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/LexIndexValue-Pointer-Reduced.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:51:39,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:51:39,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:51:39,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:51:39,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:51:39,560 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:51:39,562 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:51:39,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:51:39,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:51:39,578 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:51:39,580 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:51:39,580 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:51:39,581 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:51:39,582 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:51:39,585 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:51:39,587 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:51:39,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:51:39,593 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:51:39,595 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:51:39,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:51:39,601 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:51:39,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:51:39,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:51:39,611 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:51:39,611 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:51:39,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:51:39,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:51:39,614 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:51:39,615 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:51:39,619 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:51:39,619 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:51:39,620 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 13:51:39,620 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 13:51:39,620 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 13:51:39,621 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 13:51:39,622 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 13:51:39,626 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 13:51:39,651 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:51:39,651 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:51:39,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:51:39,653 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:51:39,653 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:51:39,654 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:51:39,654 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:51:39,654 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:51:39,720 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:51:39,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:51:39,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:51:39,746 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:51:39,747 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:51:39,748 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/LexIndexValue-Pointer-Reduced.bpl [2018-07-23 13:51:39,748 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/LexIndexValue-Pointer-Reduced.bpl' [2018-07-23 13:51:39,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:51:39,809 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:51:39,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:51:39,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:51:39,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:51:39,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:51:39,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:51:39,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:51:39,870 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:51:39,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/1) ... [2018-07-23 13:51:39,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 13:51:39,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 13:51:40,079 INFO L258 CfgBuilder]: Using library mode [2018-07-23 13:51:40,079 INFO L202 PluginConnector]: Adding new model LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:40 BoogieIcfgContainer [2018-07-23 13:51:40,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:51:40,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:51:40,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:51:40,084 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:51:40,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:51:39" (1/2) ... [2018-07-23 13:51:40,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df99387 and model type LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:51:40, skipping insertion in model container [2018-07-23 13:51:40,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:51:40" (2/2) ... [2018-07-23 13:51:40,089 INFO L112 eAbstractionObserver]: Analyzing ICFG LexIndexValue-Pointer-Reduced.bpl [2018-07-23 13:51:40,098 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:51:40,106 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:51:40,154 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:51:40,155 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:51:40,155 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:51:40,155 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:51:40,156 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:51:40,156 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:51:40,156 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:51:40,156 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:51:40,156 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:51:40,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-07-23 13:51:40,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-23 13:51:40,180 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,181 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-23 13:51:40,181 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,187 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2018-07-23 13:51:40,194 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,264 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 13:51:40,267 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:51:40,268 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-23 13:51:40,270 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,271 INFO L185 omatonBuilderFactory]: Interpolants [8#true, 9#false, 10#(<= (+ main_offset 1048) main_length)] [2018-07-23 13:51:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,272 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 13:51:40,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 13:51:40,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 13:51:40,289 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-07-23 13:51:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,322 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:51:40,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 13:51:40,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-07-23 13:51:40,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,335 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:51:40,335 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 13:51:40,339 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 13:51:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 13:51:40,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 13:51:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 13:51:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-07-23 13:51:40,374 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2018-07-23 13:51:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,374 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-07-23 13:51:40,374 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 13:51:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-07-23 13:51:40,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-07-23 13:51:40,375 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,376 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-07-23 13:51:40,376 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,376 INFO L82 PathProgramCache]: Analyzing trace with hash 28754210, now seen corresponding path program 1 times [2018-07-23 13:51:40,377 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,403 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,403 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2018-07-23 13:51:40,404 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,404 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 13:51:40,404 INFO L185 omatonBuilderFactory]: Interpolants [41#true, 42#false, 43#(<= (+ main_offset 1048) main_length), 44#(<= (+ main_offset 1044) main_length)] [2018-07-23 13:51:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,407 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:51:40,407 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:51:40,408 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:51:40,408 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 4 states. [2018-07-23 13:51:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,428 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-07-23 13:51:40,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:51:40,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-07-23 13:51:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,430 INFO L225 Difference]: With dead ends: 9 [2018-07-23 13:51:40,430 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:51:40,431 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 13:51:40,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:51:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-23 13:51:40,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-23 13:51:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-07-23 13:51:40,435 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-07-23 13:51:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,435 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-07-23 13:51:40,436 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:51:40,436 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-07-23 13:51:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 13:51:40,436 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,437 INFO L357 BasicCegarLoop]: trace histogram [3, 2, 1, 1] [2018-07-23 13:51:40,437 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1862993124, now seen corresponding path program 2 times [2018-07-23 13:51:40,437 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,488 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 13:51:40,489 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,489 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:51:40,489 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,490 INFO L185 omatonBuilderFactory]: Interpolants [80#false, 81#(<= (+ main_offset 1048) main_length), 82#(<= (+ main_offset 1044) main_length), 83#(<= (+ main_offset 1040) main_length), 79#true] [2018-07-23 13:51:40,490 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 13:51:40,490 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 13:51:40,491 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 13:51:40,491 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-23 13:51:40,496 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2018-07-23 13:51:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,524 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-07-23 13:51:40,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 13:51:40,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-07-23 13:51:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,526 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:51:40,526 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 13:51:40,527 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 13:51:40,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 13:51:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-07-23 13:51:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 13:51:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-07-23 13:51:40,531 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-07-23 13:51:40,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,531 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-07-23 13:51:40,531 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 13:51:40,532 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-07-23 13:51:40,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-07-23 13:51:40,532 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,532 INFO L357 BasicCegarLoop]: trace histogram [4, 3, 1, 1] [2018-07-23 13:51:40,533 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,533 INFO L82 PathProgramCache]: Analyzing trace with hash -664969178, now seen corresponding path program 3 times [2018-07-23 13:51:40,533 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,591 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,591 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 13:51:40,591 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,592 INFO L185 omatonBuilderFactory]: Interpolants [128#(<= (+ main_offset 1048) main_length), 129#(<= (+ main_offset 1044) main_length), 130#(<= (+ main_offset 1040) main_length), 131#(<= (+ main_offset 1036) main_length), 126#true, 127#false] [2018-07-23 13:51:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,592 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 13:51:40,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 13:51:40,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-07-23 13:51:40,593 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-07-23 13:51:40,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,613 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 13:51:40,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-23 13:51:40,614 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-07-23 13:51:40,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,615 INFO L225 Difference]: With dead ends: 13 [2018-07-23 13:51:40,615 INFO L226 Difference]: Without dead ends: 12 [2018-07-23 13:51:40,616 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 13:51:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-07-23 13:51:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-07-23 13:51:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-07-23 13:51:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-07-23 13:51:40,620 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2018-07-23 13:51:40,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,620 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-07-23 13:51:40,621 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 13:51:40,621 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-07-23 13:51:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-23 13:51:40,621 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,622 INFO L357 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2018-07-23 13:51:40,622 INFO L414 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,622 INFO L82 PathProgramCache]: Analyzing trace with hash 914748136, now seen corresponding path program 4 times [2018-07-23 13:51:40,622 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,696 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,696 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-23 13:51:40,696 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,697 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 13:51:40,697 INFO L185 omatonBuilderFactory]: Interpolants [182#true, 183#false, 184#(<= (+ main_offset 1048) main_length), 185#(<= (+ main_offset 1044) main_length), 186#(<= (+ main_offset 1040) main_length), 187#(<= (+ main_offset 1036) main_length), 188#(<= (+ main_offset 1032) main_length)] [2018-07-23 13:51:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,698 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 13:51:40,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 13:51:40,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-07-23 13:51:40,699 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2018-07-23 13:51:40,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,737 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-07-23 13:51:40,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 13:51:40,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-07-23 13:51:40,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,739 INFO L225 Difference]: With dead ends: 15 [2018-07-23 13:51:40,739 INFO L226 Difference]: Without dead ends: 14 [2018-07-23 13:51:40,739 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 13:51:40,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-23 13:51:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-23 13:51:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-23 13:51:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-07-23 13:51:40,744 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-07-23 13:51:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,744 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-07-23 13:51:40,744 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 13:51:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-07-23 13:51:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-23 13:51:40,745 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,745 INFO L357 BasicCegarLoop]: trace histogram [6, 5, 1, 1] [2018-07-23 13:51:40,746 INFO L414 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1395335894, now seen corresponding path program 5 times [2018-07-23 13:51:40,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,789 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,789 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 13:51:40,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,793 INFO L185 omatonBuilderFactory]: Interpolants [247#true, 248#false, 249#(<= (+ main_offset 1048) main_length), 250#(<= (+ main_offset 1044) main_length), 251#(<= (+ main_offset 1040) main_length), 252#(<= (+ main_offset 1036) main_length), 253#(<= (+ main_offset 1032) main_length), 254#(<= (+ main_offset 1028) main_length)] [2018-07-23 13:51:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,794 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 13:51:40,794 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 13:51:40,795 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-23 13:51:40,795 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2018-07-23 13:51:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,850 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-07-23 13:51:40,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 13:51:40,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-07-23 13:51:40,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,851 INFO L225 Difference]: With dead ends: 17 [2018-07-23 13:51:40,851 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 13:51:40,852 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 13:51:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 13:51:40,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-23 13:51:40,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-23 13:51:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-07-23 13:51:40,857 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-07-23 13:51:40,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,857 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-07-23 13:51:40,857 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 13:51:40,858 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-07-23 13:51:40,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 13:51:40,858 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,858 INFO L357 BasicCegarLoop]: trace histogram [7, 6, 1, 1] [2018-07-23 13:51:40,859 INFO L414 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,859 INFO L82 PathProgramCache]: Analyzing trace with hash -887996692, now seen corresponding path program 6 times [2018-07-23 13:51:40,859 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,941 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:40,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2018-07-23 13:51:40,941 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:40,941 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 13:51:40,942 INFO L185 omatonBuilderFactory]: Interpolants [321#true, 322#false, 323#(<= (+ main_offset 1048) main_length), 324#(<= (+ main_offset 1044) main_length), 325#(<= (+ main_offset 1040) main_length), 326#(<= (+ main_offset 1036) main_length), 327#(<= (+ main_offset 1032) main_length), 328#(<= (+ main_offset 1028) main_length), 329#(<= (+ main_offset 1024) main_length)] [2018-07-23 13:51:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:40,943 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 13:51:40,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 13:51:40,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-07-23 13:51:40,944 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2018-07-23 13:51:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:40,977 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 13:51:40,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 13:51:40,978 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-07-23 13:51:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:40,979 INFO L225 Difference]: With dead ends: 19 [2018-07-23 13:51:40,979 INFO L226 Difference]: Without dead ends: 18 [2018-07-23 13:51:40,980 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 13:51:40,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-07-23 13:51:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-07-23 13:51:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-07-23 13:51:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-07-23 13:51:40,990 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-07-23 13:51:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:40,992 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-07-23 13:51:40,992 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 13:51:40,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-07-23 13:51:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-23 13:51:40,993 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:40,993 INFO L357 BasicCegarLoop]: trace histogram [8, 7, 1, 1] [2018-07-23 13:51:40,993 INFO L414 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1333671982, now seen corresponding path program 7 times [2018-07-23 13:51:40,994 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,096 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,096 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-07-23 13:51:41,096 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,097 INFO L185 omatonBuilderFactory]: Interpolants [404#true, 405#false, 406#(<= (+ main_offset 1048) main_length), 407#(<= (+ main_offset 1044) main_length), 408#(<= (+ main_offset 1040) main_length), 409#(<= (+ main_offset 1036) main_length), 410#(<= (+ main_offset 1032) main_length), 411#(<= (+ main_offset 1028) main_length), 412#(<= (+ main_offset 1024) main_length), 413#(<= (+ main_offset 1020) main_length)] [2018-07-23 13:51:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,098 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 13:51:41,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 13:51:41,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-07-23 13:51:41,102 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 10 states. [2018-07-23 13:51:41,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,139 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-07-23 13:51:41,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 13:51:41,139 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2018-07-23 13:51:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,140 INFO L225 Difference]: With dead ends: 21 [2018-07-23 13:51:41,140 INFO L226 Difference]: Without dead ends: 20 [2018-07-23 13:51:41,142 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 13:51:41,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-07-23 13:51:41,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-07-23 13:51:41,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-07-23 13:51:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-07-23 13:51:41,151 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2018-07-23 13:51:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,152 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-07-23 13:51:41,152 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 13:51:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-07-23 13:51:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-07-23 13:51:41,155 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,155 INFO L357 BasicCegarLoop]: trace histogram [9, 8, 1, 1] [2018-07-23 13:51:41,155 INFO L414 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1758521584, now seen corresponding path program 8 times [2018-07-23 13:51:41,156 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,216 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,216 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,216 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 13:51:41,217 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,218 INFO L185 omatonBuilderFactory]: Interpolants [496#true, 497#false, 498#(<= (+ main_offset 1048) main_length), 499#(<= (+ main_offset 1044) main_length), 500#(<= (+ main_offset 1040) main_length), 501#(<= (+ main_offset 1036) main_length), 502#(<= (+ main_offset 1032) main_length), 503#(<= (+ main_offset 1028) main_length), 504#(<= (+ main_offset 1024) main_length), 505#(<= (+ main_offset 1020) main_length), 506#(<= (+ main_offset 1016) main_length)] [2018-07-23 13:51:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,218 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-23 13:51:41,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-23 13:51:41,219 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-07-23 13:51:41,219 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 11 states. [2018-07-23 13:51:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,242 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2018-07-23 13:51:41,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 13:51:41,242 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2018-07-23 13:51:41,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,243 INFO L225 Difference]: With dead ends: 23 [2018-07-23 13:51:41,243 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 13:51:41,244 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 13:51:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 13:51:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-07-23 13:51:41,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-07-23 13:51:41,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-07-23 13:51:41,250 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-07-23 13:51:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,251 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-07-23 13:51:41,251 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-23 13:51:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-07-23 13:51:41,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-23 13:51:41,252 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,252 INFO L357 BasicCegarLoop]: trace histogram [10, 9, 1, 1] [2018-07-23 13:51:41,252 INFO L414 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,253 INFO L82 PathProgramCache]: Analyzing trace with hash 2017095986, now seen corresponding path program 9 times [2018-07-23 13:51:41,253 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,309 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,311 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,311 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-07-23 13:51:41,311 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,312 INFO L185 omatonBuilderFactory]: Interpolants [608#(<= (+ main_offset 1012) main_length), 597#true, 598#false, 599#(<= (+ main_offset 1048) main_length), 600#(<= (+ main_offset 1044) main_length), 601#(<= (+ main_offset 1040) main_length), 602#(<= (+ main_offset 1036) main_length), 603#(<= (+ main_offset 1032) main_length), 604#(<= (+ main_offset 1028) main_length), 605#(<= (+ main_offset 1024) main_length), 606#(<= (+ main_offset 1020) main_length), 607#(<= (+ main_offset 1016) main_length)] [2018-07-23 13:51:41,313 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,313 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-23 13:51:41,313 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-23 13:51:41,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2018-07-23 13:51:41,314 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 12 states. [2018-07-23 13:51:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,346 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2018-07-23 13:51:41,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-23 13:51:41,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2018-07-23 13:51:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,348 INFO L225 Difference]: With dead ends: 25 [2018-07-23 13:51:41,348 INFO L226 Difference]: Without dead ends: 24 [2018-07-23 13:51:41,348 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 13:51:41,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-07-23 13:51:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-07-23 13:51:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-07-23 13:51:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-07-23 13:51:41,354 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2018-07-23 13:51:41,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,354 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-07-23 13:51:41,354 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-23 13:51:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-07-23 13:51:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-23 13:51:41,355 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,356 INFO L357 BasicCegarLoop]: trace histogram [11, 10, 1, 1] [2018-07-23 13:51:41,356 INFO L414 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1398993140, now seen corresponding path program 10 times [2018-07-23 13:51:41,356 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,406 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,407 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-07-23 13:51:41,407 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,408 INFO L185 omatonBuilderFactory]: Interpolants [707#true, 708#false, 709#(<= (+ main_offset 1048) main_length), 710#(<= (+ main_offset 1044) main_length), 711#(<= (+ main_offset 1040) main_length), 712#(<= (+ main_offset 1036) main_length), 713#(<= (+ main_offset 1032) main_length), 714#(<= (+ main_offset 1028) main_length), 715#(<= (+ main_offset 1024) main_length), 716#(<= (+ main_offset 1020) main_length), 717#(<= (+ main_offset 1016) main_length), 718#(<= (+ main_offset 1012) main_length), 719#(<= (+ main_offset 1008) main_length)] [2018-07-23 13:51:41,408 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,408 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-23 13:51:41,409 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-23 13:51:41,409 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2018-07-23 13:51:41,410 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 13 states. [2018-07-23 13:51:41,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,431 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-07-23 13:51:41,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 13:51:41,431 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2018-07-23 13:51:41,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,432 INFO L225 Difference]: With dead ends: 27 [2018-07-23 13:51:41,432 INFO L226 Difference]: Without dead ends: 26 [2018-07-23 13:51:41,433 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 13:51:41,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-07-23 13:51:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-07-23 13:51:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-07-23 13:51:41,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-07-23 13:51:41,439 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2018-07-23 13:51:41,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,439 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-07-23 13:51:41,439 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-23 13:51:41,439 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-07-23 13:51:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-07-23 13:51:41,440 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,441 INFO L357 BasicCegarLoop]: trace histogram [12, 11, 1, 1] [2018-07-23 13:51:41,441 INFO L414 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,441 INFO L82 PathProgramCache]: Analyzing trace with hash 107644982, now seen corresponding path program 11 times [2018-07-23 13:51:41,441 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,514 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,514 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,515 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-07-23 13:51:41,515 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,516 INFO L185 omatonBuilderFactory]: Interpolants [832#(<= (+ main_offset 1032) main_length), 833#(<= (+ main_offset 1028) main_length), 834#(<= (+ main_offset 1024) main_length), 835#(<= (+ main_offset 1020) main_length), 836#(<= (+ main_offset 1016) main_length), 837#(<= (+ main_offset 1012) main_length), 838#(<= (+ main_offset 1008) main_length), 839#(<= (+ main_offset 1004) main_length), 826#true, 827#false, 828#(<= (+ main_offset 1048) main_length), 829#(<= (+ main_offset 1044) main_length), 830#(<= (+ main_offset 1040) main_length), 831#(<= (+ main_offset 1036) main_length)] [2018-07-23 13:51:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,517 INFO L450 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-07-23 13:51:41,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-07-23 13:51:41,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2018-07-23 13:51:41,518 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 14 states. [2018-07-23 13:51:41,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,540 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2018-07-23 13:51:41,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-23 13:51:41,541 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2018-07-23 13:51:41,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,542 INFO L225 Difference]: With dead ends: 29 [2018-07-23 13:51:41,542 INFO L226 Difference]: Without dead ends: 28 [2018-07-23 13:51:41,543 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 13:51:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-07-23 13:51:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-07-23 13:51:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-07-23 13:51:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-07-23 13:51:41,549 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 25 [2018-07-23 13:51:41,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,550 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-07-23 13:51:41,550 INFO L472 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-07-23 13:51:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-07-23 13:51:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-07-23 13:51:41,551 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,551 INFO L357 BasicCegarLoop]: trace histogram [13, 12, 1, 1] [2018-07-23 13:51:41,551 INFO L414 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,552 INFO L82 PathProgramCache]: Analyzing trace with hash 367613688, now seen corresponding path program 12 times [2018-07-23 13:51:41,552 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,612 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,612 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-07-23 