213#(and (<= 37 main_x) (<= main_x 37)), 50214#(and (<= 38 main_x) (<= main_x 38)), 50215#(and (<= 39 main_x) (<= main_x 39)), 50216#(and (<= main_x 40) (<= 40 main_x)), 50217#(and (<= 41 main_x) (<= main_x 41)), 50218#(and (<= 42 main_x) (<= main_x 42)), 50219#(and (<= 43 main_x) (<= main_x 43)), 50220#(and (<= main_x 44) (<= 44 main_x)), 50221#(and (<= 45 main_x) (<= main_x 45)), 50222#(and (<= 46 main_x) (<= main_x 46)), 50223#(and (<= 47 main_x) (<= main_x 47)), 50224#(and (<= 48 main_x) (<= main_x 48)), 50225#(and (<= main_x 49) (<= 49 main_x)), 50226#(and (<= main_x 50) (<= 50 main_x)), 50227#(and (<= main_x 51) (<= 51 main_x)), 50228#(and (<= 52 main_x) (<= main_x 52)), 50229#(and (<= main_x 53) (<= 53 main_x)), 50230#(and (<= 54 main_x) (<= main_x 54)), 50231#(and (<= 55 main_x) (<= main_x 55)), 50232#(and (<= main_x 56) (<= 56 main_x)), 50233#(and (<= main_x 57) (<= 57 main_x)), 50234#(and (<= 58 main_x) (<= main_x 58)), 50235#(and (<= 59 main_x) (<= main_x 59)), 50236#(and (<= main_x 60) (<= 60 main_x)), 50237#(and (<= main_x 61) (<= 61 main_x)), 50238#(and (<= main_x 62) (<= 62 main_x)), 50239#(and (<= 63 main_x) (<= main_x 63)), 50240#(and (<= 64 main_x) (<= main_x 64)), 50241#(and (<= main_x 65) (<= 65 main_x)), 50242#(and (<= main_x 66) (<= 66 main_x)), 50243#(and (<= 67 main_x) (<= main_x 67)), 50244#(and (<= main_x 68) (<= 68 main_x)), 50245#(and (<= 69 main_x) (<= main_x 69)), 50246#(and (<= main_x 70) (<= 70 main_x)), 50247#(and (<= 71 main_x) (<= main_x 71)), 50248#(and (<= main_x 72) (<= 72 main_x)), 50249#(and (<= main_x 73) (<= 73 main_x)), 50250#(and (<= 74 main_x) (<= main_x 74)), 50251#(and (<= main_x 75) (<= 75 main_x)), 50252#(and (<= main_x 76) (<= 76 main_x)), 50253#(and (<= 77 main_x) (<= main_x 77)), 50254#(and (<= 78 main_x) (<= main_x 78)), 50255#(and (<= 79 main_x) (<= main_x 79)), 50256#(and (<= main_x 80) (<= 80 main_x)), 50257#(and (<= 81 main_x) (<= main_x 81)), 50258#(and (<= 82 main_x) (<= main_x 82)), 50259#(and (<= 83 main_x) (<= main_x 83)), 50260#(and (<= main_x 84) (<= 84 main_x)), 50261#(and (<= 85 main_x) (<= main_x 85)), 50262#(and (<= 86 main_x) (<= main_x 86)), 50263#(and (<= 87 main_x) (<= main_x 87)), 50264#(and (<= 88 main_x) (<= main_x 88)), 50265#(and (<= 89 main_x) (<= main_x 89)), 50266#(and (<= 90 main_x) (<= main_x 90)), 50267#(and (<= main_x 91) (<= 91 main_x)), 50268#(and (<= main_x 92) (<= 92 main_x)), 50269#(and (<= 93 main_x) (<= main_x 93)), 50270#(and (<= 94 main_x) (<= main_x 94)), 50271#(and (<= 95 main_x) (<= main_x 95)), 50272#(and (<= 96 main_x) (<= main_x 96)), 50273#(and (<= main_x 97) (<= 97 main_x)), 50274#(and (<= main_x 98) (<= 98 main_x)), 50275#(and (<= 99 main_x) (<= main_x 99)), 50276#(and (<= main_x 100) (<= 100 main_x)), 50277#(and (<= 101 main_x) (<= main_x 101)), 50278#(and (<= main_x 102) (<= 102 main_x)), 50279#(and (<= main_x 103) (<= 103 main_x)), 50280#(and (<= main_x 104) (<= 104 main_x)), 50281#(and (<= main_x 105) (<= 105 main_x)), 50282#(and (<= 106 main_x) (<= main_x 106)), 50283#(and (<= main_x 107) (<= 107 main_x)), 50284#(and (<= 108 main_x) (<= main_x 108)), 50285#(and (<= 109 main_x) (<= main_x 109)), 50286#(and (<= main_x 110) (<= 110 main_x)), 50287#(and (<= main_x 111) (<= 111 main_x)), 50288#(and (<= main_x 112) (<= 112 main_x)), 50289#(and (<= main_x 113) (<= 113 main_x)), 50290#(and (<= 114 main_x) (<= main_x 114)), 50291#(and (<= 115 main_x) (<= main_x 115)), 50292#(and (<= 116 main_x) (<= main_x 116)), 50293#(and (<= 117 main_x) (<= main_x 117)), 50294#(and (<= 118 main_x) (<= main_x 118)), 50295#(and (<= main_x 119) (<= 119 main_x)), 50296#(and (<= main_x 120) (<= 120 main_x)), 50297#(and (<= 121 main_x) (<= main_x 121)), 50298#(and (<= 122 main_x) (<= main_x 122)), 50299#(and (<= main_x 123) (<= 123 main_x)), 50300#(and (<= main_x 124) (<= 124 main_x)), 50301#(and (<= main_x 125) (<= 125 main_x)), 50302#(and (<= 126 main_x) (<= main_x 126)), 50303#(and (<= main_x 127) (<= 127 main_x)), 50304#(and (<= main_x 128) (<= 128 main_x)), 50305#(and (<= 129 main_x) (<= main_x 129)), 50306#(and (<= main_x 130) (<= 130 main_x)), 50307#(and (<= main_x 131) (<= 131 main_x)), 50308#(and (<= 132 main_x) (<= main_x 132)), 50309#(and (<= main_x 133) (<= 133 main_x)), 50310#(and (<= main_x 134) (<= 134 main_x)), 50311#(and (<= main_x 135) (<= 135 main_x)), 50312#(and (<= main_x 136) (<= 136 main_x)), 50313#(and (<= 137 main_x) (<= main_x 137)), 50314#(or (<= (+ main_x 118) 0) (<= 138 main_x)), 50174#true, 50175#false] [2018-07-23 13:53:07,203 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 13:53:07,203 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:53:07,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:53:07,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=19461, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:53:07,204 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand 141 states. [2018-07-23 13:53:08,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:08,464 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:53:08,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:53:08,464 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 140 [2018-07-23 13:53:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:08,464 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:53:08,464 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:53:08,465 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=279, Invalid=19461, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:53:08,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:53:08,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:53:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:53:08,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:53:08,469 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 140 [2018-07-23 13:53:08,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:08,470 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:53:08,470 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:53:08,470 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:53:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:53:08,470 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:08,470 INFO L357 BasicCegarLoop]: trace histogram [139, 1, 1] [2018-07-23 13:53:08,470 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:08,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1096449112, now seen corresponding path program 139 times [2018-07-23 13:53:08,471 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:09,350 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 13:53:09,351 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:09,351 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:53:09,351 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:09,351 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 13:53:09,351 INFO L185 omatonBuilderFactory]: Interpolants [50944#(and (<= main_x 57) (<= 57 main_x)), 50945#(and (<= 58 main_x) (<= main_x 58)), 50946#(and (<= 59 main_x) (<= main_x 59)), 50947#(and (<= main_x 60) (<= 60 main_x)), 50948#(and (<= main_x 61) (<= 61 main_x)), 50949#(and (<= main_x 62) (<= 62 main_x)), 50950#(and (<= 63 main_x) (<= main_x 63)), 50951#(and (<= 64 main_x) (<= main_x 64)), 50952#(and (<= main_x 65) (<= 65 main_x)), 50953#(and (<= main_x 66) (<= 66 main_x)), 50954#(and (<= 67 main_x) (<= main_x 67)), 50955#(and (<= main_x 68) (<= 68 main_x)), 50956#(and (<= 69 main_x) (<= main_x 69)), 50957#(and (<= main_x 70) (<= 70 main_x)), 50958#(and (<= 71 main_x) (<= main_x 71)), 50959#(and (<= main_x 72) (<= 72 main_x)), 50960#(and (<= main_x 73) (<= 73 main_x)), 50961#(and (<= 74 main_x) (<= main_x 74)), 50962#(and (<= main_x 75) (<= 75 main_x)), 50963#(and (<= main_x 76) (<= 76 main_x)), 50964#(and (<= 77 main_x) (<= main_x 77)), 50965#(and (<= 78 main_x) (<= main_x 78)), 50966#(and (<= 79 main_x) (<= main_x 79)), 50967#(and (<= main_x 80) (<= 80 main_x)), 50968#(and (<= 81 main_x) (<= main_x 81)), 50969#(and (<= 82 main_x) (<= main_x 82)), 50970#(and (<= 83 main_x) (<= main_x 83)), 50971#(and (<= main_x 84) (<= 84 main_x)), 50972#(and (<= 85 main_x) (<= main_x 85)), 50973#(and (<= 86 main_x) (<= main_x 86)), 50974#(and (<= 87 main_x) (<= main_x 87)), 50975#(and (<= 88 main_x) (<= main_x 88)), 50976#(and (<= 89 main_x) (<= main_x 89)), 50977#(and (<= 90 main_x) (<= main_x 90)), 50978#(and (<= main_x 91) (<= 91 main_x)), 50979#(and (<= main_x 92) (<= 92 main_x)), 50980#(and (<= 93 main_x) (<= main_x 93)), 50981#(and (<= 94 main_x) (<= main_x 94)), 50982#(and (<= 95 main_x) (<= main_x 95)), 50983#(and (<= 96 main_x) (<= main_x 96)), 50984#(and (<= main_x 97) (<= 97 main_x)), 50985#(and (<= main_x 98) (<= 98 main_x)), 50986#(and (<= 99 main_x) (<= main_x 99)), 50987#(and (<= main_x 100) (<= 100 main_x)), 50988#(and (<= 101 main_x) (<= main_x 101)), 50989#(and (<= main_x 102) (<= 102 main_x)), 50990#(and (<= main_x 103) (<= 103 main_x)), 50991#(and (<= main_x 104) (<= 104 main_x)), 50992#(and (<= main_x 105) (<= 105 main_x)), 50993#(and (<= 106 main_x) (<= main_x 106)), 50994#(and (<= main_x 107) (<= 107 main_x)), 50995#(and (<= 108 main_x) (<= main_x 108)), 50996#(and (<= 109 main_x) (<= main_x 109)), 50997#(and (<= main_x 110) (<= 110 main_x)), 50998#(and (<= main_x 111) (<= 111 main_x)), 50999#(and (<= main_x 112) (<= 112 main_x)), 51000#(and (<= main_x 113) (<= 113 main_x)), 51001#(and (<= 114 main_x) (<= main_x 114)), 51002#(and (<= 115 main_x) (<= main_x 115)), 51003#(and (<= 116 main_x) (<= main_x 116)), 51004#(and (<= 117 main_x) (<= main_x 117)), 51005#(and (<= 118 main_x) (<= main_x 118)), 51006#(and (<= main_x 119) (<= 119 main_x)), 51007#(and (<= main_x 120) (<= 120 main_x)), 51008#(and (<= 121 main_x) (<= main_x 121)), 51009#(and (<= 122 main_x) (<= main_x 122)), 51010#(and (<= main_x 123) (<= 123 main_x)), 51011#(and (<= main_x 124) (<= 124 main_x)), 51012#(and (<= main_x 125) (<= 125 main_x)), 51013#(and (<= 126 main_x) (<= main_x 126)), 51014#(and (<= main_x 127) (<= 127 main_x)), 51015#(and (<= main_x 128) (<= 128 main_x)), 51016#(and (<= 129 main_x) (<= main_x 129)), 51017#(and (<= main_x 130) (<= 130 main_x)), 51018#(and (<= main_x 131) (<= 131 main_x)), 51019#(and (<= 132 main_x) (<= main_x 132)), 51020#(and (<= main_x 133) (<= 133 main_x)), 51021#(and (<= main_x 134) (<= 134 main_x)), 51022#(and (<= main_x 135) (<= 135 main_x)), 51023#(and (<= main_x 136) (<= 136 main_x)), 51024#(and (<= 137 main_x) (<= main_x 137)), 51025#(and (<= main_x 138) (<= 138 main_x)), 51026#(or (<= (+ main_x 117) 0) (<= 139 main_x)), 50885#true, 50886#false, 50887#(and (<= main_x 0) (<= 0 main_x)), 50888#(and (<= 1 main_x) (<= main_x 1)), 50889#(and (<= 2 main_x) (<= main_x 2)), 50890#(and (<= 3 main_x) (<= main_x 3)), 50891#(and (<= main_x 4) (<= 4 main_x)), 50892#(and (<= 5 main_x) (<= main_x 5)), 50893#(and (<= 6 main_x) (<= main_x 6)), 50894#(and (<= main_x 7) (<= 7 main_x)), 50895#(and (<= main_x 8) (<= 8 main_x)), 50896#(and (<= 9 main_x) (<= main_x 9)), 50897#(and (<= main_x 10) (<= 10 main_x)), 50898#(and (<= 11 main_x) (<= main_x 11)), 50899#(and (<= 12 main_x) (<= main_x 12)), 50900#(and (<= 13 main_x) (<= main_x 13)), 50901#(and (<= 14 main_x) (<= main_x 14)), 50902#(and (<= 15 main_x) (<= main_x 15)), 50903#(and (<= main_x 16) (<= 16 main_x)), 50904#(and (<= 17 main_x) (<= main_x 17)), 50905#(and (<= main_x 18) (<= 18 main_x)), 50906#(and (<= main_x 19) (<= 19 main_x)), 50907#(and (<= 20 main_x) (<= main_x 20)), 50908#(and (<= 21 main_x) (<= main_x 21)), 50909#(and (<= main_x 22) (<= 22 main_x)), 50910#(and (<= 23 main_x) (<= main_x 23)), 50911#(and (<= main_x 24) (<= 24 main_x)), 50912#(and (<= main_x 25) (<= 25 main_x)), 50913#(and (<= main_x 26) (<= 26 main_x)), 50914#(and (<= main_x 27) (<= 27 main_x)), 50915#(and (<= main_x 28) (<= 28 main_x)), 50916#(and (<= main_x 29) (<= 29 main_x)), 50917#(and (<= 30 main_x) (<= main_x 30)), 50918#(and (<= 31 main_x) (<= main_x 31)), 50919#(and (<= 32 main_x) (<= main_x 32)), 50920#(and (<= main_x 33) (<= 33 main_x)), 50921#(and (<= 34 main_x) (<= main_x 34)), 50922#(and (<= main_x 35) (<= 35 main_x)), 50923#(and (<= main_x 36) (<= 36 main_x)), 50924#(and (<= 37 main_x) (<= main_x 37)), 50925#(and (<= 38 main_x) (<= main_x 38)), 50926#(and (<= 39 main_x) (<= main_x 39)), 50927#(and (<= main_x 40) (<= 40 main_x)), 50928#(and (<= 41 main_x) (<= main_x 41)), 50929#(and (<= 42 main_x) (<= main_x 42)), 50930#(and (<= 43 main_x) (<= main_x 43)), 50931#(and (<= main_x 44) (<= 44 main_x)), 50932#(and (<= 45 main_x) (<= main_x 45)), 50933#(and (<= 46 main_x) (<= main_x 46)), 50934#(and (<= 47 main_x) (<= main_x 47)), 50935#(and (<= 48 main_x) (<= main_x 48)), 50936#(and (<= main_x 49) (<= 49 main_x)), 50937#(and (<= main_x 50) (<= 50 main_x)), 50938#(and (<= main_x 51) (<= 51 main_x)), 50939#(and (<= 52 main_x) (<= main_x 52)), 50940#(and (<= main_x 53) (<= 53 main_x)), 50941#(and (<= 54 main_x) (<= main_x 54)), 50942#(and (<= 55 main_x) (<= main_x 55)), 50943#(and (<= main_x 56) (<= 56 main_x))] [2018-07-23 13:53:09,352 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 13:53:09,352 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:53:09,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:53:09,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=19741, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:53:09,353 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 142 states. [2018-07-23 13:53:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:10,671 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2018-07-23 13:53:10,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:53:10,671 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 141 [2018-07-23 13:53:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:10,672 INFO L225 Difference]: With dead ends: 144 [2018-07-23 13:53:10,672 INFO L226 Difference]: Without dead ends: 143 [2018-07-23 13:53:10,673 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=281, Invalid=19741, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:53:10,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-07-23 13:53:10,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2018-07-23 13:53:10,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-23 13:53:10,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2018-07-23 13:53:10,679 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 141 [2018-07-23 13:53:10,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:10,679 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2018-07-23 13:53:10,679 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:53:10,679 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2018-07-23 13:53:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-23 13:53:10,680 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:10,680 INFO L357 BasicCegarLoop]: trace histogram [140, 1, 1] [2018-07-23 13:53:10,680 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:10,680 INFO L82 PathProgramCache]: Analyzing trace with hash -369815661, now seen corresponding path program 140 times [2018-07-23 13:53:10,680 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:11,760 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 13:53:11,761 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:11,761 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:53:11,761 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:11,761 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 13:53:11,761 INFO L185 omatonBuilderFactory]: Interpolants [51712#(and (<= 109 main_x) (<= main_x 109)), 51713#(and (<= main_x 110) (<= 110 main_x)), 51714#(and (<= main_x 111) (<= 111 main_x)), 51715#(and (<= main_x 112) (<= 112 main_x)), 51716#(and (<= main_x 113) (<= 113 main_x)), 51717#(and (<= 114 main_x) (<= main_x 114)), 51718#(and (<= 115 main_x) (<= main_x 115)), 51719#(and (<= 116 main_x) (<= main_x 116)), 51720#(and (<= 117 main_x) (<= main_x 117)), 51721#(and (<= 118 main_x) (<= main_x 118)), 51722#(and (<= main_x 119) (<= 119 main_x)), 51723#(and (<= main_x 120) (<= 120 main_x)), 51724#(and (<= 121 main_x) (<= main_x 121)), 51725#(and (<= 122 main_x) (<= main_x 122)), 51726#(and (<= main_x 123) (<= 123 main_x)), 51727#(and (<= main_x 124) (<= 124 main_x)), 51728#(and (<= main_x 125) (<= 125 main_x)), 51729#(and (<= 126 main_x) (<= main_x 126)), 51730#(and (<= main_x 127) (<= 127 main_x)), 51731#(and (<= main_x 128) (<= 128 main_x)), 51732#(and (<= 129 main_x) (<= main_x 129)), 51733#(and (<= main_x 130) (<= 130 main_x)), 51734#(and (<= main_x 131) (<= 131 main_x)), 51735#(and (<= 132 main_x) (<= main_x 132)), 51736#(and (<= main_x 133) (<= 133 main_x)), 51737#(and (<= main_x 134) (<= 134 main_x)), 51738#(and (<= main_x 135) (<= 135 main_x)), 51739#(and (<= main_x 136) (<= 136 main_x)), 51740#(and (<= 137 main_x) (<= main_x 137)), 51741#(and (<= main_x 138) (<= 138 main_x)), 51742#(and (<= main_x 139) (<= 139 main_x)), 51743#(or (<= (+ main_x 116) 0) (<= 140 main_x)), 51601#true, 51602#false, 51603#(and (<= main_x 0) (<= 0 main_x)), 51604#(and (<= 1 main_x) (<= main_x 1)), 51605#(and (<= 2 main_x) (<= main_x 2)), 51606#(and (<= 3 main_x) (<= main_x 3)), 51607#(and (<= main_x 4) (<= 4 main_x)), 51608#(and (<= 5 main_x) (<= main_x 5)), 51609#(and (<= 6 main_x) (<= main_x 6)), 51610#(and (<= main_x 7) (<= 7 main_x)), 51611#(and (<= main_x 8) (<= 8 main_x)), 51612#(and (<= 9 main_x) (<= main_x 9)), 51613#(and (<= main_x 10) (<= 10 main_x)), 51614#(and (<= 11 main_x) (<= main_x 11)), 51615#(and (<= 12 main_x) (<= main_x 12)), 51616#(and (<= 13 main_x) (<= main_x 13)), 51617#(and (<= 14 main_x) (<= main_x 14)), 51618#(and (<= 15 main_x) (<= main_x 15)), 51619#(and (<= main_x 16) (<= 16 main_x)), 51620#(and (<= 17 main_x) (<= main_x 17)), 51621#(and (<= main_x 18) (<= 18 main_x)), 51622#(and (<= main_x 19) (<= 19 main_x)), 51623#(and (<= 20 main_x) (<= main_x 20)), 51624#(and (<= 21 main_x) (<= main_x 21)), 51625#(and (<= main_x 22) (<= 22 main_x)), 51626#(and (<= 23 main_x) (<= main_x 23)), 51627#(and (<= main_x 24) (<= 24 main_x)), 51628#(and (<= main_x 25) (<= 25 main_x)), 51629#(and (<= main_x 26) (<= 26 main_x)), 51630#(and (<= main_x 27) (<= 27 main_x)), 51631#(and (<= main_x 28) (<= 28 main_x)), 51632#(and (<= main_x 29) (<= 29 main_x)), 51633#(and (<= 30 main_x) (<= main_x 30)), 51634#(and (<= 31 main_x) (<= main_x 31)), 51635#(and (<= 32 main_x) (<= main_x 32)), 51636#(and (<= main_x 33) (<= 33 main_x)), 51637#(and (<= 34 main_x) (<= main_x 34)), 51638#(and (<= main_x 35) (<= 35 main_x)), 51639#(and (<= main_x 36) (<= 36 main_x)), 51640#(and (<= 37 main_x) (<= main_x 37)), 51641#(and (<= 38 main_x) (<= main_x 38)), 51642#(and (<= 39 main_x) (<= main_x 39)), 51643#(and (<= main_x 40) (<= 40 main_x)), 51644#(and (<= 41 main_x) (<= main_x 41)), 51645#(and (<= 42 main_x) (<= main_x 42)), 51646#(and (<= 43 main_x) (<= main_x 43)), 51647#(and (<= main_x 44) (<= 44 main_x)), 51648#(and (<= 45 main_x) (<= main_x 45)), 51649#(and (<= 46 main_x) (<= main_x 46)), 51650#(and (<= 47 main_x) (<= main_x 47)), 51651#(and (<= 48 main_x) (<= main_x 48)), 51652#(and (<= main_x 49) (<= 49 main_x)), 51653#(and (<= main_x 50) (<= 50 main_x)), 51654#(and (<= main_x 51) (<= 51 main_x)), 51655#(and (<= 52 main_x) (<= main_x 52)), 51656#(and (<= main_x 53) (<= 53 main_x)), 51657#(and (<= 54 main_x) (<= main_x 54)), 51658#(and (<= 55 main_x) (<= main_x 55)), 51659#(and (<= main_x 56) (<= 56 main_x)), 51660#(and (<= main_x 57) (<= 57 main_x)), 51661#(and (<= 58 main_x) (<= main_x 58)), 51662#(and (<= 59 main_x) (<= main_x 59)), 51663#(and (<= main_x 60) (<= 60 main_x)), 51664#(and (<= main_x 61) (<= 61 main_x)), 51665#(and (<= main_x 62) (<= 62 main_x)), 51666#(and (<= 63 main_x) (<= main_x 63)), 51667#(and (<= 64 main_x) (<= main_x 64)), 51668#(and (<= main_x 65) (<= 65 main_x)), 51669#(and (<= main_x 66) (<= 66 main_x)), 51670#(and (<= 67 main_x) (<= main_x 67)), 51671#(and (<= main_x 68) (<= 68 main_x)), 51672#(and (<= 69 main_x) (<= main_x 69)), 51673#(and (<= main_x 70) (<= 70 main_x)), 51674#(and (<= 71 main_x) (<= main_x 71)), 51675#(and (<= main_x 72) (<= 72 main_x)), 51676#(and (<= main_x 73) (<= 73 main_x)), 51677#(and (<= 74 main_x) (<= main_x 74)), 51678#(and (<= main_x 75) (<= 75 main_x)), 51679#(and (<= main_x 76) (<= 76 main_x)), 51680#(and (<= 77 main_x) (<= main_x 77)), 51681#(and (<= 78 main_x) (<= main_x 78)), 51682#(and (<= 79 main_x) (<= main_x 79)), 51683#(and (<= main_x 80) (<= 80 main_x)), 51684#(and (<= 81 main_x) (<= main_x 81)), 51685#(and (<= 82 main_x) (<= main_x 82)), 51686#(and (<= 83 main_x) (<= main_x 83)), 51687#(and (<= main_x 84) (<= 84 main_x)), 51688#(and (<= 85 main_x) (<= main_x 85)), 51689#(and (<= 86 main_x) (<= main_x 86)), 51690#(and (<= 87 main_x) (<= main_x 87)), 51691#(and (<= 88 main_x) (<= main_x 88)), 51692#(and (<= 89 main_x) (<= main_x 89)), 51693#(and (<= 90 main_x) (<= main_x 90)), 51694#(and (<= main_x 91) (<= 91 main_x)), 51695#(and (<= main_x 92) (<= 92 main_x)), 51696#(and (<= 93 main_x) (<= main_x 93)), 51697#(and (<= 94 main_x) (<= main_x 94)), 51698#(and (<= 95 main_x) (<= main_x 95)), 51699#(and (<= 96 main_x) (<= main_x 96)), 51700#(and (<= main_x 97) (<= 97 main_x)), 51701#(and (<= main_x 98) (<= 98 main_x)), 51702#(and (<= 99 main_x) (<= main_x 99)), 51703#(and (<= main_x 100) (<= 100 main_x)), 51704#(and (<= 101 main_x) (<= main_x 101)), 51705#(and (<= main_x 102) (<= 102 main_x)), 51706#(and (<= main_x 103) (<= 103 main_x)), 51707#(and (<= main_x 104) (<= 104 main_x)), 51708#(and (<= main_x 105) (<= 105 main_x)), 51709#(and (<= 106 main_x) (<= main_x 106)), 51710#(and (<= main_x 107) (<= 107 main_x)), 51711#(and (<= 108 main_x) (<= main_x 108))] [2018-07-23 13:53:11,762 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 13:53:11,762 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:53:11,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:53:11,763 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:53:11,763 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand 143 states. [2018-07-23 13:53:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:13,138 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:53:13,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:53:13,138 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 142 [2018-07-23 13:53:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:13,139 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:53:13,139 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:53:13,139 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=283, Invalid=20023, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:53:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:53:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:53:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:53:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:53:13,145 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 142 [2018-07-23 13:53:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:13,145 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:53:13,145 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:53:13,145 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:53:13,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:53:13,145 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:13,145 INFO L357 BasicCegarLoop]: trace histogram [141, 1, 1] [2018-07-23 13:53:13,146 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:13,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1420616632, now seen corresponding path program 141 times [2018-07-23 13:53:13,146 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:14,176 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 13:53:14,177 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:14,177 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:53:14,177 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:14,177 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 13:53:14,178 INFO L185 omatonBuilderFactory]: Interpolants [52322#true, 52323#false, 52324#(and (<= main_x 0) (<= 0 main_x)), 52325#(and (<= 1 main_x) (<= main_x 1)), 52326#(and (<= 2 main_x) (<= main_x 2)), 52327#(and (<= 3 main_x) (<= main_x 3)), 52328#(and (<= main_x 4) (<= 4 main_x)), 52329#(and (<= 5 main_x) (<= main_x 5)), 52330#(and (<= 6 main_x) (<= main_x 6)), 52331#(and (<= main_x 7) (<= 7 main_x)), 52332#(and (<= main_x 8) (<= 8 main_x)), 52333#(and (<= 9 main_x) (<= main_x 9)), 52334#(and (<= main_x 10) (<= 10 main_x)), 52335#(and (<= 11 main_x) (<= main_x 11)), 52336#(and (<= 12 main_x) (<= main_x 12)), 52337#(and (<= 13 main_x) (<= main_x 13)), 52338#(and (<= 14 main_x) (<= main_x 14)), 52339#(and (<= 15 main_x) (<= main_x 15)), 52340#(and (<= main_x 16) (<= 16 main_x)), 52341#(and (<= 17 main_x) (<= main_x 17)), 52342#(and (<= main_x 18) (<= 18 main_x)), 52343#(and (<= main_x 19) (<= 19 main_x)), 52344#(and (<= 20 main_x) (<= main_x 20)), 52345#(and (<= 21 main_x) (<= main_x 21)), 52346#(and (<= main_x 22) (<= 22 main_x)), 52347#(and (<= 23 main_x) (<= main_x 23)), 52348#(and (<= main_x 24) (<= 24 main_x)), 52349#(and (<= main_x 25) (<= 25 main_x)), 52350#(and (<= main_x 26) (<= 26 main_x)), 52351#(and (<= main_x 27) (<= 27 main_x)), 52352#(and (<= main_x 28) (<= 28 main_x)), 52353#(and (<= main_x 29) (<= 29 main_x)), 52354#(and (<= 30 main_x) (<= main_x 30)), 52355#(and (<= 31 main_x) (<= main_x 31)), 52356#(and (<= 32 main_x) (<= main_x 32)), 52357#(and (<= main_x 33) (<= 33 main_x)), 52358#(and (<= 34 main_x) (<= main_x 34)), 52359#(and (<= main_x 35) (<= 35 main_x)), 52360#(and (<= main_x 36) (<= 36 main_x)), 52361#(and (<= 37 main_x) (<= main_x 37)), 52362#(and (<= 38 main_x) (<= main_x 38)), 52363#(and (<= 39 main_x) (<= main_x 39)), 52364#(and (<= main_x 40) (<= 40 main_x)), 52365#(and (<= 41 main_x) (<= main_x 41)), 52366#(and (<= 42 main_x) (<= main_x 42)), 52367#(and (<= 43 main_x) (<= main_x 43)), 52368#(and (<= main_x 44) (<= 44 main_x)), 52369#(and (<= 45 main_x) (<= main_x 45)), 52370#(and (<= 46 main_x) (<= main_x 46)), 52371#(and (<= 47 main_x) (<= main_x 47)), 52372#(and (<= 48 main_x) (<= main_x 48)), 52373#(and (<= main_x 49) (<= 49 main_x)), 52374#(and (<= main_x 50) (<= 50 main_x)), 52375#(and (<= main_x 51) (<= 51 main_x)), 52376#(and (<= 52 main_x) (<= main_x 52)), 52377#(and (<= main_x 53) (<= 53 main_x)), 52378#(and (<= 54 main_x) (<= main_x 54)), 52379#(and (<= 55 main_x) (<= main_x 55)), 52380#(and (<= main_x 56) (<= 56 main_x)), 52381#(and (<= main_x 57) (<= 57 main_x)), 52382#(and (<= 58 main_x) (<= main_x 58)), 52383#(and (<= 59 main_x) (<= main_x 59)), 52384#(and (<= main_x 60) (<= 60 main_x)), 52385#(and (<= main_x 61) (<= 61 main_x)), 52386#(and (<= main_x 62) (<= 62 main_x)), 52387#(and (<= 63 main_x) (<= main_x 63)), 52388#(and (<= 64 main_x) (<= main_x 64)), 52389#(and (<= main_x 65) (<= 65 main_x)), 52390#(and (<= main_x 66) (<= 66 main_x)), 52391#(and (<= 67 main_x) (<= main_x 67)), 52392#(and (<= main_x 68) (<= 68 main_x)), 52393#(and (<= 69 main_x) (<= main_x 69)), 52394#(and (<= main_x 70) (<= 70 main_x)), 52395#(and (<= 71 main_x) (<= main_x 71)), 52396#(and (<= main_x 72) (<= 72 main_x)), 52397#(and (<= main_x 73) (<= 73 main_x)), 52398#(and (<= 74 main_x) (<= main_x 74)), 52399#(and (<= main_x 75) (<= 75 main_x)), 52400#(and (<= main_x 76) (<= 76 main_x)), 52401#(and (<= 77 main_x) (<= main_x 77)), 52402#(and (<= 78 main_x) (<= main_x 78)), 52403#(and (<= 79 main_x) (<= main_x 79)), 52404#(and (<= main_x 80) (<= 80 main_x)), 52405#(and (<= 81 main_x) (<= main_x 81)), 52406#(and (<= 82 main_x) (<= main_x 82)), 52407#(and (<= 83 main_x) (<= main_x 83)), 52408#(and (<= main_x 84) (<= 84 main_x)), 52409#(and (<= 85 main_x) (<= main_x 85)), 52410#(and (<= 86 main_x) (<= main_x 86)), 52411#(and (<= 87 main_x) (<= main_x 87)), 52412#(and (<= 88 main_x) (<= main_x 88)), 52413#(and (<= 89 main_x) (<= main_x 89)), 52414#(and (<= 90 main_x) (<= main_x 90)), 52415#(and (<= main_x 91) (<= 91 main_x)), 52416#(and (<= main_x 92) (<= 92 main_x)), 52417#(and (<= 93 main_x) (<= main_x 93)), 52418#(and (<= 94 main_x) (<= main_x 94)), 52419#(and (<= 95 main_x) (<= main_x 95)), 52420#(and (<= 96 main_x) (<= main_x 96)), 52421#(and (<= main_x 97) (<= 97 main_x)), 52422#(and (<= main_x 98) (<= 98 main_x)), 52423#(and (<= 99 main_x) (<= main_x 99)), 52424#(and (<= main_x 100) (<= 100 main_x)), 52425#(and (<= 101 main_x) (<= main_x 101)), 52426#(and (<= main_x 102) (<= 102 main_x)), 52427#(and (<= main_x 103) (<= 103 main_x)), 52428#(and (<= main_x 104) (<= 104 main_x)), 52429#(and (<= main_x 105) (<= 105 main_x)), 52430#(and (<= 106 main_x) (<= main_x 106)), 52431#(and (<= main_x 107) (<= 107 main_x)), 52432#(and (<= 108 main_x) (<= main_x 108)), 52433#(and (<= 109 main_x) (<= main_x 109)), 52434#(and (<= main_x 110) (<= 110 main_x)), 52435#(and (<= main_x 111) (<= 111 main_x)), 52436#(and (<= main_x 112) (<= 112 main_x)), 52437#(and (<= main_x 113) (<= 113 main_x)), 52438#(and (<= 114 main_x) (<= main_x 114)), 52439#(and (<= 115 main_x) (<= main_x 115)), 52440#(and (<= 116 main_x) (<= main_x 116)), 52441#(and (<= 117 main_x) (<= main_x 117)), 52442#(and (<= 118 main_x) (<= main_x 118)), 52443#(and (<= main_x 119) (<= 119 main_x)), 52444#(and (<= main_x 120) (<= 120 main_x)), 52445#(and (<= 121 main_x) (<= main_x 121)), 52446#(and (<= 122 main_x) (<= main_x 122)), 52447#(and (<= main_x 123) (<= 123 main_x)), 52448#(and (<= main_x 124) (<= 124 main_x)), 52449#(and (<= main_x 125) (<= 125 main_x)), 52450#(and (<= 126 main_x) (<= main_x 126)), 52451#(and (<= main_x 127) (<= 127 main_x)), 52452#(and (<= main_x 128) (<= 128 main_x)), 52453#(and (<= 129 main_x) (<= main_x 129)), 52454#(and (<= main_x 130) (<= 130 main_x)), 52455#(and (<= main_x 131) (<= 131 main_x)), 52456#(and (<= 132 main_x) (<= main_x 132)), 52457#(and (<= main_x 133) (<= 133 main_x)), 52458#(and (<= main_x 134) (<= 134 main_x)), 52459#(and (<= main_x 135) (<= 135 main_x)), 52460#(and (<= main_x 136) (<= 136 main_x)), 52461#(and (<= 137 main_x) (<= main_x 137)), 52462#(and (<= main_x 138) (<= 138 main_x)), 52463#(and (<= main_x 139) (<= 139 main_x)), 52464#(and (<= main_x 140) (<= 140 main_x)), 52465#(or (<= (+ main_x 115) 0) (<= 141 main_x))] [2018-07-23 13:53:14,178 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 13:53:14,178 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:53:14,178 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:53:14,179 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=20307, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:53:14,179 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 144 states. [2018-07-23 13:53:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:15,594 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2018-07-23 13:53:15,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:53:15,594 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 143 [2018-07-23 13:53:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:15,594 INFO L225 Difference]: With dead ends: 146 [2018-07-23 13:53:15,594 INFO L226 Difference]: Without dead ends: 145 [2018-07-23 13:53:15,595 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=285, Invalid=20307, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:53:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-07-23 13:53:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-07-23 13:53:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-23 13:53:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2018-07-23 13:53:15,602 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 143 [2018-07-23 13:53:15,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:15,603 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2018-07-23 13:53:15,603 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:53:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2018-07-23 13:53:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-23 13:53:15,603 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:15,604 INFO L357 BasicCegarLoop]: trace histogram [142, 1, 1] [2018-07-23 13:53:15,604 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:15,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1089442867, now seen corresponding path program 142 times [2018-07-23 13:53:15,604 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:16,836 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 13:53:16,836 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:16,836 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:53:16,836 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:16,836 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 13:53:16,837 INFO L185 omatonBuilderFactory]: Interpolants [53048#true, 53049#false, 53050#(and (<= main_x 0) (<= 0 main_x)), 53051#(and (<= 1 main_x) (<= main_x 1)), 53052#(and (<= 2 main_x) (<= main_x 2)), 53053#(and (<= 3 main_x) (<= main_x 3)), 53054#(and (<= main_x 4) (<= 4 main_x)), 53055#(and (<= 5 main_x) (<= main_x 5)), 53056#(and (<= 6 main_x) (<= main_x 6)), 53057#(and (<= main_x 7) (<= 7 main_x)), 53058#(and (<= main_x 8) (<= 8 main_x)), 53059#(and (<= 9 main_x) (<= main_x 9)), 53060#(and (<= main_x 10) (<= 10 main_x)), 53061#(and (<= 11 main_x) (<= main_x 11)), 53062#(and (<= 12 main_x) (<= main_x 12)), 53063#(and (<= 13 main_x) (<= main_x 13)), 53064#(and (<= 14 main_x) (<= main_x 14)), 53065#(and (<= 15 main_x) (<= main_x 15)), 53066#(and (<= main_x 16) (<= 16 main_x)), 53067#(and (<= 17 main_x) (<= main_x 17)), 53068#(and (<= main_x 18) (<= 18 main_x)), 53069#(and (<= main_x 19) (<= 19 main_x)), 53070#(and (<= 20 main_x) (<= main_x 20)), 53071#(and (<= 21 main_x) (<= main_x 21)), 53072#(and (<= main_x 22) (<= 22 main_x)), 53073#(and (<= 23 main_x) (<= main_x 23)), 53074#(and (<= main_x 24) (<= 24 main_x)), 53075#(and (<= main_x 25) (<= 25 main_x)), 53076#(and (<= main_x 26) (<= 26 main_x)), 53077#(and (<= main_x 27) (<= 27 main_x)), 53078#(and (<= main_x 28) (<= 28 main_x)), 53079#(and (<= main_x 29) (<= 29 main_x)), 53080#(and (<= 30 main_x) (<= main_x 30)), 53081#(and (<= 31 main_x) (<= main_x 31)), 53082#(and (<= 32 main_x) (<= main_x 32)), 53083#(and (<= main_x 33) (<= 33 main_x)), 53084#(and (<= 34 main_x) (<= main_x 34)), 53085#(and (<= main_x 35) (<= 35 main_x)), 53086#(and (<= main_x 36) (<= 36 main_x)), 53087#(and (<= 37 main_x) (<= main_x 37)), 53088#(and (<= 38 main_x) (<= main_x 38)), 53089#(and (<= 39 main_x) (<= main_x 39)), 53090#(and (<= main_x 40) (<= 40 main_x)), 53091#(and (<= 41 main_x) (<= main_x 41)), 53092#(and (<= 42 main_x) (<= main_x 42)), 53093#(and (<= 43 main_x) (<= main_x 43)), 53094#(and (<= main_x 44) (<= 44 main_x)), 53095#(and (<= 45 main_x) (<= main_x 45)), 53096#(and (<= 46 main_x) (<= main_x 46)), 53097#(and (<= 47 main_x) (<= main_x 47)), 53098#(and (<= 48 main_x) (<= main_x 48)), 53099#(and (<= main_x 49) (<= 49 main_x)), 53100#(and (<= main_x 50) (<= 50 main_x)), 53101#(and (<= main_x 51) (<= 51 main_x)), 53102#(and (<= 52 main_x) (<= main_x 52)), 53103#(and (<= main_x 53) (<= 53 main_x)), 53104#(and (<= 54 main_x) (<= main_x 54)), 53105#(and (<= 55 main_x) (<= main_x 55)), 53106#(and (<= main_x 56) (<= 56 main_x)), 53107#(and (<= main_x 57) (<= 57 main_x)), 53108#(and (<= 58 main_x) (<= main_x 58)), 53109#(and (<= 59 main_x) (<= main_x 59)), 53110#(and (<= main_x 60) (<= 60 main_x)), 53111#(and (<= main_x 61) (<= 61 main_x)), 53112#(and (<= main_x 62) (<= 62 main_x)), 53113#(and (<= 63 main_x) (<= main_x 63)), 53114#(and (<= 64 main_x) (<= main_x 64)), 53115#(and (<= main_x 65) (<= 65 main_x)), 53116#(and (<= main_x 66) (<= 66 main_x)), 53117#(and (<= 67 main_x) (<= main_x 67)), 53118#(and (<= main_x 68) (<= 68 main_x)), 53119#(and (<= 69 main_x) (<= main_x 69)), 53120#(and (<= main_x 70) (<= 70 main_x)), 53121#(and (<= 71 main_x) (<= main_x 71)), 53122#(and (<= main_x 72) (<= 72 main_x)), 53123#(and (<= main_x 73) (<= 73 main_x)), 53124#(and (<= 74 main_x) (<= main_x 74)), 53125#(and (<= main_x 75) (<= 75 main_x)), 53126#(and (<= main_x 76) (<= 76 main_x)), 53127#(and (<= 77 main_x) (<= main_x 77)), 53128#(and (<= 78 main_x) (<= main_x 78)), 53129#(and (<= 79 main_x) (<= main_x 79)), 53130#(and (<= main_x 80) (<= 80 main_x)), 53131#(and (<= 81 main_x) (<= main_x 81)), 53132#(and (<= 82 main_x) (<= main_x 82)), 53133#(and (<= 83 main_x) (<= main_x 83)), 53134#(and (<= main_x 84) (<= 84 main_x)), 53135#(and (<= 85 main_x) (<= main_x 85)), 53136#(and (<= 86 main_x) (<= main_x 86)), 53137#(and (<= 87 main_x) (<= main_x 87)), 53138#(and (<= 88 main_x) (<= main_x 88)), 53139#(and (<= 89 main_x) (<= main_x 89)), 53140#(and (<= 90 main_x) (<= main_x 90)), 53141#(and (<= main_x 91) (<= 91 main_x)), 53142#(and (<= main_x 92) (<= 92 main_x)), 53143#(and (<= 93 main_x) (<= main_x 93)), 53144#(and (<= 94 main_x) (<= main_x 94)), 53145#(and (<= 95 main_x) (<= main_x 95)), 53146#(and (<= 96 main_x) (<= main_x 96)), 53147#(and (<= main_x 97) (<= 97 main_x)), 53148#(and (<= main_x 98) (<= 98 main_x)), 53149#(and (<= 99 main_x) (<= main_x 99)), 53150#(and (<= main_x 100) (<= 100 main_x)), 53151#(and (<= 101 main_x) (<= main_x 101)), 53152#(and (<= main_x 102) (<= 102 main_x)), 53153#(and (<= main_x 103) (<= 103 main_x)), 53154#(and (<= main_x 104) (<= 104 main_x)), 53155#(and (<= main_x 105) (<= 105 main_x)), 53156#(and (<= 106 main_x) (<= main_x 106)), 53157#(and (<= main_x 107) (<= 107 main_x)), 53158#(and (<= 108 main_x) (<= main_x 108)), 53159#(and (<= 109 main_x) (<= main_x 109)), 53160#(and (<= main_x 110) (<= 110 main_x)), 53161#(and (<= main_x 111) (<= 111 main_x)), 53162#(and (<= main_x 112) (<= 112 main_x)), 53163#(and (<= main_x 113) (<= 113 main_x)), 53164#(and (<= 114 main_x) (<= main_x 114)), 53165#(and (<= 115 main_x) (<= main_x 115)), 53166#(and (<= 116 main_x) (<= main_x 116)), 53167#(and (<= 117 main_x) (<= main_x 117)), 53168#(and (<= 118 main_x) (<= main_x 118)), 53169#(and (<= main_x 119) (<= 119 main_x)), 53170#(and (<= main_x 120) (<= 120 main_x)), 53171#(and (<= 121 main_x) (<= main_x 121)), 53172#(and (<= 122 main_x) (<= main_x 122)), 53173#(and (<= main_x 123) (<= 123 main_x)), 53174#(and (<= main_x 124) (<= 124 main_x)), 53175#(and (<= main_x 125) (<= 125 main_x)), 53176#(and (<= 126 main_x) (<= main_x 126)), 53177#(and (<= main_x 127) (<= 127 main_x)), 53178#(and (<= main_x 128) (<= 128 main_x)), 53179#(and (<= 129 main_x) (<= main_x 129)), 53180#(and (<= main_x 130) (<= 130 main_x)), 53181#(and (<= main_x 131) (<= 131 main_x)), 53182#(and (<= 132 main_x) (<= main_x 132)), 53183#(and (<= main_x 133) (<= 133 main_x)), 53184#(and (<= main_x 134) (<= 134 main_x)), 53185#(and (<= main_x 135) (<= 135 main_x)), 53186#(and (<= main_x 136) (<= 136 main_x)), 53187#(and (<= 137 main_x) (<= main_x 137)), 53188#(and (<= main_x 138) (<= 138 main_x)), 53189#(and (<= main_x 139) (<= 139 main_x)), 53190#(and (<= main_x 140) (<= 140 main_x)), 53191#(and (<= main_x 141) (<= 141 main_x)), 53192#(or (<= (+ main_x 114) 0) (<= 142 main_x))] [2018-07-23 13:53:16,837 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 13:53:16,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:53:16,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:53:16,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=20593, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:53:16,838 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand 145 states. [2018-07-23 13:53:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:18,247 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:53:18,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:53:18,247 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 144 [2018-07-23 13:53:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:18,248 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:53:18,248 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:53:18,249 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=20593, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:53:18,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:53:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:53:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:53:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:53:18,257 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 144 [2018-07-23 13:53:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:18,257 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:53:18,257 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:53:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:53:18,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:53:18,258 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:18,258 INFO L357 BasicCegarLoop]: trace histogram [143, 1, 1] [2018-07-23 13:53:18,258 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:18,258 INFO L82 PathProgramCache]: Analyzing trace with hash -587009256, now seen corresponding path program 143 times [2018-07-23 13:53:18,258 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:19,238 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 13:53:19,239 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:19,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:53:19,239 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:19,239 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 13:53:19,239 INFO L185 omatonBuilderFactory]: Interpolants [53779#true, 53780#false, 53781#(and (<= main_x 0) (<= 0 main_x)), 53782#(and (<= 1 main_x) (<= main_x 1)), 53783#(and (<= 2 main_x) (<= main_x 2)), 53784#(and (<= 3 main_x) (<= main_x 3)), 53785#(and (<= main_x 4) (<= 4 main_x)), 53786#(and (<= 5 main_x) (<= main_x 5)), 53787#(and (<= 6 main_x) (<= main_x 6)), 53788#(and (<= main_x 7) (<= 7 main_x)), 53789#(and (<= main_x 8) (<= 8 main_x)), 53790#(and (<= 9 main_x) (<= main_x 9)), 53791#(and (<= main_x 10) (<= 10 main_x)), 53792#(and (<= 11 main_x) (<= main_x 11)), 53793#(and (<= 12 main_x) (<= main_x 12)), 53794#(and (<= 13 main_x) (<= main_x 13)), 53795#(and (<= 14 main_x) (<= main_x 14)), 53796#(and (<= 15 main_x) (<= main_x 15)), 53797#(and (<= main_x 16) (<= 16 main_x)), 53798#(and (<= 17 main_x) (<= main_x 17)), 53799#(and (<= main_x 18) (<= 18 main_x)), 53800#(and (<= main_x 19) (<= 19 main_x)), 53801#(and (<= 20 main_x) (<= main_x 20)), 53802#(and (<= 21 main_x) (<= main_x 21)), 53803#(and (<= main_x 22) (<= 22 main_x)), 53804#(and (<= 23 main_x) (<= main_x 23)), 53805#(and (<= main_x 24) (<= 24 main_x)), 53806#(and (<= main_x 25) (<= 25 main_x)), 53807#(and (<= main_x 26) (<= 26 main_x)), 53808#(and (<= main_x 27) (<= 27 main_x)), 53809#(and (<= main_x 28) (<= 28 main_x)), 53810#(and (<= main_x 29) (<= 29 main_x)), 53811#(and (<= 30 main_x) (<= main_x 30)), 53812#(and (<= 31 main_x) (<= main_x 31)), 53813#(and (<= 32 main_x) (<= main_x 32)), 53814#(and (<= main_x 33) (<= 33 main_x)), 53815#(and (<= 34 main_x) (<= main_x 34)), 53816#(and (<= main_x 35) (<= 35 main_x)), 53817#(and (<= main_x 36) (<= 36 main_x)), 53818#(and (<= 37 main_x) (<= main_x 37)), 53819#(and (<= 38 main_x) (<= main_x 38)), 53820#(and (<= 39 main_x) (<= main_x 39)), 53821#(and (<= main_x 40) (<= 40 main_x)), 53822#(and (<= 41 main_x) (<= main_x 41)), 53823#(and (<= 42 main_x) (<= main_x 42)), 53824#(and (<= 43 main_x) (<= main_x 43)), 53825#(and (<= main_x 44) (<= 44 main_x)), 53826#(and (<= 45 main_x) (<= main_x 45)), 53827#(and (<= 46 main_x) (<= main_x 46)), 53828#(and (<= 47 main_x) (<= main_x 47)), 53829#(and (<= 48 main_x) (<= main_x 48)), 53830#(and (<= main_x 49) (<= 49 main_x)), 53831#(and (<= main_x 50) (<= 50 main_x)), 53832#(and (<= main_x 51) (<= 51 main_x)), 53833#(and (<= 52 main_x) (<= main_x 52)), 53834#(and (<= main_x 53) (<= 53 main_x)), 53835#(and (<= 54 main_x) (<= main_x 54)), 53836#(and (<= 55 main_x) (<= main_x 55)), 53837#(and (<= main_x 56) (<= 56 main_x)), 53838#(and (<= main_x 57) (<= 57 main_x)), 53839#(and (<= 58 main_x) (<= main_x 58)), 53840#(and (<= 59 main_x) (<= main_x 59)), 53841#(and (<= main_x 60) (<= 60 main_x)), 53842#(and (<= main_x 61) (<= 61 main_x)), 53843#(and (<= main_x 62) (<= 62 main_x)), 53844#(and (<= 63 main_x) (<= main_x 63)), 53845#(and (<= 64 main_x) (<= main_x 64)), 53846#(and (<= main_x 65) (<= 65 main_x)), 53847#(and (<= main_x 66) (<= 66 main_x)), 53848#(and (<= 67 main_x) (<= main_x 67)), 53849#(and (<= main_x 68) (<= 68 main_x)), 53850#(and (<= 69 main_x) (<= main_x 69)), 53851#(and (<= main_x 70) (<= 70 main_x)), 53852#(and (<= 71 main_x) (<= main_x 71)), 53853#(and (<= main_x 72) (<= 72 main_x)), 53854#(and (<= main_x 73) (<= 73 main_x)), 53855#(and (<= 74 main_x) (<= main_x 74)), 53856#(and (<= main_x 75) (<= 75 main_x)), 53857#(and (<= main_x 76) (<= 76 main_x)), 53858#(and (<= 77 main_x) (<= main_x 77)), 53859#(and (<= 78 main_x) (<= main_x 78)), 53860#(and (<= 79 main_x) (<= main_x 79)), 53861#(and (<= main_x 80) (<= 80 main_x)), 53862#(and (<= 81 main_x) (<= main_x 81)), 53863#(and (<= 82 main_x) (<= main_x 82)), 53864#(and (<= 83 main_x) (<= main_x 83)), 53865#(and (<= main_x 84) (<= 84 main_x)), 53866#(and (<= 85 main_x) (<= main_x 85)), 53867#(and (<= 86 main_x) (<= main_x 86)), 53868#(and (<= 87 main_x) (<= main_x 87)), 53869#(and (<= 88 main_x) (<= main_x 88)), 53870#(and (<= 89 main_x) (<= main_x 89)), 53871#(and (<= 90 main_x) (<= main_x 90)), 53872#(and (<= main_x 91) (<= 91 main_x)), 53873#(and (<= main_x 92) (<= 92 main_x)), 53874#(and (<= 93 main_x) (<= main_x 93)), 53875#(and (<= 94 main_x) (<= main_x 94)), 53876#(and (<= 95 main_x) (<= main_x 95)), 53877#(and (<= 96 main_x) (<= main_x 96)), 53878#(and (<= main_x 97) (<= 97 main_x)), 53879#(and (<= main_x 98) (<= 98 main_x)), 53880#(and (<= 99 main_x) (<= main_x 99)), 53881#(and (<= main_x 100) (<= 100 main_x)), 53882#(and (<= 101 main_x) (<= main_x 101)), 53883#(and (<= main_x 102) (<= 102 main_x)), 53884#(and (<= main_x 103) (<= 103 main_x)), 53885#(and (<= main_x 104) (<= 104 main_x)), 53886#(and (<= main_x 105) (<= 105 main_x)), 53887#(and (<= 106 main_x) (<= main_x 106)), 53888#(and (<= main_x 107) (<= 107 main_x)), 53889#(and (<= 108 main_x) (<= main_x 108)), 53890#(and (<= 109 main_x) (<= main_x 109)), 53891#(and (<= main_x 110) (<= 110 main_x)), 53892#(and (<= main_x 111) (<= 111 main_x)), 53893#(and (<= main_x 112) (<= 112 main_x)), 53894#(and (<= main_x 113) (<= 113 main_x)), 53895#(and (<= 114 main_x) (<= main_x 114)), 53896#(and (<= 115 main_x) (<= main_x 115)), 53897#(and (<= 116 main_x) (<= main_x 116)), 53898#(and (<= 117 main_x) (<= main_x 117)), 53899#(and (<= 118 main_x) (<= main_x 118)), 53900#(and (<= main_x 119) (<= 119 main_x)), 53901#(and (<= main_x 120) (<= 120 main_x)), 53902#(and (<= 121 main_x) (<= main_x 121)), 53903#(and (<= 122 main_x) (<= main_x 122)), 53904#(and (<= main_x 123) (<= 123 main_x)), 53905#(and (<= main_x 124) (<= 124 main_x)), 53906#(and (<= main_x 125) (<= 125 main_x)), 53907#(and (<= 126 main_x) (<= main_x 126)), 53908#(and (<= main_x 127) (<= 127 main_x)), 53909#(and (<= main_x 128) (<= 128 main_x)), 53910#(and (<= 129 main_x) (<= main_x 129)), 53911#(and (<= main_x 130) (<= 130 main_x)), 53912#(and (<= main_x 131) (<= 131 main_x)), 53913#(and (<= 132 main_x) (<= main_x 132)), 53914#(and (<= main_x 133) (<= 133 main_x)), 53915#(and (<= main_x 134) (<= 134 main_x)), 53916#(and (<= main_x 135) (<= 135 main_x)), 53917#(and (<= main_x 136) (<= 136 main_x)), 53918#(and (<= 137 main_x) (<= main_x 137)), 53919#(and (<= main_x 138) (<= 138 main_x)), 53920#(and (<= main_x 139) (<= 139 main_x)), 53921#(and (<= main_x 140) (<= 140 main_x)), 53922#(and (<= main_x 141) (<= 141 main_x)), 53923#(and (<= 142 main_x) (<= main_x 142)), 53924#(or (<= (+ main_x 113) 0) (<= 143 main_x))] [2018-07-23 13:53:19,240 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 13:53:19,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:53:19,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:53:19,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=20881, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:53:19,241 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 146 states. [2018-07-23 13:53:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:20,721 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2018-07-23 13:53:20,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:53:20,721 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 145 [2018-07-23 13:53:20,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:20,721 INFO L225 Difference]: With dead ends: 148 [2018-07-23 13:53:20,721 INFO L226 Difference]: Without dead ends: 147 [2018-07-23 13:53:20,722 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=289, Invalid=20881, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:53:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-07-23 13:53:20,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-07-23 13:53:20,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-07-23 13:53:20,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2018-07-23 13:53:20,728 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 145 [2018-07-23 13:53:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:20,728 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2018-07-23 13:53:20,728 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:53:20,728 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2018-07-23 13:53:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 13:53:20,729 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:20,729 INFO L357 BasicCegarLoop]: trace histogram [144, 1, 1] [2018-07-23 13:53:20,729 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:20,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1017417517, now seen corresponding path program 144 times [2018-07-23 13:53:20,729 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:21,800 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 13:53:21,800 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:21,800 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:53:21,800 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:21,800 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 13:53:21,801 INFO L185 omatonBuilderFactory]: Interpolants [54528#(and (<= 11 main_x) (<= main_x 11)), 54529#(and (<= 12 main_x) (<= main_x 12)), 54530#(and (<= 13 main_x) (<= main_x 13)), 54531#(and (<= 14 main_x) (<= main_x 14)), 54532#(and (<= 15 main_x) (<= main_x 15)), 54533#(and (<= main_x 16) (<= 16 main_x)), 54534#(and (<= 17 main_x) (<= main_x 17)), 54535#(and (<= main_x 18) (<= 18 main_x)), 54536#(and (<= main_x 19) (<= 19 main_x)), 54537#(and (<= 20 main_x) (<= main_x 20)), 54538#(and (<= 21 main_x) (<= main_x 21)), 54539#(and (<= main_x 22) (<= 22 main_x)), 54540#(and (<= 23 main_x) (<= main_x 23)), 54541#(and (<= main_x 24) (<= 24 main_x)), 54542#(and (<= main_x 25) (<= 25 main_x)), 54543#(and (<= main_x 26) (<= 26 main_x)), 54544#(and (<= main_x 27) (<= 27 main_x)), 54545#(and (<= main_x 28) (<= 28 main_x)), 54546#(and (<= main_x 29) (<= 29 main_x)), 54547#(and (<= 30 main_x) (<= main_x 30)), 54548#(and (<= 31 main_x) (<= main_x 31)), 54549#(and (<= 32 main_x) (<= main_x 32)), 54550#(and (<= main_x 33) (<= 33 main_x)), 54551#(and (<= 34 main_x) (<= main_x 34)), 54552#(and (<= main_x 35) (<= 35 main_x)), 54553#(and (<= main_x 36) (<= 36 main_x)), 54554#(and (<= 37 main_x) (<= main_x 37)), 54555#(and (<= 38 main_x) (<= main_x 38)), 54556#(and (<= 39 main_x) (<= main_x 39)), 54557#(and (<= main_x 40) (<= 40 main_x)), 54558#(and (<= 41 main_x) (<= main_x 41)), 54559#(and (<= 42 main_x) (<= main_x 42)), 54560#(and (<= 43 main_x) (<= main_x 43)), 54561#(and (<= main_x 44) (<= 44 main_x)), 54562#(and (<= 45 main_x) (<= main_x 45)), 54563#(and (<= 46 main_x) (<= main_x 46)), 54564#(and (<= 47 main_x) (<= main_x 47)), 54565#(and (<= 48 main_x) (<= main_x 48)), 54566#(and (<= main_x 49) (<= 49 main_x)), 54567#(and (<= main_x 50) (<= 50 main_x)), 54568#(and (<= main_x 51) (<= 51 main_x)), 54569#(and (<= 52 main_x) (<= main_x 52)), 54570#(and (<= main_x 53) (<= 53 main_x)), 54571#(and (<= 54 main_x) (<= main_x 54)), 54572#(and (<= 55 main_x) (<= main_x 55)), 54573#(and (<= main_x 56) (<= 56 main_x)), 54574#(and (<= main_x 57) (<= 57 main_x)), 54575#(and (<= 58 main_x) (<= main_x 58)), 54576#(and (<= 59 main_x) (<= main_x 59)), 54577#(and (<= main_x 60) (<= 60 main_x)), 54578#(and (<= main_x 61) (<= 61 main_x)), 54579#(and (<= main_x 62) (<= 62 main_x)), 54580#(and (<= 63 main_x) (<= main_x 63)), 54581#(and (<= 64 main_x) (<= main_x 64)), 54582#(and (<= main_x 65) (<= 65 main_x)), 54583#(and (<= main_x 66) (<= 66 main_x)), 54584#(and (<= 67 main_x) (<= main_x 67)), 54585#(and (<= main_x 68) (<= 68 main_x)), 54586#(and (<= 69 main_x) (<= main_x 69)), 54587#(and (<= main_x 70) (<= 70 main_x)), 54588#(and (<= 71 main_x) (<= main_x 71)), 54589#(and (<= main_x 72) (<= 72 main_x)), 54590#(and (<= main_x 73) (<= 73 main_x)), 54591#(and (<= 74 main_x) (<= main_x 74)), 54592#(and (<= main_x 75) (<= 75 main_x)), 54593#(and (<= main_x 76) (<= 76 main_x)), 54594#(and (<= 77 main_x) (<= main_x 77)), 54595#(and (<= 78 main_x) (<= main_x 78)), 54596#(and (<= 79 main_x) (<= main_x 79)), 54597#(and (<= main_x 80) (<= 80 main_x)), 54598#(and (<= 81 main_x) (<= main_x 81)), 54599#(and (<= 82 main_x) (<= main_x 82)), 54600#(and (<= 83 main_x) (<= main_x 83)), 54601#(and (<= main_x 84) (<= 84 main_x)), 54602#(and (<= 85 main_x) (<= main_x 85)), 54603#(and (<= 86 main_x) (<= main_x 86)), 54604#(and (<= 87 main_x) (<= main_x 87)), 54605#(and (<= 88 main_x) (<= main_x 88)), 54606#(and (<= 89 main_x) (<= main_x 89)), 54607#(and (<= 90 main_x) (<= main_x 90)), 54608#(and (<= main_x 91) (<= 91 main_x)), 54609#(and (<= main_x 92) (<= 92 main_x)), 54610#(and (<= 93 main_x) (<= main_x 93)), 54611#(and (<= 94 main_x) (<= main_x 94)), 54612#(and (<= 95 main_x) (<= main_x 95)), 54613#(and (<= 96 main_x) (<= main_x 96)), 54614#(and (<= main_x 97) (<= 97 main_x)), 54615#(and (<= main_x 98) (<= 98 main_x)), 54616#(and (<= 99 main_x) (<= main_x 99)), 54617#(and (<= main_x 100) (<= 100 main_x)), 54618#(and (<= 101 main_x) (<= main_x 101)), 54619#(and (<= main_x 102) (<= 102 main_x)), 54620#(and (<= main_x 103) (<= 103 main_x)), 54621#(and (<= main_x 104) (<= 104 main_x)), 54622#(and (<= main_x 105) (<= 105 main_x)), 54623#(and (<= 106 main_x) (<= main_x 106)), 54624#(and (<= main_x 107) (<= 107 main_x)), 54625#(and (<= 108 main_x) (<= main_x 108)), 54626#(and (<= 109 main_x) (<= main_x 109)), 54627#(and (<= main_x 110) (<= 110 main_x)), 54628#(and (<= main_x 111) (<= 111 main_x)), 54629#(and (<= main_x 112) (<= 112 main_x)), 54630#(and (<= main_x 113) (<= 113 main_x)), 54631#(and (<= 114 main_x) (<= main_x 114)), 54632#(and (<= 115 main_x) (<= main_x 115)), 54633#(and (<= 116 main_x) (<= main_x 116)), 54634#(and (<= 117 main_x) (<= main_x 117)), 54635#(and (<= 118 main_x) (<= main_x 118)), 54636#(and (<= main_x 119) (<= 119 main_x)), 54637#(and (<= main_x 120) (<= 120 main_x)), 54638#(and (<= 121 main_x) (<= main_x 121)), 54639#(and (<= 122 main_x) (<= main_x 122)), 54640#(and (<= main_x 123) (<= 123 main_x)), 54641#(and (<= main_x 124) (<= 124 main_x)), 54642#(and (<= main_x 125) (<= 125 main_x)), 54643#(and (<= 126 main_x) (<= main_x 126)), 54644#(and (<= main_x 127) (<= 127 main_x)), 54645#(and (<= main_x 128) (<= 128 main_x)), 54646#(and (<= 129 main_x) (<= main_x 129)), 54647#(and (<= main_x 130) (<= 130 main_x)), 54648#(and (<= main_x 131) (<= 131 main_x)), 54649#(and (<= 132 main_x) (<= main_x 132)), 54650#(and (<= main_x 133) (<= 133 main_x)), 54651#(and (<= main_x 134) (<= 134 main_x)), 54652#(and (<= main_x 135) (<= 135 main_x)), 54653#(and (<= main_x 136) (<= 136 main_x)), 54654#(and (<= 137 main_x) (<= main_x 137)), 54655#(and (<= main_x 138) (<= 138 main_x)), 54656#(and (<= main_x 139) (<= 139 main_x)), 54657#(and (<= main_x 140) (<= 140 main_x)), 54658#(and (<= main_x 141) (<= 141 main_x)), 54659#(and (<= 142 main_x) (<= main_x 142)), 54660#(and (<= 143 main_x) (<= main_x 143)), 54661#(or (<= (+ main_x 112) 0) (<= 144 main_x)), 54515#true, 54516#false, 54517#(and (<= main_x 0) (<= 0 main_x)), 54518#(and (<= 1 main_x) (<= main_x 1)), 54519#(and (<= 2 main_x) (<= main_x 2)), 54520#(and (<= 3 main_x) (<= main_x 3)), 54521#(and (<= main_x 4) (<= 4 main_x)), 54522#(and (<= 5 main_x) (<= main_x 5)), 54523#(and (<= 6 main_x) (<= main_x 6)), 54524#(and (<= main_x 7) (<= 7 main_x)), 54525#(and (<= main_x 8) (<= 8 main_x)), 54526#(and (<= 9 main_x) (<= main_x 9)), 54527#(and (<= main_x 10) (<= 10 main_x))] [2018-07-23 13:53:21,801 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 13:53:21,802 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:53:21,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:53:21,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=21171, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:53:21,803 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand 147 states. [2018-07-23 13:53:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:23,277 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:53:23,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:53:23,278 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 146 [2018-07-23 13:53:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:23,278 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:53:23,278 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:53:23,279 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=291, Invalid=21171, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:53:23,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:53:23,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:53:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:53:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:53:23,285 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 146 [2018-07-23 13:53:23,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:23,285 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:53:23,285 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:53:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:53:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:53:23,286 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:23,286 INFO L357 BasicCegarLoop]: trace histogram [145, 1, 1] [2018-07-23 13:53:23,286 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:23,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1475171720, now seen corresponding path program 145 times [2018-07-23 13:53:23,286 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:24,389 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 13:53:24,389 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:24,389 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:53:24,389 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:24,390 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 13:53:24,390 INFO L185 omatonBuilderFactory]: Interpolants [55296#(and (<= 38 main_x) (<= main_x 38)), 55297#(and (<= 39 main_x) (<= main_x 39)), 55298#(and (<= main_x 40) (<= 40 main_x)), 55299#(and (<= 41 main_x) (<= main_x 41)), 55300#(and (<= 42 main_x) (<= main_x 42)), 55301#(and (<= 43 main_x) (<= main_x 43)), 55302#(and (<= main_x 44) (<= 44 main_x)), 55303#(and (<= 45 main_x) (<= main_x 45)), 55304#(and (<= 46 main_x) (<= main_x 46)), 55305#(and (<= 47 main_x) (<= main_x 47)), 55306#(and (<= 48 main_x) (<= main_x 48)), 55307#(and (<= main_x 49) (<= 49 main_x)), 55308#(and (<= main_x 50) (<= 50 main_x)), 55309#(and (<= main_x 51) (<= 51 main_x)), 55310#(and (<= 52 main_x) (<= main_x 52)), 55311#(and (<= main_x 53) (<= 53 main_x)), 55312#(and (<= 54 main_x) (<= main_x 54)), 55313#(and (<= 55 main_x) (<= main_x 55)), 55314#(and (<= main_x 56) (<= 56 main_x)), 55315#(and (<= main_x 57) (<= 57 main_x)), 55316#(and (<= 58 main_x) (<= main_x 58)), 55317#(and (<= 59 main_x) (<= main_x 59)), 55318#(and (<= main_x 60) (<= 60 main_x)), 55319#(and (<= main_x 61) (<= 61 main_x)), 55320#(and (<= main_x 62) (<= 62 main_x)), 55321#(and (<= 63 main_x) (<= main_x 63)), 55322#(and (<= 64 main_x) (<= main_x 64)), 55323#(and (<= main_x 65) (<= 65 main_x)), 55324#(and (<= main_x 66) (<= 66 main_x)), 55325#(and (<= 67 main_x) (<= main_x 67)), 55326#(and (<= main_x 68) (<= 68 main_x)), 55327#(and (<= 69 main_x) (<= main_x 69)), 55328#(and (<= main_x 70) (<= 70 main_x)), 55329#(and (<= 71 main_x) (<= main_x 71)), 55330#(and (<= main_x 72) (<= 72 main_x)), 55331#(and (<= main_x 73) (<= 73 main_x)), 55332#(and (<= 74 main_x) (<= main_x 74)), 55333#(and (<= main_x 75) (<= 75 main_x)), 55334#(and (<= main_x 76) (<= 76 main_x)), 55335#(and (<= 77 main_x) (<= main_x 77)), 55336#(and (<= 78 main_x) (<= main_x 78)), 55337#(and (<= 79 main_x) (<= main_x 79)), 55338#(and (<= main_x 80) (<= 80 main_x)), 55339#(and (<= 81 main_x) (<= main_x 81)), 55340#(and (<= 82 main_x) (<= main_x 82)), 55341#(and (<= 83 main_x) (<= main_x 83)), 55342#(and (<= main_x 84) (<= 84 main_x)), 55343#(and (<= 85 main_x) (<= main_x 85)), 55344#(and (<= 86 main_x) (<= main_x 86)), 55345#(and (<= 87 main_x) (<= main_x 87)), 55346#(and (<= 88 main_x) (<= main_x 88)), 55347#(and (<= 89 main_x) (<= main_x 89)), 55348#(and (<= 90 main_x) (<= main_x 90)), 55349#(and (<= main_x 91) (<= 91 main_x)), 55350#(and (<= main_x 92) (<= 92 main_x)), 55351#(and (<= 93 main_x) (<= main_x 93)), 55352#(and (<= 94 main_x) (<= main_x 94)), 55353#(and (<= 95 main_x) (<= main_x 95)), 55354#(and (<= 96 main_x) (<= main_x 96)), 55355#(and (<= main_x 97) (<= 97 main_x)), 55356#(and (<= main_x 98) (<= 98 main_x)), 55357#(and (<= 99 main_x) (<= main_x 99)), 55358#(and (<= main_x 100) (<= 100 main_x)), 55359#(and (<= 101 main_x) (<= main_x 101)), 55360#(and (<= main_x 102) (<= 102 main_x)), 55361#(and (<= main_x 103) (<= 103 main_x)), 55362#(and (<= main_x 104) (<= 104 main_x)), 55363#(and (<= main_x 105) (<= 105 main_x)), 55364#(and (<= 106 main_x) (<= main_x 106)), 55365#(and (<= main_x 107) (<= 107 main_x)), 55366#(and (<= 108 main_x) (<= main_x 108)), 55367#(and (<= 109 main_x) (<= main_x 109)), 55368#(and (<= main_x 110) (<= 110 main_x)), 55369#(and (<= main_x 111) (<= 111 main_x)), 55370#(and (<= main_x 112) (<= 112 main_x)), 55371#(and (<= main_x 113) (<= 113 main_x)), 55372#(and (<= 114 main_x) (<= main_x 114)), 55373#(and (<= 115 main_x) (<= main_x 115)), 55374#(and (<= 116 main_x) (<= main_x 116)), 55375#(and (<= 117 main_x) (<= main_x 117)), 55376#(and (<= 118 main_x) (<= main_x 118)), 55377#(and (<= main_x 119) (<= 119 main_x)), 55378#(and (<= main_x 120) (<= 120 main_x)), 55379#(and (<= 121 main_x) (<= main_x 121)), 55380#(and (<= 122 main_x) (<= main_x 122)), 55381#(and (<= main_x 123) (<= 123 main_x)), 55382#(and (<= main_x 124) (<= 124 main_x)), 55383#(and (<= main_x 125) (<= 125 main_x)), 55384#(and (<= 126 main_x) (<= main_x 126)), 55385#(and (<= main_x 127) (<= 127 main_x)), 55386#(and (<= main_x 128) (<= 128 main_x)), 55387#(and (<= 129 main_x) (<= main_x 129)), 55388#(and (<= main_x 130) (<= 130 main_x)), 55389#(and (<= main_x 131) (<= 131 main_x)), 55390#(and (<= 132 main_x) (<= main_x 132)), 55391#(and (<= main_x 133) (<= 133 main_x)), 55392#(and (<= main_x 134) (<= 134 main_x)), 55393#(and (<= main_x 135) (<= 135 main_x)), 55394#(and (<= main_x 136) (<= 136 main_x)), 55395#(and (<= 137 main_x) (<= main_x 137)), 55396#(and (<= main_x 138) (<= 138 main_x)), 55397#(and (<= main_x 139) (<= 139 main_x)), 55398#(and (<= main_x 140) (<= 140 main_x)), 55399#(and (<= main_x 141) (<= 141 main_x)), 55400#(and (<= 142 main_x) (<= main_x 142)), 55401#(and (<= 143 main_x) (<= main_x 143)), 55402#(and (<= main_x 144) (<= 144 main_x)), 55403#(or (<= (+ main_x 111) 0) (<= 145 main_x)), 55256#true, 55257#false, 55258#(and (<= main_x 0) (<= 0 main_x)), 55259#(and (<= 1 main_x) (<= main_x 1)), 55260#(and (<= 2 main_x) (<= main_x 2)), 55261#(and (<= 3 main_x) (<= main_x 3)), 55262#(and (<= main_x 4) (<= 4 main_x)), 55263#(and (<= 5 main_x) (<= main_x 5)), 55264#(and (<= 6 main_x) (<= main_x 6)), 55265#(and (<= main_x 7) (<= 7 main_x)), 55266#(and (<= main_x 8) (<= 8 main_x)), 55267#(and (<= 9 main_x) (<= main_x 9)), 55268#(and (<= main_x 10) (<= 10 main_x)), 55269#(and (<= 11 main_x) (<= main_x 11)), 55270#(and (<= 12 main_x) (<= main_x 12)), 55271#(and (<= 13 main_x) (<= main_x 13)), 55272#(and (<= 14 main_x) (<= main_x 14)), 55273#(and (<= 15 main_x) (<= main_x 15)), 55274#(and (<= main_x 16) (<= 16 main_x)), 55275#(and (<= 17 main_x) (<= main_x 17)), 55276#(and (<= main_x 18) (<= 18 main_x)), 55277#(and (<= main_x 19) (<= 19 main_x)), 55278#(and (<= 20 main_x) (<= main_x 20)), 55279#(and (<= 21 main_x) (<= main_x 21)), 55280#(and (<= main_x 22) (<= 22 main_x)), 55281#(and (<= 23 main_x) (<= main_x 23)), 55282#(and (<= main_x 24) (<= 24 main_x)), 55283#(and (<= main_x 25) (<= 25 main_x)), 55284#(and (<= main_x 26) (<= 26 main_x)), 55285#(and (<= main_x 27) (<= 27 main_x)), 55286#(and (<= main_x 28) (<= 28 main_x)), 55287#(and (<= main_x 29) (<= 29 main_x)), 55288#(and (<= 30 main_x) (<= main_x 30)), 55289#(and (<= 31 main_x) (<= main_x 31)), 55290#(and (<= 32 main_x) (<= main_x 32)), 55291#(and (<= main_x 33) (<= 33 main_x)), 55292#(and (<= 34 main_x) (<= main_x 34)), 55293#(and (<= main_x 35) (<= 35 main_x)), 55294#(and (<= main_x 36) (<= 36 main_x)), 55295#(and (<= 37 main_x) (<= main_x 37))] [2018-07-23 13:53:24,391 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 13:53:24,391 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:53:24,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:53:24,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=21463, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:53:24,392 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 148 states. [2018-07-23 13:53:25,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:25,895 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2018-07-23 13:53:25,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:53:25,896 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 147 [2018-07-23 13:53:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:25,896 INFO L225 Difference]: With dead ends: 150 [2018-07-23 13:53:25,896 INFO L226 Difference]: Without dead ends: 149 [2018-07-23 13:53:25,897 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=293, Invalid=21463, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:53:25,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-07-23 13:53:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-07-23 13:53:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-07-23 13:53:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2018-07-23 13:53:25,904 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 147 [2018-07-23 13:53:25,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:25,904 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2018-07-23 13:53:25,904 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:53:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2018-07-23 13:53:25,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-07-23 13:53:25,905 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:25,905 INFO L357 BasicCegarLoop]: trace histogram [146, 1, 1] [2018-07-23 13:53:25,905 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:25,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1514317171, now seen corresponding path program 146 times [2018-07-23 13:53:25,905 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:27,008 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 13:53:27,008 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:27,009 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:53:27,009 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:27,009 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 13:53:27,009 INFO L185 omatonBuilderFactory]: Interpolants [56064#(and (<= main_x 60) (<= 60 main_x)), 56065#(and (<= main_x 61) (<= 61 main_x)), 56066#(and (<= main_x 62) (<= 62 main_x)), 56067#(and (<= 63 main_x) (<= main_x 63)), 56068#(and (<= 64 main_x) (<= main_x 64)), 56069#(and (<= main_x 65) (<= 65 main_x)), 56070#(and (<= main_x 66) (<= 66 main_x)), 56071#(and (<= 67 main_x) (<= main_x 67)), 56072#(and (<= main_x 68) (<= 68 main_x)), 56073#(and (<= 69 main_x) (<= main_x 69)), 56074#(and (<= main_x 70) (<= 70 main_x)), 56075#(and (<= 71 main_x) (<= main_x 71)), 56076#(and (<= main_x 72) (<= 72 main_x)), 56077#(and (<= main_x 73) (<= 73 main_x)), 56078#(and (<= 74 main_x) (<= main_x 74)), 56079#(and (<= main_x 75) (<= 75 main_x)), 56080#(and (<= main_x 76) (<= 76 main_x)), 56081#(and (<= 77 main_x) (<= main_x 77)), 56082#(and (<= 78 main_x) (<= main_x 78)), 56083#(and (<= 79 main_x) (<= main_x 79)), 56084#(and (<= main_x 80) (<= 80 main_x)), 56085#(and (<= 81 main_x) (<= main_x 81)), 56086#(and (<= 82 main_x) (<= main_x 82)), 56087#(and (<= 83 main_x) (<= main_x 83)), 56088#(and (<= main_x 84) (<= 84 main_x)), 56089#(and (<= 85 main_x) (<= main_x 85)), 56090#(and (<= 86 main_x) (<= main_x 86)), 56091#(and (<= 87 main_x) (<= main_x 87)), 56092#(and (<= 88 main_x) (<= main_x 88)), 56093#(and (<= 89 main_x) (<= main_x 89)), 56094#(and (<= 90 main_x) (<= main_x 90)), 56095#(and (<= main_x 91) (<= 91 main_x)), 56096#(and (<= main_x 92) (<= 92 main_x)), 56097#(and (<= 93 main_x) (<= main_x 93)), 56098#(and (<= 94 main_x) (<= main_x 94)), 56099#(and (<= 95 main_x) (<= main_x 95)), 56100#(and (<= 96 main_x) (<= main_x 96)), 56101#(and (<= main_x 97) (<= 97 main_x)), 56102#(and (<= main_x 98) (<= 98 main_x)), 56103#(and (<= 99 main_x) (<= main_x 99)), 56104#(and (<= main_x 100) (<= 100 main_x)), 56105#(and (<= 101 main_x) (<= main_x 101)), 56106#(and (<= main_x 102) (<= 102 main_x)), 56107#(and (<= main_x 103) (<= 103 main_x)), 56108#(and (<= main_x 104) (<= 104 main_x)), 56109#(and (<= main_x 105) (<= 105 main_x)), 56110#(and (<= 106 main_x) (<= main_x 106)), 56111#(and (<= main_x 107) (<= 107 main_x)), 56112#(and (<= 108 main_x) (<= main_x 108)), 56113#(and (<= 109 main_x) (<= main_x 109)), 56114#(and (<= main_x 110) (<= 110 main_x)), 56115#(and (<= main_x 111) (<= 111 main_x)), 56116#(and (<= main_x 112) (<= 112 main_x)), 56117#(and (<= main_x 113) (<= 113 main_x)), 56118#(and (<= 114 main_x) (<= main_x 114)), 56119#(and (<= 115 main_x) (<= main_x 115)), 56120#(and (<= 116 main_x) (<= main_x 116)), 56121#(and (<= 117 main_x) (<= main_x 117)), 56122#(and (<= 118 main_x) (<= main_x 118)), 56123#(and (<= main_x 119) (<= 119 main_x)), 56124#(and (<= main_x 120) (<= 120 main_x)), 56125#(and (<= 121 main_x) (<= main_x 121)), 56126#(and (<= 122 main_x) (<= main_x 122)), 56127#(and (<= main_x 123) (<= 123 main_x)), 56128#(and (<= main_x 124) (<= 124 main_x)), 56129#(and (<= main_x 125) (<= 125 main_x)), 56130#(and (<= 126 main_x) (<= main_x 126)), 56131#(and (<= main_x 127) (<= 127 main_x)), 56132#(and (<= main_x 128) (<= 128 main_x)), 56133#(and (<= 129 main_x) (<= main_x 129)), 56134#(and (<= main_x 130) (<= 130 main_x)), 56135#(and (<= main_x 131) (<= 131 main_x)), 56136#(and (<= 132 main_x) (<= main_x 132)), 56137#(and (<= main_x 133) (<= 133 main_x)), 56138#(and (<= main_x 134) (<= 134 main_x)), 56139#(and (<= main_x 135) (<= 135 main_x)), 56140#(and (<= main_x 136) (<= 136 main_x)), 56141#(and (<= 137 main_x) (<= main_x 137)), 56142#(and (<= main_x 138) (<= 138 main_x)), 56143#(and (<= main_x 139) (<= 139 main_x)), 56144#(and (<= main_x 140) (<= 140 main_x)), 56145#(and (<= main_x 141) (<= 141 main_x)), 56146#(and (<= 142 main_x) (<= main_x 142)), 56147#(and (<= 143 main_x) (<= main_x 143)), 56148#(and (<= main_x 144) (<= 144 main_x)), 56149#(and (<= 145 main_x) (<= main_x 145)), 56150#(or (<= (+ main_x 110) 0) (<= 146 main_x)), 56002#true, 56003#false, 56004#(and (<= main_x 0) (<= 0 main_x)), 56005#(and (<= 1 main_x) (<= main_x 1)), 56006#(and (<= 2 main_x) (<= main_x 2)), 56007#(and (<= 3 main_x) (<= main_x 3)), 56008#(and (<= main_x 4) (<= 4 main_x)), 56009#(and (<= 5 main_x) (<= main_x 5)), 56010#(and (<= 6 main_x) (<= main_x 6)), 56011#(and (<= main_x 7) (<= 7 main_x)), 56012#(and (<= main_x 8) (<= 8 main_x)), 56013#(and (<= 9 main_x) (<= main_x 9)), 56014#(and (<= main_x 10) (<= 10 main_x)), 56015#(and (<= 11 main_x) (<= main_x 11)), 56016#(and (<= 12 main_x) (<= main_x 12)), 56017#(and (<= 13 main_x) (<= main_x 13)), 56018#(and (<= 14 main_x) (<= main_x 14)), 56019#(and (<= 15 main_x) (<= main_x 15)), 56020#(and (<= main_x 16) (<= 16 main_x)), 56021#(and (<= 17 main_x) (<= main_x 17)), 56022#(and (<= main_x 18) (<= 18 main_x)), 56023#(and (<= main_x 19) (<= 19 main_x)), 56024#(and (<= 20 main_x) (<= main_x 20)), 56025#(and (<= 21 main_x) (<= main_x 21)), 56026#(and (<= main_x 22) (<= 22 main_x)), 56027#(and (<= 23 main_x) (<= main_x 23)), 56028#(and (<= main_x 24) (<= 24 main_x)), 56029#(and (<= main_x 25) (<= 25 main_x)), 56030#(and (<= main_x 26) (<= 26 main_x)), 56031#(and (<= main_x 27) (<= 27 main_x)), 56032#(and (<= main_x 28) (<= 28 main_x)), 56033#(and (<= main_x 29) (<= 29 main_x)), 56034#(and (<= 30 main_x) (<= main_x 30)), 56035#(and (<= 31 main_x) (<= main_x 31)), 56036#(and (<= 32 main_x) (<= main_x 32)), 56037#(and (<= main_x 33) (<= 33 main_x)), 56038#(and (<= 34 main_x) (<= main_x 34)), 56039#(and (<= main_x 35) (<= 35 main_x)), 56040#(and (<= main_x 36) (<= 36 main_x)), 56041#(and (<= 37 main_x) (<= main_x 37)), 56042#(and (<= 38 main_x) (<= main_x 38)), 56043#(and (<= 39 main_x) (<= main_x 39)), 56044#(and (<= main_x 40) (<= 40 main_x)), 56045#(and (<= 41 main_x) (<= main_x 41)), 56046#(and (<= 42 main_x) (<= main_x 42)), 56047#(and (<= 43 main_x) (<= main_x 43)), 56048#(and (<= main_x 44) (<= 44 main_x)), 56049#(and (<= 45 main_x) (<= main_x 45)), 56050#(and (<= 46 main_x) (<= main_x 46)), 56051#(and (<= 47 main_x) (<= main_x 47)), 56052#(and (<= 48 main_x) (<= main_x 48)), 56053#(and (<= main_x 49) (<= 49 main_x)), 56054#(and (<= main_x 50) (<= 50 main_x)), 56055#(and (<= main_x 51) (<= 51 main_x)), 56056#(and (<= 52 main_x) (<= main_x 52)), 56057#(and (<= main_x 53) (<= 53 main_x)), 56058#(and (<= 54 main_x) (<= main_x 54)), 56059#(and (<= 55 main_x) (<= main_x 55)), 56060#(and (<= main_x 56) (<= 56 main_x)), 56061#(and (<= main_x 57) (<= 57 main_x)), 56062#(and (<= 58 main_x) (<= main_x 58)), 56063#(and (<= 59 main_x) (<= main_x 59))] [2018-07-23 13:53:27,010 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 13:53:27,010 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:53:27,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:53:27,011 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=21757, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:53:27,011 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand 149 states. [2018-07-23 13:53:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:28,524 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:53:28,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:53:28,524 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 148 [2018-07-23 13:53:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:28,524 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:53:28,525 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:53:28,526 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=21757, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:53:28,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:53:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:53:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:53:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:53:28,532 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 148 [2018-07-23 13:53:28,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:28,532 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:53:28,532 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:53:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:53:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:53:28,533 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:28,533 INFO L357 BasicCegarLoop]: trace histogram [147, 1, 1] [2018-07-23 13:53:28,533 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:28,534 INFO L82 PathProgramCache]: Analyzing trace with hash -300807720, now seen corresponding path program 147 times [2018-07-23 13:53:28,534 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:29,699 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 13:53:29,699 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:29,699 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:53:29,700 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:29,700 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 13:53:29,700 INFO L185 omatonBuilderFactory]: Interpolants [56832#(and (<= 77 main_x) (<= main_x 77)), 56833#(and (<= 78 main_x) (<= main_x 78)), 56834#(and (<= 79 main_x) (<= main_x 79)), 56835#(and (<= main_x 80) (<= 80 main_x)), 56836#(and (<= 81 main_x) (<= main_x 81)), 56837#(and (<= 82 main_x) (<= main_x 82)), 56838#(and (<= 83 main_x) (<= main_x 83)), 56839#(and (<= main_x 84) (<= 84 main_x)), 56840#(and (<= 85 main_x) (<= main_x 85)), 56841#(and (<= 86 main_x) (<= main_x 86)), 56842#(and (<= 87 main_x) (<= main_x 87)), 56843#(and (<= 88 main_x) (<= main_x 88)), 56844#(and (<= 89 main_x) (<= main_x 89)), 56845#(and (<= 90 main_x) (<= main_x 90)), 56846#(and (<= main_x 91) (<= 91 main_x)), 56847#(and (<= main_x 92) (<= 92 main_x)), 56848#(and (<= 93 main_x) (<= main_x 93)), 56849#(and (<= 94 main_x) (<= main_x 94)), 56850#(and (<= 95 main_x) (<= main_x 95)), 56851#(and (<= 96 main_x) (<= main_x 96)), 56852#(and (<= main_x 97) (<= 97 main_x)), 56853#(and (<= main_x 98) (<= 98 main_x)), 56854#(and (<= 99 main_x) (<= main_x 99)), 56855#(and (<= main_x 100) (<= 100 main_x)), 56856#(and (<= 101 main_x) (<= main_x 101)), 56857#(and (<= main_x 102) (<= 102 main_x)), 56858#(and (<= main_x 103) (<= 103 main_x)), 56859#(and (<= main_x 104) (<= 104 main_x)), 56860#(and (<= main_x 105) (<= 105 main_x)), 56861#(and (<= 106 main_x) (<= main_x 106)), 56862#(and (<= main_x 107) (<= 107 main_x)), 56863#(and (<= 108 main_x) (<= main_x 108)), 56864#(and (<= 109 main_x) (<= main_x 109)), 56865#(and (<= main_x 110) (<= 110 main_x)), 56866#(and (<= main_x 111) (<= 111 main_x)), 56867#(and (<= main_x 112) (<= 112 main_x)), 56868#(and (<= main_x 113) (<= 113 main_x)), 56869#(and (<= 114 main_x) (<= main_x 114)), 56870#(and (<= 115 main_x) (<= main_x 115)), 56871#(and (<= 116 main_x) (<= main_x 116)), 56872#(and (<= 117 main_x) (<= main_x 117)), 56873#(and (<= 118 main_x) (<= main_x 118)), 56874#(and (<= main_x 119) (<= 119 main_x)), 56875#(and (<= main_x 120) (<= 120 main_x)), 56876#(and (<= 121 main_x) (<= main_x 121)), 56877#(and (<= 122 main_x) (<= main_x 122)), 56878#(and (<= main_x 123) (<= 123 main_x)), 56879#(and (<= main_x 124) (<= 124 main_x)), 56880#(and (<= main_x 125) (<= 125 main_x)), 56881#(and (<= 126 main_x) (<= main_x 126)), 56882#(and (<= main_x 127) (<= 127 main_x)), 56883#(and (<= main_x 128) (<= 128 main_x)), 56884#(and (<= 129 main_x) (<= main_x 129)), 56885#(and (<= main_x 130) (<= 130 main_x)), 56886#(and (<= main_x 131) (<= 131 main_x)), 56887#(and (<= 132 main_x) (<= main_x 132)), 56888#(and (<= main_x 133) (<= 133 main_x)), 56889#(and (<= main_x 134) (<= 134 main_x)), 56890#(and (<= main_x 135) (<= 135 main_x)), 56891#(and (<= main_x 136) (<= 136 main_x)), 56892#(and (<= 137 main_x) (<= main_x 137)), 56893#(and (<= main_x 138) (<= 138 main_x)), 56894#(and (<= main_x 139) (<= 139 main_x)), 56895#(and (<= main_x 140) (<= 140 main_x)), 56896#(and (<= main_x 141) (<= 141 main_x)), 56897#(and (<= 142 main_x) (<= main_x 142)), 56898#(and (<= 143 main_x) (<= main_x 143)), 56899#(and (<= main_x 144) (<= 144 main_x)), 56900#(and (<= 145 main_x) (<= main_x 145)), 56901#(and (<= main_x 146) (<= 146 main_x)), 56902#(or (<= (+ main_x 109) 0) (<= 147 main_x)), 56753#true, 56754#false, 56755#(and (<= main_x 0) (<= 0 main_x)), 56756#(and (<= 1 main_x) (<= main_x 1)), 56757#(and (<= 2 main_x) (<= main_x 2)), 56758#(and (<= 3 main_x) (<= main_x 3)), 56759#(and (<= main_x 4) (<= 4 main_x)), 56760#(and (<= 5 main_x) (<= main_x 5)), 56761#(and (<= 6 main_x) (<= main_x 6)), 56762#(and (<= main_x 7) (<= 7 main_x)), 56763#(and (<= main_x 8) (<= 8 main_x)), 56764#(and (<= 9 main_x) (<= main_x 9)), 56765#(and (<= main_x 10) (<= 10 main_x)), 56766#(and (<= 11 main_x) (<= main_x 11)), 56767#(and (<= 12 main_x) (<= main_x 12)), 56768#(and (<= 13 main_x) (<= main_x 13)), 56769#(and (<= 14 main_x) (<= main_x 14)), 56770#(and (<= 15 main_x) (<= main_x 15)), 56771#(and (<= main_x 16) (<= 16 main_x)), 56772#(and (<= 17 main_x) (<= main_x 17)), 56773#(and (<= main_x 18) (<= 18 main_x)), 56774#(and (<= main_x 19) (<= 19 main_x)), 56775#(and (<= 20 main_x) (<= main_x 20)), 56776#(and (<= 21 main_x) (<= main_x 21)), 56777#(and (<= main_x 22) (<= 22 main_x)), 56778#(and (<= 23 main_x) (<= main_x 23)), 56779#(and (<= main_x 24) (<= 24 main_x)), 56780#(and (<= main_x 25) (<= 25 main_x)), 56781#(and (<= main_x 26) (<= 26 main_x)), 56782#(and (<= main_x 27) (<= 27 main_x)), 56783#(and (<= main_x 28) (<= 28 main_x)), 56784#(and (<= main_x 29) (<= 29 main_x)), 56785#(and (<= 30 main_x) (<= main_x 30)), 56786#(and (<= 31 main_x) (<= main_x 31)), 56787#(and (<= 32 main_x) (<= main_x 32)), 56788#(and (<= main_x 33) (<= 33 main_x)), 56789#(and (<= 34 main_x) (<= main_x 34)), 56790#(and (<= main_x 35) (<= 35 main_x)), 56791#(and (<= main_x 36) (<= 36 main_x)), 56792#(and (<= 37 main_x) (<= main_x 37)), 56793#(and (<= 38 main_x) (<= main_x 38)), 56794#(and (<= 39 main_x) (<= main_x 39)), 56795#(and (<= main_x 40) (<= 40 main_x)), 56796#(and (<= 41 main_x) (<= main_x 41)), 56797#(and (<= 42 main_x) (<= main_x 42)), 56798#(and (<= 43 main_x) (<= main_x 43)), 56799#(and (<= main_x 44) (<= 44 main_x)), 56800#(and (<= 45 main_x) (<= main_x 45)), 56801#(and (<= 46 main_x) (<= main_x 46)), 56802#(and (<= 47 main_x) (<= main_x 47)), 56803#(and (<= 48 main_x) (<= main_x 48)), 56804#(and (<= main_x 49) (<= 49 main_x)), 56805#(and (<= main_x 50) (<= 50 main_x)), 56806#(and (<= main_x 51) (<= 51 main_x)), 56807#(and (<= 52 main_x) (<= main_x 52)), 56808#(and (<= main_x 53) (<= 53 main_x)), 56809#(and (<= 54 main_x) (<= main_x 54)), 56810#(and (<= 55 main_x) (<= main_x 55)), 56811#(and (<= main_x 56) (<= 56 main_x)), 56812#(and (<= main_x 57) (<= 57 main_x)), 56813#(and (<= 58 main_x) (<= main_x 58)), 56814#(and (<= 59 main_x) (<= main_x 59)), 56815#(and (<= main_x 60) (<= 60 main_x)), 56816#(and (<= main_x 61) (<= 61 main_x)), 56817#(and (<= main_x 62) (<= 62 main_x)), 56818#(and (<= 63 main_x) (<= main_x 63)), 56819#(and (<= 64 main_x) (<= main_x 64)), 56820#(and (<= main_x 65) (<= 65 main_x)), 56821#(and (<= main_x 66) (<= 66 main_x)), 56822#(and (<= 67 main_x) (<= main_x 67)), 56823#(and (<= main_x 68) (<= 68 main_x)), 56824#(and (<= 69 main_x) (<= main_x 69)), 56825#(and (<= main_x 70) (<= 70 main_x)), 56826#(and (<= 71 main_x) (<= main_x 71)), 56827#(and (<= main_x 72) (<= 72 main_x)), 56828#(and (<= main_x 73) (<= 73 main_x)), 56829#(and (<= 74 main_x) (<= main_x 74)), 56830#(and (<= main_x 75) (<= 75 main_x)), 56831#(and (<= main_x 76) (<= 76 main_x))] [2018-07-23 13:53:29,701 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 13:53:29,701 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:53:29,701 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:53:29,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=22053, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:53:29,702 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 150 states. [2018-07-23 13:53:31,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:31,223 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2018-07-23 13:53:31,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:53:31,223 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 149 [2018-07-23 13:53:31,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:31,223 INFO L225 Difference]: With dead ends: 152 [2018-07-23 13:53:31,224 INFO L226 Difference]: Without dead ends: 151 [2018-07-23 13:53:31,225 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=22053, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:53:31,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2018-07-23 13:53:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2018-07-23 13:53:31,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-07-23 13:53:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2018-07-23 13:53:31,233 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 149 [2018-07-23 13:53:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:31,233 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2018-07-23 13:53:31,233 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:53:31,233 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2018-07-23 13:53:31,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-07-23 13:53:31,234 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:31,234 INFO L357 BasicCegarLoop]: trace histogram [148, 1, 1] [2018-07-23 13:53:31,234 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:31,235 INFO L82 PathProgramCache]: Analyzing trace with hash -735104493, now seen corresponding path program 148 times [2018-07-23 13:53:31,235 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:32,374 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 13:53:32,374 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:32,374 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:53:32,374 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:32,375 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 13:53:32,375 INFO L185 omatonBuilderFactory]: Interpolants [57600#(and (<= 89 main_x) (<= main_x 89)), 57601#(and (<= 90 main_x) (<= main_x 90)), 57602#(and (<= main_x 91) (<= 91 main_x)), 57603#(and (<= main_x 92) (<= 92 main_x)), 57604#(and (<= 93 main_x) (<= main_x 93)), 57605#(and (<= 94 main_x) (<= main_x 94)), 57606#(and (<= 95 main_x) (<= main_x 95)), 57607#(and (<= 96 main_x) (<= main_x 96)), 57608#(and (<= main_x 97) (<= 97 main_x)), 57609#(and (<= main_x 98) (<= 98 main_x)), 57610#(and (<= 99 main_x) (<= main_x 99)), 57611#(and (<= main_x 100) (<= 100 main_x)), 57612#(and (<= 101 main_x) (<= main_x 101)), 57613#(and (<= main_x 102) (<= 102 main_x)), 57614#(and (<= main_x 103) (<= 103 main_x)), 57615#(and (<= main_x 104) (<= 104 main_x)), 57616#(and (<= main_x 105) (<= 105 main_x)), 57617#(and (<= 106 main_x) (<= main_x 106)), 57618#(and (<= main_x 107) (<= 107 main_x)), 57619#(and (<= 108 main_x) (<= main_x 108)), 57620#(and (<= 109 main_x) (<= main_x 109)), 57621#(and (<= main_x 110) (<= 110 main_x)), 57622#(and (<= main_x 111) (<= 111 main_x)), 57623#(and (<= main_x 112) (<= 112 main_x)), 57624#(and (<= main_x 113) (<= 113 main_x)), 57625#(and (<= 114 main_x) (<= main_x 114)), 57626#(and (<= 115 main_x) (<= main_x 115)), 57627#(and (<= 116 main_x) (<= main_x 116)), 57628#(and (<= 117 main_x) (<= main_x 117)), 57629#(and (<= 118 main_x) (<= main_x 118)), 57630#(and (<= main_x 119) (<= 119 main_x)), 57631#(and (<= main_x 120) (<= 120 main_x)), 57632#(and (<= 121 main_x) (<= main_x 121)), 57633#(and (<= 122 main_x) (<= main_x 122)), 57634#(and (<= main_x 123) (<= 123 main_x)), 57635#(and (<= main_x 124) (<= 124 main_x)), 57636#(and (<= main_x 125) (<= 125 main_x)), 57637#(and (<= 126 main_x) (<= main_x 126)), 57638#(and (<= main_x 127) (<= 127 main_x)), 57639#(and (<= main_x 128) (<= 128 main_x)), 57640#(and (<= 129 main_x) (<= main_x 129)), 57641#(and (<= main_x 130) (<= 130 main_x)), 57642#(and (<= main_x 131) (<= 131 main_x)), 57643#(and (<= 132 main_x) (<= main_x 132)), 57644#(and (<= main_x 133) (<= 133 main_x)), 57645#(and (<= main_x 134) (<= 134 main_x)), 57646#(and (<= main_x 135) (<= 135 main_x)), 57647#(and (<= main_x 136) (<= 136 main_x)), 57648#(and (<= 137 main_x) (<= main_x 137)), 57649#(and (<= main_x 138) (<= 138 main_x)), 57650#(and (<= main_x 139) (<= 139 main_x)), 57651#(and (<= main_x 140) (<= 140 main_x)), 57652#(and (<= main_x 141) (<= 141 main_x)), 57653#(and (<= 142 main_x) (<= main_x 142)), 57654#(and (<= 143 main_x) (<= main_x 143)), 57655#(and (<= main_x 144) (<= 144 main_x)), 57656#(and (<= 145 main_x) (<= main_x 145)), 57657#(and (<= main_x 146) (<= 146 main_x)), 57658#(and (<= main_x 147) (<= 147 main_x)), 57659#(or (<= 148 main_x) (<= (+ main_x 108) 0)), 57509#true, 57510#false, 57511#(and (<= main_x 0) (<= 0 main_x)), 57512#(and (<= 1 main_x) (<= main_x 1)), 57513#(and (<= 2 main_x) (<= main_x 2)), 57514#(and (<= 3 main_x) (<= main_x 3)), 57515#(and (<= main_x 4) (<= 4 main_x)), 57516#(and (<= 5 main_x) (<= main_x 5)), 57517#(and (<= 6 main_x) (<= main_x 6)), 57518#(and (<= main_x 7) (<= 7 main_x)), 57519#(and (<= main_x 8) (<= 8 main_x)), 57520#(and (<= 9 main_x) (<= main_x 9)), 57521#(and (<= main_x 10) (<= 10 main_x)), 57522#(and (<= 11 main_x) (<= main_x 11)), 57523#(and (<= 12 main_x) (<= main_x 12)), 57524#(and (<= 13 main_x) (<= main_x 13)), 57525#(and (<= 14 main_x) (<= main_x 14)), 57526#(and (<= 15 main_x) (<= main_x 15)), 57527#(and (<= main_x 16) (<= 16 main_x)), 57528#(and (<= 17 main_x) (<= main_x 17)), 57529#(and (<= main_x 18) (<= 18 main_x)), 57530#(and (<= main_x 19) (<= 19 main_x)), 57531#(and (<= 20 main_x) (<= main_x 20)), 57532#(and (<= 21 main_x) (<= main_x 21)), 57533#(and (<= main_x 22) (<= 22 main_x)), 57534#(and (<= 23 main_x) (<= main_x 23)), 57535#(and (<= main_x 24) (<= 24 main_x)), 57536#(and (<= main_x 25) (<= 25 main_x)), 57537#(and (<= main_x 26) (<= 26 main_x)), 57538#(and (<= main_x 27) (<= 27 main_x)), 57539#(and (<= main_x 28) (<= 28 main_x)), 57540#(and (<= main_x 29) (<= 29 main_x)), 57541#(and (<= 30 main_x) (<= main_x 30)), 57542#(and (<= 31 main_x) (<= main_x 31)), 57543#(and (<= 32 main_x) (<= main_x 32)), 57544#(and (<= main_x 33) (<= 33 main_x)), 57545#(and (<= 34 main_x) (<= main_x 34)), 57546#(and (<= main_x 35) (<= 35 main_x)), 57547#(and (<= main_x 36) (<= 36 main_x)), 57548#(and (<= 37 main_x) (<= main_x 37)), 57549#(and (<= 38 main_x) (<= main_x 38)), 57550#(and (<= 39 main_x) (<= main_x 39)), 57551#(and (<= main_x 40) (<= 40 main_x)), 57552#(and (<= 41 main_x) (<= main_x 41)), 57553#(and (<= 42 main_x) (<= main_x 42)), 57554#(and (<= 43 main_x) (<= main_x 43)), 57555#(and (<= main_x 44) (<= 44 main_x)), 57556#(and (<= 45 main_x) (<= main_x 45)), 57557#(and (<= 46 main_x) (<= main_x 46)), 57558#(and (<= 47 main_x) (<= main_x 47)), 57559#(and (<= 48 main_x) (<= main_x 48)), 57560#(and (<= main_x 49) (<= 49 main_x)), 57561#(and (<= main_x 50) (<= 50 main_x)), 57562#(and (<= main_x 51) (<= 51 main_x)), 57563#(and (<= 52 main_x) (<= main_x 52)), 57564#(and (<= main_x 53) (<= 53 main_x)), 57565#(and (<= 54 main_x) (<= main_x 54)), 57566#(and (<= 55 main_x) (<= main_x 55)), 57567#(and (<= main_x 56) (<= 56 main_x)), 57568#(and (<= main_x 57) (<= 57 main_x)), 57569#(and (<= 58 main_x) (<= main_x 58)), 57570#(and (<= 59 main_x) (<= main_x 59)), 57571#(and (<= main_x 60) (<= 60 main_x)), 57572#(and (<= main_x 61) (<= 61 main_x)), 57573#(and (<= main_x 62) (<= 62 main_x)), 57574#(and (<= 63 main_x) (<= main_x 63)), 57575#(and (<= 64 main_x) (<= main_x 64)), 57576#(and (<= main_x 65) (<= 65 main_x)), 57577#(and (<= main_x 66) (<= 66 main_x)), 57578#(and (<= 67 main_x) (<= main_x 67)), 57579#(and (<= main_x 68) (<= 68 main_x)), 57580#(and (<= 69 main_x) (<= main_x 69)), 57581#(and (<= main_x 70) (<= 70 main_x)), 57582#(and (<= 71 main_x) (<= main_x 71)), 57583#(and (<= main_x 72) (<= 72 main_x)), 57584#(and (<= main_x 73) (<= 73 main_x)), 57585#(and (<= 74 main_x) (<= main_x 74)), 57586#(and (<= main_x 75) (<= 75 main_x)), 57587#(and (<= main_x 76) (<= 76 main_x)), 57588#(and (<= 77 main_x) (<= main_x 77)), 57589#(and (<= 78 main_x) (<= main_x 78)), 57590#(and (<= 79 main_x) (<= main_x 79)), 57591#(and (<= main_x 80) (<= 80 main_x)), 57592#(and (<= 81 main_x) (<= main_x 81)), 57593#(and (<= 82 main_x) (<= main_x 82)), 57594#(and (<= 83 main_x) (<= main_x 83)), 57595#(and (<= main_x 84) (<= 84 main_x)), 57596#(and (<= 85 main_x) (<= main_x 85)), 57597#(and (<= 86 main_x) (<= main_x 86)), 57598#(and (<= 87 main_x) (<= main_x 87)), 57599#(and (<= 88 main_x) (<= main_x 88))] [2018-07-23 13:53:32,376 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 13:53:32,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:53:32,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:53:32,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:53:32,377 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand 151 states. [2018-07-23 13:53:33,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:33,949 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:53:33,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:53:33,949 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 150 [2018-07-23 13:53:33,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:33,949 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:53:33,949 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:53:33,950 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:53:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:53:33,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:53:33,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:53:33,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:53:33,958 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 150 [2018-07-23 13:53:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:33,958 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:53:33,958 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:53:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:53:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:53:33,959 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:33,959 INFO L357 BasicCegarLoop]: trace histogram [149, 1, 1] [2018-07-23 13:53:33,959 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:33,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1313402568, now seen corresponding path program 149 times [2018-07-23 13:53:33,959 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:35,178 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:35,178 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2018-07-23 13:53:35,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:35,178 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 13:53:35,179 INFO L185 omatonBuilderFactory]: Interpolants [58368#(and (<= 96 main_x) (<= main_x 96)), 58369#(and (<= main_x 97) (<= 97 main_x)), 58370#(and (<= main_x 98) (<= 98 main_x)), 58371#(and (<= 99 main_x) (<= main_x 99)), 58372#(and (<= main_x 100) (<= 100 main_x)), 58373#(and (<= 101 main_x) (<= main_x 101)), 58374#(and (<= main_x 102) (<= 102 main_x)), 58375#(and (<= main_x 103) (<= 103 main_x)), 58376#(and (<= main_x 104) (<= 104 main_x)), 58377#(and (<= main_x 105) (<= 105 main_x)), 58378#(and (<= 106 main_x) (<= main_x 106)), 58379#(and (<= main_x 107) (<= 107 main_x)), 58380#(and (<= 108 main_x) (<= main_x 108)), 58381#(and (<= 109 main_x) (<= main_x 109)), 58382#(and (<= main_x 110) (<= 110 main_x)), 58383#(and (<= main_x 111) (<= 111 main_x)), 58384#(and (<= main_x 112) (<= 112 main_x)), 58385#(and (<= main_x 113) (<= 113 main_x)), 58386#(and (<= 114 main_x) (<= main_x 114)), 58387#(and (<= 115 main_x) (<= main_x 115)), 58388#(and (<= 116 main_x) (<= main_x 116)), 58389#(and (<= 117 main_x) (<= main_x 117)), 58390#(and (<= 118 main_x) (<= main_x 118)), 58391#(and (<= main_x 119) (<= 119 main_x)), 58392#(and (<= main_x 120) (<= 120 main_x)), 58393#(and (<= 121 main_x) (<= main_x 121)), 58394#(and (<= 122 main_x) (<= main_x 122)), 58395#(and (<= main_x 123) (<= 123 main_x)), 58396#(and (<= main_x 124) (<= 124 main_x)), 58397#(and (<= main_x 125) (<= 125 main_x)), 58398#(and (<= 126 main_x) (<= main_x 126)), 58399#(and (<= main_x 127) (<= 127 main_x)), 58400#(and (<= main_x 128) (<= 128 main_x)), 58401#(and (<= 129 main_x) (<= main_x 129)), 58402#(and (<= main_x 130) (<= 130 main_x)), 58403#(and (<= main_x 131) (<= 131 main_x)), 58404#(and (<= 132 main_x) (<= main_x 132)), 58405#(and (<= main_x 133) (<= 133 main_x)), 58406#(and (<= main_x 134) (<= 134 main_x)), 58407#(and (<= main_x 135) (<= 135 main_x)), 58408#(and (<= main_x 136) (<= 136 main_x)), 58409#(and (<= 137 main_x) (<= main_x 137)), 58410#(and (<= main_x 138) (<= 138 main_x)), 58411#(and (<= main_x 139) (<= 139 main_x)), 58412#(and (<= main_x 140) (<= 140 main_x)), 58413#(and (<= main_x 141) (<= 141 main_x)), 58414#(and (<= 142 main_x) (<= main_x 142)), 58415#(and (<= 143 main_x) (<= main_x 143)), 58416#(and (<= main_x 144) (<= 144 main_x)), 58417#(and (<= 145 main_x) (<= main_x 145)), 58418#(and (<= main_x 146) (<= 146 main_x)), 58419#(and (<= main_x 147) (<= 147 main_x)), 58420#(and (<= 148 main_x) (<= main_x 148)), 58421#(or (<= 149 main_x) (<= (+ main_x 107) 0)), 58270#true, 58271#false, 58272#(and (<= main_x 0) (<= 0 main_x)), 58273#(and (<= 1 main_x) (<= main_x 1)), 58274#(and (<= 2 main_x) (<= main_x 2)), 58275#(and (<= 3 main_x) (<= main_x 3)), 58276#(and (<= main_x 4) (<= 4 main_x)), 58277#(and (<= 5 main_x) (<= main_x 5)), 58278#(and (<= 6 main_x) (<= main_x 6)), 58279#(and (<= main_x 7) (<= 7 main_x)), 58280#(and (<= main_x 8) (<= 8 main_x)), 58281#(and (<= 9 main_x) (<= main_x 9)), 58282#(and (<= main_x 10) (<= 10 main_x)), 58283#(and (<= 11 main_x) (<= main_x 11)), 58284#(and (<= 12 main_x) (<= main_x 12)), 58285#(and (<= 13 main_x) (<= main_x 13)), 58286#(and (<= 14 main_x) (<= main_x 14)), 58287#(and (<= 15 main_x) (<= main_x 15)), 58288#(and (<= main_x 16) (<= 16 main_x)), 58289#(and (<= 17 main_x) (<= main_x 17)), 58290#(and (<= main_x 18) (<= 18 main_x)), 58291#(and (<= main_x 19) (<= 19 main_x)), 58292#(and (<= 20 main_x) (<= main_x 20)), 58293#(and (<= 21 main_x) (<= main_x 21)), 58294#(and (<= main_x 22) (<= 22 main_x)), 58295#(and (<= 23 main_x) (<= main_x 23)), 58296#(and (<= main_x 24) (<= 24 main_x)), 58297#(and (<= main_x 25) (<= 25 main_x)), 58298#(and (<= main_x 26) (<= 26 main_x)), 58299#(and (<= main_x 27) (<= 27 main_x)), 58300#(and (<= main_x 28) (<= 28 main_x)), 58301#(and (<= main_x 29) (<= 29 main_x)), 58302#(and (<= 30 main_x) (<= main_x 30)), 58303#(and (<= 31 main_x) (<= main_x 31)), 58304#(and (<= 32 main_x) (<= main_x 32)), 58305#(and (<= main_x 33) (<= 33 main_x)), 58306#(and (<= 34 main_x) (<= main_x 34)), 58307#(and (<= main_x 35) (<= 35 main_x)), 58308#(and (<= main_x 36) (<= 36 main_x)), 58309#(and (<= 37 main_x) (<= main_x 37)), 58310#(and (<= 38 main_x) (<= main_x 38)), 58311#(and (<= 39 main_x) (<= main_x 39)), 58312#(and (<= main_x 40) (<= 40 main_x)), 58313#(and (<= 41 main_x) (<= main_x 41)), 58314#(and (<= 42 main_x) (<= main_x 42)), 58315#(and (<= 43 main_x) (<= main_x 43)), 58316#(and (<= main_x 44) (<= 44 main_x)), 58317#(and (<= 45 main_x) (<= main_x 45)), 58318#(and (<= 46 main_x) (<= main_x 46)), 58319#(and (<= 47 main_x) (<= main_x 47)), 58320#(and (<= 48 main_x) (<= main_x 48)), 58321#(and (<= main_x 49) (<= 49 main_x)), 58322#(and (<= main_x 50) (<= 50 main_x)), 58323#(and (<= main_x 51) (<= 51 main_x)), 58324#(and (<= 52 main_x) (<= main_x 52)), 58325#(and (<= main_x 53) (<= 53 main_x)), 58326#(and (<= 54 main_x) (<= main_x 54)), 58327#(and (<= 55 main_x) (<= main_x 55)), 58328#(and (<= main_x 56) (<= 56 main_x)), 58329#(and (<= main_x 57) (<= 57 main_x)), 58330#(and (<= 58 main_x) (<= main_x 58)), 58331#(and (<= 59 main_x) (<= main_x 59)), 58332#(and (<= main_x 60) (<= 60 main_x)), 58333#(and (<= main_x 61) (<= 61 main_x)), 58334#(and (<= main_x 62) (<= 62 main_x)), 58335#(and (<= 63 main_x) (<= main_x 63)), 58336#(and (<= 64 main_x) (<= main_x 64)), 58337#(and (<= main_x 65) (<= 65 main_x)), 58338#(and (<= main_x 66) (<= 66 main_x)), 58339#(and (<= 67 main_x) (<= main_x 67)), 58340#(and (<= main_x 68) (<= 68 main_x)), 58341#(and (<= 69 main_x) (<= main_x 69)), 58342#(and (<= main_x 70) (<= 70 main_x)), 58343#(and (<= 71 main_x) (<= main_x 71)), 58344#(and (<= main_x 72) (<= 72 main_x)), 58345#(and (<= main_x 73) (<= 73 main_x)), 58346#(and (<= 74 main_x) (<= main_x 74)), 58347#(and (<= main_x 75) (<= 75 main_x)), 58348#(and (<= main_x 76) (<= 76 main_x)), 58349#(and (<= 77 main_x) (<= main_x 77)), 58350#(and (<= 78 main_x) (<= main_x 78)), 58351#(and (<= 79 main_x) (<= main_x 79)), 58352#(and (<= main_x 80) (<= 80 main_x)), 58353#(and (<= 81 main_x) (<= main_x 81)), 58354#(and (<= 82 main_x) (<= main_x 82)), 58355#(and (<= 83 main_x) (<= main_x 83)), 58356#(and (<= main_x 84) (<= 84 main_x)), 58357#(and (<= 85 main_x) (<= main_x 85)), 58358#(and (<= 86 main_x) (<= main_x 86)), 58359#(and (<= 87 main_x) (<= main_x 87)), 58360#(and (<= 88 main_x) (<= main_x 88)), 58361#(and (<= 89 main_x) (<= main_x 89)), 58362#(and (<= 90 main_x) (<= main_x 90)), 58363#(and (<= main_x 91) (<= 91 main_x)), 58364#(and (<= main_x 92) (<= 92 main_x)), 58365#(and (<= 93 main_x) (<= main_x 93)), 58366#(and (<= 94 main_x) (<= main_x 94)), 58367#(and (<= 95 main_x) (<= main_x 95))] [2018-07-23 13:53:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 11175 backedges. 0 proven. 11175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:35,179 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:53:35,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:53:35,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=22651, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:53:35,180 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 152 states. [2018-07-23 13:53:36,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:36,752 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2018-07-23 13:53:36,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:53:36,752 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 151 [2018-07-23 13:53:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:36,753 INFO L225 Difference]: With dead ends: 154 [2018-07-23 13:53:36,753 INFO L226 Difference]: Without dead ends: 153 [2018-07-23 13:53:36,754 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=22651, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:53:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-23 13:53:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-07-23 13:53:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-07-23 13:53:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2018-07-23 13:53:36,760 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 151 [2018-07-23 13:53:36,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:36,760 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2018-07-23 13:53:36,760 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:53:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2018-07-23 13:53:36,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-23 13:53:36,760 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:36,760 INFO L357 BasicCegarLoop]: trace histogram [150, 1, 1] [2018-07-23 13:53:36,761 INFO L414 AbstractCegarLoop]: === Iteration 151 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:36,761 INFO L82 PathProgramCache]: Analyzing trace with hash -2060773709, now seen corresponding path program 150 times [2018-07-23 13:53:36,761 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:37,972 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,972 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:37,972 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:53:37,973 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:37,973 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 13:53:37,973 INFO L185 omatonBuilderFactory]: Interpolants [59136#(and (<= main_x 98) (<= 98 main_x)), 59137#(and (<= 99 main_x) (<= main_x 99)), 59138#(and (<= main_x 100) (<= 100 main_x)), 59139#(and (<= 101 main_x) (<= main_x 101)), 59140#(and (<= main_x 102) (<= 102 main_x)), 59141#(and (<= main_x 103) (<= 103 main_x)), 59142#(and (<= main_x 104) (<= 104 main_x)), 59143#(and (<= main_x 105) (<= 105 main_x)), 59144#(and (<= 106 main_x) (<= main_x 106)), 59145#(and (<= main_x 107) (<= 107 main_x)), 59146#(and (<= 108 main_x) (<= main_x 108)), 59147#(and (<= 109 main_x) (<= main_x 109)), 59148#(and (<= main_x 110) (<= 110 main_x)), 59149#(and (<= main_x 111) (<= 111 main_x)), 59150#(and (<= main_x 112) (<= 112 main_x)), 59151#(and (<= main_x 113) (<= 113 main_x)), 59152#(and (<= 114 main_x) (<= main_x 114)), 59153#(and (<= 115 main_x) (<= main_x 115)), 59154#(and (<= 116 main_x) (<= main_x 116)), 59155#(and (<= 117 main_x) (<= main_x 117)), 59156#(and (<= 118 main_x) (<= main_x 118)), 59157#(and (<= main_x 119) (<= 119 main_x)), 59158#(and (<= main_x 120) (<= 120 main_x)), 59159#(and (<= 121 main_x) (<= main_x 121)), 59160#(and (<= 122 main_x) (<= main_x 122)), 59161#(and (<= main_x 123) (<= 123 main_x)), 59162#(and (<= main_x 124) (<= 124 main_x)), 59163#(and (<= main_x 125) (<= 125 main_x)), 59164#(and (<= 126 main_x) (<= main_x 126)), 59165#(and (<= main_x 127) (<= 127 main_x)), 59166#(and (<= main_x 128) (<= 128 main_x)), 59167#(and (<= 129 main_x) (<= main_x 129)), 59168#(and (<= main_x 130) (<= 130 main_x)), 59169#(and (<= main_x 131) (<= 131 main_x)), 59170#(and (<= 132 main_x) (<= main_x 132)), 59171#(and (<= main_x 133) (<= 133 main_x)), 59172#(and (<= main_x 134) (<= 134 main_x)), 59173#(and (<= main_x 135) (<= 135 main_x)), 59174#(and (<= main_x 136) (<= 136 main_x)), 59175#(and (<= 137 main_x) (<= main_x 137)), 59176#(and (<= main_x 138) (<= 138 main_x)), 59177#(and (<= main_x 139) (<= 139 main_x)), 59178#(and (<= main_x 140) (<= 140 main_x)), 59179#(and (<= main_x 141) (<= 141 main_x)), 59180#(and (<= 142 main_x) (<= main_x 142)), 59181#(and (<= 143 main_x) (<= main_x 143)), 59182#(and (<= main_x 144) (<= 144 main_x)), 59183#(and (<= 145 main_x) (<= main_x 145)), 59184#(and (<= main_x 146) (<= 146 main_x)), 59185#(and (<= main_x 147) (<= 147 main_x)), 59186#(and (<= 148 main_x) (<= main_x 148)), 59187#(and (<= 149 main_x) (<= main_x 149)), 59188#(or (<= (+ main_x 106) 0) (<= 150 main_x)), 59036#true, 59037#false, 59038#(and (<= main_x 0) (<= 0 main_x)), 59039#(and (<= 1 main_x) (<= main_x 1)), 59040#(and (<= 2 main_x) (<= main_x 2)), 59041#(and (<= 3 main_x) (<= main_x 3)), 59042#(and (<= main_x 4) (<= 4 main_x)), 59043#(and (<= 5 main_x) (<= main_x 5)), 59044#(and (<= 6 main_x) (<= main_x 6)), 59045#(and (<= main_x 7) (<= 7 main_x)), 59046#(and (<= main_x 8) (<= 8 main_x)), 59047#(and (<= 9 main_x) (<= main_x 9)), 59048#(and (<= main_x 10) (<= 10 main_x)), 59049#(and (<= 11 main_x) (<= main_x 11)), 59050#(and (<= 12 main_x) (<= main_x 12)), 59051#(and (<= 13 main_x) (<= main_x 13)), 59052#(and (<= 14 main_x) (<= main_x 14)), 59053#(and (<= 15 main_x) (<= main_x 15)), 59054#(and (<= main_x 16) (<= 16 main_x)), 59055#(and (<= 17 main_x) (<= main_x 17)), 59056#(and (<= main_x 18) (<= 18 main_x)), 59057#(and (<= main_x 19) (<= 19 main_x)), 59058#(and (<= 20 main_x) (<= main_x 20)), 59059#(and (<= 21 main_x) (<= main_x 21)), 59060#(and (<= main_x 22) (<= 22 main_x)), 59061#(and (<= 23 main_x) (<= main_x 23)), 59062#(and (<= main_x 24) (<= 24 main_x)), 59063#(and (<= main_x 25) (<= 25 main_x)), 59064#(and (<= main_x 26) (<= 26 main_x)), 59065#(and (<= main_x 27) (<= 27 main_x)), 59066#(and (<= main_x 28) (<= 28 main_x)), 59067#(and (<= main_x 29) (<= 29 main_x)), 59068#(and (<= 30 main_x) (<= main_x 30)), 59069#(and (<= 31 main_x) (<= main_x 31)), 59070#(and (<= 32 main_x) (<= main_x 32)), 59071#(and (<= main_x 33) (<= 33 main_x)), 59072#(and (<= 34 main_x) (<= main_x 34)), 59073#(and (<= main_x 35) (<= 35 main_x)), 59074#(and (<= main_x 36) (<= 36 main_x)), 59075#(and (<= 37 main_x) (<= main_x 37)), 59076#(and (<= 38 main_x) (<= main_x 38)), 59077#(and (<= 39 main_x) (<= main_x 39)), 59078#(and (<= main_x 40) (<= 40 main_x)), 59079#(and (<= 41 main_x) (<= main_x 41)), 59080#(and (<= 42 main_x) (<= main_x 42)), 59081#(and (<= 43 main_x) (<= main_x 43)), 59082#(and (<= main_x 44) (<= 44 main_x)), 59083#(and (<= 45 main_x) (<= main_x 45)), 59084#(and (<= 46 main_x) (<= main_x 46)), 59085#(and (<= 47 main_x) (<= main_x 47)), 59086#(and (<= 48 main_x) (<= main_x 48)), 59087#(and (<= main_x 49) (<= 49 main_x)), 59088#(and (<= main_x 50) (<= 50 main_x)), 59089#(and (<= main_x 51) (<= 51 main_x)), 59090#(and (<= 52 main_x) (<= main_x 52)), 59091#(and (<= main_x 53) (<= 53 main_x)), 59092#(and (<= 54 main_x) (<= main_x 54)), 59093#(and (<= 55 main_x) (<= main_x 55)), 59094#(and (<= main_x 56) (<= 56 main_x)), 59095#(and (<= main_x 57) (<= 57 main_x)), 59096#(and (<= 58 main_x) (<= main_x 58)), 59097#(and (<= 59 main_x) (<= main_x 59)), 59098#(and (<= main_x 60) (<= 60 main_x)), 59099#(and (<= main_x 61) (<= 61 main_x)), 59100#(and (<= main_x 62) (<= 62 main_x)), 59101#(and (<= 63 main_x) (<= main_x 63)), 59102#(and (<= 64 main_x) (<= main_x 64)), 59103#(and (<= main_x 65) (<= 65 main_x)), 59104#(and (<= main_x 66) (<= 66 main_x)), 59105#(and (<= 67 main_x) (<= main_x 67)), 59106#(and (<= main_x 68) (<= 68 main_x)), 59107#(and (<= 69 main_x) (<= main_x 69)), 59108#(and (<= main_x 70) (<= 70 main_x)), 59109#(and (<= 71 main_x) (<= main_x 71)), 59110#(and (<= main_x 72) (<= 72 main_x)), 59111#(and (<= main_x 73) (<= 73 main_x)), 59112#(and (<= 74 main_x) (<= main_x 74)), 59113#(and (<= main_x 75) (<= 75 main_x)), 59114#(and (<= main_x 76) (<= 76 main_x)), 59115#(and (<= 77 main_x) (<= main_x 77)), 59116#(and (<= 78 main_x) (<= main_x 78)), 59117#(and (<= 79 main_x) (<= main_x 79)), 59118#(and (<= main_x 80) (<= 80 main_x)), 59119#(and (<= 81 main_x) (<= main_x 81)), 59120#(and (<= 82 main_x) (<= main_x 82)), 59121#(and (<= 83 main_x) (<= main_x 83)), 59122#(and (<= main_x 84) (<= 84 main_x)), 59123#(and (<= 85 main_x) (<= main_x 85)), 59124#(and (<= 86 main_x) (<= main_x 86)), 59125#(and (<= 87 main_x) (<= main_x 87)), 59126#(and (<= 88 main_x) (<= main_x 88)), 59127#(and (<= 89 main_x) (<= main_x 89)), 59128#(and (<= 90 main_x) (<= main_x 90)), 59129#(and (<= main_x 91) (<= 91 main_x)), 59130#(and (<= main_x 92) (<= 92 main_x)), 59131#(and (<= 93 main_x) (<= main_x 93)), 59132#(and (<= 94 main_x) (<= main_x 94)), 59133#(and (<= 95 main_x) (<= main_x 95)), 59134#(and (<= 96 main_x) (<= main_x 96)), 59135#(and (<= main_x 97) (<= 97 main_x))] [2018-07-23 13:53:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 11325 backedges. 0 proven. 11325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,974 INFO L450 AbstractCegarLoop]: Interpolant automaton has 153 states [2018-07-23 13:53:37,974 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2018-07-23 13:53:37,975 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=22953, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:53:37,975 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 153 states. [2018-07-23 13:53:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:39,549 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-07-23 13:53:39,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-07-23 13:53:39,549 INFO L78 Accepts]: Start accepts. Automaton has 153 states. Word has length 152 [2018-07-23 13:53:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:39,550 INFO L225 Difference]: With dead ends: 155 [2018-07-23 13:53:39,550 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:53:39,551 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=303, Invalid=22953, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:53:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:53:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:53:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:53:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-07-23 13:53:39,556 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 152 [2018-07-23 13:53:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:39,557 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-07-23 13:53:39,557 INFO L472 AbstractCegarLoop]: Interpolant automaton has 153 states. [2018-07-23 13:53:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-07-23 13:53:39,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:53:39,557 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:39,557 INFO L357 BasicCegarLoop]: trace histogram [151, 1, 1] [2018-07-23 13:53:39,557 INFO L414 AbstractCegarLoop]: === Iteration 152 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:39,558 INFO L82 PathProgramCache]: Analyzing trace with hash 540524696, now seen corresponding path program 151 times [2018-07-23 13:53:39,558 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:40,738 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:40,738 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2018-07-23 13:53:40,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:40,739 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 13:53:40,739 INFO L185 omatonBuilderFactory]: Interpolants [59904#(and (<= 95 main_x) (<= main_x 95)), 59905#(and (<= 96 main_x) (<= main_x 96)), 59906#(and (<= main_x 97) (<= 97 main_x)), 59907#(and (<= main_x 98) (<= 98 main_x)), 59908#(and (<= 99 main_x) (<= main_x 99)), 59909#(and (<= main_x 100) (<= 100 main_x)), 59910#(and (<= 101 main_x) (<= main_x 101)), 59911#(and (<= main_x 102) (<= 102 main_x)), 59912#(and (<= main_x 103) (<= 103 main_x)), 59913#(and (<= main_x 104) (<= 104 main_x)), 59914#(and (<= main_x 105) (<= 105 main_x)), 59915#(and (<= 106 main_x) (<= main_x 106)), 59916#(and (<= main_x 107) (<= 107 main_x)), 59917#(and (<= 108 main_x) (<= main_x 108)), 59918#(and (<= 109 main_x) (<= main_x 109)), 59919#(and (<= main_x 110) (<= 110 main_x)), 59920#(and (<= main_x 111) (<= 111 main_x)), 59921#(and (<= main_x 112) (<= 112 main_x)), 59922#(and (<= main_x 113) (<= 113 main_x)), 59923#(and (<= 114 main_x) (<= main_x 114)), 59924#(and (<= 115 main_x) (<= main_x 115)), 59925#(and (<= 116 main_x) (<= main_x 116)), 59926#(and (<= 117 main_x) (<= main_x 117)), 59927#(and (<= 118 main_x) (<= main_x 118)), 59928#(and (<= main_x 119) (<= 119 main_x)), 59929#(and (<= main_x 120) (<= 120 main_x)), 59930#(and (<= 121 main_x) (<= main_x 121)), 59931#(and (<= 122 main_x) (<= main_x 122)), 59932#(and (<= main_x 123) (<= 123 main_x)), 59933#(and (<= main_x 124) (<= 124 main_x)), 59934#(and (<= main_x 125) (<= 125 main_x)), 59935#(and (<= 126 main_x) (<= main_x 126)), 59936#(and (<= main_x 127) (<= 127 main_x)), 59937#(and (<= main_x 128) (<= 128 main_x)), 59938#(and (<= 129 main_x) (<= main_x 129)), 59939#(and (<= main_x 130) (<= 130 main_x)), 59940#(and (<= main_x 131) (<= 131 main_x)), 59941#(and (<= 132 main_x) (<= main_x 132)), 59942#(and (<= main_x 133) (<= 133 main_x)), 59943#(and (<= main_x 134) (<= 134 main_x)), 59944#(and (<= main_x 135) (<= 135 main_x)), 59945#(and (<= main_x 136) (<= 136 main_x)), 59946#(and (<= 137 main_x) (<= main_x 137)), 59947#(and (<= main_x 138) (<= 138 main_x)), 59948#(and (<= main_x 139) (<= 139 main_x)), 59949#(and (<= main_x 140) (<= 140 main_x)), 59950#(and (<= main_x 141) (<= 141 main_x)), 59951#(and (<= 142 main_x) (<= main_x 142)), 59952#(and (<= 143 main_x) (<= main_x 143)), 59953#(and (<= main_x 144) (<= 144 main_x)), 59954#(and (<= 145 main_x) (<= main_x 145)), 59955#(and (<= main_x 146) (<= 146 main_x)), 59956#(and (<= main_x 147) (<= 147 main_x)), 59957#(and (<= 148 main_x) (<= main_x 148)), 59958#(and (<= 149 main_x) (<= main_x 149)), 59959#(and (<= 150 main_x) (<= main_x 150)), 59960#(or (<= 151 main_x) (<= (+ main_x 105) 0)), 59807#true, 59808#false, 59809#(and (<= main_x 0) (<= 0 main_x)), 59810#(and (<= 1 main_x) (<= main_x 1)), 59811#(and (<= 2 main_x) (<= main_x 2)), 59812#(and (<= 3 main_x) (<= main_x 3)), 59813#(and (<= main_x 4) (<= 4 main_x)), 59814#(and (<= 5 main_x) (<= main_x 5)), 59815#(and (<= 6 main_x) (<= main_x 6)), 59816#(and (<= main_x 7) (<= 7 main_x)), 59817#(and (<= main_x 8) (<= 8 main_x)), 59818#(and (<= 9 main_x) (<= main_x 9)), 59819#(and (<= main_x 10) (<= 10 main_x)), 59820#(and (<= 11 main_x) (<= main_x 11)), 59821#(and (<= 12 main_x) (<= main_x 12)), 59822#(and (<= 13 main_x) (<= main_x 13)), 59823#(and (<= 14 main_x) (<= main_x 14)), 59824#(and (<= 15 main_x) (<= main_x 15)), 59825#(and (<= main_x 16) (<= 16 main_x)), 59826#(and (<= 17 main_x) (<= main_x 17)), 59827#(and (<= main_x 18) (<= 18 main_x)), 59828#(and (<= main_x 19) (<= 19 main_x)), 59829#(and (<= 20 main_x) (<= main_x 20)), 59830#(and (<= 21 main_x) (<= main_x 21)), 59831#(and (<= main_x 22) (<= 22 main_x)), 59832#(and (<= 23 main_x) (<= main_x 23)), 59833#(and (<= main_x 24) (<= 24 main_x)), 59834#(and (<= main_x 25) (<= 25 main_x)), 59835#(and (<= main_x 26) (<= 26 main_x)), 59836#(and (<= main_x 27) (<= 27 main_x)), 59837#(and (<= main_x 28) (<= 28 main_x)), 59838#(and (<= main_x 29) (<= 29 main_x)), 59839#(and (<= 30 main_x) (<= main_x 30)), 59840#(and (<= 31 main_x) (<= main_x 31)), 59841#(and (<= 32 main_x) (<= main_x 32)), 59842#(and (<= main_x 33) (<= 33 main_x)), 59843#(and (<= 34 main_x) (<= main_x 34)), 59844#(and (<= main_x 35) (<= 35 main_x)), 59845#(and (<= main_x 36) (<= 36 main_x)), 59846#(and (<= 37 main_x) (<= main_x 37)), 59847#(and (<= 38 main_x) (<= main_x 38)), 59848#(and (<= 39 main_x) (<= main_x 39)), 59849#(and (<= main_x 40) (<= 40 main_x)), 59850#(and (<= 41 main_x) (<= main_x 41)), 59851#(and (<= 42 main_x) (<= main_x 42)), 59852#(and (<= 43 main_x) (<= main_x 43)), 59853#(and (<= main_x 44) (<= 44 main_x)), 59854#(and (<= 45 main_x) (<= main_x 45)), 59855#(and (<= 46 main_x) (<= main_x 46)), 59856#(and (<= 47 main_x) (<= main_x 47)), 59857#(and (<= 48 main_x) (<= main_x 48)), 59858#(and (<= main_x 49) (<= 49 main_x)), 59859#(and (<= main_x 50) (<= 50 main_x)), 59860#(and (<= main_x 51) (<= 51 main_x)), 59861#(and (<= 52 main_x) (<= main_x 52)), 59862#(and (<= main_x 53) (<= 53 main_x)), 59863#(and (<= 54 main_x) (<= main_x 54)), 59864#(and (<= 55 main_x) (<= main_x 55)), 59865#(and (<= main_x 56) (<= 56 main_x)), 59866#(and (<= main_x 57) (<= 57 main_x)), 59867#(and (<= 58 main_x) (<= main_x 58)), 59868#(and (<= 59 main_x) (<= main_x 59)), 59869#(and (<= main_x 60) (<= 60 main_x)), 59870#(and (<= main_x 61) (<= 61 main_x)), 59871#(and (<= main_x 62) (<= 62 main_x)), 59872#(and (<= 63 main_x) (<= main_x 63)), 59873#(and (<= 64 main_x) (<= main_x 64)), 59874#(and (<= main_x 65) (<= 65 main_x)), 59875#(and (<= main_x 66) (<= 66 main_x)), 59876#(and (<= 67 main_x) (<= main_x 67)), 59877#(and (<= main_x 68) (<= 68 main_x)), 59878#(and (<= 69 main_x) (<= main_x 69)), 59879#(and (<= main_x 70) (<= 70 main_x)), 59880#(and (<= 71 main_x) (<= main_x 71)), 59881#(and (<= main_x 72) (<= 72 main_x)), 59882#(and (<= main_x 73) (<= 73 main_x)), 59883#(and (<= 74 main_x) (<= main_x 74)), 59884#(and (<= main_x 75) (<= 75 main_x)), 59885#(and (<= main_x 76) (<= 76 main_x)), 59886#(and (<= 77 main_x) (<= main_x 77)), 59887#(and (<= 78 main_x) (<= main_x 78)), 59888#(and (<= 79 main_x) (<= main_x 79)), 59889#(and (<= main_x 80) (<= 80 main_x)), 59890#(and (<= 81 main_x) (<= main_x 81)), 59891#(and (<= 82 main_x) (<= main_x 82)), 59892#(and (<= 83 main_x) (<= main_x 83)), 59893#(and (<= main_x 84) (<= 84 main_x)), 59894#(and (<= 85 main_x) (<= main_x 85)), 59895#(and (<= 86 main_x) (<= main_x 86)), 59896#(and (<= 87 main_x) (<= main_x 87)), 59897#(and (<= 88 main_x) (<= main_x 88)), 59898#(and (<= 89 main_x) (<= main_x 89)), 59899#(and (<= 90 main_x) (<= main_x 90)), 59900#(and (<= main_x 91) (<= 91 main_x)), 59901#(and (<= main_x 92) (<= 92 main_x)), 59902#(and (<= 93 main_x) (<= main_x 93)), 59903#(and (<= 94 main_x) (<= main_x 94))] [2018-07-23 13:53:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 11476 backedges. 