13:51:41,612 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,613 INFO L185 omatonBuilderFactory]: Interpolants [960#(<= (+ main_offset 1032) main_length), 961#(<= (+ main_offset 1028) main_length), 962#(<= (+ main_offset 1024) main_length), 963#(<= (+ main_offset 1020) main_length), 964#(<= (+ main_offset 1016) main_length), 965#(<= (+ main_offset 1012) main_length), 966#(<= (+ main_offset 1008) main_length), 967#(<= (+ main_offset 1004) main_length), 968#(<= (+ main_offset 1000) main_length), 954#true, 955#false, 956#(<= (+ main_offset 1048) main_length), 957#(<= (+ main_offset 1044) main_length), 958#(<= (+ main_offset 1040) main_length), 959#(<= (+ main_offset 1036) main_length)] [2018-07-23 13:51:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,614 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-23 13:51:41,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-23 13:51:41,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2018-07-23 13:51:41,615 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 15 states. [2018-07-23 13:51:41,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,651 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-07-23 13:51:41,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-23 13:51:41,651 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2018-07-23 13:51:41,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,652 INFO L225 Difference]: With dead ends: 31 [2018-07-23 13:51:41,652 INFO L226 Difference]: Without dead ends: 30 [2018-07-23 13:51:41,654 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 13:51:41,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-07-23 13:51:41,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-07-23 13:51:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-07-23 13:51:41,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2018-07-23 13:51:41,661 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2018-07-23 13:51:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,662 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2018-07-23 13:51:41,662 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-23 13:51:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2018-07-23 13:51:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-07-23 13:51:41,668 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,668 INFO L357 BasicCegarLoop]: trace histogram [14, 13, 1, 1] [2018-07-23 13:51:41,669 INFO L414 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1089436986, now seen corresponding path program 13 times [2018-07-23 13:51:41,669 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,750 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,751 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-07-23 13:51:41,751 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,752 INFO L185 omatonBuilderFactory]: Interpolants [1091#true, 1092#false, 1093#(<= (+ main_offset 1048) main_length), 1094#(<= (+ main_offset 1044) main_length), 1095#(<= (+ main_offset 1040) main_length), 1096#(<= (+ main_offset 1036) main_length), 1097#(<= (+ main_offset 1032) main_length), 1098#(<= (+ main_offset 1028) main_length), 1099#(<= (+ main_offset 1024) main_length), 1100#(<= (+ main_offset 1020) main_length), 1101#(<= (+ main_offset 1016) main_length), 1102#(<= (+ main_offset 1012) main_length), 1103#(<= (+ main_offset 1008) main_length), 1104#(<= (+ main_offset 1004) main_length), 1105#(<= (+ main_offset 1000) main_length), 1106#(<= (+ main_offset 996) main_length)] [2018-07-23 13:51:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,752 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-23 13:51:41,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-23 13:51:41,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2018-07-23 13:51:41,754 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 16 states. [2018-07-23 13:51:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,791 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-07-23 13:51:41,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-23 13:51:41,791 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 29 [2018-07-23 13:51:41,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,792 INFO L225 Difference]: With dead ends: 33 [2018-07-23 13:51:41,792 INFO L226 Difference]: Without dead ends: 32 [2018-07-23 13:51:41,793 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 13:51:41,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-07-23 13:51:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-07-23 13:51:41,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-07-23 13:51:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-07-23 13:51:41,805 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 29 [2018-07-23 13:51:41,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,808 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-07-23 13:51:41,808 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-23 13:51:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-07-23 13:51:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-07-23 13:51:41,809 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,809 INFO L357 BasicCegarLoop]: trace histogram [15, 14, 1, 1] [2018-07-23 13:51:41,809 INFO L414 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1023075588, now seen corresponding path program 14 times [2018-07-23 13:51:41,810 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:41,883 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 13:51:41,884 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:41,884 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2018-07-23 13:51:41,884 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:41,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:41,885 INFO L185 omatonBuilderFactory]: Interpolants [1248#(<= (+ main_offset 1012) main_length), 1249#(<= (+ main_offset 1008) main_length), 1250#(<= (+ main_offset 1004) main_length), 1251#(<= (+ main_offset 1000) main_length), 1252#(<= (+ main_offset 996) main_length), 1253#(<= (+ main_offset 992) main_length), 1237#true, 1238#false, 1239#(<= (+ main_offset 1048) main_length), 1240#(<= (+ main_offset 1044) main_length), 1241#(<= (+ main_offset 1040) main_length), 1242#(<= (+ main_offset 1036) main_length), 1243#(<= (+ main_offset 1032) main_length), 1244#(<= (+ main_offset 1028) main_length), 1245#(<= (+ main_offset 1024) main_length), 1246#(<= (+ main_offset 1020) main_length), 1247#(<= (+ main_offset 1016) main_length)] [2018-07-23 13:51:41,886 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 13:51:41,886 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 13:51:41,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 13:51:41,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2018-07-23 13:51:41,887 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 17 states. [2018-07-23 13:51:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:41,910 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-07-23 13:51:41,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-07-23 13:51:41,911 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 31 [2018-07-23 13:51:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:41,916 INFO L225 Difference]: With dead ends: 35 [2018-07-23 13:51:41,916 INFO L226 Difference]: Without dead ends: 34 [2018-07-23 13:51:41,917 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 13:51:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-07-23 13:51:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-07-23 13:51:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-07-23 13:51:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-07-23 13:51:41,927 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 31 [2018-07-23 13:51:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:41,927 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-07-23 13:51:41,927 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 13:51:41,928 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-07-23 13:51:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-07-23 13:51:41,929 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:41,929 INFO L357 BasicCegarLoop]: trace histogram [16, 15, 1, 1] [2018-07-23 13:51:41,929 INFO L414 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:41,932 INFO L82 PathProgramCache]: Analyzing trace with hash 371871806, now seen corresponding path program 15 times [2018-07-23 13:51:41,932 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,026 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,026 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,026 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-07-23 13:51:42,027 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,031 INFO L185 omatonBuilderFactory]: Interpolants [1408#(<= (+ main_offset 992) main_length), 1409#(<= (+ main_offset 988) main_length), 1392#true, 1393#false, 1394#(<= (+ main_offset 1048) main_length), 1395#(<= (+ main_offset 1044) main_length), 1396#(<= (+ main_offset 1040) main_length), 1397#(<= (+ main_offset 1036) main_length), 1398#(<= (+ main_offset 1032) main_length), 1399#(<= (+ main_offset 1028) main_length), 1400#(<= (+ main_offset 1024) main_length), 1401#(<= (+ main_offset 1020) main_length), 1402#(<= (+ main_offset 1016) main_length), 1403#(<= (+ main_offset 1012) main_length), 1404#(<= (+ main_offset 1008) main_length), 1405#(<= (+ main_offset 1004) main_length), 1406#(<= (+ main_offset 1000) main_length), 1407#(<= (+ main_offset 996) main_length)] [2018-07-23 13:51:42,031 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,032 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-23 13:51:42,032 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-23 13:51:42,033 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2018-07-23 13:51:42,033 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 18 states. [2018-07-23 13:51:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,059 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-07-23 13:51:42,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-23 13:51:42,059 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 33 [2018-07-23 13:51:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,060 INFO L225 Difference]: With dead ends: 37 [2018-07-23 13:51:42,060 INFO L226 Difference]: Without dead ends: 36 [2018-07-23 13:51:42,061 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 13:51:42,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-07-23 13:51:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-07-23 13:51:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-07-23 13:51:42,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2018-07-23 13:51:42,077 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 33 [2018-07-23 13:51:42,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,078 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2018-07-23 13:51:42,078 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-23 13:51:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2018-07-23 13:51:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 13:51:42,079 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,079 INFO L357 BasicCegarLoop]: trace histogram [17, 16, 1, 1] [2018-07-23 13:51:42,079 INFO L414 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,081 INFO L82 PathProgramCache]: Analyzing trace with hash 886521088, now seen corresponding path program 16 times [2018-07-23 13:51:42,081 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-07-23 13:51:42,159 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,160 INFO L185 omatonBuilderFactory]: Interpolants [1568#(<= (+ main_offset 1008) main_length), 1569#(<= (+ main_offset 1004) main_length), 1570#(<= (+ main_offset 1000) main_length), 1571#(<= (+ main_offset 996) main_length), 1572#(<= (+ main_offset 992) main_length), 1573#(<= (+ main_offset 988) main_length), 1574#(<= (+ main_offset 984) main_length), 1556#true, 1557#false, 1558#(<= (+ main_offset 1048) main_length), 1559#(<= (+ main_offset 1044) main_length), 1560#(<= (+ main_offset 1040) main_length), 1561#(<= (+ main_offset 1036) main_length), 1562#(<= (+ main_offset 1032) main_length), 1563#(<= (+ main_offset 1028) main_length), 1564#(<= (+ main_offset 1024) main_length), 1565#(<= (+ main_offset 1020) main_length), 1566#(<= (+ main_offset 1016) main_length), 1567#(<= (+ main_offset 1012) main_length)] [2018-07-23 13:51:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-07-23 13:51:42,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-07-23 13:51:42,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2018-07-23 13:51:42,162 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 19 states. [2018-07-23 13:51:42,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,192 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-07-23 13:51:42,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-23 13:51:42,193 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 35 [2018-07-23 13:51:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,193 INFO L225 Difference]: With dead ends: 39 [2018-07-23 13:51:42,193 INFO L226 Difference]: Without dead ends: 38 [2018-07-23 13:51:42,194 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 13:51:42,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-07-23 13:51:42,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-07-23 13:51:42,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-07-23 13:51:42,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-07-23 13:51:42,201 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 35 [2018-07-23 13:51:42,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,201 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-07-23 13:51:42,201 INFO L472 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-07-23 13:51:42,202 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-07-23 13:51:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-07-23 13:51:42,202 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,204 INFO L357 BasicCegarLoop]: trace histogram [18, 17, 1, 1] [2018-07-23 13:51:42,204 INFO L414 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1543242050, now seen corresponding path program 17 times [2018-07-23 13:51:42,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,294 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,294 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-07-23 13:51:42,294 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,295 INFO L185 omatonBuilderFactory]: Interpolants [1729#true, 1730#false, 1731#(<= (+ main_offset 1048) main_length), 1732#(<= (+ main_offset 1044) main_length), 1733#(<= (+ main_offset 1040) main_length), 1734#(<= (+ main_offset 1036) main_length), 1735#(<= (+ main_offset 1032) main_length), 1736#(<= (+ main_offset 1028) main_length), 1737#(<= (+ main_offset 1024) main_length), 1738#(<= (+ main_offset 1020) main_length), 1739#(<= (+ main_offset 1016) main_length), 1740#(<= (+ main_offset 1012) main_length), 1741#(<= (+ main_offset 1008) main_length), 1742#(<= (+ main_offset 1004) main_length), 1743#(<= (+ main_offset 1000) main_length), 1744#(<= (+ main_offset 996) main_length), 1745#(<= (+ main_offset 992) main_length), 1746#(<= (+ main_offset 988) main_length), 1747#(<= (+ main_offset 984) main_length), 1748#(<= (+ main_offset 980) main_length)] [2018-07-23 13:51:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,296 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-23 13:51:42,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-23 13:51:42,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2018-07-23 13:51:42,297 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 20 states. [2018-07-23 13:51:42,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,327 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2018-07-23 13:51:42,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-07-23 13:51:42,327 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 37 [2018-07-23 13:51:42,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,328 INFO L225 Difference]: With dead ends: 41 [2018-07-23 13:51:42,329 INFO L226 Difference]: Without dead ends: 40 [2018-07-23 13:51:42,329 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 13:51:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-07-23 13:51:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-07-23 13:51:42,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-07-23 13:51:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-07-23 13:51:42,338 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 37 [2018-07-23 13:51:42,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,339 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2018-07-23 13:51:42,339 INFO L472 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-07-23 13:51:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-07-23 13:51:42,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-23 13:51:42,340 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,340 INFO L357 BasicCegarLoop]: trace histogram [19, 18, 1, 1] [2018-07-23 13:51:42,340 INFO L414 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1291894020, now seen corresponding path program 18 times [2018-07-23 13:51:42,340 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,456 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,457 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-07-23 13:51:42,457 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,458 INFO L185 omatonBuilderFactory]: Interpolants [1920#(<= (+ main_offset 1020) main_length), 1921#(<= (+ main_offset 1016) main_length), 1922#(<= (+ main_offset 1012) main_length), 1923#(<= (+ main_offset 1008) main_length), 1924#(<= (+ main_offset 1004) main_length), 1925#(<= (+ main_offset 1000) main_length), 1926#(<= (+ main_offset 996) main_length), 1927#(<= (+ main_offset 992) main_length), 1928#(<= (+ main_offset 988) main_length), 1929#(<= (+ main_offset 984) main_length), 1930#(<= (+ main_offset 980) main_length), 1931#(<= (+ main_offset 976) main_length), 1911#true, 1912#false, 1913#(<= (+ main_offset 1048) main_length), 1914#(<= (+ main_offset 1044) main_length), 1915#(<= (+ main_offset 1040) main_length), 1916#(<= (+ main_offset 1036) main_length), 1917#(<= (+ main_offset 1032) main_length), 1918#(<= (+ main_offset 1028) main_length), 1919#(<= (+ main_offset 1024) main_length)] [2018-07-23 13:51:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,460 INFO L450 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-07-23 13:51:42,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-07-23 13:51:42,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2018-07-23 13:51:42,462 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 21 states. [2018-07-23 13:51:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,493 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2018-07-23 13:51:42,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 13:51:42,493 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 39 [2018-07-23 13:51:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,494 INFO L225 Difference]: With dead ends: 43 [2018-07-23 13:51:42,495 INFO L226 Difference]: Without dead ends: 42 [2018-07-23 13:51:42,497 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 13:51:42,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-07-23 13:51:42,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-07-23 13:51:42,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-07-23 13:51:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-07-23 13:51:42,504 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 39 [2018-07-23 13:51:42,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,505 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-07-23 13:51:42,505 INFO L472 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-07-23 13:51:42,505 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-07-23 13:51:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-07-23 13:51:42,506 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,506 INFO L357 BasicCegarLoop]: trace histogram [20, 19, 1, 1] [2018-07-23 13:51:42,506 INFO L414 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash 264605766, now seen corresponding path program 19 times [2018-07-23 13:51:42,507 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,625 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,625 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-07-23 13:51:42,625 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,626 INFO L185 omatonBuilderFactory]: Interpolants [2112#(<= (+ main_offset 1016) main_length), 2113#(<= (+ main_offset 1012) main_length), 2114#(<= (+ main_offset 1008) main_length), 2115#(<= (+ main_offset 1004) main_length), 2116#(<= (+ main_offset 1000) main_length), 2117#(<= (+ main_offset 996) main_length), 2118#(<= (+ main_offset 992) main_length), 2119#(<= (+ main_offset 988) main_length), 2120#(<= (+ main_offset 984) main_length), 2121#(<= (+ main_offset 980) main_length), 2122#(<= (+ main_offset 976) main_length), 2123#(<= (+ main_offset 972) main_length), 2102#true, 2103#false, 2104#(<= (+ main_offset 1048) main_length), 2105#(<= (+ main_offset 1044) main_length), 2106#(<= (+ main_offset 1040) main_length), 2107#(<= (+ main_offset 1036) main_length), 2108#(<= (+ main_offset 1032) main_length), 2109#(<= (+ main_offset 1028) main_length), 2110#(<= (+ main_offset 1024) main_length), 2111#(<= (+ main_offset 1020) main_length)] [2018-07-23 13:51:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,627 INFO L450 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-07-23 13:51:42,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-07-23 13:51:42,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2018-07-23 13:51:42,632 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 22 states. [2018-07-23 13:51:42,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,665 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-07-23 13:51:42,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-07-23 13:51:42,666 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 41 [2018-07-23 13:51:42,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,667 INFO L225 Difference]: With dead ends: 45 [2018-07-23 13:51:42,667 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 13:51:42,667 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 13:51:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 13:51:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 13:51:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 13:51:42,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-07-23 13:51:42,673 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 44 transitions. Word has length 41 [2018-07-23 13:51:42,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,673 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 44 transitions. [2018-07-23 13:51:42,674 INFO L472 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-07-23 13:51:42,674 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-07-23 13:51:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-23 13:51:42,674 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,675 INFO L357 BasicCegarLoop]: trace histogram [21, 20, 1, 1] [2018-07-23 13:51:42,675 INFO L414 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,675 INFO L82 PathProgramCache]: Analyzing trace with hash 883071752, now seen corresponding path program 20 times [2018-07-23 13:51:42,675 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,805 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,805 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-07-23 13:51:42,806 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,806 INFO L185 omatonBuilderFactory]: Interpolants [2304#(<= (+ main_offset 1048) main_length), 2305#(<= (+ main_offset 1044) main_length), 2306#(<= (+ main_offset 1040) main_length), 2307#(<= (+ main_offset 1036) main_length), 2308#(<= (+ main_offset 1032) main_length), 2309#(<= (+ main_offset 1028) main_length), 2310#(<= (+ main_offset 1024) main_length), 2311#(<= (+ main_offset 1020) main_length), 2312#(<= (+ main_offset 1016) main_length), 2313#(<= (+ main_offset 1012) main_length), 2314#(<= (+ main_offset 1008) main_length), 2315#(<= (+ main_offset 1004) main_length), 2316#(<= (+ main_offset 1000) main_length), 2317#(<= (+ main_offset 996) main_length), 2318#(<= (+ main_offset 992) main_length), 2319#(<= (+ main_offset 988) main_length), 2320#(<= (+ main_offset 984) main_length), 2321#(<= (+ main_offset 980) main_length), 2322#(<= (+ main_offset 976) main_length), 2323#(<= (+ main_offset 972) main_length), 2324#(<= (+ main_offset 968) main_length), 2302#true, 2303#false] [2018-07-23 13:51:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,809 INFO L450 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-07-23 13:51:42,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-07-23 13:51:42,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2018-07-23 13:51:42,810 INFO L87 Difference]: Start difference. First operand 44 states and 44 transitions. Second operand 23 states. [2018-07-23 13:51:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:42,842 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-07-23 13:51:42,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-23 13:51:42,843 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 43 [2018-07-23 13:51:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:42,843 INFO L225 Difference]: With dead ends: 47 [2018-07-23 13:51:42,843 INFO L226 Difference]: Without dead ends: 46 [2018-07-23 13:51:42,844 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 13:51:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-07-23 13:51:42,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-07-23 13:51:42,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-07-23 13:51:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-07-23 13:51:42,856 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2018-07-23 13:51:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:42,856 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-07-23 13:51:42,856 INFO L472 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-07-23 13:51:42,857 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-07-23 13:51:42,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-07-23 13:51:42,857 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:42,858 INFO L357 BasicCegarLoop]: trace histogram [22, 21, 1, 1] [2018-07-23 13:51:42,858 INFO L414 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:42,858 INFO L82 PathProgramCache]: Analyzing trace with hash -1771569846, now seen corresponding path program 21 times [2018-07-23 13:51:42,858 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:42,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:42,981 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,981 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:42,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-07-23 13:51:42,982 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:42,982 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 13:51:42,982 INFO L185 omatonBuilderFactory]: Interpolants [2528#(<= (+ main_offset 988) main_length), 2529#(<= (+ main_offset 984) main_length), 2530#(<= (+ main_offset 980) main_length), 2531#(<= (+ main_offset 976) main_length), 2532#(<= (+ main_offset 972) main_length), 2533#(<= (+ main_offset 968) main_length), 2534#(<= (+ main_offset 964) main_length), 2511#true, 2512#false, 2513#(<= (+ main_offset 1048) main_length), 2514#(<= (+ main_offset 1044) main_length), 2515#(<= (+ main_offset 1040) main_length), 2516#(<= (+ main_offset 1036) main_length), 2517#(<= (+ main_offset 1032) main_length), 2518#(<= (+ main_offset 1028) main_length), 2519#(<= (+ main_offset 1024) main_length), 2520#(<= (+ main_offset 1020) main_length), 2521#(<= (+ main_offset 1016) main_length), 2522#(<= (+ main_offset 1012) main_length), 2523#(<= (+ main_offset 1008) main_length), 2524#(<= (+ main_offset 1004) main_length), 2525#(<= (+ main_offset 1000) main_length), 2526#(<= (+ main_offset 996) main_length), 2527#(<= (+ main_offset 992) main_length)] [2018-07-23 13:51:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:42,983 INFO L450 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-07-23 13:51:42,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-07-23 13:51:42,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2018-07-23 13:51:42,984 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 24 states. [2018-07-23 13:51:43,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,019 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-07-23 13:51:43,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-07-23 13:51:43,021 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 45 [2018-07-23 13:51:43,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,022 INFO L225 Difference]: With dead ends: 49 [2018-07-23 13:51:43,022 INFO L226 Difference]: Without dead ends: 48 [2018-07-23 13:51:43,023 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 13:51:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-23 13:51:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-23 13:51:43,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-23 13:51:43,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-07-23 13:51:43,028 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2018-07-23 13:51:43,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,028 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-07-23 13:51:43,028 INFO L472 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-07-23 13:51:43,029 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-07-23 13:51:43,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-07-23 13:51:43,029 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,029 INFO L357 BasicCegarLoop]: trace histogram [23, 22, 1, 1] [2018-07-23 13:51:43,030 INFO L414 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1671571700, now seen corresponding path program 22 times [2018-07-23 13:51:43,030 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,150 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,151 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,151 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-07-23 13:51:43,151 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,152 INFO L185 omatonBuilderFactory]: Interpolants [2752#(<= (+ main_offset 964) main_length), 2753#(<= (+ main_offset 960) main_length), 2729#true, 2730#false, 2731#(<= (+ main_offset 1048) main_length), 2732#(<= (+ main_offset 1044) main_length), 2733#(<= (+ main_offset 1040) main_length), 2734#(<= (+ main_offset 1036) main_length), 2735#(<= (+ main_offset 1032) main_length), 2736#(<= (+ main_offset 1028) main_length), 2737#(<= (+ main_offset 1024) main_length), 2738#(<= (+ main_offset 1020) main_length), 2739#(<= (+ main_offset 1016) main_length), 2740#(<= (+ main_offset 1012) main_length), 2741#(<= (+ main_offset 1008) main_length), 2742#(<= (+ main_offset 1004) main_length), 2743#(<= (+ main_offset 1000) main_length), 2744#(<= (+ main_offset 996) main_length), 2745#(<= (+ main_offset 992) main_length), 2746#(<= (+ main_offset 988) main_length), 2747#(<= (+ main_offset 984) main_length), 2748#(<= (+ main_offset 980) main_length), 2749#(<= (+ main_offset 976) main_length), 2750#(<= (+ main_offset 972) main_length), 2751#(<= (+ main_offset 968) main_length)] [2018-07-23 13:51:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,153 INFO L450 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-07-23 13:51:43,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-07-23 13:51:43,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2018-07-23 13:51:43,156 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 25 states. [2018-07-23 13:51:43,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,186 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-07-23 13:51:43,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-07-23 13:51:43,186 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 47 [2018-07-23 13:51:43,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,187 INFO L225 Difference]: With dead ends: 51 [2018-07-23 13:51:43,187 INFO L226 Difference]: Without dead ends: 50 [2018-07-23 13:51:43,188 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 13:51:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-07-23 13:51:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-07-23 13:51:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-07-23 13:51:43,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-07-23 13:51:43,206 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2018-07-23 13:51:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,206 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-07-23 13:51:43,206 INFO L472 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-07-23 13:51:43,207 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-07-23 13:51:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-23 13:51:43,207 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,207 INFO L357 BasicCegarLoop]: trace histogram [24, 23, 1, 1] [2018-07-23 13:51:43,207 INFO L414 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,208 INFO L82 PathProgramCache]: Analyzing trace with hash -62633906, now seen corresponding path program 23 times [2018-07-23 13:51:43,208 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,337 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,337 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-07-23 13:51:43,337 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,338 INFO L185 omatonBuilderFactory]: Interpolants [2956#true, 2957#false, 2958#(<= (+ main_offset 1048) main_length), 2959#(<= (+ main_offset 1044) main_length), 2960#(<= (+ main_offset 1040) main_length), 2961#(<= (+ main_offset 1036) main_length), 2962#(<= (+ main_offset 1032) main_length), 2963#(<= (+ main_offset 1028) main_length), 2964#(<= (+ main_offset 1024) main_length), 2965#(<= (+ main_offset 1020) main_length), 2966#(<= (+ main_offset 1016) main_length), 2967#(<= (+ main_offset 1012) main_length), 2968#(<= (+ main_offset 1008) main_length), 2969#(<= (+ main_offset 1004) main_length), 2970#(<= (+ main_offset 1000) main_length), 2971#(<= (+ main_offset 996) main_length), 2972#(<= (+ main_offset 992) main_length), 2973#(<= (+ main_offset 988) main_length), 2974#(<= (+ main_offset 984) main_length), 2975#(<= (+ main_offset 980) main_length), 2976#(<= (+ main_offset 976) main_length), 2977#(<= (+ main_offset 972) main_length), 2978#(<= (+ main_offset 968) main_length), 2979#(<= (+ main_offset 964) main_length), 2980#(<= (+ main_offset 960) main_length), 2981#(<= (+ main_offset 956) main_length)] [2018-07-23 13:51:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,339 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-23 13:51:43,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-23 13:51:43,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2018-07-23 13:51:43,341 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 26 states. [2018-07-23 13:51:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,369 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-07-23 13:51:43,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-07-23 13:51:43,370 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 49 [2018-07-23 13:51:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,370 INFO L225 Difference]: With dead ends: 53 [2018-07-23 13:51:43,371 INFO L226 Difference]: Without dead ends: 52 [2018-07-23 13:51:43,371 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 13:51:43,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-07-23 13:51:43,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-07-23 13:51:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-07-23 13:51:43,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2018-07-23 13:51:43,380 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 49 [2018-07-23 13:51:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,381 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2018-07-23 13:51:43,381 INFO L472 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-07-23 13:51:43,381 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2018-07-23 13:51:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 13:51:43,381 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,382 INFO L357 BasicCegarLoop]: trace histogram [25, 24, 1, 1] [2018-07-23 13:51:43,382 INFO L414 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash -61640432, now seen corresponding path program 24 times [2018-07-23 13:51:43,382 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,517 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-07-23 13:51:43,517 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,518 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 13:51:43,518 INFO L185 omatonBuilderFactory]: Interpolants [3200#(<= (+ main_offset 1024) main_length), 3201#(<= (+ main_offset 1020) main_length), 3202#(<= (+ main_offset 1016) main_length), 3203#(<= (+ main_offset 1012) main_length), 3204#(<= (+ main_offset 1008) main_length), 3205#(<= (+ main_offset 1004) main_length), 3206#(<= (+ main_offset 1000) main_length), 3207#(<= (+ main_offset 996) main_length), 3208#(<= (+ main_offset 992) main_length), 3209#(<= (+ main_offset 988) main_length), 3210#(<= (+ main_offset 984) main_length), 3211#(<= (+ main_offset 980) main_length), 3212#(<= (+ main_offset 976) main_length), 3213#(<= (+ main_offset 972) main_length), 3214#(<= (+ main_offset 968) main_length), 3215#(<= (+ main_offset 964) main_length), 3216#(<= (+ main_offset 960) main_length), 3217#(<= (+ main_offset 956) main_length), 3218#(<= (+ main_offset 952) main_length), 3192#true, 3193#false, 3194#(<= (+ main_offset 1048) main_length), 3195#(<= (+ main_offset 1044) main_length), 3196#(<= (+ main_offset 1040) main_length), 3197#(<= (+ main_offset 1036) main_length), 3198#(<= (+ main_offset 1032) main_length), 3199#(<= (+ main_offset 1028) main_length)] [2018-07-23 13:51:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,519 INFO L450 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-07-23 13:51:43,520 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-07-23 13:51:43,520 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2018-07-23 13:51:43,520 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand 27 states. [2018-07-23 13:51:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,552 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2018-07-23 13:51:43,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-23 13:51:43,553 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 51 [2018-07-23 13:51:43,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,554 INFO L225 Difference]: With dead ends: 55 [2018-07-23 13:51:43,554 INFO L226 Difference]: Without dead ends: 54 [2018-07-23 13:51:43,555 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 13:51:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-07-23 13:51:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-07-23 13:51:43,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-07-23 13:51:43,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2018-07-23 13:51:43,560 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 51 [2018-07-23 13:51:43,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,560 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2018-07-23 13:51:43,560 INFO L472 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-07-23 13:51:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2018-07-23 13:51:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-07-23 13:51:43,561 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,561 INFO L357 BasicCegarLoop]: trace histogram [26, 25, 1, 1] [2018-07-23 13:51:43,562 INFO L414 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,562 INFO L82 PathProgramCache]: Analyzing trace with hash 893088082, now seen corresponding path program 25 times [2018-07-23 13:51:43,562 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,704 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,704 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2018-07-23 13:51:43,705 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,706 INFO L185 omatonBuilderFactory]: Interpolants [3456#(<= (+ main_offset 980) main_length), 3457#(<= (+ main_offset 976) main_length), 3458#(<= (+ main_offset 972) main_length), 3459#(<= (+ main_offset 968) main_length), 3460#(<= (+ main_offset 964) main_length), 3461#(<= (+ main_offset 960) main_length), 3462#(<= (+ main_offset 956) main_length), 3463#(<= (+ main_offset 952) main_length), 3464#(<= (+ main_offset 948) main_length), 3437#true, 3438#false, 3439#(<= (+ main_offset 1048) main_length), 3440#(<= (+ main_offset 1044) main_length), 3441#(<= (+ main_offset 1040) main_length), 3442#(<= (+ main_offset 1036) main_length), 3443#(<= (+ main_offset 1032) main_length), 3444#(<= (+ main_offset 1028) main_length), 3445#(<= (+ main_offset 1024) main_length), 3446#(<= (+ main_offset 1020) main_length), 3447#(<= (+ main_offset 1016) main_length), 3448#(<= (+ main_offset 1012) main_length), 3449#(<= (+ main_offset 1008) main_length), 3450#(<= (+ main_offset 1004) main_length), 3451#(<= (+ main_offset 1000) main_length), 3452#(<= (+ main_offset 996) main_length), 3453#(<= (+ main_offset 992) main_length), 3454#(<= (+ main_offset 988) main_length), 3455#(<= (+ main_offset 984) main_length)] [2018-07-23 13:51:43,706 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-07-23 13:51:43,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-07-23 13:51:43,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2018-07-23 13:51:43,709 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 28 states. [2018-07-23 13:51:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,737 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions. [2018-07-23 13:51:43,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-07-23 13:51:43,737 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 53 [2018-07-23 13:51:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,738 INFO L225 Difference]: With dead ends: 57 [2018-07-23 13:51:43,738 INFO L226 Difference]: Without dead ends: 56 [2018-07-23 13:51:43,739 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 13:51:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-07-23 13:51:43,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-07-23 13:51:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-07-23 13:51:43,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2018-07-23 13:51:43,751 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 53 [2018-07-23 13:51:43,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,751 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2018-07-23 13:51:43,751 INFO L472 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-07-23 13:51:43,751 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2018-07-23 13:51:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-07-23 13:51:43,752 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,752 INFO L357 BasicCegarLoop]: trace histogram [27, 26, 1, 1] [2018-07-23 13:51:43,754 INFO L414 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,754 INFO L82 PathProgramCache]: Analyzing trace with hash -735811308, now seen corresponding path program 26 times [2018-07-23 13:51:43,754 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,902 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:43,902 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-07-23 13:51:43,902 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:43,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,903 INFO L185 omatonBuilderFactory]: Interpolants [3712#(<= (+ main_offset 972) main_length), 3713#(<= (+ main_offset 968) main_length), 3714#(<= (+ main_offset 964) main_length), 3715#(<= (+ main_offset 960) main_length), 3716#(<= (+ main_offset 956) main_length), 3717#(<= (+ main_offset 952) main_length), 3718#(<= (+ main_offset 948) main_length), 3719#(<= (+ main_offset 944) main_length), 3691#true, 3692#false, 3693#(<= (+ main_offset 1048) main_length), 3694#(<= (+ main_offset 1044) main_length), 3695#(<= (+ main_offset 1040) main_length), 3696#(<= (+ main_offset 1036) main_length), 3697#(<= (+ main_offset 1032) main_length), 3698#(<= (+ main_offset 1028) main_length), 3699#(<= (+ main_offset 1024) main_length), 3700#(<= (+ main_offset 1020) main_length), 3701#(<= (+ main_offset 1016) main_length), 3702#(<= (+ main_offset 1012) main_length), 3703#(<= (+ main_offset 1008) main_length), 3704#(<= (+ main_offset 1004) main_length), 3705#(<= (+ main_offset 1000) main_length), 3706#(<= (+ main_offset 996) main_length), 3707#(<= (+ main_offset 992) main_length), 3708#(<= (+ main_offset 988) main_length), 3709#(<= (+ main_offset 984) main_length), 3710#(<= (+ main_offset 980) main_length), 3711#(<= (+ main_offset 976) main_length)] [2018-07-23 13:51:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:43,904 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-23 13:51:43,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-23 13:51:43,905 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:51:43,905 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand 29 states. [2018-07-23 13:51:43,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:43,981 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2018-07-23 13:51:43,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-07-23 13:51:43,981 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2018-07-23 13:51:43,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:43,982 INFO L225 Difference]: With dead ends: 59 [2018-07-23 13:51:43,982 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 13:51:43,983 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2018-07-23 13:51:43,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 13:51:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-07-23 13:51:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-07-23 13:51:43,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2018-07-23 13:51:43,986 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 55 [2018-07-23 13:51:43,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:43,987 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2018-07-23 13:51:43,987 INFO L472 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-07-23 13:51:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2018-07-23 13:51:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-23 13:51:43,988 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:43,988 INFO L357 BasicCegarLoop]: trace histogram [28, 27, 1, 1] [2018-07-23 13:51:43,988 INFO L414 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:43,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1554937942, now seen corresponding path program 27 times [2018-07-23 13:51:43,988 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,123 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,123 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2018-07-23 13:51:44,123 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,124 INFO L185 omatonBuilderFactory]: Interpolants [3968#(<= (+ main_offset 1000) main_length), 3969#(<= (+ main_offset 996) main_length), 3970#(<= (+ main_offset 992) main_length), 3971#(<= (+ main_offset 988) main_length), 3972#(<= (+ main_offset 984) main_length), 3973#(<= (+ main_offset 980) main_length), 3974#(<= (+ main_offset 976) main_length), 3975#(<= (+ main_offset 972) main_length), 3976#(<= (+ main_offset 968) main_length), 3977#(<= (+ main_offset 964) main_length), 3978#(<= (+ main_offset 960) main_length), 3979#(<= (+ main_offset 956) main_length), 3980#(<= (+ main_offset 952) main_length), 3981#(<= (+ main_offset 948) main_length), 3982#(<= (+ main_offset 944) main_length), 3983#(<= (+ main_offset 940) main_length), 3954#true, 3955#false, 3956#(<= (+ main_offset 1048) main_length), 3957#(<= (+ main_offset 1044) main_length), 3958#(<= (+ main_offset 1040) main_length), 3959#(<= (+ main_offset 1036) main_length), 3960#(<= (+ main_offset 1032) main_length), 3961#(<= (+ main_offset 1028) main_length), 3962#(<= (+ main_offset 1024) main_length), 3963#(<= (+ main_offset 1020) main_length), 3964#(<= (+ main_offset 1016) main_length), 3965#(<= (+ main_offset 1012) main_length), 3966#(<= (+ main_offset 1008) main_length), 3967#(<= (+ main_offset 1004) main_length)] [2018-07-23 13:51:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,125 INFO L450 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-07-23 13:51:44,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-07-23 13:51:44,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2018-07-23 13:51:44,126 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand 30 states. [2018-07-23 13:51:44,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,157 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2018-07-23 13:51:44,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-07-23 13:51:44,157 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 57 [2018-07-23 13:51:44,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,158 INFO L225 Difference]: With dead ends: 61 [2018-07-23 13:51:44,158 INFO L226 Difference]: Without dead ends: 60 [2018-07-23 13:51:44,159 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 13:51:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-07-23 13:51:44,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-07-23 13:51:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-07-23 13:51:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-07-23 13:51:44,163 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 57 [2018-07-23 13:51:44,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,163 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-07-23 13:51:44,163 INFO L472 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-07-23 13:51:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-07-23 13:51:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 13:51:44,164 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,164 INFO L357 BasicCegarLoop]: trace histogram [29, 28, 1, 1] [2018-07-23 13:51:44,164 INFO L414 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,164 INFO L82 PathProgramCache]: Analyzing trace with hash -353255656, now seen corresponding path program 28 times [2018-07-23 13:51:44,164 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,309 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,310 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2018-07-23 13:51:44,310 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,310 INFO L185 omatonBuilderFactory]: Interpolants [4226#true, 4227#false, 4228#(<= (+ main_offset 1048) main_length), 4229#(<= (+ main_offset 1044) main_length), 4230#(<= (+ main_offset 1040) main_length), 4231#(<= (+ main_offset 1036) main_length), 4232#(<= (+ main_offset 1032) main_length), 4233#(<= (+ main_offset 1028) main_length), 4234#(<= (+ main_offset 1024) main_length), 4235#(<= (+ main_offset 1020) main_length), 4236#(<= (+ main_offset 1016) main_length), 4237#(<= (+ main_offset 1012) main_length), 4238#(<= (+ main_offset 1008) main_length), 4239#(<= (+ main_offset 1004) main_length), 4240#(<= (+ main_offset 1000) main_length), 4241#(<= (+ main_offset 996) main_length), 4242#(<= (+ main_offset 992) main_length), 4243#(<= (+ main_offset 988) main_length), 4244#(<= (+ main_offset 984) main_length), 4245#(<= (+ main_offset 980) main_length), 4246#(<= (+ main_offset 976) main_length), 4247#(<= (+ main_offset 972) main_length), 4248#(<= (+ main_offset 968) main_length), 4249#(<= (+ main_offset 964) main_length), 4250#(<= (+ main_offset 960) main_length), 4251#(<= (+ main_offset 956) main_length), 4252#(<= (+ main_offset 952) main_length), 4253#(<= (+ main_offset 948) main_length), 4254#(<= (+ main_offset 944) main_length), 4255#(<= (+ main_offset 940) main_length), 4256#(<= (+ main_offset 936) main_length)] [2018-07-23 13:51:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,311 INFO L450 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-07-23 13:51:44,312 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-07-23 13:51:44,312 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:51:44,312 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 31 states. [2018-07-23 13:51:44,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,348 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2018-07-23 13:51:44,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-23 13:51:44,348 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 59 [2018-07-23 13:51:44,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,349 INFO L225 Difference]: With dead ends: 63 [2018-07-23 13:51:44,349 INFO L226 Difference]: Without dead ends: 62 [2018-07-23 13:51:44,350 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2018-07-23 13:51:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-07-23 13:51:44,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-07-23 13:51:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-07-23 13:51:44,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2018-07-23 13:51:44,355 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 59 [2018-07-23 13:51:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,355 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2018-07-23 13:51:44,355 INFO L472 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-07-23 13:51:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2018-07-23 13:51:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 13:51:44,356 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,356 INFO L357 BasicCegarLoop]: trace histogram [30, 29, 1, 1] [2018-07-23 13:51:44,356 INFO L414 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,356 INFO L82 PathProgramCache]: Analyzing trace with hash -176267942, now seen corresponding path program 29 times [2018-07-23 13:51:44,356 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,503 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,503 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-07-23 13:51:44,503 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,504 INFO L185 omatonBuilderFactory]: Interpolants [4507#true, 4508#false, 4509#(<= (+ main_offset 1048) main_length), 4510#(<= (+ main_offset 1044) main_length), 4511#(<= (+ main_offset 1040) main_length), 4512#(<= (+ main_offset 1036) main_length), 4513#(<= (+ main_offset 1032) main_length), 4514#(<= (+ main_offset 1028) main_length), 4515#(<= (+ main_offset 1024) main_length), 4516#(<= (+ main_offset 1020) main_length), 4517#(<= (+ main_offset 1016) main_length), 4518#(<= (+ main_offset 1012) main_length), 4519#(<= (+ main_offset 1008) main_length), 4520#(<= (+ main_offset 1004) main_length), 4521#(<= (+ main_offset 1000) main_length), 4522#(<= (+ main_offset 996) main_length), 4523#(<= (+ main_offset 992) main_length), 4524#(<= (+ main_offset 988) main_length), 4525#(<= (+ main_offset 984) main_length), 4526#(<= (+ main_offset 980) main_length), 4527#(<= (+ main_offset 976) main_length), 4528#(<= (+ main_offset 972) main_length), 4529#(<= (+ main_offset 968) main_length), 4530#(<= (+ main_offset 964) main_length), 4531#(<= (+ main_offset 960) main_length), 4532#(<= (+ main_offset 956) main_length), 4533#(<= (+ main_offset 952) main_length), 4534#(<= (+ main_offset 948) main_length), 4535#(<= (+ main_offset 944) main_length), 4536#(<= (+ main_offset 940) main_length), 4537#(<= (+ main_offset 936) main_length), 4538#(<= (+ main_offset 932) main_length)] [2018-07-23 13:51:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,505 INFO L450 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-07-23 13:51:44,505 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-07-23 13:51:44,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2018-07-23 13:51:44,506 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 32 states. [2018-07-23 13:51:44,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,538 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2018-07-23 13:51:44,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-07-23 13:51:44,539 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 61 [2018-07-23 13:51:44,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,539 INFO L225 Difference]: With dead ends: 65 [2018-07-23 13:51:44,539 INFO L226 Difference]: Without dead ends: 64 [2018-07-23 13:51:44,540 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 13:51:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-07-23 13:51:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-07-23 13:51:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-07-23 13:51:44,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2018-07-23 13:51:44,545 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 61 [2018-07-23 13:51:44,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,545 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2018-07-23 13:51:44,545 INFO L472 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-07-23 13:51:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2018-07-23 13:51:44,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-23 13:51:44,546 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,546 INFO L357 BasicCegarLoop]: trace histogram [31, 30, 1, 1] [2018-07-23 13:51:44,546 INFO L414 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1889766628, now seen corresponding path program 30 times [2018-07-23 13:51:44,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,705 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,705 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,705 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2018-07-23 13:51:44,706 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,706 INFO L185 omatonBuilderFactory]: Interpolants [4800#(<= (+ main_offset 1044) main_length), 4801#(<= (+ main_offset 1040) main_length), 4802#(<= (+ main_offset 1036) main_length), 4803#(<= (+ main_offset 1032) main_length), 4804#(<= (+ main_offset 1028) main_length), 4805#(<= (+ main_offset 1024) main_length), 4806#(<= (+ main_offset 1020) main_length), 4807#(<= (+ main_offset 1016) main_length), 4808#(<= (+ main_offset 1012) main_length), 4809#(<= (+ main_offset 1008) main_length), 4810#(<= (+ main_offset 1004) main_length), 4811#(<= (+ main_offset 1000) main_length), 4812#(<= (+ main_offset 996) main_length), 4813#(<= (+ main_offset 992) main_length), 4814#(<= (+ main_offset 988) main_length), 4815#(<= (+ main_offset 984) main_length), 4816#(<= (+ main_offset 980) main_length), 4817#(<= (+ main_offset 976) main_length), 4818#(<= (+ main_offset 972) main_length), 4819#(<= (+ main_offset 968) main_length), 4820#(<= (+ main_offset 964) main_length), 4821#(<= (+ main_offset 960) main_length), 4822#(<= (+ main_offset 956) main_length), 4823#(<= (+ main_offset 952) main_length), 4824#(<= (+ main_offset 948) main_length), 4825#(<= (+ main_offset 944) main_length), 4826#(<= (+ main_offset 940) main_length), 4827#(<= (+ main_offset 936) main_length), 4828#(<= (+ main_offset 932) main_length), 4829#(<= (+ main_offset 928) main_length), 4797#true, 4798#false, 4799#(<= (+ main_offset 1048) main_length)] [2018-07-23 13:51:44,707 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-07-23 13:51:44,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-07-23 13:51:44,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:51:44,708 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 33 states. [2018-07-23 13:51:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,742 INFO L93 Difference]: Finished difference Result 67 states and 67 transitions. [2018-07-23 13:51:44,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-07-23 13:51:44,742 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 63 [2018-07-23 13:51:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,743 INFO L225 Difference]: With dead ends: 67 [2018-07-23 13:51:44,743 INFO L226 Difference]: Without dead ends: 66 [2018-07-23 13:51:44,744 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 13:51:44,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-07-23 13:51:44,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-07-23 13:51:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-07-23 13:51:44,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-07-23 13:51:44,748 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 63 [2018-07-23 13:51:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,748 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-07-23 13:51:44,748 INFO L472 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-07-23 13:51:44,748 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-07-23 13:51:44,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-07-23 13:51:44,749 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,749 INFO L357 BasicCegarLoop]: trace histogram [32, 31, 1, 1] [2018-07-23 13:51:44,749 INFO L414 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,749 INFO L82 PathProgramCache]: Analyzing trace with hash 705437790, now seen corresponding path program 31 times [2018-07-23 13:51:44,749 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,927 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:44,927 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-07-23 13:51:44,928 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,928 INFO L185 omatonBuilderFactory]: Interpolants [5120#(<= (+ main_offset 960) main_length), 5121#(<= (+ main_offset 956) main_length), 5122#(<= (+ main_offset 952) main_length), 5123#(<= (+ main_offset 948) main_length), 5124#(<= (+ main_offset 944) main_length), 5125#(<= (+ main_offset 940) main_length), 5126#(<= (+ main_offset 936) main_length), 5127#(<= (+ main_offset 932) main_length), 5128#(<= (+ main_offset 928) main_length), 5129#(<= (+ main_offset 924) main_length), 5096#true, 5097#false, 5098#(<= (+ main_offset 1048) main_length), 5099#(<= (+ main_offset 1044) main_length), 5100#(<= (+ main_offset 1040) main_length), 5101#(<= (+ main_offset 1036) main_length), 5102#(<= (+ main_offset 1032) main_length), 5103#(<= (+ main_offset 1028) main_length), 5104#(<= (+ main_offset 1024) main_length), 5105#(<= (+ main_offset 1020) main_length), 5106#(<= (+ main_offset 1016) main_length), 5107#(<= (+ main_offset 1012) main_length), 5108#(<= (+ main_offset 1008) main_length), 5109#(<= (+ main_offset 1004) main_length), 5110#(<= (+ main_offset 1000) main_length), 5111#(<= (+ main_offset 996) main_length), 5112#(<= (+ main_offset 992) main_length), 5113#(<= (+ main_offset 988) main_length), 5114#(<= (+ main_offset 984) main_length), 5115#(<= (+ main_offset 980) main_length), 5116#(<= (+ main_offset 976) main_length), 5117#(<= (+ main_offset 972) main_length), 5118#(<= (+ main_offset 968) main_length), 5119#(<= (+ main_offset 964) main_length)] [2018-07-23 13:51:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:44,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-07-23 13:51:44,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-07-23 13:51:44,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:51:44,931 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 34 states. [2018-07-23 13:51:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:44,962 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2018-07-23 13:51:44,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-23 13:51:44,962 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 65 [2018-07-23 13:51:44,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:44,963 INFO L225 Difference]: With dead ends: 69 [2018-07-23 13:51:44,963 INFO L226 Difference]: Without dead ends: 68 [2018-07-23 13:51:44,964 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2018-07-23 13:51:44,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-07-23 13:51:44,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-07-23 13:51:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-07-23 13:51:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2018-07-23 13:51:44,970 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 65 [2018-07-23 13:51:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:44,970 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2018-07-23 13:51:44,970 INFO L472 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-07-23 13:51:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2018-07-23 13:51:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-23 13:51:44,972 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:44,972 INFO L357 BasicCegarLoop]: trace histogram [33, 32, 1, 1] [2018-07-23 13:51:44,972 INFO L414 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash -679115488, now seen corresponding path program 32 times [2018-07-23 13:51:44,972 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,146 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,146 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2018-07-23 13:51:45,146 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,147 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 13:51:45,147 INFO L185 omatonBuilderFactory]: Interpolants [5404#true, 5405#false, 5406#(<= (+ main_offset 1048) main_length), 5407#(<= (+ main_offset 1044) main_length), 5408#(<= (+ main_offset 1040) main_length), 5409#(<= (+ main_offset 1036) main_length), 5410#(<= (+ main_offset 1032) main_length), 5411#(<= (+ main_offset 1028) main_length), 5412#(<= (+ main_offset 1024) main_length), 5413#(<= (+ main_offset 1020) main_length), 5414#(<= (+ main_offset 1016) main_length), 5415#(<= (+ main_offset 1012) main_length), 5416#(<= (+ main_offset 1008) main_length), 5417#(<= (+ main_offset 1004) main_length), 5418#(<= (+ main_offset 1000) main_length), 5419#(<= (+ main_offset 996) main_length), 5420#(<= (+ main_offset 992) main_length), 5421#(<= (+ main_offset 988) main_length), 5422#(<= (+ main_offset 984) main_length), 5423#(<= (+ main_offset 980) main_length), 5424#(<= (+ main_offset 976) main_length), 5425#(<= (+ main_offset 972) main_length), 5426#(<= (+ main_offset 968) main_length), 5427#(<= (+ main_offset 964) main_length), 5428#(<= (+ main_offset 960) main_length), 5429#(<= (+ main_offset 956) main_length), 5430#(<= (+ main_offset 952) main_length), 5431#(<= (+ main_offset 948) main_length), 5432#(<= (+ main_offset 944) main_length), 5433#(<= (+ main_offset 940) main_length), 5434#(<= (+ main_offset 936) main_length), 5435#(<= (+ main_offset 932) main_length), 5436#(<= (+ main_offset 928) main_length), 5437#(<= (+ main_offset 924) main_length), 5438#(<= (+ main_offset 920) main_length)] [2018-07-23 13:51:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 1056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,148 INFO L450 AbstractCegarLoop]: Interpolant automaton has 35 states [2018-07-23 13:51:45,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2018-07-23 13:51:45,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2018-07-23 13:51:45,150 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand 35 states. [2018-07-23 13:51:45,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,186 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2018-07-23 13:51:45,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-07-23 13:51:45,187 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 67 [2018-07-23 13:51:45,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,187 INFO L225 Difference]: With dead ends: 71 [2018-07-23 13:51:45,188 INFO L226 Difference]: Without dead ends: 70 [2018-07-23 13:51:45,189 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 13:51:45,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-07-23 13:51:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-07-23 13:51:45,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-07-23 13:51:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2018-07-23 13:51:45,193 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 67 [2018-07-23 13:51:45,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,193 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2018-07-23 13:51:45,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 35 states. [2018-07-23 13:51:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2018-07-23 13:51:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 13:51:45,194 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,194 INFO L357 BasicCegarLoop]: trace histogram [34, 33, 1, 1] [2018-07-23 13:51:45,195 INFO L414 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash 205046114, now seen corresponding path program 33 times [2018-07-23 13:51:45,195 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 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 [34] total 34 [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 [5721#true, 5722#false, 5723#(<= (+ main_offset 1048) main_length), 5724#(<= (+ main_offset 1044) main_length), 5725#(<= (+ main_offset 1040) main_length), 5726#(<= (+ main_offset 1036) main_length), 5727#(<= (+ main_offset 1032) main_length), 5728#(<= (+ main_offset 1028) main_length), 5729#(<= (+ main_offset 1024) main_length), 5730#(<= (+ main_offset 1020) main_length), 5731#(<= (+ main_offset 1016) main_length), 5732#(<= (+ main_offset 1012) main_length), 5733#(<= (+ main_offset 1008) main_length), 5734#(<= (+ main_offset 1004) main_length), 5735#(<= (+ main_offset 1000) main_length), 5736#(<= (+ main_offset 996) main_length), 5737#(<= (+ main_offset 992) main_length), 5738#(<= (+ main_offset 988) main_length), 5739#(<= (+ main_offset 984) main_length), 5740#(<= (+ main_offset 980) main_length), 5741#(<= (+ main_offset 976) main_length), 5742#(<= (+ main_offset 972) main_length), 5743#(<= (+ main_offset 968) main_length), 5744#(<= (+ main_offset 964) main_length), 5745#(<= (+ main_offset 960) main_length), 5746#(<= (+ main_offset 956) main_length), 5747#(<= (+ main_offset 952) main_length), 5748#(<= (+ main_offset 948) main_length), 5749#(<= (+ main_offset 944) main_length), 5750#(<= (+ main_offset 940) main_length), 5751#(<= (+ main_offset 936) main_length), 5752#(<= (+ main_offset 932) main_length), 5753#(<= (+ main_offset 928) main_length), 5754#(<= (+ main_offset 924) main_length), 5755#(<= (+ main_offset 920) main_length), 5756#(<= (+ main_offset 916) main_length)] [2018-07-23 13:51:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,377 INFO L450 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-07-23 13:51:45,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-07-23 13:51:45,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:51:45,380 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand 36 states. [2018-07-23 13:51:45,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,420 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2018-07-23 13:51:45,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-07-23 13:51:45,420 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 69 [2018-07-23 13:51:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,421 INFO L225 Difference]: With dead ends: 73 [2018-07-23 13:51:45,421 INFO L226 Difference]: Without dead ends: 72 [2018-07-23 13:51:45,422 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2018-07-23 13:51:45,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-07-23 13:51:45,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-07-23 13:51:45,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-07-23 13:51:45,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2018-07-23 13:51:45,425 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 69 [2018-07-23 13:51:45,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,426 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2018-07-23 13:51:45,426 INFO L472 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-07-23 13:51:45,426 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2018-07-23 13:51:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-07-23 13:51:45,427 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,427 INFO L357 BasicCegarLoop]: trace histogram [35, 34, 1, 1] [2018-07-23 13:51:45,427 INFO L414 AbstractCegarLoop]: === Iteration 35 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,427 INFO L82 PathProgramCache]: Analyzing trace with hash -519178972, now seen corresponding path program 34 times [2018-07-23 13:51:45,427 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,617 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,617 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2018-07-23 13:51:45,617 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,618 INFO L185 omatonBuilderFactory]: Interpolants [6080#(<= (+ main_offset 924) main_length), 6081#(<= (+ main_offset 920) main_length), 