0 proven. 11476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:40,740 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:53:40,740 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:53:40,741 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=23257, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:53:40,741 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 154 states. [2018-07-23 13:53:42,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:42,383 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2018-07-23 13:53:42,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:53:42,384 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 153 [2018-07-23 13:53:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:42,384 INFO L225 Difference]: With dead ends: 156 [2018-07-23 13:53:42,384 INFO L226 Difference]: Without dead ends: 155 [2018-07-23 13:53:42,385 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=305, Invalid=23257, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:53:42,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-07-23 13:53:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-07-23 13:53:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-07-23 13:53:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-07-23 13:53:42,390 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 153 [2018-07-23 13:53:42,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:42,391 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-07-23 13:53:42,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:53:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-07-23 13:53:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-07-23 13:53:42,391 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:42,391 INFO L357 BasicCegarLoop]: trace histogram [152, 1, 1] [2018-07-23 13:53:42,391 INFO L414 AbstractCegarLoop]: === Iteration 153 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:42,391 INFO L82 PathProgramCache]: Analyzing trace with hash -423603373, now seen corresponding path program 152 times [2018-07-23 13:53:42,391 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,589 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:43,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:53:43,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:43,590 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 13:53:43,590 INFO L185 omatonBuilderFactory]: Interpolants [60672#(and (<= 87 main_x) (<= main_x 87)), 60673#(and (<= 88 main_x) (<= main_x 88)), 60674#(and (<= 89 main_x) (<= main_x 89)), 60675#(and (<= 90 main_x) (<= main_x 90)), 60676#(and (<= main_x 91) (<= 91 main_x)), 60677#(and (<= main_x 92) (<= 92 main_x)), 60678#(and (<= 93 main_x) (<= main_x 93)), 60679#(and (<= 94 main_x) (<= main_x 94)), 60680#(and (<= 95 main_x) (<= main_x 95)), 60681#(and (<= 96 main_x) (<= main_x 96)), 60682#(and (<= main_x 97) (<= 97 main_x)), 60683#(and (<= main_x 98) (<= 98 main_x)), 60684#(and (<= 99 main_x) (<= main_x 99)), 60685#(and (<= main_x 100) (<= 100 main_x)), 60686#(and (<= 101 main_x) (<= main_x 101)), 60687#(and (<= main_x 102) (<= 102 main_x)), 60688#(and (<= main_x 103) (<= 103 main_x)), 60689#(and (<= main_x 104) (<= 104 main_x)), 60690#(and (<= main_x 105) (<= 105 main_x)), 60691#(and (<= 106 main_x) (<= main_x 106)), 60692#(and (<= main_x 107) (<= 107 main_x)), 60693#(and (<= 108 main_x) (<= main_x 108)), 60694#(and (<= 109 main_x) (<= main_x 109)), 60695#(and (<= main_x 110) (<= 110 main_x)), 60696#(and (<= main_x 111) (<= 111 main_x)), 60697#(and (<= main_x 112) (<= 112 main_x)), 60698#(and (<= main_x 113) (<= 113 main_x)), 60699#(and (<= 114 main_x) (<= main_x 114)), 60700#(and (<= 115 main_x) (<= main_x 115)), 60701#(and (<= 116 main_x) (<= main_x 116)), 60702#(and (<= 117 main_x) (<= main_x 117)), 60703#(and (<= 118 main_x) (<= main_x 118)), 60704#(and (<= main_x 119) (<= 119 main_x)), 60705#(and (<= main_x 120) (<= 120 main_x)), 60706#(and (<= 121 main_x) (<= main_x 121)), 60707#(and (<= 122 main_x) (<= main_x 122)), 60708#(and (<= main_x 123) (<= 123 main_x)), 60709#(and (<= main_x 124) (<= 124 main_x)), 60710#(and (<= main_x 125) (<= 125 main_x)), 60711#(and (<= 126 main_x) (<= main_x 126)), 60712#(and (<= main_x 127) (<= 127 main_x)), 60713#(and (<= main_x 128) (<= 128 main_x)), 60714#(and (<= 129 main_x) (<= main_x 129)), 60715#(and (<= main_x 130) (<= 130 main_x)), 60716#(and (<= main_x 131) (<= 131 main_x)), 60717#(and (<= 132 main_x) (<= main_x 132)), 60718#(and (<= main_x 133) (<= 133 main_x)), 60719#(and (<= main_x 134) (<= 134 main_x)), 60720#(and (<= main_x 135) (<= 135 main_x)), 60721#(and (<= main_x 136) (<= 136 main_x)), 60722#(and (<= 137 main_x) (<= main_x 137)), 60723#(and (<= main_x 138) (<= 138 main_x)), 60724#(and (<= main_x 139) (<= 139 main_x)), 60725#(and (<= main_x 140) (<= 140 main_x)), 60726#(and (<= main_x 141) (<= 141 main_x)), 60727#(and (<= 142 main_x) (<= main_x 142)), 60728#(and (<= 143 main_x) (<= main_x 143)), 60729#(and (<= main_x 144) (<= 144 main_x)), 60730#(and (<= 145 main_x) (<= main_x 145)), 60731#(and (<= main_x 146) (<= 146 main_x)), 60732#(and (<= main_x 147) (<= 147 main_x)), 60733#(and (<= 148 main_x) (<= main_x 148)), 60734#(and (<= 149 main_x) (<= main_x 149)), 60735#(and (<= 150 main_x) (<= main_x 150)), 60736#(and (<= 151 main_x) (<= main_x 151)), 60737#(or (<= (+ main_x 104) 0) (<= 152 main_x)), 60583#true, 60584#false, 60585#(and (<= main_x 0) (<= 0 main_x)), 60586#(and (<= 1 main_x) (<= main_x 1)), 60587#(and (<= 2 main_x) (<= main_x 2)), 60588#(and (<= 3 main_x) (<= main_x 3)), 60589#(and (<= main_x 4) (<= 4 main_x)), 60590#(and (<= 5 main_x) (<= main_x 5)), 60591#(and (<= 6 main_x) (<= main_x 6)), 60592#(and (<= main_x 7) (<= 7 main_x)), 60593#(and (<= main_x 8) (<= 8 main_x)), 60594#(and (<= 9 main_x) (<= main_x 9)), 60595#(and (<= main_x 10) (<= 10 main_x)), 60596#(and (<= 11 main_x) (<= main_x 11)), 60597#(and (<= 12 main_x) (<= main_x 12)), 60598#(and (<= 13 main_x) (<= main_x 13)), 60599#(and (<= 14 main_x) (<= main_x 14)), 60600#(and (<= 15 main_x) (<= main_x 15)), 60601#(and (<= main_x 16) (<= 16 main_x)), 60602#(and (<= 17 main_x) (<= main_x 17)), 60603#(and (<= main_x 18) (<= 18 main_x)), 60604#(and (<= main_x 19) (<= 19 main_x)), 60605#(and (<= 20 main_x) (<= main_x 20)), 60606#(and (<= 21 main_x) (<= main_x 21)), 60607#(and (<= main_x 22) (<= 22 main_x)), 60608#(and (<= 23 main_x) (<= main_x 23)), 60609#(and (<= main_x 24) (<= 24 main_x)), 60610#(and (<= main_x 25) (<= 25 main_x)), 60611#(and (<= main_x 26) (<= 26 main_x)), 60612#(and (<= main_x 27) (<= 27 main_x)), 60613#(and (<= main_x 28) (<= 28 main_x)), 60614#(and (<= main_x 29) (<= 29 main_x)), 60615#(and (<= 30 main_x) (<= main_x 30)), 60616#(and (<= 31 main_x) (<= main_x 31)), 60617#(and (<= 32 main_x) (<= main_x 32)), 60618#(and (<= main_x 33) (<= 33 main_x)), 60619#(and (<= 34 main_x) (<= main_x 34)), 60620#(and (<= main_x 35) (<= 35 main_x)), 60621#(and (<= main_x 36) (<= 36 main_x)), 60622#(and (<= 37 main_x) (<= main_x 37)), 60623#(and (<= 38 main_x) (<= main_x 38)), 60624#(and (<= 39 main_x) (<= main_x 39)), 60625#(and (<= main_x 40) (<= 40 main_x)), 60626#(and (<= 41 main_x) (<= main_x 41)), 60627#(and (<= 42 main_x) (<= main_x 42)), 60628#(and (<= 43 main_x) (<= main_x 43)), 60629#(and (<= main_x 44) (<= 44 main_x)), 60630#(and (<= 45 main_x) (<= main_x 45)), 60631#(and (<= 46 main_x) (<= main_x 46)), 60632#(and (<= 47 main_x) (<= main_x 47)), 60633#(and (<= 48 main_x) (<= main_x 48)), 60634#(and (<= main_x 49) (<= 49 main_x)), 60635#(and (<= main_x 50) (<= 50 main_x)), 60636#(and (<= main_x 51) (<= 51 main_x)), 60637#(and (<= 52 main_x) (<= main_x 52)), 60638#(and (<= main_x 53) (<= 53 main_x)), 60639#(and (<= 54 main_x) (<= main_x 54)), 60640#(and (<= 55 main_x) (<= main_x 55)), 60641#(and (<= main_x 56) (<= 56 main_x)), 60642#(and (<= main_x 57) (<= 57 main_x)), 60643#(and (<= 58 main_x) (<= main_x 58)), 60644#(and (<= 59 main_x) (<= main_x 59)), 60645#(and (<= main_x 60) (<= 60 main_x)), 60646#(and (<= main_x 61) (<= 61 main_x)), 60647#(and (<= main_x 62) (<= 62 main_x)), 60648#(and (<= 63 main_x) (<= main_x 63)), 60649#(and (<= 64 main_x) (<= main_x 64)), 60650#(and (<= main_x 65) (<= 65 main_x)), 60651#(and (<= main_x 66) (<= 66 main_x)), 60652#(and (<= 67 main_x) (<= main_x 67)), 60653#(and (<= main_x 68) (<= 68 main_x)), 60654#(and (<= 69 main_x) (<= main_x 69)), 60655#(and (<= main_x 70) (<= 70 main_x)), 60656#(and (<= 71 main_x) (<= main_x 71)), 60657#(and (<= main_x 72) (<= 72 main_x)), 60658#(and (<= main_x 73) (<= 73 main_x)), 60659#(and (<= 74 main_x) (<= main_x 74)), 60660#(and (<= main_x 75) (<= 75 main_x)), 60661#(and (<= main_x 76) (<= 76 main_x)), 60662#(and (<= 77 main_x) (<= main_x 77)), 60663#(and (<= 78 main_x) (<= main_x 78)), 60664#(and (<= 79 main_x) (<= main_x 79)), 60665#(and (<= main_x 80) (<= 80 main_x)), 60666#(and (<= 81 main_x) (<= main_x 81)), 60667#(and (<= 82 main_x) (<= main_x 82)), 60668#(and (<= 83 main_x) (<= main_x 83)), 60669#(and (<= main_x 84) (<= 84 main_x)), 60670#(and (<= 85 main_x) (<= main_x 85)), 60671#(and (<= 86 main_x) (<= main_x 86))] [2018-07-23 13:53:43,591 INFO L134 CoverageAnalysis]: Checked inductivity of 11628 backedges. 0 proven. 11628 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,591 INFO L450 AbstractCegarLoop]: Interpolant automaton has 155 states [2018-07-23 13:53:43,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2018-07-23 13:53:43,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=23563, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:53:43,592 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 155 states. [2018-07-23 13:53:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:45,230 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-07-23 13:53:45,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2018-07-23 13:53:45,230 INFO L78 Accepts]: Start accepts. Automaton has 155 states. Word has length 154 [2018-07-23 13:53:45,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:45,231 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:53:45,231 INFO L226 Difference]: Without dead ends: 156 [2018-07-23 13:53:45,232 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=307, Invalid=23563, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:53:45,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-07-23 13:53:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-07-23 13:53:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:53:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-07-23 13:53:45,238 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 154 [2018-07-23 13:53:45,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:45,238 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-07-23 13:53:45,238 INFO L472 AbstractCegarLoop]: Interpolant automaton has 155 states. [2018-07-23 13:53:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-07-23 13:53:45,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:53:45,238 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:45,239 INFO L357 BasicCegarLoop]: trace histogram [153, 1, 1] [2018-07-23 13:53:45,239 INFO L414 AbstractCegarLoop]: === Iteration 154 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:45,239 INFO L82 PathProgramCache]: Analyzing trace with hash -246802440, now seen corresponding path program 153 times [2018-07-23 13:53:45,239 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:46,509 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,509 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:46,509 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-07-23 13:53:46,509 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:46,509 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 13:53:46,510 INFO L185 omatonBuilderFactory]: Interpolants [61440#(and (<= 74 main_x) (<= main_x 74)), 61441#(and (<= main_x 75) (<= 75 main_x)), 61442#(and (<= main_x 76) (<= 76 main_x)), 61443#(and (<= 77 main_x) (<= main_x 77)), 61444#(and (<= 78 main_x) (<= main_x 78)), 61445#(and (<= 79 main_x) (<= main_x 79)), 61446#(and (<= main_x 80) (<= 80 main_x)), 61447#(and (<= 81 main_x) (<= main_x 81)), 61448#(and (<= 82 main_x) (<= main_x 82)), 61449#(and (<= 83 main_x) (<= main_x 83)), 61450#(and (<= main_x 84) (<= 84 main_x)), 61451#(and (<= 85 main_x) (<= main_x 85)), 61452#(and (<= 86 main_x) (<= main_x 86)), 61453#(and (<= 87 main_x) (<= main_x 87)), 61454#(and (<= 88 main_x) (<= main_x 88)), 61455#(and (<= 89 main_x) (<= main_x 89)), 61456#(and (<= 90 main_x) (<= main_x 90)), 61457#(and (<= main_x 91) (<= 91 main_x)), 61458#(and (<= main_x 92) (<= 92 main_x)), 61459#(and (<= 93 main_x) (<= main_x 93)), 61460#(and (<= 94 main_x) (<= main_x 94)), 61461#(and (<= 95 main_x) (<= main_x 95)), 61462#(and (<= 96 main_x) (<= main_x 96)), 61463#(and (<= main_x 97) (<= 97 main_x)), 61464#(and (<= main_x 98) (<= 98 main_x)), 61465#(and (<= 99 main_x) (<= main_x 99)), 61466#(and (<= main_x 100) (<= 100 main_x)), 61467#(and (<= 101 main_x) (<= main_x 101)), 61468#(and (<= main_x 102) (<= 102 main_x)), 61469#(and (<= main_x 103) (<= 103 main_x)), 61470#(and (<= main_x 104) (<= 104 main_x)), 61471#(and (<= main_x 105) (<= 105 main_x)), 61472#(and (<= 106 main_x) (<= main_x 106)), 61473#(and (<= main_x 107) (<= 107 main_x)), 61474#(and (<= 108 main_x) (<= main_x 108)), 61475#(and (<= 109 main_x) (<= main_x 109)), 61476#(and (<= main_x 110) (<= 110 main_x)), 61477#(and (<= main_x 111) (<= 111 main_x)), 61478#(and (<= main_x 112) (<= 112 main_x)), 61479#(and (<= main_x 113) (<= 113 main_x)), 61480#(and (<= 114 main_x) (<= main_x 114)), 61481#(and (<= 115 main_x) (<= main_x 115)), 61482#(and (<= 116 main_x) (<= main_x 116)), 61483#(and (<= 117 main_x) (<= main_x 117)), 61484#(and (<= 118 main_x) (<= main_x 118)), 61485#(and (<= main_x 119) (<= 119 main_x)), 61486#(and (<= main_x 120) (<= 120 main_x)), 61487#(and (<= 121 main_x) (<= main_x 121)), 61488#(and (<= 122 main_x) (<= main_x 122)), 61489#(and (<= main_x 123) (<= 123 main_x)), 61490#(and (<= main_x 124) (<= 124 main_x)), 61491#(and (<= main_x 125) (<= 125 main_x)), 61492#(and (<= 126 main_x) (<= main_x 126)), 61493#(and (<= main_x 127) (<= 127 main_x)), 61494#(and (<= main_x 128) (<= 128 main_x)), 61495#(and (<= 129 main_x) (<= main_x 129)), 61496#(and (<= main_x 130) (<= 130 main_x)), 61497#(and (<= main_x 131) (<= 131 main_x)), 61498#(and (<= 132 main_x) (<= main_x 132)), 61499#(and (<= main_x 133) (<= 133 main_x)), 61500#(and (<= main_x 134) (<= 134 main_x)), 61501#(and (<= main_x 135) (<= 135 main_x)), 61502#(and (<= main_x 136) (<= 136 main_x)), 61503#(and (<= 137 main_x) (<= main_x 137)), 61504#(and (<= main_x 138) (<= 138 main_x)), 61505#(and (<= main_x 139) (<= 139 main_x)), 61506#(and (<= main_x 140) (<= 140 main_x)), 61507#(and (<= main_x 141) (<= 141 main_x)), 61508#(and (<= 142 main_x) (<= main_x 142)), 61509#(and (<= 143 main_x) (<= main_x 143)), 61510#(and (<= main_x 144) (<= 144 main_x)), 61511#(and (<= 145 main_x) (<= main_x 145)), 61512#(and (<= main_x 146) (<= 146 main_x)), 61513#(and (<= main_x 147) (<= 147 main_x)), 61514#(and (<= 148 main_x) (<= main_x 148)), 61515#(and (<= 149 main_x) (<= main_x 149)), 61516#(and (<= 150 main_x) (<= main_x 150)), 61517#(and (<= 151 main_x) (<= main_x 151)), 61518#(and (<= 152 main_x) (<= main_x 152)), 61519#(or (<= (+ main_x 103) 0) (<= 153 main_x)), 61364#true, 61365#false, 61366#(and (<= main_x 0) (<= 0 main_x)), 61367#(and (<= 1 main_x) (<= main_x 1)), 61368#(and (<= 2 main_x) (<= main_x 2)), 61369#(and (<= 3 main_x) (<= main_x 3)), 61370#(and (<= main_x 4) (<= 4 main_x)), 61371#(and (<= 5 main_x) (<= main_x 5)), 61372#(and (<= 6 main_x) (<= main_x 6)), 61373#(and (<= main_x 7) (<= 7 main_x)), 61374#(and (<= main_x 8) (<= 8 main_x)), 61375#(and (<= 9 main_x) (<= main_x 9)), 61376#(and (<= main_x 10) (<= 10 main_x)), 61377#(and (<= 11 main_x) (<= main_x 11)), 61378#(and (<= 12 main_x) (<= main_x 12)), 61379#(and (<= 13 main_x) (<= main_x 13)), 61380#(and (<= 14 main_x) (<= main_x 14)), 61381#(and (<= 15 main_x) (<= main_x 15)), 61382#(and (<= main_x 16) (<= 16 main_x)), 61383#(and (<= 17 main_x) (<= main_x 17)), 61384#(and (<= main_x 18) (<= 18 main_x)), 61385#(and (<= main_x 19) (<= 19 main_x)), 61386#(and (<= 20 main_x) (<= main_x 20)), 61387#(and (<= 21 main_x) (<= main_x 21)), 61388#(and (<= main_x 22) (<= 22 main_x)), 61389#(and (<= 23 main_x) (<= main_x 23)), 61390#(and (<= main_x 24) (<= 24 main_x)), 61391#(and (<= main_x 25) (<= 25 main_x)), 61392#(and (<= main_x 26) (<= 26 main_x)), 61393#(and (<= main_x 27) (<= 27 main_x)), 61394#(and (<= main_x 28) (<= 28 main_x)), 61395#(and (<= main_x 29) (<= 29 main_x)), 61396#(and (<= 30 main_x) (<= main_x 30)), 61397#(and (<= 31 main_x) (<= main_x 31)), 61398#(and (<= 32 main_x) (<= main_x 32)), 61399#(and (<= main_x 33) (<= 33 main_x)), 61400#(and (<= 34 main_x) (<= main_x 34)), 61401#(and (<= main_x 35) (<= 35 main_x)), 61402#(and (<= main_x 36) (<= 36 main_x)), 61403#(and (<= 37 main_x) (<= main_x 37)), 61404#(and (<= 38 main_x) (<= main_x 38)), 61405#(and (<= 39 main_x) (<= main_x 39)), 61406#(and (<= main_x 40) (<= 40 main_x)), 61407#(and (<= 41 main_x) (<= main_x 41)), 61408#(and (<= 42 main_x) (<= main_x 42)), 61409#(and (<= 43 main_x) (<= main_x 43)), 61410#(and (<= main_x 44) (<= 44 main_x)), 61411#(and (<= 45 main_x) (<= main_x 45)), 61412#(and (<= 46 main_x) (<= main_x 46)), 61413#(and (<= 47 main_x) (<= main_x 47)), 61414#(and (<= 48 main_x) (<= main_x 48)), 61415#(and (<= main_x 49) (<= 49 main_x)), 61416#(and (<= main_x 50) (<= 50 main_x)), 61417#(and (<= main_x 51) (<= 51 main_x)), 61418#(and (<= 52 main_x) (<= main_x 52)), 61419#(and (<= main_x 53) (<= 53 main_x)), 61420#(and (<= 54 main_x) (<= main_x 54)), 61421#(and (<= 55 main_x) (<= main_x 55)), 61422#(and (<= main_x 56) (<= 56 main_x)), 61423#(and (<= main_x 57) (<= 57 main_x)), 61424#(and (<= 58 main_x) (<= main_x 58)), 61425#(and (<= 59 main_x) (<= main_x 59)), 61426#(and (<= main_x 60) (<= 60 main_x)), 61427#(and (<= main_x 61) (<= 61 main_x)), 61428#(and (<= main_x 62) (<= 62 main_x)), 61429#(and (<= 63 main_x) (<= main_x 63)), 61430#(and (<= 64 main_x) (<= main_x 64)), 61431#(and (<= main_x 65) (<= 65 main_x)), 61432#(and (<= main_x 66) (<= 66 main_x)), 61433#(and (<= 67 main_x) (<= main_x 67)), 61434#(and (<= main_x 68) (<= 68 main_x)), 61435#(and (<= 69 main_x) (<= main_x 69)), 61436#(and (<= main_x 70) (<= 70 main_x)), 61437#(and (<= 71 main_x) (<= main_x 71)), 61438#(and (<= main_x 72) (<= 72 main_x)), 61439#(and (<= main_x 73) (<= 73 main_x))] [2018-07-23 13:53:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 11781 backedges. 0 proven. 11781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,510 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:53:46,511 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:53:46,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=23871, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:53:46,511 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 156 states. [2018-07-23 13:53:48,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:48,148 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2018-07-23 13:53:48,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:53:48,148 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 155 [2018-07-23 13:53:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:48,149 INFO L225 Difference]: With dead ends: 158 [2018-07-23 13:53:48,149 INFO L226 Difference]: Without dead ends: 157 [2018-07-23 13:53:48,150 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=309, Invalid=23871, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:53:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2018-07-23 13:53:48,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-07-23 13:53:48,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-07-23 13:53:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2018-07-23 13:53:48,158 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 155 [2018-07-23 13:53:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:48,158 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 157 transitions. [2018-07-23 13:53:48,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:53:48,158 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 157 transitions. [2018-07-23 13:53:48,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 13:53:48,159 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:48,159 INFO L357 BasicCegarLoop]: trace histogram [154, 1, 1] [2018-07-23 13:53:48,159 INFO L414 AbstractCegarLoop]: === Iteration 155 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:48,159 INFO L82 PathProgramCache]: Analyzing trace with hash 939059187, now seen corresponding path program 154 times [2018-07-23 13:53:48,159 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,406 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:49,406 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:53:49,406 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:49,406 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 13:53:49,407 INFO L185 omatonBuilderFactory]: Interpolants [62208#(and (<= main_x 56) (<= 56 main_x)), 62209#(and (<= main_x 57) (<= 57 main_x)), 62210#(and (<= 58 main_x) (<= main_x 58)), 62211#(and (<= 59 main_x) (<= main_x 59)), 62212#(and (<= main_x 60) (<= 60 main_x)), 62213#(and (<= main_x 61) (<= 61 main_x)), 62214#(and (<= main_x 62) (<= 62 main_x)), 62215#(and (<= 63 main_x) (<= main_x 63)), 62216#(and (<= 64 main_x) (<= main_x 64)), 62217#(and (<= main_x 65) (<= 65 main_x)), 62218#(and (<= main_x 66) (<= 66 main_x)), 62219#(and (<= 67 main_x) (<= main_x 67)), 62220#(and (<= main_x 68) (<= 68 main_x)), 62221#(and (<= 69 main_x) (<= main_x 69)), 62222#(and (<= main_x 70) (<= 70 main_x)), 62223#(and (<= 71 main_x) (<= main_x 71)), 62224#(and (<= main_x 72) (<= 72 main_x)), 62225#(and (<= main_x 73) (<= 73 main_x)), 62226#(and (<= 74 main_x) (<= main_x 74)), 62227#(and (<= main_x 75) (<= 75 main_x)), 62228#(and (<= main_x 76) (<= 76 main_x)), 62229#(and (<= 77 main_x) (<= main_x 77)), 62230#(and (<= 78 main_x) (<= main_x 78)), 62231#(and (<= 79 main_x) (<= main_x 79)), 62232#(and (<= main_x 80) (<= 80 main_x)), 62233#(and (<= 81 main_x) (<= main_x 81)), 62234#(and (<= 82 main_x) (<= main_x 82)), 62235#(and (<= 83 main_x) (<= main_x 83)), 62236#(and (<= main_x 84) (<= 84 main_x)), 62237#(and (<= 85 main_x) (<= main_x 85)), 62238#(and (<= 86 main_x) (<= main_x 86)), 62239#(and (<= 87 main_x) (<= main_x 87)), 62240#(and (<= 88 main_x) (<= main_x 88)), 62241#(and (<= 89 main_x) (<= main_x 89)), 62242#(and (<= 90 main_x) (<= main_x 90)), 62243#(and (<= main_x 91) (<= 91 main_x)), 62244#(and (<= main_x 92) (<= 92 main_x)), 62245#(and (<= 93 main_x) (<= main_x 93)), 62246#(and (<= 94 main_x) (<= main_x 94)), 62247#(and (<= 95 main_x) (<= main_x 95)), 62248#(and (<= 96 main_x) (<= main_x 96)), 62249#(and (<= main_x 97) (<= 97 main_x)), 62250#(and (<= main_x 98) (<= 98 main_x)), 62251#(and (<= 99 main_x) (<= main_x 99)), 62252#(and (<= main_x 100) (<= 100 main_x)), 62253#(and (<= 101 main_x) (<= main_x 101)), 62254#(and (<= main_x 102) (<= 102 main_x)), 62255#(and (<= main_x 103) (<= 103 main_x)), 62256#(and (<= main_x 104) (<= 104 main_x)), 62257#(and (<= main_x 105) (<= 105 main_x)), 62258#(and (<= 106 main_x) (<= main_x 106)), 62259#(and (<= main_x 107) (<= 107 main_x)), 62260#(and (<= 108 main_x) (<= main_x 108)), 62261#(and (<= 109 main_x) (<= main_x 109)), 62262#(and (<= main_x 110) (<= 110 main_x)), 62263#(and (<= main_x 111) (<= 111 main_x)), 62264#(and (<= main_x 112) (<= 112 main_x)), 62265#(and (<= main_x 113) (<= 113 main_x)), 62266#(and (<= 114 main_x) (<= main_x 114)), 62267#(and (<= 115 main_x) (<= main_x 115)), 62268#(and (<= 116 main_x) (<= main_x 116)), 62269#(and (<= 117 main_x) (<= main_x 117)), 62270#(and (<= 118 main_x) (<= main_x 118)), 62271#(and (<= main_x 119) (<= 119 main_x)), 62272#(and (<= main_x 120) (<= 120 main_x)), 62273#(and (<= 121 main_x) (<= main_x 121)), 62274#(and (<= 122 main_x) (<= main_x 122)), 62275#(and (<= main_x 123) (<= 123 main_x)), 62276#(and (<= main_x 124) (<= 124 main_x)), 62277#(and (<= main_x 125) (<= 125 main_x)), 62278#(and (<= 126 main_x) (<= main_x 126)), 62279#(and (<= main_x 127) (<= 127 main_x)), 62280#(and (<= main_x 128) (<= 128 main_x)), 62281#(and (<= 129 main_x) (<= main_x 129)), 62282#(and (<= main_x 130) (<= 130 main_x)), 62283#(and (<= main_x 131) (<= 131 main_x)), 62284#(and (<= 132 main_x) (<= main_x 132)), 62285#(and (<= main_x 133) (<= 133 main_x)), 62286#(and (<= main_x 134) (<= 134 main_x)), 62287#(and (<= main_x 135) (<= 135 main_x)), 62288#(and (<= main_x 136) (<= 136 main_x)), 62289#(and (<= 137 main_x) (<= main_x 137)), 62290#(and (<= main_x 138) (<= 138 main_x)), 62291#(and (<= main_x 139) (<= 139 main_x)), 62292#(and (<= main_x 140) (<= 140 main_x)), 62293#(and (<= main_x 141) (<= 141 main_x)), 62294#(and (<= 142 main_x) (<= main_x 142)), 62295#(and (<= 143 main_x) (<= main_x 143)), 62296#(and (<= main_x 144) (<= 144 main_x)), 62297#(and (<= 145 main_x) (<= main_x 145)), 62298#(and (<= main_x 146) (<= 146 main_x)), 62299#(and (<= main_x 147) (<= 147 main_x)), 62300#(and (<= 148 main_x) (<= main_x 148)), 62301#(and (<= 149 main_x) (<= main_x 149)), 62302#(and (<= 150 main_x) (<= main_x 150)), 62303#(and (<= 151 main_x) (<= main_x 151)), 62304#(and (<= 152 main_x) (<= main_x 152)), 62305#(and (<= main_x 153) (<= 153 main_x)), 62306#(or (<= (+ main_x 102) 0) (<= 154 main_x)), 62150#true, 62151#false, 62152#(and (<= main_x 0) (<= 0 main_x)), 62153#(and (<= 1 main_x) (<= main_x 1)), 62154#(and (<= 2 main_x) (<= main_x 2)), 62155#(and (<= 3 main_x) (<= main_x 3)), 62156#(and (<= main_x 4) (<= 4 main_x)), 62157#(and (<= 5 main_x) (<= main_x 5)), 62158#(and (<= 6 main_x) (<= main_x 6)), 62159#(and (<= main_x 7) (<= 7 main_x)), 62160#(and (<= main_x 8) (<= 8 main_x)), 62161#(and (<= 9 main_x) (<= main_x 9)), 62162#(and (<= main_x 10) (<= 10 main_x)), 62163#(and (<= 11 main_x) (<= main_x 11)), 62164#(and (<= 12 main_x) (<= main_x 12)), 62165#(and (<= 13 main_x) (<= main_x 13)), 62166#(and (<= 14 main_x) (<= main_x 14)), 62167#(and (<= 15 main_x) (<= main_x 15)), 62168#(and (<= main_x 16) (<= 16 main_x)), 62169#(and (<= 17 main_x) (<= main_x 17)), 62170#(and (<= main_x 18) (<= 18 main_x)), 62171#(and (<= main_x 19) (<= 19 main_x)), 62172#(and (<= 20 main_x) (<= main_x 20)), 62173#(and (<= 21 main_x) (<= main_x 21)), 62174#(and (<= main_x 22) (<= 22 main_x)), 62175#(and (<= 23 main_x) (<= main_x 23)), 62176#(and (<= main_x 24) (<= 24 main_x)), 62177#(and (<= main_x 25) (<= 25 main_x)), 62178#(and (<= main_x 26) (<= 26 main_x)), 62179#(and (<= main_x 27) (<= 27 main_x)), 62180#(and (<= main_x 28) (<= 28 main_x)), 62181#(and (<= main_x 29) (<= 29 main_x)), 62182#(and (<= 30 main_x) (<= main_x 30)), 62183#(and (<= 31 main_x) (<= main_x 31)), 62184#(and (<= 32 main_x) (<= main_x 32)), 62185#(and (<= main_x 33) (<= 33 main_x)), 62186#(and (<= 34 main_x) (<= main_x 34)), 62187#(and (<= main_x 35) (<= 35 main_x)), 62188#(and (<= main_x 36) (<= 36 main_x)), 62189#(and (<= 37 main_x) (<= main_x 37)), 62190#(and (<= 38 main_x) (<= main_x 38)), 62191#(and (<= 39 main_x) (<= main_x 39)), 62192#(and (<= main_x 40) (<= 40 main_x)), 62193#(and (<= 41 main_x) (<= main_x 41)), 62194#(and (<= 42 main_x) (<= main_x 42)), 62195#(and (<= 43 main_x) (<= main_x 43)), 62196#(and (<= main_x 44) (<= 44 main_x)), 62197#(and (<= 45 main_x) (<= main_x 45)), 62198#(and (<= 46 main_x) (<= main_x 46)), 62199#(and (<= 47 main_x) (<= main_x 47)), 62200#(and (<= 48 main_x) (<= main_x 48)), 62201#(and (<= main_x 49) (<= 49 main_x)), 62202#(and (<= main_x 50) (<= 50 main_x)), 62203#(and (<= main_x 51) (<= 51 main_x)), 62204#(and (<= 52 main_x) (<= main_x 52)), 62205#(and (<= main_x 53) (<= 53 main_x)), 62206#(and (<= 54 main_x) (<= main_x 54)), 62207#(and (<= 55 main_x) (<= main_x 55))] [2018-07-23 13:53:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11935 backedges. 0 proven. 11935 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 157 states [2018-07-23 13:53:49,408 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2018-07-23 13:53:49,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=311, Invalid=24181, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:53:49,409 INFO L87 Difference]: Start difference. First operand 157 states and 157 transitions. Second operand 157 states. [2018-07-23 13:53:51,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:51,106 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-07-23 13:53:51,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-07-23 13:53:51,106 INFO L78 Accepts]: Start accepts. Automaton has 157 states. Word has length 156 [2018-07-23 13:53:51,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:51,107 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:53:51,107 INFO L226 Difference]: Without dead ends: 158 [2018-07-23 13:53:51,108 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=311, Invalid=24181, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:53:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-07-23 13:53:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-07-23 13:53:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-07-23 13:53:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-07-23 13:53:51,113 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 156 [2018-07-23 13:53:51,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:51,114 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-07-23 13:53:51,114 INFO L472 AbstractCegarLoop]: Interpolant automaton has 157 states. [2018-07-23 13:53:51,114 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-07-23 13:53:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 13:53:51,114 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:51,114 INFO L357 BasicCegarLoop]: trace histogram [155, 1, 1] [2018-07-23 13:53:51,115 INFO L414 AbstractCegarLoop]: === Iteration 156 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:51,115 INFO L82 PathProgramCache]: Analyzing trace with hash -953936040, now seen corresponding path program 155 times [2018-07-23 13:53:51,115 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,369 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:52,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2018-07-23 13:53:52,370 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:52,370 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 13:53:52,370 INFO L185 omatonBuilderFactory]: Interpolants [62976#(and (<= main_x 33) (<= 33 main_x)), 62977#(and (<= 34 main_x) (<= main_x 34)), 62978#(and (<= main_x 35) (<= 35 main_x)), 62979#(and (<= main_x 36) (<= 36 main_x)), 62980#(and (<= 37 main_x) (<= main_x 37)), 62981#(and (<= 38 main_x) (<= main_x 38)), 62982#(and (<= 39 main_x) (<= main_x 39)), 62983#(and (<= main_x 40) (<= 40 main_x)), 62984#(and (<= 41 main_x) (<= main_x 41)), 62985#(and (<= 42 main_x) (<= main_x 42)), 62986#(and (<= 43 main_x) (<= main_x 43)), 62987#(and (<= main_x 44) (<= 44 main_x)), 62988#(and (<= 45 main_x) (<= main_x 45)), 62989#(and (<= 46 main_x) (<= main_x 46)), 62990#(and (<= 47 main_x) (<= main_x 47)), 62991#(and (<= 48 main_x) (<= main_x 48)), 62992#(and (<= main_x 49) (<= 49 main_x)), 62993#(and (<= main_x 50) (<= 50 main_x)), 62994#(and (<= main_x 51) (<= 51 main_x)), 62995#(and (<= 52 main_x) (<= main_x 52)), 62996#(and (<= main_x 53) (<= 53 main_x)), 62997#(and (<= 54 main_x) (<= main_x 54)), 62998#(and (<= 55 main_x) (<= main_x 55)), 62999#(and (<= main_x 56) (<= 56 main_x)), 63000#(and (<= main_x 57) (<= 57 main_x)), 63001#(and (<= 58 main_x) (<= main_x 58)), 63002#(and (<= 59 main_x) (<= main_x 59)), 63003#(and (<= main_x 60) (<= 60 main_x)), 63004#(and (<= main_x 61) (<= 61 main_x)), 63005#(and (<= main_x 62) (<= 62 main_x)), 63006#(and (<= 63 main_x) (<= main_x 63)), 63007#(and (<= 64 main_x) (<= main_x 64)), 63008#(and (<= main_x 65) (<= 65 main_x)), 63009#(and (<= main_x 66) (<= 66 main_x)), 63010#(and (<= 67 main_x) (<= main_x 67)), 63011#(and (<= main_x 68) (<= 68 main_x)), 63012#(and (<= 69 main_x) (<= main_x 69)), 63013#(and (<= main_x 70) (<= 70 main_x)), 63014#(and (<= 71 main_x) (<= main_x 71)), 63015#(and (<= main_x 72) (<= 72 main_x)), 63016#(and (<= main_x 73) (<= 73 main_x)), 63017#(and (<= 74 main_x) (<= main_x 74)), 63018#(and (<= main_x 75) (<= 75 main_x)), 63019#(and (<= main_x 76) (<= 76 main_x)), 63020#(and (<= 77 main_x) (<= main_x 77)), 63021#(and (<= 78 main_x) (<= main_x 78)), 63022#(and (<= 79 main_x) (<= main_x 79)), 63023#(and (<= main_x 80) (<= 80 main_x)), 63024#(and (<= 81 main_x) (<= main_x 81)), 63025#(and (<= 82 main_x) (<= main_x 82)), 63026#(and (<= 83 main_x) (<= main_x 83)), 63027#(and (<= main_x 84) (<= 84 main_x)), 63028#(and (<= 85 main_x) (<= main_x 85)), 63029#(and (<= 86 main_x) (<= main_x 86)), 63030#(and (<= 87 main_x) (<= main_x 87)), 63031#(and (<= 88 main_x) (<= main_x 88)), 63032#(and (<= 89 main_x) (<= main_x 89)), 63033#(and (<= 90 main_x) (<= main_x 90)), 63034#(and (<= main_x 91) (<= 91 main_x)), 63035#(and (<= main_x 92) (<= 92 main_x)), 63036#(and (<= 93 main_x) (<= main_x 93)), 63037#(and (<= 94 main_x) (<= main_x 94)), 63038#(and (<= 95 main_x) (<= main_x 95)), 63039#(and (<= 96 main_x) (<= main_x 96)), 63040#(and (<= main_x 97) (<= 97 main_x)), 63041#(and (<= main_x 98) (<= 98 main_x)), 63042#(and (<= 99 main_x) (<= main_x 99)), 63043#(and (<= main_x 100) (<= 100 main_x)), 63044#(and (<= 101 main_x) (<= main_x 101)), 63045#(and (<= main_x 102) (<= 102 main_x)), 63046#(and (<= main_x 103) (<= 103 main_x)), 63047#(and (<= main_x 104) (<= 104 main_x)), 63048#(and (<= main_x 105) (<= 105 main_x)), 63049#(and (<= 106 main_x) (<= main_x 106)), 63050#(and (<= main_x 107) (<= 107 main_x)), 63051#(and (<= 108 main_x) (<= main_x 108)), 63052#(and (<= 109 main_x) (<= main_x 109)), 63053#(and (<= main_x 110) (<= 110 main_x)), 63054#(and (<= main_x 111) (<= 111 main_x)), 63055#(and (<= main_x 112) (<= 112 main_x)), 63056#(and (<= main_x 113) (<= 113 main_x)), 63057#(and (<= 114 main_x) (<= main_x 114)), 63058#(and (<= 115 main_x) (<= main_x 115)), 63059#(and (<= 116 main_x) (<= main_x 116)), 63060#(and (<= 117 main_x) (<= main_x 117)), 63061#(and (<= 118 main_x) (<= main_x 118)), 63062#(and (<= main_x 119) (<= 119 main_x)), 63063#(and (<= main_x 120) (<= 120 main_x)), 63064#(and (<= 121 main_x) (<= main_x 121)), 63065#(and (<= 122 main_x) (<= main_x 122)), 63066#(and (<= main_x 123) (<= 123 main_x)), 63067#(and (<= main_x 124) (<= 124 main_x)), 63068#(and (<= main_x 125) (<= 125 main_x)), 63069#(and (<= 126 main_x) (<= main_x 126)), 63070#(and (<= main_x 127) (<= 127 main_x)), 63071#(and (<= main_x 128) (<= 128 main_x)), 63072#(and (<= 129 main_x) (<= main_x 129)), 63073#(and (<= main_x 130) (<= 130 main_x)), 63074#(and (<= main_x 131) (<= 131 main_x)), 63075#(and (<= 132 main_x) (<= main_x 132)), 63076#(and (<= main_x 133) (<= 133 main_x)), 63077#(and (<= main_x 134) (<= 134 main_x)), 63078#(and (<= main_x 135) (<= 135 main_x)), 63079#(and (<= main_x 136) (<= 136 main_x)), 63080#(and (<= 137 main_x) (<= main_x 137)), 63081#(and (<= main_x 138) (<= 138 main_x)), 63082#(and (<= main_x 139) (<= 139 main_x)), 63083#(and (<= main_x 140) (<= 140 main_x)), 63084#(and (<= main_x 141) (<= 141 main_x)), 63085#(and (<= 142 main_x) (<= main_x 142)), 63086#(and (<= 143 main_x) (<= main_x 143)), 63087#(and (<= main_x 144) (<= 144 main_x)), 63088#(and (<= 145 main_x) (<= main_x 145)), 63089#(and (<= main_x 146) (<= 146 main_x)), 63090#(and (<= main_x 147) (<= 147 main_x)), 63091#(and (<= 148 main_x) (<= main_x 148)), 63092#(and (<= 149 main_x) (<= main_x 149)), 63093#(and (<= 150 main_x) (<= main_x 150)), 63094#(and (<= 151 main_x) (<= main_x 151)), 63095#(and (<= 152 main_x) (<= main_x 152)), 63096#(and (<= main_x 153) (<= 153 main_x)), 63097#(and (<= main_x 154) (<= 154 main_x)), 63098#(or (<= (+ main_x 101) 0) (<= 155 main_x)), 62941#true, 62942#false, 62943#(and (<= main_x 0) (<= 0 main_x)), 62944#(and (<= 1 main_x) (<= main_x 1)), 62945#(and (<= 2 main_x) (<= main_x 2)), 62946#(and (<= 3 main_x) (<= main_x 3)), 62947#(and (<= main_x 4) (<= 4 main_x)), 62948#(and (<= 5 main_x) (<= main_x 5)), 62949#(and (<= 6 main_x) (<= main_x 6)), 62950#(and (<= main_x 7) (<= 7 main_x)), 62951#(and (<= main_x 8) (<= 8 main_x)), 62952#(and (<= 9 main_x) (<= main_x 9)), 62953#(and (<= main_x 10) (<= 10 main_x)), 62954#(and (<= 11 main_x) (<= main_x 11)), 62955#(and (<= 12 main_x) (<= main_x 12)), 62956#(and (<= 13 main_x) (<= main_x 13)), 62957#(and (<= 14 main_x) (<= main_x 14)), 62958#(and (<= 15 main_x) (<= main_x 15)), 62959#(and (<= main_x 16) (<= 16 main_x)), 62960#(and (<= 17 main_x) (<= main_x 17)), 62961#(and (<= main_x 18) (<= 18 main_x)), 62962#(and (<= main_x 19) (<= 19 main_x)), 62963#(and (<= 20 main_x) (<= main_x 20)), 62964#(and (<= 21 main_x) (<= main_x 21)), 62965#(and (<= main_x 22) (<= 22 main_x)), 62966#(and (<= 23 main_x) (<= main_x 23)), 62967#(and (<= main_x 24) (<= 24 main_x)), 62968#(and (<= main_x 25) (<= 25 main_x)), 62969#(and (<= main_x 26) (<= 26 main_x)), 62970#(and (<= main_x 27) (<= 27 main_x)), 62971#(and (<= main_x 28) (<= 28 main_x)), 62972#(and (<= main_x 29) (<= 29 main_x)), 62973#(and (<= 30 main_x) (<= main_x 30)), 62974#(and (<= 31 main_x) (<= main_x 31)), 62975#(and (<= 32 main_x) (<= main_x 32))] [2018-07-23 13:53:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12090 backedges. 0 proven. 12090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:52,371 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:53:52,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:53:52,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=24493, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:53:52,372 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 158 states. [2018-07-23 13:53:54,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:54,109 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2018-07-23 13:53:54,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:53:54,110 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 157 [2018-07-23 13:53:54,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:54,110 INFO L225 Difference]: With dead ends: 160 [2018-07-23 13:53:54,110 INFO L226 Difference]: Without dead ends: 159 [2018-07-23 13:53:54,111 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=313, Invalid=24493, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:53:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2018-07-23 13:53:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2018-07-23 13:53:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-07-23 13:53:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2018-07-23 13:53:54,117 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 157 [2018-07-23 13:53:54,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:54,118 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2018-07-23 13:53:54,118 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:53:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2018-07-23 13:53:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-07-23 13:53:54,118 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:54,118 INFO L357 BasicCegarLoop]: trace histogram [156, 1, 1] [2018-07-23 13:53:54,118 INFO L414 AbstractCegarLoop]: === Iteration 157 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash 492754067, now seen corresponding path program 156 times [2018-07-23 13:53:54,119 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:54,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:55,451 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:55,451 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:53:55,451 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:55,451 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 13:53:55,452 INFO L185 omatonBuilderFactory]: Interpolants [63744#(and (<= 5 main_x) (<= main_x 5)), 63745#(and (<= 6 main_x) (<= main_x 6)), 63746#(and (<= main_x 7) (<= 7 main_x)), 63747#(and (<= main_x 8) (<= 8 main_x)), 63748#(and (<= 9 main_x) (<= main_x 9)), 63749#(and (<= main_x 10) (<= 10 main_x)), 63750#(and (<= 11 main_x) (<= main_x 11)), 63751#(and (<= 12 main_x) (<= main_x 12)), 63752#(and (<= 13 main_x) (<= main_x 13)), 63753#(and (<= 14 main_x) (<= main_x 14)), 63754#(and (<= 15 main_x) (<= main_x 15)), 63755#(and (<= main_x 16) (<= 16 main_x)), 63756#(and (<= 17 main_x) (<= main_x 17)), 63757#(and (<= main_x 18) (<= 18 main_x)), 63758#(and (<= main_x 19) (<= 19 main_x)), 63759#(and (<= 20 main_x) (<= main_x 20)), 63760#(and (<= 21 main_x) (<= main_x 21)), 63761#(and (<= main_x 22) (<= 22 main_x)), 63762#(and (<= 23 main_x) (<= main_x 23)), 63763#(and (<= main_x 24) (<= 24 main_x)), 63764#(and (<= main_x 25) (<= 25 main_x)), 63765#(and (<= main_x 26) (<= 26 main_x)), 63766#(and (<= main_x 27) (<= 27 main_x)), 63767#(and (<= main_x 28) (<= 28 main_x)), 63768#(and (<= main_x 29) (<= 29 main_x)), 63769#(and (<= 30 main_x) (<= main_x 30)), 63770#(and (<= 31 main_x) (<= main_x 31)), 63771#(and (<= 32 main_x) (<= main_x 32)), 63772#(and (<= main_x 33) (<= 33 main_x)), 63773#(and (<= 34 main_x) (<= main_x 34)), 63774#(and (<= main_x 35) (<= 35 main_x)), 63775#(and (<= main_x 36) (<= 36 main_x)), 63776#(and (<= 37 main_x) (<= main_x 37)), 63777#(and (<= 38 main_x) (<= main_x 38)), 63778#(and (<= 39 main_x) (<= main_x 39)), 63779#(and (<= main_x 40) (<= 40 main_x)), 63780#(and (<= 41 main_x) (<= main_x 41)), 63781#(and (<= 42 main_x) (<= main_x 42)), 63782#(and (<= 43 main_x) (<= main_x 43)), 63783#(and (<= main_x 44) (<= 44 main_x)), 63784#(and (<= 45 main_x) (<= main_x 45)), 63785#(and (<= 46 main_x) (<= main_x 46)), 63786#(and (<= 47 main_x) (<= main_x 47)), 63787#(and (<= 48 main_x) (<= main_x 48)), 63788#(and (<= main_x 49) (<= 49 main_x)), 63789#(and (<= main_x 50) (<= 50 main_x)), 63790#(and (<= main_x 51) (<= 51 main_x)), 63791#(and (<= 52 main_x) (<= main_x 52)), 63792#(and (<= main_x 53) (<= 53 main_x)), 63793#(and (<= 54 main_x) (<= main_x 54)), 63794#(and (<= 55 main_x) (<= main_x 55)), 63795#(and (<= main_x 56) (<= 56 main_x)), 63796#(and (<= main_x 57) (<= 57 main_x)), 63797#(and (<= 58 main_x) (<= main_x 58)), 63798#(and (<= 59 main_x) (<= main_x 59)), 63799#(and (<= main_x 60) (<= 60 main_x)), 63800#(and (<= main_x 61) (<= 61 main_x)), 63801#(and (<= main_x 62) (<= 62 main_x)), 63802#(and (<= 63 main_x) (<= main_x 63)), 63803#(and (<= 64 main_x) (<= main_x 64)), 63804#(and (<= main_x 65) (<= 65 main_x)), 63805#(and (<= main_x 66) (<= 66 main_x)), 63806#(and (<= 67 main_x) (<= main_x 67)), 63807#(and (<= main_x 68) (<= 68 main_x)), 63808#(and (<= 69 main_x) (<= main_x 69)), 63809#(and (<= main_x 70) (<= 70 main_x)), 63810#(and (<= 71 main_x) (<= main_x 71)), 63811#(and (<= main_x 72) (<= 72 main_x)), 63812#(and (<= main_x 73) (<= 73 main_x)), 63813#(and (<= 74 main_x) (<= main_x 74)), 63814#(and (<= main_x 75) (<= 75 main_x)), 63815#(and (<= main_x 76) (<= 76 main_x)), 63816#(and (<= 77 main_x) (<= main_x 77)), 63817#(and (<= 78 main_x) (<= main_x 78)), 63818#(and (<= 79 main_x) (<= main_x 79)), 63819#(and (<= main_x 80) (<= 80 main_x)), 63820#(and (<= 81 main_x) (<= main_x 81)), 63821#(and (<= 82 main_x) (<= main_x 82)), 63822#(and (<= 83 main_x) (<= main_x 83)), 63823#(and (<= main_x 84) (<= 84 main_x)), 63824#(and (<= 85 main_x) (<= main_x 85)), 63825#(and (<= 86 main_x) (<= main_x 86)), 63826#(and (<= 87 main_x) (<= main_x 87)), 63827#(and (<= 88 main_x) (<= main_x 88)), 63828#(and (<= 89 main_x) (<= main_x 89)), 63829#(and (<= 90 main_x) (<= main_x 90)), 63830#(and (<= main_x 91) (<= 91 main_x)), 63831#(and (<= main_x 92) (<= 92 main_x)), 63832#(and (<= 93 main_x) (<= main_x 93)), 63833#(and (<= 94 main_x) (<= main_x 94)), 63834#(and (<= 95 main_x) (<= main_x 95)), 63835#(and (<= 96 main_x) (<= main_x 96)), 63836#(and (<= main_x 97) (<= 97 main_x)), 63837#(and (<= main_x 98) (<= 98 main_x)), 63838#(and (<= 99 main_x) (<= main_x 99)), 63839#(and (<= main_x 100) (<= 100 main_x)), 63840#(and (<= 101 main_x) (<= main_x 101)), 63841#(and (<= main_x 102) (<= 102 main_x)), 63842#(and (<= main_x 103) (<= 103 main_x)), 63843#(and (<= main_x 104) (<= 104 main_x)), 63844#(and (<= main_x 105) (<= 105 main_x)), 63845#(and (<= 106 main_x) (<= main_x 106)), 63846#(and (<= main_x 107) (<= 107 main_x)), 63847#(and (<= 108 main_x) (<= main_x 108)), 63848#(and (<= 109 main_x) (<= main_x 109)), 63849#(and (<= main_x 110) (<= 110 main_x)), 63850#(and (<= main_x 111) (<= 111 main_x)), 63851#(and (<= main_x 112) (<= 112 main_x)), 63852#(and (<= main_x 113) (<= 113 main_x)), 63853#(and (<= 114 main_x) (<= main_x 114)), 63854#(and (<= 115 main_x) (<= main_x 115)), 63855#(and (<= 116 main_x) (<= main_x 116)), 63856#(and (<= 117 main_x) (<= main_x 117)), 63857#(and (<= 118 main_x) (<= main_x 118)), 63858#(and (<= main_x 119) (<= 119 main_x)), 63859#(and (<= main_x 120) (<= 120 main_x)), 63860#(and (<= 121 main_x) (<= main_x 121)), 63861#(and (<= 122 main_x) (<= main_x 122)), 63862#(and (<= main_x 123) (<= 123 main_x)), 63863#(and (<= main_x 124) (<= 124 main_x)), 63864#(and (<= main_x 125) (<= 125 main_x)), 63865#(and (<= 126 main_x) (<= main_x 126)), 63866#(and (<= main_x 127) (<= 127 main_x)), 63867#(and (<= main_x 128) (<= 128 main_x)), 63868#(and (<= 129 main_x) (<= main_x 129)), 63869#(and (<= main_x 130) (<= 130 main_x)), 63870#(and (<= main_x 131) (<= 131 main_x)), 63871#(and (<= 132 main_x) (<= main_x 132)), 63872#(and (<= main_x 133) (<= 133 main_x)), 63873#(and (<= main_x 134) (<= 134 main_x)), 63874#(and (<= main_x 135) (<= 135 main_x)), 63875#(and (<= main_x 136) (<= 136 main_x)), 63876#(and (<= 137 main_x) (<= main_x 137)), 63877#(and (<= main_x 138) (<= 138 main_x)), 63878#(and (<= main_x 139) (<= 139 main_x)), 63879#(and (<= main_x 140) (<= 140 main_x)), 63880#(and (<= main_x 141) (<= 141 main_x)), 63881#(and (<= 142 main_x) (<= main_x 142)), 63882#(and (<= 143 main_x) (<= main_x 143)), 63883#(and (<= main_x 144) (<= 144 main_x)), 63884#(and (<= 145 main_x) (<= main_x 145)), 63885#(and (<= main_x 146) (<= 146 main_x)), 63886#(and (<= main_x 147) (<= 147 main_x)), 63887#(and (<= 148 main_x) (<= main_x 148)), 63888#(and (<= 149 main_x) (<= main_x 149)), 63889#(and (<= 150 main_x) (<= main_x 150)), 63890#(and (<= 151 main_x) (<= main_x 151)), 63891#(and (<= 152 main_x) (<= main_x 152)), 63892#(and (<= main_x 153) (<= 153 main_x)), 63893#(and (<= main_x 154) (<= 154 main_x)), 63894#(and (<= 155 main_x) (<= main_x 155)), 63895#(or (<= 156 main_x) (<= (+ main_x 100) 0)), 63737#true, 63738#false, 63739#(and (<= main_x 0) (<= 0 main_x)), 63740#(and (<= 1 main_x) (<= main_x 1)), 63741#(and (<= 2 main_x) (<= main_x 2)), 63742#(and (<= 3 main_x) (<= main_x 3)), 63743#(and (<= main_x 4) (<= 4 main_x))] [2018-07-23 13:53:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12246 backedges. 0 proven. 12246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:55,452 INFO L450 AbstractCegarLoop]: Interpolant automaton has 159 states [2018-07-23 13:53:55,453 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2018-07-23 13:53:55,453 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=24807, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:53:55,453 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand 159 states. [2018-07-23 13:53:57,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:57,140 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-07-23 13:53:57,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-07-23 13:53:57,140 INFO L78 Accepts]: Start accepts. Automaton has 159 states. Word has length 158 [2018-07-23 13:53:57,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:57,140 INFO L225 Difference]: With dead ends: 161 [2018-07-23 13:53:57,140 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:53:57,142 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=315, Invalid=24807, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:53:57,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:53:57,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:53:57,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:53:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-07-23 13:53:57,147 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 158 [2018-07-23 13:53:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:57,148 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-07-23 13:53:57,148 INFO L472 AbstractCegarLoop]: Interpolant automaton has 159 states. [2018-07-23 13:53:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-07-23 13:53:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:53:57,148 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:57,148 INFO L357 BasicCegarLoop]: trace histogram [157, 1, 1] [2018-07-23 13:53:57,148 INFO L414 AbstractCegarLoop]: === Iteration 158 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:57,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1904492872, now seen corresponding path program 157 times [2018-07-23 13:53:57,149 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,306 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:58,306 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2018-07-23 13:53:58,306 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:58,306 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 13:53:58,306 INFO L185 omatonBuilderFactory]: Interpolants [64538#true, 64539#false, 64540#(and (<= main_x 0) (<= 0 main_x)), 64541#(and (<= 1 main_x) (<= main_x 1)), 64542#(and (<= 2 main_x) (<= main_x 2)), 64543#(and (<= 3 main_x) (<= main_x 3)), 64544#(and (<= main_x 4) (<= 4 main_x)), 64545#(and (<= 5 main_x) (<= main_x 5)), 64546#(and (<= 6 main_x) (<= main_x 6)), 64547#(and (<= main_x 7) (<= 7 main_x)), 64548#(and (<= main_x 8) (<= 8 main_x)), 64549#(and (<= 9 main_x) (<= main_x 9)), 64550#(and (<= main_x 10) (<= 10 main_x)), 64551#(and (<= 11 main_x) (<= main_x 11)), 64552#(and (<= 12 main_x) (<= main_x 12)), 64553#(and (<= 13 main_x) (<= main_x 13)), 64554#(and (<= 14 main_x) (<= main_x 14)), 64555#(and (<= 15 main_x) (<= main_x 15)), 64556#(and (<= main_x 16) (<= 16 main_x)), 64557#(and (<= 17 main_x) (<= main_x 17)), 64558#(and (<= main_x 18) (<= 18 main_x)), 64559#(and (<= main_x 19) (<= 19 main_x)), 64560#(and (<= 20 main_x) (<= main_x 20)), 64561#(and (<= 21 main_x) (<= main_x 21)), 64562#(and (<= main_x 22) (<= 22 main_x)), 64563#(and (<= 23 main_x) (<= main_x 23)), 64564#(and (<= main_x 24) (<= 24 main_x)), 64565#(and (<= main_x 25) (<= 25 main_x)), 64566#(and (<= main_x 26) (<= 26 main_x)), 64567#(and (<= main_x 27) (<= 27 main_x)), 64568#(and (<= main_x 28) (<= 28 main_x)), 64569#(and (<= main_x 29) (<= 29 main_x)), 64570#(and (<= 30 main_x) (<= main_x 30)), 64571#(and (<= 31 main_x) (<= main_x 31)), 64572#(and (<= 32 main_x) (<= main_x 32)), 64573#(and (<= main_x 33) (<= 33 main_x)), 64574#(and (<= 34 main_x) (<= main_x 34)), 64575#(and (<= main_x 35) (<= 35 main_x)), 64576#(and (<= main_x 36) (<= 36 main_x)), 64577#(and (<= 37 main_x) (<= main_x 37)), 64578#(and (<= 38 main_x) (<= main_x 38)), 64579#(and (<= 39 main_x) (<= main_x 39)), 64580#(and (<= main_x 40) (<= 40 main_x)), 64581#(and (<= 41 main_x) (<= main_x 41)), 64582#(and (<= 42 main_x) (<= main_x 42)), 64583#(and (<= 43 main_x) (<= main_x 43)), 64584#(and (<= main_x 44) (<= 44 main_x)), 64585#(and (<= 45 main_x) (<= main_x 45)), 64586#(and (<= 46 main_x) (<= main_x 46)), 64587#(and (<= 47 main_x) (<= main_x 47)), 64588#(and (<= 48 main_x) (<= main_x 48)), 64589#(and (<= main_x 49) (<= 49 main_x)), 64590#(and (<= main_x 50) (<= 50 main_x)), 64591#(and (<= main_x 51) (<= 51 main_x)), 64592#(and (<= 52 main_x) (<= main_x 52)), 64593#(and (<= main_x 53) (<= 53 main_x)), 64594#(and (<= 54 main_x) (<= main_x 54)), 64595#(and (<= 55 main_x) (<= main_x 55)), 64596#(and (<= main_x 56) (<= 56 main_x)), 64597#(and (<= main_x 57) (<= 57 main_x)), 64598#(and (<= 58 main_x) (<= main_x 58)), 64599#(and (<= 59 main_x) (<= main_x 59)), 64600#(and (<= main_x 60) (<= 60 main_x)), 64601#(and (<= main_x 61) (<= 61 main_x)), 64602#(and (<= main_x 62) (<= 62 main_x)), 64603#(and (<= 63 main_x) (<= main_x 63)), 64604#(and (<= 64 main_x) (<= main_x 64)), 64605#(and (<= main_x 65) (<= 65 main_x)), 64606#(and (<= main_x 66) (<= 66 main_x)), 64607#(and (<= 67 main_x) (<= main_x 67)), 64608#(and (<= main_x 68) (<= 68 main_x)), 64609#(and (<= 69 main_x) (<= main_x 69)), 64610#(and (<= main_x 70) (<= 70 main_x)), 64611#(and (<= 71 main_x) (<= main_x 71)), 64612#(and (<= main_x 72) (<= 72 main_x)), 64613#(and (<= main_x 73) (<= 73 main_x)), 64614#(and (<= 74 main_x) (<= main_x 74)), 64615#(and (<= main_x 75) (<= 75 main_x)), 64616#(and (<= main_x 76) (<= 76 main_x)), 64617#(and (<= 77 main_x) (<= main_x 77)), 64618#(and (<= 78 main_x) (<= main_x 78)), 64619#(and (<= 79 main_x) (<= main_x 79)), 64620#(and (<= main_x 80) (<= 80 main_x)), 64621#(and (<= 81 main_x) (<= main_x 81)), 64622#(and (<= 82 main_x) (<= main_x 82)), 64623#(and (<= 83 main_x) (<= main_x 83)), 64624#(and (<= main_x 84) (<= 84 main_x)), 64625#(and (<= 85 main_x) (<= main_x 85)), 64626#(and (<= 86 main_x) (<= main_x 86)), 64627#(and (<= 87 main_x) (<= main_x 87)), 64628#(and (<= 88 main_x) (<= main_x 88)), 64629#(and (<= 89 main_x) (<= main_x 89)), 64630#(and (<= 90 main_x) (<= main_x 90)), 64631#(and (<= main_x 91) (<= 91 main_x)), 64632#(and (<= main_x 92) (<= 92 main_x)), 64633#(and (<= 93 main_x) (<= main_x 93)), 64634#(and (<= 94 main_x) (<= main_x 94)), 64635#(and (<= 95 main_x) (<= main_x 95)), 64636#(and (<= 96 main_x) (<= main_x 96)), 64637#(and (<= main_x 97) (<= 97 main_x)), 64638#(and (<= main_x 98) (<= 98 main_x)), 64639#(and (<= 99 main_x) (<= main_x 99)), 64640#(and (<= main_x 100) (<= 100 main_x)), 64641#(and (<= 101 main_x) (<= main_x 101)), 64642#(and (<= main_x 102) (<= 102 main_x)), 64643#(and (<= main_x 103) (<= 103 main_x)), 64644#(and (<= main_x 104) (<= 104 main_x)), 64645#(and (<= main_x 105) (<= 105 main_x)), 64646#(and (<= 106 main_x) (<= main_x 106)), 64647#(and (<= main_x 107) (<= 107 main_x)), 64648#(and (<= 108 main_x) (<= main_x 108)), 64649#(and (<= 109 main_x) (<= main_x 109)), 64650#(and (<= main_x 110) (<= 110 main_x)), 64651#(and (<= main_x 111) (<= 111 main_x)), 64652#(and (<= main_x 112) (<= 112 main_x)), 64653#(and (<= main_x 113) (<= 113 main_x)), 64654#(and (<= 114 main_x) (<= main_x 114)), 64655#(and (<= 115 main_x) (<= main_x 115)), 64656#(and (<= 116 main_x) (<= main_x 116)), 64657#(and (<= 117 main_x) (<= main_x 117)), 64658#(and (<= 118 main_x) (<= main_x 118)), 64659#(and (<= main_x 119) (<= 119 main_x)), 64660#(and (<= main_x 120) (<= 120 main_x)), 64661#(and (<= 121 main_x) (<= main_x 121)), 64662#(and (<= 122 main_x) (<= main_x 122)), 64663#(and (<= main_x 123) (<= 123 main_x)), 64664#(and (<= main_x 124) (<= 124 main_x)), 64665#(and (<= main_x 125) (<= 125 main_x)), 64666#(and (<= 126 main_x) (<= main_x 126)), 64667#(and (<= main_x 127) (<= 127 main_x)), 64668#(and (<= main_x 128) (<= 128 main_x)), 64669#(and (<= 129 main_x) (<= main_x 129)), 64670#(and (<= main_x 130) (<= 130 main_x)), 64671#(and (<= main_x 131) (<= 131 main_x)), 64672#(and (<= 132 main_x) (<= main_x 132)), 64673#(and (<= main_x 133) (<= 133 main_x)), 64674#(and (<= main_x 134) (<= 134 main_x)), 64675#(and (<= main_x 135) (<= 135 main_x)), 64676#(and (<= main_x 136) (<= 136 main_x)), 64677#(and (<= 137 main_x) (<= main_x 137)), 64678#(and (<= main_x 138) (<= 138 main_x)), 64679#(and (<= main_x 139) (<= 139 main_x)), 64680#(and (<= main_x 140) (<= 140 main_x)), 64681#(and (<= main_x 141) (<= 141 main_x)), 64682#(and (<= 142 main_x) (<= main_x 142)), 64683#(and (<= 143 main_x) (<= main_x 143)), 64684#(and (<= main_x 144) (<= 144 main_x)), 64685#(and (<= 145 main_x) (<= main_x 145)), 64686#(and (<= main_x 146) (<= 146 main_x)), 64687#(and (<= main_x 147) (<= 147 main_x)), 64688#(and (<= 148 main_x) (<= main_x 148)), 64689#(and (<= 149 main_x) (<= main_x 149)), 64690#(and (<= 150 main_x) (<= main_x 150)), 64691#(and (<= 151 main_x) (<= main_x 151)), 64692#(and (<= 152 main_x) (<= main_x 152)), 64693#(and (<= main_x 153) (<= 153 main_x)), 64694#(and (<= main_x 154) (<= 154 main_x)), 64695#(and (<= 155 main_x) (<= main_x 155)), 64696#(and (<= main_x 156) (<= 156 main_x)), 64697#(or (<= (+ main_x 99) 0) (<= 157 main_x))] [2018-07-23 13:53:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 12403 backedges. 