6082#(<= (+ main_offset 916) main_length), 6083#(<= (+ main_offset 912) main_length), 6047#true, 6048#false, 6049#(<= (+ main_offset 1048) main_length), 6050#(<= (+ main_offset 1044) main_length), 6051#(<= (+ main_offset 1040) main_length), 6052#(<= (+ main_offset 1036) main_length), 6053#(<= (+ main_offset 1032) main_length), 6054#(<= (+ main_offset 1028) main_length), 6055#(<= (+ main_offset 1024) main_length), 6056#(<= (+ main_offset 1020) main_length), 6057#(<= (+ main_offset 1016) main_length), 6058#(<= (+ main_offset 1012) main_length), 6059#(<= (+ main_offset 1008) main_length), 6060#(<= (+ main_offset 1004) main_length), 6061#(<= (+ main_offset 1000) main_length), 6062#(<= (+ main_offset 996) main_length), 6063#(<= (+ main_offset 992) main_length), 6064#(<= (+ main_offset 988) main_length), 6065#(<= (+ main_offset 984) main_length), 6066#(<= (+ main_offset 980) main_length), 6067#(<= (+ main_offset 976) main_length), 6068#(<= (+ main_offset 972) main_length), 6069#(<= (+ main_offset 968) main_length), 6070#(<= (+ main_offset 964) main_length), 6071#(<= (+ main_offset 960) main_length), 6072#(<= (+ main_offset 956) main_length), 6073#(<= (+ main_offset 952) main_length), 6074#(<= (+ main_offset 948) main_length), 6075#(<= (+ main_offset 944) main_length), 6076#(<= (+ main_offset 940) main_length), 6077#(<= (+ main_offset 936) main_length), 6078#(<= (+ main_offset 932) main_length), 6079#(<= (+ main_offset 928) main_length)] [2018-07-23 13:51:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 1190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,619 INFO L450 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-07-23 13:51:45,619 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-07-23 13:51:45,620 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:51:45,620 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand 37 states. [2018-07-23 13:51:45,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,654 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2018-07-23 13:51:45,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-07-23 13:51:45,655 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 71 [2018-07-23 13:51:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,656 INFO L225 Difference]: With dead ends: 75 [2018-07-23 13:51:45,656 INFO L226 Difference]: Without dead ends: 74 [2018-07-23 13:51:45,657 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2018-07-23 13:51:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-07-23 13:51:45,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-07-23 13:51:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-07-23 13:51:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2018-07-23 13:51:45,660 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 71 [2018-07-23 13:51:45,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,661 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2018-07-23 13:51:45,661 INFO L472 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-07-23 13:51:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2018-07-23 13:51:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-07-23 13:51:45,662 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,662 INFO L357 BasicCegarLoop]: trace histogram [36, 35, 1, 1] [2018-07-23 13:51:45,662 INFO L414 AbstractCegarLoop]: === Iteration 36 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,662 INFO L82 PathProgramCache]: Analyzing trace with hash -714784666, now seen corresponding path program 35 times [2018-07-23 13:51:45,664 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,848 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:45,848 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2018-07-23 13:51:45,848 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,852 INFO L185 omatonBuilderFactory]: Interpolants [6400#(<= (+ main_offset 984) main_length), 6401#(<= (+ main_offset 980) main_length), 6402#(<= (+ main_offset 976) main_length), 6403#(<= (+ main_offset 972) main_length), 6404#(<= (+ main_offset 968) main_length), 6405#(<= (+ main_offset 964) main_length), 6406#(<= (+ main_offset 960) main_length), 6407#(<= (+ main_offset 956) main_length), 6408#(<= (+ main_offset 952) main_length), 6409#(<= (+ main_offset 948) main_length), 6410#(<= (+ main_offset 944) main_length), 6411#(<= (+ main_offset 940) main_length), 6412#(<= (+ main_offset 936) main_length), 6413#(<= (+ main_offset 932) main_length), 6414#(<= (+ main_offset 928) main_length), 6415#(<= (+ main_offset 924) main_length), 6416#(<= (+ main_offset 920) main_length), 6417#(<= (+ main_offset 916) main_length), 6418#(<= (+ main_offset 912) main_length), 6419#(<= (+ main_offset 908) main_length), 6382#true, 6383#false, 6384#(<= (+ main_offset 1048) main_length), 6385#(<= (+ main_offset 1044) main_length), 6386#(<= (+ main_offset 1040) main_length), 6387#(<= (+ main_offset 1036) main_length), 6388#(<= (+ main_offset 1032) main_length), 6389#(<= (+ main_offset 1028) main_length), 6390#(<= (+ main_offset 1024) main_length), 6391#(<= (+ main_offset 1020) main_length), 6392#(<= (+ main_offset 1016) main_length), 6393#(<= (+ main_offset 1012) main_length), 6394#(<= (+ main_offset 1008) main_length), 6395#(<= (+ main_offset 1004) main_length), 6396#(<= (+ main_offset 1000) main_length), 6397#(<= (+ main_offset 996) main_length), 6398#(<= (+ main_offset 992) main_length), 6399#(<= (+ main_offset 988) main_length)] [2018-07-23 13:51:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:45,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-07-23 13:51:45,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-07-23 13:51:45,854 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2018-07-23 13:51:45,854 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand 38 states. [2018-07-23 13:51:45,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:45,887 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2018-07-23 13:51:45,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-23 13:51:45,888 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 73 [2018-07-23 13:51:45,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:45,888 INFO L225 Difference]: With dead ends: 77 [2018-07-23 13:51:45,888 INFO L226 Difference]: Without dead ends: 76 [2018-07-23 13:51:45,889 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 13:51:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-07-23 13:51:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-07-23 13:51:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-07-23 13:51:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2018-07-23 13:51:45,894 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 73 [2018-07-23 13:51:45,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:45,894 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2018-07-23 13:51:45,894 INFO L472 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-07-23 13:51:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2018-07-23 13:51:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-23 13:51:45,895 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:45,895 INFO L357 BasicCegarLoop]: trace histogram [37, 36, 1, 1] [2018-07-23 13:51:45,895 INFO L414 AbstractCegarLoop]: === Iteration 37 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:45,895 INFO L82 PathProgramCache]: Analyzing trace with hash 286704424, now seen corresponding path program 36 times [2018-07-23 13:51:45,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:45,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,080 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,080 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2018-07-23 13:51:46,081 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,082 INFO L185 omatonBuilderFactory]: Interpolants [6726#true, 6727#false, 6728#(<= (+ main_offset 1048) main_length), 6729#(<= (+ main_offset 1044) main_length), 6730#(<= (+ main_offset 1040) main_length), 6731#(<= (+ main_offset 1036) main_length), 6732#(<= (+ main_offset 1032) main_length), 6733#(<= (+ main_offset 1028) main_length), 6734#(<= (+ main_offset 1024) main_length), 6735#(<= (+ main_offset 1020) main_length), 6736#(<= (+ main_offset 1016) main_length), 6737#(<= (+ main_offset 1012) main_length), 6738#(<= (+ main_offset 1008) main_length), 6739#(<= (+ main_offset 1004) main_length), 6740#(<= (+ main_offset 1000) main_length), 6741#(<= (+ main_offset 996) main_length), 6742#(<= (+ main_offset 992) main_length), 6743#(<= (+ main_offset 988) main_length), 6744#(<= (+ main_offset 984) main_length), 6745#(<= (+ main_offset 980) main_length), 6746#(<= (+ main_offset 976) main_length), 6747#(<= (+ main_offset 972) main_length), 6748#(<= (+ main_offset 968) main_length), 6749#(<= (+ main_offset 964) main_length), 6750#(<= (+ main_offset 960) main_length), 6751#(<= (+ main_offset 956) main_length), 6752#(<= (+ main_offset 952) main_length), 6753#(<= (+ main_offset 948) main_length), 6754#(<= (+ main_offset 944) main_length), 6755#(<= (+ main_offset 940) main_length), 6756#(<= (+ main_offset 936) main_length), 6757#(<= (+ main_offset 932) main_length), 6758#(<= (+ main_offset 928) main_length), 6759#(<= (+ main_offset 924) main_length), 6760#(<= (+ main_offset 920) main_length), 6761#(<= (+ main_offset 916) main_length), 6762#(<= (+ main_offset 912) main_length), 6763#(<= (+ main_offset 908) main_length), 6764#(<= (+ main_offset 904) main_length)] [2018-07-23 13:51:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 0 proven. 1332 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,083 INFO L450 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-07-23 13:51:46,083 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-07-23 13:51:46,084 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 13:51:46,085 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 39 states. [2018-07-23 13:51:46,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,127 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2018-07-23 13:51:46,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-07-23 13:51:46,128 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 75 [2018-07-23 13:51:46,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,128 INFO L225 Difference]: With dead ends: 79 [2018-07-23 13:51:46,129 INFO L226 Difference]: Without dead ends: 78 [2018-07-23 13:51:46,130 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 13:51:46,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-23 13:51:46,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-07-23 13:51:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-07-23 13:51:46,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2018-07-23 13:51:46,134 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 75 [2018-07-23 13:51:46,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,135 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2018-07-23 13:51:46,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-07-23 13:51:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2018-07-23 13:51:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-23 13:51:46,137 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,137 INFO L357 BasicCegarLoop]: trace histogram [38, 37, 1, 1] [2018-07-23 13:51:46,138 INFO L414 AbstractCegarLoop]: === Iteration 38 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,138 INFO L82 PathProgramCache]: Analyzing trace with hash 645045610, now seen corresponding path program 37 times [2018-07-23 13:51:46,138 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,349 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,350 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2018-07-23 13:51:46,350 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,350 INFO L185 omatonBuilderFactory]: Interpolants [7104#(<= (+ main_offset 956) main_length), 7105#(<= (+ main_offset 952) main_length), 7106#(<= (+ main_offset 948) main_length), 7107#(<= (+ main_offset 944) main_length), 7108#(<= (+ main_offset 940) main_length), 7109#(<= (+ main_offset 936) main_length), 7110#(<= (+ main_offset 932) main_length), 7111#(<= (+ main_offset 928) main_length), 7112#(<= (+ main_offset 924) main_length), 7113#(<= (+ main_offset 920) main_length), 7114#(<= (+ main_offset 916) main_length), 7115#(<= (+ main_offset 912) main_length), 7116#(<= (+ main_offset 908) main_length), 7117#(<= (+ main_offset 904) main_length), 7118#(<= (+ main_offset 900) main_length), 7079#true, 7080#false, 7081#(<= (+ main_offset 1048) main_length), 7082#(<= (+ main_offset 1044) main_length), 7083#(<= (+ main_offset 1040) main_length), 7084#(<= (+ main_offset 1036) main_length), 7085#(<= (+ main_offset 1032) main_length), 7086#(<= (+ main_offset 1028) main_length), 7087#(<= (+ main_offset 1024) main_length), 7088#(<= (+ main_offset 1020) main_length), 7089#(<= (+ main_offset 1016) main_length), 7090#(<= (+ main_offset 1012) main_length), 7091#(<= (+ main_offset 1008) main_length), 7092#(<= (+ main_offset 1004) main_length), 7093#(<= (+ main_offset 1000) main_length), 7094#(<= (+ main_offset 996) main_length), 7095#(<= (+ main_offset 992) main_length), 7096#(<= (+ main_offset 988) main_length), 7097#(<= (+ main_offset 984) main_length), 7098#(<= (+ main_offset 980) main_length), 7099#(<= (+ main_offset 976) main_length), 7100#(<= (+ main_offset 972) main_length), 7101#(<= (+ main_offset 968) main_length), 7102#(<= (+ main_offset 964) main_length), 7103#(<= (+ main_offset 960) main_length)] [2018-07-23 13:51:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,351 INFO L450 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-07-23 13:51:46,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-07-23 13:51:46,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2018-07-23 13:51:46,353 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand 40 states. [2018-07-23 13:51:46,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,389 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2018-07-23 13:51:46,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-07-23 13:51:46,389 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 77 [2018-07-23 13:51:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,390 INFO L225 Difference]: With dead ends: 81 [2018-07-23 13:51:46,390 INFO L226 Difference]: Without dead ends: 80 [2018-07-23 13:51:46,392 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 13:51:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-07-23 13:51:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-07-23 13:51:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-07-23 13:51:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-07-23 13:51:46,398 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 77 [2018-07-23 13:51:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,399 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-07-23 13:51:46,399 INFO L472 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-07-23 13:51:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-07-23 13:51:46,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-07-23 13:51:46,400 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,400 INFO L357 BasicCegarLoop]: trace histogram [39, 38, 1, 1] [2018-07-23 13:51:46,400 INFO L414 AbstractCegarLoop]: === Iteration 39 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1413541676, now seen corresponding path program 38 times [2018-07-23 13:51:46,401 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,660 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,660 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2018-07-23 13:51:46,660 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,660 INFO L185 omatonBuilderFactory]: Interpolants [7441#true, 7442#false, 7443#(<= (+ main_offset 1048) main_length), 7444#(<= (+ main_offset 1044) main_length), 7445#(<= (+ main_offset 1040) main_length), 7446#(<= (+ main_offset 1036) main_length), 7447#(<= (+ main_offset 1032) main_length), 7448#(<= (+ main_offset 1028) main_length), 7449#(<= (+ main_offset 1024) main_length), 7450#(<= (+ main_offset 1020) main_length), 7451#(<= (+ main_offset 1016) main_length), 7452#(<= (+ main_offset 1012) main_length), 7453#(<= (+ main_offset 1008) main_length), 7454#(<= (+ main_offset 1004) main_length), 7455#(<= (+ main_offset 1000) main_length), 7456#(<= (+ main_offset 996) main_length), 7457#(<= (+ main_offset 992) main_length), 7458#(<= (+ main_offset 988) main_length), 7459#(<= (+ main_offset 984) main_length), 7460#(<= (+ main_offset 980) main_length), 7461#(<= (+ main_offset 976) main_length), 7462#(<= (+ main_offset 972) main_length), 7463#(<= (+ main_offset 968) main_length), 7464#(<= (+ main_offset 964) main_length), 7465#(<= (+ main_offset 960) main_length), 7466#(<= (+ main_offset 956) main_length), 7467#(<= (+ main_offset 952) main_length), 7468#(<= (+ main_offset 948) main_length), 7469#(<= (+ main_offset 944) main_length), 7470#(<= (+ main_offset 940) main_length), 7471#(<= (+ main_offset 936) main_length), 7472#(<= (+ main_offset 932) main_length), 7473#(<= (+ main_offset 928) main_length), 7474#(<= (+ main_offset 924) main_length), 7475#(<= (+ main_offset 920) main_length), 7476#(<= (+ main_offset 916) main_length), 7477#(<= (+ main_offset 912) main_length), 7478#(<= (+ main_offset 908) main_length), 7479#(<= (+ main_offset 904) main_length), 7480#(<= (+ main_offset 900) main_length), 7481#(<= (+ main_offset 896) main_length)] [2018-07-23 13:51:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 0 proven. 1482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,661 INFO L450 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-07-23 13:51:46,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-07-23 13:51:46,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:51:46,663 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 41 states. [2018-07-23 13:51:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,702 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2018-07-23 13:51:46,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-07-23 13:51:46,702 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 79 [2018-07-23 13:51:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,703 INFO L225 Difference]: With dead ends: 83 [2018-07-23 13:51:46,703 INFO L226 Difference]: Without dead ends: 82 [2018-07-23 13:51:46,704 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2018-07-23 13:51:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-07-23 13:51:46,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-07-23 13:51:46,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-07-23 13:51:46,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2018-07-23 13:51:46,708 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 79 [2018-07-23 13:51:46,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,708 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2018-07-23 13:51:46,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-07-23 13:51:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2018-07-23 13:51:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-07-23 13:51:46,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,709 INFO L357 BasicCegarLoop]: trace histogram [40, 39, 1, 1] [2018-07-23 13:51:46,709 INFO L414 AbstractCegarLoop]: === Iteration 40 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1203886190, now seen corresponding path program 39 times [2018-07-23 13:51:46,710 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,891 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:46,891 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2018-07-23 13:51:46,892 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,892 INFO L185 omatonBuilderFactory]: Interpolants [7812#true, 7813#false, 7814#(<= (+ main_offset 1048) main_length), 7815#(<= (+ main_offset 1044) main_length), 7816#(<= (+ main_offset 1040) main_length), 7817#(<= (+ main_offset 1036) main_length), 7818#(<= (+ main_offset 1032) main_length), 7819#(<= (+ main_offset 1028) main_length), 7820#(<= (+ main_offset 1024) main_length), 7821#(<= (+ main_offset 1020) main_length), 7822#(<= (+ main_offset 1016) main_length), 7823#(<= (+ main_offset 1012) main_length), 7824#(<= (+ main_offset 1008) main_length), 7825#(<= (+ main_offset 1004) main_length), 7826#(<= (+ main_offset 1000) main_length), 7827#(<= (+ main_offset 996) main_length), 7828#(<= (+ main_offset 992) main_length), 7829#(<= (+ main_offset 988) main_length), 7830#(<= (+ main_offset 984) main_length), 7831#(<= (+ main_offset 980) main_length), 7832#(<= (+ main_offset 976) main_length), 7833#(<= (+ main_offset 972) main_length), 7834#(<= (+ main_offset 968) main_length), 7835#(<= (+ main_offset 964) main_length), 7836#(<= (+ main_offset 960) main_length), 7837#(<= (+ main_offset 956) main_length), 7838#(<= (+ main_offset 952) main_length), 7839#(<= (+ main_offset 948) main_length), 7840#(<= (+ main_offset 944) main_length), 7841#(<= (+ main_offset 940) main_length), 7842#(<= (+ main_offset 936) main_length), 7843#(<= (+ main_offset 932) main_length), 7844#(<= (+ main_offset 928) main_length), 7845#(<= (+ main_offset 924) main_length), 7846#(<= (+ main_offset 920) main_length), 7847#(<= (+ main_offset 916) main_length), 7848#(<= (+ main_offset 912) main_length), 7849#(<= (+ main_offset 908) main_length), 7850#(<= (+ main_offset 904) main_length), 7851#(<= (+ main_offset 900) main_length), 7852#(<= (+ main_offset 896) main_length), 7853#(<= (+ main_offset 892) main_length)] [2018-07-23 13:51:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:46,893 INFO L450 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-07-23 13:51:46,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-07-23 13:51:46,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 13:51:46,895 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand 42 states. [2018-07-23 13:51:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:46,938 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2018-07-23 13:51:46,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-23 13:51:46,938 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 81 [2018-07-23 13:51:46,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:46,939 INFO L225 Difference]: With dead ends: 85 [2018-07-23 13:51:46,939 INFO L226 Difference]: Without dead ends: 84 [2018-07-23 13:51:46,940 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 13:51:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2018-07-23 13:51:46,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2018-07-23 13:51:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-07-23 13:51:46,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2018-07-23 13:51:46,945 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 81 [2018-07-23 13:51:46,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:46,945 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2018-07-23 13:51:46,945 INFO L472 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-07-23 13:51:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2018-07-23 13:51:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-07-23 13:51:46,946 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:46,946 INFO L357 BasicCegarLoop]: trace histogram [41, 40, 1, 1] [2018-07-23 13:51:46,946 INFO L414 AbstractCegarLoop]: === Iteration 41 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:46,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1588427056, now seen corresponding path program 40 times [2018-07-23 13:51:46,947 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,134 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-07-23 13:51:47,135 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,135 INFO L185 omatonBuilderFactory]: Interpolants [8192#true, 8193#false, 8194#(<= (+ main_offset 1048) main_length), 8195#(<= (+ main_offset 1044) main_length), 8196#(<= (+ main_offset 1040) main_length), 8197#(<= (+ main_offset 1036) main_length), 8198#(<= (+ main_offset 1032) main_length), 8199#(<= (+ main_offset 1028) main_length), 8200#(<= (+ main_offset 1024) main_length), 8201#(<= (+ main_offset 1020) main_length), 8202#(<= (+ main_offset 1016) main_length), 8203#(<= (+ main_offset 1012) main_length), 8204#(<= (+ main_offset 1008) main_length), 8205#(<= (+ main_offset 1004) main_length), 8206#(<= (+ main_offset 1000) main_length), 8207#(<= (+ main_offset 996) main_length), 8208#(<= (+ main_offset 992) main_length), 8209#(<= (+ main_offset 988) main_length), 8210#(<= (+ main_offset 984) main_length), 8211#(<= (+ main_offset 980) main_length), 8212#(<= (+ main_offset 976) main_length), 8213#(<= (+ main_offset 972) main_length), 8214#(<= (+ main_offset 968) main_length), 8215#(<= (+ main_offset 964) main_length), 8216#(<= (+ main_offset 960) main_length), 8217#(<= (+ main_offset 956) main_length), 8218#(<= (+ main_offset 952) main_length), 8219#(<= (+ main_offset 948) main_length), 8220#(<= (+ main_offset 944) main_length), 8221#(<= (+ main_offset 940) main_length), 8222#(<= (+ main_offset 936) main_length), 8223#(<= (+ main_offset 932) main_length), 8224#(<= (+ main_offset 928) main_length), 8225#(<= (+ main_offset 924) main_length), 8226#(<= (+ main_offset 920) main_length), 8227#(<= (+ main_offset 916) main_length), 8228#(<= (+ main_offset 912) main_length), 8229#(<= (+ main_offset 908) main_length), 8230#(<= (+ main_offset 904) main_length), 8231#(<= (+ main_offset 900) main_length), 8232#(<= (+ main_offset 896) main_length), 8233#(<= (+ main_offset 892) main_length), 8234#(<= (+ main_offset 888) main_length)] [2018-07-23 13:51:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 0 proven. 1640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-07-23 13:51:47,136 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-07-23 13:51:47,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2018-07-23 13:51:47,138 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand 43 states. [2018-07-23 13:51:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,182 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-07-23 13:51:47,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-07-23 13:51:47,183 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 83 [2018-07-23 13:51:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,183 INFO L225 Difference]: With dead ends: 87 [2018-07-23 13:51:47,184 INFO L226 Difference]: Without dead ends: 86 [2018-07-23 13:51:47,185 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 13:51:47,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-23 13:51:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2018-07-23 13:51:47,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-23 13:51:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-07-23 13:51:47,189 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 83 [2018-07-23 13:51:47,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,190 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-07-23 13:51:47,190 INFO L472 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-07-23 13:51:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-07-23 13:51:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-23 13:51:47,191 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,191 INFO L357 BasicCegarLoop]: trace histogram [42, 41, 1, 1] [2018-07-23 13:51:47,191 INFO L414 AbstractCegarLoop]: === Iteration 42 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1765011826, now seen corresponding path program 41 times [2018-07-23 13:51:47,191 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,375 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,375 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-07-23 13:51:47,375 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,376 INFO L185 omatonBuilderFactory]: Interpolants [8581#true, 8582#false, 8583#(<= (+ main_offset 1048) main_length), 8584#(<= (+ main_offset 1044) main_length), 8585#(<= (+ main_offset 1040) main_length), 8586#(<= (+ main_offset 1036) main_length), 8587#(<= (+ main_offset 1032) main_length), 8588#(<= (+ main_offset 1028) main_length), 8589#(<= (+ main_offset 1024) main_length), 8590#(<= (+ main_offset 1020) main_length), 8591#(<= (+ main_offset 1016) main_length), 8592#(<= (+ main_offset 1012) main_length), 8593#(<= (+ main_offset 1008) main_length), 8594#(<= (+ main_offset 1004) main_length), 8595#(<= (+ main_offset 1000) main_length), 8596#(<= (+ main_offset 996) main_length), 8597#(<= (+ main_offset 992) main_length), 8598#(<= (+ main_offset 988) main_length), 8599#(<= (+ main_offset 984) main_length), 8600#(<= (+ main_offset 980) main_length), 8601#(<= (+ main_offset 976) main_length), 8602#(<= (+ main_offset 972) main_length), 8603#(<= (+ main_offset 968) main_length), 8604#(<= (+ main_offset 964) main_length), 8605#(<= (+ main_offset 960) main_length), 8606#(<= (+ main_offset 956) main_length), 8607#(<= (+ main_offset 952) main_length), 8608#(<= (+ main_offset 948) main_length), 8609#(<= (+ main_offset 944) main_length), 8610#(<= (+ main_offset 940) main_length), 8611#(<= (+ main_offset 936) main_length), 8612#(<= (+ main_offset 932) main_length), 8613#(<= (+ main_offset 928) main_length), 8614#(<= (+ main_offset 924) main_length), 8615#(<= (+ main_offset 920) main_length), 8616#(<= (+ main_offset 916) main_length), 8617#(<= (+ main_offset 912) main_length), 8618#(<= (+ main_offset 908) main_length), 8619#(<= (+ main_offset 904) main_length), 8620#(<= (+ main_offset 900) main_length), 8621#(<= (+ main_offset 896) main_length), 8622#(<= (+ main_offset 892) main_length), 8623#(<= (+ main_offset 888) main_length), 8624#(<= (+ main_offset 884) main_length)] [2018-07-23 13:51:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-07-23 13:51:47,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-07-23 13:51:47,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2018-07-23 13:51:47,378 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 44 states. [2018-07-23 13:51:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,422 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2018-07-23 13:51:47,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-07-23 13:51:47,422 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 85 [2018-07-23 13:51:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,423 INFO L225 Difference]: With dead ends: 89 [2018-07-23 13:51:47,423 INFO L226 Difference]: Without dead ends: 88 [2018-07-23 13:51:47,424 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 13:51:47,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-07-23 13:51:47,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2018-07-23 13:51:47,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-07-23 13:51:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-07-23 13:51:47,429 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 85 [2018-07-23 13:51:47,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,430 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-07-23 13:51:47,430 INFO L472 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-07-23 13:51:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-07-23 13:51:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-23 13:51:47,431 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,431 INFO L357 BasicCegarLoop]: trace histogram [43, 42, 1, 1] [2018-07-23 13:51:47,431 INFO L414 AbstractCegarLoop]: === Iteration 43 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,431 INFO L82 PathProgramCache]: Analyzing trace with hash -335716044, now seen corresponding path program 42 times [2018-07-23 13:51:47,431 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,621 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,622 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2018-07-23 13:51:47,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,622 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 13:51:47,623 INFO L185 omatonBuilderFactory]: Interpolants [8979#true, 8980#false, 8981#(<= (+ main_offset 1048) main_length), 8982#(<= (+ main_offset 1044) main_length), 8983#(<= (+ main_offset 1040) main_length), 8984#(<= (+ main_offset 1036) main_length), 8985#(<= (+ main_offset 1032) main_length), 8986#(<= (+ main_offset 1028) main_length), 8987#(<= (+ main_offset 1024) main_length), 8988#(<= (+ main_offset 1020) main_length), 8989#(<= (+ main_offset 1016) main_length), 8990#(<= (+ main_offset 1012) main_length), 8991#(<= (+ main_offset 1008) main_length), 8992#(<= (+ main_offset 1004) main_length), 8993#(<= (+ main_offset 1000) main_length), 8994#(<= (+ main_offset 996) main_length), 8995#(<= (+ main_offset 992) main_length), 8996#(<= (+ main_offset 988) main_length), 8997#(<= (+ main_offset 984) main_length), 8998#(<= (+ main_offset 980) main_length), 8999#(<= (+ main_offset 976) main_length), 9000#(<= (+ main_offset 972) main_length), 9001#(<= (+ main_offset 968) main_length), 9002#(<= (+ main_offset 964) main_length), 9003#(<= (+ main_offset 960) main_length), 9004#(<= (+ main_offset 956) main_length), 9005#(<= (+ main_offset 952) main_length), 9006#(<= (+ main_offset 948) main_length), 9007#(<= (+ main_offset 944) main_length), 9008#(<= (+ main_offset 940) main_length), 9009#(<= (+ main_offset 936) main_length), 9010#(<= (+ main_offset 932) main_length), 9011#(<= (+ main_offset 928) main_length), 9012#(<= (+ main_offset 924) main_length), 9013#(<= (+ main_offset 920) main_length), 9014#(<= (+ main_offset 916) main_length), 9015#(<= (+ main_offset 912) main_length), 9016#(<= (+ main_offset 908) main_length), 9017#(<= (+ main_offset 904) main_length), 9018#(<= (+ main_offset 900) main_length), 9019#(<= (+ main_offset 896) main_length), 9020#(<= (+ main_offset 892) main_length), 9021#(<= (+ main_offset 888) main_length), 9022#(<= (+ main_offset 884) main_length), 9023#(<= (+ main_offset 880) main_length)] [2018-07-23 13:51:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 0 proven. 