0 proven. 12403 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,307 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:53:58,307 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:53:58,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=25123, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:53:58,308 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 160 states. [2018-07-23 13:54:00,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:00,026 INFO L93 Difference]: Finished difference Result 162 states and 162 transitions. [2018-07-23 13:54:00,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:54:00,026 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 159 [2018-07-23 13:54:00,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:00,026 INFO L225 Difference]: With dead ends: 162 [2018-07-23 13:54:00,027 INFO L226 Difference]: Without dead ends: 161 [2018-07-23 13:54:00,027 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=317, Invalid=25123, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:54:00,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2018-07-23 13:54:00,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2018-07-23 13:54:00,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-07-23 13:54:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2018-07-23 13:54:00,036 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 159 [2018-07-23 13:54:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:00,036 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2018-07-23 13:54:00,036 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:54:00,036 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2018-07-23 13:54:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-07-23 13:54:00,037 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:00,037 INFO L357 BasicCegarLoop]: trace histogram [158, 1, 1] [2018-07-23 13:54:00,037 INFO L414 AbstractCegarLoop]: === Iteration 159 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:00,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1090263347, now seen corresponding path program 158 times [2018-07-23 13:54:00,038 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:01,348 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:01,348 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:54:01,348 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:01,348 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 13:54:01,349 INFO L185 omatonBuilderFactory]: Interpolants [65344#true, 65345#false, 65346#(and (<= main_x 0) (<= 0 main_x)), 65347#(and (<= 1 main_x) (<= main_x 1)), 65348#(and (<= 2 main_x) (<= main_x 2)), 65349#(and (<= 3 main_x) (<= main_x 3)), 65350#(and (<= main_x 4) (<= 4 main_x)), 65351#(and (<= 5 main_x) (<= main_x 5)), 65352#(and (<= 6 main_x) (<= main_x 6)), 65353#(and (<= main_x 7) (<= 7 main_x)), 65354#(and (<= main_x 8) (<= 8 main_x)), 65355#(and (<= 9 main_x) (<= main_x 9)), 65356#(and (<= main_x 10) (<= 10 main_x)), 65357#(and (<= 11 main_x) (<= main_x 11)), 65358#(and (<= 12 main_x) (<= main_x 12)), 65359#(and (<= 13 main_x) (<= main_x 13)), 65360#(and (<= 14 main_x) (<= main_x 14)), 65361#(and (<= 15 main_x) (<= main_x 15)), 65362#(and (<= main_x 16) (<= 16 main_x)), 65363#(and (<= 17 main_x) (<= main_x 17)), 65364#(and (<= main_x 18) (<= 18 main_x)), 65365#(and (<= main_x 19) (<= 19 main_x)), 65366#(and (<= 20 main_x) (<= main_x 20)), 65367#(and (<= 21 main_x) (<= main_x 21)), 65368#(and (<= main_x 22) (<= 22 main_x)), 65369#(and (<= 23 main_x) (<= main_x 23)), 65370#(and (<= main_x 24) (<= 24 main_x)), 65371#(and (<= main_x 25) (<= 25 main_x)), 65372#(and (<= main_x 26) (<= 26 main_x)), 65373#(and (<= main_x 27) (<= 27 main_x)), 65374#(and (<= main_x 28) (<= 28 main_x)), 65375#(and (<= main_x 29) (<= 29 main_x)), 65376#(and (<= 30 main_x) (<= main_x 30)), 65377#(and (<= 31 main_x) (<= main_x 31)), 65378#(and (<= 32 main_x) (<= main_x 32)), 65379#(and (<= main_x 33) (<= 33 main_x)), 65380#(and (<= 34 main_x) (<= main_x 34)), 65381#(and (<= main_x 35) (<= 35 main_x)), 65382#(and (<= main_x 36) (<= 36 main_x)), 65383#(and (<= 37 main_x) (<= main_x 37)), 65384#(and (<= 38 main_x) (<= main_x 38)), 65385#(and (<= 39 main_x) (<= main_x 39)), 65386#(and (<= main_x 40) (<= 40 main_x)), 65387#(and (<= 41 main_x) (<= main_x 41)), 65388#(and (<= 42 main_x) (<= main_x 42)), 65389#(and (<= 43 main_x) (<= main_x 43)), 65390#(and (<= main_x 44) (<= 44 main_x)), 65391#(and (<= 45 main_x) (<= main_x 45)), 65392#(and (<= 46 main_x) (<= main_x 46)), 65393#(and (<= 47 main_x) (<= main_x 47)), 65394#(and (<= 48 main_x) (<= main_x 48)), 65395#(and (<= main_x 49) (<= 49 main_x)), 65396#(and (<= main_x 50) (<= 50 main_x)), 65397#(and (<= main_x 51) (<= 51 main_x)), 65398#(and (<= 52 main_x) (<= main_x 52)), 65399#(and (<= main_x 53) (<= 53 main_x)), 65400#(and (<= 54 main_x) (<= main_x 54)), 65401#(and (<= 55 main_x) (<= main_x 55)), 65402#(and (<= main_x 56) (<= 56 main_x)), 65403#(and (<= main_x 57) (<= 57 main_x)), 65404#(and (<= 58 main_x) (<= main_x 58)), 65405#(and (<= 59 main_x) (<= main_x 59)), 65406#(and (<= main_x 60) (<= 60 main_x)), 65407#(and (<= main_x 61) (<= 61 main_x)), 65408#(and (<= main_x 62) (<= 62 main_x)), 65409#(and (<= 63 main_x) (<= main_x 63)), 65410#(and (<= 64 main_x) (<= main_x 64)), 65411#(and (<= main_x 65) (<= 65 main_x)), 65412#(and (<= main_x 66) (<= 66 main_x)), 65413#(and (<= 67 main_x) (<= main_x 67)), 65414#(and (<= main_x 68) (<= 68 main_x)), 65415#(and (<= 69 main_x) (<= main_x 69)), 65416#(and (<= main_x 70) (<= 70 main_x)), 65417#(and (<= 71 main_x) (<= main_x 71)), 65418#(and (<= main_x 72) (<= 72 main_x)), 65419#(and (<= main_x 73) (<= 73 main_x)), 65420#(and (<= 74 main_x) (<= main_x 74)), 65421#(and (<= main_x 75) (<= 75 main_x)), 65422#(and (<= main_x 76) (<= 76 main_x)), 65423#(and (<= 77 main_x) (<= main_x 77)), 65424#(and (<= 78 main_x) (<= main_x 78)), 65425#(and (<= 79 main_x) (<= main_x 79)), 65426#(and (<= main_x 80) (<= 80 main_x)), 65427#(and (<= 81 main_x) (<= main_x 81)), 65428#(and (<= 82 main_x) (<= main_x 82)), 65429#(and (<= 83 main_x) (<= main_x 83)), 65430#(and (<= main_x 84) (<= 84 main_x)), 65431#(and (<= 85 main_x) (<= main_x 85)), 65432#(and (<= 86 main_x) (<= main_x 86)), 65433#(and (<= 87 main_x) (<= main_x 87)), 65434#(and (<= 88 main_x) (<= main_x 88)), 65435#(and (<= 89 main_x) (<= main_x 89)), 65436#(and (<= 90 main_x) (<= main_x 90)), 65437#(and (<= main_x 91) (<= 91 main_x)), 65438#(and (<= main_x 92) (<= 92 main_x)), 65439#(and (<= 93 main_x) (<= main_x 93)), 65440#(and (<= 94 main_x) (<= main_x 94)), 65441#(and (<= 95 main_x) (<= main_x 95)), 65442#(and (<= 96 main_x) (<= main_x 96)), 65443#(and (<= main_x 97) (<= 97 main_x)), 65444#(and (<= main_x 98) (<= 98 main_x)), 65445#(and (<= 99 main_x) (<= main_x 99)), 65446#(and (<= main_x 100) (<= 100 main_x)), 65447#(and (<= 101 main_x) (<= main_x 101)), 65448#(and (<= main_x 102) (<= 102 main_x)), 65449#(and (<= main_x 103) (<= 103 main_x)), 65450#(and (<= main_x 104) (<= 104 main_x)), 65451#(and (<= main_x 105) (<= 105 main_x)), 65452#(and (<= 106 main_x) (<= main_x 106)), 65453#(and (<= main_x 107) (<= 107 main_x)), 65454#(and (<= 108 main_x) (<= main_x 108)), 65455#(and (<= 109 main_x) (<= main_x 109)), 65456#(and (<= main_x 110) (<= 110 main_x)), 65457#(and (<= main_x 111) (<= 111 main_x)), 65458#(and (<= main_x 112) (<= 112 main_x)), 65459#(and (<= main_x 113) (<= 113 main_x)), 65460#(and (<= 114 main_x) (<= main_x 114)), 65461#(and (<= 115 main_x) (<= main_x 115)), 65462#(and (<= 116 main_x) (<= main_x 116)), 65463#(and (<= 117 main_x) (<= main_x 117)), 65464#(and (<= 118 main_x) (<= main_x 118)), 65465#(and (<= main_x 119) (<= 119 main_x)), 65466#(and (<= main_x 120) (<= 120 main_x)), 65467#(and (<= 121 main_x) (<= main_x 121)), 65468#(and (<= 122 main_x) (<= main_x 122)), 65469#(and (<= main_x 123) (<= 123 main_x)), 65470#(and (<= main_x 124) (<= 124 main_x)), 65471#(and (<= main_x 125) (<= 125 main_x)), 65472#(and (<= 126 main_x) (<= main_x 126)), 65473#(and (<= main_x 127) (<= 127 main_x)), 65474#(and (<= main_x 128) (<= 128 main_x)), 65475#(and (<= 129 main_x) (<= main_x 129)), 65476#(and (<= main_x 130) (<= 130 main_x)), 65477#(and (<= main_x 131) (<= 131 main_x)), 65478#(and (<= 132 main_x) (<= main_x 132)), 65479#(and (<= main_x 133) (<= 133 main_x)), 65480#(and (<= main_x 134) (<= 134 main_x)), 65481#(and (<= main_x 135) (<= 135 main_x)), 65482#(and (<= main_x 136) (<= 136 main_x)), 65483#(and (<= 137 main_x) (<= main_x 137)), 65484#(and (<= main_x 138) (<= 138 main_x)), 65485#(and (<= main_x 139) (<= 139 main_x)), 65486#(and (<= main_x 140) (<= 140 main_x)), 65487#(and (<= main_x 141) (<= 141 main_x)), 65488#(and (<= 142 main_x) (<= main_x 142)), 65489#(and (<= 143 main_x) (<= main_x 143)), 65490#(and (<= main_x 144) (<= 144 main_x)), 65491#(and (<= 145 main_x) (<= main_x 145)), 65492#(and (<= main_x 146) (<= 146 main_x)), 65493#(and (<= main_x 147) (<= 147 main_x)), 65494#(and (<= 148 main_x) (<= main_x 148)), 65495#(and (<= 149 main_x) (<= main_x 149)), 65496#(and (<= 150 main_x) (<= main_x 150)), 65497#(and (<= 151 main_x) (<= main_x 151)), 65498#(and (<= 152 main_x) (<= main_x 152)), 65499#(and (<= main_x 153) (<= 153 main_x)), 65500#(and (<= main_x 154) (<= 154 main_x)), 65501#(and (<= 155 main_x) (<= main_x 155)), 65502#(and (<= main_x 156) (<= 156 main_x)), 65503#(and (<= main_x 157) (<= 157 main_x)), 65504#(or (<= (+ main_x 98) 0) (<= 158 main_x))] [2018-07-23 13:54:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12561 backedges. 0 proven. 12561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:01,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 161 states [2018-07-23 13:54:01,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2018-07-23 13:54:01,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=25441, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:54:01,351 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand 161 states. [2018-07-23 13:54:03,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:03,157 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2018-07-23 13:54:03,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2018-07-23 13:54:03,157 INFO L78 Accepts]: Start accepts. Automaton has 161 states. Word has length 160 [2018-07-23 13:54:03,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:03,158 INFO L225 Difference]: With dead ends: 163 [2018-07-23 13:54:03,158 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 13:54:03,158 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=319, Invalid=25441, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:54:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 13:54:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-07-23 13:54:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:54:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-07-23 13:54:03,164 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 160 [2018-07-23 13:54:03,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:03,164 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-07-23 13:54:03,165 INFO L472 AbstractCegarLoop]: Interpolant automaton has 161 states. [2018-07-23 13:54:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-07-23 13:54:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:54:03,165 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:03,165 INFO L357 BasicCegarLoop]: trace histogram [159, 1, 1] [2018-07-23 13:54:03,165 INFO L414 AbstractCegarLoop]: === Iteration 160 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:03,165 INFO L82 PathProgramCache]: Analyzing trace with hash -561574376, now seen corresponding path program 159 times [2018-07-23 13:54:03,165 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:04,485 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:04,485 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2018-07-23 13:54:04,485 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:04,485 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 13:54:04,486 INFO L185 omatonBuilderFactory]: Interpolants [66305#(and (<= 148 main_x) (<= main_x 148)), 66304#(and (<= main_x 147) (<= 147 main_x)), 66307#(and (<= 150 main_x) (<= main_x 150)), 66306#(and (<= 149 main_x) (<= main_x 149)), 66309#(and (<= 152 main_x) (<= main_x 152)), 66308#(and (<= 151 main_x) (<= main_x 151)), 66311#(and (<= main_x 154) (<= 154 main_x)), 66310#(and (<= main_x 153) (<= 153 main_x)), 66313#(and (<= main_x 156) (<= 156 main_x)), 66312#(and (<= 155 main_x) (<= main_x 155)), 66315#(and (<= main_x 158) (<= 158 main_x)), 66314#(and (<= main_x 157) (<= 157 main_x)), 66316#(or (<= (+ main_x 97) 0) (<= 159 main_x)), 66155#true, 66157#(and (<= main_x 0) (<= 0 main_x)), 66156#false, 66159#(and (<= 2 main_x) (<= main_x 2)), 66158#(and (<= 1 main_x) (<= main_x 1)), 66161#(and (<= main_x 4) (<= 4 main_x)), 66160#(and (<= 3 main_x) (<= main_x 3)), 66163#(and (<= 6 main_x) (<= main_x 6)), 66162#(and (<= 5 main_x) (<= main_x 5)), 66165#(and (<= main_x 8) (<= 8 main_x)), 66164#(and (<= main_x 7) (<= 7 main_x)), 66167#(and (<= main_x 10) (<= 10 main_x)), 66166#(and (<= 9 main_x) (<= main_x 9)), 66169#(and (<= 12 main_x) (<= main_x 12)), 66168#(and (<= 11 main_x) (<= main_x 11)), 66171#(and (<= 14 main_x) (<= main_x 14)), 66170#(and (<= 13 main_x) (<= main_x 13)), 66173#(and (<= main_x 16) (<= 16 main_x)), 66172#(and (<= 15 main_x) (<= main_x 15)), 66175#(and (<= main_x 18) (<= 18 main_x)), 66174#(and (<= 17 main_x) (<= main_x 17)), 66177#(and (<= 20 main_x) (<= main_x 20)), 66176#(and (<= main_x 19) (<= 19 main_x)), 66179#(and (<= main_x 22) (<= 22 main_x)), 66178#(and (<= 21 main_x) (<= main_x 21)), 66181#(and (<= main_x 24) (<= 24 main_x)), 66180#(and (<= 23 main_x) (<= main_x 23)), 66183#(and (<= main_x 26) (<= 26 main_x)), 66182#(and (<= main_x 25) (<= 25 main_x)), 66185#(and (<= main_x 28) (<= 28 main_x)), 66184#(and (<= main_x 27) (<= 27 main_x)), 66187#(and (<= 30 main_x) (<= main_x 30)), 66186#(and (<= main_x 29) (<= 29 main_x)), 66189#(and (<= 32 main_x) (<= main_x 32)), 66188#(and (<= 31 main_x) (<= main_x 31)), 66191#(and (<= 34 main_x) (<= main_x 34)), 66190#(and (<= main_x 33) (<= 33 main_x)), 66193#(and (<= main_x 36) (<= 36 main_x)), 66192#(and (<= main_x 35) (<= 35 main_x)), 66195#(and (<= 38 main_x) (<= main_x 38)), 66194#(and (<= 37 main_x) (<= main_x 37)), 66197#(and (<= main_x 40) (<= 40 main_x)), 66196#(and (<= 39 main_x) (<= main_x 39)), 66199#(and (<= 42 main_x) (<= main_x 42)), 66198#(and (<= 41 main_x) (<= main_x 41)), 66201#(and (<= main_x 44) (<= 44 main_x)), 66200#(and (<= 43 main_x) (<= main_x 43)), 66203#(and (<= 46 main_x) (<= main_x 46)), 66202#(and (<= 45 main_x) (<= main_x 45)), 66205#(and (<= 48 main_x) (<= main_x 48)), 66204#(and (<= 47 main_x) (<= main_x 47)), 66207#(and (<= main_x 50) (<= 50 main_x)), 66206#(and (<= main_x 49) (<= 49 main_x)), 66209#(and (<= 52 main_x) (<= main_x 52)), 66208#(and (<= main_x 51) (<= 51 main_x)), 66211#(and (<= 54 main_x) (<= main_x 54)), 66210#(and (<= main_x 53) (<= 53 main_x)), 66213#(and (<= main_x 56) (<= 56 main_x)), 66212#(and (<= 55 main_x) (<= main_x 55)), 66215#(and (<= 58 main_x) (<= main_x 58)), 66214#(and (<= main_x 57) (<= 57 main_x)), 66217#(and (<= main_x 60) (<= 60 main_x)), 66216#(and (<= 59 main_x) (<= main_x 59)), 66219#(and (<= main_x 62) (<= 62 main_x)), 66218#(and (<= main_x 61) (<= 61 main_x)), 66221#(and (<= 64 main_x) (<= main_x 64)), 66220#(and (<= 63 main_x) (<= main_x 63)), 66223#(and (<= main_x 66) (<= 66 main_x)), 66222#(and (<= main_x 65) (<= 65 main_x)), 66225#(and (<= main_x 68) (<= 68 main_x)), 66224#(and (<= 67 main_x) (<= main_x 67)), 66227#(and (<= main_x 70) (<= 70 main_x)), 66226#(and (<= 69 main_x) (<= main_x 69)), 66229#(and (<= main_x 72) (<= 72 main_x)), 66228#(and (<= 71 main_x) (<= main_x 71)), 66231#(and (<= 74 main_x) (<= main_x 74)), 66230#(and (<= main_x 73) (<= 73 main_x)), 66233#(and (<= main_x 76) (<= 76 main_x)), 66232#(and (<= main_x 75) (<= 75 main_x)), 66235#(and (<= 78 main_x) (<= main_x 78)), 66234#(and (<= 77 main_x) (<= main_x 77)), 66237#(and (<= main_x 80) (<= 80 main_x)), 66236#(and (<= 79 main_x) (<= main_x 79)), 66239#(and (<= 82 main_x) (<= main_x 82)), 66238#(and (<= 81 main_x) (<= main_x 81)), 66241#(and (<= main_x 84) (<= 84 main_x)), 66240#(and (<= 83 main_x) (<= main_x 83)), 66243#(and (<= 86 main_x) (<= main_x 86)), 66242#(and (<= 85 main_x) (<= main_x 85)), 66245#(and (<= 88 main_x) (<= main_x 88)), 66244#(and (<= 87 main_x) (<= main_x 87)), 66247#(and (<= 90 main_x) (<= main_x 90)), 66246#(and (<= 89 main_x) (<= main_x 89)), 66249#(and (<= main_x 92) (<= 92 main_x)), 66248#(and (<= main_x 91) (<= 91 main_x)), 66251#(and (<= 94 main_x) (<= main_x 94)), 66250#(and (<= 93 main_x) (<= main_x 93)), 66253#(and (<= 96 main_x) (<= main_x 96)), 66252#(and (<= 95 main_x) (<= main_x 95)), 66255#(and (<= main_x 98) (<= 98 main_x)), 66254#(and (<= main_x 97) (<= 97 main_x)), 66257#(and (<= main_x 100) (<= 100 main_x)), 66256#(and (<= 99 main_x) (<= main_x 99)), 66259#(and (<= main_x 102) (<= 102 main_x)), 66258#(and (<= 101 main_x) (<= main_x 101)), 66261#(and (<= main_x 104) (<= 104 main_x)), 66260#(and (<= main_x 103) (<= 103 main_x)), 66263#(and (<= 106 main_x) (<= main_x 106)), 66262#(and (<= main_x 105) (<= 105 main_x)), 66265#(and (<= 108 main_x) (<= main_x 108)), 66264#(and (<= main_x 107) (<= 107 main_x)), 66267#(and (<= main_x 110) (<= 110 main_x)), 66266#(and (<= 109 main_x) (<= main_x 109)), 66269#(and (<= main_x 112) (<= 112 main_x)), 66268#(and (<= main_x 111) (<= 111 main_x)), 66271#(and (<= 114 main_x) (<= main_x 114)), 66270#(and (<= main_x 113) (<= 113 main_x)), 66273#(and (<= 116 main_x) (<= main_x 116)), 66272#(and (<= 115 main_x) (<= main_x 115)), 66275#(and (<= 118 main_x) (<= main_x 118)), 66274#(and (<= 117 main_x) (<= main_x 117)), 66277#(and (<= main_x 120) (<= 120 main_x)), 66276#(and (<= main_x 119) (<= 119 main_x)), 66279#(and (<= 122 main_x) (<= main_x 122)), 66278#(and (<= 121 main_x) (<= main_x 121)), 66281#(and (<= main_x 124) (<= 124 main_x)), 66280#(and (<= main_x 123) (<= 123 main_x)), 66283#(and (<= 126 main_x) (<= main_x 126)), 66282#(and (<= main_x 125) (<= 125 main_x)), 66285#(and (<= main_x 128) (<= 128 main_x)), 66284#(and (<= main_x 127) (<= 127 main_x)), 66287#(and (<= main_x 130) (<= 130 main_x)), 66286#(and (<= 129 main_x) (<= main_x 129)), 66289#(and (<= 132 main_x) (<= main_x 132)), 66288#(and (<= main_x 131) (<= 131 main_x)), 66291#(and (<= main_x 134) (<= 134 main_x)), 66290#(and (<= main_x 133) (<= 133 main_x)), 66293#(and (<= main_x 136) (<= 136 main_x)), 66292#(and (<= main_x 135) (<= 135 main_x)), 66295#(and (<= main_x 138) (<= 138 main_x)), 66294#(and (<= 137 main_x) (<= main_x 137)), 66297#(and (<= main_x 140) (<= 140 main_x)), 66296#(and (<= main_x 139) (<= 139 main_x)), 66299#(and (<= 142 main_x) (<= main_x 142)), 66298#(and (<= main_x 141) (<= 141 main_x)), 66301#(and (<= main_x 144) (<= 144 main_x)), 66300#(and (<= 143 main_x) (<= main_x 143)), 66303#(and (<= main_x 146) (<= 146 main_x)), 66302#(and (<= 145 main_x) (<= main_x 145))] [2018-07-23 13:54:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 12720 backedges. 0 proven. 12720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:04,487 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:54:04,487 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:54:04,488 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=25761, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:54:04,488 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 162 states. [2018-07-23 13:54:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:06,293 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2018-07-23 13:54:06,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:54:06,293 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 161 [2018-07-23 13:54:06,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:06,293 INFO L225 Difference]: With dead ends: 164 [2018-07-23 13:54:06,294 INFO L226 Difference]: Without dead ends: 163 [2018-07-23 13:54:06,295 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=321, Invalid=25761, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:54:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-07-23 13:54:06,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2018-07-23 13:54:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-07-23 13:54:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2018-07-23 13:54:06,301 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 161 [2018-07-23 13:54:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:06,301 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 163 transitions. [2018-07-23 13:54:06,301 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:54:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 163 transitions. [2018-07-23 13:54:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-07-23 13:54:06,302 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:06,302 INFO L357 BasicCegarLoop]: trace histogram [160, 1, 1] [2018-07-23 13:54:06,302 INFO L414 AbstractCegarLoop]: === Iteration 161 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:06,302 INFO L82 PathProgramCache]: Analyzing trace with hash -228936237, now seen corresponding path program 160 times [2018-07-23 13:54:06,302 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:07,681 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:07,681 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:54:07,681 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:07,681 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 13:54:07,681 INFO L185 omatonBuilderFactory]: Interpolants [67073#(and (<= main_x 100) (<= 100 main_x)), 67072#(and (<= 99 main_x) (<= main_x 99)), 67075#(and (<= main_x 102) (<= 102 main_x)), 67074#(and (<= 101 main_x) (<= main_x 101)), 67077#(and (<= main_x 104) (<= 104 main_x)), 67076#(and (<= main_x 103) (<= 103 main_x)), 67079#(and (<= 106 main_x) (<= main_x 106)), 67078#(and (<= main_x 105) (<= 105 main_x)), 67081#(and (<= 108 main_x) (<= main_x 108)), 67080#(and (<= main_x 107) (<= 107 main_x)), 67083#(and (<= main_x 110) (<= 110 main_x)), 67082#(and (<= 109 main_x) (<= main_x 109)), 67085#(and (<= main_x 112) (<= 112 main_x)), 67084#(and (<= main_x 111) (<= 111 main_x)), 67087#(and (<= 114 main_x) (<= main_x 114)), 67086#(and (<= main_x 113) (<= 113 main_x)), 67089#(and (<= 116 main_x) (<= main_x 116)), 67088#(and (<= 115 main_x) (<= main_x 115)), 67091#(and (<= 118 main_x) (<= main_x 118)), 67090#(and (<= 117 main_x) (<= main_x 117)), 67093#(and (<= main_x 120) (<= 120 main_x)), 67092#(and (<= main_x 119) (<= 119 main_x)), 67095#(and (<= 122 main_x) (<= main_x 122)), 67094#(and (<= 121 main_x) (<= main_x 121)), 67097#(and (<= main_x 124) (<= 124 main_x)), 67096#(and (<= main_x 123) (<= 123 main_x)), 67099#(and (<= 126 main_x) (<= main_x 126)), 67098#(and (<= main_x 125) (<= 125 main_x)), 67101#(and (<= main_x 128) (<= 128 main_x)), 67100#(and (<= main_x 127) (<= 127 main_x)), 67103#(and (<= main_x 130) (<= 130 main_x)), 67102#(and (<= 129 main_x) (<= main_x 129)), 67105#(and (<= 132 main_x) (<= main_x 132)), 67104#(and (<= main_x 131) (<= 131 main_x)), 67107#(and (<= main_x 134) (<= 134 main_x)), 67106#(and (<= main_x 133) (<= 133 main_x)), 67109#(and (<= main_x 136) (<= 136 main_x)), 67108#(and (<= main_x 135) (<= 135 main_x)), 67111#(and (<= main_x 138) (<= 138 main_x)), 67110#(and (<= 137 main_x) (<= main_x 137)), 67113#(and (<= main_x 140) (<= 140 main_x)), 67112#(and (<= main_x 139) (<= 139 main_x)), 67115#(and (<= 142 main_x) (<= main_x 142)), 67114#(and (<= main_x 141) (<= 141 main_x)), 67117#(and (<= main_x 144) (<= 144 main_x)), 67116#(and (<= 143 main_x) (<= main_x 143)), 67119#(and (<= main_x 146) (<= 146 main_x)), 67118#(and (<= 145 main_x) (<= main_x 145)), 67121#(and (<= 148 main_x) (<= main_x 148)), 67120#(and (<= main_x 147) (<= 147 main_x)), 67123#(and (<= 150 main_x) (<= main_x 150)), 67122#(and (<= 149 main_x) (<= main_x 149)), 67125#(and (<= 152 main_x) (<= main_x 152)), 67124#(and (<= 151 main_x) (<= main_x 151)), 67127#(and (<= main_x 154) (<= 154 main_x)), 67126#(and (<= main_x 153) (<= 153 main_x)), 67129#(and (<= main_x 156) (<= 156 main_x)), 67128#(and (<= 155 main_x) (<= main_x 155)), 67131#(and (<= main_x 158) (<= 158 main_x)), 67130#(and (<= main_x 157) (<= 157 main_x)), 67133#(or (<= 160 main_x) (<= (+ main_x 96) 0)), 67132#(and (<= 159 main_x) (<= main_x 159)), 66971#true, 66973#(and (<= main_x 0) (<= 0 main_x)), 66972#false, 66975#(and (<= 2 main_x) (<= main_x 2)), 66974#(and (<= 1 main_x) (<= main_x 1)), 66977#(and (<= main_x 4) (<= 4 main_x)), 66976#(and (<= 3 main_x) (<= main_x 3)), 66979#(and (<= 6 main_x) (<= main_x 6)), 66978#(and (<= 5 main_x) (<= main_x 5)), 66981#(and (<= main_x 8) (<= 8 main_x)), 66980#(and (<= main_x 7) (<= 7 main_x)), 66983#(and (<= main_x 10) (<= 10 main_x)), 66982#(and (<= 9 main_x) (<= main_x 9)), 66985#(and (<= 12 main_x) (<= main_x 12)), 66984#(and (<= 11 main_x) (<= main_x 11)), 66987#(and (<= 14 main_x) (<= main_x 14)), 66986#(and (<= 13 main_x) (<= main_x 13)), 66989#(and (<= main_x 16) (<= 16 main_x)), 66988#(and (<= 15 main_x) (<= main_x 15)), 66991#(and (<= main_x 18) (<= 18 main_x)), 66990#(and (<= 17 main_x) (<= main_x 17)), 66993#(and (<= 20 main_x) (<= main_x 20)), 66992#(and (<= main_x 19) (<= 19 main_x)), 66995#(and (<= main_x 22) (<= 22 main_x)), 66994#(and (<= 21 main_x) (<= main_x 21)), 66997#(and (<= main_x 24) (<= 24 main_x)), 66996#(and (<= 23 main_x) (<= main_x 23)), 66999#(and (<= main_x 26) (<= 26 main_x)), 66998#(and (<= main_x 25) (<= 25 main_x)), 67001#(and (<= main_x 28) (<= 28 main_x)), 67000#(and (<= main_x 27) (<= 27 main_x)), 67003#(and (<= 30 main_x) (<= main_x 30)), 67002#(and (<= main_x 29) (<= 29 main_x)), 67005#(and (<= 32 main_x) (<= main_x 32)), 67004#(and (<= 31 main_x) (<= main_x 31)), 67007#(and (<= 34 main_x) (<= main_x 34)), 67006#(and (<= main_x 33) (<= 33 main_x)), 67009#(and (<= main_x 36) (<= 36 main_x)), 67008#(and (<= main_x 35) (<= 35 main_x)), 67011#(and (<= 38 main_x) (<= main_x 38)), 67010#(and (<= 37 main_x) (<= main_x 37)), 67013#(and (<= main_x 40) (<= 40 main_x)), 67012#(and (<= 39 main_x) (<= main_x 39)), 67015#(and (<= 42 main_x) (<= main_x 42)), 67014#(and (<= 41 main_x) (<= main_x 41)), 67017#(and (<= main_x 44) (<= 44 main_x)), 67016#(and (<= 43 main_x) (<= main_x 43)), 67019#(and (<= 46 main_x) (<= main_x 46)), 67018#(and (<= 45 main_x) (<= main_x 45)), 67021#(and (<= 48 main_x) (<= main_x 48)), 67020#(and (<= 47 main_x) (<= main_x 47)), 67023#(and (<= main_x 50) (<= 50 main_x)), 67022#(and (<= main_x 49) (<= 49 main_x)), 67025#(and (<= 52 main_x) (<= main_x 52)), 67024#(and (<= main_x 51) (<= 51 main_x)), 67027#(and (<= 54 main_x) (<= main_x 54)), 67026#(and (<= main_x 53) (<= 53 main_x)), 67029#(and (<= main_x 56) (<= 56 main_x)), 67028#(and (<= 55 main_x) (<= main_x 55)), 67031#(and (<= 58 main_x) (<= main_x 58)), 67030#(and (<= main_x 57) (<= 57 main_x)), 67033#(and (<= main_x 60) (<= 60 main_x)), 67032#(and (<= 59 main_x) (<= main_x 59)), 67035#(and (<= main_x 62) (<= 62 main_x)), 67034#(and (<= main_x 61) (<= 61 main_x)), 67037#(and (<= 64 main_x) (<= main_x 64)), 67036#(and (<= 63 main_x) (<= main_x 63)), 67039#(and (<= main_x 66) (<= 66 main_x)), 67038#(and (<= main_x 65) (<= 65 main_x)), 67041#(and (<= main_x 68) (<= 68 main_x)), 67040#(and (<= 67 main_x) (<= main_x 67)), 67043#(and (<= main_x 70) (<= 70 main_x)), 67042#(and (<= 69 main_x) (<= main_x 69)), 67045#(and (<= main_x 72) (<= 72 main_x)), 67044#(and (<= 71 main_x) (<= main_x 71)), 67047#(and (<= 74 main_x) (<= main_x 74)), 67046#(and (<= main_x 73) (<= 73 main_x)), 67049#(and (<= main_x 76) (<= 76 main_x)), 67048#(and (<= main_x 75) (<= 75 main_x)), 67051#(and (<= 78 main_x) (<= main_x 78)), 67050#(and (<= 77 main_x) (<= main_x 77)), 67053#(and (<= main_x 80) (<= 80 main_x)), 67052#(and (<= 79 main_x) (<= main_x 79)), 67055#(and (<= 82 main_x) (<= main_x 82)), 67054#(and (<= 81 main_x) (<= main_x 81)), 67057#(and (<= main_x 84) (<= 84 main_x)), 67056#(and (<= 83 main_x) (<= main_x 83)), 67059#(and (<= 86 main_x) (<= main_x 86)), 67058#(and (<= 85 main_x) (<= main_x 85)), 67061#(and (<= 88 main_x) (<= main_x 88)), 67060#(and (<= 87 main_x) (<= main_x 87)), 67063#(and (<= 90 main_x) (<= main_x 90)), 67062#(and (<= 89 main_x) (<= main_x 89)), 67065#(and (<= main_x 92) (<= 92 main_x)), 67064#(and (<= main_x 91) (<= 91 main_x)), 67067#(and (<= 94 main_x) (<= main_x 94)), 67066#(and (<= 93 main_x) (<= main_x 93)), 67069#(and (<= 96 main_x) (<= main_x 96)), 67068#(and (<= 95 main_x) (<= main_x 95)), 67071#(and (<= main_x 98) (<= 98 main_x)), 67070#(and (<= main_x 97) (<= 97 main_x))] [2018-07-23 13:54:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12880 backedges. 0 proven. 12880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:07,682 INFO L450 AbstractCegarLoop]: Interpolant automaton has 163 states [2018-07-23 13:54:07,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2018-07-23 13:54:07,683 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=26083, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:54:07,683 INFO L87 Difference]: Start difference. First operand 163 states and 163 transitions. Second operand 163 states. [2018-07-23 13:54:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:09,472 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-07-23 13:54:09,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-07-23 13:54:09,472 INFO L78 Accepts]: Start accepts. Automaton has 163 states. Word has length 162 [2018-07-23 13:54:09,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:09,472 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:54:09,472 INFO L226 Difference]: Without dead ends: 164 [2018-07-23 13:54:09,474 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=323, Invalid=26083, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:54:09,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-07-23 13:54:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-07-23 13:54:09,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-07-23 13:54:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2018-07-23 13:54:09,483 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 162 [2018-07-23 13:54:09,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:09,483 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2018-07-23 13:54:09,483 INFO L472 AbstractCegarLoop]: Interpolant automaton has 163 states. [2018-07-23 13:54:09,483 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2018-07-23 13:54:09,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-23 13:54:09,484 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:09,484 INFO L357 BasicCegarLoop]: trace histogram [161, 1, 1] [2018-07-23 13:54:09,484 INFO L414 AbstractCegarLoop]: === Iteration 162 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:09,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1492911480, now seen corresponding path program 161 times [2018-07-23 13:54:09,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:10,866 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:10,866 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2018-07-23 13:54:10,867 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:10,867 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 13:54:10,867 INFO L185 omatonBuilderFactory]: Interpolants [67841#(and (<= 47 main_x) (<= main_x 47)), 67840#(and (<= 46 main_x) (<= main_x 46)), 67843#(and (<= main_x 49) (<= 49 main_x)), 67842#(and (<= 48 main_x) (<= main_x 48)), 67845#(and (<= main_x 51) (<= 51 main_x)), 67844#(and (<= main_x 50) (<= 50 main_x)), 67847#(and (<= main_x 53) (<= 53 main_x)), 67846#(and (<= 52 main_x) (<= main_x 52)), 67849#(and (<= 55 main_x) (<= main_x 55)), 67848#(and (<= 54 main_x) (<= main_x 54)), 67851#(and (<= main_x 57) (<= 57 main_x)), 67850#(and (<= main_x 56) (<= 56 main_x)), 67853#(and (<= 59 main_x) (<= main_x 59)), 67852#(and (<= 58 main_x) (<= main_x 58)), 67855#(and (<= main_x 61) (<= 61 main_x)), 67854#(and (<= main_x 60) (<= 60 main_x)), 67857#(and (<= 63 main_x) (<= main_x 63)), 67856#(and (<= main_x 62) (<= 62 main_x)), 67859#(and (<= main_x 65) (<= 65 main_x)), 67858#(and (<= 64 main_x) (<= main_x 64)), 67861#(and (<= 67 main_x) (<= main_x 67)), 67860#(and (<= main_x 66) (<= 66 main_x)), 67863#(and (<= 69 main_x) (<= main_x 69)), 67862#(and (<= main_x 68) (<= 68 main_x)), 67865#(and (<= 71 main_x) (<= main_x 71)), 67864#(and (<= main_x 70) (<= 70 main_x)), 67867#(and (<= main_x 73) (<= 73 main_x)), 67866#(and (<= main_x 72) (<= 72 main_x)), 67869#(and (<= main_x 75) (<= 75 main_x)), 67868#(and (<= 74 main_x) (<= main_x 74)), 67871#(and (<= 77 main_x) (<= main_x 77)), 67870#(and (<= main_x 76) (<= 76 main_x)), 67873#(and (<= 79 main_x) (<= main_x 79)), 67872#(and (<= 78 main_x) (<= main_x 78)), 67875#(and (<= 81 main_x) (<= main_x 81)), 67874#(and (<= main_x 80) (<= 80 main_x)), 67877#(and (<= 83 main_x) (<= main_x 83)), 67876#(and (<= 82 main_x) (<= main_x 82)), 67879#(and (<= 85 main_x) (<= main_x 85)), 67878#(and (<= main_x 84) (<= 84 main_x)), 67881#(and (<= 87 main_x) (<= main_x 87)), 67880#(and (<= 86 main_x) (<= main_x 86)), 67883#(and (<= 89 main_x) (<= main_x 89)), 67882#(and (<= 88 main_x) (<= main_x 88)), 67885#(and (<= main_x 91) (<= 91 main_x)), 67884#(and (<= 90 main_x) (<= main_x 90)), 67887#(and (<= 93 main_x) (<= main_x 93)), 67886#(and (<= main_x 92) (<= 92 main_x)), 67889#(and (<= 95 main_x) (<= main_x 95)), 67888#(and (<= 94 main_x) (<= main_x 94)), 67891#(and (<= main_x 97) (<= 97 main_x)), 67890#(and (<= 96 main_x) (<= main_x 96)), 67893#(and (<= 99 main_x) (<= main_x 99)), 67892#(and (<= main_x 98) (<= 98 main_x)), 67895#(and (<= 101 main_x) (<= main_x 101)), 67894#(and (<= main_x 100) (<= 100 main_x)), 67897#(and (<= main_x 103) (<= 103 main_x)), 67896#(and (<= main_x 102) (<= 102 main_x)), 67899#(and (<= main_x 105) (<= 105 main_x)), 67898#(and (<= main_x 104) (<= 104 main_x)), 67901#(and (<= main_x 107) (<= 107 main_x)), 67900#(and (<= 106 main_x) (<= main_x 106)), 67903#(and (<= 109 main_x) (<= main_x 109)), 67902#(and (<= 108 main_x) (<= main_x 108)), 67905#(and (<= main_x 111) (<= 111 main_x)), 67904#(and (<= main_x 110) (<= 110 main_x)), 67907#(and (<= main_x 113) (<= 113 main_x)), 67906#(and (<= main_x 112) (<= 112 main_x)), 67909#(and (<= 115 main_x) (<= main_x 115)), 67908#(and (<= 114 main_x) (<= main_x 114)), 67911#(and (<= 117 main_x) (<= main_x 117)), 67910#(and (<= 116 main_x) (<= main_x 116)), 67913#(and (<= main_x 119) (<= 119 main_x)), 67912#(and (<= 118 main_x) (<= main_x 118)), 67915#(and (<= 121 main_x) (<= main_x 121)), 67914#(and (<= main_x 120) (<= 120 main_x)), 67917#(and (<= main_x 123) (<= 123 main_x)), 67916#(and (<= 122 main_x) (<= main_x 122)), 67919#(and (<= main_x 125) (<= 125 main_x)), 67918#(and (<= main_x 124) (<= 124 main_x)), 67921#(and (<= main_x 127) (<= 127 main_x)), 67920#(and (<= 126 main_x) (<= main_x 126)), 67923#(and (<= 129 main_x) (<= main_x 129)), 67922#(and (<= main_x 128) (<= 128 main_x)), 67925#(and (<= main_x 131) (<= 131 main_x)), 67924#(and (<= main_x 130) (<= 130 main_x)), 67927#(and (<= main_x 133) (<= 133 main_x)), 67926#(and (<= 132 main_x) (<= main_x 132)), 67929#(and (<= main_x 135) (<= 135 main_x)), 67928#(and (<= main_x 134) (<= 134 main_x)), 67931#(and (<= 137 main_x) (<= main_x 137)), 67930#(and (<= main_x 136) (<= 136 main_x)), 67933#(and (<= main_x 139) (<= 139 main_x)), 67932#(and (<= main_x 138) (<= 138 main_x)), 67935#(and (<= main_x 141) (<= 141 main_x)), 67934#(and (<= main_x 140) (<= 140 main_x)), 67937#(and (<= 143 main_x) (<= main_x 143)), 67936#(and (<= 142 main_x) (<= main_x 142)), 67939#(and (<= 145 main_x) (<= main_x 145)), 67938#(and (<= main_x 144) (<= 144 main_x)), 67941#(and (<= main_x 147) (<= 147 main_x)), 67940#(and (<= main_x 146) (<= 146 main_x)), 67943#(and (<= 149 main_x) (<= main_x 149)), 67942#(and (<= 148 main_x) (<= main_x 148)), 67945#(and (<= 151 main_x) (<= main_x 151)), 67944#(and (<= 150 main_x) (<= main_x 150)), 67947#(and (<= main_x 153) (<= 153 main_x)), 67946#(and (<= 152 main_x) (<= main_x 152)), 67949#(and (<= 155 main_x) (<= main_x 155)), 67948#(and (<= main_x 154) (<= 154 main_x)), 67951#(and (<= main_x 157) (<= 157 main_x)), 67950#(and (<= main_x 156) (<= 156 main_x)), 67953#(and (<= 159 main_x) (<= main_x 159)), 67952#(and (<= main_x 158) (<= 158 main_x)), 67955#(or (<= (+ main_x 95) 0) (<= 161 main_x)), 67954#(and (<= 160 main_x) (<= main_x 160)), 67793#false, 67792#true, 67795#(and (<= 1 main_x) (<= main_x 1)), 67794#(and (<= main_x 0) (<= 0 main_x)), 67797#(and (<= 3 main_x) (<= main_x 3)), 67796#(and (<= 2 main_x) (<= main_x 2)), 67799#(and (<= 5 main_x) (<= main_x 5)), 67798#(and (<= main_x 4) (<= 4 main_x)), 67801#(and (<= main_x 7) (<= 7 main_x)), 67800#(and (<= 6 main_x) (<= main_x 6)), 67803#(and (<= 9 main_x) (<= main_x 9)), 67802#(and (<= main_x 8) (<= 8 main_x)), 67805#(and (<= 11 main_x) (<= main_x 11)), 67804#(and (<= main_x 10) (<= 10 main_x)), 67807#(and (<= 13 main_x) (<= main_x 13)), 67806#(and (<= 12 main_x) (<= main_x 12)), 67809#(and (<= 15 main_x) (<= main_x 15)), 67808#(and (<= 14 main_x) (<= main_x 14)), 67811#(and (<= 17 main_x) (<= main_x 17)), 67810#(and (<= main_x 16) (<= 16 main_x)), 67813#(and (<= main_x 19) (<= 19 main_x)), 67812#(and (<= main_x 18) (<= 18 main_x)), 67815#(and (<= 21 main_x) (<= main_x 21)), 67814#(and (<= 20 main_x) (<= main_x 20)), 67817#(and (<= 23 main_x) (<= main_x 23)), 67816#(and (<= main_x 22) (<= 22 main_x)), 67819#(and (<= main_x 25) (<= 25 main_x)), 67818#(and (<= main_x 24) (<= 24 main_x)), 67821#(and (<= main_x 27) (<= 27 main_x)), 67820#(and (<= main_x 26) (<= 26 main_x)), 67823#(and (<= main_x 29) (<= 29 main_x)), 67822#(and (<= main_x 28) (<= 28 main_x)), 67825#(and (<= 31 main_x) (<= main_x 31)), 67824#(and (<= 30 main_x) (<= main_x 30)), 67827#(and (<= main_x 33) (<= 33 main_x)), 67826#(and (<= 32 main_x) (<= main_x 32)), 67829#(and (<= main_x 35) (<= 35 main_x)), 67828#(and (<= 34 main_x) (<= main_x 34)), 67831#(and (<= 37 main_x) (<= main_x 37)), 67830#(and (<= main_x 36) (<= 36 main_x)), 67833#(and (<= 39 main_x) (<= main_x 39)), 67832#(and (<= 38 main_x) (<= main_x 38)), 67835#(and (<= 41 main_x) (<= main_x 41)), 67834#(and (<= main_x 40) (<= 40 main_x)), 67837#(and (<= 43 main_x) (<= main_x 43)), 67836#(and (<= 42 main_x) (<= main_x 42)), 67839#(and (<= 45 main_x) (<= main_x 45)), 67838#(and (<= main_x 44) (<= 44 main_x))] [2018-07-23 13:54:10,868 INFO L134 CoverageAnalysis]: Checked inductivity of 13041 backedges. 0 proven. 13041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:10,868 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:54:10,868 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:54:10,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=26407, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:54:10,869 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand 164 states. [2018-07-23 13:54:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:12,699 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2018-07-23 13:54:12,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:54:12,699 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 163 [2018-07-23 13:54:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:12,700 INFO L225 Difference]: With dead ends: 166 [2018-07-23 13:54:12,700 INFO L226 Difference]: Without dead ends: 165 [2018-07-23 13:54:12,701 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=325, Invalid=26407, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:54:12,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-07-23 13:54:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-07-23 13:54:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-07-23 13:54:12,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2018-07-23 13:54:12,707 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 163 [2018-07-23 13:54:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:12,707 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2018-07-23 13:54:12,707 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:54:12,707 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2018-07-23 13:54:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-23 13:54:12,707 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:12,708 INFO L357 BasicCegarLoop]: trace histogram [162, 1, 1] [2018-07-23 13:54:12,708 INFO L414 AbstractCegarLoop]: === Iteration 163 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:12,708 INFO L82 PathProgramCache]: Analyzing trace with hash -964384141, now seen corresponding path program 162 times [2018-07-23 13:54:12,708 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:14,187 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:14,188 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:14,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:54:14,188 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:14,188 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 13:54:14,188 INFO L185 omatonBuilderFactory]: Interpolants [68619#false, 68618#true, 68621#(and (<= 1 main_x) (<= main_x 1)), 68620#(and (<= main_x 0) (<= 0 main_x)), 68623#(and (<= 3 main_x) (<= main_x 3)), 68622#(and (<= 2 main_x) (<= main_x 2)), 68625#(and (<= 5 main_x) (<= main_x 5)), 68624#(and (<= main_x 4) (<= 4 main_x)), 68627#(and (<= main_x 7) (<= 7 main_x)), 68626#(and (<= 6 main_x) (<= main_x 6)), 68629#(and (<= 9 main_x) (<= main_x 9)), 68628#(and (<= main_x 8) (<= 8 main_x)), 68631#(and (<= 11 main_x) (<= main_x 11)), 68630#(and (<= main_x 10) (<= 10 main_x)), 68633#(and (<= 13 main_x) (<= main_x 13)), 68632#(and (<= 12 main_x) (<= main_x 12)), 68635#(and (<= 15 main_x) (<= main_x 15)), 68634#(and (<= 14 main_x) (<= main_x 14)), 68637#(and (<= 17 main_x) (<= main_x 17)), 68636#(and (<= main_x 16) (<= 16 main_x)), 68639#(and (<= main_x 19) (<= 19 main_x)), 68638#(and (<= main_x 18) (<= 18 main_x)), 68641#(and (<= 21 main_x) (<= main_x 21)), 68640#(and (<= 20 main_x) (<= main_x 20)), 68643#(and (<= 23 main_x) (<= main_x 23)), 68642#(and (<= main_x 22) (<= 22 main_x)), 68645#(and (<= main_x 25) (<= 25 main_x)), 68644#(and (<= main_x 24) (<= 24 main_x)), 68647#(and (<= main_x 27) (<= 27 main_x)), 68646#(and (<= main_x 26) (<= 26 main_x)), 68649#(and (<= main_x 29) (<= 29 main_x)), 68648#(and (<= main_x 28) (<= 28 main_x)), 68651#(and (<= 31 main_x) (<= main_x 31)), 68650#(and (<= 30 main_x) (<= main_x 30)), 68653#(and (<= main_x 33) (<= 33 main_x)), 68652#(and (<= 32 main_x) (<= main_x 32)), 68655#(and (<= main_x 35) (<= 35 main_x)), 68654#(and (<= 34 main_x) (<= main_x 34)), 68657#(and (<= 37 main_x) (<= main_x 37)), 68656#(and (<= main_x 36) (<= 36 main_x)), 68659#(and (<= 39 main_x) (<= main_x 39)), 68658#(and (<= 38 main_x) (<= main_x 38)), 68661#(and (<= 41 main_x) (<= main_x 41)), 68660#(and (<= main_x 40) (<= 40 main_x)), 68663#(and (<= 43 main_x) (<= main_x 43)), 68662#(and (<= 42 main_x) (<= main_x 42)), 68665#(and (<= 45 main_x) (<= main_x 45)), 68664#(and (<= main_x 44) (<= 44 main_x)), 68667#(and (<= 47 main_x) (<= main_x 47)), 68666#(and (<= 46 main_x) (<= main_x 46)), 68669#(and (<= main_x 49) (<= 49 main_x)), 68668#(and (<= 48 main_x) (<= main_x 48)), 68671#(and (<= main_x 51) (<= 51 main_x)), 68670#(and (<= main_x 50) (<= 50 main_x)), 68673#(and (<= main_x 53) (<= 53 main_x)), 68672#(and (<= 52 main_x) (<= main_x 52)), 68675#(and (<= 55 main_x) (<= main_x 55)), 68674#(and (<= 54 main_x) (<= main_x 54)), 68677#(and (<= main_x 57) (<= 57 main_x)), 68676#(and (<= main_x 56) (<= 56 main_x)), 68679#(and (<= 59 main_x) (<= main_x 59)), 68678#(and (<= 58 main_x) (<= main_x 58)), 68681#(and (<= main_x 61) (<= 61 main_x)), 68680#(and (<= main_x 60) (<= 60 main_x)), 68683#(and (<= 63 main_x) (<= main_x 63)), 68682#(and (<= main_x 62) (<= 62 main_x)), 68685#(and (<= main_x 65) (<= 65 main_x)), 68684#(and (<= 64 main_x) (<= main_x 64)), 68687#(and (<= 67 main_x) (<= main_x 67)), 68686#(and (<= main_x 66) (<= 66 main_x)), 68689#(and (<= 69 main_x) (<= main_x 69)), 68688#(and (<= main_x 68) (<= 68 main_x)), 68691#(and (<= 71 main_x) (<= main_x 71)), 68690#(and (<= main_x 70) (<= 70 main_x)), 68693#(and (<= main_x 73) (<= 73 main_x)), 68692#(and (<= main_x 72) (<= 72 main_x)), 68695#(and (<= main_x 75) (<= 75 main_x)), 68694#(and (<= 74 main_x) (<= main_x 74)), 68697#(and (<= 77 main_x) (<= main_x 77)), 68696#(and (<= main_x 76) (<= 76 main_x)), 68699#(and (<= 79 main_x) (<= main_x 79)), 68698#(and (<= 78 main_x) (<= main_x 78)), 68701#(and (<= 81 main_x) (<= main_x 81)), 68700#(and (<= main_x 80) (<= 80 main_x)), 68703#(and (<= 83 main_x) (<= main_x 83)), 68702#(and (<= 82 main_x) (<= main_x 82)), 68705#(and (<= 85 main_x) (<= main_x 85)), 68704#(and (<= main_x 84) (<= 84 main_x)), 68707#(and (<= 87 main_x) (<= main_x 87)), 68706#(and (<= 86 main_x) (<= main_x 86)), 68709#(and (<= 89 main_x) (<= main_x 89)), 68708#(and (<= 88 main_x) (<= main_x 88)), 68711#(and (<= main_x 91) (<= 91 main_x)), 68710#(and (<= 90 main_x) (<= main_x 90)), 68713#(and (<= 93 main_x) (<= main_x 93)), 68712#(and (<= main_x 92) (<= 92 main_x)), 68715#(and (<= 95 main_x) (<= main_x 95)), 68714#(and (<= 94 main_x) (<= main_x 94)), 68717#(and (<= main_x 97) (<= 97 main_x)), 68716#(and (<= 96 main_x) (<= main_x 96)), 68719#(and (<= 99 main_x) (<= main_x 99)), 68718#(and (<= main_x 98) (<= 98 main_x)), 68721#(and (<= 101 main_x) (<= main_x 101)), 68720#(and (<= main_x 100) (<= 100 main_x)), 68723#(and (<= main_x 103) (<= 103 main_x)), 68722#(and (<= main_x 102) (<= 102 main_x)), 68725#(and (<= main_x 105) (<= 105 main_x)), 68724#(and (<= main_x 104) (<= 104 main_x)), 68727#(and (<= main_x 107) (<= 107 main_x)), 68726#(and (<= 106 main_x) (<= main_x 106)), 68729#(and (<= 109 main_x) (<= main_x 109)), 68728#(and (<= 108 main_x) (<= main_x 108)), 68731#(and (<= main_x 111) (<= 111 main_x)), 68730#(and (<= main_x 110) (<= 110 main_x)), 68733#(and (<= main_x 113) (<= 113 main_x)), 68732#(and (<= main_x 112) (<= 112 main_x)), 68735#(and (<= 115 main_x) (<= main_x 115)), 68734#(and (<= 114 main_x) (<= main_x 114)), 68737#(and (<= 117 main_x) (<= main_x 117)), 68736#(and (<= 116 main_x) (<= main_x 116)), 68739#(and (<= main_x 119) (<= 119 main_x)), 68738#(and (<= 118 main_x) (<= main_x 118)), 68741#(and (<= 121 main_x) (<= main_x 121)), 68740#(and (<= main_x 120) (<= 120 main_x)), 68743#(and (<= main_x 123) (<= 123 main_x)), 68742#(and (<= 122 main_x) (<= main_x 122)), 68745#(and (<= main_x 125) (<= 125 main_x)), 68744#(and (<= main_x 124) (<= 124 main_x)), 68747#(and (<= main_x 127) (<= 127 main_x)), 68746#(and (<= 126 main_x) (<= main_x 126)), 68749#(and (<= 129 main_x) (<= main_x 129)), 68748#(and (<= main_x 128) (<= 128 main_x)), 68751#(and (<= main_x 131) (<= 131 main_x)), 68750#(and (<= main_x 130) (<= 130 main_x)), 68753#(and (<= main_x 133) (<= 133 main_x)), 68752#(and (<= 132 main_x) (<= main_x 132)), 68755#(and (<= main_x 135) (<= 135 main_x)), 68754#(and (<= main_x 134) (<= 134 main_x)), 68757#(and (<= 137 main_x) (<= main_x 137)), 68756#(and (<= main_x 136) (<= 136 main_x)), 68759#(and (<= main_x 139) (<= 139 main_x)), 68758#(and (<= main_x 138) (<= 138 main_x)), 68761#(and (<= main_x 141) (<= 141 main_x)), 68760#(and (<= main_x 140) (<= 140 main_x)), 68763#(and (<= 143 main_x) (<= main_x 143)), 68762#(and (<= 142 main_x) (<= main_x 142)), 68765#(and (<= 145 main_x) (<= main_x 145)), 68764#(and (<= main_x 144) (<= 144 main_x)), 68767#(and (<= main_x 147) (<= 147 main_x)), 68766#(and (<= main_x 146) (<= 146 main_x)), 68769#(and (<= 149 main_x) (<= main_x 149)), 68768#(and (<= 148 main_x) (<= main_x 148)), 68771#(and (<= 151 main_x) (<= main_x 151)), 68770#(and (<= 150 main_x) (<= main_x 150)), 68773#(and (<= main_x 153) (<= 153 main_x)), 68772#(and (<= 152 main_x) (<= main_x 152)), 68775#(and (<= 155 main_x) (<= main_x 155)), 68774#(and (<= main_x 154) (<= 154 main_x)), 68777#(and (<= main_x 157) (<= 157 main_x)), 68776#(and (<= main_x 156) (<= 156 main_x)), 68779#(and (<= 159 main_x) (<= main_x 159)), 68778#(and (<= main_x 158) (<= 158 main_x)), 68781#(and (<= 161 main_x) (<= main_x 161)), 68780#(and (<= 160 main_x) (<= main_x 160)), 68782#(or (<= (+ main_x 94) 0) (<= 162 main_x))] [2018-07-23 13:54:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 13203 backedges. 0 proven. 13203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:14,189 INFO L450 AbstractCegarLoop]: Interpolant automaton has 165 states [2018-07-23 13:54:14,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2018-07-23 13:54:14,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=26733, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:54:14,191 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand 165 states. [2018-07-23 13:54:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:16,095 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-07-23 13:54:16,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2018-07-23 13:54:16,095 INFO L78 Accepts]: Start accepts. Automaton has 165 states. Word has length 164 [2018-07-23 13:54:16,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:16,096 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:54:16,096 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:54:16,097 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=327, Invalid=26733, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:54:16,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:54:16,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:54:16,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:54:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-07-23 13:54:16,106 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 164 [2018-07-23 13:54:16,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:16,106 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-07-23 13:54:16,106 INFO L472 AbstractCegarLoop]: Interpolant automaton has 165 states. [2018-07-23 13:54:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-07-23 13:54:16,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:54:16,107 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:16,107 INFO L357 BasicCegarLoop]: trace histogram [163, 1, 1] [2018-07-23 13:54:16,107 INFO L414 AbstractCegarLoop]: === Iteration 164 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:16,108 INFO L82 PathProgramCache]: Analyzing trace with hash 168862936, now seen corresponding path program 163 times [2018-07-23 13:54:16,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,365 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:17,365 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2018-07-23 13:54:17,366 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:17,366 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 13:54:17,366 INFO L185 omatonBuilderFactory]: Interpolants [69449#true, 69451#(and (<= main_x 0) (<= 0 main_x)), 69450#false, 69453#(and (<= 2 main_x) (<= main_x 2)), 69452#(and (<= 1 main_x) (<= main_x 1)), 69455#(and (<= main_x 4) (<= 4 main_x)), 69454#(and (<= 3 main_x) (<= main_x 3)), 69457#(and (<= 6 main_x) (<= main_x 6)), 69456#(and (<= 5 main_x) (<= main_x 5)), 69459#(and (<= main_x 8) (<= 8 main_x)), 69458#(and (<= main_x 7) (<= 7 main_x)), 69461#(and (<= main_x 10) (<= 10 main_x)), 69460#(and (<= 9 main_x) (<= main_x 9)), 69463#(and (<= 12 main_x) (<= main_x 12)), 69462#(and (<= 11 main_x) (<= main_x 11)), 69465#(and (<= 14 main_x) (<= main_x 14)), 69464#(and (<= 13 main_x) (<= main_x 13)), 69467#(and (<= main_x 16) (<= 16 main_x)), 69466#(and (<= 15 main_x) (<= main_x 15)), 69469#(and (<= main_x 18) (<= 18 main_x)), 69468#(and (<= 17 main_x) (<= main_x 17)), 69471#(and (<= 20 main_x) (<= main_x 20)), 69470#(and (<= main_x 19) (<= 19 main_x)), 69473#(and (<= main_x 22) (<= 22 main_x)), 69472#(and (<= 21 main_x) (<= main_x 21)), 69475#(and (<= main_x 24) (<= 24 main_x)), 69474#(and (<= 23 main_x) (<= main_x 23)), 69477#(and (<= main_x 26) (<= 26 main_x)), 69476#(and (<= main_x 25) (<= 25 main_x)), 69479#(and (<= main_x 28) (<= 28 main_x)), 69478#(and (<= main_x 27) (<= 27 main_x)), 69481#(and (<= 30 main_x) (<= main_x 30)), 69480#(and (<= main_x 29) (<= 29 main_x)), 69483#(and (<= 32 main_x) (<= main_x 32)), 69482#(and (<= 31 main_x) (<= main_x 31)), 69485#(and (<= 34 main_x) (<= main_x 34)), 69484#(and (<= main_x 33) (<= 33 main_x)), 69487#(and (<= main_x 36) (<= 36 main_x)), 69486#(and (<= main_x 35) (<= 35 main_x)), 69489#(and (<= 38 main_x) (<= main_x 38)), 69488#(and (<= 37 main_x) (<= main_x 37)), 69491#(and (<= main_x 40) (<= 40 main_x)), 69490#(and (<= 39 main_x) (<= main_x 39)), 69493#(and (<= 42 main_x) (<= main_x 42)), 69492#(and (<= 41 main_x) (<= main_x 41)), 69495#(and (<= main_x 44) (<= 44 main_x)), 69494#(and (<= 43 main_x) (<= main_x 43)), 69497#(and (<= 46 main_x) (<= main_x 46)), 69496#(and (<= 45 main_x) (<= main_x 45)), 69499#(and (<= 48 main_x) (<= main_x 48)), 69498#(and (<= 47 main_x) (<= main_x 47)), 69501#(and (<= main_x 50) (<= 50 main_x)), 69500#(and (<= main_x 49) (<= 49 main_x)), 69503#(and (<= 52 main_x) (<= main_x 52)), 69502#(and (<= main_x 51) (<= 51 main_x)), 69505#(and (<= 54 main_x) (<= main_x 54)), 69504#(and (<= main_x 53) (<= 53 main_x)), 69507#(and (<= main_x 56) (<= 56 main_x)), 69506#(and (<= 55 main_x) (<= main_x 55)), 69509#(and (<= 58 main_x) (<= main_x 58)), 69508#(and (<= main_x 57) (<= 57 main_x)), 69511#(and (<= main_x 60) (<= 60 main_x)), 69510#(and (<= 59 main_x) (<= main_x 59)), 69513#(and (<= main_x 62) (<= 62 main_x)), 69512#(and (<= main_x 61) (<= 61 main_x)), 69515#(and (<= 64 main_x) (<= main_x 64)), 69514#(and (<= 63 main_x) (<= main_x 63)), 69517#(and (<= main_x 66) (<= 66 main_x)), 69516#(and (<= main_x 65) (<= 65 main_x)), 69519#(and (<= main_x 68) (<= 68 main_x)), 69518#(and (<= 67 main_x) (<= main_x 67)), 69521#(and (<= main_x 70) (<= 70 main_x)), 69520#(and (<= 69 main_x) (<= main_x 69)), 69523#(and (<= main_x 72) (<= 72 main_x)), 69522#(and (<= 71 main_x) (<= main_x 71)), 69525#(and (<= 74 main_x) (<= main_x 74)), 69524#(and (<= main_x 73) (<= 73 main_x)), 69527#(and (<= main_x 76) (<= 76 main_x)), 69526#(and (<= main_x 75) (<= 75 main_x)), 69529#(and (<= 78 main_x) (<= main_x 78)), 69528#(and (<= 77 main_x) (<= main_x 77)), 69531#(and (<= main_x 80) (<= 80 main_x)), 69530#(and (<= 79 main_x) (<= main_x 79)), 69533#(and (<= 82 main_x) (<= main_x 82)), 69532#(and (<= 81 main_x) (<= main_x 81)), 69535#(and (<= main_x 84) (<= 84 main_x)), 69534#(and (<= 83 main_x) (<= main_x 83)), 69537#(and (<= 86 main_x) (<= main_x 86)), 69536#(and (<= 85 main_x) (<= main_x 85)), 69539#(and (<= 88 main_x) (<= main_x 88)), 69538#(and (<= 87 main_x) (<= main_x 87)), 69541#(and (<= 90 main_x) (<= main_x 90)), 69540#(and (<= 89 main_x) (<= main_x 89)), 69543#(and (<= main_x 92) (<= 92 main_x)), 69542#(and (<= main_x 91) (<= 91 main_x)), 69545#(and (<= 94 main_x) (<= main_x 94)), 69544#(and (<= 93 main_x) (<= main_x 93)), 69547#(and (<= 96 main_x) (<= main_x 96)), 69546#(and (<= 95 main_x) (<= main_x 95)), 69549#(and (<= main_x 98) (<= 98 main_x)), 69548#(and (<= main_x 97) (<= 97 main_x)), 69551#(and (<= main_x 100) (<= 100 main_x)), 69550#(and (<= 99 main_x) (<= main_x 99)), 69553#(and (<= main_x 102) (<= 102 main_x)), 69552#(and (<= 101 main_x) (<= main_x 101)), 69555#(and (<= main_x 104) (<= 104 main_x)), 69554#(and (<= main_x 103) (<= 103 main_x)), 69557#(and (<= 106 main_x) (<= main_x 106)), 69556#(and (<= main_x 105) (<= 105 main_x)), 69559#(and (<= 108 main_x) (<= main_x 108)), 69558#(and (<= main_x 107) (<= 107 main_x)), 69561#(and (<= main_x 110) (<= 110 main_x)), 69560#(and (<= 109 main_x) (<= main_x 109)), 69563#(and (<= main_x 112) (<= 112 main_x)), 69562#(and (<= main_x 111) (<= 111 main_x)), 69565#(and (<= 114 main_x) (<= main_x 114)), 69564#(and (<= main_x 113) (<= 113 main_x)), 69567#(and (<= 116 main_x) (<= main_x 116)), 69566#(and (<= 115 main_x) (<= main_x 115)), 69569#(and (<= 118 main_x) (<= main_x 118)), 69568#(and (<= 117 main_x) (<= main_x 117)), 69571#(and (<= main_x 120) (<= 120 main_x)), 69570#(and (<= main_x 119) (<= 119 main_x)), 69573#(and (<= 122 main_x) (<= main_x 122)), 69572#(and (<= 121 main_x) (<= main_x 121)), 69575#(and (<= main_x 124) (<= 124 main_x)), 69574#(and (<= main_x 123) (<= 123 main_x)), 69577#(and (<= 126 main_x) (<= main_x 126)), 69576#(and (<= main_x 125) (<= 125 main_x)), 69579#(and (<= main_x 128) (<= 128 main_x)), 69578#(and (<= main_x 127) (<= 127 main_x)), 69581#(and (<= main_x 130) (<= 130 main_x)), 69580#(and (<= 129 main_x) (<= main_x 129)), 69583#(and (<= 132 main_x) (<= main_x 132)), 69582#(and (<= main_x 131) (<= 131 main_x)), 69585#(and (<= main_x 134) (<= 134 main_x)), 69584#(and (<= main_x 133) (<= 133 main_x)), 69587#(and (<= main_x 136) (<= 136 main_x)), 69586#(and (<= main_x 135) (<= 135 main_x)), 69589#(and (<= main_x 138) (<= 138 main_x)), 69588#(and (<= 137 main_x) (<= main_x 137)), 69591#(and (<= main_x 140) (<= 140 main_x)), 69590#(and (<= main_x 139) (<= 139 main_x)), 69593#(and (<= 142 main_x) (<= main_x 142)), 69592#(and (<= main_x 141) (<= 141 main_x)), 69595#(and (<= main_x 144) (<= 144 main_x)), 69594#(and (<= 143 main_x) (<= main_x 143)), 69597#(and (<= main_x 146) (<= 146 main_x)), 69596#(and (<= 145 main_x) (<= main_x 145)), 69599#(and (<= 148 main_x) (<= main_x 148)), 69598#(and (<= main_x 147) (<= 147 main_x)), 69601#(and (<= 150 main_x) (<= main_x 150)), 69600#(and (<= 149 main_x) (<= main_x 149)), 69603#(and (<= 152 main_x) (<= main_x 152)), 69602#(and (<= 151 main_x) (<= main_x 151)), 69605#(and (<= main_x 154) (<= 154 main_x)), 69604#(and (<= main_x 153) (<= 153 main_x)), 69607#(and (<= main_x 156) (<= 156 main_x)), 69606#(and (<= 155 main_x) (<= main_x 155)), 69609#(and (<= main_x 158) (<= 158 main_x)), 69608#(and (<= main_x 157) (<= 157 main_x)), 69611#(and (<= 160 main_x) (<= main_x 160)), 69610#(and (<= 159 main_x) (<= main_x 159)), 69613#(and (<= main_x 162) (<= 162 main_x)), 69612#(and (<= 161 main_x) (<= main_x 161)), 69614#(or (<= (+ main_x 93) 0) (<= 163 main_x))] [2018-07-23 13:54:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 13366 backedges. 0 proven. 13366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:17,367 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:54:17,367 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:54:17,368 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=27061, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:54:17,368 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 166 states. [2018-07-23 13:54:19,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:19,193 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2018-07-23 13:54:19,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:54:19,194 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 165 [2018-07-23 13:54:19,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:19,194 INFO L225 Difference]: With dead ends: 168 [2018-07-23 13:54:19,194 INFO L226 Difference]: Without dead ends: 167 [2018-07-23 13:54:19,196 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=329, Invalid=27061, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:54:19,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-07-23 13:54:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-07-23 13:54:19,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-07-23 13:54:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2018-07-23 13:54:19,202 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 165 [2018-07-23 13:54:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:19,202 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2018-07-23 13:54:19,202 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:54:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2018-07-23 13:54:19,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-07-23 13:54:19,203 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:19,203 INFO L357 BasicCegarLoop]: trace histogram [164, 1, 1] [2018-07-23 13:54:19,203 INFO L414 AbstractCegarLoop]: === Iteration 165 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:19,203 INFO L82 PathProgramCache]: Analyzing trace with hash 939783955, now seen corresponding path program 164 times [2018-07-23 13:54:19,203 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:20,648 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:20,648 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:54:20,648 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:20,649 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 13:54:20,649 INFO L185 omatonBuilderFactory]: Interpolants [70401#(and (<= 114 main_x) (<= main_x 114)), 70400#(and (<= main_x 113) (<= 113 main_x)), 70403#(and (<= 116 main_x) (<= main_x 116)), 70402#(and (<= 115 main_x) (<= main_x 115)), 70405#(and (<= 118 main_x) (<= main_x 118)), 70404#(and (<= 117 main_x) (<= main_x 117)), 70407#(and (<= main_x 120) (<= 120 main_x)), 70406#(and (<= main_x 119) (<= 119 main_x)), 70409#(and (<= 122 main_x) (<= main_x 122)), 70408#(and (<= 121 main_x) (<= main_x 121)), 70411#(and (<= main_x 124) (<= 124 main_x)), 70410#(and (<= main_x 123) (<= 123 main_x)), 70413#(and (<= 126 main_x) (<= main_x 126)), 70412#(and (<= main_x 125) (<= 125 main_x)), 70415#(and (<= main_x 128) (<= 128 main_x)), 70414#(and (<= main_x 127) (<= 127 main_x)), 70417#(and (<= main_x 130) (<= 130 main_x)), 70416#(and (<= 129 main_x) (<= main_x 129)), 70419#(and (<= 132 main_x) (<= main_x 132)), 70418#(and (<= main_x 131) (<= 131 main_x)), 70421#(and (<= main_x 134) (<= 134 main_x)), 70420#(and (<= main_x 133) (<= 133 main_x)), 70423#(and (<= main_x 136) (<= 136 main_x)), 70422#(and (<= main_x 135) (<= 135 main_x)), 70425#(and (<= main_x 138) (<= 138 main_x)), 70424#(and (<= 137 main_x) (<= main_x 137)), 70427#(and (<= main_x 140) (<= 140 main_x)), 70426#(and (<= main_x 139) (<= 139 main_x)), 70429#(and (<= 142 main_x) (<= main_x 142)), 70428#(and (<= main_x 141) (<= 141 main_x)), 70431#(and (<= main_x 144) (<= 144 main_x)), 70430#(and (<= 143 main_x) (<= main_x 143)), 70433#(and (<= main_x 146) (<= 146 main_x)), 70432#(and (<= 145 main_x) (<= main_x 145)), 70435#(and (<= 148 main_x) (<= main_x 148)), 70434#(and (<= main_x 147) (<= 147 main_x)), 70437#(and (<= 150 main_x) (<= main_x 150)), 70436#(and (<= 149 main_x) (<= main_x 149)), 70439#(and (<= 152 main_x) (<= main_x 152)), 70438#(and (<= 151 main_x) (<= main_x 151)), 70441#(and (<= main_x 154) (<= 154 main_x)), 70440#(and (<= main_x 153) (<= 153 main_x)), 70443#(and (<= main_x 156) (<= 156 main_x)), 70442#(and (<= 155 main_x) (<= main_x 155)), 70445#(and (<= main_x 158) (<= 158 main_x)), 70444#(and (<= main_x 157) (<= 157 main_x)), 70447#(and (<= 160 main_x) (<= main_x 160)), 70446#(and (<= 159 main_x) (<= main_x 159)), 70449#(and (<= main_x 162) (<= 162 main_x)), 70448#(and (<= 161 main_x) (<= main_x 161)), 70451#(or (<= 164 main_x) (<= (+ main_x 92) 0)), 70450#(and (<= 163 main_x) (<= main_x 163)), 70285#true, 70287#(and (<= main_x 0) (<= 0 main_x)), 70286#false, 70289#(and (<= 2 main_x) (<= main_x 2)), 70288#(and (<= 1 main_x) (<= main_x 1)), 70291#(and (<= main_x 4) (<= 4 main_x)), 70290#(and (<= 3 main_x) (<= main_x 3)), 70293#(and (<= 6 main_x) (<= main_x 6)), 70292#(and (<= 5 main_x) (<= main_x 5)), 70295#(and (<= main_x 8) (<= 8 main_x)), 70294#(and (<= main_x 7) (<= 7 main_x)), 70297#(and (<= main_x 10) (<= 10 main_x)), 70296#(and (<= 9 main_x) (<= main_x 9)), 70299#(and (<= 12 main_x) (<= main_x 12)), 70298#(and (<= 11 main_x) (<= main_x 11)), 70301#(and (<= 14 main_x) (<= main_x 14)), 70300#(and (<= 13 main_x) (<= main_x 13)), 70303#(and (<= main_x 16) (<= 16 main_x)), 70302#(and (<= 15 main_x) (<= main_x 15)), 70305#(and (<= main_x 18) (<= 18 main_x)), 70304#(and (<= 17 main_x) (<= main_x 17)), 70307#(and (<= 20 main_x) (<= main_x 20)), 70306#(and (<= main_x 19) (<= 19 main_x)), 70309#(and (<= main_x 22) (<= 22 main_x)), 70308#(and (<= 21 main_x) (<= main_x 21)), 70311#(and (<= main_x 24) (<= 24 main_x)), 70310#(and (<= 23 main_x) (<= main_x 23)), 70313#(and (<= main_x 26) (<= 26 main_x)), 70312#(and (<= main_x 25) (<= 25 main_x)), 70315#(and (<= main_x 28) (<= 28 main_x)), 70314#(and (<= main_x 27) (<= 27 main_x)), 70317#(and (<= 30 main_x) (<= main_x 30)), 70316#(and (<= main_x 29) (<= 29 main_x)), 70319#(and (<= 32 main_x) (<= main_x 32)), 70318#(and (<= 31 main_x) (<= main_x 31)), 70321#(and (<= 34 main_x) (<= main_x 34)), 70320#(and (<= main_x 33) (<= 33 main_x)), 70323#(and (<= main_x 36) (<= 36 main_x)), 70322#(and (<= main_x 35) (<= 35 main_x)), 70325#(and (<= 38 main_x) (<= main_x 38)), 70324#(and (<= 37 main_x) (<= main_x 37)), 70327#(and (<= main_x 40) (<= 40 main_x)), 70326#(and (<= 39 main_x) (<= main_x 39)), 70329#(and (<= 42 main_x) (<= main_x 42)), 70328#(and (<= 41 main_x) (<= main_x 41)), 70331#(and (<= main_x 44) (<= 44 main_x)), 70330#(and (<= 43 main_x) (<= main_x 43)), 70333#(and (<= 46 main_x) (<= main_x 46)), 70332#(and (<= 45 main_x) (<= main_x 45)), 70335#(and (<= 48 main_x) (<= main_x 48)), 70334#(and (<= 47 main_x) (<= main_x 47)), 70337#(and (<= main_x 50) (<= 50 main_x)), 70336#(and (<= main_x 49) (<= 49 main_x)), 70339#(and (<= 52 main_x) (<= main_x 52)), 70338#(and (<= main_x 51) (<= 51 main_x)), 70341#(and (<= 54 main_x) (<= main_x 54)), 70340#(and (<= main_x 53) (<= 53 main_x)), 70343#(and (<= main_x 56) (<= 56 main_x)), 70342#(and (<= 55 main_x) (<= main_x 55)), 70345#(and (<= 58 main_x) (<= main_x 58)), 70344#(and (<= main_x 57) (<= 57 main_x)), 70347#(and (<= main_x 60) (<= 60 main_x)), 70346#(and (<= 59 main_x) (<= main_x 59)), 70349#(and (<= main_x 62) (<= 62 main_x)), 70348#(and (<= main_x 61) (<= 61 main_x)), 70351#(and (<= 64 main_x) (<= main_x 64)), 70350#(and (<= 63 main_x) (<= main_x 63)), 70353#(and (<= main_x 66) (<= 66 main_x)), 70352#(and (<= main_x 65) (<= 65 main_x)), 70355#(and (<= main_x 68) (<= 68 main_x)), 70354#(and (<= 67 main_x) (<= main_x 67)), 70357#(and (<= main_x 70) (<= 70 main_x)), 70356#(and (<= 69 main_x) (<= main_x 69)), 70359#(and (<= main_x 72) (<= 72 main_x)), 70358#(and (<= 71 main_x) (<= main_x 71)), 70361#(and (<= 74 main_x) (<= main_x 74)), 70360#(and (<= main_x 73) (<= 73 main_x)), 70363#(and (<= main_x 76) (<= 76 main_x)), 70362#(and (<= main_x 75) (<= 75 main_x)), 70365#(and (<= 78 main_x) (<= main_x 78)), 70364#(and (<= 77 main_x) (<= main_x 77)), 70367#(and (<= main_x 80) (<= 80 main_x)), 70366#(and (<= 79 main_x) (<= main_x 79)), 70369#(and (<= 82 main_x) (<= main_x 82)), 70368#(and (<= 81 main_x) (<= main_x 81)), 70371#(and (<= main_x 84) (<= 84 main_x)), 70370#(and (<= 83 main_x) (<= main_x 83)), 70373#(and (<= 86 main_x) (<= main_x 86)), 70372#(and (<= 85 main_x) (<= main_x 85)), 70375#(and (<= 88 main_x) (<= main_x 88)), 70374#(and (<= 87 main_x) (<= main_x 87)), 70377#(and (<= 90 main_x) (<= main_x 90)), 70376#(and (<= 89 main_x) (<= main_x 89)), 70379#(and (<= main_x 92) (<= 92 main_x)), 70378#(and (<= main_x 91) (<= 91 main_x)), 70381#(and (<= 94 main_x) (<= main_x 94)), 70380#(and (<= 93 main_x) (<= main_x 93)), 70383#(and (<= 96 main_x) (<= main_x 96)), 70382#(and (<= 95 main_x) (<= main_x 95)), 70385#(and (<= main_x 98) (<= 98 main_x)), 70384#(and (<= main_x 97) (<= 97 main_x)), 70387#(and (<= main_x 100) (<= 100 main_x)), 70386#(and (<= 99 main_x) (<= main_x 99)), 70389#(and (<= main_x 102) (<= 102 main_x)), 70388#(and (<= 101 main_x) (<= main_x 101)), 70391#(and (<= main_x 104) (<= 104 main_x)), 70390#(and (<= main_x 103) (<= 103 main_x)), 70393#(and (<= 106 main_x) (<= main_x 106)), 70392#(and (<= main_x 105) (<= 105 main_x)), 70395#(and (<= 108 main_x) (<= main_x 108)), 70394#(and (<= main_x 107) (<= 107 main_x)), 70397#(and (<= main_x 110) (<= 110 main_x)), 70396#(and (<= 109 main_x) (<= main_x 109)), 70399#(and (<= main_x 112) (<= 112 main_x)), 70398#(and (<= main_x 111) (<= 111 main_x))] [2018-07-23 13:54:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 13530 backedges. 0 proven. 13530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:20,650 INFO L450 AbstractCegarLoop]: Interpolant automaton has 167 states [2018-07-23 13:54:20,650 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2018-07-23 13:54:20,651 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=27391, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:54:20,651 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 167 states. [2018-07-23 13:54:22,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:22,539 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-07-23 13:54:22,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-07-23 13:54:22,539 INFO L78 Accepts]: Start accepts. Automaton has 167 states. Word has length 166 [2018-07-23 13:54:22,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:22,540 INFO L225 Difference]: With dead ends: 169 [2018-07-23 13:54:22,540 INFO L226 Difference]: Without dead ends: 168 [2018-07-23 13:54:22,541 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=331, Invalid=27391, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:54:22,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-07-23 13:54:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-07-23 13:54:22,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:54:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-07-23 13:54:22,548 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 166 [2018-07-23 13:54:22,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:22,548 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-07-23 13:54:22,548 INFO L472 AbstractCegarLoop]: Interpolant automaton has 167 states. [2018-07-23 13:54:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-07-23 13:54:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:54:22,548 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:22,548 INFO L357 BasicCegarLoop]: trace histogram [165, 1, 1] [2018-07-23 13:54:22,549 INFO L414 AbstractCegarLoop]: === Iteration 166 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:22,549 INFO L82 PathProgramCache]: Analyzing trace with hash -931468232, now seen corresponding path program 165 times [2018-07-23 13:54:22,549 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,875 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:23,876 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2018-07-23 13:54:23,876 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:23,876 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 13:54:23,876 INFO L185 omatonBuilderFactory]: Interpolants [71169#(and (<= 41 main_x) (<= main_x 41)), 71168#(and (<= main_x 40) (<= 40 main_x)), 71171#(and (<= 43 main_x) (<= main_x 43)), 71170#(and (<= 42 main_x) (<= main_x 42)), 71173#(and (<= 45 main_x) (<= main_x 45)), 71172#(and (<= main_x 44) (<= 44 main_x)), 71175#(and (<= 47 main_x) (<= main_x 47)), 71174#(and (<= 46 main_x) (<= main_x 46)), 71177#(and (<= main_x 49) (<= 49 main_x)), 71176#(and (<= 48 main_x) (<= main_x 48)), 71179#(and (<= main_x 51) (<= 51 main_x)), 71178#(and (<= main_x 50) (<= 50 main_x)), 71181#(and (<= main_x 53) (<= 53 main_x)), 71180#(and (<= 52 main_x) (<= main_x 52)), 71183#(and (<= 55 main_x) (<= main_x 55)), 71182#(and (<= 54 main_x) (<= main_x 54)), 71185#(and (<= main_x 57) (<= 57 main_x)), 71184#(and (<= main_x 56) (<= 56 main_x)), 71187#(and (<= 59 main_x) (<= main_x 59)), 71186#(and (<= 58 main_x) (<= main_x 58)), 71189#(and (<= main_x 61) (<= 61 main_x)), 71188#(and (<= main_x 60) (<= 60 main_x)), 71191#(and (<= 63 main_x) (<= main_x 63)), 71190#(and (<= main_x 62) (<= 62 main_x)), 71193#(and (<= main_x 65) (<= 65 main_x)), 71192#(and (<= 64 main_x) (<= main_x 64)), 71195#(and (<= 67 main_x) (<= main_x 67)), 71194#(and (<= main_x 66) (<= 66 main_x)), 71197#(and (<= 69 main_x) (<= main_x 69)), 71196#(and (<= main_x 68) (<= 68 main_x)), 71199#(and (<= 71 main_x) (<= main_x 71)), 71198#(and (<= main_x 70) (<= 70 main_x)), 71201#(and (<= main_x 73) (<= 73 main_x)), 71200#(and (<= main_x 72) (<= 72 main_x)), 71203#(and (<= main_x 75) (<= 75 main_x)), 71202#(and (<= 74 main_x) (<= main_x 74)), 71205#(and (<= 77 main_x) (<= main_x 77)), 71204#(and (<= main_x 76) (<= 76 main_x)), 71207#(and (<= 79 main_x) (<= main_x 79)), 71206#(and (<= 78 main_x) (<= main_x 78)), 71209#(and (<= 81 main_x) (<= main_x 81)), 71208#(and (<= main_x 80) (<= 80 main_x)), 71211#(and (<= 83 main_x) (<= main_x 83)), 71210#(and (<= 82 main_x) (<= main_x 82)), 71213#(and (<= 85 main_x) (<= main_x 85)), 71212#(and (<= main_x 84) (<= 84 main_x)), 71215#(and (<= 87 main_x) (<= main_x 87)), 71214#(and (<= 86 main_x) (<= main_x 86)), 71217#(and (<= 89 main_x) (<= main_x 89)), 71216#(and (<= 88 main_x) (<= main_x 88)), 71219#(and (<= main_x 91) (<= 91 main_x)), 71218#(and (<= 90 main_x) (<= main_x 90)), 71221#(and (<= 93 main_x) (<= main_x 93)), 71220#(and (<= main_x 92) (<= 92 main_x)), 71223#(and (<= 95 main_x) (<= main_x 95)), 71222#(and (<= 94 main_x) (<= main_x 94)), 71225#(and (<= main_x 97) (<= 97 main_x)), 71224#(and (<= 96 main_x) (<= main_x 96)), 71227#(and (<= 99 main_x) (<= main_x 99)), 71226#(and (<= main_x 98) (<= 98 main_x)), 71229#(and (<= 101 main_x) (<= main_x 101)), 71228#(and (<= main_x 100) (<= 100 main_x)), 71231#(and (<= main_x 103) (<= 103 main_x)), 71230#(and (<= main_x 102) (<= 102 main_x)), 71233#(and (<= main_x 105) (<= 105 main_x)), 71232#(and (<= main_x 104) (<= 104 main_x)), 71235#(and (<= main_x 107) (<= 107 main_x)), 71234#(and (<= 106 main_x) (<= main_x 106)), 71237#(and (<= 109 main_x) (<= main_x 109)), 71236#(and (<= 108 main_x) (<= main_x 108)), 71239#(and (<= main_x 111) (<= 111 main_x)), 71238#(and (<= main_x 110) (<= 110 main_x)), 71241#(and (<= main_x 113) (<= 113 main_x)), 71240#(and (<= main_x 112) (<= 112 main_x)), 71243#(and (<= 115 main_x) (<= main_x 115)), 71242#(and (<= 114 main_x) (<= main_x 114)), 71245#(and (<= 117 main_x) (<= main_x 117)), 71244#(and (<= 116 main_x) (<= main_x 116)), 71247#(and (<= main_x 119) (<= 119 main_x)), 71246#(and (<= 118 main_x) (<= main_x 118)), 71249#(and (<= 121 main_x) (<= main_x 121)), 71248#(and (<= main_x 120) (<= 120 main_x)), 71251#(and (<= main_x 123) (<= 123 main_x)), 71250#(and (<= 122 main_x) (<= main_x 122)), 71253#(and (<= main_x 125) (<= 125 main_x)), 71252#(and (<= main_x 124) (<= 124 main_x)), 71255#(and (<= main_x 127) (<= 127 main_x)), 71254#(and (<= 126 main_x) (<= main_x 126)), 71257#(and (<= 129 main_x) (<= main_x 129)), 71256#(and (<= main_x 128) (<= 128 main_x)), 71259#(and (<= main_x 131) (<= 131 main_x)), 71258#(and (<= main_x 130) (<= 130 main_x)), 71261#(and (<= main_x 133) (<= 133 main_x)), 71260#(and (<= 132 main_x) (<= main_x 132)), 71263#(and (<= main_x 135) (<= 135 main_x)), 71262#(and (<= main_x 134) (<= 134 main_x)), 71265#(and (<= 137 main_x) (<= main_x 137)), 71264#(and (<= main_x 136) (<= 136 main_x)), 71267#(and (<= main_x 139) (<= 139 main_x)), 71266#(and (<= main_x 138) (<= 138 main_x)), 71269#(and (<= main_x 141) (<= 141 main_x)), 71268#(and (<= main_x 140) (<= 140 main_x)), 71271#(and (<= 143 main_x) (<= main_x 143)), 71270#(and (<= 142 main_x) (<= main_x 142)), 71273#(and (<= 145 main_x) (<= main_x 145)), 71272#(and (<= main_x 144) (<= 144 main_x)), 71275#(and (<= main_x 147) (<= 147 main_x)), 71274#(and (<= main_x 146) (<= 146 main_x)), 71277#(and (<= 149 main_x) (<= main_x 149)), 71276#(and (<= 148 main_x) (<= main_x 148)), 71279#(and (<= 151 main_x) (<= main_x 151)), 71278#(and (<= 150 main_x) (<= main_x 150)), 71281#(and (<= main_x 153) (<= 153 main_x)), 71280#(and (<= 152 main_x) (<= main_x 152)), 71283#(and (<= 155 main_x) (<= main_x 155)), 71282#(and (<= main_x 154) (<= 154 main_x)), 71285#(and (<= main_x 157) (<= 157 main_x)), 71284#(and (<= main_x 156) (<= 156 main_x)), 71287#(and (<= 159 main_x) (<= main_x 159)), 71286#(and (<= main_x 158) (<= 158 main_x)), 71289#(and (<= 161 main_x) (<= main_x 161)), 71288#(and (<= 160 main_x) (<= main_x 160)), 71291#(and (<= 163 main_x) (<= main_x 163)), 71290#(and (<= main_x 162) (<= 162 main_x)), 71293#(or (<= (+ main_x 91) 0) (<= 165 main_x)), 71292#(and (<= 164 main_x) (<= main_x 164)), 71127#false, 71126#true, 71129#(and (<= 1 main_x) (<= main_x 1)), 71128#(and (<= main_x 0) (<= 0 main_x)), 71131#(and (<= 3 main_x) (<= main_x 3)), 71130#(and (<= 2 main_x) (<= main_x 2)), 71133#(and (<= 5 main_x) (<= main_x 5)), 71132#(and (<= main_x 4) (<= 4 main_x)), 71135#(and (<= main_x 7) (<= 7 main_x)), 71134#(and (<= 6 main_x) (<= main_x 6)), 71137#(and (<= 9 main_x) (<= main_x 9)), 71136#(and (<= main_x 8) (<= 8 main_x)), 71139#(and (<= 11 main_x) (<= main_x 11)), 71138#(and (<= main_x 10) (<= 10 main_x)), 71141#(and (<= 13 main_x) (<= main_x 13)), 71140#(and (<= 12 main_x) (<= main_x 12)), 71143#(and (<= 15 main_x) (<= main_x 15)), 71142#(and (<= 14 main_x) (<= main_x 14)), 71145#(and (<= 17 main_x) (<= main_x 17)), 71144#(and (<= main_x 16) (<= 16 main_x)), 71147#(and (<= main_x 19) (<= 19 main_x)), 71146#(and (<= main_x 18) (<= 18 main_x)), 71149#(and (<= 21 main_x) (<= main_x 21)), 71148#(and (<= 20 main_x) (<= main_x 20)), 71151#(and (<= 23 main_x) (<= main_x 23)), 71150#(and (<= main_x 22) (<= 22 main_x)), 71153#(and (<= main_x 25) (<= 25 main_x)), 71152#(and (<= main_x 24) (<= 24 main_x)), 71155#(and (<= main_x 27) (<= 27 main_x)), 71154#(and (<= main_x 26) (<= 26 main_x)), 71157#(and (<= main_x 29) (<= 29 main_x)), 71156#(and (<= main_x 28) (<= 28 main_x)), 71159#(and (<= 31 main_x) (<= main_x 31)), 71158#(and (<= 30 main_x) (<= main_x 30)), 71161#(and (<= main_x 33) (<= 33 main_x)), 71160#(and (<= 32 main_x) (<= main_x 32)), 71163#(and (<= main_x 35) (<= 35 main_x)), 71162#(and (<= 34 main_x) (<= main_x 34)), 71165#(and (<= 37 main_x) (<= main_x 37)), 71164#(and (<= main_x 36) (<= 36 main_x)), 71167#(and (<= 39 main_x) (<= main_x 39)), 71166#(and (<= 38 main_x) (<= main_x 38))] [2018-07-23 13:54:23,877 INFO L134 CoverageAnalysis]: Checked inductivity of 13695 backedges. 0 proven. 13695 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,877 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:54:23,877 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:54:23,878 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=27723, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:54:23,878 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 168 states. [2018-07-23 13:54:25,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:25,659 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2018-07-23 13:54:25,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:54:25,659 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 167 [2018-07-23 13:54:25,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:25,659 INFO L225 Difference]: With dead ends: 170 [2018-07-23 13:54:25,659 INFO L226 Difference]: Without dead ends: 169 [2018-07-23 13:54:25,660 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=333, Invalid=27723, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:54:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-07-23 13:54:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-07-23 13:54:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-07-23 13:54:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2018-07-23 13:54:25,667 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 167 [2018-07-23 13:54:25,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:25,667 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2018-07-23 13:54:25,667 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:54:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2018-07-23 13:54:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-07-23 13:54:25,667 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:25,667 INFO L357 BasicCegarLoop]: trace histogram [166, 1, 1] [2018-07-23 13:54:25,667 INFO L414 AbstractCegarLoop]: === Iteration 167 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:25,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1189256115, now seen corresponding path program 166 times [2018-07-23 13:54:25,668 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,954 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:26,954 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:54:26,954 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:26,954 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 13:54:26,954 INFO L185 omatonBuilderFactory]: Interpolants [71973#false, 71972#true, 71975#(and (<= 1 main_x) (<= main_x 1)), 71974#(and (<= main_x 0) (<= 0 main_x)), 71977#(and (<= 3 main_x) (<= main_x 3)), 71976#(and (<= 2 main_x) (<= main_x 2)), 71979#(and (<= 5 main_x) (<= main_x 5)), 71978#(and (<= main_x 4) (<= 4 main_x)), 71981#(and (<= main_x 7) (<= 7 main_x)), 71980#(and (<= 6 main_x) (<= main_x 6)), 71983#(and (<= 9 main_x) (<= main_x 9)), 71982#(and (<= main_x 8) (<= 8 main_x)), 71985#(and (<= 11 main_x) (<= main_x 11)), 71984#(and (<= main_x 10) (<= 10 main_x)), 71987#(and (<= 13 main_x) (<= main_x 13)), 71986#(and (<= 12 main_x) (<= main_x 12)), 71989#(and (<= 15 main_x) (<= main_x 15)), 71988#(and (<= 14 main_x) (<= main_x 14)), 71991#(and (<= 17 main_x) (<= main_x 17)), 71990#(and (<= main_x 16) (<= 16 main_x)), 71993#(and (<= main_x 19) (<= 19 main_x)), 71992#(and (<= main_x 18) (<= 18 main_x)), 71995#(and (<= 21 main_x) (<= main_x 21)), 71994#(and (<= 20 main_x) (<= main_x 20)), 71997#(and (<= 23 main_x) (<= main_x 23)), 71996#(and (<= main_x 22) (<= 22 main_x)), 71999#(and (<= main_x 25) (<= 25 main_x)), 71998#(and (<= main_x 24) (<= 24 main_x)), 72001#(and (<= main_x 27) (<= 27 main_x)), 72000#(and (<= main_x 26) (<= 26 main_x)), 72003#(and (<= main_x 29) (<= 29 main_x)), 72002#(and (<= main_x 28) (<= 28 main_x)), 72005#(and (<= 31 main_x) (<= main_x 31)), 72004#(and (<= 30 main_x) (<= main_x 30)), 72007#(and (<= main_x 33) (<= 33 main_x)), 72006#(and (<= 32 main_x) (<= main_x 32)), 72009#(and (<= main_x 35) (<= 35 main_x)), 72008#(and (<= 34 main_x) (<= main_x 34)), 72011#(and (<= 37 main_x) (<= main_x 37)), 72010#(and (<= main_x 36) (<= 36 main_x)), 72013#(and (<= 39 main_x) (<= main_x 39)), 72012#(and (<= 38 main_x) (<= main_x 38)), 72015#(and (<= 41 main_x) (<= main_x 41)), 72014#(and (<= main_x 40) (<= 40 main_x)), 72017#(and (<= 43 main_x) (<= main_x 43)), 72016#(and (<= 42 main_x) (<= main_x 42)), 72019#(and (<= 45 main_x) (<= main_x 45)), 72018#(and (<= main_x 44) (<= 44 main_x)), 72021#(and (<= 47 main_x) (<= main_x 47)), 72020#(and (<= 46 main_x) (<= main_x 46)), 72023#(and (<= main_x 49) (<= 49 main_x)), 72022#(and (<= 48 main_x) (<= main_x 48)), 72025#(and (<= main_x 51) (<= 51 main_x)), 72024#(and (<= main_x 50) (<= 50 main_x)), 72027#(and (<= main_x 53) (<= 53 main_x)), 72026#(and (<= 52 main_x) (<= main_x 52)), 72029#(and (<= 55 main_x) (<= main_x 55)), 72028#(and (<= 54 main_x) (<= main_x 54)), 72031#(and (<= main_x 57) (<= 57 main_x)), 72030#(and (<= main_x 56) (<= 56 main_x)), 72033#(and (<= 59 main_x) (<= main_x 59)), 72032#(and (<= 58 main_x) (<= main_x 58)), 72035#(and (<= main_x 61) (<= 61 main_x)), 72034#(and (<= main_x 60) (<= 60 main_x)), 72037#(and (<= 63 main_x) (<= main_x 63)), 72036#(and (<= main_x 62) (<= 62 main_x)), 72039#(and (<= main_x 65) (<= 65 main_x)), 72038#(and (<= 64 main_x) (<= main_x 64)), 72041#(and (<= 67 main_x) (<= main_x 67)), 72040#(and (<= main_x 66) (<= 66 main_x)), 72043#(and (<= 69 main_x) (<= main_x 69)), 72042#(and (<= main_x 68) (<= 68 main_x)), 72045#(and (<= 71 main_x) (<= main_x 71)), 72044#(and (<= main_x 70) (<= 70 main_x)), 72047#(and (<= main_x 73) (<= 73 main_x)), 72046#(and (<= main_x 72) (<= 72 main_x)), 72049#(and (<= main_x 75) (<= 75 main_x)), 72048#(and (<= 74 main_x) (<= main_x 74)), 72051#(and (<= 77 main_x) (<= main_x 77)), 72050#(and (<= main_x 76) (<= 76 main_x)), 72053#(and (<= 79 main_x) (<= main_x 79)), 72052#(and (<= 78 main_x) (<= main_x 78)), 72055#(and (<= 81 main_x) (<= main_x 81)), 72054#(and (<= main_x 80) (<= 80 main_x)), 72057#(and (<= 83 main_x) (<= main_x 83)), 72056#(and (<= 82 main_x) (<= main_x 82)), 72059#(and (<= 85 main_x) (<= main_x 85)), 72058#(and (<= main_x 84) (<= 84 main_x)), 72061#(and (<= 87 main_x) (<= main_x 87)), 72060#(and (<= 86 main_x) (<= main_x 86)), 72063#(and (<= 89 main_x) (<= main_x 89)), 72062#(and (<= 88 main_x) (<= main_x 88)), 72065#(and (<= main_x 91) (<= 91 main_x)), 72064#(and (<= 90 main_x) (<= main_x 90)), 72067#(and (<= 93 main_x) (<= main_x 93)), 72066#(and (<= main_x 92) (<= 92 main_x)), 72069#(and (<= 95 main_x) (<= main_x 95)), 72068#(and (<= 94 main_x) (<= main_x 94)), 72071#(and (<= main_x 97) (<= 97 main_x)), 72070#(and (<= 96 main_x) (<= main_x 96)), 72073#(and (<= 99 main_x) (<= main_x 99)), 72072#(and (<= main_x 98) (<= 98 main_x)), 72075#(and (<= 101 main_x) (<= main_x 101)), 72074#(and (<= main_x 100) (<= 100 main_x)), 72077#(and (<= main_x 103) (<= 103 main_x)), 72076#(and (<= main_x 102) (<= 102 main_x)), 72079#(and (<= main_x 105) (<= 105 main_x)), 72078#(and (<= main_x 104) (<= 104 main_x)), 72081#(and (<= main_x 107) (<= 107 main_x)), 72080#(and (<= 106 main_x) (<= main_x 106)), 72083#(and (<= 109 main_x) (<= main_x 109)), 72082#(and (<= 108 main_x) (<= main_x 108)), 72085#(and (<= main_x 111) (<= 111 main_x)), 72084#(and (<= main_x 110) (<= 110 main_x)), 72087#(and (<= main_x 113) (<= 113 main_x)), 72086#(and (<= main_x 112) (<= 112 main_x)), 72089#(and (<= 115 main_x) (<= main_x 115)), 72088#(and (<= 114 main_x) (<= main_x 114)), 72091#(and (<= 117 main_x) (<= main_x 117)), 72090#(and (<= 116 main_x) (<= main_x 116)), 72093#(and (<= main_x 119) (<= 119 main_x)), 72092#(and (<= 118 main_x) (<= main_x 118)), 72095#(and (<= 121 main_x) (<= main_x 121)), 72094#(and (<= main_x 120) (<= 120 main_x)), 72097#(and (<= main_x 123) (<= 123 main_x)), 72096#(and (<= 122 main_x) (<= main_x 122)), 72099#(and (<= main_x 125) (<= 125 main_x)), 72098#(and (<= main_x 124) (<= 124 main_x)), 72101#(and (<= main_x 127) (<= 127 main_x)), 72100#(and (<= 126 main_x) (<= main_x 126)), 72103#(and (<= 129 main_x) (<= main_x 129)), 72102#(and (<= main_x 128) (<= 128 main_x)), 72105#(and (<= main_x 131) (<= 131 main_x)), 72104#(and (<= main_x 130) (<= 130 main_x)), 72107#(and (<= main_x 133) (<= 133 main_x)), 72106#(and (<= 132 main_x) (<= main_x 132)), 72109#(and (<= main_x 135) (<= 135 main_x)), 72108#(and (<= main_x 134) (<= 134 main_x)), 72111#(and (<= 137 main_x) (<= main_x 137)), 72110#(and (<= main_x 136) (<= 136 main_x)), 72113#(and (<= main_x 139) (<= 139 main_x)), 72112#(and (<= main_x 138) (<= 138 main_x)), 72115#(and (<= main_x 141) (<= 141 main_x)), 72114#(and (<= main_x 140) (<= 140 main_x)), 72117#(and (<= 143 main_x) (<= main_x 143)), 72116#(and (<= 142 main_x) (<= main_x 142)), 72119#(and (<= 145 main_x) (<= main_x 145)), 72118#(and (<= main_x 144) (<= 144 main_x)), 72121#(and (<= main_x 147) (<= 147 main_x)), 72120#(and (<= main_x 146) (<= 146 main_x)), 72123#(and (<= 149 main_x) (<= main_x 149)), 72122#(and (<= 148 main_x) (<= main_x 148)), 72125#(and (<= 151 main_x) (<= main_x 151)), 72124#(and (<= 150 main_x) (<= main_x 150)), 72127#(and (<= main_x 153) (<= 153 main_x)), 72126#(and (<= 152 main_x) (<= main_x 152)), 72129#(and (<= 155 main_x) (<= main_x 155)), 72128#(and (<= main_x 154) (<= 154 main_x)), 72131#(and (<= main_x 157) (<= 157 main_x)), 72130#(and (<= main_x 156) (<= 156 main_x)), 72133#(and (<= 159 main_x) (<= main_x 159)), 72132#(and (<= main_x 158) (<= 158 main_x)), 72135#(and (<= 161 main_x) (<= main_x 161)), 72134#(and (<= 160 main_x) (<= main_x 160)), 72137#(and (<= 163 main_x) (<= main_x 163)), 72136#(and (<= main_x 162) (<= 162 main_x)), 72139#(and (<= 165 main_x) (<= main_x 165)), 72138#(and (<= 164 main_x) (<= main_x 164)), 72140#(or (<= (+ main_x 90) 0) (<= 166 main_x))] [2018-07-23 13:54:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 13861 backedges. 0 proven. 13861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,955 INFO L450 AbstractCegarLoop]: Interpolant automaton has 169 states [2018-07-23 13:54:26,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2018-07-23 13:54:26,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=28057, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:54:26,956 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand 169 states. [2018-07-23 13:54:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:28,842 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2018-07-23 13:54:28,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2018-07-23 13:54:28,842 INFO L78 Accepts]: Start accepts. Automaton has 169 states. Word has length 168 [2018-07-23 13:54:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:28,843 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:54:28,843 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 13:54:28,844 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=335, Invalid=28057, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:54:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 13:54:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-07-23 13:54:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-07-23 13:54:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2018-07-23 13:54:28,852 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 168 [2018-07-23 13:54:28,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:28,853 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2018-07-23 13:54:28,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 169 states. [2018-07-23 13:54:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2018-07-23 13:54:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 13:54:28,853 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:28,853 INFO L357 BasicCegarLoop]: trace histogram [167, 1, 1] [2018-07-23 13:54:28,854 INFO L414 AbstractCegarLoop]: === Iteration 168 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:28,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1787765864, now seen corresponding path program 167 times [2018-07-23 13:54:28,854 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:30,332 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:30,332 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2018-07-23 13:54:30,332 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:30,332 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 13:54:30,333 INFO L185 omatonBuilderFactory]: Interpolants [72961#(and (<= main_x 136) (<= 136 main_x)), 72960#(and (<= main_x 135) (<= 135 main_x)), 72963#(and (<= main_x 138) (<= 138 main_x)), 72962#(and (<= 137 main_x) (<= main_x 137)), 72965#(and (<= main_x 140) (<= 140 main_x)), 72964#(and (<= main_x 139) (<= 139 main_x)), 72967#(and (<= 142 main_x) (<= main_x 142)), 72966#(and (<= main_x 141) (<= 141 main_x)), 72969#(and (<= main_x 144) (<= 144 main_x)), 72968#(and (<= 143 main_x) (<= main_x 143)), 72971#(and (<= main_x 146) (<= 146 main_x)), 72970#(and (<= 145 main_x) (<= main_x 145)), 72973#(and (<= 148 main_x) (<= main_x 148)), 72972#(and (<= main_x 147) (<= 147 main_x)), 72975#(and (<= 150 main_x) (<= main_x 150)), 72974#(and (<= 149 main_x) (<= main_x 149)), 72977#(and (<= 152 main_x) (<= main_x 152)), 72976#(and (<= 151 main_x) (<= main_x 151)), 72979#(and (<= main_x 154) (<= 154 main_x)), 72978#(and (<= main_x 153) (<= 153 main_x)), 72981#(and (<= main_x 156) (<= 156 main_x)), 72980#(and (<= 155 main_x) (<= main_x 155)), 72983#(and (<= main_x 158) (<= 158 main_x)), 72982#(and (<= main_x 157) (<= 157 main_x)), 72985#(and (<= 160 main_x) (<= main_x 160)), 72984#(and (<= 159 main_x) (<= main_x 159)), 72987#(and (<= main_x 162) (<= 162 main_x)), 72986#(and (<= 161 main_x) (<= main_x 161)), 72989#(and (<= 164 main_x) (<= main_x 164)), 72988#(and (<= 163 main_x) (<= main_x 163)), 72991#(and (<= main_x 166) (<= 166 main_x)), 72990#(and (<= 165 main_x) (<= main_x 165)), 72992#(or (<= 167 main_x) (<= (+ main_x 89) 0)), 72823#true, 72825#(and (<= main_x 0) (<= 0 main_x)), 72824#false, 72827#(and (<= 2 main_x) (<= main_x 2)), 72826#(and (<= 1 main_x) (<= main_x 1)), 72829#(and (<= main_x 4) (<= 4 main_x)), 72828#(and (<= 3 main_x) (<= main_x 3)), 72831#(and (<= 6 main_x) (<= main_x 6)), 72830#(and (<= 5 main_x) (<= main_x 5)), 72833#(and (<= main_x 8) (<= 8 main_x)), 72832#(and (<= main_x 7) (<= 7 main_x)), 72835#(and (<= main_x 10) (<= 10 main_x)), 72834#(and (<= 9 main_x) (<= main_x 9)), 72837#(and (<= 12 main_x) (<= main_x 12)), 72836#(and (<= 11 main_x) (<= main_x 11)), 72839#(and (<= 14 main_x) (<= main_x 14)), 72838#(and (<= 13 main_x) (<= main_x 13)), 72841#(and (<= main_x 16) (<= 16 main_x)), 72840#(and (<= 15 main_x) (<= main_x 15)), 72843#(and (<= main_x 18) (<= 18 main_x)), 72842#(and (<= 17 main_x) (<= main_x 17)), 72845#(and (<= 20 main_x) (<= main_x 20)), 72844#(and (<= main_x 19) (<= 19 main_x)), 72847#(and (<= main_x 22) (<= 22 main_x)), 72846#(and (<= 21 main_x) (<= main_x 21)), 72849#(and (<= main_x 24) (<= 24 main_x)), 72848#(and (<= 23 main_x) (<= main_x 23)), 72851#(and (<= main_x 26) (<= 26 main_x)), 72850#(and (<= main_x 25) (<= 25 main_x)), 72853#(and (<= main_x 28) (<= 28 main_x)), 72852#(and (<= main_x 27) (<= 27 main_x)), 72855#(and (<= 30 main_x) (<= main_x 30)), 72854#(and (<= main_x 29) (<= 29 main_x)), 72857#(and (<= 32 main_x) (<= main_x 32)), 72856#(and (<= 31 main_x) (<= main_x 31)), 72859#(and (<= 34 main_x) (<= main_x 34)), 72858#(and (<= main_x 33) (<= 33 main_x)), 72861#(and (<= main_x 36) (<= 36 main_x)), 72860#(and (<= main_x 35) (<= 35 main_x)), 72863#(and (<= 38 main_x) (<= main_x 38)), 72862#(and (<= 37 main_x) (<= main_x 37)), 72865#(and (<= main_x 40) (<= 40 main_x)), 72864#(and (<= 39 main_x) (<= main_x 39)), 72867#(and (<= 42 main_x) (<= main_x 42)), 72866#(and (<= 41 main_x) (<= main_x 41)), 72869#(and (<= main_x 44) (<= 44 main_x)), 72868#(and (<= 43 main_x) (<= main_x 43)), 72871#(and (<= 46 main_x) (<= main_x 46)), 72870#(and (<= 45 main_x) (<= main_x 45)), 72873#(and (<= 48 main_x) (<= main_x 48)), 72872#(and (<= 47 main_x) (<= main_x 47)), 72875#(and (<= main_x 50) (<= 50 main_x)), 72874#(and (<= main_x 49) (<= 49 main_x)), 72877#(and (<= 52 main_x) (<= main_x 52)), 72876#(and (<= main_x 51) (<= 51 main_x)), 72879#(and (<= 54 main_x) (<= main_x 54)), 72878#(and (<= main_x 53) (<= 53 main_x)), 72881#(and (<= main_x 56) (<= 56 main_x)), 72880#(and (<= 55 main_x) (<= main_x 55)), 72883#(and (<= 58 main_x) (<= main_x 58)), 72882#(and (<= main_x 57) (<= 57 main_x)), 72885#(and (<= main_x 60) (<= 60 main_x)), 72884#(and (<= 59 main_x) (<= main_x 59)), 72887#(and (<= main_x 62) (<= 62 main_x)), 72886#(and (<= main_x 61) (<= 61 main_x)), 72889#(and (<= 64 main_x) (<= main_x 64)), 72888#(and (<= 63 main_x) (<= main_x 63)), 72891#(and (<= main_x 66) (<= 66 main_x)), 72890#(and (<= main_x 65) (<= 65 main_x)), 72893#(and (<= main_x 68) (<= 68 main_x)), 72892#(and (<= 67 main_x) (<= main_x 67)), 72895#(and (<= main_x 70) (<= 70 main_x)), 72894#(and (<= 69 main_x) (<= main_x 69)), 72897#(and (<= main_x 72) (<= 72 main_x)), 72896#(and (<= 71 main_x) (<= main_x 71)), 72899#(and (<= 74 main_x) (<= main_x 74)), 72898#(and (<= main_x 73) (<= 73 main_x)), 72901#(and (<= main_x 76) (<= 76 main_x)), 72900#(and (<= main_x 75) (<= 75 main_x)), 72903#(and (<= 78 main_x) (<= main_x 78)), 72902#(and (<= 77 main_x) (<= main_x 77)), 72905#(and (<= main_x 80) (<= 80 main_x)), 72904#(and (<= 79 main_x) (<= main_x 79)), 72907#(and (<= 82 main_x) (<= main_x 82)), 72906#(and (<= 81 main_x) (<= main_x 81)), 72909#(and (<= main_x 84) (<= 84 main_x)), 72908#(and (<= 83 main_x) (<= main_x 83)), 72911#(and (<= 86 main_x) (<= main_x 86)), 72910#(and (<= 85 main_x) (<= main_x 85)), 72913#(and (<= 88 main_x) (<= main_x 88)), 72912#(and (<= 87 main_x) (<= main_x 87)), 72915#(and (<= 90 main_x) (<= main_x 90)), 72914#(and (<= 89 main_x) (<= main_x 89)), 72917#(and (<= main_x 92) (<= 92 main_x)), 72916#(and (<= main_x 91) (<= 91 main_x)), 72919#(and (<= 94 main_x) (<= main_x 94)), 72918#(and (<= 93 main_x) (<= main_x 93)), 72921#(and (<= 96 main_x) (<= main_x 96)), 72920#(and (<= 95 main_x) (<= main_x 95)), 72923#(and (<= main_x 98) (<= 98 main_x)), 72922#(and (<= main_x 97) (<= 97 main_x)), 72925#(and (<= main_x 100) (<= 100 main_x)), 72924#(and (<= 99 main_x) (<= main_x 99)), 72927#(and (<= main_x 102) (<= 102 main_x)), 72926#(and (<= 101 main_x) (<= main_x 101)), 72929#(and (<= main_x 104) (<= 104 main_x)), 72928#(and (<= main_x 103) (<= 103 main_x)), 72931#(and (<= 106 main_x) (<= main_x 106)), 72930#(and (<= main_x 105) (<= 105 main_x)), 72933#(and (<= 108 main_x) (<= main_x 108)), 72932#(and (<= main_x 107) (<= 107 main_x)), 72935#(and (<= main_x 110) (<= 110 main_x)), 72934#(and (<= 109 main_x) (<= main_x 109)), 72937#(and (<= main_x 112) (<= 112 main_x)), 72936#(and (<= main_x 111) (<= 111 main_x)), 72939#(and (<= 114 main_x) (<= main_x 114)), 72938#(and (<= main_x 113) (<= 113 main_x)), 72941#(and (<= 116 main_x) (<= main_x 116)), 72940#(and (<= 115 main_x) (<= main_x 115)), 72943#(and (<= 118 main_x) (<= main_x 118)), 72942#(and (<= 117 main_x) (<= main_x 117)), 72945#(and (<= main_x 120) (<= 120 main_x)), 72944#(and (<= main_x 119) (<= 119 main_x)), 72947#(and (<= 122 main_x) (<= main_x 122)), 72946#(and (<= 121 main_x) (<= main_x 121)), 72949#(and (<= main_x 124) (<= 124 main_x)), 72948#(and (<= main_x 123) (<= 123 main_x)), 72951#(and (<= 126 main_x) (<= main_x 126)), 72950#(and (<= main_x 125) (<= 125 main_x)), 72953#(and (<= main_x 128) (<= 128 main_x)), 72952#(and (<= main_x 127) (<= 127 main_x)), 72955#(and (<= main_x 130) (<= 130 main_x)), 72954#(and (<= 129 main_x) (<= main_x 129)), 72957#(and (<= 132 main_x) (<= main_x 132)), 72956#(and (<= main_x 131) (<= 131 main_x)), 72959#(and (<= main_x 134) (<= 134 main_x)), 72958#(and (<= main_x 133) (<= 133 main_x))] [2018-07-23 13:54:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 14028 backedges. 0 proven. 14028 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:30,334 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:54:30,334 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:54:30,335 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=337, Invalid=28393, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:54:30,335 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand 170 states. [2018-07-23 13:54:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:32,361 INFO L93 Difference]: Finished difference Result 172 states and 172 transitions. [2018-07-23 13:54:32,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:54:32,361 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 169 [2018-07-23 13:54:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:32,362 INFO L225 Difference]: With dead ends: 172 [2018-07-23 13:54:32,362 INFO L226 Difference]: Without dead ends: 171 [2018-07-23 13:54:32,363 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=337, Invalid=28393, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:54:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-07-23 13:54:32,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-07-23 13:54:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-07-23 13:54:32,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2018-07-23 13:54:32,370 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 169 [2018-07-23 13:54:32,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:32,370 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2018-07-23 13:54:32,370 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:54:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2018-07-23 13:54:32,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-23 13:54:32,370 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:32,370 INFO L357 BasicCegarLoop]: trace histogram [168, 1, 1] [2018-07-23 13:54:32,371 INFO L414 AbstractCegarLoop]: === Iteration 169 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:32,371 INFO L82 PathProgramCache]: Analyzing trace with hash 413833299, now seen corresponding path program 168 times [2018-07-23 13:54:32,371 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,852 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:33,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:54:33,852 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:33,853 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 13:54:33,853 INFO L185 omatonBuilderFactory]: Interpolants [73729#(and (<= 48 main_x) (<= main_x 48)), 73728#(and (<= 47 main_x) (<= main_x 47)), 73731#(and (<= main_x 50) (<= 50 main_x)), 73730#(and (<= main_x 49) (<= 49 main_x)), 73733#(and (<= 52 main_x) (<= main_x 52)), 73732#(and (<= main_x 51) (<= 51 main_x)), 73735#(and (<= 54 main_x) (<= main_x 54)), 73734#(and (<= main_x 53) (<= 53 main_x)), 73737#(and (<= main_x 56) (<= 56 main_x)), 73736#(and (<= 55 main_x) (<= main_x 55)), 73739#(and (<= 58 main_x) (<= main_x 58)), 73738#(and (<= main_x 57) (<= 57 main_x)), 73741#(and (<= main_x 60) (<= 60 main_x)), 73740#(and (<= 59 main_x) (<= main_x 59)), 73743#(and (<= main_x 62) (<= 62 main_x)), 73742#(and (<= main_x 61) (<= 61 main_x)), 73745#(and (<= 64 main_x) (<= main_x 64)), 73744#(and (<= 63 main_x) (<= main_x 63)), 73747#(and (<= main_x 66) (<= 66 main_x)), 73746#(and (<= main_x 65) (<= 65 main_x)), 73749#(and (<= main_x 68) (<= 68 main_x)), 73748#(and (<= 67 main_x) (<= main_x 67)), 73751#(and (<= main_x 70) (<= 70 main_x)), 73750#(and (<= 69 main_x) (<= main_x 69)), 73753#(and (<= main_x 72) (<= 72 main_x)), 73752#(and (<= 71 main_x) (<= main_x 71)), 73755#(and (<= 74 main_x) (<= main_x 74)), 73754#(and (<= main_x 73) (<= 73 main_x)), 73757#(and (<= main_x 76) (<= 76 main_x)), 73756#(and (<= main_x 75) (<= 75 main_x)), 73759#(and (<= 78 main_x) (<= main_x 78)), 73758#(and (<= 77 main_x) (<= main_x 77)), 73761#(and (<= main_x 80) (<= 80 main_x)), 73760#(and (<= 79 main_x) (<= main_x 79)), 73763#(and (<= 82 main_x) (<= main_x 82)), 73762#(and (<= 81 main_x) (<= main_x 81)), 73765#(and (<= main_x 84) (<= 84 main_x)), 73764#(and (<= 83 main_x) (<= main_x 83)), 73767#(and (<= 86 main_x) (<= main_x 86)), 73766#(and (<= 85 main_x) (<= main_x 85)), 73769#(and (<= 88 main_x) (<= main_x 88)), 73768#(and (<= 87 main_x) (<= main_x 87)), 73771#(and (<= 90 main_x) (<= main_x 90)), 73770#(and (<= 89 main_x) (<= main_x 89)), 73773#(and (<= main_x 92) (<= 92 main_x)), 73772#(and (<= main_x 91) (<= 91 main_x)), 73775#(and (<= 94 main_x) (<= main_x 94)), 73774#(and (<= 93 main_x) (<= main_x 93)), 73777#(and (<= 96 main_x) (<= main_x 96)), 73776#(and (<= 95 main_x) (<= main_x 95)), 73779#(and (<= main_x 98) (<= 98 main_x)), 73778#(and (<= main_x 97) (<= 97 main_x)), 73781#(and (<= main_x 100) (<= 100 main_x)), 73780#(and (<= 99 main_x) (<= main_x 99)), 73783#(and (<= main_x 102) (<= 102 main_x)), 73782#(and (<= 101 main_x) (<= main_x 101)), 73785#(and (<= main_x 104) (<= 104 main_x)), 73784#(and (<= main_x 103) (<= 103 main_x)), 73787#(and (<= 106 main_x) (<= main_x 106)), 73786#(and (<= main_x 105) (<= 105 main_x)), 73789#(and (<= 108 main_x) (<= main_x 108)), 73788#(and (<= main_x 107) (<= 107 main_x)), 73791#(and (<= main_x 110) (<= 110 main_x)), 73790#(and (<= 109 main_x) (<= main_x 109)), 73793#(and (<= main_x 112) (<= 112 main_x)), 73792#(and (<= main_x 111) (<= 111 main_x)), 73795#(and (<= 114 main_x) (<= main_x 114)), 73794#(and (<= main_x 113) (<= 113 main_x)), 73797#(and (<= 116 main_x) (<= main_x 116)), 73796#(and (<= 115 main_x) (<= main_x 115)), 73799#(and (<= 118 main_x) (<= main_x 118)), 73798#(and (<= 117 main_x) (<= main_x 117)), 73801#(and (<= main_x 120) (<= 120 main_x)), 73800#(and (<= main_x 119) (<= 119 main_x)), 73803#(and (<= 122 main_x) (<= main_x 122)), 73802#(and (<= 121 main_x) (<= main_x 121)), 73805#(and (<= main_x 124) (<= 124 main_x)), 73804#(and (<= main_x 123) (<= 123 main_x)), 73807#(and (<= 126 main_x) (<= main_x 126)), 73806#(and (<= main_x 125) (<= 125 main_x)), 73809#(and (<= main_x 128) (<= 128 main_x)), 73808#(and (<= main_x 127) (<= 127 main_x)), 73811#(and (<= main_x 130) (<= 130 main_x)), 73810#(and (<= 129 main_x) (<= main_x 129)), 73813#(and (<= 132 main_x) (<= main_x 132)), 73812#(and (<= main_x 131) (<= 131 main_x)), 73815#(and (<= main_x 134) (<= 134 main_x)), 73814#(and (<= main_x 133) (<= 133 main_x)), 73817#(and (<= main_x 136) (<= 136 main_x)), 73816#(and (<= main_x 135) (<= 135 main_x)), 73819#(and (<= main_x 138) (<= 138 main_x)), 73818#(and (<= 137 main_x) (<= main_x 137)), 73821#(and (<= main_x 140) (<= 140 main_x)), 73820#(and (<= main_x 139) (<= 139 main_x)), 73823#(and (<= 142 main_x) (<= main_x 142)), 73822#(and (<= main_x 141) (<= 141 main_x)), 73825#(and (<= main_x 144) (<= 144 main_x)), 73824#(and (<= 143 main_x) (<= main_x 143)), 73827#(and (<= main_x 146) (<= 146 main_x)), 73826#(and (<= 145 main_x) (<= main_x 145)), 73829#(and (<= 148 main_x) (<= main_x 148)), 73828#(and (<= main_x 147) (<= 147 main_x)), 73831#(and (<= 150 main_x) (<= main_x 150)), 73830#(and (<= 149 main_x) (<= main_x 149)), 73833#(and (<= 152 main_x) (<= main_x 152)), 73832#(and (<= 151 main_x) (<= main_x 151)), 73835#(and (<= main_x 154) (<= 154 main_x)), 73834#(and (<= main_x 153) (<= 153 main_x)), 73837#(and (<= main_x 156) (<= 156 main_x)), 73836#(and (<= 155 main_x) (<= main_x 155)), 73839#(and (<= main_x 158) (<= 158 main_x)), 73838#(and (<= main_x 157) (<= 157 main_x)), 73841#(and (<= 160 main_x) (<= main_x 160)), 73840#(and (<= 159 main_x) (<= main_x 159)), 73843#(and (<= main_x 162) (<= 162 main_x)), 73842#(and (<= 161 main_x) (<= main_x 161)), 73845#(and (<= 164 main_x) (<= main_x 164)), 73844#(and (<= 163 main_x) (<= main_x 163)), 73847#(and (<= main_x 166) (<= 166 main_x)), 73846#(and (<= 165 main_x) (<= main_x 165)), 73849#(or (<= 168 main_x) (<= (+ main_x 88) 0)), 73848#(and (<= 167 main_x) (<= main_x 167)), 73679#true, 73681#(and (<= main_x 0) (<= 0 main_x)), 73680#false, 73683#(and (<= 2 main_x) (<= main_x 2)), 73682#(and (<= 1 main_x) (<= main_x 1)), 73685#(and (<= main_x 4) (<= 4 main_x)), 73684#(and (<= 3 main_x) (<= main_x 3)), 73687#(and (<= 6 main_x) (<= main_x 6)), 73686#(and (<= 5 main_x) (<= main_x 5)), 73689#(and (<= main_x 8) (<= 8 main_x)), 73688#(and (<= main_x 7) (<= 7 main_x)), 73691#(and (<= main_x 10) (<= 10 main_x)), 73690#(and (<= 9 main_x) (<= main_x 9)), 73693#(and (<= 12 main_x) (<= main_x 12)), 73692#(and (<= 11 main_x) (<= main_x 11)), 73695#(and (<= 14 main_x) (<= main_x 14)), 73694#(and (<= 13 main_x) (<= main_x 13)), 73697#(and (<= main_x 16) (<= 16 main_x)), 73696#(and (<= 15 main_x) (<= main_x 15)), 73699#(and (<= main_x 18) (<= 18 main_x)), 73698#(and (<= 17 main_x) (<= main_x 17)), 73701#(and (<= 20 main_x) (<= main_x 20)), 73700#(and (<= main_x 19) (<= 19 main_x)), 73703#(and (<= main_x 22) (<= 22 main_x)), 73702#(and (<= 21 main_x) (<= main_x 21)), 73705#(and (<= main_x 24) (<= 24 main_x)), 73704#(and (<= 23 main_x) (<= main_x 23)), 73707#(and (<= main_x 26) (<= 26 main_x)), 73706#(and (<= main_x 25) (<= 25 main_x)), 73709#(and (<= main_x 28) (<= 28 main_x)), 73708#(and (<= main_x 27) (<= 27 main_x)), 73711#(and (<= 30 main_x) (<= main_x 30)), 73710#(and (<= main_x 29) (<= 29 main_x)), 73713#(and (<= 32 main_x) (<= main_x 32)), 73712#(and (<= 31 main_x) (<= main_x 31)), 73715#(and (<= 34 main_x) (<= main_x 34)), 73714#(and (<= main_x 33) (<= 33 main_x)), 73717#(and (<= main_x 36) (<= 36 main_x)), 73716#(and (<= main_x 35) (<= 35 main_x)), 73719#(and (<= 38 main_x) (<= main_x 38)), 73718#(and (<= 37 main_x) (<= main_x 37)), 73721#(and (<= main_x 40) (<= 40 main_x)), 73720#(and (<= 39 main_x) (<= main_x 39)), 73723#(and (<= 42 main_x) (<= main_x 42)), 73722#(and (<= 41 main_x) (<= main_x 41)), 73725#(and (<= main_x 44) (<= 44 main_x)), 73724#(and (<= 43 main_x) (<= main_x 43)), 73727#(and (<= 46 main_x) (<= main_x 46)), 73726#(and (<= 45 main_x) (<= main_x 45))] [2018-07-23 13:54:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 14196 backedges. 0 proven. 14196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,854 INFO L450 AbstractCegarLoop]: Interpolant automaton has 171 states [2018-07-23 13:54:33,854 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2018-07-23 13:54:33,855 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=28731, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:54:33,855 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand 171 states. [2018-07-23 13:54:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:35,881 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2018-07-23 13:54:35,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-07-23 13:54:35,882 INFO L78 Accepts]: Start accepts. Automaton has 171 states. Word has length 170 [2018-07-23 13:54:35,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:35,882 INFO L225 Difference]: With dead ends: 173 [2018-07-23 13:54:35,882 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:54:35,884 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=339, Invalid=28731, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:54:35,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:54:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:54:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:54:35,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2018-07-23 13:54:35,890 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 170 [2018-07-23 13:54:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:35,890 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2018-07-23 13:54:35,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 171 states. [2018-07-23 13:54:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2018-07-23 13:54:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:54:35,891 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:35,891 INFO L357 BasicCegarLoop]: trace histogram [169, 1, 1] [2018-07-23 13:54:35,891 INFO L414 AbstractCegarLoop]: === Iteration 170 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:35,891 INFO L82 PathProgramCache]: Analyzing trace with hash -56069384, now seen corresponding path program 169 times [2018-07-23 13:54:35,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:37,278 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:37,278 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2018-07-23 13:54:37,278 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:37,278 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 13:54:37,279 INFO L185 omatonBuilderFactory]: Interpolants [74541#false, 74540#true, 74543#(and (<= 1 main_x) (<= main_x 1)), 74542#(and (<= main_x 0) (<= 0 main_x)), 74545#(and (<= 3 main_x) (<= main_x 3)), 74544#(and (<= 2 main_x) (<= main_x 2)), 74547#(and (<= 5 main_x) (<= main_x 5)), 74546#(and (<= main_x 4) (<= 4 main_x)), 74549#(and (<= main_x 7) (<= 7 main_x)), 74548#(and (<= 6 main_x) (<= main_x 6)), 74551#(and (<= 9 main_x) (<= main_x 9)), 74550#(and (<= main_x 8) (<= 8 main_x)), 74553#(and (<= 11 main_x) (<= main_x 11)), 74552#(and (<= main_x 10) (<= 10 main_x)), 74555#(and (<= 13 main_x) (<= main_x 13)), 74554#(and (<= 12 main_x) (<= main_x 12)), 74557#(and (<= 15 main_x) (<= main_x 15)), 74556#(and (<= 14 main_x) (<= main_x 14)), 74559#(and (<= 17 main_x) (<= main_x 17)), 74558#(and (<= main_x 16) (<= 16 main_x)), 74561#(and (<= main_x 19) (<= 19 main_x)), 74560#(and (<= main_x 18) (<= 18 main_x)), 74563#(and (<= 21 main_x) (<= main_x 21)), 74562#(and (<= 20 main_x) (<= main_x 20)), 74565#(and (<= 23 main_x) (<= main_x 23)), 74564#(and (<= main_x 22) (<= 22 main_x)), 74567#(and (<= main_x 25) (<= 25 main_x)), 74566#(and (<= main_x 24) (<= 24 main_x)), 74569#(and (<= main_x 27) (<= 27 main_x)), 74568#(and (<= main_x 26) (<= 26 main_x)), 74571#(and (<= main_x 29) (<= 29 main_x)), 74570#(and (<= main_x 28) (<= 28 main_x)), 74573#(and (<= 31 main_x) (<= main_x 31)), 74572#(and (<= 30 main_x) (<= main_x 30)), 74575#(and (<= main_x 33) (<= 33 main_x)), 74574#(and (<= 32 main_x) (<= main_x 32)), 74577#(and (<= main_x 35) (<= 35 main_x)), 74576#(and (<= 34 main_x) (<= main_x 34)), 74579#(and (<= 37 main_x) (<= main_x 37)), 74578#(and (<= main_x 36) (<= 36 main_x)), 74581#(and (<= 39 main_x) (<= main_x 39)), 74580#(and (<= 38 main_x) (<= main_x 38)), 74583#(and (<= 41 main_x) (<= main_x 41)), 74582#(and (<= main_x 40) (<= 40 main_x)), 74585#(and (<= 43 main_x) (<= main_x 43)), 74584#(and (<= 42 main_x) (<= main_x 42)), 74587#(and (<= 45 main_x) (<= main_x 45)), 74586#(and (<= main_x 44) (<= 44 main_x)), 74589#(and (<= 47 main_x) (<= main_x 47)), 74588#(and (<= 46 main_x) (<= main_x 46)), 74591#(and (<= main_x 49) (<= 49 main_x)), 74590#(and (<= 48 main_x) (<= main_x 48)), 74593#(and (<= main_x 51) (<= 51 main_x)), 74592#(and (<= main_x 50) (<= 50 main_x)), 74595#(and (<= main_x 53) (<= 53 main_x)), 74594#(and (<= 52 main_x) (<= main_x 52)), 74597#(and (<= 55 main_x) (<= main_x 55)), 74596#(and (<= 54 main_x) (<= main_x 54)), 74599#(and (<= main_x 57) (<= 57 main_x)), 74598#(and (<= main_x 56) (<= 56 main_x)), 74601#(and (<= 59 main_x) (<= main_x 59)), 74600#(and (<= 58 main_x) (<= main_x 58)), 74603#(and (<= main_x 61) (<= 61 main_x)), 74602#(and (<= main_x 60) (<= 60 main_x)), 74605#(and (<= 63 main_x) (<= main_x 63)), 74604#(and (<= main_x 62) (<= 62 main_x)), 74607#(and (<= main_x 65) (<= 65 main_x)), 74606#(and (<= 64 main_x) (<= main_x 64)), 74609#(and (<= 67 main_x) (<= main_x 67)), 74608#(and (<= main_x 66) (<= 66 main_x)), 74611#(and (<= 69 main_x) (<= main_x 69)), 74610#(and (<= main_x 68) (<= 68 main_x)), 74613#(and (<= 71 main_x) (<= main_x 71)), 74612#(and (<= main_x 70) (<= 70 main_x)), 74615#(and (<= main_x 73) (<= 73 main_x)), 74614#(and (<= main_x 72) (<= 72 main_x)), 74617#(and (<= main_x 75) (<= 75 main_x)), 74616#(and (<= 74 main_x) (<= main_x 74)), 74619#(and (<= 77 main_x) (<= main_x 77)), 74618#(and (<= main_x 76) (<= 76 main_x)), 74621#(and (<= 79 main_x) (<= main_x 79)), 74620#(and (<= 78 main_x) (<= main_x 78)), 74623#(and (<= 81 main_x) (<= main_x 81)), 74622#(and (<= main_x 80) (<= 80 main_x)), 74625#(and (<= 83 main_x) (<= main_x 83)), 74624#(and (<= 82 main_x) (<= main_x 82)), 74627#(and (<= 85 main_x) (<= main_x 85)), 74626#(and (<= main_x 84) (<= 84 main_x)), 74629#(and (<= 87 main_x) (<= main_x 87)), 74628#(and (<= 86 main_x) (<= main_x 86)), 74631#(and (<= 89 main_x) (<= main_x 89)), 74630#(and (<= 88 main_x) (<= main_x 88)), 74633#(and (<= main_x 91) (<= 91 main_x)), 74632#(and (<= 90 main_x) (<= main_x 90)), 74635#(and (<= 93 main_x) (<= main_x 93)), 74634#(and (<= main_x 92) (<= 92 main_x)), 74637#(and (<= 95 main_x) (<= main_x 95)), 74636#(and (<= 94 main_x) (<= main_x 94)), 74639#(and (<= main_x 97) (<= 97 main_x)), 74638#(and (<= 96 main_x) (<= main_x 96)), 74641#(and (<= 99 main_x) (<= main_x 99)), 74640#(and (<= main_x 98) (<= 98 main_x)), 74643#(and (<= 101 main_x) (<= main_x 101)), 74642#(and (<= main_x 100) (<= 100 main_x)), 74645#(and (<= main_x 103) (<= 103 main_x)), 74644#(and (<= main_x 102) (<= 102 main_x)), 74647#(and (<= main_x 105) (<= 105 main_x)), 74646#(and (<= main_x 104) (<= 104 main_x)), 74649#(and (<= main_x 107) (<= 107 main_x)), 74648#(and (<= 106 main_x) (<= main_x 106)), 74651#(and (<= 109 main_x) (<= main_x 109)), 74650#(and (<= 108 main_x) (<= main_x 108)), 74653#(and (<= main_x 111) (<= 111 main_x)), 74652#(and (<= main_x 110) (<= 110 main_x)), 74655#(and (<= main_x 113) (<= 113 main_x)), 74654#(and (<= main_x 112) (<= 112 main_x)), 74657#(and (<= 115 main_x) (<= main_x 115)), 74656#(and (<= 114 main_x) (<= main_x 114)), 74659#(and (<= 117 main_x) (<= main_x 117)), 74658#(and (<= 116 main_x) (<= main_x 116)), 74661#(and (<= main_x 119) (<= 119 main_x)), 74660#(and (<= 118 main_x) (<= main_x 118)), 74663#(and (<= 121 main_x) (<= main_x 121)), 74662#(and (<= main_x 120) (<= 120 main_x)), 74665#(and (<= main_x 123) (<= 123 main_x)), 74664#(and (<= 122 main_x) (<= main_x 122)), 74667#(and (<= main_x 125) (<= 125 main_x)), 74666#(and (<= main_x 124) (<= 124 main_x)), 74669#(and (<= main_x 127) (<= 127 main_x)), 74668#(and (<= 126 main_x) (<= main_x 126)), 74671#(and (<= 129 main_x) (<= main_x 129)), 74670#(and (<= main_x 128) (<= 128 main_x)), 74673#(and (<= main_x 131) (<= 131 main_x)), 74672#(and (<= main_x 130) (<= 130 main_x)), 74675#(and (<= main_x 133) (<= 133 main_x)), 74674#(and (<= 132 main_x) (<= main_x 132)), 74677#(and (<= main_x 135) (<= 135 main_x)), 74676#(and (<= main_x 134) (<= 134 main_x)), 74679#(and (<= 137 main_x) (<= main_x 137)), 74678#(and (<= main_x 136) (<= 136 main_x)), 74681#(and (<= main_x 139) (<= 139 main_x)), 74680#(and (<= main_x 138) (<= 138 main_x)), 74683#(and (<= main_x 141) (<= 141 main_x)), 74682#(and (<= main_x 140) (<= 140 main_x)), 74685#(and (<= 143 main_x) (<= main_x 143)), 74684#(and (<= 142 main_x) (<= main_x 142)), 74687#(and (<= 145 main_x) (<= main_x 145)), 74686#(and (<= main_x 144) (<= 144 main_x)), 74689#(and (<= main_x 147) (<= 147 main_x)), 74688#(and (<= main_x 146) (<= 146 main_x)), 74691#(and (<= 149 main_x) (<= main_x 149)), 74690#(and (<= 148 main_x) (<= main_x 148)), 74693#(and (<= 151 main_x) (<= main_x 151)), 74692#(and (<= 150 main_x) (<= main_x 150)), 74695#(and (<= main_x 153) (<= 153 main_x)), 74694#(and (<= 152 main_x) (<= main_x 152)), 74697#(and (<= 155 main_x) (<= main_x 155)), 74696#(and (<= main_x 154) (<= 154 main_x)), 74699#(and (<= main_x 157) (<= 157 main_x)), 74698#(and (<= main_x 156) (<= 156 main_x)), 74701#(and (<= 159 main_x) (<= main_x 159)), 74700#(and (<= main_x 158) (<= 158 main_x)), 74703#(and (<= 161 main_x) (<= main_x 161)), 74702#(and (<= 160 main_x) (<= main_x 160)), 74705#(and (<= 163 main_x) (<= main_x 163)), 74704#(and (<= main_x 162) (<= 162 main_x)), 74707#(and (<= 165 main_x) (<= main_x 165)), 74706#(and (<= 164 main_x) (<= main_x 164)), 74709#(and (<= 167 main_x) (<= main_x 167)), 74708#(and (<= main_x 166) (<= 166 main_x)), 74711#(or (<= (+ main_x 87) 0) (<= 169 main_x)), 74710#(and (<= main_x 168) (<= 168 main_x))] [2018-07-23 13:54:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 14365 backedges. 