1806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,623 INFO L450 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-07-23 13:51:47,624 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-07-23 13:51:47,625 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2018-07-23 13:51:47,625 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 45 states. [2018-07-23 13:51:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,672 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2018-07-23 13:51:47,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-23 13:51:47,672 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 87 [2018-07-23 13:51:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,673 INFO L225 Difference]: With dead ends: 91 [2018-07-23 13:51:47,673 INFO L226 Difference]: Without dead ends: 90 [2018-07-23 13:51:47,674 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 13:51:47,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-07-23 13:51:47,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2018-07-23 13:51:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2018-07-23 13:51:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2018-07-23 13:51:47,679 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 87 [2018-07-23 13:51:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,679 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2018-07-23 13:51:47,680 INFO L472 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-07-23 13:51:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2018-07-23 13:51:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-07-23 13:51:47,681 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,681 INFO L357 BasicCegarLoop]: trace histogram [44, 43, 1, 1] [2018-07-23 13:51:47,681 INFO L414 AbstractCegarLoop]: === Iteration 44 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,681 INFO L82 PathProgramCache]: Analyzing trace with hash -500569994, now seen corresponding path program 43 times [2018-07-23 13:51:47,681 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,879 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:47,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2018-07-23 13:51:47,880 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,881 INFO L185 omatonBuilderFactory]: Interpolants [9408#(<= (+ main_offset 968) main_length), 9409#(<= (+ main_offset 964) main_length), 9410#(<= (+ main_offset 960) main_length), 9411#(<= (+ main_offset 956) main_length), 9412#(<= (+ main_offset 952) main_length), 9413#(<= (+ main_offset 948) main_length), 9414#(<= (+ main_offset 944) main_length), 9415#(<= (+ main_offset 940) main_length), 9416#(<= (+ main_offset 936) main_length), 9417#(<= (+ main_offset 932) main_length), 9418#(<= (+ main_offset 928) main_length), 9419#(<= (+ main_offset 924) main_length), 9420#(<= (+ main_offset 920) main_length), 9421#(<= (+ main_offset 916) main_length), 9422#(<= (+ main_offset 912) main_length), 9423#(<= (+ main_offset 908) main_length), 9424#(<= (+ main_offset 904) main_length), 9425#(<= (+ main_offset 900) main_length), 9426#(<= (+ main_offset 896) main_length), 9427#(<= (+ main_offset 892) main_length), 9428#(<= (+ main_offset 888) main_length), 9429#(<= (+ main_offset 884) main_length), 9430#(<= (+ main_offset 880) main_length), 9431#(<= (+ main_offset 876) main_length), 9386#true, 9387#false, 9388#(<= (+ main_offset 1048) main_length), 9389#(<= (+ main_offset 1044) main_length), 9390#(<= (+ main_offset 1040) main_length), 9391#(<= (+ main_offset 1036) main_length), 9392#(<= (+ main_offset 1032) main_length), 9393#(<= (+ main_offset 1028) main_length), 9394#(<= (+ main_offset 1024) main_length), 9395#(<= (+ main_offset 1020) main_length), 9396#(<= (+ main_offset 1016) main_length), 9397#(<= (+ main_offset 1012) main_length), 9398#(<= (+ main_offset 1008) main_length), 9399#(<= (+ main_offset 1004) main_length), 9400#(<= (+ main_offset 1000) main_length), 9401#(<= (+ main_offset 996) main_length), 9402#(<= (+ main_offset 992) main_length), 9403#(<= (+ main_offset 988) main_length), 9404#(<= (+ main_offset 984) main_length), 9405#(<= (+ main_offset 980) main_length), 9406#(<= (+ main_offset 976) main_length), 9407#(<= (+ main_offset 972) main_length)] [2018-07-23 13:51:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:47,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-07-23 13:51:47,882 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-07-23 13:51:47,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2018-07-23 13:51:47,883 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 46 states. [2018-07-23 13:51:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:47,924 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2018-07-23 13:51:47,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-07-23 13:51:47,924 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 89 [2018-07-23 13:51:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:47,925 INFO L225 Difference]: With dead ends: 93 [2018-07-23 13:51:47,926 INFO L226 Difference]: Without dead ends: 92 [2018-07-23 13:51:47,927 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 13:51:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-07-23 13:51:47,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-07-23 13:51:47,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-07-23 13:51:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2018-07-23 13:51:47,935 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 89 [2018-07-23 13:51:47,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:47,935 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2018-07-23 13:51:47,935 INFO L472 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-07-23 13:51:47,935 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2018-07-23 13:51:47,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-23 13:51:47,936 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:47,936 INFO L357 BasicCegarLoop]: trace histogram [45, 44, 1, 1] [2018-07-23 13:51:47,936 INFO L414 AbstractCegarLoop]: === Iteration 45 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:47,937 INFO L82 PathProgramCache]: Analyzing trace with hash -11425992, now seen corresponding path program 44 times [2018-07-23 13:51:47,937 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,158 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2018-07-23 13:51:48,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,159 INFO L185 omatonBuilderFactory]: Interpolants [9802#true, 9803#false, 9804#(<= (+ main_offset 1048) main_length), 9805#(<= (+ main_offset 1044) main_length), 9806#(<= (+ main_offset 1040) main_length), 9807#(<= (+ main_offset 1036) main_length), 9808#(<= (+ main_offset 1032) main_length), 9809#(<= (+ main_offset 1028) main_length), 9810#(<= (+ main_offset 1024) main_length), 9811#(<= (+ main_offset 1020) main_length), 9812#(<= (+ main_offset 1016) main_length), 9813#(<= (+ main_offset 1012) main_length), 9814#(<= (+ main_offset 1008) main_length), 9815#(<= (+ main_offset 1004) main_length), 9816#(<= (+ main_offset 1000) main_length), 9817#(<= (+ main_offset 996) main_length), 9818#(<= (+ main_offset 992) main_length), 9819#(<= (+ main_offset 988) main_length), 9820#(<= (+ main_offset 984) main_length), 9821#(<= (+ main_offset 980) main_length), 9822#(<= (+ main_offset 976) main_length), 9823#(<= (+ main_offset 972) main_length), 9824#(<= (+ main_offset 968) main_length), 9825#(<= (+ main_offset 964) main_length), 9826#(<= (+ main_offset 960) main_length), 9827#(<= (+ main_offset 956) main_length), 9828#(<= (+ main_offset 952) main_length), 9829#(<= (+ main_offset 948) main_length), 9830#(<= (+ main_offset 944) main_length), 9831#(<= (+ main_offset 940) main_length), 9832#(<= (+ main_offset 936) main_length), 9833#(<= (+ main_offset 932) main_length), 9834#(<= (+ main_offset 928) main_length), 9835#(<= (+ main_offset 924) main_length), 9836#(<= (+ main_offset 920) main_length), 9837#(<= (+ main_offset 916) main_length), 9838#(<= (+ main_offset 912) main_length), 9839#(<= (+ main_offset 908) main_length), 9840#(<= (+ main_offset 904) main_length), 9841#(<= (+ main_offset 900) main_length), 9842#(<= (+ main_offset 896) main_length), 9843#(<= (+ main_offset 892) main_length), 9844#(<= (+ main_offset 888) main_length), 9845#(<= (+ main_offset 884) main_length), 9846#(<= (+ main_offset 880) main_length), 9847#(<= (+ main_offset 876) main_length), 9848#(<= (+ main_offset 872) main_length)] [2018-07-23 13:51:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-07-23 13:51:48,160 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-07-23 13:51:48,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2018-07-23 13:51:48,162 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand 47 states. [2018-07-23 13:51:48,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:48,218 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2018-07-23 13:51:48,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-07-23 13:51:48,218 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 91 [2018-07-23 13:51:48,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:48,219 INFO L225 Difference]: With dead ends: 95 [2018-07-23 13:51:48,219 INFO L226 Difference]: Without dead ends: 94 [2018-07-23 13:51:48,220 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 13:51:48,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-07-23 13:51:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2018-07-23 13:51:48,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-07-23 13:51:48,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2018-07-23 13:51:48,232 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 91 [2018-07-23 13:51:48,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:48,232 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2018-07-23 13:51:48,232 INFO L472 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-07-23 13:51:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2018-07-23 13:51:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-23 13:51:48,233 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:48,233 INFO L357 BasicCegarLoop]: trace histogram [46, 45, 1, 1] [2018-07-23 13:51:48,234 INFO L414 AbstractCegarLoop]: === Iteration 46 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1904524666, now seen corresponding path program 45 times [2018-07-23 13:51:48,234 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,461 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,461 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-07-23 13:51:48,461 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,462 INFO L185 omatonBuilderFactory]: Interpolants [10240#(<= (+ main_offset 1004) main_length), 10241#(<= (+ main_offset 1000) main_length), 10242#(<= (+ main_offset 996) main_length), 10243#(<= (+ main_offset 992) main_length), 10244#(<= (+ main_offset 988) main_length), 10245#(<= (+ main_offset 984) main_length), 10246#(<= (+ main_offset 980) main_length), 10247#(<= (+ main_offset 976) main_length), 10248#(<= (+ main_offset 972) main_length), 10249#(<= (+ main_offset 968) main_length), 10250#(<= (+ main_offset 964) main_length), 10251#(<= (+ main_offset 960) main_length), 10252#(<= (+ main_offset 956) main_length), 10253#(<= (+ main_offset 952) main_length), 10254#(<= (+ main_offset 948) main_length), 10255#(<= (+ main_offset 944) main_length), 10256#(<= (+ main_offset 940) main_length), 10257#(<= (+ main_offset 936) main_length), 10258#(<= (+ main_offset 932) main_length), 10259#(<= (+ main_offset 928) main_length), 10260#(<= (+ main_offset 924) main_length), 10261#(<= (+ main_offset 920) main_length), 10262#(<= (+ main_offset 916) main_length), 10263#(<= (+ main_offset 912) main_length), 10264#(<= (+ main_offset 908) main_length), 10265#(<= (+ main_offset 904) main_length), 10266#(<= (+ main_offset 900) main_length), 10267#(<= (+ main_offset 896) main_length), 10268#(<= (+ main_offset 892) main_length), 10269#(<= (+ main_offset 888) main_length), 10270#(<= (+ main_offset 884) main_length), 10271#(<= (+ main_offset 880) main_length), 10272#(<= (+ main_offset 876) main_length), 10273#(<= (+ main_offset 872) main_length), 10274#(<= (+ main_offset 868) main_length), 10227#true, 10228#false, 10229#(<= (+ main_offset 1048) main_length), 10230#(<= (+ main_offset 1044) main_length), 10231#(<= (+ main_offset 1040) main_length), 10232#(<= (+ main_offset 1036) main_length), 10233#(<= (+ main_offset 1032) main_length), 10234#(<= (+ main_offset 1028) main_length), 10235#(<= (+ main_offset 1024) main_length), 10236#(<= (+ main_offset 1020) main_length), 10237#(<= (+ main_offset 1016) main_length), 10238#(<= (+ main_offset 1012) main_length), 10239#(<= (+ main_offset 1008) main_length)] [2018-07-23 13:51:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,463 INFO L450 AbstractCegarLoop]: Interpolant automaton has 48 states [2018-07-23 13:51:48,463 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2018-07-23 13:51:48,464 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 13:51:48,464 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand 48 states. [2018-07-23 13:51:48,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:48,512 INFO L93 Difference]: Finished difference Result 97 states and 97 transitions. [2018-07-23 13:51:48,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2018-07-23 13:51:48,512 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 93 [2018-07-23 13:51:48,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:48,513 INFO L225 Difference]: With dead ends: 97 [2018-07-23 13:51:48,513 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 13:51:48,514 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 13:51:48,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 13:51:48,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-07-23 13:51:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-07-23 13:51:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2018-07-23 13:51:48,520 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 93 [2018-07-23 13:51:48,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:48,521 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2018-07-23 13:51:48,521 INFO L472 AbstractCegarLoop]: Interpolant automaton has 48 states. [2018-07-23 13:51:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2018-07-23 13:51:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-23 13:51:48,522 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:48,522 INFO L357 BasicCegarLoop]: trace histogram [47, 46, 1, 1] [2018-07-23 13:51:48,522 INFO L414 AbstractCegarLoop]: === Iteration 47 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:48,523 INFO L82 PathProgramCache]: Analyzing trace with hash 592137020, now seen corresponding path program 46 times [2018-07-23 13:51:48,523 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,785 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:48,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2018-07-23 13:51:48,786 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,786 INFO L185 omatonBuilderFactory]: Interpolants [10661#true, 10662#false, 10663#(<= (+ main_offset 1048) main_length), 10664#(<= (+ main_offset 1044) main_length), 10665#(<= (+ main_offset 1040) main_length), 10666#(<= (+ main_offset 1036) main_length), 10667#(<= (+ main_offset 1032) main_length), 10668#(<= (+ main_offset 1028) main_length), 10669#(<= (+ main_offset 1024) main_length), 10670#(<= (+ main_offset 1020) main_length), 10671#(<= (+ main_offset 1016) main_length), 10672#(<= (+ main_offset 1012) main_length), 10673#(<= (+ main_offset 1008) main_length), 10674#(<= (+ main_offset 1004) main_length), 10675#(<= (+ main_offset 1000) main_length), 10676#(<= (+ main_offset 996) main_length), 10677#(<= (+ main_offset 992) main_length), 10678#(<= (+ main_offset 988) main_length), 10679#(<= (+ main_offset 984) main_length), 10680#(<= (+ main_offset 980) main_length), 10681#(<= (+ main_offset 976) main_length), 10682#(<= (+ main_offset 972) main_length), 10683#(<= (+ main_offset 968) main_length), 10684#(<= (+ main_offset 964) main_length), 10685#(<= (+ main_offset 960) main_length), 10686#(<= (+ main_offset 956) main_length), 10687#(<= (+ main_offset 952) main_length), 10688#(<= (+ main_offset 948) main_length), 10689#(<= (+ main_offset 944) main_length), 10690#(<= (+ main_offset 940) main_length), 10691#(<= (+ main_offset 936) main_length), 10692#(<= (+ main_offset 932) main_length), 10693#(<= (+ main_offset 928) main_length), 10694#(<= (+ main_offset 924) main_length), 10695#(<= (+ main_offset 920) main_length), 10696#(<= (+ main_offset 916) main_length), 10697#(<= (+ main_offset 912) main_length), 10698#(<= (+ main_offset 908) main_length), 10699#(<= (+ main_offset 904) main_length), 10700#(<= (+ main_offset 900) main_length), 10701#(<= (+ main_offset 896) main_length), 10702#(<= (+ main_offset 892) main_length), 10703#(<= (+ main_offset 888) main_length), 10704#(<= (+ main_offset 884) main_length), 10705#(<= (+ main_offset 880) main_length), 10706#(<= (+ main_offset 876) main_length), 10707#(<= (+ main_offset 872) main_length), 10708#(<= (+ main_offset 868) main_length), 10709#(<= (+ main_offset 864) main_length)] [2018-07-23 13:51:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2162 backedges. 0 proven. 2162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:48,787 INFO L450 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-07-23 13:51:48,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-07-23 13:51:48,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2018-07-23 13:51:48,789 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand 49 states. [2018-07-23 13:51:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:48,837 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2018-07-23 13:51:48,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-07-23 13:51:48,837 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 95 [2018-07-23 13:51:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:48,838 INFO L225 Difference]: With dead ends: 99 [2018-07-23 13:51:48,839 INFO L226 Difference]: Without dead ends: 98 [2018-07-23 13:51:48,840 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 13:51:48,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-07-23 13:51:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-07-23 13:51:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-07-23 13:51:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2018-07-23 13:51:48,846 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 95 [2018-07-23 13:51:48,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:48,847 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2018-07-23 13:51:48,847 INFO L472 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-07-23 13:51:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2018-07-23 13:51:48,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-07-23 13:51:48,848 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:48,848 INFO L357 BasicCegarLoop]: trace histogram [48, 47, 1, 1] [2018-07-23 13:51:48,848 INFO L414 AbstractCegarLoop]: === Iteration 48 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:48,849 INFO L82 PathProgramCache]: Analyzing trace with hash 2107994238, now seen corresponding path program 47 times [2018-07-23 13:51:48,849 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,134 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2018-07-23 13:51:49,135 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,135 INFO L185 omatonBuilderFactory]: Interpolants [11136#(<= (+ main_offset 928) main_length), 11137#(<= (+ main_offset 924) main_length), 11138#(<= (+ main_offset 920) main_length), 11139#(<= (+ main_offset 916) main_length), 11140#(<= (+ main_offset 912) main_length), 11141#(<= (+ main_offset 908) main_length), 11142#(<= (+ main_offset 904) main_length), 11143#(<= (+ main_offset 900) main_length), 11144#(<= (+ main_offset 896) main_length), 11145#(<= (+ main_offset 892) main_length), 11146#(<= (+ main_offset 888) main_length), 11147#(<= (+ main_offset 884) main_length), 11148#(<= (+ main_offset 880) main_length), 11149#(<= (+ main_offset 876) main_length), 11150#(<= (+ main_offset 872) main_length), 11151#(<= (+ main_offset 868) main_length), 11152#(<= (+ main_offset 864) main_length), 11153#(<= (+ main_offset 860) main_length), 11104#true, 11105#false, 11106#(<= (+ main_offset 1048) main_length), 11107#(<= (+ main_offset 1044) main_length), 11108#(<= (+ main_offset 1040) main_length), 11109#(<= (+ main_offset 1036) main_length), 11110#(<= (+ main_offset 1032) main_length), 11111#(<= (+ main_offset 1028) main_length), 11112#(<= (+ main_offset 1024) main_length), 11113#(<= (+ main_offset 1020) main_length), 11114#(<= (+ main_offset 1016) main_length), 11115#(<= (+ main_offset 1012) main_length), 11116#(<= (+ main_offset 1008) main_length), 11117#(<= (+ main_offset 1004) main_length), 11118#(<= (+ main_offset 1000) main_length), 11119#(<= (+ main_offset 996) main_length), 11120#(<= (+ main_offset 992) main_length), 11121#(<= (+ main_offset 988) main_length), 11122#(<= (+ main_offset 984) main_length), 11123#(<= (+ main_offset 980) main_length), 11124#(<= (+ main_offset 976) main_length), 11125#(<= (+ main_offset 972) main_length), 11126#(<= (+ main_offset 968) main_length), 11127#(<= (+ main_offset 964) main_length), 11128#(<= (+ main_offset 960) main_length), 11129#(<= (+ main_offset 956) main_length), 11130#(<= (+ main_offset 952) main_length), 11131#(<= (+ main_offset 948) main_length), 11132#(<= (+ main_offset 944) main_length), 11133#(<= (+ main_offset 940) main_length), 11134#(<= (+ main_offset 936) main_length), 11135#(<= (+ main_offset 932) main_length)] [2018-07-23 13:51:49,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-07-23 13:51:49,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-07-23 13:51:49,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2018-07-23 13:51:49,137 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand 50 states. [2018-07-23 13:51:49,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,180 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2018-07-23 13:51:49,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-23 13:51:49,181 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 97 [2018-07-23 13:51:49,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,182 INFO L225 Difference]: With dead ends: 101 [2018-07-23 13:51:49,182 INFO L226 Difference]: Without dead ends: 100 [2018-07-23 13:51:49,183 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 13:51:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-07-23 13:51:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-07-23 13:51:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-07-23 13:51:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-07-23 13:51:49,190 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 97 [2018-07-23 13:51:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,191 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-07-23 13:51:49,191 INFO L472 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-07-23 13:51:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-07-23 13:51:49,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-23 13:51:49,192 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,192 INFO L357 BasicCegarLoop]: trace histogram [49, 48, 1, 1] [2018-07-23 13:51:49,192 INFO L414 AbstractCegarLoop]: === Iteration 49 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1442099904, now seen corresponding path program 48 times [2018-07-23 13:51:49,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,421 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,421 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2018-07-23 13:51:49,421 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,422 INFO L185 omatonBuilderFactory]: Interpolants [11556#true, 11557#false, 11558#(<= (+ main_offset 1048) main_length), 11559#(<= (+ main_offset 1044) main_length), 11560#(<= (+ main_offset 1040) main_length), 11561#(<= (+ main_offset 1036) main_length), 11562#(<= (+ main_offset 1032) main_length), 11563#(<= (+ main_offset 1028) main_length), 11564#(<= (+ main_offset 1024) main_length), 11565#(<= (+ main_offset 1020) main_length), 11566#(<= (+ main_offset 1016) main_length), 11567#(<= (+ main_offset 1012) main_length), 11568#(<= (+ main_offset 1008) main_length), 11569#(<= (+ main_offset 1004) main_length), 11570#(<= (+ main_offset 1000) main_length), 11571#(<= (+ main_offset 996) main_length), 11572#(<= (+ main_offset 992) main_length), 11573#(<= (+ main_offset 988) main_length), 11574#(<= (+ main_offset 984) main_length), 11575#(<= (+ main_offset 980) main_length), 11576#(<= (+ main_offset 976) main_length), 11577#(<= (+ main_offset 972) main_length), 11578#(<= (+ main_offset 968) main_length), 11579#(<= (+ main_offset 964) main_length), 11580#(<= (+ main_offset 960) main_length), 11581#(<= (+ main_offset 956) main_length), 11582#(<= (+ main_offset 952) main_length), 11583#(<= (+ main_offset 948) main_length), 11584#(<= (+ main_offset 944) main_length), 11585#(<= (+ main_offset 940) main_length), 11586#(<= (+ main_offset 936) main_length), 11587#(<= (+ main_offset 932) main_length), 11588#(<= (+ main_offset 928) main_length), 11589#(<= (+ main_offset 924) main_length), 11590#(<= (+ main_offset 920) main_length), 11591#(<= (+ main_offset 916) main_length), 11592#(<= (+ main_offset 912) main_length), 11593#(<= (+ main_offset 908) main_length), 11594#(<= (+ main_offset 904) main_length), 11595#(<= (+ main_offset 900) main_length), 11596#(<= (+ main_offset 896) main_length), 11597#(<= (+ main_offset 892) main_length), 11598#(<= (+ main_offset 888) main_length), 11599#(<= (+ main_offset 884) main_length), 11600#(<= (+ main_offset 880) main_length), 11601#(<= (+ main_offset 876) main_length), 11602#(<= (+ main_offset 872) main_length), 11603#(<= (+ main_offset 868) main_length), 11604#(<= (+ main_offset 864) main_length), 11605#(<= (+ main_offset 860) main_length), 11606#(<= (+ main_offset 856) main_length)] [2018-07-23 13:51:49,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2352 backedges. 0 proven. 2352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,423 INFO L450 AbstractCegarLoop]: Interpolant automaton has 51 states [2018-07-23 13:51:49,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2018-07-23 13:51:49,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2018-07-23 13:51:49,424 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 51 states. [2018-07-23 13:51:49,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,470 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2018-07-23 13:51:49,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-07-23 13:51:49,470 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 99 [2018-07-23 13:51:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,471 INFO L225 Difference]: With dead ends: 103 [2018-07-23 13:51:49,471 INFO L226 Difference]: Without dead ends: 102 [2018-07-23 13:51:49,472 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 13:51:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-07-23 13:51:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-07-23 13:51:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-07-23 13:51:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2018-07-23 13:51:49,478 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 99 [2018-07-23 13:51:49,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,478 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2018-07-23 13:51:49,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 51 states. [2018-07-23 13:51:49,478 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2018-07-23 13:51:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-07-23 13:51:49,479 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,479 INFO L357 BasicCegarLoop]: trace histogram [50, 49, 1, 1] [2018-07-23 13:51:49,479 INFO L414 AbstractCegarLoop]: === Iteration 50 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1416429954, now seen corresponding path program 49 times [2018-07-23 13:51:49,480 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,685 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,686 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2018-07-23 13:51:49,686 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,686 INFO L185 omatonBuilderFactory]: Interpolants [12032#(<= (+ main_offset 996) main_length), 12033#(<= (+ main_offset 992) main_length), 12034#(<= (+ main_offset 988) main_length), 12035#(<= (+ main_offset 984) main_length), 12036#(<= (+ main_offset 980) main_length), 12037#(<= (+ main_offset 976) main_length), 12038#(<= (+ main_offset 972) main_length), 12039#(<= (+ main_offset 968) main_length), 12040#(<= (+ main_offset 964) main_length), 12041#(<= (+ main_offset 960) main_length), 12042#(<= (+ main_offset 956) main_length), 12043#(<= (+ main_offset 952) main_length), 12044#(<= (+ main_offset 948) main_length), 12045#(<= (+ main_offset 944) main_length), 12046#(<= (+ main_offset 940) main_length), 12047#(<= (+ main_offset 936) main_length), 12048#(<= (+ main_offset 932) main_length), 12049#(<= (+ main_offset 928) main_length), 12050#(<= (+ main_offset 924) main_length), 12051#(<= (+ main_offset 920) main_length), 12052#(<= (+ main_offset 916) main_length), 12053#(<= (+ main_offset 912) main_length), 12054#(<= (+ main_offset 908) main_length), 12055#(<= (+ main_offset 904) main_length), 12056#(<= (+ main_offset 900) main_length), 12057#(<= (+ main_offset 896) main_length), 12058#(<= (+ main_offset 892) main_length), 12059#(<= (+ main_offset 888) main_length), 12060#(<= (+ main_offset 884) main_length), 12061#(<= (+ main_offset 880) main_length), 12062#(<= (+ main_offset 876) main_length), 12063#(<= (+ main_offset 872) main_length), 12064#(<= (+ main_offset 868) main_length), 12065#(<= (+ main_offset 864) main_length), 12066#(<= (+ main_offset 860) main_length), 12067#(<= (+ main_offset 856) main_length), 12068#(<= (+ main_offset 852) main_length), 12017#true, 12018#false, 12019#(<= (+ main_offset 1048) main_length), 12020#(<= (+ main_offset 1044) main_length), 12021#(<= (+ main_offset 1040) main_length), 12022#(<= (+ main_offset 1036) main_length), 12023#(<= (+ main_offset 1032) main_length), 12024#(<= (+ main_offset 1028) main_length), 12025#(<= (+ main_offset 1024) main_length), 12026#(<= (+ main_offset 1020) main_length), 12027#(<= (+ main_offset 1016) main_length), 12028#(<= (+ main_offset 1012) main_length), 12029#(<= (+ main_offset 1008) main_length), 12030#(<= (+ main_offset 1004) main_length), 12031#(<= (+ main_offset 1000) main_length)] [2018-07-23 13:51:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2450 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,687 INFO L450 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-07-23 13:51:49,688 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-07-23 13:51:49,688 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 13:51:49,688 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand 52 states. [2018-07-23 13:51:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:49,737 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2018-07-23 13:51:49,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-23 13:51:49,738 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 101 [2018-07-23 13:51:49,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:49,739 INFO L225 Difference]: With dead ends: 105 [2018-07-23 13:51:49,739 INFO L226 Difference]: Without dead ends: 104 [2018-07-23 13:51:49,740 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 13:51:49,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-07-23 13:51:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2018-07-23 13:51:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-07-23 13:51:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2018-07-23 13:51:49,744 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 101 [2018-07-23 13:51:49,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:49,745 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2018-07-23 13:51:49,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-07-23 13:51:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2018-07-23 13:51:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-07-23 13:51:49,746 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:49,746 INFO L357 BasicCegarLoop]: trace histogram [51, 50, 1, 1] [2018-07-23 13:51:49,746 INFO L414 AbstractCegarLoop]: === Iteration 51 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:49,747 INFO L82 PathProgramCache]: Analyzing trace with hash -315445948, now seen corresponding path program 50 times [2018-07-23 13:51:49,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:49,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,962 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:49,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2018-07-23 13:51:49,963 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:49,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,963 INFO L185 omatonBuilderFactory]: Interpolants [12487#true, 12488#false, 12489#(<= (+ main_offset 1048) main_length), 12490#(<= (+ main_offset 1044) main_length), 12491#(<= (+ main_offset 1040) main_length), 12492#(<= (+ main_offset 1036) main_length), 12493#(<= (+ main_offset 1032) main_length), 12494#(<= (+ main_offset 1028) main_length), 12495#(<= (+ main_offset 1024) main_length), 12496#(<= (+ main_offset 1020) main_length), 12497#(<= (+ main_offset 1016) main_length), 12498#(<= (+ main_offset 1012) main_length), 12499#(<= (+ main_offset 1008) main_length), 12500#(<= (+ main_offset 1004) main_length), 12501#(<= (+ main_offset 1000) main_length), 12502#(<= (+ main_offset 996) main_length), 12503#(<= (+ main_offset 992) main_length), 12504#(<= (+ main_offset 988) main_length), 12505#(<= (+ main_offset 984) main_length), 12506#(<= (+ main_offset 980) main_length), 12507#(<= (+ main_offset 976) main_length), 12508#(<= (+ main_offset 972) main_length), 12509#(<= (+ main_offset 968) main_length), 12510#(<= (+ main_offset 964) main_length), 12511#(<= (+ main_offset 960) main_length), 12512#(<= (+ main_offset 956) main_length), 12513#(<= (+ main_offset 952) main_length), 12514#(<= (+ main_offset 948) main_length), 12515#(<= (+ main_offset 944) main_length), 12516#(<= (+ main_offset 940) main_length), 12517#(<= (+ main_offset 936) main_length), 12518#(<= (+ main_offset 932) main_length), 12519#(<= (+ main_offset 928) main_length), 12520#(<= (+ main_offset 924) main_length), 12521#(<= (+ main_offset 920) main_length), 12522#(<= (+ main_offset 916) main_length), 12523#(<= (+ main_offset 912) main_length), 12524#(<= (+ main_offset 908) main_length), 12525#(<= (+ main_offset 904) main_length), 12526#(<= (+ main_offset 900) main_length), 12527#(<= (+ main_offset 896) main_length), 12528#(<= (+ main_offset 892) main_length), 12529#(<= (+ main_offset 888) main_length), 12530#(<= (+ main_offset 884) main_length), 12531#(<= (+ main_offset 880) main_length), 12532#(<= (+ main_offset 876) main_length), 12533#(<= (+ main_offset 872) main_length), 12534#(<= (+ main_offset 868) main_length), 12535#(<= (+ main_offset 864) main_length), 12536#(<= (+ main_offset 860) main_length), 12537#(<= (+ main_offset 856) main_length), 12538#(<= (+ main_offset 852) main_length), 12539#(<= (+ main_offset 848) main_length)] [2018-07-23 13:51:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2550 backedges. 0 proven. 2550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:49,964 INFO L450 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-07-23 13:51:49,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-07-23 13:51:49,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2018-07-23 13:51:49,965 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 53 states. [2018-07-23 13:51:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,027 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2018-07-23 13:51:50,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-07-23 13:51:50,028 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 103 [2018-07-23 13:51:50,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,029 INFO L225 Difference]: With dead ends: 107 [2018-07-23 13:51:50,029 INFO L226 Difference]: Without dead ends: 106 [2018-07-23 13:51:50,029 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 13:51:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-07-23 13:51:50,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2018-07-23 13:51:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-07-23 13:51:50,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2018-07-23 13:51:50,038 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 103 [2018-07-23 13:51:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,038 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2018-07-23 13:51:50,039 INFO L472 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-07-23 13:51:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2018-07-23 13:51:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-07-23 13:51:50,041 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,041 INFO L357 BasicCegarLoop]: trace histogram [52, 51, 1, 1] [2018-07-23 13:51:50,041 INFO L414 AbstractCegarLoop]: === Iteration 52 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1799123078, now seen corresponding path program 51 times [2018-07-23 13:51:50,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,276 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:50,276 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2018-07-23 13:51:50,277 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:50,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,277 INFO L185 omatonBuilderFactory]: Interpolants [12966#true, 12967#false, 12968#(<= (+ main_offset 1048) main_length), 12969#(<= (+ main_offset 1044) main_length), 12970#(<= (+ main_offset 1040) main_length), 12971#(<= (+ main_offset 1036) main_length), 12972#(<= (+ main_offset 1032) main_length), 12973#(<= (+ main_offset 1028) main_length), 12974#(<= (+ main_offset 1024) main_length), 12975#(<= (+ main_offset 1020) main_length), 12976#(<= (+ main_offset 1016) main_length), 12977#(<= (+ main_offset 1012) main_length), 12978#(<= (+ main_offset 1008) main_length), 12979#(<= (+ main_offset 1004) main_length), 12980#(<= (+ main_offset 1000) main_length), 12981#(<= (+ main_offset 996) main_length), 12982#(<= (+ main_offset 992) main_length), 12983#(<= (+ main_offset 988) main_length), 12984#(<= (+ main_offset 984) main_length), 12985#(<= (+ main_offset 980) main_length), 12986#(<= (+ main_offset 976) main_length), 12987#(<= (+ main_offset 972) main_length), 12988#(<= (+ main_offset 968) main_length), 12989#(<= (+ main_offset 964) main_length), 12990#(<= (+ main_offset 960) main_length), 12991#(<= (+ main_offset 956) main_length), 12992#(<= (+ main_offset 952) main_length), 12993#(<= (+ main_offset 948) main_length), 12994#(<= (+ main_offset 944) main_length), 12995#(<= (+ main_offset 940) main_length), 12996#(<= (+ main_offset 936) main_length), 12997#(<= (+ main_offset 932) main_length), 12998#(<= (+ main_offset 928) main_length), 12999#(<= (+ main_offset 924) main_length), 13000#(<= (+ main_offset 920) main_length), 13001#(<= (+ main_offset 916) main_length), 13002#(<= (+ main_offset 912) main_length), 13003#(<= (+ main_offset 908) main_length), 13004#(<= (+ main_offset 904) main_length), 13005#(<= (+ main_offset 900) main_length), 13006#(<= (+ main_offset 896) main_length), 13007#(<= (+ main_offset 892) main_length), 13008#(<= (+ main_offset 888) main_length), 13009#(<= (+ main_offset 884) main_length), 13010#(<= (+ main_offset 880) main_length), 13011#(<= (+ main_offset 876) main_length), 13012#(<= (+ main_offset 872) main_length), 13013#(<= (+ main_offset 868) main_length), 13014#(<= (+ main_offset 864) main_length), 13015#(<= (+ main_offset 860) main_length), 13016#(<= (+ main_offset 856) main_length), 13017#(<= (+ main_offset 852) main_length), 13018#(<= (+ main_offset 848) main_length), 13019#(<= (+ main_offset 844) main_length)] [2018-07-23 13:51:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2652 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,278 INFO L450 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-07-23 13:51:50,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-07-23 13:51:50,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2018-07-23 13:51:50,279 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand 54 states. [2018-07-23 13:51:50,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,332 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-07-23 13:51:50,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-07-23 13:51:50,332 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 105 [2018-07-23 13:51:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,333 INFO L225 Difference]: With dead ends: 109 [2018-07-23 13:51:50,333 INFO L226 Difference]: Without dead ends: 108 [2018-07-23 13:51:50,334 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 13:51:50,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-07-23 13:51:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-07-23 13:51:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-07-23 13:51:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-07-23 13:51:50,340 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 105 [2018-07-23 13:51:50,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,340 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-07-23 13:51:50,340 INFO L472 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-07-23 13:51:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-07-23 13:51:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-23 13:51:50,341 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,342 INFO L357 BasicCegarLoop]: trace histogram [53, 52, 1, 1] [2018-07-23 13:51:50,342 INFO L414 AbstractCegarLoop]: === Iteration 53 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1914541240, now seen corresponding path program 52 times [2018-07-23 13:51:50,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,578 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:50,579 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2018-07-23 13:51:50,579 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:50,579 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 13:51:50,580 INFO L185 omatonBuilderFactory]: Interpolants [13454#true, 13455#false, 13456#(<= (+ main_offset 1048) main_length), 13457#(<= (+ main_offset 1044) main_length), 13458#(<= (+ main_offset 1040) main_length), 13459#(<= (+ main_offset 1036) main_length), 13460#(<= (+ main_offset 1032) main_length), 13461#(<= (+ main_offset 1028) main_length), 13462#(<= (+ main_offset 1024) main_length), 13463#(<= (+ main_offset 1020) main_length), 13464#(<= (+ main_offset 1016) main_length), 13465#(<= (+ main_offset 1012) main_length), 13466#(<= (+ main_offset 1008) main_length), 13467#(<= (+ main_offset 1004) main_length), 13468#(<= (+ main_offset 1000) main_length), 13469#(<= (+ main_offset 996) main_length), 13470#(<= (+ main_offset 992) main_length), 13471#(<= (+ main_offset 988) main_length), 13472#(<= (+ main_offset 984) main_length), 13473#(<= (+ main_offset 980) main_length), 13474#(<= (+ main_offset 976) main_length), 13475#(<= (+ main_offset 972) main_length), 13476#(<= (+ main_offset 968) main_length), 13477#(<= (+ main_offset 964) main_length), 13478#(<= (+ main_offset 960) main_length), 13479#(<= (+ main_offset 956) main_length), 13480#(<= (+ main_offset 952) main_length), 13481#(<= (+ main_offset 948) main_length), 13482#(<= (+ main_offset 944) main_length), 13483#(<= (+ main_offset 940) main_length), 13484#(<= (+ main_offset 936) main_length), 13485#(<= (+ main_offset 932) main_length), 13486#(<= (+ main_offset 928) main_length), 13487#(<= (+ main_offset 924) main_length), 13488#(<= (+ main_offset 920) main_length), 13489#(<= (+ main_offset 916) main_length), 13490#(<= (+ main_offset 912) main_length), 13491#(<= (+ main_offset 908) main_length), 13492#(<= (+ main_offset 904) main_length), 13493#(<= (+ main_offset 900) main_length), 13494#(<= (+ main_offset 896) main_length), 13495#(<= (+ main_offset 892) main_length), 13496#(<= (+ main_offset 888) main_length), 13497#(<= (+ main_offset 884) main_length), 13498#(<= (+ main_offset 880) main_length), 13499#(<= (+ main_offset 876) main_length), 13500#(<= (+ main_offset 872) main_length), 13501#(<= (+ main_offset 868) main_length), 13502#(<= (+ main_offset 864) main_length), 13503#(<= (+ main_offset 860) main_length), 13504#(<= (+ main_offset 856) main_length), 13505#(<= (+ main_offset 852) main_length), 13506#(<= (+ main_offset 848) main_length), 13507#(<= (+ main_offset 844) main_length), 13508#(<= (+ main_offset 840) main_length)] [2018-07-23 13:51:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2756 backedges. 0 proven. 2756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-07-23 13:51:50,582 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-07-23 13:51:50,582 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2018-07-23 13:51:50,582 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 55 states. [2018-07-23 13:51:50,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:50,651 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2018-07-23 13:51:50,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-23 13:51:50,651 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 107 [2018-07-23 13:51:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:50,652 INFO L225 Difference]: With dead ends: 111 [2018-07-23 13:51:50,652 INFO L226 Difference]: Without dead ends: 110 [2018-07-23 13:51:50,653 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 13:51:50,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-07-23 13:51:50,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2018-07-23 13:51:50,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-23 13:51:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2018-07-23 13:51:50,658 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 107 [2018-07-23 13:51:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:50,658 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2018-07-23 13:51:50,659 INFO L472 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-07-23 13:51:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2018-07-23 13:51:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-23 13:51:50,660 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:50,660 INFO L357 BasicCegarLoop]: trace histogram [54, 53, 1, 1] [2018-07-23 13:51:50,660 INFO L414 AbstractCegarLoop]: === Iteration 54 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:50,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1628127862, now seen corresponding path program 53 times [2018-07-23 13:51:50,663 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:50,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,927 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:50,927 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-07-23 13:51:50,927 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,928 INFO L185 omatonBuilderFactory]: Interpolants [13952#false, 13953#(<= (+ main_offset 1048) main_length), 13954#(<= (+ main_offset 1044) main_length), 13955#(<= (+ main_offset 1040) main_length), 13956#(<= (+ main_offset 1036) main_length), 13957#(<= (+ main_offset 1032) main_length), 13958#(<= (+ main_offset 1028) main_length), 13959#(<= (+ main_offset 1024) main_length), 13960#(<= (+ main_offset 1020) main_length), 13961#(<= (+ main_offset 1016) main_length), 13962#(<= (+ main_offset 1012) main_length), 13963#(<= (+ main_offset 1008) main_length), 13964#(<= (+ main_offset 1004) main_length), 13965#(<= (+ main_offset 1000) main_length), 13966#(<= (+ main_offset 996) main_length), 13967#(<= (+ main_offset 992) main_length), 13968#(<= (+ main_offset 988) main_length), 13969#(<= (+ main_offset 984) main_length), 13970#(<= (+ main_offset 980) main_length), 13971#(<= (+ main_offset 976) main_length), 13972#(<= (+ main_offset 972) main_length), 13973#(<= (+ main_offset 968) main_length), 13974#(<= (+ main_offset 964) main_length), 13975#(<= (+ main_offset 960) main_length), 13976#(<= (+ main_offset 956) main_length), 13977#(<= (+ main_offset 952) main_length), 13978#(<= (+ main_offset 948) main_length), 13979#(<= (+ main_offset 944) main_length), 13980#(<= (+ main_offset 940) main_length), 13981#(<= (+ main_offset 936) main_length), 13982#(<= (+ main_offset 932) main_length), 13983#(<= (+ main_offset 928) main_length), 13984#(<= (+ main_offset 924) main_length), 13985#(<= (+ main_offset 920) main_length), 13986#(<= (+ main_offset 916) main_length), 13987#(<= (+ main_offset 912) main_length), 13988#(<= (+ main_offset 908) main_length), 13989#(<= (+ main_offset 904) main_length), 13990#(<= (+ main_offset 900) main_length), 13991#(<= (+ main_offset 896) main_length), 13992#(<= (+ main_offset 892) main_length), 13993#(<= (+ main_offset 888) main_length), 13994#(<= (+ main_offset 884) main_length), 13995#(<= (+ main_offset 880) main_length), 13996#(<= (+ main_offset 876) main_length), 13997#(<= (+ main_offset 872) main_length), 13998#(<= (+ main_offset 868) main_length), 13999#(<= (+ main_offset 864) main_length), 14000#(<= (+ main_offset 860) main_length), 14001#(<= (+ main_offset 856) main_length), 14002#(<= (+ main_offset 852) main_length), 14003#(<= (+ main_offset 848) main_length), 14004#(<= (+ main_offset 844) main_length), 14005#(<= (+ main_offset 840) main_length), 14006#(<= (+ main_offset 836) main_length), 13951#true] [2018-07-23 13:51:50,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:50,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 56 states [2018-07-23 13:51:50,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2018-07-23 13:51:50,930 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:50,930 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand 56 states. [2018-07-23 13:51:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:51,004 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2018-07-23 13:51:51,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-07-23 13:51:51,005 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 109 [2018-07-23 13:51:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:51,006 INFO L225 Difference]: With dead ends: 113 [2018-07-23 13:51:51,006 INFO L226 Difference]: Without dead ends: 112 [2018-07-23 13:51:51,007 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2018-07-23 13:51:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-07-23 13:51:51,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-07-23 13:51:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-07-23 13:51:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-07-23 13:51:51,013 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 109 [2018-07-23 13:51:51,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:51,013 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-07-23 13:51:51,013 INFO L472 AbstractCegarLoop]: Interpolant automaton has 56 states. [2018-07-23 13:51:51,014 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-07-23 13:51:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-07-23 13:51:51,015 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:51,015 INFO L357 BasicCegarLoop]: trace histogram [55, 54, 1, 1] [2018-07-23 13:51:51,015 INFO L414 AbstractCegarLoop]: === Iteration 55 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:51,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1262778548, now seen corresponding path program 54 times [2018-07-23 13:51:51,015 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,347 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:51,347 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2018-07-23 13:51:51,348 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:51,348 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 13:51:51,349 INFO L185 omatonBuilderFactory]: Interpolants [14464#(<= (+ main_offset 1028) main_length), 14465#(<= (+ main_offset 1024) main_length), 14466#(<= (+ main_offset 1020) main_length), 14467#(<= (+ main_offset 1016) main_length), 14468#(<= (+ main_offset 1012) main_length), 14469#(<= (+ main_offset 1008) main_length), 14470#(<= (+ main_offset 1004) main_length), 14471#(<= (+ main_offset 1000) main_length), 14472#(<= (+ main_offset 996) main_length), 14473#(<= (+ main_offset 992) main_length), 14474#(<= (+ main_offset 988) main_length), 14475#(<= (+ main_offset 984) main_length), 14476#(<= (+ main_offset 980) main_length), 14477#(<= (+ main_offset 976) main_length), 14478#(<= (+ main_offset 972) main_length), 14479#(<= (+ main_offset 968) main_length), 14480#(<= (+ main_offset 964) main_length), 14481#(<= (+ main_offset 960) main_length), 14482#(<= (+ main_offset 956) main_length), 14483#(<= (+ main_offset 952) main_length), 14484#(<= (+ main_offset 948) main_length), 14485#(<= (+ main_offset 944) main_length), 14486#(<= (+ main_offset 940) main_length), 14487#(<= (+ main_offset 936) main_length), 14488#(<= (+ main_offset 932) main_length), 14489#(<= (+ main_offset 928) main_length), 14490#(<= (+ main_offset 924) main_length), 14491#(<= (+ main_offset 920) main_length), 14492#(<= (+ main_offset 916) main_length), 14493#(<= (+ main_offset 912) main_length), 14494#(<= (+ main_offset 908) main_length), 14495#(<= (+ main_offset 904) main_length), 14496#(<= (+ main_offset 900) main_length), 14497#(<= (+ main_offset 896) main_length), 14498#(<= (+ main_offset 892) main_length), 14499#(<= (+ main_offset 888) main_length), 14500#(<= (+ main_offset 884) main_length), 14501#(<= (+ main_offset 880) main_length), 14502#(<= (+ main_offset 876) main_length), 14503#(<= (+ main_offset 872) main_length), 14504#(<= (+ main_offset 868) main_length), 14505#(<= (+ main_offset 864) main_length), 14506#(<= (+ main_offset 860) main_length), 14507#(<= (+ main_offset 856) main_length), 14508#(<= (+ main_offset 852) main_length), 14509#(<= (+ main_offset 848) main_length), 14510#(<= (+ main_offset 844) main_length), 14511#(<= (+ main_offset 840) main_length), 14512#(<= (+ main_offset 836) main_length), 14513#(<= (+ main_offset 832) main_length), 14457#true, 14458#false, 14459#(<= (+ main_offset 1048) main_length), 14460#(<= (+ main_offset 1044) main_length), 14461#(<= (+ main_offset 1040) main_length), 14462#(<= (+ main_offset 1036) main_length), 14463#(<= (+ main_offset 1032) main_length)] [2018-07-23 13:51:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2970 backedges. 0 proven. 2970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-07-23 13:51:51,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-07-23 13:51:51,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:51,351 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 57 states. [2018-07-23 13:51:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:51,424 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2018-07-23 13:51:51,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-07-23 13:51:51,424 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 111 [2018-07-23 13:51:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:51,426 INFO L225 Difference]: With dead ends: 115 [2018-07-23 13:51:51,426 INFO L226 Difference]: Without dead ends: 114 [2018-07-23 13:51:51,427 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2018-07-23 13:51:51,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-07-23 13:51:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-07-23 13:51:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-07-23 13:51:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2018-07-23 13:51:51,433 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 111 [2018-07-23 13:51:51,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:51,434 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2018-07-23 13:51:51,434 INFO L472 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-07-23 13:51:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2018-07-23 13:51:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-23 13:51:51,435 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:51,436 INFO L357 BasicCegarLoop]: trace histogram [56, 55, 1, 1] [2018-07-23 13:51:51,436 INFO L414 AbstractCegarLoop]: === Iteration 56 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:51,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1945561230, now seen corresponding path program 55 times [2018-07-23 13:51:51,436 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,751 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:51,751 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2018-07-23 13:51:51,752 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,752 INFO L185 omatonBuilderFactory]: Interpolants [14976#(<= (+ main_offset 1040) main_length), 14977#(<= (+ main_offset 1036) main_length), 14978#(<= (+ main_offset 1032) main_length), 14979#(<= (+ main_offset 1028) main_length), 14980#(<= (+ main_offset 1024) main_length), 14981#(<= (+ main_offset 1020) main_length), 14982#(<= (+ main_offset 1016) main_length), 14983#(<= (+ main_offset 1012) main_length), 14984#(<= (+ main_offset 1008) main_length), 14985#(<= (+ main_offset 1004) main_length), 14986#(<= (+ main_offset 1000) main_length), 14987#(<= (+ main_offset 996) main_length), 14988#(<= (+ main_offset 992) main_length), 14989#(<= (+ main_offset 988) main_length), 14990#(<= (+ main_offset 984) main_length), 14991#(<= (+ main_offset 980) main_length), 14992#(<= (+ main_offset 976) main_length), 14993#(<= (+ main_offset 972) main_length), 14994#(<= (+ main_offset 968) main_length), 14995#(<= (+ main_offset 964) main_length), 14996#(<= (+ main_offset 960) main_length), 14997#(<= (+ main_offset 956) main_length), 14998#(<= (+ main_offset 952) main_length), 14999#(<= (+ main_offset 948) main_length), 15000#(<= (+ main_offset 944) main_length), 15001#(<= (+ main_offset 940) main_length), 15002#(<= (+ main_offset 936) main_length), 15003#(<= (+ main_offset 932) main_length), 15004#(<= (+ main_offset 928) main_length), 15005#(<= (+ main_offset 924) main_length), 15006#(<= (+ main_offset 920) main_length), 15007#(<= (+ main_offset 916) main_length), 15008#(<= (+ main_offset 912) main_length), 15009#(<= (+ main_offset 908) main_length), 15010#(<= (+ main_offset 904) main_length), 15011#(<= (+ main_offset 900) main_length), 15012#(<= (+ main_offset 896) main_length), 15013#(<= (+ main_offset 892) main_length), 15014#(<= (+ main_offset 888) main_length), 15015#(<= (+ main_offset 884) main_length), 15016#(<= (+ main_offset 880) main_length), 15017#(<= (+ main_offset 876) main_length), 15018#(<= (+ main_offset 872) main_length), 15019#(<= (+ main_offset 868) main_length), 15020#(<= (+ main_offset 864) main_length), 15021#(<= (+ main_offset 860) main_length), 15022#(<= (+ main_offset 856) main_length), 15023#(<= (+ main_offset 852) main_length), 15024#(<= (+ main_offset 848) main_length), 15025#(<= (+ main_offset 844) main_length), 15026#(<= (+ main_offset 840) main_length), 15027#(<= (+ main_offset 836) main_length), 15028#(<= (+ main_offset 832) main_length), 15029#(<= (+ main_offset 828) main_length), 14972#true, 14973#false, 14974#(<= (+ main_offset 1048) main_length), 14975#(<= (+ main_offset 1044) main_length)] [2018-07-23 13:51:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3080 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:51,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-07-23 13:51:51,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-07-23 13:51:51,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:51,754 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand 58 states. [2018-07-23 13:51:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:51,817 INFO L93 Difference]: Finished difference Result 117 states and 117 transitions. [2018-07-23 13:51:51,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-07-23 13:51:51,818 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 113 [2018-07-23 13:51:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:51,819 INFO L225 Difference]: With dead ends: 117 [2018-07-23 13:51:51,819 INFO L226 Difference]: Without dead ends: 116 [2018-07-23 13:51:51,819 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2018-07-23 13:51:51,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-07-23 13:51:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-07-23 13:51:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-07-23 13:51:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2018-07-23 13:51:51,824 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 113 [2018-07-23 13:51:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:51,825 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2018-07-23 13:51:51,825 INFO L472 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-07-23 13:51:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2018-07-23 13:51:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-23 13:51:51,826 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:51,826 INFO L357 BasicCegarLoop]: trace histogram [57, 56, 1, 1] [2018-07-23 13:51:51,826 INFO L414 AbstractCegarLoop]: === Iteration 57 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:51,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1373569360, now seen corresponding path program 56 times [2018-07-23 13:51:51,827 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,053 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,053 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2018-07-23 13:51:52,053 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,054 INFO L185 omatonBuilderFactory]: Interpolants [15496#true, 15497#false, 15498#(<= (+ main_offset 1048) main_length), 15499#(<= (+ main_offset 1044) main_length), 15500#(<= (+ main_offset 1040) main_length), 15501#(<= (+ main_offset 1036) main_length), 15502#(<= (+ main_offset 1032) main_length), 15503#(<= (+ main_offset 1028) main_length), 15504#(<= (+ main_offset 1024) main_length), 15505#(<= (+ main_offset 1020) main_length), 15506#(<= (+ main_offset 1016) main_length), 15507#(<= (+ main_offset 1012) main_length), 15508#(<= (+ main_offset 1008) main_length), 15509#(<= (+ main_offset 1004) main_length), 15510#(<= (+ main_offset 1000) main_length), 15511#(<= (+ main_offset 996) main_length), 15512#(<= (+ main_offset 992) main_length), 15513#(<= (+ main_offset 988) main_length), 15514#(<= (+ main_offset 984) main_length), 15515#(<= (+ main_offset 980) main_length), 15516#(<= (+ main_offset 976) main_length), 15517#(<= (+ main_offset 972) main_length), 15518#(<= (+ main_offset 968) main_length), 15519#(<= (+ main_offset 964) main_length), 15520#(<= (+ main_offset 960) main_length), 15521#(<= (+ main_offset 956) main_length), 15522#(<= (+ main_offset 952) main_length), 15523#(<= (+ main_offset 948) main_length), 15524#(<= (+ main_offset 944) main_length), 15525#(<= (+ main_offset 940) main_length), 15526#(<= (+ main_offset 936) main_length), 15527#(<= (+ main_offset 932) main_length), 15528#(<= (+ main_offset 928) main_length), 15529#(<= (+ main_offset 924) main_length), 15530#(<= (+ main_offset 920) main_length), 15531#(<= (+ main_offset 916) main_length), 15532#(<= (+ main_offset 912) main_length), 15533#(<= (+ main_offset 908) main_length), 15534#(<= (+ main_offset 904) main_length), 15535#(<= (+ main_offset 900) main_length), 15536#(<= (+ main_offset 896) main_length), 15537#(<= (+ main_offset 892) main_length), 15538#(<= (+ main_offset 888) main_length), 15539#(<= (+ main_offset 884) main_length), 15540#(<= (+ main_offset 880) main_length), 15541#(<= (+ main_offset 876) main_length), 15542#(<= (+ main_offset 872) main_length), 15543#(<= (+ main_offset 868) main_length), 15544#(<= (+ main_offset 864) main_length), 15545#(<= (+ main_offset 860) main_length), 15546#(<= (+ main_offset 856) main_length), 15547#(<= (+ main_offset 852) main_length), 15548#(<= (+ main_offset 848) main_length), 15549#(<= (+ main_offset 844) main_length), 15550#(<= (+ main_offset 840) main_length), 15551#(<= (+ main_offset 836) main_length), 15552#(<= (+ main_offset 832) main_length), 15553#(<= (+ main_offset 828) main_length), 15554#(<= (+ main_offset 824) main_length)] [2018-07-23 13:51:52,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 3192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,055 INFO L450 AbstractCegarLoop]: Interpolant automaton has 59 states [2018-07-23 13:51:52,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2018-07-23 13:51:52,056 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2018-07-23 13:51:52,056 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand 59 states. [2018-07-23 13:51:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,125 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2018-07-23 13:51:52,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-07-23 13:51:52,126 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 115 [2018-07-23 13:51:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,126 INFO L225 Difference]: With dead ends: 119 [2018-07-23 13:51:52,127 INFO L226 Difference]: Without dead ends: 118 [2018-07-23 13:51:52,127 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 13:51:52,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-07-23 13:51:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-07-23 13:51:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-07-23 13:51:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2018-07-23 13:51:52,132 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 115 [2018-07-23 13:51:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,133 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2018-07-23 13:51:52,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 59 states. [2018-07-23 13:51:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2018-07-23 13:51:52,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-23 13:51:52,134 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,134 INFO L357 BasicCegarLoop]: trace histogram [58, 57, 1, 1] [2018-07-23 13:51:52,134 INFO L414 AbstractCegarLoop]: === Iteration 58 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1445196178, now seen corresponding path program 57 times [2018-07-23 13:51:52,134 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,370 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2018-07-23 13:51:52,370 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,370 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 13:51:52,371 INFO L185 omatonBuilderFactory]: Interpolants [16029#true, 16030#false, 16031#(<= (+ main_offset 1048) main_length), 16032#(<= (+ main_offset 1044) main_length), 16033#(<= (+ main_offset 1040) main_length), 16034#(<= (+ main_offset 1036) main_length), 16035#(<= (+ main_offset 1032) main_length), 16036#(<= (+ main_offset 1028) main_length), 16037#(<= (+ main_offset 1024) main_length), 16038#(<= (+ main_offset 1020) main_length), 16039#(<= (+ main_offset 1016) main_length), 16040#(<= (+ main_offset 1012) main_length), 16041#(<= (+ main_offset 1008) main_length), 16042#(<= (+ main_offset 1004) main_length), 16043#(<= (+ main_offset 1000) main_length), 16044#(<= (+ main_offset 996) main_length), 16045#(<= (+ main_offset 992) main_length), 16046#(<= (+ main_offset 988) main_length), 16047#(<= (+ main_offset 984) main_length), 16048#(<= (+ main_offset 980) main_length), 16049#(<= (+ main_offset 976) main_length), 16050#(<= (+ main_offset 972) main_length), 16051#(<= (+ main_offset 968) main_length), 16052#(<= (+ main_offset 964) main_length), 16053#(<= (+ main_offset 960) main_length), 16054#(<= (+ main_offset 956) main_length), 16055#(<= (+ main_offset 952) main_length), 16056#(<= (+ main_offset 948) main_length), 16057#(<= (+ main_offset 944) main_length), 16058#(<= (+ main_offset 940) main_length), 16059#(<= (+ main_offset 936) main_length), 16060#(<= (+ main_offset 932) main_length), 16061#(<= (+ main_offset 928) main_length), 16062#(<= (+ main_offset 924) main_length), 16063#(<= (+ main_offset 920) main_length), 16064#(<= (+ main_offset 916) main_length), 16065#(<= (+ main_offset 912) main_length), 16066#(<= (+ main_offset 908) main_length), 16067#(<= (+ main_offset 904) main_length), 16068#(<= (+ main_offset 900) main_length), 16069#(<= (+ main_offset 896) main_length), 16070#(<= (+ main_offset 892) main_length), 16071#(<= (+ main_offset 888) main_length), 16072#(<= (+ main_offset 884) main_length), 16073#(<= (+ main_offset 880) main_length), 16074#(<= (+ main_offset 876) main_length), 16075#(<= (+ main_offset 872) main_length), 16076#(<= (+ main_offset 868) main_length), 16077#(<= (+ main_offset 864) main_length), 16078#(<= (+ main_offset 860) main_length), 16079#(<= (+ main_offset 856) main_length), 16080#(<= (+ main_offset 852) main_length), 16081#(<= (+ main_offset 848) main_length), 16082#(<= (+ main_offset 844) main_length), 16083#(<= (+ main_offset 840) main_length), 16084#(<= (+ main_offset 836) main_length), 16085#(<= (+ main_offset 832) main_length), 16086#(<= (+ main_offset 828) main_length), 16087#(<= (+ main_offset 824) main_length), 16088#(<= (+ main_offset 820) main_length)] [2018-07-23 13:51:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3306 backedges. 0 proven. 3306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,372 INFO L450 AbstractCegarLoop]: Interpolant automaton has 60 states [2018-07-23 13:51:52,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2018-07-23 13:51:52,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2018-07-23 13:51:52,373 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 60 states. [2018-07-23 13:51:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,436 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2018-07-23 13:51:52,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-07-23 13:51:52,437 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 117 [2018-07-23 13:51:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,438 INFO L225 Difference]: With dead ends: 121 [2018-07-23 13:51:52,438 INFO L226 Difference]: Without dead ends: 120 [2018-07-23 13:51:52,438 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 13:51:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-07-23 13:51:52,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-07-23 13:51:52,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-07-23 13:51:52,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2018-07-23 13:51:52,445 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 117 [2018-07-23 13:51:52,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,445 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2018-07-23 13:51:52,445 INFO L472 AbstractCegarLoop]: Interpolant automaton has 60 states. [2018-07-23 13:51:52,445 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2018-07-23 13:51:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-07-23 13:51:52,446 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,446 INFO L357 BasicCegarLoop]: trace histogram [59, 58, 1, 1] [2018-07-23 13:51:52,447 INFO L414 AbstractCegarLoop]: === Iteration 59 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1559091540, now seen corresponding path program 58 times [2018-07-23 13:51:52,447 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:52,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3422 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,697 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:52,697 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2018-07-23 13:51:52,697 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,698 INFO L185 omatonBuilderFactory]: Interpolants [16571#true, 16572#false, 16573#(<= (+ main_offset 1048) main_length), 16574#(<= (+ main_offset 1044) main_length), 16575#(<= (+ main_offset 1040) main_length), 16576#(<= (+ main_offset 1036) main_length), 16577#(<= (+ main_offset 1032) main_length), 16578#(<= (+ main_offset 1028) main_length), 16579#(<= (+ main_offset 1024) main_length), 16580#(<= (+ main_offset 1020) main_length), 16581#(<= (+ main_offset 1016) main_length), 16582#(<= (+ main_offset 1012) main_length), 16583#(<= (+ main_offset 1008) main_length), 16584#(<= (+ main_offset 1004) main_length), 16585#(<= (+ main_offset 1000) main_length), 16586#(<= (+ main_offset 996) main_length), 16587#(<= (+ main_offset 992) main_length), 16588#(<= (+ main_offset 988) main_length), 16589#(<= (+ main_offset 984) main_length), 16590#(<= (+ main_offset 980) main_length), 16591#(<= (+ main_offset 976) main_length), 16592#(<= (+ main_offset 972) main_length), 16593#(<= (+ main_offset 968) main_length), 16594#(<= (+ main_offset 964) main_length), 16595#(<= (+ main_offset 960) main_length), 16596#(<= (+ main_offset 956) main_length), 16597#(<= (+ main_offset 952) main_length), 16598#(<= (+ main_offset 948) main_length), 16599#(<= (+ main_offset 944) main_length), 16600#(<= (+ main_offset 940) main_length), 16601#(<= (+ main_offset 936) main_length), 16602#(<= (+ main_offset 932) main_length), 16603#(<= (+ main_offset 928) main_length), 16604#(<= (+ main_offset 924) main_length), 16605#(<= (+ main_offset 920) main_length), 16606#(<= (+ main_offset 916) main_length), 16607#(<= (+ main_offset 912) main_length), 16608#(<= (+ main_offset 908) main_length), 16609#(<= (+ main_offset 904) main_length), 16610#(<= (+ main_offset 900) main_length), 16611#(<= (+ main_offset 896) main_length), 16612#(<= (+ main_offset 892) main_length), 16613#(<= (+ main_offset 888) main_length), 16614#(<= (+ main_offset 884) main_length), 16615#(<= (+ main_offset 880) main_length), 16616#(<= (+ main_offset 876) main_length), 16617#(<= (+ main_offset 872) main_length), 16618#(<= (+ main_offset 868) main_length), 16619#(<= (+ main_offset 864) main_length), 16620#(<= (+ main_offset 860) main_length), 16621#(<= (+ main_offset 856) main_length), 16622#(<= (+ main_offset 852) main_length), 16623#(<= (+ main_offset 848) main_length), 16624#(<= (+ main_offset 844) main_length), 16625#(<= (+ main_offset 840) main_length), 16626#(<= (+ main_offset 836) main_length), 16627#(<= (+ main_offset 832) main_length), 16628#(<= (+ main_offset 828) main_length), 16629#(<= (+ main_offset 824) main_length), 16630#(<= (+ main_offset 820) main_length), 16631#(<= (+ main_offset 816) main_length)] [2018-07-23 13:51:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3422 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:52,699 INFO L450 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-07-23 13:51:52,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-07-23 13:51:52,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2018-07-23 13:51:52,700 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand 61 states. [2018-07-23 13:51:52,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:52,772 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2018-07-23 13:51:52,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-07-23 13:51:52,773 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 119 [2018-07-23 13:51:52,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:52,774 INFO L225 Difference]: With dead ends: 123 [2018-07-23 13:51:52,774 INFO L226 Difference]: Without dead ends: 122 [2018-07-23 13:51:52,774 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 13:51:52,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-07-23 13:51:52,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-07-23 13:51:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-07-23 13:51:52,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2018-07-23 13:51:52,779 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 119 [2018-07-23 13:51:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:52,780 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2018-07-23 13:51:52,780 INFO L472 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-07-23 13:51:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2018-07-23 13:51:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-23 13:51:52,781 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:52,781 INFO L357 BasicCegarLoop]: trace histogram [60, 59, 1, 1] [2018-07-23 13:51:52,781 INFO L414 AbstractCegarLoop]: === Iteration 60 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:52,782 INFO L82 PathProgramCache]: Analyzing trace with hash -656615274, now seen corresponding path program 59 times [2018-07-23 13:51:52,782 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,041 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,041 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2018-07-23 13:51:53,042 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,042 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 13:51:53,042 INFO L185 omatonBuilderFactory]: Interpolants [17152#(<= (+ main_offset 936) main_length), 17153#(<= (+ main_offset 932) main_length), 17154#(<= (+ main_offset 928) main_length), 17155#(<= (+ main_offset 924) main_length), 17156#(<= (+ main_offset 920) main_length), 17157#(<= (+ main_offset 916) main_length), 17158#(<= (+ main_offset 912) main_length), 17159#(<= (+ main_offset 908) main_length), 17160#(<= (+ main_offset 904) main_length), 17161#(<= (+ main_offset 900) main_length), 17162#(<= (+ main_offset 896) main_length), 17163#(<= (+ main_offset 892) main_length), 17164#(<= (+ main_offset 888) main_length), 17165#(<= (+ main_offset 884) main_length), 17166#(<= (+ main_offset 880) main_length), 17167#(<= (+ main_offset 876) main_length), 17168#(<= (+ main_offset 872) main_length), 17169#(<= (+ main_offset 868) main_length), 17170#(<= (+ main_offset 864) main_length), 17171#(<= (+ main_offset 860) main_length), 17172#(<= (+ main_offset 856) main_length), 17173#(<= (+ main_offset 852) main_length), 17174#(<= (+ main_offset 848) main_length), 17175#(<= (+ main_offset 844) main_length), 17176#(<= (+ main_offset 840) main_length), 17177#(<= (+ main_offset 836) main_length), 17178#(<= (+ main_offset 832) main_length), 17179#(<= (+ main_offset 828) main_length), 17180#(<= (+ main_offset 824) main_length), 17181#(<= (+ main_offset 820) main_length), 17182#(<= (+ main_offset 816) main_length), 17183#(<= (+ main_offset 812) main_length), 17122#true, 17123#false, 17124#(<= (+ main_offset 1048) main_length), 17125#(<= (+ main_offset 1044) main_length), 17126#(<= (+ main_offset 1040) main_length), 17127#(<= (+ main_offset 1036) main_length), 17128#(<= (+ main_offset 1032) main_length), 17129#(<= (+ main_offset 1028) main_length), 17130#(<= (+ main_offset 1024) main_length), 17131#(<= (+ main_offset 1020) main_length), 17132#(<= (+ main_offset 1016) main_length), 17133#(<= (+ main_offset 1012) main_length), 17134#(<= (+ main_offset 1008) main_length), 17135#(<= (+ main_offset 1004) main_length), 17136#(<= (+ main_offset 1000) main_length), 17137#(<= (+ main_offset 996) main_length), 17138#(<= (+ main_offset 992) main_length), 17139#(<= (+ main_offset 988) main_length), 17140#(<= (+ main_offset 984) main_length), 17141#(<= (+ main_offset 980) main_length), 17142#(<= (+ main_offset 976) main_length), 17143#(<= (+ main_offset 972) main_length), 17144#(<= (+ main_offset 968) main_length), 17145#(<= (+ main_offset 964) main_length), 17146#(<= (+ main_offset 960) main_length), 17147#(<= (+ main_offset 956) main_length), 17148#(<= (+ main_offset 952) main_length), 17149#(<= (+ main_offset 948) main_length), 17150#(<= (+ main_offset 944) main_length), 17151#(<= (+ main_offset 940) main_length)] [2018-07-23 13:51:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 0 proven. 