0 proven. 14365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:37,279 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:54:37,280 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:54:37,281 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=341, Invalid=29071, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:54:37,281 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand 172 states. [2018-07-23 13:54:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:39,315 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2018-07-23 13:54:39,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:54:39,315 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 171 [2018-07-23 13:54:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:39,315 INFO L225 Difference]: With dead ends: 174 [2018-07-23 13:54:39,316 INFO L226 Difference]: Without dead ends: 173 [2018-07-23 13:54:39,317 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=341, Invalid=29071, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:54:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2018-07-23 13:54:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2018-07-23 13:54:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-23 13:54:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2018-07-23 13:54:39,324 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 171 [2018-07-23 13:54:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:39,324 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2018-07-23 13:54:39,324 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:54:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2018-07-23 13:54:39,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-07-23 13:54:39,324 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:39,324 INFO L357 BasicCegarLoop]: trace histogram [170, 1, 1] [2018-07-23 13:54:39,324 INFO L414 AbstractCegarLoop]: === Iteration 171 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:39,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1738150669, now seen corresponding path program 170 times [2018-07-23 13:54:39,325 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:40,873 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,873 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:40,873 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:54:40,874 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:40,874 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 13:54:40,874 INFO L185 omatonBuilderFactory]: Interpolants [75521#(and (<= main_x 113) (<= 113 main_x)), 75520#(and (<= main_x 112) (<= 112 main_x)), 75523#(and (<= 115 main_x) (<= main_x 115)), 75522#(and (<= 114 main_x) (<= main_x 114)), 75525#(and (<= 117 main_x) (<= main_x 117)), 75524#(and (<= 116 main_x) (<= main_x 116)), 75527#(and (<= main_x 119) (<= 119 main_x)), 75526#(and (<= 118 main_x) (<= main_x 118)), 75529#(and (<= 121 main_x) (<= main_x 121)), 75528#(and (<= main_x 120) (<= 120 main_x)), 75531#(and (<= main_x 123) (<= 123 main_x)), 75530#(and (<= 122 main_x) (<= main_x 122)), 75533#(and (<= main_x 125) (<= 125 main_x)), 75532#(and (<= main_x 124) (<= 124 main_x)), 75535#(and (<= main_x 127) (<= 127 main_x)), 75534#(and (<= 126 main_x) (<= main_x 126)), 75537#(and (<= 129 main_x) (<= main_x 129)), 75536#(and (<= main_x 128) (<= 128 main_x)), 75539#(and (<= main_x 131) (<= 131 main_x)), 75538#(and (<= main_x 130) (<= 130 main_x)), 75541#(and (<= main_x 133) (<= 133 main_x)), 75540#(and (<= 132 main_x) (<= main_x 132)), 75543#(and (<= main_x 135) (<= 135 main_x)), 75542#(and (<= main_x 134) (<= 134 main_x)), 75545#(and (<= 137 main_x) (<= main_x 137)), 75544#(and (<= main_x 136) (<= 136 main_x)), 75547#(and (<= main_x 139) (<= 139 main_x)), 75546#(and (<= main_x 138) (<= 138 main_x)), 75549#(and (<= main_x 141) (<= 141 main_x)), 75548#(and (<= main_x 140) (<= 140 main_x)), 75551#(and (<= 143 main_x) (<= main_x 143)), 75550#(and (<= 142 main_x) (<= main_x 142)), 75553#(and (<= 145 main_x) (<= main_x 145)), 75552#(and (<= main_x 144) (<= 144 main_x)), 75555#(and (<= main_x 147) (<= 147 main_x)), 75554#(and (<= main_x 146) (<= 146 main_x)), 75557#(and (<= 149 main_x) (<= main_x 149)), 75556#(and (<= 148 main_x) (<= main_x 148)), 75559#(and (<= 151 main_x) (<= main_x 151)), 75558#(and (<= 150 main_x) (<= main_x 150)), 75561#(and (<= main_x 153) (<= 153 main_x)), 75560#(and (<= 152 main_x) (<= main_x 152)), 75563#(and (<= 155 main_x) (<= main_x 155)), 75562#(and (<= main_x 154) (<= 154 main_x)), 75565#(and (<= main_x 157) (<= 157 main_x)), 75564#(and (<= main_x 156) (<= 156 main_x)), 75567#(and (<= 159 main_x) (<= main_x 159)), 75566#(and (<= main_x 158) (<= 158 main_x)), 75569#(and (<= 161 main_x) (<= main_x 161)), 75568#(and (<= 160 main_x) (<= main_x 160)), 75571#(and (<= 163 main_x) (<= main_x 163)), 75570#(and (<= main_x 162) (<= 162 main_x)), 75573#(and (<= 165 main_x) (<= main_x 165)), 75572#(and (<= 164 main_x) (<= main_x 164)), 75575#(and (<= 167 main_x) (<= main_x 167)), 75574#(and (<= main_x 166) (<= 166 main_x)), 75577#(and (<= main_x 169) (<= 169 main_x)), 75576#(and (<= main_x 168) (<= 168 main_x)), 75578#(or (<= 170 main_x) (<= (+ main_x 86) 0)), 75407#false, 75406#true, 75409#(and (<= 1 main_x) (<= main_x 1)), 75408#(and (<= main_x 0) (<= 0 main_x)), 75411#(and (<= 3 main_x) (<= main_x 3)), 75410#(and (<= 2 main_x) (<= main_x 2)), 75413#(and (<= 5 main_x) (<= main_x 5)), 75412#(and (<= main_x 4) (<= 4 main_x)), 75415#(and (<= main_x 7) (<= 7 main_x)), 75414#(and (<= 6 main_x) (<= main_x 6)), 75417#(and (<= 9 main_x) (<= main_x 9)), 75416#(and (<= main_x 8) (<= 8 main_x)), 75419#(and (<= 11 main_x) (<= main_x 11)), 75418#(and (<= main_x 10) (<= 10 main_x)), 75421#(and (<= 13 main_x) (<= main_x 13)), 75420#(and (<= 12 main_x) (<= main_x 12)), 75423#(and (<= 15 main_x) (<= main_x 15)), 75422#(and (<= 14 main_x) (<= main_x 14)), 75425#(and (<= 17 main_x) (<= main_x 17)), 75424#(and (<= main_x 16) (<= 16 main_x)), 75427#(and (<= main_x 19) (<= 19 main_x)), 75426#(and (<= main_x 18) (<= 18 main_x)), 75429#(and (<= 21 main_x) (<= main_x 21)), 75428#(and (<= 20 main_x) (<= main_x 20)), 75431#(and (<= 23 main_x) (<= main_x 23)), 75430#(and (<= main_x 22) (<= 22 main_x)), 75433#(and (<= main_x 25) (<= 25 main_x)), 75432#(and (<= main_x 24) (<= 24 main_x)), 75435#(and (<= main_x 27) (<= 27 main_x)), 75434#(and (<= main_x 26) (<= 26 main_x)), 75437#(and (<= main_x 29) (<= 29 main_x)), 75436#(and (<= main_x 28) (<= 28 main_x)), 75439#(and (<= 31 main_x) (<= main_x 31)), 75438#(and (<= 30 main_x) (<= main_x 30)), 75441#(and (<= main_x 33) (<= 33 main_x)), 75440#(and (<= 32 main_x) (<= main_x 32)), 75443#(and (<= main_x 35) (<= 35 main_x)), 75442#(and (<= 34 main_x) (<= main_x 34)), 75445#(and (<= 37 main_x) (<= main_x 37)), 75444#(and (<= main_x 36) (<= 36 main_x)), 75447#(and (<= 39 main_x) (<= main_x 39)), 75446#(and (<= 38 main_x) (<= main_x 38)), 75449#(and (<= 41 main_x) (<= main_x 41)), 75448#(and (<= main_x 40) (<= 40 main_x)), 75451#(and (<= 43 main_x) (<= main_x 43)), 75450#(and (<= 42 main_x) (<= main_x 42)), 75453#(and (<= 45 main_x) (<= main_x 45)), 75452#(and (<= main_x 44) (<= 44 main_x)), 75455#(and (<= 47 main_x) (<= main_x 47)), 75454#(and (<= 46 main_x) (<= main_x 46)), 75457#(and (<= main_x 49) (<= 49 main_x)), 75456#(and (<= 48 main_x) (<= main_x 48)), 75459#(and (<= main_x 51) (<= 51 main_x)), 75458#(and (<= main_x 50) (<= 50 main_x)), 75461#(and (<= main_x 53) (<= 53 main_x)), 75460#(and (<= 52 main_x) (<= main_x 52)), 75463#(and (<= 55 main_x) (<= main_x 55)), 75462#(and (<= 54 main_x) (<= main_x 54)), 75465#(and (<= main_x 57) (<= 57 main_x)), 75464#(and (<= main_x 56) (<= 56 main_x)), 75467#(and (<= 59 main_x) (<= main_x 59)), 75466#(and (<= 58 main_x) (<= main_x 58)), 75469#(and (<= main_x 61) (<= 61 main_x)), 75468#(and (<= main_x 60) (<= 60 main_x)), 75471#(and (<= 63 main_x) (<= main_x 63)), 75470#(and (<= main_x 62) (<= 62 main_x)), 75473#(and (<= main_x 65) (<= 65 main_x)), 75472#(and (<= 64 main_x) (<= main_x 64)), 75475#(and (<= 67 main_x) (<= main_x 67)), 75474#(and (<= main_x 66) (<= 66 main_x)), 75477#(and (<= 69 main_x) (<= main_x 69)), 75476#(and (<= main_x 68) (<= 68 main_x)), 75479#(and (<= 71 main_x) (<= main_x 71)), 75478#(and (<= main_x 70) (<= 70 main_x)), 75481#(and (<= main_x 73) (<= 73 main_x)), 75480#(and (<= main_x 72) (<= 72 main_x)), 75483#(and (<= main_x 75) (<= 75 main_x)), 75482#(and (<= 74 main_x) (<= main_x 74)), 75485#(and (<= 77 main_x) (<= main_x 77)), 75484#(and (<= main_x 76) (<= 76 main_x)), 75487#(and (<= 79 main_x) (<= main_x 79)), 75486#(and (<= 78 main_x) (<= main_x 78)), 75489#(and (<= 81 main_x) (<= main_x 81)), 75488#(and (<= main_x 80) (<= 80 main_x)), 75491#(and (<= 83 main_x) (<= main_x 83)), 75490#(and (<= 82 main_x) (<= main_x 82)), 75493#(and (<= 85 main_x) (<= main_x 85)), 75492#(and (<= main_x 84) (<= 84 main_x)), 75495#(and (<= 87 main_x) (<= main_x 87)), 75494#(and (<= 86 main_x) (<= main_x 86)), 75497#(and (<= 89 main_x) (<= main_x 89)), 75496#(and (<= 88 main_x) (<= main_x 88)), 75499#(and (<= main_x 91) (<= 91 main_x)), 75498#(and (<= 90 main_x) (<= main_x 90)), 75501#(and (<= 93 main_x) (<= main_x 93)), 75500#(and (<= main_x 92) (<= 92 main_x)), 75503#(and (<= 95 main_x) (<= main_x 95)), 75502#(and (<= 94 main_x) (<= main_x 94)), 75505#(and (<= main_x 97) (<= 97 main_x)), 75504#(and (<= 96 main_x) (<= main_x 96)), 75507#(and (<= 99 main_x) (<= main_x 99)), 75506#(and (<= main_x 98) (<= 98 main_x)), 75509#(and (<= 101 main_x) (<= main_x 101)), 75508#(and (<= main_x 100) (<= 100 main_x)), 75511#(and (<= main_x 103) (<= 103 main_x)), 75510#(and (<= main_x 102) (<= 102 main_x)), 75513#(and (<= main_x 105) (<= 105 main_x)), 75512#(and (<= main_x 104) (<= 104 main_x)), 75515#(and (<= main_x 107) (<= 107 main_x)), 75514#(and (<= 106 main_x) (<= main_x 106)), 75517#(and (<= 109 main_x) (<= main_x 109)), 75516#(and (<= 108 main_x) (<= main_x 108)), 75519#(and (<= main_x 111) (<= 111 main_x)), 75518#(and (<= main_x 110) (<= 110 main_x))] [2018-07-23 13:54:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14535 backedges. 0 proven. 14535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,876 INFO L450 AbstractCegarLoop]: Interpolant automaton has 173 states [2018-07-23 13:54:40,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2018-07-23 13:54:40,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=29413, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:54:40,878 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand 173 states. [2018-07-23 13:54:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:42,956 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2018-07-23 13:54:42,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-07-23 13:54:42,956 INFO L78 Accepts]: Start accepts. Automaton has 173 states. Word has length 172 [2018-07-23 13:54:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:42,957 INFO L225 Difference]: With dead ends: 175 [2018-07-23 13:54:42,957 INFO L226 Difference]: Without dead ends: 174 [2018-07-23 13:54:42,959 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=343, Invalid=29413, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:54:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-07-23 13:54:42,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-07-23 13:54:42,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:54:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2018-07-23 13:54:42,965 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 172 [2018-07-23 13:54:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:42,965 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2018-07-23 13:54:42,965 INFO L472 AbstractCegarLoop]: Interpolant automaton has 173 states. [2018-07-23 13:54:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2018-07-23 13:54:42,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:54:42,966 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:42,966 INFO L357 BasicCegarLoop]: trace histogram [171, 1, 1] [2018-07-23 13:54:42,966 INFO L414 AbstractCegarLoop]: === Iteration 172 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1951904344, now seen corresponding path program 171 times [2018-07-23 13:54:42,966 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:44,524 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:44,525 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2018-07-23 13:54:44,525 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:44,525 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 13:54:44,525 INFO L185 omatonBuilderFactory]: Interpolants [76289#(and (<= main_x 10) (<= 10 main_x)), 76288#(and (<= 9 main_x) (<= main_x 9)), 76291#(and (<= 12 main_x) (<= main_x 12)), 76290#(and (<= 11 main_x) (<= main_x 11)), 76293#(and (<= 14 main_x) (<= main_x 14)), 76292#(and (<= 13 main_x) (<= main_x 13)), 76295#(and (<= main_x 16) (<= 16 main_x)), 76294#(and (<= 15 main_x) (<= main_x 15)), 76297#(and (<= main_x 18) (<= 18 main_x)), 76296#(and (<= 17 main_x) (<= main_x 17)), 76299#(and (<= 20 main_x) (<= main_x 20)), 76298#(and (<= main_x 19) (<= 19 main_x)), 76301#(and (<= main_x 22) (<= 22 main_x)), 76300#(and (<= 21 main_x) (<= main_x 21)), 76303#(and (<= main_x 24) (<= 24 main_x)), 76302#(and (<= 23 main_x) (<= main_x 23)), 76305#(and (<= main_x 26) (<= 26 main_x)), 76304#(and (<= main_x 25) (<= 25 main_x)), 76307#(and (<= main_x 28) (<= 28 main_x)), 76306#(and (<= main_x 27) (<= 27 main_x)), 76309#(and (<= 30 main_x) (<= main_x 30)), 76308#(and (<= main_x 29) (<= 29 main_x)), 76311#(and (<= 32 main_x) (<= main_x 32)), 76310#(and (<= 31 main_x) (<= main_x 31)), 76313#(and (<= 34 main_x) (<= main_x 34)), 76312#(and (<= main_x 33) (<= 33 main_x)), 76315#(and (<= main_x 36) (<= 36 main_x)), 76314#(and (<= main_x 35) (<= 35 main_x)), 76317#(and (<= 38 main_x) (<= main_x 38)), 76316#(and (<= 37 main_x) (<= main_x 37)), 76319#(and (<= main_x 40) (<= 40 main_x)), 76318#(and (<= 39 main_x) (<= main_x 39)), 76321#(and (<= 42 main_x) (<= main_x 42)), 76320#(and (<= 41 main_x) (<= main_x 41)), 76323#(and (<= main_x 44) (<= 44 main_x)), 76322#(and (<= 43 main_x) (<= main_x 43)), 76325#(and (<= 46 main_x) (<= main_x 46)), 76324#(and (<= 45 main_x) (<= main_x 45)), 76327#(and (<= 48 main_x) (<= main_x 48)), 76326#(and (<= 47 main_x) (<= main_x 47)), 76329#(and (<= main_x 50) (<= 50 main_x)), 76328#(and (<= main_x 49) (<= 49 main_x)), 76331#(and (<= 52 main_x) (<= main_x 52)), 76330#(and (<= main_x 51) (<= 51 main_x)), 76333#(and (<= 54 main_x) (<= main_x 54)), 76332#(and (<= main_x 53) (<= 53 main_x)), 76335#(and (<= main_x 56) (<= 56 main_x)), 76334#(and (<= 55 main_x) (<= main_x 55)), 76337#(and (<= 58 main_x) (<= main_x 58)), 76336#(and (<= main_x 57) (<= 57 main_x)), 76339#(and (<= main_x 60) (<= 60 main_x)), 76338#(and (<= 59 main_x) (<= main_x 59)), 76341#(and (<= main_x 62) (<= 62 main_x)), 76340#(and (<= main_x 61) (<= 61 main_x)), 76343#(and (<= 64 main_x) (<= main_x 64)), 76342#(and (<= 63 main_x) (<= main_x 63)), 76345#(and (<= main_x 66) (<= 66 main_x)), 76344#(and (<= main_x 65) (<= 65 main_x)), 76347#(and (<= main_x 68) (<= 68 main_x)), 76346#(and (<= 67 main_x) (<= main_x 67)), 76349#(and (<= main_x 70) (<= 70 main_x)), 76348#(and (<= 69 main_x) (<= main_x 69)), 76351#(and (<= main_x 72) (<= 72 main_x)), 76350#(and (<= 71 main_x) (<= main_x 71)), 76353#(and (<= 74 main_x) (<= main_x 74)), 76352#(and (<= main_x 73) (<= 73 main_x)), 76355#(and (<= main_x 76) (<= 76 main_x)), 76354#(and (<= main_x 75) (<= 75 main_x)), 76357#(and (<= 78 main_x) (<= main_x 78)), 76356#(and (<= 77 main_x) (<= main_x 77)), 76359#(and (<= main_x 80) (<= 80 main_x)), 76358#(and (<= 79 main_x) (<= main_x 79)), 76361#(and (<= 82 main_x) (<= main_x 82)), 76360#(and (<= 81 main_x) (<= main_x 81)), 76363#(and (<= main_x 84) (<= 84 main_x)), 76362#(and (<= 83 main_x) (<= main_x 83)), 76365#(and (<= 86 main_x) (<= main_x 86)), 76364#(and (<= 85 main_x) (<= main_x 85)), 76367#(and (<= 88 main_x) (<= main_x 88)), 76366#(and (<= 87 main_x) (<= main_x 87)), 76369#(and (<= 90 main_x) (<= main_x 90)), 76368#(and (<= 89 main_x) (<= main_x 89)), 76371#(and (<= main_x 92) (<= 92 main_x)), 76370#(and (<= main_x 91) (<= 91 main_x)), 76373#(and (<= 94 main_x) (<= main_x 94)), 76372#(and (<= 93 main_x) (<= main_x 93)), 76375#(and (<= 96 main_x) (<= main_x 96)), 76374#(and (<= 95 main_x) (<= main_x 95)), 76377#(and (<= main_x 98) (<= 98 main_x)), 76376#(and (<= main_x 97) (<= 97 main_x)), 76379#(and (<= main_x 100) (<= 100 main_x)), 76378#(and (<= 99 main_x) (<= main_x 99)), 76381#(and (<= main_x 102) (<= 102 main_x)), 76380#(and (<= 101 main_x) (<= main_x 101)), 76383#(and (<= main_x 104) (<= 104 main_x)), 76382#(and (<= main_x 103) (<= 103 main_x)), 76385#(and (<= 106 main_x) (<= main_x 106)), 76384#(and (<= main_x 105) (<= 105 main_x)), 76387#(and (<= 108 main_x) (<= main_x 108)), 76386#(and (<= main_x 107) (<= 107 main_x)), 76389#(and (<= main_x 110) (<= 110 main_x)), 76388#(and (<= 109 main_x) (<= main_x 109)), 76391#(and (<= main_x 112) (<= 112 main_x)), 76390#(and (<= main_x 111) (<= 111 main_x)), 76393#(and (<= 114 main_x) (<= main_x 114)), 76392#(and (<= main_x 113) (<= 113 main_x)), 76395#(and (<= 116 main_x) (<= main_x 116)), 76394#(and (<= 115 main_x) (<= main_x 115)), 76397#(and (<= 118 main_x) (<= main_x 118)), 76396#(and (<= 117 main_x) (<= main_x 117)), 76399#(and (<= main_x 120) (<= 120 main_x)), 76398#(and (<= main_x 119) (<= 119 main_x)), 76401#(and (<= 122 main_x) (<= main_x 122)), 76400#(and (<= 121 main_x) (<= main_x 121)), 76403#(and (<= main_x 124) (<= 124 main_x)), 76402#(and (<= main_x 123) (<= 123 main_x)), 76405#(and (<= 126 main_x) (<= main_x 126)), 76404#(and (<= main_x 125) (<= 125 main_x)), 76407#(and (<= main_x 128) (<= 128 main_x)), 76406#(and (<= main_x 127) (<= 127 main_x)), 76409#(and (<= main_x 130) (<= 130 main_x)), 76408#(and (<= 129 main_x) (<= main_x 129)), 76411#(and (<= 132 main_x) (<= main_x 132)), 76410#(and (<= main_x 131) (<= 131 main_x)), 76413#(and (<= main_x 134) (<= 134 main_x)), 76412#(and (<= main_x 133) (<= 133 main_x)), 76415#(and (<= main_x 136) (<= 136 main_x)), 76414#(and (<= main_x 135) (<= 135 main_x)), 76417#(and (<= main_x 138) (<= 138 main_x)), 76416#(and (<= 137 main_x) (<= main_x 137)), 76419#(and (<= main_x 140) (<= 140 main_x)), 76418#(and (<= main_x 139) (<= 139 main_x)), 76421#(and (<= 142 main_x) (<= main_x 142)), 76420#(and (<= main_x 141) (<= 141 main_x)), 76423#(and (<= main_x 144) (<= 144 main_x)), 76422#(and (<= 143 main_x) (<= main_x 143)), 76425#(and (<= main_x 146) (<= 146 main_x)), 76424#(and (<= 145 main_x) (<= main_x 145)), 76427#(and (<= 148 main_x) (<= main_x 148)), 76426#(and (<= main_x 147) (<= 147 main_x)), 76429#(and (<= 150 main_x) (<= main_x 150)), 76428#(and (<= 149 main_x) (<= main_x 149)), 76431#(and (<= 152 main_x) (<= main_x 152)), 76430#(and (<= 151 main_x) (<= main_x 151)), 76433#(and (<= main_x 154) (<= 154 main_x)), 76432#(and (<= main_x 153) (<= 153 main_x)), 76435#(and (<= main_x 156) (<= 156 main_x)), 76434#(and (<= 155 main_x) (<= main_x 155)), 76437#(and (<= main_x 158) (<= 158 main_x)), 76436#(and (<= main_x 157) (<= 157 main_x)), 76439#(and (<= 160 main_x) (<= main_x 160)), 76438#(and (<= 159 main_x) (<= main_x 159)), 76441#(and (<= main_x 162) (<= 162 main_x)), 76440#(and (<= 161 main_x) (<= main_x 161)), 76443#(and (<= 164 main_x) (<= main_x 164)), 76442#(and (<= 163 main_x) (<= main_x 163)), 76445#(and (<= main_x 166) (<= 166 main_x)), 76444#(and (<= 165 main_x) (<= main_x 165)), 76447#(and (<= main_x 168) (<= 168 main_x)), 76446#(and (<= 167 main_x) (<= main_x 167)), 76449#(and (<= 170 main_x) (<= main_x 170)), 76448#(and (<= main_x 169) (<= 169 main_x)), 76450#(or (<= (+ main_x 85) 0) (<= 171 main_x)), 76277#true, 76279#(and (<= main_x 0) (<= 0 main_x)), 76278#false, 76281#(and (<= 2 main_x) (<= main_x 2)), 76280#(and (<= 1 main_x) (<= main_x 1)), 76283#(and (<= main_x 4) (<= 4 main_x)), 76282#(and (<= 3 main_x) (<= main_x 3)), 76285#(and (<= 6 main_x) (<= main_x 6)), 76284#(and (<= 5 main_x) (<= main_x 5)), 76287#(and (<= main_x 8) (<= 8 main_x)), 76286#(and (<= main_x 7) (<= 7 main_x))] [2018-07-23 13:54:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 14706 backedges. 0 proven. 14706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:44,526 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:54:44,527 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:54:44,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=29757, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:54:44,528 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 174 states. [2018-07-23 13:54:46,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:46,636 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2018-07-23 13:54:46,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:54:46,636 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 173 [2018-07-23 13:54:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:46,637 INFO L225 Difference]: With dead ends: 176 [2018-07-23 13:54:46,637 INFO L226 Difference]: Without dead ends: 175 [2018-07-23 13:54:46,639 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=345, Invalid=29757, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:54:46,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-07-23 13:54:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-07-23 13:54:46,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-07-23 13:54:46,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2018-07-23 13:54:46,648 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 173 [2018-07-23 13:54:46,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:46,648 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2018-07-23 13:54:46,648 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:54:46,648 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2018-07-23 13:54:46,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-07-23 13:54:46,649 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:46,649 INFO L357 BasicCegarLoop]: trace histogram [172, 1, 1] [2018-07-23 13:54:46,649 INFO L414 AbstractCegarLoop]: === Iteration 173 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash 379492755, now seen corresponding path program 172 times [2018-07-23 13:54:46,649 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,257 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:48,257 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:54:48,257 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:48,257 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 13:54:48,258 INFO L185 omatonBuilderFactory]: Interpolants [77313#(and (<= main_x 158) (<= 158 main_x)), 77312#(and (<= main_x 157) (<= 157 main_x)), 77315#(and (<= 160 main_x) (<= main_x 160)), 77314#(and (<= 159 main_x) (<= main_x 159)), 77317#(and (<= main_x 162) (<= 162 main_x)), 77316#(and (<= 161 main_x) (<= main_x 161)), 77319#(and (<= 164 main_x) (<= main_x 164)), 77318#(and (<= 163 main_x) (<= main_x 163)), 77321#(and (<= main_x 166) (<= 166 main_x)), 77320#(and (<= 165 main_x) (<= main_x 165)), 77323#(and (<= main_x 168) (<= 168 main_x)), 77322#(and (<= 167 main_x) (<= main_x 167)), 77325#(and (<= 170 main_x) (<= main_x 170)), 77324#(and (<= main_x 169) (<= 169 main_x)), 77327#(or (<= (+ main_x 84) 0) (<= 172 main_x)), 77326#(and (<= 171 main_x) (<= main_x 171)), 77153#true, 77155#(and (<= main_x 0) (<= 0 main_x)), 77154#false, 77157#(and (<= 2 main_x) (<= main_x 2)), 77156#(and (<= 1 main_x) (<= main_x 1)), 77159#(and (<= main_x 4) (<= 4 main_x)), 77158#(and (<= 3 main_x) (<= main_x 3)), 77161#(and (<= 6 main_x) (<= main_x 6)), 77160#(and (<= 5 main_x) (<= main_x 5)), 77163#(and (<= main_x 8) (<= 8 main_x)), 77162#(and (<= main_x 7) (<= 7 main_x)), 77165#(and (<= main_x 10) (<= 10 main_x)), 77164#(and (<= 9 main_x) (<= main_x 9)), 77167#(and (<= 12 main_x) (<= main_x 12)), 77166#(and (<= 11 main_x) (<= main_x 11)), 77169#(and (<= 14 main_x) (<= main_x 14)), 77168#(and (<= 13 main_x) (<= main_x 13)), 77171#(and (<= main_x 16) (<= 16 main_x)), 77170#(and (<= 15 main_x) (<= main_x 15)), 77173#(and (<= main_x 18) (<= 18 main_x)), 77172#(and (<= 17 main_x) (<= main_x 17)), 77175#(and (<= 20 main_x) (<= main_x 20)), 77174#(and (<= main_x 19) (<= 19 main_x)), 77177#(and (<= main_x 22) (<= 22 main_x)), 77176#(and (<= 21 main_x) (<= main_x 21)), 77179#(and (<= main_x 24) (<= 24 main_x)), 77178#(and (<= 23 main_x) (<= main_x 23)), 77181#(and (<= main_x 26) (<= 26 main_x)), 77180#(and (<= main_x 25) (<= 25 main_x)), 77183#(and (<= main_x 28) (<= 28 main_x)), 77182#(and (<= main_x 27) (<= 27 main_x)), 77185#(and (<= 30 main_x) (<= main_x 30)), 77184#(and (<= main_x 29) (<= 29 main_x)), 77187#(and (<= 32 main_x) (<= main_x 32)), 77186#(and (<= 31 main_x) (<= main_x 31)), 77189#(and (<= 34 main_x) (<= main_x 34)), 77188#(and (<= main_x 33) (<= 33 main_x)), 77191#(and (<= main_x 36) (<= 36 main_x)), 77190#(and (<= main_x 35) (<= 35 main_x)), 77193#(and (<= 38 main_x) (<= main_x 38)), 77192#(and (<= 37 main_x) (<= main_x 37)), 77195#(and (<= main_x 40) (<= 40 main_x)), 77194#(and (<= 39 main_x) (<= main_x 39)), 77197#(and (<= 42 main_x) (<= main_x 42)), 77196#(and (<= 41 main_x) (<= main_x 41)), 77199#(and (<= main_x 44) (<= 44 main_x)), 77198#(and (<= 43 main_x) (<= main_x 43)), 77201#(and (<= 46 main_x) (<= main_x 46)), 77200#(and (<= 45 main_x) (<= main_x 45)), 77203#(and (<= 48 main_x) (<= main_x 48)), 77202#(and (<= 47 main_x) (<= main_x 47)), 77205#(and (<= main_x 50) (<= 50 main_x)), 77204#(and (<= main_x 49) (<= 49 main_x)), 77207#(and (<= 52 main_x) (<= main_x 52)), 77206#(and (<= main_x 51) (<= 51 main_x)), 77209#(and (<= 54 main_x) (<= main_x 54)), 77208#(and (<= main_x 53) (<= 53 main_x)), 77211#(and (<= main_x 56) (<= 56 main_x)), 77210#(and (<= 55 main_x) (<= main_x 55)), 77213#(and (<= 58 main_x) (<= main_x 58)), 77212#(and (<= main_x 57) (<= 57 main_x)), 77215#(and (<= main_x 60) (<= 60 main_x)), 77214#(and (<= 59 main_x) (<= main_x 59)), 77217#(and (<= main_x 62) (<= 62 main_x)), 77216#(and (<= main_x 61) (<= 61 main_x)), 77219#(and (<= 64 main_x) (<= main_x 64)), 77218#(and (<= 63 main_x) (<= main_x 63)), 77221#(and (<= main_x 66) (<= 66 main_x)), 77220#(and (<= main_x 65) (<= 65 main_x)), 77223#(and (<= main_x 68) (<= 68 main_x)), 77222#(and (<= 67 main_x) (<= main_x 67)), 77225#(and (<= main_x 70) (<= 70 main_x)), 77224#(and (<= 69 main_x) (<= main_x 69)), 77227#(and (<= main_x 72) (<= 72 main_x)), 77226#(and (<= 71 main_x) (<= main_x 71)), 77229#(and (<= 74 main_x) (<= main_x 74)), 77228#(and (<= main_x 73) (<= 73 main_x)), 77231#(and (<= main_x 76) (<= 76 main_x)), 77230#(and (<= main_x 75) (<= 75 main_x)), 77233#(and (<= 78 main_x) (<= main_x 78)), 77232#(and (<= 77 main_x) (<= main_x 77)), 77235#(and (<= main_x 80) (<= 80 main_x)), 77234#(and (<= 79 main_x) (<= main_x 79)), 77237#(and (<= 82 main_x) (<= main_x 82)), 77236#(and (<= 81 main_x) (<= main_x 81)), 77239#(and (<= main_x 84) (<= 84 main_x)), 77238#(and (<= 83 main_x) (<= main_x 83)), 77241#(and (<= 86 main_x) (<= main_x 86)), 77240#(and (<= 85 main_x) (<= main_x 85)), 77243#(and (<= 88 main_x) (<= main_x 88)), 77242#(and (<= 87 main_x) (<= main_x 87)), 77245#(and (<= 90 main_x) (<= main_x 90)), 77244#(and (<= 89 main_x) (<= main_x 89)), 77247#(and (<= main_x 92) (<= 92 main_x)), 77246#(and (<= main_x 91) (<= 91 main_x)), 77249#(and (<= 94 main_x) (<= main_x 94)), 77248#(and (<= 93 main_x) (<= main_x 93)), 77251#(and (<= 96 main_x) (<= main_x 96)), 77250#(and (<= 95 main_x) (<= main_x 95)), 77253#(and (<= main_x 98) (<= 98 main_x)), 77252#(and (<= main_x 97) (<= 97 main_x)), 77255#(and (<= main_x 100) (<= 100 main_x)), 77254#(and (<= 99 main_x) (<= main_x 99)), 77257#(and (<= main_x 102) (<= 102 main_x)), 77256#(and (<= 101 main_x) (<= main_x 101)), 77259#(and (<= main_x 104) (<= 104 main_x)), 77258#(and (<= main_x 103) (<= 103 main_x)), 77261#(and (<= 106 main_x) (<= main_x 106)), 77260#(and (<= main_x 105) (<= 105 main_x)), 77263#(and (<= 108 main_x) (<= main_x 108)), 77262#(and (<= main_x 107) (<= 107 main_x)), 77265#(and (<= main_x 110) (<= 110 main_x)), 77264#(and (<= 109 main_x) (<= main_x 109)), 77267#(and (<= main_x 112) (<= 112 main_x)), 77266#(and (<= main_x 111) (<= 111 main_x)), 77269#(and (<= 114 main_x) (<= main_x 114)), 77268#(and (<= main_x 113) (<= 113 main_x)), 77271#(and (<= 116 main_x) (<= main_x 116)), 77270#(and (<= 115 main_x) (<= main_x 115)), 77273#(and (<= 118 main_x) (<= main_x 118)), 77272#(and (<= 117 main_x) (<= main_x 117)), 77275#(and (<= main_x 120) (<= 120 main_x)), 77274#(and (<= main_x 119) (<= 119 main_x)), 77277#(and (<= 122 main_x) (<= main_x 122)), 77276#(and (<= 121 main_x) (<= main_x 121)), 77279#(and (<= main_x 124) (<= 124 main_x)), 77278#(and (<= main_x 123) (<= 123 main_x)), 77281#(and (<= 126 main_x) (<= main_x 126)), 77280#(and (<= main_x 125) (<= 125 main_x)), 77283#(and (<= main_x 128) (<= 128 main_x)), 77282#(and (<= main_x 127) (<= 127 main_x)), 77285#(and (<= main_x 130) (<= 130 main_x)), 77284#(and (<= 129 main_x) (<= main_x 129)), 77287#(and (<= 132 main_x) (<= main_x 132)), 77286#(and (<= main_x 131) (<= 131 main_x)), 77289#(and (<= main_x 134) (<= 134 main_x)), 77288#(and (<= main_x 133) (<= 133 main_x)), 77291#(and (<= main_x 136) (<= 136 main_x)), 77290#(and (<= main_x 135) (<= 135 main_x)), 77293#(and (<= main_x 138) (<= 138 main_x)), 77292#(and (<= 137 main_x) (<= main_x 137)), 77295#(and (<= main_x 140) (<= 140 main_x)), 77294#(and (<= main_x 139) (<= 139 main_x)), 77297#(and (<= 142 main_x) (<= main_x 142)), 77296#(and (<= main_x 141) (<= 141 main_x)), 77299#(and (<= main_x 144) (<= 144 main_x)), 77298#(and (<= 143 main_x) (<= main_x 143)), 77301#(and (<= main_x 146) (<= 146 main_x)), 77300#(and (<= 145 main_x) (<= main_x 145)), 77303#(and (<= 148 main_x) (<= main_x 148)), 77302#(and (<= main_x 147) (<= 147 main_x)), 77305#(and (<= 150 main_x) (<= main_x 150)), 77304#(and (<= 149 main_x) (<= main_x 149)), 77307#(and (<= 152 main_x) (<= main_x 152)), 77306#(and (<= 151 main_x) (<= main_x 151)), 77309#(and (<= main_x 154) (<= 154 main_x)), 77308#(and (<= main_x 153) (<= 153 main_x)), 77311#(and (<= main_x 156) (<= 156 main_x)), 77310#(and (<= 155 main_x) (<= main_x 155))] [2018-07-23 13:54:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 14878 backedges. 0 proven. 14878 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:48,259 INFO L450 AbstractCegarLoop]: Interpolant automaton has 175 states [2018-07-23 13:54:48,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2018-07-23 13:54:48,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=30103, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:54:48,259 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand 175 states. [2018-07-23 13:54:50,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:50,347 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2018-07-23 13:54:50,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2018-07-23 13:54:50,348 INFO L78 Accepts]: Start accepts. Automaton has 175 states. Word has length 174 [2018-07-23 13:54:50,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:50,348 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:54:50,348 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 13:54:50,349 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=347, Invalid=30103, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:54:50,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 13:54:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-07-23 13:54:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-07-23 13:54:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-07-23 13:54:50,358 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 174 [2018-07-23 13:54:50,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:50,359 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-07-23 13:54:50,359 INFO L472 AbstractCegarLoop]: Interpolant automaton has 175 states. [2018-07-23 13:54:50,359 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-07-23 13:54:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 13:54:50,359 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:50,360 INFO L357 BasicCegarLoop]: trace histogram [173, 1, 1] [2018-07-23 13:54:50,360 INFO L414 AbstractCegarLoop]: === Iteration 174 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:50,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1120626248, now seen corresponding path program 173 times [2018-07-23 13:54:50,360 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:51,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,947 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:51,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2018-07-23 13:54:51,947 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:51,947 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 13:54:51,948 INFO L185 omatonBuilderFactory]: Interpolants [78081#(and (<= 45 main_x) (<= main_x 45)), 78080#(and (<= main_x 44) (<= 44 main_x)), 78083#(and (<= 47 main_x) (<= main_x 47)), 78082#(and (<= 46 main_x) (<= main_x 46)), 78085#(and (<= main_x 49) (<= 49 main_x)), 78084#(and (<= 48 main_x) (<= main_x 48)), 78087#(and (<= main_x 51) (<= 51 main_x)), 78086#(and (<= main_x 50) (<= 50 main_x)), 78089#(and (<= main_x 53) (<= 53 main_x)), 78088#(and (<= 52 main_x) (<= main_x 52)), 78091#(and (<= 55 main_x) (<= main_x 55)), 78090#(and (<= 54 main_x) (<= main_x 54)), 78093#(and (<= main_x 57) (<= 57 main_x)), 78092#(and (<= main_x 56) (<= 56 main_x)), 78095#(and (<= 59 main_x) (<= main_x 59)), 78094#(and (<= 58 main_x) (<= main_x 58)), 78097#(and (<= main_x 61) (<= 61 main_x)), 78096#(and (<= main_x 60) (<= 60 main_x)), 78099#(and (<= 63 main_x) (<= main_x 63)), 78098#(and (<= main_x 62) (<= 62 main_x)), 78101#(and (<= main_x 65) (<= 65 main_x)), 78100#(and (<= 64 main_x) (<= main_x 64)), 78103#(and (<= 67 main_x) (<= main_x 67)), 78102#(and (<= main_x 66) (<= 66 main_x)), 78105#(and (<= 69 main_x) (<= main_x 69)), 78104#(and (<= main_x 68) (<= 68 main_x)), 78107#(and (<= 71 main_x) (<= main_x 71)), 78106#(and (<= main_x 70) (<= 70 main_x)), 78109#(and (<= main_x 73) (<= 73 main_x)), 78108#(and (<= main_x 72) (<= 72 main_x)), 78111#(and (<= main_x 75) (<= 75 main_x)), 78110#(and (<= 74 main_x) (<= main_x 74)), 78113#(and (<= 77 main_x) (<= main_x 77)), 78112#(and (<= main_x 76) (<= 76 main_x)), 78115#(and (<= 79 main_x) (<= main_x 79)), 78114#(and (<= 78 main_x) (<= main_x 78)), 78117#(and (<= 81 main_x) (<= main_x 81)), 78116#(and (<= main_x 80) (<= 80 main_x)), 78119#(and (<= 83 main_x) (<= main_x 83)), 78118#(and (<= 82 main_x) (<= main_x 82)), 78121#(and (<= 85 main_x) (<= main_x 85)), 78120#(and (<= main_x 84) (<= 84 main_x)), 78123#(and (<= 87 main_x) (<= main_x 87)), 78122#(and (<= 86 main_x) (<= main_x 86)), 78125#(and (<= 89 main_x) (<= main_x 89)), 78124#(and (<= 88 main_x) (<= main_x 88)), 78127#(and (<= main_x 91) (<= 91 main_x)), 78126#(and (<= 90 main_x) (<= main_x 90)), 78129#(and (<= 93 main_x) (<= main_x 93)), 78128#(and (<= main_x 92) (<= 92 main_x)), 78131#(and (<= 95 main_x) (<= main_x 95)), 78130#(and (<= 94 main_x) (<= main_x 94)), 78133#(and (<= main_x 97) (<= 97 main_x)), 78132#(and (<= 96 main_x) (<= main_x 96)), 78135#(and (<= 99 main_x) (<= main_x 99)), 78134#(and (<= main_x 98) (<= 98 main_x)), 78137#(and (<= 101 main_x) (<= main_x 101)), 78136#(and (<= main_x 100) (<= 100 main_x)), 78139#(and (<= main_x 103) (<= 103 main_x)), 78138#(and (<= main_x 102) (<= 102 main_x)), 78141#(and (<= main_x 105) (<= 105 main_x)), 78140#(and (<= main_x 104) (<= 104 main_x)), 78143#(and (<= main_x 107) (<= 107 main_x)), 78142#(and (<= 106 main_x) (<= main_x 106)), 78145#(and (<= 109 main_x) (<= main_x 109)), 78144#(and (<= 108 main_x) (<= main_x 108)), 78147#(and (<= main_x 111) (<= 111 main_x)), 78146#(and (<= main_x 110) (<= 110 main_x)), 78149#(and (<= main_x 113) (<= 113 main_x)), 78148#(and (<= main_x 112) (<= 112 main_x)), 78151#(and (<= 115 main_x) (<= main_x 115)), 78150#(and (<= 114 main_x) (<= main_x 114)), 78153#(and (<= 117 main_x) (<= main_x 117)), 78152#(and (<= 116 main_x) (<= main_x 116)), 78155#(and (<= main_x 119) (<= 119 main_x)), 78154#(and (<= 118 main_x) (<= main_x 118)), 78157#(and (<= 121 main_x) (<= main_x 121)), 78156#(and (<= main_x 120) (<= 120 main_x)), 78159#(and (<= main_x 123) (<= 123 main_x)), 78158#(and (<= 122 main_x) (<= main_x 122)), 78161#(and (<= main_x 125) (<= 125 main_x)), 78160#(and (<= main_x 124) (<= 124 main_x)), 78163#(and (<= main_x 127) (<= 127 main_x)), 78162#(and (<= 126 main_x) (<= main_x 126)), 78165#(and (<= 129 main_x) (<= main_x 129)), 78164#(and (<= main_x 128) (<= 128 main_x)), 78167#(and (<= main_x 131) (<= 131 main_x)), 78166#(and (<= main_x 130) (<= 130 main_x)), 78169#(and (<= main_x 133) (<= 133 main_x)), 78168#(and (<= 132 main_x) (<= main_x 132)), 78171#(and (<= main_x 135) (<= 135 main_x)), 78170#(and (<= main_x 134) (<= 134 main_x)), 78173#(and (<= 137 main_x) (<= main_x 137)), 78172#(and (<= main_x 136) (<= 136 main_x)), 78175#(and (<= main_x 139) (<= 139 main_x)), 78174#(and (<= main_x 138) (<= 138 main_x)), 78177#(and (<= main_x 141) (<= 141 main_x)), 78176#(and (<= main_x 140) (<= 140 main_x)), 78179#(and (<= 143 main_x) (<= main_x 143)), 78178#(and (<= 142 main_x) (<= main_x 142)), 78181#(and (<= 145 main_x) (<= main_x 145)), 78180#(and (<= main_x 144) (<= 144 main_x)), 78183#(and (<= main_x 147) (<= 147 main_x)), 78182#(and (<= main_x 146) (<= 146 main_x)), 78185#(and (<= 149 main_x) (<= main_x 149)), 78184#(and (<= 148 main_x) (<= main_x 148)), 78187#(and (<= 151 main_x) (<= main_x 151)), 78186#(and (<= 150 main_x) (<= main_x 150)), 78189#(and (<= main_x 153) (<= 153 main_x)), 78188#(and (<= 152 main_x) (<= main_x 152)), 78191#(and (<= 155 main_x) (<= main_x 155)), 78190#(and (<= main_x 154) (<= 154 main_x)), 78193#(and (<= main_x 157) (<= 157 main_x)), 78192#(and (<= main_x 156) (<= 156 main_x)), 78195#(and (<= 159 main_x) (<= main_x 159)), 78194#(and (<= main_x 158) (<= 158 main_x)), 78197#(and (<= 161 main_x) (<= main_x 161)), 78196#(and (<= 160 main_x) (<= main_x 160)), 78199#(and (<= 163 main_x) (<= main_x 163)), 78198#(and (<= main_x 162) (<= 162 main_x)), 78201#(and (<= 165 main_x) (<= main_x 165)), 78200#(and (<= 164 main_x) (<= main_x 164)), 78203#(and (<= 167 main_x) (<= main_x 167)), 78202#(and (<= main_x 166) (<= 166 main_x)), 78205#(and (<= main_x 169) (<= 169 main_x)), 78204#(and (<= main_x 168) (<= 168 main_x)), 78207#(and (<= 171 main_x) (<= main_x 171)), 78206#(and (<= 170 main_x) (<= main_x 170)), 78209#(or (<= 173 main_x) (<= (+ main_x 83) 0)), 78208#(and (<= 172 main_x) (<= main_x 172)), 78035#false, 78034#true, 78037#(and (<= 1 main_x) (<= main_x 1)), 78036#(and (<= main_x 0) (<= 0 main_x)), 78039#(and (<= 3 main_x) (<= main_x 3)), 78038#(and (<= 2 main_x) (<= main_x 2)), 78041#(and (<= 5 main_x) (<= main_x 5)), 78040#(and (<= main_x 4) (<= 4 main_x)), 78043#(and (<= main_x 7) (<= 7 main_x)), 78042#(and (<= 6 main_x) (<= main_x 6)), 78045#(and (<= 9 main_x) (<= main_x 9)), 78044#(and (<= main_x 8) (<= 8 main_x)), 78047#(and (<= 11 main_x) (<= main_x 11)), 78046#(and (<= main_x 10) (<= 10 main_x)), 78049#(and (<= 13 main_x) (<= main_x 13)), 78048#(and (<= 12 main_x) (<= main_x 12)), 78051#(and (<= 15 main_x) (<= main_x 15)), 78050#(and (<= 14 main_x) (<= main_x 14)), 78053#(and (<= 17 main_x) (<= main_x 17)), 78052#(and (<= main_x 16) (<= 16 main_x)), 78055#(and (<= main_x 19) (<= 19 main_x)), 78054#(and (<= main_x 18) (<= 18 main_x)), 78057#(and (<= 21 main_x) (<= main_x 21)), 78056#(and (<= 20 main_x) (<= main_x 20)), 78059#(and (<= 23 main_x) (<= main_x 23)), 78058#(and (<= main_x 22) (<= 22 main_x)), 78061#(and (<= main_x 25) (<= 25 main_x)), 78060#(and (<= main_x 24) (<= 24 main_x)), 78063#(and (<= main_x 27) (<= 27 main_x)), 78062#(and (<= main_x 26) (<= 26 main_x)), 78065#(and (<= main_x 29) (<= 29 main_x)), 78064#(and (<= main_x 28) (<= 28 main_x)), 78067#(and (<= 31 main_x) (<= main_x 31)), 78066#(and (<= 30 main_x) (<= main_x 30)), 78069#(and (<= main_x 33) (<= 33 main_x)), 78068#(and (<= 32 main_x) (<= main_x 32)), 78071#(and (<= main_x 35) (<= 35 main_x)), 78070#(and (<= 34 main_x) (<= main_x 34)), 78073#(and (<= 37 main_x) (<= main_x 37)), 78072#(and (<= main_x 36) (<= 36 main_x)), 78075#(and (<= 39 main_x) (<= main_x 39)), 78074#(and (<= 38 main_x) (<= main_x 38)), 78077#(and (<= 41 main_x) (<= main_x 41)), 78076#(and (<= main_x 40) (<= 40 main_x)), 78079#(and (<= 43 main_x) (<= main_x 43)), 78078#(and (<= 42 main_x) (<= main_x 42))] [2018-07-23 13:54:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 15051 backedges. 0 proven. 15051 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:51,949 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:54:51,949 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:54:51,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=30451, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:54:51,950 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 176 states. [2018-07-23 13:54:54,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,070 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2018-07-23 13:54:54,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:54:54,070 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 175 [2018-07-23 13:54:54,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,071 INFO L225 Difference]: With dead ends: 178 [2018-07-23 13:54:54,071 INFO L226 Difference]: Without dead ends: 177 [2018-07-23 13:54:54,072 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=349, Invalid=30451, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:54:54,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-07-23 13:54:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-07-23 13:54:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-07-23 13:54:54,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2018-07-23 13:54:54,078 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 175 [2018-07-23 13:54:54,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,078 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2018-07-23 13:54:54,078 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:54:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2018-07-23 13:54:54,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-07-23 13:54:54,079 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,079 INFO L357 BasicCegarLoop]: trace histogram [174, 1, 1] [2018-07-23 13:54:54,079 INFO L414 AbstractCegarLoop]: === Iteration 175 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,079 INFO L82 PathProgramCache]: Analyzing trace with hash -379675085, now seen corresponding path program 174 times [2018-07-23 13:54:54,079 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,676 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:55,676 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:54:55,676 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:55,676 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 13:54:55,677 INFO L185 omatonBuilderFactory]: Interpolants [78921#false, 78920#true, 78923#(and (<= 1 main_x) (<= main_x 1)), 78922#(and (<= main_x 0) (<= 0 main_x)), 78925#(and (<= 3 main_x) (<= main_x 3)), 78924#(and (<= 2 main_x) (<= main_x 2)), 78927#(and (<= 5 main_x) (<= main_x 5)), 78926#(and (<= main_x 4) (<= 4 main_x)), 78929#(and (<= main_x 7) (<= 7 main_x)), 78928#(and (<= 6 main_x) (<= main_x 6)), 78931#(and (<= 9 main_x) (<= main_x 9)), 78930#(and (<= main_x 8) (<= 8 main_x)), 78933#(and (<= 11 main_x) (<= main_x 11)), 78932#(and (<= main_x 10) (<= 10 main_x)), 78935#(and (<= 13 main_x) (<= main_x 13)), 78934#(and (<= 12 main_x) (<= main_x 12)), 78937#(and (<= 15 main_x) (<= main_x 15)), 78936#(and (<= 14 main_x) (<= main_x 14)), 78939#(and (<= 17 main_x) (<= main_x 17)), 78938#(and (<= main_x 16) (<= 16 main_x)), 78941#(and (<= main_x 19) (<= 19 main_x)), 78940#(and (<= main_x 18) (<= 18 main_x)), 78943#(and (<= 21 main_x) (<= main_x 21)), 78942#(and (<= 20 main_x) (<= main_x 20)), 78945#(and (<= 23 main_x) (<= main_x 23)), 78944#(and (<= main_x 22) (<= 22 main_x)), 78947#(and (<= main_x 25) (<= 25 main_x)), 78946#(and (<= main_x 24) (<= 24 main_x)), 78949#(and (<= main_x 27) (<= 27 main_x)), 78948#(and (<= main_x 26) (<= 26 main_x)), 78951#(and (<= main_x 29) (<= 29 main_x)), 78950#(and (<= main_x 28) (<= 28 main_x)), 78953#(and (<= 31 main_x) (<= main_x 31)), 78952#(and (<= 30 main_x) (<= main_x 30)), 78955#(and (<= main_x 33) (<= 33 main_x)), 78954#(and (<= 32 main_x) (<= main_x 32)), 78957#(and (<= main_x 35) (<= 35 main_x)), 78956#(and (<= 34 main_x) (<= main_x 34)), 78959#(and (<= 37 main_x) (<= main_x 37)), 78958#(and (<= main_x 36) (<= 36 main_x)), 78961#(and (<= 39 main_x) (<= main_x 39)), 78960#(and (<= 38 main_x) (<= main_x 38)), 78963#(and (<= 41 main_x) (<= main_x 41)), 78962#(and (<= main_x 40) (<= 40 main_x)), 78965#(and (<= 43 main_x) (<= main_x 43)), 78964#(and (<= 42 main_x) (<= main_x 42)), 78967#(and (<= 45 main_x) (<= main_x 45)), 78966#(and (<= main_x 44) (<= 44 main_x)), 78969#(and (<= 47 main_x) (<= main_x 47)), 78968#(and (<= 46 main_x) (<= main_x 46)), 78971#(and (<= main_x 49) (<= 49 main_x)), 78970#(and (<= 48 main_x) (<= main_x 48)), 78973#(and (<= main_x 51) (<= 51 main_x)), 78972#(and (<= main_x 50) (<= 50 main_x)), 78975#(and (<= main_x 53) (<= 53 main_x)), 78974#(and (<= 52 main_x) (<= main_x 52)), 78977#(and (<= 55 main_x) (<= main_x 55)), 78976#(and (<= 54 main_x) (<= main_x 54)), 78979#(and (<= main_x 57) (<= 57 main_x)), 78978#(and (<= main_x 56) (<= 56 main_x)), 78981#(and (<= 59 main_x) (<= main_x 59)), 78980#(and (<= 58 main_x) (<= main_x 58)), 78983#(and (<= main_x 61) (<= 61 main_x)), 78982#(and (<= main_x 60) (<= 60 main_x)), 78985#(and (<= 63 main_x) (<= main_x 63)), 78984#(and (<= main_x 62) (<= 62 main_x)), 78987#(and (<= main_x 65) (<= 65 main_x)), 78986#(and (<= 64 main_x) (<= main_x 64)), 78989#(and (<= 67 main_x) (<= main_x 67)), 78988#(and (<= main_x 66) (<= 66 main_x)), 78991#(and (<= 69 main_x) (<= main_x 69)), 78990#(and (<= main_x 68) (<= 68 main_x)), 78993#(and (<= 71 main_x) (<= main_x 71)), 78992#(and (<= main_x 70) (<= 70 main_x)), 78995#(and (<= main_x 73) (<= 73 main_x)), 78994#(and (<= main_x 72) (<= 72 main_x)), 78997#(and (<= main_x 75) (<= 75 main_x)), 78996#(and (<= 74 main_x) (<= main_x 74)), 78999#(and (<= 77 main_x) (<= main_x 77)), 78998#(and (<= main_x 76) (<= 76 main_x)), 79001#(and (<= 79 main_x) (<= main_x 79)), 79000#(and (<= 78 main_x) (<= main_x 78)), 79003#(and (<= 81 main_x) (<= main_x 81)), 79002#(and (<= main_x 80) (<= 80 main_x)), 79005#(and (<= 83 main_x) (<= main_x 83)), 79004#(and (<= 82 main_x) (<= main_x 82)), 79007#(and (<= 85 main_x) (<= main_x 85)), 79006#(and (<= main_x 84) (<= 84 main_x)), 79009#(and (<= 87 main_x) (<= main_x 87)), 79008#(and (<= 86 main_x) (<= main_x 86)), 79011#(and (<= 89 main_x) (<= main_x 89)), 79010#(and (<= 88 main_x) (<= main_x 88)), 79013#(and (<= main_x 91) (<= 91 main_x)), 79012#(and (<= 90 main_x) (<= main_x 90)), 79015#(and (<= 93 main_x) (<= main_x 93)), 79014#(and (<= main_x 92) (<= 92 main_x)), 79017#(and (<= 95 main_x) (<= main_x 95)), 79016#(and (<= 94 main_x) (<= main_x 94)), 79019#(and (<= main_x 97) (<= 97 main_x)), 79018#(and (<= 96 main_x) (<= main_x 96)), 79021#(and (<= 99 main_x) (<= main_x 99)), 79020#(and (<= main_x 98) (<= 98 main_x)), 79023#(and (<= 101 main_x) (<= main_x 101)), 79022#(and (<= main_x 100) (<= 100 main_x)), 79025#(and (<= main_x 103) (<= 103 main_x)), 79024#(and (<= main_x 102) (<= 102 main_x)), 79027#(and (<= main_x 105) (<= 105 main_x)), 79026#(and (<= main_x 104) (<= 104 main_x)), 79029#(and (<= main_x 107) (<= 107 main_x)), 79028#(and (<= 106 main_x) (<= main_x 106)), 79031#(and (<= 109 main_x) (<= main_x 109)), 79030#(and (<= 108 main_x) (<= main_x 108)), 79033#(and (<= main_x 111) (<= 111 main_x)), 79032#(and (<= main_x 110) (<= 110 main_x)), 79035#(and (<= main_x 113) (<= 113 main_x)), 79034#(and (<= main_x 112) (<= 112 main_x)), 79037#(and (<= 115 main_x) (<= main_x 115)), 79036#(and (<= 114 main_x) (<= main_x 114)), 79039#(and (<= 117 main_x) (<= main_x 117)), 79038#(and (<= 116 main_x) (<= main_x 116)), 79041#(and (<= main_x 119) (<= 119 main_x)), 79040#(and (<= 118 main_x) (<= main_x 118)), 79043#(and (<= 121 main_x) (<= main_x 121)), 79042#(and (<= main_x 120) (<= 120 main_x)), 79045#(and (<= main_x 123) (<= 123 main_x)), 79044#(and (<= 122 main_x) (<= main_x 122)), 79047#(and (<= main_x 125) (<= 125 main_x)), 79046#(and (<= main_x 124) (<= 124 main_x)), 79049#(and (<= main_x 127) (<= 127 main_x)), 79048#(and (<= 126 main_x) (<= main_x 126)), 79051#(and (<= 129 main_x) (<= main_x 129)), 79050#(and (<= main_x 128) (<= 128 main_x)), 79053#(and (<= main_x 131) (<= 131 main_x)), 79052#(and (<= main_x 130) (<= 130 main_x)), 79055#(and (<= main_x 133) (<= 133 main_x)), 79054#(and (<= 132 main_x) (<= main_x 132)), 79057#(and (<= main_x 135) (<= 135 main_x)), 79056#(and (<= main_x 134) (<= 134 main_x)), 79059#(and (<= 137 main_x) (<= main_x 137)), 79058#(and (<= main_x 136) (<= 136 main_x)), 79061#(and (<= main_x 139) (<= 139 main_x)), 79060#(and (<= main_x 138) (<= 138 main_x)), 79063#(and (<= main_x 141) (<= 141 main_x)), 79062#(and (<= main_x 140) (<= 140 main_x)), 79065#(and (<= 143 main_x) (<= main_x 143)), 79064#(and (<= 142 main_x) (<= main_x 142)), 79067#(and (<= 145 main_x) (<= main_x 145)), 79066#(and (<= main_x 144) (<= 144 main_x)), 79069#(and (<= main_x 147) (<= 147 main_x)), 79068#(and (<= main_x 146) (<= 146 main_x)), 79071#(and (<= 149 main_x) (<= main_x 149)), 79070#(and (<= 148 main_x) (<= main_x 148)), 79073#(and (<= 151 main_x) (<= main_x 151)), 79072#(and (<= 150 main_x) (<= main_x 150)), 79075#(and (<= main_x 153) (<= 153 main_x)), 79074#(and (<= 152 main_x) (<= main_x 152)), 79077#(and (<= 155 main_x) (<= main_x 155)), 79076#(and (<= main_x 154) (<= 154 main_x)), 79079#(and (<= main_x 157) (<= 157 main_x)), 79078#(and (<= main_x 156) (<= 156 main_x)), 79081#(and (<= 159 main_x) (<= main_x 159)), 79080#(and (<= main_x 158) (<= 158 main_x)), 79083#(and (<= 161 main_x) (<= main_x 161)), 79082#(and (<= 160 main_x) (<= main_x 160)), 79085#(and (<= 163 main_x) (<= main_x 163)), 79084#(and (<= main_x 162) (<= 162 main_x)), 79087#(and (<= 165 main_x) (<= main_x 165)), 79086#(and (<= 164 main_x) (<= main_x 164)), 79089#(and (<= 167 main_x) (<= main_x 167)), 79088#(and (<= main_x 166) (<= 166 main_x)), 79091#(and (<= main_x 169) (<= 169 main_x)), 79090#(and (<= main_x 168) (<= 168 main_x)), 79093#(and (<= 171 main_x) (<= main_x 171)), 79092#(and (<= 170 main_x) (<= main_x 170)), 79095#(and (<= main_x 173) (<= 173 main_x)), 79094#(and (<= 172 main_x) (<= main_x 172)), 79096#(or (<= 174 main_x) (<= (+ main_x 82) 0))] [2018-07-23 13:54:55,677 INFO L134 CoverageAnalysis]: Checked inductivity of 15225 backedges. 0 proven. 