3540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,043 INFO L450 AbstractCegarLoop]: Interpolant automaton has 62 states [2018-07-23 13:51:53,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2018-07-23 13:51:53,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:53,046 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand 62 states. [2018-07-23 13:51:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:53,099 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2018-07-23 13:51:53,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2018-07-23 13:51:53,099 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 121 [2018-07-23 13:51:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:53,100 INFO L225 Difference]: With dead ends: 125 [2018-07-23 13:51:53,100 INFO L226 Difference]: Without dead ends: 124 [2018-07-23 13:51:53,101 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2018-07-23 13:51:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-07-23 13:51:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-07-23 13:51:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-07-23 13:51:53,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2018-07-23 13:51:53,107 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 121 [2018-07-23 13:51:53,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:53,107 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2018-07-23 13:51:53,107 INFO L472 AbstractCegarLoop]: Interpolant automaton has 62 states. [2018-07-23 13:51:53,107 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2018-07-23 13:51:53,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-07-23 13:51:53,108 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:53,108 INFO L357 BasicCegarLoop]: trace histogram [61, 60, 1, 1] [2018-07-23 13:51:53,108 INFO L414 AbstractCegarLoop]: === Iteration 61 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:53,109 INFO L82 PathProgramCache]: Analyzing trace with hash 352915288, now seen corresponding path program 60 times [2018-07-23 13:51:53,109 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,383 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,383 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2018-07-23 13:51:53,383 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,384 INFO L185 omatonBuilderFactory]: Interpolants [17682#true, 17683#false, 17684#(<= (+ main_offset 1048) main_length), 17685#(<= (+ main_offset 1044) main_length), 17686#(<= (+ main_offset 1040) main_length), 17687#(<= (+ main_offset 1036) main_length), 17688#(<= (+ main_offset 1032) main_length), 17689#(<= (+ main_offset 1028) main_length), 17690#(<= (+ main_offset 1024) main_length), 17691#(<= (+ main_offset 1020) main_length), 17692#(<= (+ main_offset 1016) main_length), 17693#(<= (+ main_offset 1012) main_length), 17694#(<= (+ main_offset 1008) main_length), 17695#(<= (+ main_offset 1004) main_length), 17696#(<= (+ main_offset 1000) main_length), 17697#(<= (+ main_offset 996) main_length), 17698#(<= (+ main_offset 992) main_length), 17699#(<= (+ main_offset 988) main_length), 17700#(<= (+ main_offset 984) main_length), 17701#(<= (+ main_offset 980) main_length), 17702#(<= (+ main_offset 976) main_length), 17703#(<= (+ main_offset 972) main_length), 17704#(<= (+ main_offset 968) main_length), 17705#(<= (+ main_offset 964) main_length), 17706#(<= (+ main_offset 960) main_length), 17707#(<= (+ main_offset 956) main_length), 17708#(<= (+ main_offset 952) main_length), 17709#(<= (+ main_offset 948) main_length), 17710#(<= (+ main_offset 944) main_length), 17711#(<= (+ main_offset 940) main_length), 17712#(<= (+ main_offset 936) main_length), 17713#(<= (+ main_offset 932) main_length), 17714#(<= (+ main_offset 928) main_length), 17715#(<= (+ main_offset 924) main_length), 17716#(<= (+ main_offset 920) main_length), 17717#(<= (+ main_offset 916) main_length), 17718#(<= (+ main_offset 912) main_length), 17719#(<= (+ main_offset 908) main_length), 17720#(<= (+ main_offset 904) main_length), 17721#(<= (+ main_offset 900) main_length), 17722#(<= (+ main_offset 896) main_length), 17723#(<= (+ main_offset 892) main_length), 17724#(<= (+ main_offset 888) main_length), 17725#(<= (+ main_offset 884) main_length), 17726#(<= (+ main_offset 880) main_length), 17727#(<= (+ main_offset 876) main_length), 17728#(<= (+ main_offset 872) main_length), 17729#(<= (+ main_offset 868) main_length), 17730#(<= (+ main_offset 864) main_length), 17731#(<= (+ main_offset 860) main_length), 17732#(<= (+ main_offset 856) main_length), 17733#(<= (+ main_offset 852) main_length), 17734#(<= (+ main_offset 848) main_length), 17735#(<= (+ main_offset 844) main_length), 17736#(<= (+ main_offset 840) main_length), 17737#(<= (+ main_offset 836) main_length), 17738#(<= (+ main_offset 832) main_length), 17739#(<= (+ main_offset 828) main_length), 17740#(<= (+ main_offset 824) main_length), 17741#(<= (+ main_offset 820) main_length), 17742#(<= (+ main_offset 816) main_length), 17743#(<= (+ main_offset 812) main_length), 17744#(<= (+ main_offset 808) main_length)] [2018-07-23 13:51:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 0 proven. 3660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,385 INFO L450 AbstractCegarLoop]: Interpolant automaton has 63 states [2018-07-23 13:51:53,385 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2018-07-23 13:51:53,386 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2018-07-23 13:51:53,386 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand 63 states. [2018-07-23 13:51:53,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:53,473 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2018-07-23 13:51:53,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-07-23 13:51:53,473 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 123 [2018-07-23 13:51:53,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:53,474 INFO L225 Difference]: With dead ends: 127 [2018-07-23 13:51:53,475 INFO L226 Difference]: Without dead ends: 126 [2018-07-23 13:51:53,475 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 13:51:53,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2018-07-23 13:51:53,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2018-07-23 13:51:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-07-23 13:51:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2018-07-23 13:51:53,481 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 123 [2018-07-23 13:51:53,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:53,482 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2018-07-23 13:51:53,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 63 states. [2018-07-23 13:51:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2018-07-23 13:51:53,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-23 13:51:53,483 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:53,483 INFO L357 BasicCegarLoop]: trace histogram [62, 61, 1, 1] [2018-07-23 13:51:53,483 INFO L414 AbstractCegarLoop]: === Iteration 62 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:53,484 INFO L82 PathProgramCache]: Analyzing trace with hash -150823526, now seen corresponding path program 61 times [2018-07-23 13:51:53,484 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,789 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:53,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2018-07-23 13:51:53,790 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,790 INFO L185 omatonBuilderFactory]: Interpolants [18304#(<= (+ main_offset 844) main_length), 18305#(<= (+ main_offset 840) main_length), 18306#(<= (+ main_offset 836) main_length), 18307#(<= (+ main_offset 832) main_length), 18308#(<= (+ main_offset 828) main_length), 18309#(<= (+ main_offset 824) main_length), 18310#(<= (+ main_offset 820) main_length), 18311#(<= (+ main_offset 816) main_length), 18312#(<= (+ main_offset 812) main_length), 18313#(<= (+ main_offset 808) main_length), 18314#(<= (+ main_offset 804) main_length), 18251#true, 18252#false, 18253#(<= (+ main_offset 1048) main_length), 18254#(<= (+ main_offset 1044) main_length), 18255#(<= (+ main_offset 1040) main_length), 18256#(<= (+ main_offset 1036) main_length), 18257#(<= (+ main_offset 1032) main_length), 18258#(<= (+ main_offset 1028) main_length), 18259#(<= (+ main_offset 1024) main_length), 18260#(<= (+ main_offset 1020) main_length), 18261#(<= (+ main_offset 1016) main_length), 18262#(<= (+ main_offset 1012) main_length), 18263#(<= (+ main_offset 1008) main_length), 18264#(<= (+ main_offset 1004) main_length), 18265#(<= (+ main_offset 1000) main_length), 18266#(<= (+ main_offset 996) main_length), 18267#(<= (+ main_offset 992) main_length), 18268#(<= (+ main_offset 988) main_length), 18269#(<= (+ main_offset 984) main_length), 18270#(<= (+ main_offset 980) main_length), 18271#(<= (+ main_offset 976) main_length), 18272#(<= (+ main_offset 972) main_length), 18273#(<= (+ main_offset 968) main_length), 18274#(<= (+ main_offset 964) main_length), 18275#(<= (+ main_offset 960) main_length), 18276#(<= (+ main_offset 956) main_length), 18277#(<= (+ main_offset 952) main_length), 18278#(<= (+ main_offset 948) main_length), 18279#(<= (+ main_offset 944) main_length), 18280#(<= (+ main_offset 940) main_length), 18281#(<= (+ main_offset 936) main_length), 18282#(<= (+ main_offset 932) main_length), 18283#(<= (+ main_offset 928) main_length), 18284#(<= (+ main_offset 924) main_length), 18285#(<= (+ main_offset 920) main_length), 18286#(<= (+ main_offset 916) main_length), 18287#(<= (+ main_offset 912) main_length), 18288#(<= (+ main_offset 908) main_length), 18289#(<= (+ main_offset 904) main_length), 18290#(<= (+ main_offset 900) main_length), 18291#(<= (+ main_offset 896) main_length), 18292#(<= (+ main_offset 892) main_length), 18293#(<= (+ main_offset 888) main_length), 18294#(<= (+ main_offset 884) main_length), 18295#(<= (+ main_offset 880) main_length), 18296#(<= (+ main_offset 876) main_length), 18297#(<= (+ main_offset 872) main_length), 18298#(<= (+ main_offset 868) main_length), 18299#(<= (+ main_offset 864) main_length), 18300#(<= (+ main_offset 860) main_length), 18301#(<= (+ main_offset 856) main_length), 18302#(<= (+ main_offset 852) main_length), 18303#(<= (+ main_offset 848) main_length)] [2018-07-23 13:51:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3782 backedges. 0 proven. 3782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:53,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-07-23 13:51:53,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-07-23 13:51:53,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:53,793 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand 64 states. [2018-07-23 13:51:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:53,852 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2018-07-23 13:51:53,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2018-07-23 13:51:53,852 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 125 [2018-07-23 13:51:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:53,853 INFO L225 Difference]: With dead ends: 129 [2018-07-23 13:51:53,853 INFO L226 Difference]: Without dead ends: 128 [2018-07-23 13:51:53,854 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2018-07-23 13:51:53,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-07-23 13:51:53,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-07-23 13:51:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 13:51:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 128 transitions. [2018-07-23 13:51:53,859 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 128 transitions. Word has length 125 [2018-07-23 13:51:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:53,859 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 128 transitions. [2018-07-23 13:51:53,859 INFO L472 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-07-23 13:51:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 128 transitions. [2018-07-23 13:51:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-23 13:51:53,861 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:53,861 INFO L357 BasicCegarLoop]: trace histogram [63, 62, 1, 1] [2018-07-23 13:51:53,861 INFO L414 AbstractCegarLoop]: === Iteration 63 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:53,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1087480668, now seen corresponding path program 62 times [2018-07-23 13:51:53,861 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,111 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:54,111 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2018-07-23 13:51:54,111 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,112 INFO L185 omatonBuilderFactory]: Interpolants [18829#true, 18830#false, 18831#(<= (+ main_offset 1048) main_length), 18832#(<= (+ main_offset 1044) main_length), 18833#(<= (+ main_offset 1040) main_length), 18834#(<= (+ main_offset 1036) main_length), 18835#(<= (+ main_offset 1032) main_length), 18836#(<= (+ main_offset 1028) main_length), 18837#(<= (+ main_offset 1024) main_length), 18838#(<= (+ main_offset 1020) main_length), 18839#(<= (+ main_offset 1016) main_length), 18840#(<= (+ main_offset 1012) main_length), 18841#(<= (+ main_offset 1008) main_length), 18842#(<= (+ main_offset 1004) main_length), 18843#(<= (+ main_offset 1000) main_length), 18844#(<= (+ main_offset 996) main_length), 18845#(<= (+ main_offset 992) main_length), 18846#(<= (+ main_offset 988) main_length), 18847#(<= (+ main_offset 984) main_length), 18848#(<= (+ main_offset 980) main_length), 18849#(<= (+ main_offset 976) main_length), 18850#(<= (+ main_offset 972) main_length), 18851#(<= (+ main_offset 968) main_length), 18852#(<= (+ main_offset 964) main_length), 18853#(<= (+ main_offset 960) main_length), 18854#(<= (+ main_offset 956) main_length), 18855#(<= (+ main_offset 952) main_length), 18856#(<= (+ main_offset 948) main_length), 18857#(<= (+ main_offset 944) main_length), 18858#(<= (+ main_offset 940) main_length), 18859#(<= (+ main_offset 936) main_length), 18860#(<= (+ main_offset 932) main_length), 18861#(<= (+ main_offset 928) main_length), 18862#(<= (+ main_offset 924) main_length), 18863#(<= (+ main_offset 920) main_length), 18864#(<= (+ main_offset 916) main_length), 18865#(<= (+ main_offset 912) main_length), 18866#(<= (+ main_offset 908) main_length), 18867#(<= (+ main_offset 904) main_length), 18868#(<= (+ main_offset 900) main_length), 18869#(<= (+ main_offset 896) main_length), 18870#(<= (+ main_offset 892) main_length), 18871#(<= (+ main_offset 888) main_length), 18872#(<= (+ main_offset 884) main_length), 18873#(<= (+ main_offset 880) main_length), 18874#(<= (+ main_offset 876) main_length), 18875#(<= (+ main_offset 872) main_length), 18876#(<= (+ main_offset 868) main_length), 18877#(<= (+ main_offset 864) main_length), 18878#(<= (+ main_offset 860) main_length), 18879#(<= (+ main_offset 856) main_length), 18880#(<= (+ main_offset 852) main_length), 18881#(<= (+ main_offset 848) main_length), 18882#(<= (+ main_offset 844) main_length), 18883#(<= (+ main_offset 840) main_length), 18884#(<= (+ main_offset 836) main_length), 18885#(<= (+ main_offset 832) main_length), 18886#(<= (+ main_offset 828) main_length), 18887#(<= (+ main_offset 824) main_length), 18888#(<= (+ main_offset 820) main_length), 18889#(<= (+ main_offset 816) main_length), 18890#(<= (+ main_offset 812) main_length), 18891#(<= (+ main_offset 808) main_length), 18892#(<= (+ main_offset 804) main_length), 18893#(<= (+ main_offset 800) main_length)] [2018-07-23 13:51:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 3906 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,113 INFO L450 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-07-23 13:51:54,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-07-23 13:51:54,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2018-07-23 13:51:54,114 INFO L87 Difference]: Start difference. First operand 128 states and 128 transitions. Second operand 65 states. [2018-07-23 13:51:54,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,202 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-07-23 13:51:54,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2018-07-23 13:51:54,202 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 127 [2018-07-23 13:51:54,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,203 INFO L225 Difference]: With dead ends: 131 [2018-07-23 13:51:54,204 INFO L226 Difference]: Without dead ends: 130 [2018-07-23 13:51:54,204 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 13:51:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-07-23 13:51:54,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-07-23 13:51:54,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-07-23 13:51:54,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2018-07-23 13:51:54,210 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 127 [2018-07-23 13:51:54,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,211 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2018-07-23 13:51:54,211 INFO L472 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-07-23 13:51:54,211 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2018-07-23 13:51:54,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-07-23 13:51:54,212 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,212 INFO L357 BasicCegarLoop]: trace histogram [64, 63, 1, 1] [2018-07-23 13:51:54,213 INFO L414 AbstractCegarLoop]: === Iteration 64 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1391870110, now seen corresponding path program 63 times [2018-07-23 13:51:54,213 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,464 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:54,464 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-07-23 13:51:54,464 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,465 INFO L185 omatonBuilderFactory]: Interpolants [19456#(<= (+ main_offset 896) main_length), 19457#(<= (+ main_offset 892) main_length), 19458#(<= (+ main_offset 888) main_length), 19459#(<= (+ main_offset 884) main_length), 19460#(<= (+ main_offset 880) main_length), 19461#(<= (+ main_offset 876) main_length), 19462#(<= (+ main_offset 872) main_length), 19463#(<= (+ main_offset 868) main_length), 19464#(<= (+ main_offset 864) main_length), 19465#(<= (+ main_offset 860) main_length), 19466#(<= (+ main_offset 856) main_length), 19467#(<= (+ main_offset 852) main_length), 19468#(<= (+ main_offset 848) main_length), 19469#(<= (+ main_offset 844) main_length), 19470#(<= (+ main_offset 840) main_length), 19471#(<= (+ main_offset 836) main_length), 19472#(<= (+ main_offset 832) main_length), 19473#(<= (+ main_offset 828) main_length), 19474#(<= (+ main_offset 824) main_length), 19475#(<= (+ main_offset 820) main_length), 19476#(<= (+ main_offset 816) main_length), 19477#(<= (+ main_offset 812) main_length), 19478#(<= (+ main_offset 808) main_length), 19479#(<= (+ main_offset 804) main_length), 19480#(<= (+ main_offset 800) main_length), 19481#(<= (+ main_offset 796) main_length), 19416#true, 19417#false, 19418#(<= (+ main_offset 1048) main_length), 19419#(<= (+ main_offset 1044) main_length), 19420#(<= (+ main_offset 1040) main_length), 19421#(<= (+ main_offset 1036) main_length), 19422#(<= (+ main_offset 1032) main_length), 19423#(<= (+ main_offset 1028) main_length), 19424#(<= (+ main_offset 1024) main_length), 19425#(<= (+ main_offset 1020) main_length), 19426#(<= (+ main_offset 1016) main_length), 19427#(<= (+ main_offset 1012) main_length), 19428#(<= (+ main_offset 1008) main_length), 19429#(<= (+ main_offset 1004) main_length), 19430#(<= (+ main_offset 1000) main_length), 19431#(<= (+ main_offset 996) main_length), 19432#(<= (+ main_offset 992) main_length), 19433#(<= (+ main_offset 988) main_length), 19434#(<= (+ main_offset 984) main_length), 19435#(<= (+ main_offset 980) main_length), 19436#(<= (+ main_offset 976) main_length), 19437#(<= (+ main_offset 972) main_length), 19438#(<= (+ main_offset 968) main_length), 19439#(<= (+ main_offset 964) main_length), 19440#(<= (+ main_offset 960) main_length), 19441#(<= (+ main_offset 956) main_length), 19442#(<= (+ main_offset 952) main_length), 19443#(<= (+ main_offset 948) main_length), 19444#(<= (+ main_offset 944) main_length), 19445#(<= (+ main_offset 940) main_length), 19446#(<= (+ main_offset 936) main_length), 19447#(<= (+ main_offset 932) main_length), 19448#(<= (+ main_offset 928) main_length), 19449#(<= (+ main_offset 924) main_length), 19450#(<= (+ main_offset 920) main_length), 19451#(<= (+ main_offset 916) main_length), 19452#(<= (+ main_offset 912) main_length), 19453#(<= (+ main_offset 908) main_length), 19454#(<= (+ main_offset 904) main_length), 19455#(<= (+ main_offset 900) main_length)] [2018-07-23 13:51:54,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,469 INFO L450 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-07-23 13:51:54,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-07-23 13:51:54,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2018-07-23 13:51:54,471 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand 66 states. [2018-07-23 13:51:54,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,526 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-07-23 13:51:54,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-07-23 13:51:54,526 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 129 [2018-07-23 13:51:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,527 INFO L225 Difference]: With dead ends: 133 [2018-07-23 13:51:54,527 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 13:51:54,528 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 13:51:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 13:51:54,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-07-23 13:51:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-07-23 13:51:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2018-07-23 13:51:54,534 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 129 [2018-07-23 13:51:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,534 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2018-07-23 13:51:54,536 INFO L472 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-07-23 13:51:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2018-07-23 13:51:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-23 13:51:54,538 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,538 INFO L357 BasicCegarLoop]: trace histogram [65, 64, 1, 1] [2018-07-23 13:51:54,538 INFO L414 AbstractCegarLoop]: === Iteration 65 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1852347744, now seen corresponding path program 64 times [2018-07-23 13:51:54,539 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,805 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:54,805 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-07-23 13:51:54,805 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,806 INFO L185 omatonBuilderFactory]: Interpolants [20012#true, 20013#false, 20014#(<= (+ main_offset 1048) main_length), 20015#(<= (+ main_offset 1044) main_length), 20016#(<= (+ main_offset 1040) main_length), 20017#(<= (+ main_offset 1036) main_length), 20018#(<= (+ main_offset 1032) main_length), 20019#(<= (+ main_offset 1028) main_length), 20020#(<= (+ main_offset 1024) main_length), 20021#(<= (+ main_offset 1020) main_length), 20022#(<= (+ main_offset 1016) main_length), 20023#(<= (+ main_offset 1012) main_length), 20024#(<= (+ main_offset 1008) main_length), 20025#(<= (+ main_offset 1004) main_length), 20026#(<= (+ main_offset 1000) main_length), 20027#(<= (+ main_offset 996) main_length), 20028#(<= (+ main_offset 992) main_length), 20029#(<= (+ main_offset 988) main_length), 20030#(<= (+ main_offset 984) main_length), 20031#(<= (+ main_offset 980) main_length), 20032#(<= (+ main_offset 976) main_length), 20033#(<= (+ main_offset 972) main_length), 20034#(<= (+ main_offset 968) main_length), 20035#(<= (+ main_offset 964) main_length), 20036#(<= (+ main_offset 960) main_length), 20037#(<= (+ main_offset 956) main_length), 20038#(<= (+ main_offset 952) main_length), 20039#(<= (+ main_offset 948) main_length), 20040#(<= (+ main_offset 944) main_length), 20041#(<= (+ main_offset 940) main_length), 20042#(<= (+ main_offset 936) main_length), 20043#(<= (+ main_offset 932) main_length), 20044#(<= (+ main_offset 928) main_length), 20045#(<= (+ main_offset 924) main_length), 20046#(<= (+ main_offset 920) main_length), 20047#(<= (+ main_offset 916) main_length), 20048#(<= (+ main_offset 912) main_length), 20049#(<= (+ main_offset 908) main_length), 20050#(<= (+ main_offset 904) main_length), 20051#(<= (+ main_offset 900) main_length), 20052#(<= (+ main_offset 896) main_length), 20053#(<= (+ main_offset 892) main_length), 20054#(<= (+ main_offset 888) main_length), 20055#(<= (+ main_offset 884) main_length), 20056#(<= (+ main_offset 880) main_length), 20057#(<= (+ main_offset 876) main_length), 20058#(<= (+ main_offset 872) main_length), 20059#(<= (+ main_offset 868) main_length), 20060#(<= (+ main_offset 864) main_length), 20061#(<= (+ main_offset 860) main_length), 20062#(<= (+ main_offset 856) main_length), 20063#(<= (+ main_offset 852) main_length), 20064#(<= (+ main_offset 848) main_length), 20065#(<= (+ main_offset 844) main_length), 20066#(<= (+ main_offset 840) main_length), 20067#(<= (+ main_offset 836) main_length), 20068#(<= (+ main_offset 832) main_length), 20069#(<= (+ main_offset 828) main_length), 20070#(<= (+ main_offset 824) main_length), 20071#(<= (+ main_offset 820) main_length), 20072#(<= (+ main_offset 816) main_length), 20073#(<= (+ main_offset 812) main_length), 20074#(<= (+ main_offset 808) main_length), 20075#(<= (+ main_offset 804) main_length), 20076#(<= (+ main_offset 800) main_length), 20077#(<= (+ main_offset 796) main_length), 20078#(<= (+ main_offset 792) main_length)] [2018-07-23 13:51:54,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4160 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:54,807 INFO L450 AbstractCegarLoop]: Interpolant automaton has 67 states [2018-07-23 13:51:54,808 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2018-07-23 13:51:54,808 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2018-07-23 13:51:54,809 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 67 states. [2018-07-23 13:51:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:54,888 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2018-07-23 13:51:54,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-07-23 13:51:54,889 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 131 [2018-07-23 13:51:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:54,890 INFO L225 Difference]: With dead ends: 135 [2018-07-23 13:51:54,890 INFO L226 Difference]: Without dead ends: 134 [2018-07-23 13:51:54,890 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 13:51:54,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-07-23 13:51:54,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-07-23 13:51:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-07-23 13:51:54,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2018-07-23 13:51:54,895 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 131 [2018-07-23 13:51:54,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:54,898 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2018-07-23 13:51:54,898 INFO L472 AbstractCegarLoop]: Interpolant automaton has 67 states. [2018-07-23 13:51:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2018-07-23 13:51:54,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-07-23 13:51:54,899 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:54,899 INFO L357 BasicCegarLoop]: trace histogram [66, 65, 1, 1] [2018-07-23 13:51:54,899 INFO L414 AbstractCegarLoop]: === Iteration 66 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:54,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1989722530, now seen corresponding path program 65 times [2018-07-23 13:51:54,900 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 4290 backedges. 0 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,175 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,175 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-07-23 13:51:55,175 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,176 INFO L185 omatonBuilderFactory]: Interpolants [20617#true, 20618#false, 20619#(<= (+ main_offset 1048) main_length), 20620#(<= (+ main_offset 1044) main_length), 20621#(<= (+ main_offset 1040) main_length), 20622#(<= (+ main_offset 1036) main_length), 20623#(<= (+ main_offset 1032) main_length), 20624#(<= (+ main_offset 1028) main_length), 20625#(<= (+ main_offset 1024) main_length), 20626#(<= (+ main_offset 1020) main_length), 20627#(<= (+ main_offset 1016) main_length), 20628#(<= (+ main_offset 1012) main_length), 20629#(<= (+ main_offset 1008) main_length), 20630#(<= (+ main_offset 1004) main_length), 20631#(<= (+ main_offset 1000) main_length), 20632#(<= (+ main_offset 996) main_length), 20633#(<= (+ main_offset 992) main_length), 20634#(<= (+ main_offset 988) main_length), 20635#(<= (+ main_offset 984) main_length), 20636#(<= (+ main_offset 980) main_length), 20637#(<= (+ main_offset 976) main_length), 20638#(<= (+ main_offset 972) main_length), 20639#(<= (+ main_offset 968) main_length), 20640#(<= (+ main_offset 964) main_length), 20641#(<= (+ main_offset 960) main_length), 20642#(<= (+ main_offset 956) main_length), 20643#(<= (+ main_offset 952) main_length), 20644#(<= (+ main_offset 948) main_length), 20645#(<= (+ main_offset 944) main_length), 20646#(<= (+ main_offset 940) main_length), 20647#(<= (+ main_offset 936) main_length), 20648#(<= (+ main_offset 932) main_length), 20649#(<= (+ main_offset 928) main_length), 20650#(<= (+ main_offset 924) main_length), 20651#(<= (+ main_offset 920) main_length), 20652#(<= (+ main_offset 916) main_length), 20653#(<= (+ main_offset 912) main_length), 20654#(<= (+ main_offset 908) main_length), 20655#(<= (+ main_offset 904) main_length), 20656#(<= (+ main_offset 900) main_length), 20657#(<= (+ main_offset 896) main_length), 20658#(<= (+ main_offset 892) main_length), 20659#(<= (+ main_offset 888) main_length), 20660#(<= (+ main_offset 884) main_length), 20661#(<= (+ main_offset 880) main_length), 20662#(<= (+ main_offset 876) main_length), 20663#(<= (+ main_offset 872) main_length), 20664#(<= (+ main_offset 868) main_length), 20665#(<= (+ main_offset 864) main_length), 20666#(<= (+ main_offset 860) main_length), 20667#(<= (+ main_offset 856) main_length), 20668#(<= (+ main_offset 852) main_length), 20669#(<= (+ main_offset 848) main_length), 20670#(<= (+ main_offset 844) main_length), 20671#(<= (+ main_offset 840) main_length), 20672#(<= (+ main_offset 836) main_length), 20673#(<= (+ main_offset 832) main_length), 20674#(<= (+ main_offset 828) main_length), 20675#(<= (+ main_offset 824) main_length), 20676#(<= (+ main_offset 820) main_length), 20677#(<= (+ main_offset 816) main_length), 20678#(<= (+ main_offset 812) main_length), 20679#(<= (+ main_offset 808) main_length), 20680#(<= (+ main_offset 804) main_length), 20681#(<= (+ main_offset 800) main_length), 20682#(<= (+ main_offset 796) main_length), 20683#(<= (+ main_offset 792) main_length), 20684#(<= (+ main_offset 788) main_length)] [2018-07-23 13:51:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4290 backedges. 0 proven. 