15225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:55,678 INFO L450 AbstractCegarLoop]: Interpolant automaton has 177 states [2018-07-23 13:54:55,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2018-07-23 13:54:55,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=30801, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:54:55,679 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand 177 states. [2018-07-23 13:54:57,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:57,823 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2018-07-23 13:54:57,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-07-23 13:54:57,823 INFO L78 Accepts]: Start accepts. Automaton has 177 states. Word has length 176 [2018-07-23 13:54:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:57,824 INFO L225 Difference]: With dead ends: 179 [2018-07-23 13:54:57,824 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:54:57,825 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=351, Invalid=30801, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:54:57,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:54:57,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:54:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:54:57,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-07-23 13:54:57,832 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 176 [2018-07-23 13:54:57,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:57,832 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-07-23 13:54:57,832 INFO L472 AbstractCegarLoop]: Interpolant automaton has 177 states. [2018-07-23 13:54:57,832 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-07-23 13:54:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:54:57,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:57,833 INFO L357 BasicCegarLoop]: trace histogram [175, 1, 1] [2018-07-23 13:54:57,833 INFO L414 AbstractCegarLoop]: === Iteration 176 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:57,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1114974488, now seen corresponding path program 175 times [2018-07-23 13:54:57,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,500 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,500 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2018-07-23 13:54:59,500 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,500 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 13:54:59,500 INFO L185 omatonBuilderFactory]: Interpolants [79873#(and (<= main_x 60) (<= 60 main_x)), 79872#(and (<= 59 main_x) (<= main_x 59)), 79875#(and (<= main_x 62) (<= 62 main_x)), 79874#(and (<= main_x 61) (<= 61 main_x)), 79877#(and (<= 64 main_x) (<= main_x 64)), 79876#(and (<= 63 main_x) (<= main_x 63)), 79879#(and (<= main_x 66) (<= 66 main_x)), 79878#(and (<= main_x 65) (<= 65 main_x)), 79881#(and (<= main_x 68) (<= 68 main_x)), 79880#(and (<= 67 main_x) (<= main_x 67)), 79883#(and (<= main_x 70) (<= 70 main_x)), 79882#(and (<= 69 main_x) (<= main_x 69)), 79885#(and (<= main_x 72) (<= 72 main_x)), 79884#(and (<= 71 main_x) (<= main_x 71)), 79887#(and (<= 74 main_x) (<= main_x 74)), 79886#(and (<= main_x 73) (<= 73 main_x)), 79889#(and (<= main_x 76) (<= 76 main_x)), 79888#(and (<= main_x 75) (<= 75 main_x)), 79891#(and (<= 78 main_x) (<= main_x 78)), 79890#(and (<= 77 main_x) (<= main_x 77)), 79893#(and (<= main_x 80) (<= 80 main_x)), 79892#(and (<= 79 main_x) (<= main_x 79)), 79895#(and (<= 82 main_x) (<= main_x 82)), 79894#(and (<= 81 main_x) (<= main_x 81)), 79897#(and (<= main_x 84) (<= 84 main_x)), 79896#(and (<= 83 main_x) (<= main_x 83)), 79899#(and (<= 86 main_x) (<= main_x 86)), 79898#(and (<= 85 main_x) (<= main_x 85)), 79901#(and (<= 88 main_x) (<= main_x 88)), 79900#(and (<= 87 main_x) (<= main_x 87)), 79903#(and (<= 90 main_x) (<= main_x 90)), 79902#(and (<= 89 main_x) (<= main_x 89)), 79905#(and (<= main_x 92) (<= 92 main_x)), 79904#(and (<= main_x 91) (<= 91 main_x)), 79907#(and (<= 94 main_x) (<= main_x 94)), 79906#(and (<= 93 main_x) (<= main_x 93)), 79909#(and (<= 96 main_x) (<= main_x 96)), 79908#(and (<= 95 main_x) (<= main_x 95)), 79911#(and (<= main_x 98) (<= 98 main_x)), 79910#(and (<= main_x 97) (<= 97 main_x)), 79913#(and (<= main_x 100) (<= 100 main_x)), 79912#(and (<= 99 main_x) (<= main_x 99)), 79915#(and (<= main_x 102) (<= 102 main_x)), 79914#(and (<= 101 main_x) (<= main_x 101)), 79917#(and (<= main_x 104) (<= 104 main_x)), 79916#(and (<= main_x 103) (<= 103 main_x)), 79919#(and (<= 106 main_x) (<= main_x 106)), 79918#(and (<= main_x 105) (<= 105 main_x)), 79921#(and (<= 108 main_x) (<= main_x 108)), 79920#(and (<= main_x 107) (<= 107 main_x)), 79923#(and (<= main_x 110) (<= 110 main_x)), 79922#(and (<= 109 main_x) (<= main_x 109)), 79925#(and (<= main_x 112) (<= 112 main_x)), 79924#(and (<= main_x 111) (<= 111 main_x)), 79927#(and (<= 114 main_x) (<= main_x 114)), 79926#(and (<= main_x 113) (<= 113 main_x)), 79929#(and (<= 116 main_x) (<= main_x 116)), 79928#(and (<= 115 main_x) (<= main_x 115)), 79931#(and (<= 118 main_x) (<= main_x 118)), 79930#(and (<= 117 main_x) (<= main_x 117)), 79933#(and (<= main_x 120) (<= 120 main_x)), 79932#(and (<= main_x 119) (<= 119 main_x)), 79935#(and (<= 122 main_x) (<= main_x 122)), 79934#(and (<= 121 main_x) (<= main_x 121)), 79937#(and (<= main_x 124) (<= 124 main_x)), 79936#(and (<= main_x 123) (<= 123 main_x)), 79939#(and (<= 126 main_x) (<= main_x 126)), 79938#(and (<= main_x 125) (<= 125 main_x)), 79941#(and (<= main_x 128) (<= 128 main_x)), 79940#(and (<= main_x 127) (<= 127 main_x)), 79943#(and (<= main_x 130) (<= 130 main_x)), 79942#(and (<= 129 main_x) (<= main_x 129)), 79945#(and (<= 132 main_x) (<= main_x 132)), 79944#(and (<= main_x 131) (<= 131 main_x)), 79947#(and (<= main_x 134) (<= 134 main_x)), 79946#(and (<= main_x 133) (<= 133 main_x)), 79949#(and (<= main_x 136) (<= 136 main_x)), 79948#(and (<= main_x 135) (<= 135 main_x)), 79951#(and (<= main_x 138) (<= 138 main_x)), 79950#(and (<= 137 main_x) (<= main_x 137)), 79953#(and (<= main_x 140) (<= 140 main_x)), 79952#(and (<= main_x 139) (<= 139 main_x)), 79955#(and (<= 142 main_x) (<= main_x 142)), 79954#(and (<= main_x 141) (<= 141 main_x)), 79957#(and (<= main_x 144) (<= 144 main_x)), 79956#(and (<= 143 main_x) (<= main_x 143)), 79959#(and (<= main_x 146) (<= 146 main_x)), 79958#(and (<= 145 main_x) (<= main_x 145)), 79961#(and (<= 148 main_x) (<= main_x 148)), 79960#(and (<= main_x 147) (<= 147 main_x)), 79963#(and (<= 150 main_x) (<= main_x 150)), 79962#(and (<= 149 main_x) (<= main_x 149)), 79965#(and (<= 152 main_x) (<= main_x 152)), 79964#(and (<= 151 main_x) (<= main_x 151)), 79967#(and (<= main_x 154) (<= 154 main_x)), 79966#(and (<= main_x 153) (<= 153 main_x)), 79969#(and (<= main_x 156) (<= 156 main_x)), 79968#(and (<= 155 main_x) (<= main_x 155)), 79971#(and (<= main_x 158) (<= 158 main_x)), 79970#(and (<= main_x 157) (<= 157 main_x)), 79973#(and (<= 160 main_x) (<= main_x 160)), 79972#(and (<= 159 main_x) (<= main_x 159)), 79975#(and (<= main_x 162) (<= 162 main_x)), 79974#(and (<= 161 main_x) (<= main_x 161)), 79977#(and (<= 164 main_x) (<= main_x 164)), 79976#(and (<= 163 main_x) (<= main_x 163)), 79979#(and (<= main_x 166) (<= 166 main_x)), 79978#(and (<= 165 main_x) (<= main_x 165)), 79981#(and (<= main_x 168) (<= 168 main_x)), 79980#(and (<= 167 main_x) (<= main_x 167)), 79983#(and (<= 170 main_x) (<= main_x 170)), 79982#(and (<= main_x 169) (<= 169 main_x)), 79985#(and (<= 172 main_x) (<= main_x 172)), 79984#(and (<= 171 main_x) (<= main_x 171)), 79987#(and (<= 174 main_x) (<= main_x 174)), 79986#(and (<= main_x 173) (<= 173 main_x)), 79988#(or (<= 175 main_x) (<= (+ main_x 81) 0)), 79811#true, 79813#(and (<= main_x 0) (<= 0 main_x)), 79812#false, 79815#(and (<= 2 main_x) (<= main_x 2)), 79814#(and (<= 1 main_x) (<= main_x 1)), 79817#(and (<= main_x 4) (<= 4 main_x)), 79816#(and (<= 3 main_x) (<= main_x 3)), 79819#(and (<= 6 main_x) (<= main_x 6)), 79818#(and (<= 5 main_x) (<= main_x 5)), 79821#(and (<= main_x 8) (<= 8 main_x)), 79820#(and (<= main_x 7) (<= 7 main_x)), 79823#(and (<= main_x 10) (<= 10 main_x)), 79822#(and (<= 9 main_x) (<= main_x 9)), 79825#(and (<= 12 main_x) (<= main_x 12)), 79824#(and (<= 11 main_x) (<= main_x 11)), 79827#(and (<= 14 main_x) (<= main_x 14)), 79826#(and (<= 13 main_x) (<= main_x 13)), 79829#(and (<= main_x 16) (<= 16 main_x)), 79828#(and (<= 15 main_x) (<= main_x 15)), 79831#(and (<= main_x 18) (<= 18 main_x)), 79830#(and (<= 17 main_x) (<= main_x 17)), 79833#(and (<= 20 main_x) (<= main_x 20)), 79832#(and (<= main_x 19) (<= 19 main_x)), 79835#(and (<= main_x 22) (<= 22 main_x)), 79834#(and (<= 21 main_x) (<= main_x 21)), 79837#(and (<= main_x 24) (<= 24 main_x)), 79836#(and (<= 23 main_x) (<= main_x 23)), 79839#(and (<= main_x 26) (<= 26 main_x)), 79838#(and (<= main_x 25) (<= 25 main_x)), 79841#(and (<= main_x 28) (<= 28 main_x)), 79840#(and (<= main_x 27) (<= 27 main_x)), 79843#(and (<= 30 main_x) (<= main_x 30)), 79842#(and (<= main_x 29) (<= 29 main_x)), 79845#(and (<= 32 main_x) (<= main_x 32)), 79844#(and (<= 31 main_x) (<= main_x 31)), 79847#(and (<= 34 main_x) (<= main_x 34)), 79846#(and (<= main_x 33) (<= 33 main_x)), 79849#(and (<= main_x 36) (<= 36 main_x)), 79848#(and (<= main_x 35) (<= 35 main_x)), 79851#(and (<= 38 main_x) (<= main_x 38)), 79850#(and (<= 37 main_x) (<= main_x 37)), 79853#(and (<= main_x 40) (<= 40 main_x)), 79852#(and (<= 39 main_x) (<= main_x 39)), 79855#(and (<= 42 main_x) (<= main_x 42)), 79854#(and (<= 41 main_x) (<= main_x 41)), 79857#(and (<= main_x 44) (<= 44 main_x)), 79856#(and (<= 43 main_x) (<= main_x 43)), 79859#(and (<= 46 main_x) (<= main_x 46)), 79858#(and (<= 45 main_x) (<= main_x 45)), 79861#(and (<= 48 main_x) (<= main_x 48)), 79860#(and (<= 47 main_x) (<= main_x 47)), 79863#(and (<= main_x 50) (<= 50 main_x)), 79862#(and (<= main_x 49) (<= 49 main_x)), 79865#(and (<= 52 main_x) (<= main_x 52)), 79864#(and (<= main_x 51) (<= 51 main_x)), 79867#(and (<= 54 main_x) (<= main_x 54)), 79866#(and (<= main_x 53) (<= 53 main_x)), 79869#(and (<= main_x 56) (<= 56 main_x)), 79868#(and (<= 55 main_x) (<= main_x 55)), 79871#(and (<= 58 main_x) (<= main_x 58)), 79870#(and (<= main_x 57) (<= 57 main_x))] [2018-07-23 13:54:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15400 backedges. 0 proven. 15400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,502 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:54:59,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:54:59,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=31153, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:54:59,503 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 178 states. [2018-07-23 13:55:01,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:01,721 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-07-23 13:55:01,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:55:01,721 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 177 [2018-07-23 13:55:01,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:01,722 INFO L225 Difference]: With dead ends: 180 [2018-07-23 13:55:01,722 INFO L226 Difference]: Without dead ends: 179 [2018-07-23 13:55:01,722 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=353, Invalid=31153, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:55:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-07-23 13:55:01,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2018-07-23 13:55:01,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2018-07-23 13:55:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2018-07-23 13:55:01,729 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 177 [2018-07-23 13:55:01,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:01,729 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2018-07-23 13:55:01,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:55:01,730 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2018-07-23 13:55:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-07-23 13:55:01,730 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:01,730 INFO L357 BasicCegarLoop]: trace histogram [176, 1, 1] [2018-07-23 13:55:01,730 INFO L414 AbstractCegarLoop]: === Iteration 177 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:01,730 INFO L82 PathProgramCache]: Analyzing trace with hash 204470995, now seen corresponding path program 176 times [2018-07-23 13:55:01,730 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,302 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,303 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:55:03,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,303 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 13:55:03,303 INFO L185 omatonBuilderFactory]: Interpolants [80707#true, 80709#(and (<= main_x 0) (<= 0 main_x)), 80708#false, 80711#(and (<= 2 main_x) (<= main_x 2)), 80710#(and (<= 1 main_x) (<= main_x 1)), 80713#(and (<= main_x 4) (<= 4 main_x)), 80712#(and (<= 3 main_x) (<= main_x 3)), 80715#(and (<= 6 main_x) (<= main_x 6)), 80714#(and (<= 5 main_x) (<= main_x 5)), 80717#(and (<= main_x 8) (<= 8 main_x)), 80716#(and (<= main_x 7) (<= 7 main_x)), 80719#(and (<= main_x 10) (<= 10 main_x)), 80718#(and (<= 9 main_x) (<= main_x 9)), 80721#(and (<= 12 main_x) (<= main_x 12)), 80720#(and (<= 11 main_x) (<= main_x 11)), 80723#(and (<= 14 main_x) (<= main_x 14)), 80722#(and (<= 13 main_x) (<= main_x 13)), 80725#(and (<= main_x 16) (<= 16 main_x)), 80724#(and (<= 15 main_x) (<= main_x 15)), 80727#(and (<= main_x 18) (<= 18 main_x)), 80726#(and (<= 17 main_x) (<= main_x 17)), 80729#(and (<= 20 main_x) (<= main_x 20)), 80728#(and (<= main_x 19) (<= 19 main_x)), 80731#(and (<= main_x 22) (<= 22 main_x)), 80730#(and (<= 21 main_x) (<= main_x 21)), 80733#(and (<= main_x 24) (<= 24 main_x)), 80732#(and (<= 23 main_x) (<= main_x 23)), 80735#(and (<= main_x 26) (<= 26 main_x)), 80734#(and (<= main_x 25) (<= 25 main_x)), 80737#(and (<= main_x 28) (<= 28 main_x)), 80736#(and (<= main_x 27) (<= 27 main_x)), 80739#(and (<= 30 main_x) (<= main_x 30)), 80738#(and (<= main_x 29) (<= 29 main_x)), 80741#(and (<= 32 main_x) (<= main_x 32)), 80740#(and (<= 31 main_x) (<= main_x 31)), 80743#(and (<= 34 main_x) (<= main_x 34)), 80742#(and (<= main_x 33) (<= 33 main_x)), 80745#(and (<= main_x 36) (<= 36 main_x)), 80744#(and (<= main_x 35) (<= 35 main_x)), 80747#(and (<= 38 main_x) (<= main_x 38)), 80746#(and (<= 37 main_x) (<= main_x 37)), 80749#(and (<= main_x 40) (<= 40 main_x)), 80748#(and (<= 39 main_x) (<= main_x 39)), 80751#(and (<= 42 main_x) (<= main_x 42)), 80750#(and (<= 41 main_x) (<= main_x 41)), 80753#(and (<= main_x 44) (<= 44 main_x)), 80752#(and (<= 43 main_x) (<= main_x 43)), 80755#(and (<= 46 main_x) (<= main_x 46)), 80754#(and (<= 45 main_x) (<= main_x 45)), 80757#(and (<= 48 main_x) (<= main_x 48)), 80756#(and (<= 47 main_x) (<= main_x 47)), 80759#(and (<= main_x 50) (<= 50 main_x)), 80758#(and (<= main_x 49) (<= 49 main_x)), 80761#(and (<= 52 main_x) (<= main_x 52)), 80760#(and (<= main_x 51) (<= 51 main_x)), 80763#(and (<= 54 main_x) (<= main_x 54)), 80762#(and (<= main_x 53) (<= 53 main_x)), 80765#(and (<= main_x 56) (<= 56 main_x)), 80764#(and (<= 55 main_x) (<= main_x 55)), 80767#(and (<= 58 main_x) (<= main_x 58)), 80766#(and (<= main_x 57) (<= 57 main_x)), 80769#(and (<= main_x 60) (<= 60 main_x)), 80768#(and (<= 59 main_x) (<= main_x 59)), 80771#(and (<= main_x 62) (<= 62 main_x)), 80770#(and (<= main_x 61) (<= 61 main_x)), 80773#(and (<= 64 main_x) (<= main_x 64)), 80772#(and (<= 63 main_x) (<= main_x 63)), 80775#(and (<= main_x 66) (<= 66 main_x)), 80774#(and (<= main_x 65) (<= 65 main_x)), 80777#(and (<= main_x 68) (<= 68 main_x)), 80776#(and (<= 67 main_x) (<= main_x 67)), 80779#(and (<= main_x 70) (<= 70 main_x)), 80778#(and (<= 69 main_x) (<= main_x 69)), 80781#(and (<= main_x 72) (<= 72 main_x)), 80780#(and (<= 71 main_x) (<= main_x 71)), 80783#(and (<= 74 main_x) (<= main_x 74)), 80782#(and (<= main_x 73) (<= 73 main_x)), 80785#(and (<= main_x 76) (<= 76 main_x)), 80784#(and (<= main_x 75) (<= 75 main_x)), 80787#(and (<= 78 main_x) (<= main_x 78)), 80786#(and (<= 77 main_x) (<= main_x 77)), 80789#(and (<= main_x 80) (<= 80 main_x)), 80788#(and (<= 79 main_x) (<= main_x 79)), 80791#(and (<= 82 main_x) (<= main_x 82)), 80790#(and (<= 81 main_x) (<= main_x 81)), 80793#(and (<= main_x 84) (<= 84 main_x)), 80792#(and (<= 83 main_x) (<= main_x 83)), 80795#(and (<= 86 main_x) (<= main_x 86)), 80794#(and (<= 85 main_x) (<= main_x 85)), 80797#(and (<= 88 main_x) (<= main_x 88)), 80796#(and (<= 87 main_x) (<= main_x 87)), 80799#(and (<= 90 main_x) (<= main_x 90)), 80798#(and (<= 89 main_x) (<= main_x 89)), 80801#(and (<= main_x 92) (<= 92 main_x)), 80800#(and (<= main_x 91) (<= 91 main_x)), 80803#(and (<= 94 main_x) (<= main_x 94)), 80802#(and (<= 93 main_x) (<= main_x 93)), 80805#(and (<= 96 main_x) (<= main_x 96)), 80804#(and (<= 95 main_x) (<= main_x 95)), 80807#(and (<= main_x 98) (<= 98 main_x)), 80806#(and (<= main_x 97) (<= 97 main_x)), 80809#(and (<= main_x 100) (<= 100 main_x)), 80808#(and (<= 99 main_x) (<= main_x 99)), 80811#(and (<= main_x 102) (<= 102 main_x)), 80810#(and (<= 101 main_x) (<= main_x 101)), 80813#(and (<= main_x 104) (<= 104 main_x)), 80812#(and (<= main_x 103) (<= 103 main_x)), 80815#(and (<= 106 main_x) (<= main_x 106)), 80814#(and (<= main_x 105) (<= 105 main_x)), 80817#(and (<= 108 main_x) (<= main_x 108)), 80816#(and (<= main_x 107) (<= 107 main_x)), 80819#(and (<= main_x 110) (<= 110 main_x)), 80818#(and (<= 109 main_x) (<= main_x 109)), 80821#(and (<= main_x 112) (<= 112 main_x)), 80820#(and (<= main_x 111) (<= 111 main_x)), 80823#(and (<= 114 main_x) (<= main_x 114)), 80822#(and (<= main_x 113) (<= 113 main_x)), 80825#(and (<= 116 main_x) (<= main_x 116)), 80824#(and (<= 115 main_x) (<= main_x 115)), 80827#(and (<= 118 main_x) (<= main_x 118)), 80826#(and (<= 117 main_x) (<= main_x 117)), 80829#(and (<= main_x 120) (<= 120 main_x)), 80828#(and (<= main_x 119) (<= 119 main_x)), 80831#(and (<= 122 main_x) (<= main_x 122)), 80830#(and (<= 121 main_x) (<= main_x 121)), 80833#(and (<= main_x 124) (<= 124 main_x)), 80832#(and (<= main_x 123) (<= 123 main_x)), 80835#(and (<= 126 main_x) (<= main_x 126)), 80834#(and (<= main_x 125) (<= 125 main_x)), 80837#(and (<= main_x 128) (<= 128 main_x)), 80836#(and (<= main_x 127) (<= 127 main_x)), 80839#(and (<= main_x 130) (<= 130 main_x)), 80838#(and (<= 129 main_x) (<= main_x 129)), 80841#(and (<= 132 main_x) (<= main_x 132)), 80840#(and (<= main_x 131) (<= 131 main_x)), 80843#(and (<= main_x 134) (<= 134 main_x)), 80842#(and (<= main_x 133) (<= 133 main_x)), 80845#(and (<= main_x 136) (<= 136 main_x)), 80844#(and (<= main_x 135) (<= 135 main_x)), 80847#(and (<= main_x 138) (<= 138 main_x)), 80846#(and (<= 137 main_x) (<= main_x 137)), 80849#(and (<= main_x 140) (<= 140 main_x)), 80848#(and (<= main_x 139) (<= 139 main_x)), 80851#(and (<= 142 main_x) (<= main_x 142)), 80850#(and (<= main_x 141) (<= 141 main_x)), 80853#(and (<= main_x 144) (<= 144 main_x)), 80852#(and (<= 143 main_x) (<= main_x 143)), 80855#(and (<= main_x 146) (<= 146 main_x)), 80854#(and (<= 145 main_x) (<= main_x 145)), 80857#(and (<= 148 main_x) (<= main_x 148)), 80856#(and (<= main_x 147) (<= 147 main_x)), 80859#(and (<= 150 main_x) (<= main_x 150)), 80858#(and (<= 149 main_x) (<= main_x 149)), 80861#(and (<= 152 main_x) (<= main_x 152)), 80860#(and (<= 151 main_x) (<= main_x 151)), 80863#(and (<= main_x 154) (<= 154 main_x)), 80862#(and (<= main_x 153) (<= 153 main_x)), 80865#(and (<= main_x 156) (<= 156 main_x)), 80864#(and (<= 155 main_x) (<= main_x 155)), 80867#(and (<= main_x 158) (<= 158 main_x)), 80866#(and (<= main_x 157) (<= 157 main_x)), 80869#(and (<= 160 main_x) (<= main_x 160)), 80868#(and (<= 159 main_x) (<= main_x 159)), 80871#(and (<= main_x 162) (<= 162 main_x)), 80870#(and (<= 161 main_x) (<= main_x 161)), 80873#(and (<= 164 main_x) (<= main_x 164)), 80872#(and (<= 163 main_x) (<= main_x 163)), 80875#(and (<= main_x 166) (<= 166 main_x)), 80874#(and (<= 165 main_x) (<= main_x 165)), 80877#(and (<= main_x 168) (<= 168 main_x)), 80876#(and (<= 167 main_x) (<= main_x 167)), 80879#(and (<= 170 main_x) (<= main_x 170)), 80878#(and (<= main_x 169) (<= 169 main_x)), 80881#(and (<= 172 main_x) (<= main_x 172)), 80880#(and (<= 171 main_x) (<= main_x 171)), 80883#(and (<= 174 main_x) (<= main_x 174)), 80882#(and (<= main_x 173) (<= 173 main_x)), 80885#(or (<= (+ main_x 80) 0) (<= 176 main_x)), 80884#(and (<= 175 main_x) (<= main_x 175))] [2018-07-23 13:55:03,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15576 backedges. 0 proven. 15576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 179 states [2018-07-23 13:55:03,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2018-07-23 13:55:03,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=31507, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:55:03,306 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand 179 states. [2018-07-23 13:55:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:05,550 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2018-07-23 13:55:05,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2018-07-23 13:55:05,550 INFO L78 Accepts]: Start accepts. Automaton has 179 states. Word has length 178 [2018-07-23 13:55:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:05,551 INFO L225 Difference]: With dead ends: 181 [2018-07-23 13:55:05,551 INFO L226 Difference]: Without dead ends: 180 [2018-07-23 13:55:05,552 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=355, Invalid=31507, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:55:05,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-07-23 13:55:05,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-07-23 13:55:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:55:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-07-23 13:55:05,562 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 178 [2018-07-23 13:55:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:05,562 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-07-23 13:55:05,562 INFO L472 AbstractCegarLoop]: Interpolant automaton has 179 states. [2018-07-23 13:55:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-07-23 13:55:05,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:55:05,563 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:05,563 INFO L357 BasicCegarLoop]: trace histogram [177, 1, 1] [2018-07-23 13:55:05,564 INFO L414 AbstractCegarLoop]: === Iteration 178 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:05,564 INFO L82 PathProgramCache]: Analyzing trace with hash 2043633784, now seen corresponding path program 177 times [2018-07-23 13:55:05,564 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,363 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:07,363 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [178] total 178 [2018-07-23 13:55:07,363 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:07,363 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 13:55:07,364 INFO L185 omatonBuilderFactory]: Interpolants [81665#(and (<= 55 main_x) (<= main_x 55)), 81664#(and (<= 54 main_x) (<= main_x 54)), 81667#(and (<= main_x 57) (<= 57 main_x)), 81666#(and (<= main_x 56) (<= 56 main_x)), 81669#(and (<= 59 main_x) (<= main_x 59)), 81668#(and (<= 58 main_x) (<= main_x 58)), 81671#(and (<= main_x 61) (<= 61 main_x)), 81670#(and (<= main_x 60) (<= 60 main_x)), 81673#(and (<= 63 main_x) (<= main_x 63)), 81672#(and (<= main_x 62) (<= 62 main_x)), 81675#(and (<= main_x 65) (<= 65 main_x)), 81674#(and (<= 64 main_x) (<= main_x 64)), 81677#(and (<= 67 main_x) (<= main_x 67)), 81676#(and (<= main_x 66) (<= 66 main_x)), 81679#(and (<= 69 main_x) (<= main_x 69)), 81678#(and (<= main_x 68) (<= 68 main_x)), 81681#(and (<= 71 main_x) (<= main_x 71)), 81680#(and (<= main_x 70) (<= 70 main_x)), 81683#(and (<= main_x 73) (<= 73 main_x)), 81682#(and (<= main_x 72) (<= 72 main_x)), 81685#(and (<= main_x 75) (<= 75 main_x)), 81684#(and (<= 74 main_x) (<= main_x 74)), 81687#(and (<= 77 main_x) (<= main_x 77)), 81686#(and (<= main_x 76) (<= 76 main_x)), 81689#(and (<= 79 main_x) (<= main_x 79)), 81688#(and (<= 78 main_x) (<= main_x 78)), 81691#(and (<= 81 main_x) (<= main_x 81)), 81690#(and (<= main_x 80) (<= 80 main_x)), 81693#(and (<= 83 main_x) (<= main_x 83)), 81692#(and (<= 82 main_x) (<= main_x 82)), 81695#(and (<= 85 main_x) (<= main_x 85)), 81694#(and (<= main_x 84) (<= 84 main_x)), 81697#(and (<= 87 main_x) (<= main_x 87)), 81696#(and (<= 86 main_x) (<= main_x 86)), 81699#(and (<= 89 main_x) (<= main_x 89)), 81698#(and (<= 88 main_x) (<= main_x 88)), 81701#(and (<= main_x 91) (<= 91 main_x)), 81700#(and (<= 90 main_x) (<= main_x 90)), 81703#(and (<= 93 main_x) (<= main_x 93)), 81702#(and (<= main_x 92) (<= 92 main_x)), 81705#(and (<= 95 main_x) (<= main_x 95)), 81704#(and (<= 94 main_x) (<= main_x 94)), 81707#(and (<= main_x 97) (<= 97 main_x)), 81706#(and (<= 96 main_x) (<= main_x 96)), 81709#(and (<= 99 main_x) (<= main_x 99)), 81708#(and (<= main_x 98) (<= 98 main_x)), 81711#(and (<= 101 main_x) (<= main_x 101)), 81710#(and (<= main_x 100) (<= 100 main_x)), 81713#(and (<= main_x 103) (<= 103 main_x)), 81712#(and (<= main_x 102) (<= 102 main_x)), 81715#(and (<= main_x 105) (<= 105 main_x)), 81714#(and (<= main_x 104) (<= 104 main_x)), 81717#(and (<= main_x 107) (<= 107 main_x)), 81716#(and (<= 106 main_x) (<= main_x 106)), 81719#(and (<= 109 main_x) (<= main_x 109)), 81718#(and (<= 108 main_x) (<= main_x 108)), 81721#(and (<= main_x 111) (<= 111 main_x)), 81720#(and (<= main_x 110) (<= 110 main_x)), 81723#(and (<= main_x 113) (<= 113 main_x)), 81722#(and (<= main_x 112) (<= 112 main_x)), 81725#(and (<= 115 main_x) (<= main_x 115)), 81724#(and (<= 114 main_x) (<= main_x 114)), 81727#(and (<= 117 main_x) (<= main_x 117)), 81726#(and (<= 116 main_x) (<= main_x 116)), 81729#(and (<= main_x 119) (<= 119 main_x)), 81728#(and (<= 118 main_x) (<= main_x 118)), 81731#(and (<= 121 main_x) (<= main_x 121)), 81730#(and (<= main_x 120) (<= 120 main_x)), 81733#(and (<= main_x 123) (<= 123 main_x)), 81732#(and (<= 122 main_x) (<= main_x 122)), 81735#(and (<= main_x 125) (<= 125 main_x)), 81734#(and (<= main_x 124) (<= 124 main_x)), 81737#(and (<= main_x 127) (<= 127 main_x)), 81736#(and (<= 126 main_x) (<= main_x 126)), 81739#(and (<= 129 main_x) (<= main_x 129)), 81738#(and (<= main_x 128) (<= 128 main_x)), 81741#(and (<= main_x 131) (<= 131 main_x)), 81740#(and (<= main_x 130) (<= 130 main_x)), 81743#(and (<= main_x 133) (<= 133 main_x)), 81742#(and (<= 132 main_x) (<= main_x 132)), 81745#(and (<= main_x 135) (<= 135 main_x)), 81744#(and (<= main_x 134) (<= 134 main_x)), 81747#(and (<= 137 main_x) (<= main_x 137)), 81746#(and (<= main_x 136) (<= 136 main_x)), 81749#(and (<= main_x 139) (<= 139 main_x)), 81748#(and (<= main_x 138) (<= 138 main_x)), 81751#(and (<= main_x 141) (<= 141 main_x)), 81750#(and (<= main_x 140) (<= 140 main_x)), 81753#(and (<= 143 main_x) (<= main_x 143)), 81752#(and (<= 142 main_x) (<= main_x 142)), 81755#(and (<= 145 main_x) (<= main_x 145)), 81754#(and (<= main_x 144) (<= 144 main_x)), 81757#(and (<= main_x 147) (<= 147 main_x)), 81756#(and (<= main_x 146) (<= 146 main_x)), 81759#(and (<= 149 main_x) (<= main_x 149)), 81758#(and (<= 148 main_x) (<= main_x 148)), 81761#(and (<= 151 main_x) (<= main_x 151)), 81760#(and (<= 150 main_x) (<= main_x 150)), 81763#(and (<= main_x 153) (<= 153 main_x)), 81762#(and (<= 152 main_x) (<= main_x 152)), 81765#(and (<= 155 main_x) (<= main_x 155)), 81764#(and (<= main_x 154) (<= 154 main_x)), 81767#(and (<= main_x 157) (<= 157 main_x)), 81766#(and (<= main_x 156) (<= 156 main_x)), 81769#(and (<= 159 main_x) (<= main_x 159)), 81768#(and (<= main_x 158) (<= 158 main_x)), 81771#(and (<= 161 main_x) (<= main_x 161)), 81770#(and (<= 160 main_x) (<= main_x 160)), 81773#(and (<= 163 main_x) (<= main_x 163)), 81772#(and (<= main_x 162) (<= 162 main_x)), 81775#(and (<= 165 main_x) (<= main_x 165)), 81774#(and (<= 164 main_x) (<= main_x 164)), 81777#(and (<= 167 main_x) (<= main_x 167)), 81776#(and (<= main_x 166) (<= 166 main_x)), 81779#(and (<= main_x 169) (<= 169 main_x)), 81778#(and (<= main_x 168) (<= 168 main_x)), 81781#(and (<= 171 main_x) (<= main_x 171)), 81780#(and (<= 170 main_x) (<= main_x 170)), 81783#(and (<= main_x 173) (<= 173 main_x)), 81782#(and (<= 172 main_x) (<= main_x 172)), 81785#(and (<= 175 main_x) (<= main_x 175)), 81784#(and (<= 174 main_x) (<= main_x 174)), 81787#(or (<= 177 main_x) (<= (+ main_x 79) 0)), 81786#(and (<= main_x 176) (<= 176 main_x)), 81609#false, 81608#true, 81611#(and (<= 1 main_x) (<= main_x 1)), 81610#(and (<= main_x 0) (<= 0 main_x)), 81613#(and (<= 3 main_x) (<= main_x 3)), 81612#(and (<= 2 main_x) (<= main_x 2)), 81615#(and (<= 5 main_x) (<= main_x 5)), 81614#(and (<= main_x 4) (<= 4 main_x)), 81617#(and (<= main_x 7) (<= 7 main_x)), 81616#(and (<= 6 main_x) (<= main_x 6)), 81619#(and (<= 9 main_x) (<= main_x 9)), 81618#(and (<= main_x 8) (<= 8 main_x)), 81621#(and (<= 11 main_x) (<= main_x 11)), 81620#(and (<= main_x 10) (<= 10 main_x)), 81623#(and (<= 13 main_x) (<= main_x 13)), 81622#(and (<= 12 main_x) (<= main_x 12)), 81625#(and (<= 15 main_x) (<= main_x 15)), 81624#(and (<= 14 main_x) (<= main_x 14)), 81627#(and (<= 17 main_x) (<= main_x 17)), 81626#(and (<= main_x 16) (<= 16 main_x)), 81629#(and (<= main_x 19) (<= 19 main_x)), 81628#(and (<= main_x 18) (<= 18 main_x)), 81631#(and (<= 21 main_x) (<= main_x 21)), 81630#(and (<= 20 main_x) (<= main_x 20)), 81633#(and (<= 23 main_x) (<= main_x 23)), 81632#(and (<= main_x 22) (<= 22 main_x)), 81635#(and (<= main_x 25) (<= 25 main_x)), 81634#(and (<= main_x 24) (<= 24 main_x)), 81637#(and (<= main_x 27) (<= 27 main_x)), 81636#(and (<= main_x 26) (<= 26 main_x)), 81639#(and (<= main_x 29) (<= 29 main_x)), 81638#(and (<= main_x 28) (<= 28 main_x)), 81641#(and (<= 31 main_x) (<= main_x 31)), 81640#(and (<= 30 main_x) (<= main_x 30)), 81643#(and (<= main_x 33) (<= 33 main_x)), 81642#(and (<= 32 main_x) (<= main_x 32)), 81645#(and (<= main_x 35) (<= 35 main_x)), 81644#(and (<= 34 main_x) (<= main_x 34)), 81647#(and (<= 37 main_x) (<= main_x 37)), 81646#(and (<= main_x 36) (<= 36 main_x)), 81649#(and (<= 39 main_x) (<= main_x 39)), 81648#(and (<= 38 main_x) (<= main_x 38)), 81651#(and (<= 41 main_x) (<= main_x 41)), 81650#(and (<= main_x 40) (<= 40 main_x)), 81653#(and (<= 43 main_x) (<= main_x 43)), 81652#(and (<= 42 main_x) (<= main_x 42)), 81655#(and (<= 45 main_x) (<= main_x 45)), 81654#(and (<= main_x 44) (<= 44 main_x)), 81657#(and (<= 47 main_x) (<= main_x 47)), 81656#(and (<= 46 main_x) (<= main_x 46)), 81659#(and (<= main_x 49) (<= 49 main_x)), 81658#(and (<= 48 main_x) (<= main_x 48)), 81661#(and (<= main_x 51) (<= 51 main_x)), 81660#(and (<= main_x 50) (<= 50 main_x)), 81663#(and (<= main_x 53) (<= 53 main_x)), 81662#(and (<= 52 main_x) (<= main_x 52))] [2018-07-23 13:55:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 15753 backedges. 0 proven. 15753 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,365 INFO L450 AbstractCegarLoop]: Interpolant automaton has 180 states [2018-07-23 13:55:07,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2018-07-23 13:55:07,366 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=31863, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:55:07,367 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand 180 states. [2018-07-23 13:55:09,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:09,629 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-07-23 13:55:09,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:55:09,630 INFO L78 Accepts]: Start accepts. Automaton has 180 states. Word has length 179 [2018-07-23 13:55:09,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:09,630 INFO L225 Difference]: With dead ends: 182 [2018-07-23 13:55:09,630 INFO L226 Difference]: Without dead ends: 181 [2018-07-23 13:55:09,631 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=357, Invalid=31863, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:55:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-07-23 13:55:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2018-07-23 13:55:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-07-23 13:55:09,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2018-07-23 13:55:09,638 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 179 [2018-07-23 13:55:09,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:09,639 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2018-07-23 13:55:09,639 INFO L472 AbstractCegarLoop]: Interpolant automaton has 180 states. [2018-07-23 13:55:09,639 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2018-07-23 13:55:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-07-23 13:55:09,639 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:09,639 INFO L357 BasicCegarLoop]: trace histogram [178, 1, 1] [2018-07-23 13:55:09,639 INFO L414 AbstractCegarLoop]: === Iteration 179 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:09,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1071861901, now seen corresponding path program 178 times [2018-07-23 13:55:09,640 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:11,403 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,404 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:11,404 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2018-07-23 13:55:11,404 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:11,404 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 13:55:11,404 INFO L185 omatonBuilderFactory]: Interpolants [82689#(and (<= main_x 173) (<= 173 main_x)), 82688#(and (<= 172 main_x) (<= main_x 172)), 82691#(and (<= 175 main_x) (<= main_x 175)), 82690#(and (<= 174 main_x) (<= main_x 174)), 82693#(and (<= 177 main_x) (<= main_x 177)), 82692#(and (<= main_x 176) (<= 176 main_x)), 82694#(or (<= 178 main_x) (<= (+ main_x 78) 0)), 82515#false, 82514#true, 82517#(and (<= 1 main_x) (<= main_x 1)), 82516#(and (<= main_x 0) (<= 0 main_x)), 82519#(and (<= 3 main_x) (<= main_x 3)), 82518#(and (<= 2 main_x) (<= main_x 2)), 82521#(and (<= 5 main_x) (<= main_x 5)), 82520#(and (<= main_x 4) (<= 4 main_x)), 82523#(and (<= main_x 7) (<= 7 main_x)), 82522#(and (<= 6 main_x) (<= main_x 6)), 82525#(and (<= 9 main_x) (<= main_x 9)), 82524#(and (<= main_x 8) (<= 8 main_x)), 82527#(and (<= 11 main_x) (<= main_x 11)), 82526#(and (<= main_x 10) (<= 10 main_x)), 82529#(and (<= 13 main_x) (<= main_x 13)), 82528#(and (<= 12 main_x) (<= main_x 12)), 82531#(and (<= 15 main_x) (<= main_x 15)), 82530#(and (<= 14 main_x) (<= main_x 14)), 82533#(and (<= 17 main_x) (<= main_x 17)), 82532#(and (<= main_x 16) (<= 16 main_x)), 82535#(and (<= main_x 19) (<= 19 main_x)), 82534#(and (<= main_x 18) (<= 18 main_x)), 82537#(and (<= 21 main_x) (<= main_x 21)), 82536#(and (<= 20 main_x) (<= main_x 20)), 82539#(and (<= 23 main_x) (<= main_x 23)), 82538#(and (<= main_x 22) (<= 22 main_x)), 82541#(and (<= main_x 25) (<= 25 main_x)), 82540#(and (<= main_x 24) (<= 24 main_x)), 82543#(and (<= main_x 27) (<= 27 main_x)), 82542#(and (<= main_x 26) (<= 26 main_x)), 82545#(and (<= main_x 29) (<= 29 main_x)), 82544#(and (<= main_x 28) (<= 28 main_x)), 82547#(and (<= 31 main_x) (<= main_x 31)), 82546#(and (<= 30 main_x) (<= main_x 30)), 82549#(and (<= main_x 33) (<= 33 main_x)), 82548#(and (<= 32 main_x) (<= main_x 32)), 82551#(and (<= main_x 35) (<= 35 main_x)), 82550#(and (<= 34 main_x) (<= main_x 34)), 82553#(and (<= 37 main_x) (<= main_x 37)), 82552#(and (<= main_x 36) (<= 36 main_x)), 82555#(and (<= 39 main_x) (<= main_x 39)), 82554#(and (<= 38 main_x) (<= main_x 38)), 82557#(and (<= 41 main_x) (<= main_x 41)), 82556#(and (<= main_x 40) (<= 40 main_x)), 82559#(and (<= 43 main_x) (<= main_x 43)), 82558#(and (<= 42 main_x) (<= main_x 42)), 82561#(and (<= 45 main_x) (<= main_x 45)), 82560#(and (<= main_x 44) (<= 44 main_x)), 82563#(and (<= 47 main_x) (<= main_x 47)), 82562#(and (<= 46 main_x) (<= main_x 46)), 82565#(and (<= main_x 49) (<= 49 main_x)), 82564#(and (<= 48 main_x) (<= main_x 48)), 82567#(and (<= main_x 51) (<= 51 main_x)), 82566#(and (<= main_x 50) (<= 50 main_x)), 82569#(and (<= main_x 53) (<= 53 main_x)), 82568#(and (<= 52 main_x) (<= main_x 52)), 82571#(and (<= 55 main_x) (<= main_x 55)), 82570#(and (<= 54 main_x) (<= main_x 54)), 82573#(and (<= main_x 57) (<= 57 main_x)), 82572#(and (<= main_x 56) (<= 56 main_x)), 82575#(and (<= 59 main_x) (<= main_x 59)), 82574#(and (<= 58 main_x) (<= main_x 58)), 82577#(and (<= main_x 61) (<= 61 main_x)), 82576#(and (<= main_x 60) (<= 60 main_x)), 82579#(and (<= 63 main_x) (<= main_x 63)), 82578#(and (<= main_x 62) (<= 62 main_x)), 82581#(and (<= main_x 65) (<= 65 main_x)), 82580#(and (<= 64 main_x) (<= main_x 64)), 82583#(and (<= 67 main_x) (<= main_x 67)), 82582#(and (<= main_x 66) (<= 66 main_x)), 82585#(and (<= 69 main_x) (<= main_x 69)), 82584#(and (<= main_x 68) (<= 68 main_x)), 82587#(and (<= 71 main_x) (<= main_x 71)), 82586#(and (<= main_x 70) (<= 70 main_x)), 82589#(and (<= main_x 73) (<= 73 main_x)), 82588#(and (<= main_x 72) (<= 72 main_x)), 82591#(and (<= main_x 75) (<= 75 main_x)), 82590#(and (<= 74 main_x) (<= main_x 74)), 82593#(and (<= 77 main_x) (<= main_x 77)), 82592#(and (<= main_x 76) (<= 76 main_x)), 82595#(and (<= 79 main_x) (<= main_x 79)), 82594#(and (<= 78 main_x) (<= main_x 78)), 82597#(and (<= 81 main_x) (<= main_x 81)), 82596#(and (<= main_x 80) (<= 80 main_x)), 82599#(and (<= 83 main_x) (<= main_x 83)), 82598#(and (<= 82 main_x) (<= main_x 82)), 82601#(and (<= 85 main_x) (<= main_x 85)), 82600#(and (<= main_x 84) (<= 84 main_x)), 82603#(and (<= 87 main_x) (<= main_x 87)), 82602#(and (<= 86 main_x) (<= main_x 86)), 82605#(and (<= 89 main_x) (<= main_x 89)), 82604#(and (<= 88 main_x) (<= main_x 88)), 82607#(and (<= main_x 91) (<= 91 main_x)), 82606#(and (<= 90 main_x) (<= main_x 90)), 82609#(and (<= 93 main_x) (<= main_x 93)), 82608#(and (<= main_x 92) (<= 92 main_x)), 82611#(and (<= 95 main_x) (<= main_x 95)), 82610#(and (<= 94 main_x) (<= main_x 94)), 82613#(and (<= main_x 97) (<= 97 main_x)), 82612#(and (<= 96 main_x) (<= main_x 96)), 82615#(and (<= 99 main_x) (<= main_x 99)), 82614#(and (<= main_x 98) (<= 98 main_x)), 82617#(and (<= 101 main_x) (<= main_x 101)), 82616#(and (<= main_x 100) (<= 100 main_x)), 82619#(and (<= main_x 103) (<= 103 main_x)), 82618#(and (<= main_x 102) (<= 102 main_x)), 82621#(and (<= main_x 105) (<= 105 main_x)), 82620#(and (<= main_x 104) (<= 104 main_x)), 82623#(and (<= main_x 107) (<= 107 main_x)), 82622#(and (<= 106 main_x) (<= main_x 106)), 82625#(and (<= 109 main_x) (<= main_x 109)), 82624#(and (<= 108 main_x) (<= main_x 108)), 82627#(and (<= main_x 111) (<= 111 main_x)), 82626#(and (<= main_x 110) (<= 110 main_x)), 82629#(and (<= main_x 113) (<= 113 main_x)), 82628#(and (<= main_x 112) (<= 112 main_x)), 82631#(and (<= 115 main_x) (<= main_x 115)), 82630#(and (<= 114 main_x) (<= main_x 114)), 82633#(and (<= 117 main_x) (<= main_x 117)), 82632#(and (<= 116 main_x) (<= main_x 116)), 82635#(and (<= main_x 119) (<= 119 main_x)), 82634#(and (<= 118 main_x) (<= main_x 118)), 82637#(and (<= 121 main_x) (<= main_x 121)), 82636#(and (<= main_x 120) (<= 120 main_x)), 82639#(and (<= main_x 123) (<= 123 main_x)), 82638#(and (<= 122 main_x) (<= main_x 122)), 82641#(and (<= main_x 125) (<= 125 main_x)), 82640#(and (<= main_x 124) (<= 124 main_x)), 82643#(and (<= main_x 127) (<= 127 main_x)), 82642#(and (<= 126 main_x) (<= main_x 126)), 82645#(and (<= 129 main_x) (<= main_x 129)), 82644#(and (<= main_x 128) (<= 128 main_x)), 82647#(and (<= main_x 131) (<= 131 main_x)), 82646#(and (<= main_x 130) (<= 130 main_x)), 82649#(and (<= main_x 133) (<= 133 main_x)), 82648#(and (<= 132 main_x) (<= main_x 132)), 82651#(and (<= main_x 135) (<= 135 main_x)), 82650#(and (<= main_x 134) (<= 134 main_x)), 82653#(and (<= 137 main_x) (<= main_x 137)), 82652#(and (<= main_x 136) (<= 136 main_x)), 82655#(and (<= main_x 139) (<= 139 main_x)), 82654#(and (<= main_x 138) (<= 138 main_x)), 82657#(and (<= main_x 141) (<= 141 main_x)), 82656#(and (<= main_x 140) (<= 140 main_x)), 82659#(and (<= 143 main_x) (<= main_x 143)), 82658#(and (<= 142 main_x) (<= main_x 142)), 82661#(and (<= 145 main_x) (<= main_x 145)), 82660#(and (<= main_x 144) (<= 144 main_x)), 82663#(and (<= main_x 147) (<= 147 main_x)), 82662#(and (<= main_x 146) (<= 146 main_x)), 82665#(and (<= 149 main_x) (<= main_x 149)), 82664#(and (<= 148 main_x) (<= main_x 148)), 82667#(and (<= 151 main_x) (<= main_x 151)), 82666#(and (<= 150 main_x) (<= main_x 150)), 82669#(and (<= main_x 153) (<= 153 main_x)), 82668#(and (<= 152 main_x) (<= main_x 152)), 82671#(and (<= 155 main_x) (<= main_x 155)), 82670#(and (<= main_x 154) (<= 154 main_x)), 82673#(and (<= main_x 157) (<= 157 main_x)), 82672#(and (<= main_x 156) (<= 156 main_x)), 82675#(and (<= 159 main_x) (<= main_x 159)), 82674#(and (<= main_x 158) (<= 158 main_x)), 82677#(and (<= 161 main_x) (<= main_x 161)), 82676#(and (<= 160 main_x) (<= main_x 160)), 82679#(and (<= 163 main_x) (<= main_x 163)), 82678#(and (<= main_x 162) (<= 162 main_x)), 82681#(and (<= 165 main_x) (<= main_x 165)), 82680#(and (<= 164 main_x) (<= main_x 164)), 82683#(and (<= 167 main_x) (<= main_x 167)), 82682#(and (<= main_x 166) (<= 166 main_x)), 82685#(and (<= main_x 169) (<= 169 main_x)), 82684#(and (<= main_x 168) (<= 168 main_x)), 82687#(and (<= 171 main_x) (<= main_x 171)), 82686#(and (<= 170 main_x) (<= main_x 170))] [2018-07-23 13:55:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15931 backedges. 0 proven. 15931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:11,406 INFO L450 AbstractCegarLoop]: Interpolant automaton has 181 states [2018-07-23 13:55:11,406 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2018-07-23 13:55:11,407 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=32221, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:55:11,407 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 181 states. [2018-07-23 13:55:13,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:13,649 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2018-07-23 13:55:13,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2018-07-23 13:55:13,650 INFO L78 Accepts]: Start accepts. Automaton has 181 states. Word has length 180 [2018-07-23 13:55:13,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:13,650 INFO L225 Difference]: With dead ends: 183 [2018-07-23 13:55:13,650 INFO L226 Difference]: Without dead ends: 182 [2018-07-23 13:55:13,651 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=359, Invalid=32221, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:55:13,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-07-23 13:55:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-07-23 13:55:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-07-23 13:55:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-07-23 13:55:13,658 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 180 [2018-07-23 13:55:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:13,658 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-07-23 13:55:13,658 INFO L472 AbstractCegarLoop]: Interpolant automaton has 181 states. [2018-07-23 13:55:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-07-23 13:55:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-23 13:55:13,659 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:13,659 INFO L357 BasicCegarLoop]: trace histogram [179, 1, 1] [2018-07-23 13:55:13,659 INFO L414 AbstractCegarLoop]: === Iteration 180 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:13,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1132019672, now seen corresponding path program 179 times [2018-07-23 13:55:13,659 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:15,429 INFO L134 CoverageAnalysis]: Checked inductivity of 16110 backedges. 0 proven. 16110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,430 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:15,430 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [180] total 180 [2018-07-23 13:55:15,430 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:15,430 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 13:55:15,431 INFO L185 omatonBuilderFactory]: Interpolants [83457#(and (<= 30 main_x) (<= main_x 30)), 83456#(and (<= main_x 29) (<= 29 main_x)), 83459#(and (<= 32 main_x) (<= main_x 32)), 83458#(and (<= 31 main_x) (<= main_x 31)), 83461#(and (<= 34 main_x) (<= main_x 34)), 83460#(and (<= main_x 33) (<= 33 main_x)), 83463#(and (<= main_x 36) (<= 36 main_x)), 83462#(and (<= main_x 35) (<= 35 main_x)), 83465#(and (<= 38 main_x) (<= main_x 38)), 83464#(and (<= 37 main_x) (<= main_x 37)), 83467#(and (<= main_x 40) (<= 40 main_x)), 83466#(and (<= 39 main_x) (<= main_x 39)), 83469#(and (<= 42 main_x) (<= main_x 42)), 83468#(and (<= 41 main_x) (<= main_x 41)), 83471#(and (<= main_x 44) (<= 44 main_x)), 83470#(and (<= 43 main_x) (<= main_x 43)), 83473#(and (<= 46 main_x) (<= main_x 46)), 83472#(and (<= 45 main_x) (<= main_x 45)), 83475#(and (<= 48 main_x) (<= main_x 48)), 83474#(and (<= 47 main_x) (<= main_x 47)), 83477#(and (<= main_x 50) (<= 50 main_x)), 83476#(and (<= main_x 49) (<= 49 main_x)), 83479#(and (<= 52 main_x) (<= main_x 52)), 83478#(and (<= main_x 51) (<= 51 main_x)), 83481#(and (<= 54 main_x) (<= main_x 54)), 83480#(and (<= main_x 53) (<= 53 main_x)), 83483#(and (<= main_x 56) (<= 56 main_x)), 83482#(and (<= 55 main_x) (<= main_x 55)), 83485#(and (<= 58 main_x) (<= main_x 58)), 83484#(and (<= main_x 57) (<= 57 main_x)), 83487#(and (<= main_x 60) (<= 60 main_x)), 83486#(and (<= 59 main_x) (<= main_x 59)), 83489#(and (<= main_x 62) (<= 62 main_x)), 83488#(and (<= main_x 61) (<= 61 main_x)), 83491#(and (<= 64 main_x) (<= main_x 64)), 83490#(and (<= 63 main_x) (<= main_x 63)), 83493#(and (<= main_x 66) (<= 66 main_x)), 83492#(and (<= main_x 65) (<= 65 main_x)), 83495#(and (<= main_x 68) (<= 68 main_x)), 83494#(and (<= 67 main_x) (<= main_x 67)), 83497#(and (<= main_x 70) (<= 70 main_x)), 83496#(and (<= 69 main_x) (<= main_x 69)), 83499#(and (<= main_x 72) (<= 72 main_x)), 83498#(and (<= 71 main_x) (<= main_x 71)), 83501#(and (<= 74 main_x) (<= main_x 74)), 83500#(and (<= main_x 73) (<= 73 main_x)), 83503#(and (<= main_x 76) (<= 76 main_x)), 83502#(and (<= main_x 75) (<= 75 main_x)), 83505#(and (<= 78 main_x) (<= main_x 78)), 83504#(and (<= 77 main_x) (<= main_x 77)), 83507#(and (<= main_x 80) (<= 80 main_x)), 83506#(and (<= 79 main_x) (<= main_x 79)), 83509#(and (<= 82 main_x) (<= main_x 82)), 83508#(and (<= 81 main_x) (<= main_x 81)), 83511#(and (<= main_x 84) (<= 84 main_x)), 83510#(and (<= 83 main_x) (<= main_x 83)), 83513#(and (<= 86 main_x) (<= main_x 86)), 83512#(and (<= 85 main_x) (<= main_x 85)), 83515#(and (<= 88 main_x) (<= main_x 88)), 83514#(and (<= 87 main_x) (<= main_x 87)), 83517#(and (<= 90 main_x) (<= main_x 90)), 83516#(and (<= 89 main_x) (<= main_x 89)), 83519#(and (<= main_x 92) (<= 92 main_x)), 83518#(and (<= main_x 91) (<= 91 main_x)), 83521#(and (<= 94 main_x) (<= main_x 94)), 83520#(and (<= 93 main_x) (<= main_x 93)), 83523#(and (<= 96 main_x) (<= main_x 96)), 83522#(and (<= 95 main_x) (<= main_x 95)), 83525#(and (<= main_x 98) (<= 98 main_x)), 83524#(and (<= main_x 97) (<= 97 main_x)), 83527#(and (<= main_x 100) (<= 100 main_x)), 83526#(and (<= 99 main_x) (<= main_x 99)), 83529#(and (<= main_x 102) (<= 102 main_x)), 83528#(and (<= 101 main_x) (<= main_x 101)), 83531#(and (<= main_x 104) (<= 104 main_x)), 83530#(and (<= main_x 103) (<= 103 main_x)), 83533#(and (<= 106 main_x) (<= main_x 106)), 83532#(and (<= main_x 105) (<= 105 main_x)), 83535#(and (<= 108 main_x) (<= main_x 108)), 83534#(and (<= main_x 107) (<= 107 main_x)), 83537#(and (<= main_x 110) (<= 110 main_x)), 83536#(and (<= 109 main_x) (<= main_x 109)), 83539#(and (<= main_x 112) (<= 112 main_x)), 83538#(and (<= main_x 111) (<= 111 main_x)), 83541#(and (<= 114 main_x) (<= main_x 114)), 83540#(and (<= main_x 113) (<= 113 main_x)), 83543#(and (<= 116 main_x) (<= main_x 116)), 83542#(and (<= 115 main_x) (<= main_x 115)), 83545#(and (<= 118 main_x) (<= main_x 118)), 83544#(and (<= 117 main_x) (<= main_x 117)), 83547#(and (<= main_x 120) (<= 120 main_x)), 83546#(and (<= main_x 119) (<= 119 main_x)), 83549#(and (<= 122 main_x) (<= main_x 122)), 83548#(and (<= 121 main_x) (<= main_x 121)), 83551#(and (<= main_x 124) (<= 124 main_x)), 83550#(and (<= main_x 123) (<= 123 main_x)), 83553#(and (<= 126 main_x) (<= main_x 126)), 83552#(and (<= main_x 125) (<= 125 main_x)), 83555#(and (<= main_x 128) (<= 128 main_x)), 83554#(and (<= main_x 127) (<= 127 main_x)), 83557#(and (<= main_x 130) (<= 130 main_x)), 83556#(and (<= 129 main_x) (<= main_x 129)), 83559#(and (<= 132 main_x) (<= main_x 132)), 83558#(and (<= main_x 131) (<= 131 main_x)), 83561#(and (<= main_x 134) (<= 134 main_x)), 83560#(and (<= main_x 133) (<= 133 main_x)), 83563#(and (<= main_x 136) (<= 136 main_x)), 83562#(and (<= main_x 135) (<= 135 main_x)), 83565#(and (<= main_x 138) (<= 138 main_x)), 83564#(and (<= 137 main_x) (<= main_x 137)), 83567#(and (<= main_x 140) (<= 140 main_x)), 83566#(and (<= main_x 139) (<= 139 main_x)), 83569#(and (<= 142 main_x) (<= main_x 142)), 83568#(and (<= main_x 141) (<= 141 main_x)), 83571#(and (<= main_x 144) (<= 144 main_x)), 83570#(and (<= 143 main_x) (<= main_x 143)), 83573#(and (<= main_x 146) (<= 146 main_x)), 83572#(and (<= 145 main_x) (<= main_x 145)), 83575#(and (<= 148 main_x) (<= main_x 148)), 83574#(and (<= main_x 147) (<= 147 main_x)), 83577#(and (<= 150 main_x) (<= main_x 150)), 83576#(and (<= 149 main_x) (<= main_x 149)), 83579#(and (<= 152 main_x) (<= main_x 152)), 83578#(and (<= 151 main_x) (<= main_x 151)), 83581#(and (<= main_x 154) (<= 154 main_x)), 83580#(and (<= main_x 153) (<= 153 main_x)), 83583#(and (<= main_x 156) (<= 156 main_x)), 83582#(and (<= 155 main_x) (<= main_x 155)), 83585#(and (<= main_x 158) (<= 158 main_x)), 83584#(and (<= main_x 157) (<= 157 main_x)), 83587#(and (<= 160 main_x) (<= main_x 160)), 83586#(and (<= 159 main_x) (<= main_x 159)), 83589#(and (<= main_x 162) (<= 162 main_x)), 83588#(and (<= 161 main_x) (<= main_x 161)), 83591#(and (<= 164 main_x) (<= main_x 164)), 83590#(and (<= 163 main_x) (<= main_x 163)), 83593#(and (<= main_x 166) (<= 166 main_x)), 83592#(and (<= 165 main_x) (<= main_x 165)), 83595#(and (<= main_x 168) (<= 168 main_x)), 83594#(and (<= 167 main_x) (<= main_x 167)), 83597#(and (<= 170 main_x) (<= main_x 170)), 83596#(and (<= main_x 169) (<= 169 main_x)), 83599#(and (<= 172 main_x) (<= main_x 172)), 83598#(and (<= 171 main_x) (<= main_x 171)), 83601#(and (<= 174 main_x) (<= main_x 174)), 83600#(and (<= main_x 173) (<= 173 main_x)), 83603#(and (<= main_x 176) (<= 176 main_x)), 83602#(and (<= 175 main_x) (<= main_x 175)), 83605#(and (<= main_x 178) (<= 178 main_x)), 83604#(and (<= 177 main_x) (<= main_x 177)), 83606#(or (<= (+ main_x 77) 0) (<= 179 main_x)), 83425#true, 83427#(and (<= main_x 0) (<= 0 main_x)), 83426#false, 83429#(and (<= 2 main_x) (<= main_x 2)), 83428#(and (<= 1 main_x) (<= main_x 1)), 83431#(and (<= main_x 4) (<= 4 main_x)), 83430#(and (<= 3 main_x) (<= main_x 3)), 83433#(and (<= 6 main_x) (<= main_x 6)), 83432#(and (<= 5 main_x) (<= main_x 5)), 83435#(and (<= main_x 8) (<= 8 main_x)), 83434#(and (<= main_x 7) (<= 7 main_x)), 83437#(and (<= main_x 10) (<= 10 main_x)), 83436#(and (<= 9 main_x) (<= main_x 9)), 83439#(and (<= 12 main_x) (<= main_x 12)), 83438#(and (<= 11 main_x) (<= main_x 11)), 83441#(and (<= 14 main_x) (<= main_x 14)), 83440#(and (<= 13 main_x) (<= main_x 13)), 83443#(and (<= main_x 16) (<= 16 main_x)), 83442#(and (<= 15 main_x) (<= main_x 15)), 83445#(and (<= main_x 18) (<= 18 main_x)), 83444#(and (<= 17 main_x) (<= main_x 17)), 83447#(and (<= 20 main_x) (<= main_x 20)), 83446#(and (<= main_x 19) (<= 19 main_x)), 83449#(and (<= main_x 22) (<= 22 main_x)), 83448#(and (<= 21 main_x) (<= main_x 21)), 83451#(and (<= main_x 24) (<= 24 main_x)), 83450#(and (<= 23 main_x) (<= main_x 23)), 83453#(and (<= main_x 26) (<= 26 main_x)), 83452#(and (<= main_x 25) (<= 25 main_x)), 83455#(and (<= main_x 28) (<= 28 main_x)), 83454#(and (<= main_x 27) (<= 27 main_x))] [2018-07-23 13:55:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 16110 backedges. 0 proven. 16110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:15,432 INFO L450 AbstractCegarLoop]: Interpolant automaton has 182 states [2018-07-23 13:55:15,432 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2018-07-23 13:55:15,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=32581, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:55:15,433 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 182 states. [2018-07-23 13:55:17,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:17,722 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2018-07-23 13:55:17,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2018-07-23 13:55:17,722 INFO L78 Accepts]: Start accepts. Automaton has 182 states. Word has length 181 [2018-07-23 13:55:17,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:17,723 INFO L225 Difference]: With dead ends: 184 [2018-07-23 13:55:17,723 INFO L226 Difference]: Without dead ends: 183 [2018-07-23 13:55:17,724 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=361, Invalid=32581, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:55:17,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-23 13:55:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2018-07-23 13:55:17,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2018-07-23 13:55:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2018-07-23 13:55:17,731 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 181 [2018-07-23 13:55:17,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:17,731 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 183 transitions. [2018-07-23 13:55:17,731 INFO L472 AbstractCegarLoop]: Interpolant automaton has 182 states. [2018-07-23 13:55:17,731 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 183 transitions. [2018-07-23 13:55:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-07-23 13:55:17,731 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:17,732 INFO L357 BasicCegarLoop]: trace histogram [180, 1, 1] [2018-07-23 13:55:17,732 INFO L414 AbstractCegarLoop]: === Iteration 181 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:17,732 INFO L82 PathProgramCache]: Analyzing trace with hash 732871699, now seen corresponding path program 180 times [2018-07-23 13:55:17,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,368 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:19,368 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [181] total 181 [2018-07-23 13:55:19,368 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:19,368 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 13:55:19,369 INFO L185 omatonBuilderFactory]: Interpolants [84481#(and (<= main_x 138) (<= 138 main_x)), 84480#(and (<= 137 main_x) (<= main_x 137)), 84483#(and (<= main_x 140) (<= 140 main_x)), 84482#(and (<= main_x 139) (<= 139 main_x)), 84485#(and (<= 142 main_x) (<= main_x 142)), 84484#(and (<= main_x 141) (<= 141 main_x)), 84487#(and (<= main_x 144) (<= 144 main_x)), 84486#(and (<= 143 main_x) (<= main_x 143)), 84489#(and (<= main_x 146) (<= 146 main_x)), 84488#(and (<= 145 main_x) (<= main_x 145)), 84491#(and (<= 148 main_x) (<= main_x 148)), 84490#(and (<= main_x 147) (<= 147 main_x)), 84493#(and (<= 150 main_x) (<= main_x 150)), 84492#(and (<= 149 main_x) (<= main_x 149)), 84495#(and (<= 152 main_x) (<= main_x 152)), 84494#(and (<= 151 main_x) (<= main_x 151)), 84497#(and (<= main_x 154) (<= 154 main_x)), 84496#(and (<= main_x 153) (<= 153 main_x)), 84499#(and (<= main_x 156) (<= 156 main_x)), 84498#(and (<= 155 main_x) (<= main_x 155)), 84501#(and (<= main_x 158) (<= 158 main_x)), 84500#(and (<= main_x 157) (<= 157 main_x)), 84503#(and (<= 160 main_x) (<= main_x 160)), 84502#(and (<= 159 main_x) (<= main_x 159)), 84505#(and (<= main_x 162) (<= 162 main_x)), 84504#(and (<= 161 main_x) (<= main_x 161)), 84507#(and (<= 164 main_x) (<= main_x 164)), 84506#(and (<= 163 main_x) (<= main_x 163)), 84509#(and (<= main_x 166) (<= 166 main_x)), 84508#(and (<= 165 main_x) (<= main_x 165)), 84511#(and (<= main_x 168) (<= 168 main_x)), 84510#(and (<= 167 main_x) (<= main_x 167)), 84513#(and (<= 170 main_x) (<= main_x 170)), 84512#(and (<= main_x 169) (<= 169 main_x)), 84515#(and (<= 172 main_x) (<= main_x 172)), 84514#(and (<= 171 main_x) (<= main_x 171)), 84517#(and (<= 174 main_x) (<= main_x 174)), 84516#(and (<= main_x 173) (<= 173 main_x)), 84519#(and (<= main_x 176) (<= 176 main_x)), 84518#(and (<= 175 main_x) (<= main_x 175)), 84521#(and (<= main_x 178) (<= 178 main_x)), 84520#(and (<= 177 main_x) (<= main_x 177)), 84523#(or (<= (+ main_x 76) 0) (<= 180 main_x)), 84522#(and (<= main_x 179) (<= 179 main_x)), 84341#true, 84343#(and (<= main_x 0) (<= 0 main_x)), 84342#false, 84345#(and (<= 2 main_x) (<= main_x 2)), 84344#(and (<= 1 main_x) (<= main_x 1)), 84347#(and (<= main_x 4) (<= 4 main_x)), 84346#(and (<= 3 main_x) (<= main_x 3)), 84349#(and (<= 6 main_x) (<= main_x 6)), 84348#(and (<= 5 main_x) (<= main_x 5)), 84351#(and (<= main_x 8) (<= 8 main_x)), 84350#(and (<= main_x 7) (<= 7 main_x)), 84353#(and (<= main_x 10) (<= 10 main_x)), 84352#(and (<= 9 main_x) (<= main_x 9)), 84355#(and (<= 12 main_x) (<= main_x 12)), 84354#(and (<= 11 main_x) (<= main_x 11)), 84357#(and (<= 14 main_x) (<= main_x 14)), 84356#(and (<= 13 main_x) (<= main_x 13)), 84359#(and (<= main_x 16) (<= 16 main_x)), 84358#(and (<= 15 main_x) (<= main_x 15)), 84361#(and (<= main_x 18) (<= 18 main_x)), 84360#(and (<= 17 main_x) (<= main_x 17)), 84363#(and (<= 20 main_x) (<= main_x 20)), 84362#(and (<= main_x 19) (<= 19 main_x)), 84365#(and (<= main_x 22) (<= 22 main_x)), 84364#(and (<= 21 main_x) (<= main_x 21)), 84367#(and (<= main_x 24) (<= 24 main_x)), 84366#(and (<= 23 main_x) (<= main_x 23)), 84369#(and (<= main_x 26) (<= 26 main_x)), 84368#(and (<= main_x 25) (<= 25 main_x)), 84371#(and (<= main_x 28) (<= 28 main_x)), 84370#(and (<= main_x 27) (<= 27 main_x)), 84373#(and (<= 30 main_x) (<= main_x 30)), 84372#(and (<= main_x 29) (<= 29 main_x)), 84375#(and (<= 32 main_x) (<= main_x 32)), 84374#(and (<= 31 main_x) (<= main_x 31)), 84377#(and (<= 34 main_x) (<= main_x 34)), 84376#(and (<= main_x 33) (<= 33 main_x)), 84379#(and (<= main_x 36) (<= 36 main_x)), 84378#(and (<= main_x 35) (<= 35 main_x)), 84381#(and (<= 38 main_x) (<= main_x 38)), 84380#(and (<= 37 main_x) (<= main_x 37)), 84383#(and (<= main_x 40) (<= 40 main_x)), 84382#(and (<= 39 main_x) (<= main_x 39)), 84385#(and (<= 42 main_x) (<= main_x 42)), 84384#(and (<= 41 main_x) (<= main_x 41)), 84387#(and (<= main_x 44) (<= 44 main_x)), 84386#(and (<= 43 main_x) (<= main_x 43)), 84389#(and (<= 46 main_x) (<= main_x 46)), 84388#(and (<= 45 main_x) (<= main_x 45)), 84391#(and (<= 48 main_x) (<= main_x 48)), 84390#(and (<= 47 main_x) (<= main_x 47)), 84393#(and (<= main_x 50) (<= 50 main_x)), 84392#(and (<= main_x 49) (<= 49 main_x)), 84395#(and (<= 52 main_x) (<= main_x 52)), 84394#(and (<= main_x 51) (<= 51 main_x)), 84397#(and (<= 54 main_x) (<= main_x 54)), 84396#(and (<= main_x 53) (<= 53 main_x)), 84399#(and (<= main_x 56) (<= 56 main_x)), 84398#(and (<= 55 main_x) (<= main_x 55)), 84401#(and (<= 58 main_x) (<= main_x 58)), 84400#(and (<= main_x 57) (<= 57 main_x)), 84403#(and (<= main_x 60) (<= 60 main_x)), 84402#(and (<= 59 main_x) (<= main_x 59)), 84405#(and (<= main_x 62) (<= 62 main_x)), 84404#(and (<= main_x 61) (<= 61 main_x)), 84407#(and (<= 64 main_x) (<= main_x 64)), 84406#(and (<= 63 main_x) (<= main_x 63)), 84409#(and (<= main_x 66) (<= 66 main_x)), 84408#(and (<= main_x 65) (<= 65 main_x)), 84411#(and (<= main_x 68) (<= 68 main_x)), 84410#(and (<= 67 main_x) (<= main_x 67)), 84413#(and (<= main_x 70) (<= 70 main_x)), 84412#(and (<= 69 main_x) (<= main_x 69)), 84415#(and (<= main_x 72) (<= 72 main_x)), 84414#(and (<= 71 main_x) (<= main_x 71)), 84417#(and (<= 74 main_x) (<= main_x 74)), 84416#(and (<= main_x 73) (<= 73 main_x)), 84419#(and (<= main_x 76) (<= 76 main_x)), 84418#(and (<= main_x 75) (<= 75 main_x)), 84421#(and (<= 78 main_x) (<= main_x 78)), 84420#(and (<= 77 main_x) (<= main_x 77)), 84423#(and (<= main_x 80) (<= 80 main_x)), 84422#(and (<= 79 main_x) (<= main_x 79)), 84425#(and (<= 82 main_x) (<= main_x 82)), 84424#(and (<= 81 main_x) (<= main_x 81)), 84427#(and (<= main_x 84) (<= 84 main_x)), 84426#(and (<= 83 main_x) (<= main_x 83)), 84429#(and (<= 86 main_x) (<= main_x 86)), 84428#(and (<= 85 main_x) (<= main_x 85)), 84431#(and (<= 88 main_x) (<= main_x 88)), 84430#(and (<= 87 main_x) (<= main_x 87)), 84433#(and (<= 90 main_x) (<= main_x 90)), 84432#(and (<= 89 main_x) (<= main_x 89)), 84435#(and (<= main_x 92) (<= 92 main_x)), 84434#(and (<= main_x 91) (<= 91 main_x)), 84437#(and (<= 94 main_x) (<= main_x 94)), 84436#(and (<= 93 main_x) (<= main_x 93)), 84439#(and (<= 96 main_x) (<= main_x 96)), 84438#(and (<= 95 main_x) (<= main_x 95)), 84441#(and (<= main_x 98) (<= 98 main_x)), 84440#(and (<= main_x 97) (<= 97 main_x)), 84443#(and (<= main_x 100) (<= 100 main_x)), 84442#(and (<= 99 main_x) (<= main_x 99)), 84445#(and (<= main_x 102) (<= 102 main_x)), 84444#(and (<= 101 main_x) (<= main_x 101)), 84447#(and (<= main_x 104) (<= 104 main_x)), 84446#(and (<= main_x 103) (<= 103 main_x)), 84449#(and (<= 106 main_x) (<= main_x 106)), 84448#(and (<= main_x 105) (<= 105 main_x)), 84451#(and (<= 108 main_x) (<= main_x 108)), 84450#(and (<= main_x 107) (<= 107 main_x)), 84453#(and (<= main_x 110) (<= 110 main_x)), 84452#(and (<= 109 main_x) (<= main_x 109)), 84455#(and (<= main_x 112) (<= 112 main_x)), 84454#(and (<= main_x 111) (<= 111 main_x)), 84457#(and (<= 114 main_x) (<= main_x 114)), 84456#(and (<= main_x 113) (<= 113 main_x)), 84459#(and (<= 116 main_x) (<= main_x 116)), 84458#(and (<= 115 main_x) (<= main_x 115)), 84461#(and (<= 118 main_x) (<= main_x 118)), 84460#(and (<= 117 main_x) (<= main_x 117)), 84463#(and (<= main_x 120) (<= 120 main_x)), 84462#(and (<= main_x 119) (<= 119 main_x)), 84465#(and (<= 122 main_x) (<= main_x 122)), 84464#(and (<= 121 main_x) (<= main_x 121)), 84467#(and (<= main_x 124) (<= 124 main_x)), 84466#(and (<= main_x 123) (<= 123 main_x)), 84469#(and (<= 126 main_x) (<= main_x 126)), 84468#(and (<= main_x 125) (<= 125 main_x)), 84471#(and (<= main_x 128) (<= 128 main_x)), 84470#(and (<= main_x 127) (<= 127 main_x)), 84473#(and (<= main_x 130) (<= 130 main_x)), 84472#(and (<= 129 main_x) (<= main_x 129)), 84475#(and (<= 132 main_x) (<= main_x 132)), 84474#(and (<= main_x 131) (<= 131 main_x)), 84477#(and (<= main_x 134) (<= 134 main_x)), 84476#(and (<= main_x 133) (<= 133 main_x)), 84479#(and (<= main_x 136) (<= 136 main_x)), 84478#(and (<= main_x 135) (<= 135 main_x))] [2018-07-23 13:55:19,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16290 backedges. 0 proven. 16290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:19,370 INFO L450 AbstractCegarLoop]: Interpolant automaton has 183 states [2018-07-23 13:55:19,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2018-07-23 13:55:19,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=32943, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:55:19,371 INFO L87 Difference]: Start difference. First operand 183 states and 183 transitions. Second operand 183 states. [2018-07-23 13:55:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:21,690 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2018-07-23 13:55:21,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2018-07-23 13:55:21,690 INFO L78 Accepts]: Start accepts. Automaton has 183 states. Word has length 182 [2018-07-23 13:55:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:21,691 INFO L225 Difference]: With dead ends: 185 [2018-07-23 13:55:21,691 INFO L226 Difference]: Without dead ends: 184 [2018-07-23 13:55:21,692 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=363, Invalid=32943, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:55:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-07-23 13:55:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-07-23 13:55:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-07-23 13:55:21,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2018-07-23 13:55:21,700 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 182 [2018-07-23 13:55:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:21,700 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2018-07-23 13:55:21,700 INFO L472 AbstractCegarLoop]: Interpolant automaton has 183 states. [2018-07-23 13:55:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2018-07-23 13:55:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-23 13:55:21,700 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:21,700 INFO L357 BasicCegarLoop]: trace histogram [181, 1, 1] [2018-07-23 13:55:21,701 INFO L414 AbstractCegarLoop]: === Iteration 182 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1244186424, now seen corresponding path program 181 times [2018-07-23 13:55:21,701 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16471 backedges. 0 proven. 16471 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:23,621 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:23,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [182] total 182 [2018-07-23 13:55:23,621 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:23,622 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 13:55:23,622 INFO L185 omatonBuilderFactory]: Interpolants [85263#false, 85262#true, 85265#(and (<= 1 main_x) (<= main_x 1)), 85264#(and (<= main_x 0) (<= 0 main_x)), 85267#(and (<= 3 main_x) (<= main_x 3)), 85266#(and (<= 2 main_x) (<= main_x 2)), 85269#(and (<= 5 main_x) (<= main_x 5)), 85268#(and (<= main_x 4) (<= 4 main_x)), 85271#(and (<= main_x 7) (<= 7 main_x)), 85270#(and (<= 6 main_x) (<= main_x 6)), 85273#(and (<= 9 main_x) (<= main_x 9)), 85272#(and (<= main_x 8) (<= 8 main_x)), 85275#(and (<= 11 main_x) (<= main_x 11)), 85274#(and (<= main_x 10) (<= 10 main_x)), 85277#(and (<= 13 main_x) (<= main_x 13)), 85276#(and (<= 12 main_x) (<= main_x 12)), 85279#(and (<= 15 main_x) (<= main_x 15)), 85278#(and (<= 14 main_x) (<= main_x 14)), 85281#(and (<= 17 main_x) (<= main_x 17)), 85280#(and (<= main_x 16) (<= 16 main_x)), 85283#(and (<= main_x 19) (<= 19 main_x)), 85282#(and (<= main_x 18) (<= 18 main_x)), 85285#(and (<= 21 main_x) (<= main_x 21)), 85284#(and (<= 20 main_x) (<= main_x 20)), 85287#(and (<= 23 main_x) (<= main_x 23)), 85286#(and (<= main_x 22) (<= 22 main_x)), 85289#(and (<= main_x 25) (<= 25 main_x)), 85288#(and (<= main_x 24) (<= 24 main_x)), 85291#(and (<= main_x 27) (<= 27 main_x)), 85290#(and (<= main_x 26) (<= 26 main_x)), 85293#(and (<= main_x 29) (<= 29 main_x)), 85292#(and (<= main_x 28) (<= 28 main_x)), 85295#(and (<= 31 main_x) (<= main_x 31)), 85294#(and (<= 30 main_x) (<= main_x 30)), 85297#(and (<= main_x 33) (<= 33 main_x)), 85296#(and (<= 32 main_x) (<= main_x 32)), 85299#(and (<= main_x 35) (<= 35 main_x)), 85298#(and (<= 34 main_x) (<= main_x 34)), 85301#(and (<= 37 main_x) (<= main_x 37)), 85300#(and (<= main_x 36) (<= 36 main_x)), 85303#(and (<= 39 main_x) (<= main_x 39)), 85302#(and (<= 38 main_x) (<= main_x 38)), 85305#(and (<= 41 main_x) (<= main_x 41)), 85304#(and (<= main_x 40) (<= 40 main_x)), 85307#(and (<= 43 main_x) (<= main_x 43)), 85306#(and (<= 42 main_x) (<= main_x 42)), 85309#(and (<= 45 main_x) (<= main_x 45)), 85308#(and (<= main_x 44) (<= 44 main_x)), 85311#(and (<= 47 main_x) (<= main_x 47)), 85310#(and (<= 46 main_x) (<= main_x 46)), 85313#(and (<= main_x 49) (<= 49 main_x)), 85312#(and (<= 48 main_x) (<= main_x 48)), 85315#(and (<= main_x 51) (<= 51 main_x)), 85314#(and (<= main_x 50) (<= 50 main_x)), 85317#(and (<= main_x 53) (<= 53 main_x)), 85316#(and (<= 52 main_x) (<= main_x 52)), 85319#(and (<= 55 main_x) (<= main_x 55)), 85318#(and (<= 54 main_x) (<= main_x 54)), 85321#(and (<= main_x 57) (<= 57 main_x)), 85320#(and (<= main_x 56) (<= 56 main_x)), 85323#(and (<= 59 main_x) (<= main_x 59)), 85322#(and (<= 58 main_x) (<= main_x 58)), 85325#(and (<= main_x 61) (<= 61 main_x)), 85324#(and (<= main_x 60) (<= 60 main_x)), 85327#(and (<= 63 main_x) (<= main_x 63)), 85326#(and (<= main_x 62) (<= 62 main_x)), 85329#(and (<= main_x 65) (<= 65 main_x)), 85328#(and (<= 64 main_x) (<= main_x 64)), 85331#(and (<= 67 main_x) (<= main_x 67)), 85330#(and (<= main_x 66) (<= 66 main_x)), 85333#(and (<= 69 main_x) (<= main_x 69)), 85332#(and (<= main_x 68) (<= 68 main_x)), 85335#(and (<= 71 main_x) (<= main_x 71)), 85334#(and (<= main_x 70) (<= 70 main_x)), 85337#(and (<= main_x 73) (<= 73 main_x)), 85336#(and (<= main_x 72) (<= 72 main_x)), 85339#(and (<= main_x 75) (<= 75 main_x)), 85338#(and (<= 74 main_x) (<= main_x 74)), 85341#(and (<= 77 main_x) (<= main_x 77)), 85340#(and (<= main_x 76) (<= 76 main_x)), 85343#(and (<= 79 main_x) (<= main_x 79)), 85342#(and (<= 78 main_x) (<= main_x 78)), 85345#(and (<= 81 main_x) (<= main_x 81)), 85344#(and (<= main_x 80) (<= 80 main_x)), 85347#(and (<= 83 main_x) (<= main_x 83)), 85346#(and (<= 82 main_x) (<= main_x 82)), 85349#(and (<= 85 main_x) (<= main_x 85)), 85348#(and (<= main_x 84) (<= 84 main_x)), 85351#(and (<= 87 main_x) (<= main_x 87)), 85350#(and (<= 86 main_x) (<= main_x 86)), 85353#(and (<= 89 main_x) (<= main_x 89)), 85352#(and (<= 88 main_x) (<= main_x 88)), 85355#(and (<= main_x 91) (<= 91 main_x)), 85354#(and (<= 90 main_x) (<= main_x 90)), 85357#(and (<= 93 main_x) (<= main_x 93)), 85356#(and (<= main_x 92) (<= 92 main_x)), 85359#(and (<= 95 main_x) (<= main_x 95)), 85358#(and (<= 94 main_x) (<= main_x 94)), 85361#(and (<= main_x 97) (<= 97 main_x)), 85360#(and (<= 96 main_x) (<= main_x 96)), 85363#(and (<= 99 main_x) (<= main_x 99)), 85362#(and (<= main_x 98) (<= 98 main_x)), 85365#(and (<= 101 main_x) (<= main_x 101)), 85364#(and (<= main_x 100) (<= 100 main_x)), 85367#(and (<= main_x 103) (<= 103 main_x)), 85366#(and (<= main_x 102) (<= 102 main_x)), 85369#(and (<= main_x 105) (<= 105 main_x)), 85368#(and (<= main_x 104) (<= 104 main_x)), 85371#(and (<= main_x 107) (<= 107 main_x)), 85370#(and (<= 106 main_x) (<= main_x 106)), 85373#(and (<= 109 main_x) (<= main_x 109)), 85372#(and (<= 108 main_x) (<= main_x 108)), 85375#(and (<= main_x 111) (<= 111 main_x)), 85374#(and (<= main_x 110) (<= 110 main_x)), 85377#(and (<= main_x 113) (<= 113 main_x)), 85376#(and (<= main_x 112) (<= 112 main_x)), 85379#(and (<= 115 main_x) (<= main_x 115)), 85378#(and (<= 114 main_x) (<= main_x 114)), 85381#(and (<= 117 main_x) (<= main_x 117)), 85380#(and (<= 116 main_x) (<= main_x 116)), 85383#(and (<= main_x 119) (<= 119 main_x)), 85382#(and (<= 118 main_x) (<= main_x 118)), 85385#(and (<= 121 main_x) (<= main_x 121)), 85384#(and (<= main_x 120) (<= 120 main_x)), 85387#(and (<= main_x 123) (<= 123 main_x)), 85386#(and (<= 122 main_x) (<= main_x 122)), 85389#(and (<= main_x 125) (<= 125 main_x)), 85388#(and (<= main_x 124) (<= 124 main_x)), 85391#(and (<= main_x 127) (<= 127 main_x)), 85390#(and (<= 126 main_x) (<= main_x 126)), 85393#(and (<= 129 main_x) (<= main_x 129)), 85392#(and (<= main_x 128) (<= 128 main_x)), 85395#(and (<= main_x 131) (<= 131 main_x)), 85394#(and (<= main_x 130) (<= 130 main_x)), 85397#(and (<= main_x 133) (<= 133 main_x)), 85396#(and (<= 132 main_x) (<= main_x 132)), 85399#(and (<= main_x 135) (<= 135 main_x)), 85398#(and (<= main_x 134) (<= 134 main_x)), 85401#(and (<= 137 main_x) (<= main_x 137)), 85400#(and (<= main_x 136) (<= 136 main_x)), 85403#(and (<= main_x 139) (<= 139 main_x)), 85402#(and (<= main_x 138) (<= 138 main_x)), 85405#(and (<= main_x 141) (<= 141 main_x)), 85404#(and (<= main_x 140) (<= 140 main_x)), 85407#(and (<= 143 main_x) (<= main_x 143)), 85406#(and (<= 142 main_x) (<= main_x 142)), 85409#(and (<= 145 main_x) (<= main_x 145)), 85408#(and (<= main_x 144) (<= 144 main_x)), 85411#(and (<= main_x 147) (<= 147 main_x)), 85410#(and (<= main_x 146) (<= 146 main_x)), 85413#(and (<= 149 main_x) (<= main_x 149)), 85412#(and (<= 148 main_x) (<= main_x 148)), 85415#(and (<= 151 main_x) (<= main_x 151)), 85414#(and (<= 150 main_x) (<= main_x 150)), 85417#(and (<= main_x 153) (<= 153 main_x)), 85416#(and (<= 152 main_x) (<= main_x 152)), 85419#(and (<= 155 main_x) (<= main_x 155)), 85418#(and (<= main_x 154) (<= 154 main_x)), 85421#(and (<= main_x 157) (<= 157 main_x)), 85420#(and (<= main_x 156) (<= 156 main_x)), 85423#(and (<= 159 main_x) (<= main_x 159)), 85422#(and (<= main_x 158) (<= 158 main_x)), 85425#(and (<= 161 main_x) (<= main_x 161)), 85424#(and (<= 160 main_x) (<= main_x 160)), 85427#(and (<= 163 main_x) (<= main_x 163)), 85426#(and (<= main_x 162) (<= 162 main_x)), 85429#(and (<= 165 main_x) (<= main_x 165)), 85428#(and (<= 164 main_x) (<= main_x 164)), 85431#(and (<= 167 main_x) (<= main_x 167)), 85430#(and (<= main_x 166) (<= 166 main_x)), 85433#(and (<= main_x 169) (<= 169 main_x)), 85432#(and (<= main_x 168) (<= 168 main_x)), 85435#(and (<= 171 main_x) (<= main_x 171)), 85434#(and (<= 170 main_x) (<= main_x 170)), 85437#(and (<= main_x 173) (<= 173 main_x)), 85436#(and (<= 172 main_x) (<= main_x 172)), 85439#(and (<= 175 main_x) (<= main_x 175)), 85438#(and (<= 174 main_x) (<= main_x 174)), 85441#(and (<= 177 main_x) (<= main_x 177)), 85440#(and (<= main_x 176) (<= 176 main_x)), 85443#(and (<= main_x 179) (<= 179 main_x)), 85442#(and (<= main_x 178) (<= 178 main_x)), 85445#(or (<= 181 main_x) (<= (+ main_x 75) 0)), 85444#(and (<= main_x 180) (<= 180 main_x))] [2018-07-23 13:55:23,623 INFO L134 CoverageAnalysis]: Checked inductivity of 16471 backedges. 0 proven. 16471 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:23,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 184 states [2018-07-23 13:55:23,623 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2018-07-23 13:55:23,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=365, Invalid=33307, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:55:23,625 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand 184 states. [2018-07-23 13:55:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:25,999 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2018-07-23 13:55:25,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-07-23 13:55:25,999 INFO L78 Accepts]: Start accepts. Automaton has 184 states. Word has length 183 [2018-07-23 13:55:26,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:26,000 INFO L225 Difference]: With dead ends: 186 [2018-07-23 13:55:26,000 INFO L226 Difference]: Without dead ends: 185 [2018-07-23 13:55:26,001 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=365, Invalid=33307, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:55:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-07-23 13:55:26,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2018-07-23 13:55:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-07-23 13:55:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 185 transitions. [2018-07-23 13:55:26,012 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 185 transitions. Word has length 183 [2018-07-23 13:55:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:26,012 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 185 transitions. [2018-07-23 13:55:26,012 INFO L472 AbstractCegarLoop]: Interpolant automaton has 184 states. [2018-07-23 13:55:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 185 transitions. [2018-07-23 13:55:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-23 13:55:26,013 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:26,013 INFO L357 BasicCegarLoop]: trace histogram [182, 1, 1] [2018-07-23 13:55:26,013 INFO L414 AbstractCegarLoop]: === Iteration 183 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:26,013 INFO L82 PathProgramCache]: Analyzing trace with hash -84926285, now seen corresponding path program 182 times [2018-07-23 13:55:26,013 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,827 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:27,828 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [183] total 183 [2018-07-23 13:55:27,828 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:27,828 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 13:55:27,828 INFO L185 omatonBuilderFactory]: Interpolants [86273#(and (<= 83 main_x) (<= main_x 83)), 86272#(and (<= 82 main_x) (<= main_x 82)), 86275#(and (<= 85 main_x) (<= main_x 85)), 86274#(and (<= main_x 84) (<= 84 main_x)), 86277#(and (<= 87 main_x) (<= main_x 87)), 86276#(and (<= 86 main_x) (<= main_x 86)), 86279#(and (<= 89 main_x) (<= main_x 89)), 86278#(and (<= 88 main_x) (<= main_x 88)), 86281#(and (<= main_x 91) (<= 91 main_x)), 86280#(and (<= 90 main_x) (<= main_x 90)), 86283#(and (<= 93 main_x) (<= main_x 93)), 86282#(and (<= main_x 92) (<= 92 main_x)), 86285#(and (<= 95 main_x) (<= main_x 95)), 86284#(and (<= 94 main_x) (<= main_x 94)), 86287#(and (<= main_x 97) (<= 97 main_x)), 86286#(and (<= 96 main_x) (<= main_x 96)), 86289#(and (<= 99 main_x) (<= main_x 99)), 86288#(and (<= main_x 98) (<= 98 main_x)), 86291#(and (<= 101 main_x) (<= main_x 101)), 86290#(and (<= main_x 100) (<= 100 main_x)), 86293#(and (<= main_x 103) (<= 103 main_x)), 86292#(and (<= main_x 102) (<= 102 main_x)), 86295#(and (<= main_x 105) (<= 105 main_x)), 86294#(and (<= main_x 104) (<= 104 main_x)), 86297#(and (<= main_x 107) (<= 107 main_x)), 86296#(and (<= 106 main_x) (<= main_x 106)), 86299#(and (<= 109 main_x) (<= main_x 109)), 86298#(and (<= 108 main_x) (<= main_x 108)), 86301#(and (<= main_x 111) (<= 111 main_x)), 86300#(and (<= main_x 110) (<= 110 main_x)), 86303#(and (<= main_x 113) (<= 113 main_x)), 86302#(and (<= main_x 112) (<= 112 main_x)), 86305#(and (<= 115 main_x) (<= main_x 115)), 86304#(and (<= 114 main_x) (<= main_x 114)), 86307#(and (<= 117 main_x) (<= main_x 117)), 86306#(and (<= 116 main_x) (<= main_x 116)), 86309#(and (<= main_x 119) (<= 119 main_x)), 86308#(and (<= 118 main_x) (<= main_x 118)), 86311#(and (<= 121 main_x) (<= main_x 121)), 86310#(and (<= main_x 120) (<= 120 main_x)), 86313#(and (<= main_x 123) (<= 123 main_x)), 86312#(and (<= 122 main_x) (<= main_x 122)), 86315#(and (<= main_x 125) (<= 125 main_x)), 86314#(and (<= main_x 124) (<= 124 main_x)), 86317#(and (<= main_x 127) (<= 127 main_x)), 86316#(and (<= 126 main_x) (<= main_x 126)), 86319#(and (<= 129 main_x) (<= main_x 129)), 86318#(and (<= main_x 128) (<= 128 main_x)), 86321#(and (<= main_x 131) (<= 131 main_x)), 86320#(and (<= main_x 130) (<= 130 main_x)), 86323#(and (<= main_x 133) (<= 133 main_x)), 86322#(and (<= 132 main_x) (<= main_x 132)), 86325#(and (<= main_x 135) (<= 135 main_x)), 86324#(and (<= main_x 134) (<= 134 main_x)), 86327#(and (<= 137 main_x) (<= main_x 137)), 86326#(and (<= main_x 136) (<= 136 main_x)), 86329#(and (<= main_x 139) (<= 139 main_x)), 86328#(and (<= main_x 138) (<= 138 main_x)), 86331#(and (<= main_x 141) (<= 141 main_x)), 86330#(and (<= main_x 140) (<= 140 main_x)), 86333#(and (<= 143 main_x) (<= main_x 143)), 86332#(and (<= 142 main_x) (<= main_x 142)), 86335#(and (<= 145 main_x) (<= main_x 145)), 86334#(and (<= main_x 144) (<= 144 main_x)), 86337#(and (<= main_x 147) (<= 147 main_x)), 86336#(and (<= main_x 146) (<= 146 main_x)), 86339#(and (<= 149 main_x) (<= main_x 149)), 86338#(and (<= 148 main_x) (<= main_x 148)), 86341#(and (<= 151 main_x) (<= main_x 151)), 86340#(and (<= 150 main_x) (<= main_x 150)), 86343#(and (<= main_x 153) (<= 153 main_x)), 86342#(and (<= 152 main_x) (<= main_x 152)), 86345#(and (<= 155 main_x) (<= main_x 155)), 86344#(and (<= main_x 154) (<= 154 main_x)), 86347#(and (<= main_x 157) (<= 157 main_x)), 86346#(and (<= main_x 156) (<= 156 main_x)), 86349#(and (<= 159 main_x) (<= main_x 159)), 86348#(and (<= main_x 158) (<= 158 main_x)), 86351#(and (<= 161 main_x) (<= main_x 161)), 86350#(and (<= 160 main_x) (<= main_x 160)), 86353#(and (<= 163 main_x) (<= main_x 163)), 86352#(and (<= main_x 162) (<= 162 main_x)), 86355#(and (<= 165 main_x) (<= main_x 165)), 86354#(and (<= 164 main_x) (<= main_x 164)), 86357#(and (<= 167 main_x) (<= main_x 167)), 86356#(and (<= main_x 166) (<= 166 main_x)), 86359#(and (<= main_x 169) (<= 169 main_x)), 86358#(and (<= main_x 168) (<= 168 main_x)), 86361#(and (<= 171 main_x) (<= main_x 171)), 86360#(and (<= 170 main_x) (<= main_x 170)), 86363#(and (<= main_x 173) (<= 173 main_x)), 86362#(and (<= 172 main_x) (<= main_x 172)), 86365#(and (<= 175 main_x) (<= main_x 175)), 86364#(and (<= 174 main_x) (<= main_x 174)), 86367#(and (<= 177 main_x) (<= main_x 177)), 86366#(and (<= main_x 176) (<= 176 main_x)), 86369#(and (<= main_x 179) (<= 179 main_x)), 86368#(and (<= main_x 178) (<= 178 main_x)), 86371#(and (<= 181 main_x) (<= main_x 181)), 86370#(and (<= main_x 180) (<= 180 main_x)), 86372#(or (<= 182 main_x) (<= (+ main_x 74) 0)), 86189#false, 86188#true, 86191#(and (<= 1 main_x) (<= main_x 1)), 86190#(and (<= main_x 0) (<= 0 main_x)), 86193#(and (<= 3 main_x) (<= main_x 3)), 86192#(and (<= 2 main_x) (<= main_x 2)), 86195#(and (<= 5 main_x) (<= main_x 5)), 86194#(and (<= main_x 4) (<= 4 main_x)), 86197#(and (<= main_x 7) (<= 7 main_x)), 86196#(and (<= 6 main_x) (<= main_x 6)), 86199#(and (<= 9 main_x) (<= main_x 9)), 86198#(and (<= main_x 8) (<= 8 main_x)), 86201#(and (<= 11 main_x) (<= main_x 11)), 86200#(and (<= main_x 10) (<= 10 main_x)), 86203#(and (<= 13 main_x) (<= main_x 13)), 86202#(and (<= 12 main_x) (<= main_x 12)), 86205#(and (<= 15 main_x) (<= main_x 15)), 86204#(and (<= 14 main_x) (<= main_x 14)), 86207#(and (<= 17 main_x) (<= main_x 17)), 86206#(and (<= main_x 16) (<= 16 main_x)), 86209#(and (<= main_x 19) (<= 19 main_x)), 86208#(and (<= main_x 18) (<= 18 main_x)), 86211#(and (<= 21 main_x) (<= main_x 21)), 86210#(and (<= 20 main_x) (<= main_x 20)), 86213#(and (<= 23 main_x) (<= main_x 23)), 86212#(and (<= main_x 22) (<= 22 main_x)), 86215#(and (<= main_x 25) (<= 25 main_x)), 86214#(and (<= main_x 24) (<= 24 main_x)), 86217#(and (<= main_x 27) (<= 27 main_x)), 86216#(and (<= main_x 26) (<= 26 main_x)), 86219#(and (<= main_x 29) (<= 29 main_x)), 86218#(and (<= main_x 28) (<= 28 main_x)), 86221#(and (<= 31 main_x) (<= main_x 31)), 86220#(and (<= 30 main_x) (<= main_x 30)), 86223#(and (<= main_x 33) (<= 33 main_x)), 86222#(and (<= 32 main_x) (<= main_x 32)), 86225#(and (<= main_x 35) (<= 35 main_x)), 86224#(and (<= 34 main_x) (<= main_x 34)), 86227#(and (<= 37 main_x) (<= main_x 37)), 86226#(and (<= main_x 36) (<= 36 main_x)), 86229#(and (<= 39 main_x) (<= main_x 39)), 86228#(and (<= 38 main_x) (<= main_x 38)), 86231#(and (<= 41 main_x) (<= main_x 41)), 86230#(and (<= main_x 40) (<= 40 main_x)), 86233#(and (<= 43 main_x) (<= main_x 43)), 86232#(and (<= 42 main_x) (<= main_x 42)), 86235#(and (<= 45 main_x) (<= main_x 45)), 86234#(and (<= main_x 44) (<= 44 main_x)), 86237#(and (<= 47 main_x) (<= main_x 47)), 86236#(and (<= 46 main_x) (<= main_x 46)), 86239#(and (<= main_x 49) (<= 49 main_x)), 86238#(and (<= 48 main_x) (<= main_x 48)), 86241#(and (<= main_x 51) (<= 51 main_x)), 86240#(and (<= main_x 50) (<= 50 main_x)), 86243#(and (<= main_x 53) (<= 53 main_x)), 86242#(and (<= 52 main_x) (<= main_x 52)), 86245#(and (<= 55 main_x) (<= main_x 55)), 86244#(and (<= 54 main_x) (<= main_x 54)), 86247#(and (<= main_x 57) (<= 57 main_x)), 86246#(and (<= main_x 56) (<= 56 main_x)), 86249#(and (<= 59 main_x) (<= main_x 59)), 86248#(and (<= 58 main_x) (<= main_x 58)), 86251#(and (<= main_x 61) (<= 61 main_x)), 86250#(and (<= main_x 60) (<= 60 main_x)), 86253#(and (<= 63 main_x) (<= main_x 63)), 86252#(and (<= main_x 62) (<= 62 main_x)), 86255#(and (<= main_x 65) (<= 65 main_x)), 86254#(and (<= 64 main_x) (<= main_x 64)), 86257#(and (<= 67 main_x) (<= main_x 67)), 86256#(and (<= main_x 66) (<= 66 main_x)), 86259#(and (<= 69 main_x) (<= main_x 69)), 86258#(and (<= main_x 68) (<= 68 main_x)), 86261#(and (<= 71 main_x) (<= main_x 71)), 86260#(and (<= main_x 70) (<= 70 main_x)), 86263#(and (<= main_x 73) (<= 73 main_x)), 86262#(and (<= main_x 72) (<= 72 main_x)), 86265#(and (<= main_x 75) (<= 75 main_x)), 86264#(and (<= 74 main_x) (<= main_x 74)), 86267#(and (<= 77 main_x) (<= main_x 77)), 86266#(and (<= main_x 76) (<= 76 main_x)), 86269#(and (<= 79 main_x) (<= main_x 79)), 86268#(and (<= 78 main_x) (<= main_x 78)), 86271#(and (<= 81 main_x) (<= main_x 81)), 86270#(and (<= main_x 80) (<= 80 main_x))] [2018-07-23 13:55:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 16653 backedges. 0 proven. 16653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:27,829 INFO L450 AbstractCegarLoop]: Interpolant automaton has 185 states [2018-07-23 13:55:27,830 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2018-07-23 13:55:27,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=367, Invalid=33673, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:55:27,831 INFO L87 Difference]: Start difference. First operand 185 states and 185 transitions. Second operand 185 states. [2018-07-23 13:55:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:30,121 INFO L93 Difference]: Finished difference Result 187 states and 187 transitions. [2018-07-23 13:55:30,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2018-07-23 13:55:30,121 INFO L78 Accepts]: Start accepts. Automaton has 185 states. Word has length 184 [2018-07-23 13:55:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:30,122 INFO L225 Difference]: With dead ends: 187 [2018-07-23 13:55:30,122 INFO L226 Difference]: Without dead ends: 186 [2018-07-23 13:55:30,122 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=33673, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:55:30,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-07-23 13:55:30,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-07-23 13:55:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-07-23 13:55:30,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2018-07-23 13:55:30,129 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 184 [2018-07-23 13:55:30,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:30,129 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2018-07-23 13:55:30,130 INFO L472 AbstractCegarLoop]: Interpolant automaton has 185 states. [2018-07-23 13:55:30,130 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2018-07-23 13:55:30,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-23 13:55:30,130 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:30,130 INFO L357 BasicCegarLoop]: trace histogram [183, 1, 1] [2018-07-23 13:55:30,130 INFO L414 AbstractCegarLoop]: === Iteration 184 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:30,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1662252696, now seen corresponding path program 183 times [2018-07-23 13:55:30,130 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16836 backedges. 0 proven. 16836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,980 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:31,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [184] total 184 [2018-07-23 13:55:31,981 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:31,981 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 13:55:31,981 INFO L185 omatonBuilderFactory]: Interpolants [87297#(and (<= main_x 176) (<= 176 main_x)), 87296#(and (<= 175 main_x) (<= main_x 175)), 87299#(and (<= main_x 178) (<= 178 main_x)), 87298#(and (<= 177 main_x) (<= main_x 177)), 87301#(and (<= main_x 180) (<= 180 main_x)), 87300#(and (<= main_x 179) (<= 179 main_x)), 87303#(and (<= 182 main_x) (<= main_x 182)), 87302#(and (<= 181 main_x) (<= main_x 181)), 87304#(or (<= (+ main_x 73) 0) (<= 183 main_x)), 87119#true, 87121#(and (<= main_x 0) (<= 0 main_x)), 87120#false, 87123#(and (<= 2 main_x) (<= main_x 2)), 87122#(and (<= 1 main_x) (<= main_x 1)), 87125#(and (<= main_x 4) (<= 4 main_x)), 87124#(and (<= 3 main_x) (<= main_x 3)), 87127#(and (<= 6 main_x) (<= main_x 6)), 87126#(and (<= 5 main_x) (<= main_x 5)), 87129#(and (<= main_x 8) (<= 8 main_x)), 87128#(and (<= main_x 7) (<= 7 main_x)), 87131#(and (<= main_x 10) (<= 10 main_x)), 87130#(and (<= 9 main_x) (<= main_x 9)), 87133#(and (<= 12 main_x) (<= main_x 12)), 87132#(and (<= 11 main_x) (<= main_x 11)), 87135#(and (<= 14 main_x) (<= main_x 14)), 87134#(and (<= 13 main_x) (<= main_x 13)), 87137#(and (<= main_x 16) (<= 16 main_x)), 87136#(and (<= 15 main_x) (<= main_x 15)), 87139#(and (<= main_x 18) (<= 18 main_x)), 87138#(and (<= 17 main_x) (<= main_x 17)), 87141#(and (<= 20 main_x) (<= main_x 20)), 87140#(and (<= main_x 19) (<= 19 main_x)), 87143#(and (<= main_x 22) (<= 22 main_x)), 87142#(and (<= 21 main_x) (<= main_x 21)), 87145#(and (<= main_x 24) (<= 24 main_x)), 87144#(and (<= 23 main_x) (<= main_x 23)), 87147#(and (<= main_x 26) (<= 26 main_x)), 87146#(and (<= main_x 25) (<= 25 main_x)), 87149#(and (<= main_x 28) (<= 28 main_x)), 87148#(and (<= main_x 27) (<= 27 main_x)), 87151#(and (<= 30 main_x) (<= main_x 30)), 87150#(and (<= main_x 29) (<= 29 main_x)), 87153#(and (<= 32 main_x) (<= main_x 32)), 87152#(and (<= 31 main_x) (<= main_x 31)), 87155#(and (<= 34 main_x) (<= main_x 34)), 87154#(and (<= main_x 33) (<= 33 main_x)), 87157#(and (<= main_x 36) (<= 36 main_x)), 87156#(and (<= main_x 35) (<= 35 main_x)), 87159#(and (<= 38 main_x) (<= main_x 38)), 87158#(and (<= 37 main_x) (<= main_x 37)), 87161#(and (<= main_x 40) (<= 40 main_x)), 87160#(and (<= 39 main_x) (<= main_x 39)), 87163#(and (<= 42 main_x) (<= main_x 42)), 87162#(and (<= 41 main_x) (<= main_x 41)), 87165#(and (<= main_x 44) (<= 44 main_x)), 87164#(and (<= 43 main_x) (<= main_x 43)), 87167#(and (<= 46 main_x) (<= main_x 46)), 87166#(and (<= 45 main_x) (<= main_x 45)), 87169#(and (<= 48 main_x) (<= main_x 48)), 87168#(and (<= 47 main_x) (<= main_x 47)), 87171#(and (<= main_x 50) (<= 50 main_x)), 87170#(and (<= main_x 49) (<= 49 main_x)), 87173#(and (<= 52 main_x) (<= main_x 52)), 87172#(and (<= main_x 51) (<= 51 main_x)), 87175#(and (<= 54 main_x) (<= main_x 54)), 87174#(and (<= main_x 53) (<= 53 main_x)), 87177#(and (<= main_x 56) (<= 56 main_x)), 87176#(and (<= 55 main_x) (<= main_x 55)), 87179#(and (<= 58 main_x) (<= main_x 58)), 87178#(and (<= main_x 57) (<= 57 main_x)), 87181#(and (<= main_x 60) (<= 60 main_x)), 87180#(and (<= 59 main_x) (<= main_x 59)), 87183#(and (<= main_x 62) (<= 62 main_x)), 87182#(and (<= main_x 61) (<= 61 main_x)), 87185#(and (<= 64 main_x) (<= main_x 64)), 87184#(and (<= 63 main_x) (<= main_x 63)), 87187#(and (<= main_x 66) (<= 66 main_x)), 87186#(and (<= main_x 65) (<= 65 main_x)), 87189#(and (<= main_x 68) (<= 68 main_x)), 87188#(and (<= 67 main_x) (<= main_x 67)), 87191#(and (<= main_x 70) (<= 70 main_x)), 87190#(and (<= 69 main_x) (<= main_x 69)), 87193#(and (<= main_x 72) (<= 72 main_x)), 87192#(and (<= 71 main_x) (<= main_x 71)), 87195#(and (<= 74 main_x) (<= main_x 74)), 87194#(and (<= main_x 73) (<= 73 main_x)), 87197#(and (<= main_x 76) (<= 76 main_x)), 87196#(and (<= main_x 75) (<= 75 main_x)), 87199#(and (<= 78 main_x) (<= main_x 78)), 87198#(and (<= 77 main_x) (<= main_x 77)), 87201#(and (<= main_x 80) (<= 80 main_x)), 87200#(and (<= 79 main_x) (<= main_x 79)), 87203#(and (<= 82 main_x) (<= main_x 82)), 87202#(and (<= 81 main_x) (<= main_x 81)), 87205#(and (<= main_x 84) (<= 84 main_x)), 87204#(and (<= 83 main_x) (<= main_x 83)), 87207#(and (<= 86 main_x) (<= main_x 86)), 87206#(and (<= 85 main_x) (<= main_x 85)), 87209#(and (<= 88 main_x) (<= main_x 88)), 87208#(and (<= 87 main_x) (<= main_x 87)), 87211#(and (<= 90 main_x) (<= main_x 90)), 87210#(and (<= 89 main_x) (<= main_x 89)), 87213#(and (<= main_x 92) (<= 92 main_x)), 87212#(and (<= main_x 91) (<= 91 main_x)), 87215#(and (<= 94 main_x) (<= main_x 94)), 87214#(and (<= 93 main_x) (<= main_x 93)), 87217#(and (<= 96 main_x) (<= main_x 96)), 87216#(and (<= 95 main_x) (<= main_x 95)), 87219#(and (<= main_x 98) (<= 98 main_x)), 87218#(and (<= main_x 97) (<= 97 main_x)), 87221#(and (<= main_x 100) (<= 100 main_x)), 87220#(and (<= 99 main_x) (<= main_x 99)), 87223#(and (<= main_x 102) (<= 102 main_x)), 87222#(and (<= 101 main_x) (<= main_x 101)), 87225#(and (<= main_x 104) (<= 104 main_x)), 87224#(and (<= main_x 103) (<= 103 main_x)), 87227#(and (<= 106 main_x) (<= main_x 106)), 87226#(and (<= main_x 105) (<= 105 main_x)), 87229#(and (<= 108 main_x) (<= main_x 108)), 87228#(and (<= main_x 107) (<= 107 main_x)), 87231#(and (<= main_x 110) (<= 110 main_x)), 87230#(and (<= 109 main_x) (<= main_x 109)), 87233#(and (<= main_x 112) (<= 112 main_x)), 87232#(and (<= main_x 111) (<= 111 main_x)), 87235#(and (<= 114 main_x) (<= main_x 114)), 87234#(and (<= main_x 113) (<= 113 main_x)), 87237#(and (<= 116 main_x) (<= main_x 116)), 87236#(and (<= 115 main_x) (<= main_x 115)), 87239#(and (<= 118 main_x) (<= main_x 118)), 87238#(and (<= 117 main_x) (<= main_x 117)), 87241#(and (<= main_x 120) (<= 120 main_x)), 87240#(and (<= main_x 119) (<= 119 main_x)), 87243#(and (<= 122 main_x) (<= main_x 122)), 87242#(and (<= 121 main_x) (<= main_x 121)), 87245#(and (<= main_x 124) (<= 124 main_x)), 87244#(and (<= main_x 123) (<= 123 main_x)), 87247#(and (<= 126 main_x) (<= main_x 126)), 87246#(and (<= main_x 125) (<= 125 main_x)), 87249#(and (<= main_x 128) (<= 128 main_x)), 87248#(and (<= main_x 127) (<= 127 main_x)), 87251#(and (<= main_x 130) (<= 130 main_x)), 87250#(and (<= 129 main_x) (<= main_x 129)), 87253#(and (<= 132 main_x) (<= main_x 132)), 87252#(and (<= main_x 131) (<= 131 main_x)), 87255#(and (<= main_x 134) (<= 134 main_x)), 87254#(and (<= main_x 133) (<= 133 main_x)), 87257#(and (<= main_x 136) (<= 136 main_x)), 87256#(and (<= main_x 135) (<= 135 main_x)), 87259#(and (<= main_x 138) (<= 138 main_x)), 87258#(and (<= 137 main_x) (<= main_x 137)), 87261#(and (<= main_x 140) (<= 140 main_x)), 87260#(and (<= main_x 139) (<= 139 main_x)), 87263#(and (<= 142 main_x) (<= main_x 142)), 87262#(and (<= main_x 141) (<= 141 main_x)), 87265#(and (<= main_x 144) (<= 144 main_x)), 87264#(and (<= 143 main_x) (<= main_x 143)), 87267#(and (<= main_x 146) (<= 146 main_x)), 87266#(and (<= 145 main_x) (<= main_x 145)), 87269#(and (<= 148 main_x) (<= main_x 148)), 87268#(and (<= main_x 147) (<= 147 main_x)), 87271#(and (<= 150 main_x) (<= main_x 150)), 87270#(and (<= 149 main_x) (<= main_x 149)), 87273#(and (<= 152 main_x) (<= main_x 152)), 87272#(and (<= 151 main_x) (<= main_x 151)), 87275#(and (<= main_x 154) (<= 154 main_x)), 87274#(and (<= main_x 153) (<= 153 main_x)), 87277#(and (<= main_x 156) (<= 156 main_x)), 87276#(and (<= 155 main_x) (<= main_x 155)), 87279#(and (<= main_x 158) (<= 158 main_x)), 87278#(and (<= main_x 157) (<= 157 main_x)), 87281#(and (<= 160 main_x) (<= main_x 160)), 87280#(and (<= 159 main_x) (<= main_x 159)), 87283#(and (<= main_x 162) (<= 162 main_x)), 87282#(and (<= 161 main_x) (<= main_x 161)), 87285#(and (<= 164 main_x) (<= main_x 164)), 87284#(and (<= 163 main_x) (<= main_x 163)), 87287#(and (<= main_x 166) (<= 166 main_x)), 87286#(and (<= 165 main_x) (<= main_x 165)), 87289#(and (<= main_x 168) (<= 168 main_x)), 87288#(and (<= 167 main_x) (<= main_x 167)), 87291#(and (<= 170 main_x) (<= main_x 170)), 87290#(and (<= main_x 169) (<= 169 main_x)), 87293#(and (<= 172 main_x) (<= main_x 172)), 87292#(and (<= 171 main_x) (<= main_x 171)), 87295#(and (<= 174 main_x) (<= main_x 174)), 87294#(and (<= main_x 173) (<= 173 main_x))] [2018-07-23 13:55:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 16836 backedges. 0 proven. 16836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:31,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 186 states [2018-07-23 13:55:31,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2018-07-23 13:55:31,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=34041, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:55:31,983 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand 186 states. [2018-07-23 13:55:34,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:34,325 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2018-07-23 13:55:34,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2018-07-23 13:55:34,326 INFO L78 Accepts]: Start accepts. Automaton has 186 states. Word has length 185 [2018-07-23 13:55:34,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:34,326 INFO L225 Difference]: With dead ends: 188 [2018-07-23 13:55:34,326 INFO L226 Difference]: Without dead ends: 187 [2018-07-23 13:55:34,327 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=369, Invalid=34041, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:55:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-07-23 13:55:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2018-07-23 13:55:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-07-23 13:55:34,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2018-07-23 13:55:34,334 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 185 [2018-07-23 13:55:34,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:34,334 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2018-07-23 13:55:34,334 INFO L472 AbstractCegarLoop]: Interpolant automaton has 186 states. [2018-07-23 13:55:34,334 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2018-07-23 13:55:34,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-23 13:55:34,335 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:34,335 INFO L357 BasicCegarLoop]: trace histogram [184, 1, 1] [2018-07-23 13:55:34,335 INFO L414 AbstractCegarLoop]: === Iteration 185 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:34,335 INFO L82 PathProgramCache]: Analyzing trace with hash -9773741, now seen corresponding path program 184 times [2018-07-23 13:55:34,335 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,169 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:36,169 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [185] total 185 [2018-07-23 13:55:36,169 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:36,170 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 13:55:36,170 INFO L185 omatonBuilderFactory]: Interpolants [88065#(and (<= main_x 8) (<= 8 main_x)), 88064#(and (<= main_x 7) (<= 7 main_x)), 88067#(and (<= main_x 10) (<= 10 main_x)), 88066#(and (<= 9 main_x) (<= main_x 9)), 88069#(and (<= 12 main_x) (<= main_x 12)), 88068#(and (<= 11 main_x) (<= main_x 11)), 88071#(and (<= 14 main_x) (<= main_x 14)), 88070#(and (<= 13 main_x) (<= main_x 13)), 88073#(and (<= main_x 16) (<= 16 main_x)), 88072#(and (<= 15 main_x) (<= main_x 15)), 88075#(and (<= main_x 18) (<= 18 main_x)), 88074#(and (<= 17 main_x) (<= main_x 17)), 88077#(and (<= 20 main_x) (<= main_x 20)), 88076#(and (<= main_x 19) (<= 19 main_x)), 88079#(and (<= main_x 22) (<= 22 main_x)), 88078#(and (<= 21 main_x) (<= main_x 21)), 88081#(and (<= main_x 24) (<= 24 main_x)), 88080#(and (<= 23 main_x) (<= main_x 23)), 88083#(and (<= main_x 26) (<= 26 main_x)), 88082#(and (<= main_x 25) (<= 25 main_x)), 88085#(and (<= main_x 28) (<= 28 main_x)), 88084#(and (<= main_x 27) (<= 27 main_x)), 88087#(and (<= 30 main_x) (<= main_x 30)), 88086#(and (<= main_x 29) (<= 29 main_x)), 88089#(and (<= 32 main_x) (<= main_x 32)), 88088#(and (<= 31 main_x) (<= main_x 31)), 88091#(and (<= 34 main_x) (<= main_x 34)), 88090#(and (<= main_x 33) (<= 33 main_x)), 88093#(and (<= main_x 36) (<= 36 main_x)), 88092#(and (<= main_x 35) (<= 35 main_x)), 88095#(and (<= 38 main_x) (<= main_x 38)), 88094#(and (<= 37 main_x) (<= main_x 37)), 88097#(and (<= main_x 40) (<= 40 main_x)), 88096#(and (<= 39 main_x) (<= main_x 39)), 88099#(and (<= 42 main_x) (<= main_x 42)), 88098#(and (<= 41 main_x) (<= main_x 41)), 88101#(and (<= main_x 44) (<= 44 main_x)), 88100#(and (<= 43 main_x) (<= main_x 43)), 88103#(and (<= 46 main_x) (<= main_x 46)), 88102#(and (<= 45 main_x) (<= main_x 45)), 88105#(and (<= 48 main_x) (<= main_x 48)), 88104#(and (<= 47 main_x) (<= main_x 47)), 88107#(and (<= main_x 50) (<= 50 main_x)), 88106#(and (<= main_x 49) (<= 49 main_x)), 88109#(and (<= 52 main_x) (<= main_x 52)), 88108#(and (<= main_x 51) (<= 51 main_x)), 88111#(and (<= 54 main_x) (<= main_x 54)), 88110#(and (<= main_x 53) (<= 53 main_x)), 88113#(and (<= main_x 56) (<= 56 main_x)), 88112#(and (<= 55 main_x) (<= main_x 55)), 88115#(and (<= 58 main_x) (<= main_x 58)), 88114#(and (<= main_x 57) (<= 57 main_x)), 88117#(and (<= main_x 60) (<= 60 main_x)), 88116#(and (<= 59 main_x) (<= main_x 59)), 88119#(and (<= main_x 62) (<= 62 main_x)), 88118#(and (<= main_x 61) (<= 61 main_x)), 88121#(and (<= 64 main_x) (<= main_x 64)), 88120#(and (<= 63 main_x) (<= main_x 63)), 88123#(and (<= main_x 66) (<= 66 main_x)), 88122#(and (<= main_x 65) (<= 65 main_x)), 88125#(and (<= main_x 68) (<= 68 main_x)), 88124#(and (<= 67 main_x) (<= main_x 67)), 88127#(and (<= main_x 70) (<= 70 main_x)), 88126#(and (<= 69 main_x) (<= main_x 69)), 88129#(and (<= main_x 72) (<= 72 main_x)), 88128#(and (<= 71 main_x) (<= main_x 71)), 88131#(and (<= 74 main_x) (<= main_x 74)), 88130#(and (<= main_x 73) (<= 73 main_x)), 88133#(and (<= main_x 76) (<= 76 main_x)), 88132#(and (<= main_x 75) (<= 75 main_x)), 88135#(and (<= 78 main_x) (<= main_x 78)), 88134#(and (<= 77 main_x) (<= main_x 77)), 88137#(and (<= main_x 80) (<= 80 main_x)), 88136#(and (<= 79 main_x) (<= main_x 79)), 88139#(and (<= 82 main_x) (<= main_x 82)), 88138#(and (<= 81 main_x) (<= main_x 81)), 88141#(and (<= main_x 84) (<= 84 main_x)), 88140#(and (<= 83 main_x) (<= main_x 83)), 88143#(and (<= 86 main_x) (<= main_x 86)), 88142#(and (<= 85 main_x) (<= main_x 85)), 88145#(and (<= 88 main_x) (<= main_x 88)), 88144#(and (<= 87 main_x) (<= main_x 87)), 88147#(and (<= 90 main_x) (<= main_x 90)), 88146#(and (<= 89 main_x) (<= main_x 89)), 88149#(and (<= main_x 92) (<= 92 main_x)), 88148#(and (<= main_x 91) (<= 91 main_x)), 88151#(and (<= 94 main_x) (<= main_x 94)), 88150#(and (<= 93 main_x) (<= main_x 93)), 88153#(and (<= 96 main_x) (<= main_x 96)), 88152#(and (<= 95 main_x) (<= main_x 95)), 88155#(and (<= main_x 98) (<= 98 main_x)), 88154#(and (<= main_x 97) (<= 97 main_x)), 88157#(and (<= main_x 100) (<= 100 main_x)), 88156#(and (<= 99 main_x) (<= main_x 99)), 88159#(and (<= main_x 102) (<= 102 main_x)), 88158#(and (<= 101 main_x) (<= main_x 101)), 88161#(and (<= main_x 104) (<= 104 main_x)), 88160#(and (<= main_x 103) (<= 103 main_x)), 88163#(and (<= 106 main_x) (<= main_x 106)), 88162#(and (<= main_x 105) (<= 105 main_x)), 88165#(and (<= 108 main_x) (<= main_x 108)), 88164#(and (<= main_x 107) (<= 107 main_x)), 88167#(and (<= main_x 110) (<= 110 main_x)), 88166#(and (<= 109 main_x) (<= main_x 109)), 88169#(and (<= main_x 112) (<= 112 main_x)), 88168#(and (<= main_x 111) (<= 111 main_x)), 88171#(and (<= 114 main_x) (<= main_x 114)), 88170#(and (<= main_x 113) (<= 113 main_x)), 88173#(and (<= 116 main_x) (<= main_x 116)), 88172#(and (<= 115 main_x) (<= main_x 115)), 88175#(and (<= 118 main_x) (<= main_x 118)), 88174#(and (<= 117 main_x) (<= main_x 117)), 88177#(and (<= main_x 120) (<= 120 main_x)), 88176#(and (<= main_x 119) (<= 119 main_x)), 88179#(and (<= 122 main_x) (<= main_x 122)), 88178#(and (<= 121 main_x) (<= main_x 121)), 88181#(and (<= main_x 124) (<= 124 main_x)), 88180#(and (<= main_x 123) (<= 123 main_x)), 88183#(and (<= 126 main_x) (<= main_x 126)), 88182#(and (<= main_x 125) (<= 125 main_x)), 88185#(and (<= main_x 128) (<= 128 main_x)), 88184#(and (<= main_x 127) (<= 127 main_x)), 88187#(and (<= main_x 130) (<= 130 main_x)), 88186#(and (<= 129 main_x) (<= main_x 129)), 88189#(and (<= 132 main_x) (<= main_x 132)), 88188#(and (<= main_x 131) (<= 131 main_x)), 88191#(and (<= main_x 134) (<= 134 main_x)), 88190#(and (<= main_x 133) (<= 133 main_x)), 88193#(and (<= main_x 136) (<= 136 main_x)), 88192#(and (<= main_x 135) (<= 135 main_x)), 88195#(and (<= main_x 138) (<= 138 main_x)), 88194#(and (<= 137 main_x) (<= main_x 137)), 88197#(and (<= main_x 140) (<= 140 main_x)), 88196#(and (<= main_x 139) (<= 139 main_x)), 88199#(and (<= 142 main_x) (<= main_x 142)), 88198#(and (<= main_x 141) (<= 141 main_x)), 88201#(and (<= main_x 144) (<= 144 main_x)), 88200#(and (<= 143 main_x) (<= main_x 143)), 88203#(and (<= main_x 146) (<= 146 main_x)), 88202#(and (<= 145 main_x) (<= main_x 145)), 88205#(and (<= 148 main_x) (<= main_x 148)), 88204#(and (<= main_x 147) (<= 147 main_x)), 88207#(and (<= 150 main_x) (<= main_x 150)), 88206#(and (<= 149 main_x) (<= main_x 149)), 88209#(and (<= 152 main_x) (<= main_x 152)), 88208#(and (<= 151 main_x) (<= main_x 151)), 88211#(and (<= main_x 154) (<= 154 main_x)), 88210#(and (<= main_x 153) (<= 153 main_x)), 88213#(and (<= main_x 156) (<= 156 main_x)), 88212#(and (<= 155 main_x) (<= main_x 155)), 88215#(and (<= main_x 158) (<= 158 main_x)), 88214#(and (<= main_x 157) (<= 157 main_x)), 88217#(and (<= 160 main_x) (<= main_x 160)), 88216#(and (<= 159 main_x) (<= main_x 159)), 88219#(and (<= main_x 162) (<= 162 main_x)), 88218#(and (<= 161 main_x) (<= main_x 161)), 88221#(and (<= 164 main_x) (<= main_x 164)), 88220#(and (<= 163 main_x) (<= main_x 163)), 88223#(and (<= main_x 166) (<= 166 main_x)), 88222#(and (<= 165 main_x) (<= main_x 165)), 88225#(and (<= main_x 168) (<= 168 main_x)), 88224#(and (<= 167 main_x) (<= main_x 167)), 88227#(and (<= 170 main_x) (<= main_x 170)), 88226#(and (<= main_x 169) (<= 169 main_x)), 88229#(and (<= 172 main_x) (<= main_x 172)), 88228#(and (<= 171 main_x) (<= main_x 171)), 88231#(and (<= 174 main_x) (<= main_x 174)), 88230#(and (<= main_x 173) (<= 173 main_x)), 88233#(and (<= main_x 176) (<= 176 main_x)), 88232#(and (<= 175 main_x) (<= main_x 175)), 88235#(and (<= main_x 178) (<= 178 main_x)), 88234#(and (<= 177 main_x) (<= main_x 177)), 88237#(and (<= main_x 180) (<= 180 main_x)), 88236#(and (<= main_x 179) (<= 179 main_x)), 88239#(and (<= 182 main_x) (<= main_x 182)), 88238#(and (<= 181 main_x) (<= main_x 181)), 88241#(or (<= 184 main_x) (<= (+ main_x 72) 0)), 88240#(and (<= 183 main_x) (<= main_x 183)), 88055#true, 88057#(and (<= main_x 0) (<= 0 main_x)), 88056#false, 88059#(and (<= 2 main_x) (<= main_x 2)), 88058#(and (<= 1 main_x) (<= main_x 1)), 88061#(and (<= main_x 4) (<= 4 main_x)), 88060#(and (<= 3 main_x) (<= main_x 3)), 88063#(and (<= 6 main_x) (<= main_x 6)), 88062#(and (<= 5 main_x) (<= main_x 5))] [2018-07-23 13:55:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 17020 backedges. 0 proven. 17020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,171 INFO L450 AbstractCegarLoop]: Interpolant automaton has 187 states [2018-07-23 13:55:36,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 187 interpolants. [2018-07-23 13:55:36,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=34411, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:55:36,172 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand 187 states. [2018-07-23 13:55:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:38,537 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-07-23 13:55:38,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2018-07-23 13:55:38,537 INFO L78 Accepts]: Start accepts. Automaton has 187 states. Word has length 186 [2018-07-23 13:55:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:38,538 INFO L225 Difference]: With dead ends: 189 [2018-07-23 13:55:38,538 INFO L226 Difference]: Without dead ends: 188 [2018-07-23 13:55:38,539 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=371, Invalid=34411, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:55:38,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-07-23 13:55:38,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-07-23 13:55:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-07-23 13:55:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2018-07-23 13:55:38,546 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 186 [2018-07-23 13:55:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:38,546 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2018-07-23 13:55:38,546 INFO L472 AbstractCegarLoop]: Interpolant automaton has 187 states. [2018-07-23 13:55:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2018-07-23 13:55:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-23 13:55:38,547 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:38,547 INFO L357 BasicCegarLoop]: trace histogram [185, 1, 1] [2018-07-23 13:55:38,547 INFO L414 AbstractCegarLoop]: === Iteration 186 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:38,547 INFO L82 PathProgramCache]: Analyzing trace with hash -302985736, now seen corresponding path program 185 times [2018-07-23 13:55:38,547 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,311 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:40,311 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [186] total 186 [2018-07-23 13:55:40,311 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:40,312 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 13:55:40,312 INFO L185 omatonBuilderFactory]: Interpolants [89089#(and (<= main_x 91) (<= 91 main_x)), 89088#(and (<= 90 main_x) (<= main_x 90)), 89091#(and (<= 93 main_x) (<= main_x 93)), 89090#(and (<= main_x 92) (<= 92 main_x)), 89093#(and (<= 95 main_x) (<= main_x 95)), 89092#(and (<= 94 main_x) (<= main_x 94)), 89095#(and (<= main_x 97) (<= 97 main_x)), 89094#(and (<= 96 main_x) (<= main_x 96)), 89097#(and (<= 99 main_x) (<= main_x 99)), 89096#(and (<= main_x 98) (<= 98 main_x)), 89099#(and (<= 101 main_x) (<= main_x 101)), 89098#(and (<= main_x 100) (<= 100 main_x)), 89101#(and (<= main_x 103) (<= 103 main_x)), 89100#(and (<= main_x 102) (<= 102 main_x)), 89103#(and (<= main_x 105) (<= 105 main_x)), 89102#(and (<= main_x 104) (<= 104 main_x)), 89105#(and (<= main_x 107) (<= 107 main_x)), 89104#(and (<= 106 main_x) (<= main_x 106)), 89107#(and (<= 109 main_x) (<= main_x 109)), 89106#(and (<= 108 main_x) (<= main_x 108)), 89109#(and (<= main_x 111) (<= 111 main_x)), 89108#(and (<= main_x 110) (<= 110 main_x)), 89111#(and (<= main_x 113) (<= 113 main_x)), 89110#(and (<= main_x 112) (<= 112 main_x)), 89113#(and (<= 115 main_x) (<= main_x 115)), 89112#(and (<= 114 main_x) (<= main_x 114)), 89115#(and (<= 117 main_x) (<= main_x 117)), 89114#(and (<= 116 main_x) (<= main_x 116)), 89117#(and (<= main_x 119) (<= 119 main_x)), 89116#(and (<= 118 main_x) (<= main_x 118)), 89119#(and (<= 121 main_x) (<= main_x 121)), 89118#(and (<= main_x 120) (<= 120 main_x)), 89121#(and (<= main_x 123) (<= 123 main_x)), 89120#(and (<= 122 main_x) (<= main_x 122)), 89123#(and (<= main_x 125) (<= 125 main_x)), 89122#(and (<= main_x 124) (<= 124 main_x)), 89125#(and (<= main_x 127) (<= 127 main_x)), 89124#(and (<= 126 main_x) (<= main_x 126)), 89127#(and (<= 129 main_x) (<= main_x 129)), 89126#(and (<= main_x 128) (<= 128 main_x)), 89129#(and (<= main_x 131) (<= 131 main_x)), 89128#(and (<= main_x 130) (<= 130 main_x)), 89131#(and (<= main_x 133) (<= 133 main_x)), 89130#(and (<= 132 main_x) (<= main_x 132)), 89133#(and (<= main_x 135) (<= 135 main_x)), 89132#(and (<= main_x 134) (<= 134 main_x)), 89135#(and (<= 137 main_x) (<= main_x 137)), 89134#(and (<= main_x 136) (<= 136 main_x)), 89137#(and (<= main_x 139) (<= 139 main_x)), 89136#(and (<= main_x 138) (<= 138 main_x)), 89139#(and (<= main_x 141) (<= 141 main_x)), 89138#(and (<= main_x 140) (<= 140 main_x)), 89141#(and (<= 143 main_x) (<= main_x 143)), 89140#(and (<= 142 main_x) (<= main_x 142)), 89143#(and (<= 145 main_x) (<= main_x 145)), 89142#(and (<= main_x 144) (<= 144 main_x)), 89145#(and (<= main_x 147) (<= 147 main_x)), 89144#(and (<= main_x 146) (<= 146 main_x)), 89147#(and (<= 149 main_x) (<= main_x 149)), 89146#(and (<= 148 main_x) (<= main_x 148)), 89149#(and (<= 151 main_x) (<= main_x 151)), 89148#(and (<= 150 main_x) (<= main_x 150)), 89151#(and (<= main_x 153) (<= 153 main_x)), 89150#(and (<= 152 main_x) (<= main_x 152)), 89153#(and (<= 155 main_x) (<= main_x 155)), 89152#(and (<= main_x 154) (<= 154 main_x)), 89155#(and (<= main_x 157) (<= 157 main_x)), 89154#(and (<= main_x 156) (<= 156 main_x)), 89157#(and (<= 159 main_x) (<= main_x 159)), 89156#(and (<= main_x 158) (<= 158 main_x)), 89159#(and (<= 161 main_x) (<= main_x 161)), 89158#(and (<= 160 main_x) (<= main_x 160)), 89161#(and (<= 163 main_x) (<= main_x 163)), 89160#(and (<= main_x 162) (<= 162 main_x)), 89163#(and (<= 165 main_x) (<= main_x 165)), 89162#(and (<= 164 main_x) (<= main_x 164)), 89165#(and (<= 167 main_x) (<= main_x 167)), 89164#(and (<= main_x 166) (<= 166 main_x)), 89167#(and (<= main_x 169) (<= 169 main_x)), 89166#(and (<= main_x 168) (<= 168 main_x)), 89169#(and (<= 171 main_x) (<= main_x 171)), 89168#(and (<= 170 main_x) (<= main_x 170)), 89171#(and (<= main_x 173) (<= 173 main_x)), 89170#(and (<= 172 main_x) (<= main_x 172)), 89173#(and (<= 175 main_x) (<= main_x 175)), 89172#(and (<= 174 main_x) (<= main_x 174)), 89175#(and (<= 177 main_x) (<= main_x 177)), 89174#(and (<= main_x 176) (<= 176 main_x)), 89177#(and (<= main_x 179) (<= 179 main_x)), 89176#(and (<= main_x 178) (<= 178 main_x)), 89179#(and (<= 181 main_x) (<= main_x 181)), 89178#(and (<= main_x 180) (<= 180 main_x)), 89181#(and (<= 183 main_x) (<= main_x 183)), 89180#(and (<= 182 main_x) (<= main_x 182)), 89183#(or (<= 185 main_x) (<= (+ main_x 71) 0)), 89182#(and (<= 184 main_x) (<= main_x 184)), 88997#false, 88996#true, 88999#(and (<= 1 main_x) (<= main_x 1)), 88998#(and (<= main_x 0) (<= 0 main_x)), 89001#(and (<= 3 main_x) (<= main_x 3)), 89000#(and (<= 2 main_x) (<= main_x 2)), 89003#(and (<= 5 main_x) (<= main_x 5)), 89002#(and (<= main_x 4) (<= 4 main_x)), 89005#(and (<= main_x 7) (<= 7 main_x)), 89004#(and (<= 6 main_x) (<= main_x 6)), 89007#(and (<= 9 main_x) (<= main_x 9)), 89006#(and (<= main_x 8) (<= 8 main_x)), 89009#(and (<= 11 main_x) (<= main_x 11)), 89008#(and (<= main_x 10) (<= 10 main_x)), 89011#(and (<= 13 main_x) (<= main_x 13)), 89010#(and (<= 12 main_x) (<= main_x 12)), 89013#(and (<= 15 main_x) (<= main_x 15)), 89012#(and (<= 14 main_x) (<= main_x 14)), 89015#(and (<= 17 main_x) (<= main_x 17)), 89014#(and (<= main_x 16) (<= 16 main_x)), 89017#(and (<= main_x 19) (<= 19 main_x)), 89016#(and (<= main_x 18) (<= 18 main_x)), 89019#(and (<= 21 main_x) (<= main_x 21)), 89018#(and (<= 20 main_x) (<= main_x 20)), 89021#(and (<= 23 main_x) (<= main_x 23)), 89020#(and (<= main_x 22) (<= 22 main_x)), 89023#(and (<= main_x 25) (<= 25 main_x)), 89022#(and (<= main_x 24) (<= 24 main_x)), 89025#(and (<= main_x 27) (<= 27 main_x)), 89024#(and (<= main_x 26) (<= 26 main_x)), 89027#(and (<= main_x 29) (<= 29 main_x)), 89026#(and (<= main_x 28) (<= 28 main_x)), 89029#(and (<= 31 main_x) (<= main_x 31)), 89028#(and (<= 30 main_x) (<= main_x 30)), 89031#(and (<= main_x 33) (<= 33 main_x)), 89030#(and (<= 32 main_x) (<= main_x 32)), 89033#(and (<= main_x 35) (<= 35 main_x)), 89032#(and (<= 34 main_x) (<= main_x 34)), 89035#(and (<= 37 main_x) (<= main_x 37)), 89034#(and (<= main_x 36) (<= 36 main_x)), 89037#(and (<= 39 main_x) (<= main_x 39)), 89036#(and (<= 38 main_x) (<= main_x 38)), 89039#(and (<= 41 main_x) (<= main_x 41)), 89038#(and (<= main_x 40) (<= 40 main_x)), 89041#(and (<= 43 main_x) (<= main_x 43)), 89040#(and (<= 42 main_x) (<= main_x 42)), 89043#(and (<= 45 main_x) (<= main_x 45)), 89042#(and (<= main_x 44) (<= 44 main_x)), 89045#(and (<= 47 main_x) (<= main_x 47)), 89044#(and (<= 46 main_x) (<= main_x 46)), 89047#(and (<= main_x 49) (<= 49 main_x)), 89046#(and (<= 48 main_x) (<= main_x 48)), 89049#(and (<= main_x 51) (<= 51 main_x)), 89048#(and (<= main_x 50) (<= 50 main_x)), 89051#(and (<= main_x 53) (<= 53 main_x)), 89050#(and (<= 52 main_x) (<= main_x 52)), 89053#(and (<= 55 main_x) (<= main_x 55)), 89052#(and (<= 54 main_x) (<= main_x 54)), 89055#(and (<= main_x 57) (<= 57 main_x)), 89054#(and (<= main_x 56) (<= 56 main_x)), 89057#(and (<= 59 main_x) (<= main_x 59)), 89056#(and (<= 58 main_x) (<= main_x 58)), 89059#(and (<= main_x 61) (<= 61 main_x)), 89058#(and (<= main_x 60) (<= 60 main_x)), 89061#(and (<= 63 main_x) (<= main_x 63)), 89060#(and (<= main_x 62) (<= 62 main_x)), 89063#(and (<= main_x 65) (<= 65 main_x)), 89062#(and (<= 64 main_x) (<= main_x 64)), 89065#(and (<= 67 main_x) (<= main_x 67)), 89064#(and (<= main_x 66) (<= 66 main_x)), 89067#(and (<= 69 main_x) (<= main_x 69)), 89066#(and (<= main_x 68) (<= 68 main_x)), 89069#(and (<= 71 main_x) (<= main_x 71)), 89068#(and (<= main_x 70) (<= 70 main_x)), 89071#(and (<= main_x 73) (<= 73 main_x)), 89070#(and (<= main_x 72) (<= 72 main_x)), 89073#(and (<= main_x 75) (<= 75 main_x)), 89072#(and (<= 74 main_x) (<= main_x 74)), 89075#(and (<= 77 main_x) (<= main_x 77)), 89074#(and (<= main_x 76) (<= 76 main_x)), 89077#(and (<= 79 main_x) (<= main_x 79)), 89076#(and (<= 78 main_x) (<= main_x 78)), 89079#(and (<= 81 main_x) (<= main_x 81)), 89078#(and (<= main_x 80) (<= 80 main_x)), 89081#(and (<= 83 main_x) (<= main_x 83)), 89080#(and (<= 82 main_x) (<= main_x 82)), 89083#(and (<= 85 main_x) (<= main_x 85)), 89082#(and (<= main_x 84) (<= 84 main_x)), 89085#(and (<= 87 main_x) (<= main_x 87)), 89084#(and (<= 86 main_x) (<= main_x 86)), 89087#(and (<= 89 main_x) (<= main_x 89)), 89086#(and (<= 88 main_x) (<= main_x 88))] [2018-07-23 13:55:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:40,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 188 states [2018-07-23 13:55:40,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2018-07-23 13:55:40,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=34783, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:55:40,314 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 188 states. Received shutdown request... [2018-07-23 13:55:41,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:55:41,292 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:55:41,299 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:55:41,299 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:55:41 BoogieIcfgContainer [2018-07-23 13:55:41,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:55:41,300 INFO L168 Benchmark]: Toolchain (without parser) took 254597.08 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -590.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 13:55:41,312 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:55:41,312 INFO L168 Benchmark]: Boogie Preprocessor took 50.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:55:41,313 INFO L168 Benchmark]: RCFGBuilder took 260.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 13:55:41,313 INFO L168 Benchmark]: TraceAbstraction took 254282.86 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -601.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-23 13:55:41,315 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 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 260.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254282.86 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -601.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 30]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 30). Cancelled while BasicCegarLoop was constructing difference of abstraction (188states) and interpolant automaton (currently 80 states, 188 states before enhancement), while ReachableStatesComputation was computing reachable states (78 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. TIMEOUT Result, 254.2s OverallTime, 186 OverallIterations, 185 TraceHistogramMax, 131.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 371 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 1836885 SolverSat, 232 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 89.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17391 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 82.8s Time, 0.2s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=185, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/1072445 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 185 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 112.5s InterpolantComputationTime, 17577 NumberOfCodeBlocks, 17577 NumberOfCodeBlocksAsserted, 186 NumberOfCheckSat, 17391 ConstructedInterpolants, 0 QuantifiedInterpolants, 13807047 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 186 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1072445 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/HiddenEqualityWithBranches.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-55-41-333.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/HiddenEqualityWithBranches.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-55-41-333.csv Completed graceful shutdown