4290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,176 INFO L450 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-07-23 13:51:55,177 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-07-23 13:51:55,177 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:55,177 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand 68 states. [2018-07-23 13:51:55,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,264 INFO L93 Difference]: Finished difference Result 137 states and 137 transitions. [2018-07-23 13:51:55,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2018-07-23 13:51:55,265 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 133 [2018-07-23 13:51:55,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,266 INFO L225 Difference]: With dead ends: 137 [2018-07-23 13:51:55,266 INFO L226 Difference]: Without dead ends: 136 [2018-07-23 13:51:55,267 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2018-07-23 13:51:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2018-07-23 13:51:55,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2018-07-23 13:51:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-07-23 13:51:55,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2018-07-23 13:51:55,271 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 133 [2018-07-23 13:51:55,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,272 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2018-07-23 13:51:55,272 INFO L472 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-07-23 13:51:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2018-07-23 13:51:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-23 13:51:55,273 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,273 INFO L357 BasicCegarLoop]: trace histogram [67, 66, 1, 1] [2018-07-23 13:51:55,273 INFO L414 AbstractCegarLoop]: === Iteration 67 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,274 INFO L82 PathProgramCache]: Analyzing trace with hash 862905700, now seen corresponding path program 66 times [2018-07-23 13:51:55,274 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 0 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,508 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,508 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2018-07-23 13:51:55,508 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,509 INFO L185 omatonBuilderFactory]: Interpolants [21248#(<= (+ main_offset 988) main_length), 21249#(<= (+ main_offset 984) main_length), 21250#(<= (+ main_offset 980) main_length), 21251#(<= (+ main_offset 976) main_length), 21252#(<= (+ main_offset 972) main_length), 21253#(<= (+ main_offset 968) main_length), 21254#(<= (+ main_offset 964) main_length), 21255#(<= (+ main_offset 960) main_length), 21256#(<= (+ main_offset 956) main_length), 21257#(<= (+ main_offset 952) main_length), 21258#(<= (+ main_offset 948) main_length), 21259#(<= (+ main_offset 944) main_length), 21260#(<= (+ main_offset 940) main_length), 21261#(<= (+ main_offset 936) main_length), 21262#(<= (+ main_offset 932) main_length), 21263#(<= (+ main_offset 928) main_length), 21264#(<= (+ main_offset 924) main_length), 21265#(<= (+ main_offset 920) main_length), 21266#(<= (+ main_offset 916) main_length), 21267#(<= (+ main_offset 912) main_length), 21268#(<= (+ main_offset 908) main_length), 21269#(<= (+ main_offset 904) main_length), 21270#(<= (+ main_offset 900) main_length), 21271#(<= (+ main_offset 896) main_length), 21272#(<= (+ main_offset 892) main_length), 21273#(<= (+ main_offset 888) main_length), 21274#(<= (+ main_offset 884) main_length), 21275#(<= (+ main_offset 880) main_length), 21276#(<= (+ main_offset 876) main_length), 21277#(<= (+ main_offset 872) main_length), 21278#(<= (+ main_offset 868) main_length), 21279#(<= (+ main_offset 864) main_length), 21280#(<= (+ main_offset 860) main_length), 21281#(<= (+ main_offset 856) main_length), 21282#(<= (+ main_offset 852) main_length), 21283#(<= (+ main_offset 848) main_length), 21284#(<= (+ main_offset 844) main_length), 21285#(<= (+ main_offset 840) main_length), 21286#(<= (+ main_offset 836) main_length), 21287#(<= (+ main_offset 832) main_length), 21288#(<= (+ main_offset 828) main_length), 21289#(<= (+ main_offset 824) main_length), 21290#(<= (+ main_offset 820) main_length), 21291#(<= (+ main_offset 816) main_length), 21292#(<= (+ main_offset 812) main_length), 21293#(<= (+ main_offset 808) main_length), 21294#(<= (+ main_offset 804) main_length), 21295#(<= (+ main_offset 800) main_length), 21296#(<= (+ main_offset 796) main_length), 21297#(<= (+ main_offset 792) main_length), 21298#(<= (+ main_offset 788) main_length), 21299#(<= (+ main_offset 784) main_length), 21231#true, 21232#false, 21233#(<= (+ main_offset 1048) main_length), 21234#(<= (+ main_offset 1044) main_length), 21235#(<= (+ main_offset 1040) main_length), 21236#(<= (+ main_offset 1036) main_length), 21237#(<= (+ main_offset 1032) main_length), 21238#(<= (+ main_offset 1028) main_length), 21239#(<= (+ main_offset 1024) main_length), 21240#(<= (+ main_offset 1020) main_length), 21241#(<= (+ main_offset 1016) main_length), 21242#(<= (+ main_offset 1012) main_length), 21243#(<= (+ main_offset 1008) main_length), 21244#(<= (+ main_offset 1004) main_length), 21245#(<= (+ main_offset 1000) main_length), 21246#(<= (+ main_offset 996) main_length), 21247#(<= (+ main_offset 992) main_length)] [2018-07-23 13:51:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 0 proven. 4422 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,509 INFO L450 AbstractCegarLoop]: Interpolant automaton has 69 states [2018-07-23 13:51:55,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2018-07-23 13:51:55,511 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2018-07-23 13:51:55,511 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand 69 states. [2018-07-23 13:51:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:55,585 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2018-07-23 13:51:55,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-23 13:51:55,585 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 135 [2018-07-23 13:51:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:55,586 INFO L225 Difference]: With dead ends: 139 [2018-07-23 13:51:55,586 INFO L226 Difference]: Without dead ends: 138 [2018-07-23 13:51:55,587 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 13:51:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-07-23 13:51:55,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-07-23 13:51:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-07-23 13:51:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2018-07-23 13:51:55,592 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 135 [2018-07-23 13:51:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:55,592 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2018-07-23 13:51:55,592 INFO L472 AbstractCegarLoop]: Interpolant automaton has 69 states. [2018-07-23 13:51:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2018-07-23 13:51:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-23 13:51:55,593 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:55,593 INFO L357 BasicCegarLoop]: trace histogram [68, 67, 1, 1] [2018-07-23 13:51:55,594 INFO L414 AbstractCegarLoop]: === Iteration 68 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:55,594 INFO L82 PathProgramCache]: Analyzing trace with hash 323690662, now seen corresponding path program 67 times [2018-07-23 13:51:55,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:55,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,949 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:55,949 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-07-23 13:51:55,950 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,950 INFO L185 omatonBuilderFactory]: Interpolants [21888#(<= (+ main_offset 920) main_length), 21889#(<= (+ main_offset 916) main_length), 21890#(<= (+ main_offset 912) main_length), 21891#(<= (+ main_offset 908) main_length), 21892#(<= (+ main_offset 904) main_length), 21893#(<= (+ main_offset 900) main_length), 21894#(<= (+ main_offset 896) main_length), 21895#(<= (+ main_offset 892) main_length), 21896#(<= (+ main_offset 888) main_length), 21897#(<= (+ main_offset 884) main_length), 21898#(<= (+ main_offset 880) main_length), 21899#(<= (+ main_offset 876) main_length), 21900#(<= (+ main_offset 872) main_length), 21901#(<= (+ main_offset 868) main_length), 21902#(<= (+ main_offset 864) main_length), 21903#(<= (+ main_offset 860) main_length), 21904#(<= (+ main_offset 856) main_length), 21905#(<= (+ main_offset 852) main_length), 21906#(<= (+ main_offset 848) main_length), 21907#(<= (+ main_offset 844) main_length), 21908#(<= (+ main_offset 840) main_length), 21909#(<= (+ main_offset 836) main_length), 21910#(<= (+ main_offset 832) main_length), 21911#(<= (+ main_offset 828) main_length), 21912#(<= (+ main_offset 824) main_length), 21913#(<= (+ main_offset 820) main_length), 21914#(<= (+ main_offset 816) main_length), 21915#(<= (+ main_offset 812) main_length), 21916#(<= (+ main_offset 808) main_length), 21917#(<= (+ main_offset 804) main_length), 21918#(<= (+ main_offset 800) main_length), 21919#(<= (+ main_offset 796) main_length), 21920#(<= (+ main_offset 792) main_length), 21921#(<= (+ main_offset 788) main_length), 21922#(<= (+ main_offset 784) main_length), 21923#(<= (+ main_offset 780) main_length), 21854#true, 21855#false, 21856#(<= (+ main_offset 1048) main_length), 21857#(<= (+ main_offset 1044) main_length), 21858#(<= (+ main_offset 1040) main_length), 21859#(<= (+ main_offset 1036) main_length), 21860#(<= (+ main_offset 1032) main_length), 21861#(<= (+ main_offset 1028) main_length), 21862#(<= (+ main_offset 1024) main_length), 21863#(<= (+ main_offset 1020) main_length), 21864#(<= (+ main_offset 1016) main_length), 21865#(<= (+ main_offset 1012) main_length), 21866#(<= (+ main_offset 1008) main_length), 21867#(<= (+ main_offset 1004) main_length), 21868#(<= (+ main_offset 1000) main_length), 21869#(<= (+ main_offset 996) main_length), 21870#(<= (+ main_offset 992) main_length), 21871#(<= (+ main_offset 988) main_length), 21872#(<= (+ main_offset 984) main_length), 21873#(<= (+ main_offset 980) main_length), 21874#(<= (+ main_offset 976) main_length), 21875#(<= (+ main_offset 972) main_length), 21876#(<= (+ main_offset 968) main_length), 21877#(<= (+ main_offset 964) main_length), 21878#(<= (+ main_offset 960) main_length), 21879#(<= (+ main_offset 956) main_length), 21880#(<= (+ main_offset 952) main_length), 21881#(<= (+ main_offset 948) main_length), 21882#(<= (+ main_offset 944) main_length), 21883#(<= (+ main_offset 940) main_length), 21884#(<= (+ main_offset 936) main_length), 21885#(<= (+ main_offset 932) main_length), 21886#(<= (+ main_offset 928) main_length), 21887#(<= (+ main_offset 924) main_length)] [2018-07-23 13:51:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 4556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:55,951 INFO L450 AbstractCegarLoop]: Interpolant automaton has 70 states [2018-07-23 13:51:55,952 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2018-07-23 13:51:55,952 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:55,952 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand 70 states. [2018-07-23 13:51:56,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,016 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2018-07-23 13:51:56,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2018-07-23 13:51:56,016 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 137 [2018-07-23 13:51:56,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,017 INFO L225 Difference]: With dead ends: 141 [2018-07-23 13:51:56,018 INFO L226 Difference]: Without dead ends: 140 [2018-07-23 13:51:56,019 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2018-07-23 13:51:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-07-23 13:51:56,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-07-23 13:51:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-07-23 13:51:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2018-07-23 13:51:56,026 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 137 [2018-07-23 13:51:56,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,026 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2018-07-23 13:51:56,027 INFO L472 AbstractCegarLoop]: Interpolant automaton has 70 states. [2018-07-23 13:51:56,027 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2018-07-23 13:51:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-23 13:51:56,028 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,028 INFO L357 BasicCegarLoop]: trace histogram [69, 68, 1, 1] [2018-07-23 13:51:56,029 INFO L414 AbstractCegarLoop]: === Iteration 69 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1829081960, now seen corresponding path program 68 times [2018-07-23 13:51:56,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 0 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,380 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,380 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2018-07-23 13:51:56,380 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,381 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 13:51:56,381 INFO L185 omatonBuilderFactory]: Interpolants [22528#(<= (+ main_offset 888) main_length), 22529#(<= (+ main_offset 884) main_length), 22530#(<= (+ main_offset 880) main_length), 22531#(<= (+ main_offset 876) main_length), 22532#(<= (+ main_offset 872) main_length), 22533#(<= (+ main_offset 868) main_length), 22534#(<= (+ main_offset 864) main_length), 22535#(<= (+ main_offset 860) main_length), 22536#(<= (+ main_offset 856) main_length), 22537#(<= (+ main_offset 852) main_length), 22538#(<= (+ main_offset 848) main_length), 22539#(<= (+ main_offset 844) main_length), 22540#(<= (+ main_offset 840) main_length), 22541#(<= (+ main_offset 836) main_length), 22542#(<= (+ main_offset 832) main_length), 22543#(<= (+ main_offset 828) main_length), 22544#(<= (+ main_offset 824) main_length), 22545#(<= (+ main_offset 820) main_length), 22546#(<= (+ main_offset 816) main_length), 22547#(<= (+ main_offset 812) main_length), 22548#(<= (+ main_offset 808) main_length), 22549#(<= (+ main_offset 804) main_length), 22550#(<= (+ main_offset 800) main_length), 22551#(<= (+ main_offset 796) main_length), 22552#(<= (+ main_offset 792) main_length), 22553#(<= (+ main_offset 788) main_length), 22554#(<= (+ main_offset 784) main_length), 22555#(<= (+ main_offset 780) main_length), 22556#(<= (+ main_offset 776) main_length), 22486#true, 22487#false, 22488#(<= (+ main_offset 1048) main_length), 22489#(<= (+ main_offset 1044) main_length), 22490#(<= (+ main_offset 1040) main_length), 22491#(<= (+ main_offset 1036) main_length), 22492#(<= (+ main_offset 1032) main_length), 22493#(<= (+ main_offset 1028) main_length), 22494#(<= (+ main_offset 1024) main_length), 22495#(<= (+ main_offset 1020) main_length), 22496#(<= (+ main_offset 1016) main_length), 22497#(<= (+ main_offset 1012) main_length), 22498#(<= (+ main_offset 1008) main_length), 22499#(<= (+ main_offset 1004) main_length), 22500#(<= (+ main_offset 1000) main_length), 22501#(<= (+ main_offset 996) main_length), 22502#(<= (+ main_offset 992) main_length), 22503#(<= (+ main_offset 988) main_length), 22504#(<= (+ main_offset 984) main_length), 22505#(<= (+ main_offset 980) main_length), 22506#(<= (+ main_offset 976) main_length), 22507#(<= (+ main_offset 972) main_length), 22508#(<= (+ main_offset 968) main_length), 22509#(<= (+ main_offset 964) main_length), 22510#(<= (+ main_offset 960) main_length), 22511#(<= (+ main_offset 956) main_length), 22512#(<= (+ main_offset 952) main_length), 22513#(<= (+ main_offset 948) main_length), 22514#(<= (+ main_offset 944) main_length), 22515#(<= (+ main_offset 940) main_length), 22516#(<= (+ main_offset 936) main_length), 22517#(<= (+ main_offset 932) main_length), 22518#(<= (+ main_offset 928) main_length), 22519#(<= (+ main_offset 924) main_length), 22520#(<= (+ main_offset 920) main_length), 22521#(<= (+ main_offset 916) main_length), 22522#(<= (+ main_offset 912) main_length), 22523#(<= (+ main_offset 908) main_length), 22524#(<= (+ main_offset 904) main_length), 22525#(<= (+ main_offset 900) main_length), 22526#(<= (+ main_offset 896) main_length), 22527#(<= (+ main_offset 892) main_length)] [2018-07-23 13:51:56,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4692 backedges. 0 proven. 4692 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,382 INFO L450 AbstractCegarLoop]: Interpolant automaton has 71 states [2018-07-23 13:51:56,382 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2018-07-23 13:51:56,383 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:56,383 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand 71 states. [2018-07-23 13:51:56,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,445 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2018-07-23 13:51:56,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2018-07-23 13:51:56,446 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 139 [2018-07-23 13:51:56,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,447 INFO L225 Difference]: With dead ends: 143 [2018-07-23 13:51:56,447 INFO L226 Difference]: Without dead ends: 142 [2018-07-23 13:51:56,447 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2018-07-23 13:51:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-07-23 13:51:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-07-23 13:51:56,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-07-23 13:51:56,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2018-07-23 13:51:56,453 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 139 [2018-07-23 13:51:56,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,453 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2018-07-23 13:51:56,453 INFO L472 AbstractCegarLoop]: Interpolant automaton has 71 states. [2018-07-23 13:51:56,453 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2018-07-23 13:51:56,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-23 13:51:56,457 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,457 INFO L357 BasicCegarLoop]: trace histogram [70, 69, 1, 1] [2018-07-23 13:51:56,457 INFO L414 AbstractCegarLoop]: === Iteration 70 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1106140586, now seen corresponding path program 69 times [2018-07-23 13:51:56,457 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 4830 backedges. 0 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,772 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:56,773 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2018-07-23 13:51:56,773 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,774 INFO L185 omatonBuilderFactory]: Interpolants [23168#(<= (+ main_offset 892) main_length), 23169#(<= (+ main_offset 888) main_length), 23170#(<= (+ main_offset 884) main_length), 23171#(<= (+ main_offset 880) main_length), 23172#(<= (+ main_offset 876) main_length), 23173#(<= (+ main_offset 872) main_length), 23174#(<= (+ main_offset 868) main_length), 23175#(<= (+ main_offset 864) main_length), 23176#(<= (+ main_offset 860) main_length), 23177#(<= (+ main_offset 856) main_length), 23178#(<= (+ main_offset 852) main_length), 23179#(<= (+ main_offset 848) main_length), 23180#(<= (+ main_offset 844) main_length), 23181#(<= (+ main_offset 840) main_length), 23182#(<= (+ main_offset 836) main_length), 23183#(<= (+ main_offset 832) main_length), 23184#(<= (+ main_offset 828) main_length), 23185#(<= (+ main_offset 824) main_length), 23186#(<= (+ main_offset 820) main_length), 23187#(<= (+ main_offset 816) main_length), 23188#(<= (+ main_offset 812) main_length), 23189#(<= (+ main_offset 808) main_length), 23190#(<= (+ main_offset 804) main_length), 23191#(<= (+ main_offset 800) main_length), 23192#(<= (+ main_offset 796) main_length), 23193#(<= (+ main_offset 792) main_length), 23194#(<= (+ main_offset 788) main_length), 23195#(<= (+ main_offset 784) main_length), 23196#(<= (+ main_offset 780) main_length), 23197#(<= (+ main_offset 776) main_length), 23198#(<= (+ main_offset 772) main_length), 23127#true, 23128#false, 23129#(<= (+ main_offset 1048) main_length), 23130#(<= (+ main_offset 1044) main_length), 23131#(<= (+ main_offset 1040) main_length), 23132#(<= (+ main_offset 1036) main_length), 23133#(<= (+ main_offset 1032) main_length), 23134#(<= (+ main_offset 1028) main_length), 23135#(<= (+ main_offset 1024) main_length), 23136#(<= (+ main_offset 1020) main_length), 23137#(<= (+ main_offset 1016) main_length), 23138#(<= (+ main_offset 1012) main_length), 23139#(<= (+ main_offset 1008) main_length), 23140#(<= (+ main_offset 1004) main_length), 23141#(<= (+ main_offset 1000) main_length), 23142#(<= (+ main_offset 996) main_length), 23143#(<= (+ main_offset 992) main_length), 23144#(<= (+ main_offset 988) main_length), 23145#(<= (+ main_offset 984) main_length), 23146#(<= (+ main_offset 980) main_length), 23147#(<= (+ main_offset 976) main_length), 23148#(<= (+ main_offset 972) main_length), 23149#(<= (+ main_offset 968) main_length), 23150#(<= (+ main_offset 964) main_length), 23151#(<= (+ main_offset 960) main_length), 23152#(<= (+ main_offset 956) main_length), 23153#(<= (+ main_offset 952) main_length), 23154#(<= (+ main_offset 948) main_length), 23155#(<= (+ main_offset 944) main_length), 23156#(<= (+ main_offset 940) main_length), 23157#(<= (+ main_offset 936) main_length), 23158#(<= (+ main_offset 932) main_length), 23159#(<= (+ main_offset 928) main_length), 23160#(<= (+ main_offset 924) main_length), 23161#(<= (+ main_offset 920) main_length), 23162#(<= (+ main_offset 916) main_length), 23163#(<= (+ main_offset 912) main_length), 23164#(<= (+ main_offset 908) main_length), 23165#(<= (+ main_offset 904) main_length), 23166#(<= (+ main_offset 900) main_length), 23167#(<= (+ main_offset 896) main_length)] [2018-07-23 13:51:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4830 backedges. 0 proven. 4830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:56,775 INFO L450 AbstractCegarLoop]: Interpolant automaton has 72 states [2018-07-23 13:51:56,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2018-07-23 13:51:56,776 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:56,776 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand 72 states. [2018-07-23 13:51:56,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:56,847 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2018-07-23 13:51:56,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2018-07-23 13:51:56,847 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 141 [2018-07-23 13:51:56,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:56,848 INFO L225 Difference]: With dead ends: 145 [2018-07-23 13:51:56,848 INFO L226 Difference]: Without dead ends: 144 [2018-07-23 13:51:56,849 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2018-07-23 13:51:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-07-23 13:51:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-07-23 13:51:56,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-07-23 13:51:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2018-07-23 13:51:56,854 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 141 [2018-07-23 13:51:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:56,854 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2018-07-23 13:51:56,854 INFO L472 AbstractCegarLoop]: Interpolant automaton has 72 states. [2018-07-23 13:51:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2018-07-23 13:51:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-23 13:51:56,856 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:56,856 INFO L357 BasicCegarLoop]: trace histogram [71, 70, 1, 1] [2018-07-23 13:51:56,856 INFO L414 AbstractCegarLoop]: === Iteration 71 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:56,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2144182124, now seen corresponding path program 70 times [2018-07-23 13:51:56,856 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,149 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,150 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2018-07-23 13:51:57,150 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,150 INFO L185 omatonBuilderFactory]: Interpolants [23808#(<= (+ main_offset 932) main_length), 23809#(<= (+ main_offset 928) main_length), 23810#(<= (+ main_offset 924) main_length), 23811#(<= (+ main_offset 920) main_length), 23812#(<= (+ main_offset 916) main_length), 23813#(<= (+ main_offset 912) main_length), 23814#(<= (+ main_offset 908) main_length), 23815#(<= (+ main_offset 904) main_length), 23816#(<= (+ main_offset 900) main_length), 23817#(<= (+ main_offset 896) main_length), 23818#(<= (+ main_offset 892) main_length), 23819#(<= (+ main_offset 888) main_length), 23820#(<= (+ main_offset 884) main_length), 23821#(<= (+ main_offset 880) main_length), 23822#(<= (+ main_offset 876) main_length), 23823#(<= (+ main_offset 872) main_length), 23824#(<= (+ main_offset 868) main_length), 23825#(<= (+ main_offset 864) main_length), 23826#(<= (+ main_offset 860) main_length), 23827#(<= (+ main_offset 856) main_length), 23828#(<= (+ main_offset 852) main_length), 23829#(<= (+ main_offset 848) main_length), 23830#(<= (+ main_offset 844) main_length), 23831#(<= (+ main_offset 840) main_length), 23832#(<= (+ main_offset 836) main_length), 23833#(<= (+ main_offset 832) main_length), 23834#(<= (+ main_offset 828) main_length), 23835#(<= (+ main_offset 824) main_length), 23836#(<= (+ main_offset 820) main_length), 23837#(<= (+ main_offset 816) main_length), 23838#(<= (+ main_offset 812) main_length), 23839#(<= (+ main_offset 808) main_length), 23840#(<= (+ main_offset 804) main_length), 23841#(<= (+ main_offset 800) main_length), 23842#(<= (+ main_offset 796) main_length), 23843#(<= (+ main_offset 792) main_length), 23844#(<= (+ main_offset 788) main_length), 23845#(<= (+ main_offset 784) main_length), 23846#(<= (+ main_offset 780) main_length), 23847#(<= (+ main_offset 776) main_length), 23848#(<= (+ main_offset 772) main_length), 23849#(<= (+ main_offset 768) main_length), 23777#true, 23778#false, 23779#(<= (+ main_offset 1048) main_length), 23780#(<= (+ main_offset 1044) main_length), 23781#(<= (+ main_offset 1040) main_length), 23782#(<= (+ main_offset 1036) main_length), 23783#(<= (+ main_offset 1032) main_length), 23784#(<= (+ main_offset 1028) main_length), 23785#(<= (+ main_offset 1024) main_length), 23786#(<= (+ main_offset 1020) main_length), 23787#(<= (+ main_offset 1016) main_length), 23788#(<= (+ main_offset 1012) main_length), 23789#(<= (+ main_offset 1008) main_length), 23790#(<= (+ main_offset 1004) main_length), 23791#(<= (+ main_offset 1000) main_length), 23792#(<= (+ main_offset 996) main_length), 23793#(<= (+ main_offset 992) main_length), 23794#(<= (+ main_offset 988) main_length), 23795#(<= (+ main_offset 984) main_length), 23796#(<= (+ main_offset 980) main_length), 23797#(<= (+ main_offset 976) main_length), 23798#(<= (+ main_offset 972) main_length), 23799#(<= (+ main_offset 968) main_length), 23800#(<= (+ main_offset 964) main_length), 23801#(<= (+ main_offset 960) main_length), 23802#(<= (+ main_offset 956) main_length), 23803#(<= (+ main_offset 952) main_length), 23804#(<= (+ main_offset 948) main_length), 23805#(<= (+ main_offset 944) main_length), 23806#(<= (+ main_offset 940) main_length), 23807#(<= (+ main_offset 936) main_length)] [2018-07-23 13:51:57,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 4970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,151 INFO L450 AbstractCegarLoop]: Interpolant automaton has 73 states [2018-07-23 13:51:57,151 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2018-07-23 13:51:57,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2018-07-23 13:51:57,152 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand 73 states. [2018-07-23 13:51:57,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,218 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2018-07-23 13:51:57,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-07-23 13:51:57,219 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 143 [2018-07-23 13:51:57,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,220 INFO L225 Difference]: With dead ends: 147 [2018-07-23 13:51:57,220 INFO L226 Difference]: Without dead ends: 146 [2018-07-23 13:51:57,221 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 13:51:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-07-23 13:51:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-07-23 13:51:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-07-23 13:51:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2018-07-23 13:51:57,225 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 143 [2018-07-23 13:51:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,226 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2018-07-23 13:51:57,226 INFO L472 AbstractCegarLoop]: Interpolant automaton has 73 states. [2018-07-23 13:51:57,226 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2018-07-23 13:51:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-23 13:51:57,226 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,227 INFO L357 BasicCegarLoop]: trace histogram [72, 71, 1, 1] [2018-07-23 13:51:57,227 INFO L414 AbstractCegarLoop]: === Iteration 72 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1025279826, now seen corresponding path program 71 times [2018-07-23 13:51:57,227 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,528 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,528 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2018-07-23 13:51:57,528 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,529 INFO L185 omatonBuilderFactory]: Interpolants [24448#(<= (+ main_offset 1008) main_length), 24449#(<= (+ main_offset 1004) main_length), 24450#(<= (+ main_offset 1000) main_length), 24451#(<= (+ main_offset 996) main_length), 24452#(<= (+ main_offset 992) main_length), 24453#(<= (+ main_offset 988) main_length), 24454#(<= (+ main_offset 984) main_length), 24455#(<= (+ main_offset 980) main_length), 24456#(<= (+ main_offset 976) main_length), 24457#(<= (+ main_offset 972) main_length), 24458#(<= (+ main_offset 968) main_length), 24459#(<= (+ main_offset 964) main_length), 24460#(<= (+ main_offset 960) main_length), 24461#(<= (+ main_offset 956) main_length), 24462#(<= (+ main_offset 952) main_length), 24463#(<= (+ main_offset 948) main_length), 24464#(<= (+ main_offset 944) main_length), 24465#(<= (+ main_offset 940) main_length), 24466#(<= (+ main_offset 936) main_length), 24467#(<= (+ main_offset 932) main_length), 24468#(<= (+ main_offset 928) main_length), 24469#(<= (+ main_offset 924) main_length), 24470#(<= (+ main_offset 920) main_length), 24471#(<= (+ main_offset 916) main_length), 24472#(<= (+ main_offset 912) main_length), 24473#(<= (+ main_offset 908) main_length), 24474#(<= (+ main_offset 904) main_length), 24475#(<= (+ main_offset 900) main_length), 24476#(<= (+ main_offset 896) main_length), 24477#(<= (+ main_offset 892) main_length), 24478#(<= (+ main_offset 888) main_length), 24479#(<= (+ main_offset 884) main_length), 24480#(<= (+ main_offset 880) main_length), 24481#(<= (+ main_offset 876) main_length), 24482#(<= (+ main_offset 872) main_length), 24483#(<= (+ main_offset 868) main_length), 24484#(<= (+ main_offset 864) main_length), 24485#(<= (+ main_offset 860) main_length), 24486#(<= (+ main_offset 856) main_length), 24487#(<= (+ main_offset 852) main_length), 24488#(<= (+ main_offset 848) main_length), 24489#(<= (+ main_offset 844) main_length), 24490#(<= (+ main_offset 840) main_length), 24491#(<= (+ main_offset 836) main_length), 24492#(<= (+ main_offset 832) main_length), 24493#(<= (+ main_offset 828) main_length), 24494#(<= (+ main_offset 824) main_length), 24495#(<= (+ main_offset 820) main_length), 24496#(<= (+ main_offset 816) main_length), 24497#(<= (+ main_offset 812) main_length), 24498#(<= (+ main_offset 808) main_length), 24499#(<= (+ main_offset 804) main_length), 24500#(<= (+ main_offset 800) main_length), 24501#(<= (+ main_offset 796) main_length), 24502#(<= (+ main_offset 792) main_length), 24503#(<= (+ main_offset 788) main_length), 24504#(<= (+ main_offset 784) main_length), 24505#(<= (+ main_offset 780) main_length), 24506#(<= (+ main_offset 776) main_length), 24507#(<= (+ main_offset 772) main_length), 24508#(<= (+ main_offset 768) main_length), 24509#(<= (+ main_offset 764) main_length), 24436#true, 24437#false, 24438#(<= (+ main_offset 1048) main_length), 24439#(<= (+ main_offset 1044) main_length), 24440#(<= (+ main_offset 1040) main_length), 24441#(<= (+ main_offset 1036) main_length), 24442#(<= (+ main_offset 1032) main_length), 24443#(<= (+ main_offset 1028) main_length), 24444#(<= (+ main_offset 1024) main_length), 24445#(<= (+ main_offset 1020) main_length), 24446#(<= (+ main_offset 1016) main_length), 24447#(<= (+ main_offset 1012) main_length)] [2018-07-23 13:51:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 5112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-07-23 13:51:57,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-07-23 13:51:57,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2018-07-23 13:51:57,530 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 74 states. [2018-07-23 13:51:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:57,628 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2018-07-23 13:51:57,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-07-23 13:51:57,629 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 145 [2018-07-23 13:51:57,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:57,630 INFO L225 Difference]: With dead ends: 149 [2018-07-23 13:51:57,630 INFO L226 Difference]: Without dead ends: 148 [2018-07-23 13:51:57,631 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 13:51:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-07-23 13:51:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-07-23 13:51:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-07-23 13:51:57,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2018-07-23 13:51:57,635 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 145 [2018-07-23 13:51:57,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:57,636 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2018-07-23 13:51:57,636 INFO L472 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-07-23 13:51:57,636 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2018-07-23 13:51:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-07-23 13:51:57,637 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:57,637 INFO L357 BasicCegarLoop]: trace histogram [73, 72, 1, 1] [2018-07-23 13:51:57,637 INFO L414 AbstractCegarLoop]: === Iteration 73 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:57,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1746400912, now seen corresponding path program 72 times [2018-07-23 13:51:57,638 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5256 backedges. 0 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,907 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:57,907 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2018-07-23 13:51:57,908 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,908 INFO L185 omatonBuilderFactory]: Interpolants [25104#true, 25105#false, 25106#(<= (+ main_offset 1048) main_length), 25107#(<= (+ main_offset 1044) main_length), 25108#(<= (+ main_offset 1040) main_length), 25109#(<= (+ main_offset 1036) main_length), 25110#(<= (+ main_offset 1032) main_length), 25111#(<= (+ main_offset 1028) main_length), 25112#(<= (+ main_offset 1024) main_length), 25113#(<= (+ main_offset 1020) main_length), 25114#(<= (+ main_offset 1016) main_length), 25115#(<= (+ main_offset 1012) main_length), 25116#(<= (+ main_offset 1008) main_length), 25117#(<= (+ main_offset 1004) main_length), 25118#(<= (+ main_offset 1000) main_length), 25119#(<= (+ main_offset 996) main_length), 25120#(<= (+ main_offset 992) main_length), 25121#(<= (+ main_offset 988) main_length), 25122#(<= (+ main_offset 984) main_length), 25123#(<= (+ main_offset 980) main_length), 25124#(<= (+ main_offset 976) main_length), 25125#(<= (+ main_offset 972) main_length), 25126#(<= (+ main_offset 968) main_length), 25127#(<= (+ main_offset 964) main_length), 25128#(<= (+ main_offset 960) main_length), 25129#(<= (+ main_offset 956) main_length), 25130#(<= (+ main_offset 952) main_length), 25131#(<= (+ main_offset 948) main_length), 25132#(<= (+ main_offset 944) main_length), 25133#(<= (+ main_offset 940) main_length), 25134#(<= (+ main_offset 936) main_length), 25135#(<= (+ main_offset 932) main_length), 25136#(<= (+ main_offset 928) main_length), 25137#(<= (+ main_offset 924) main_length), 25138#(<= (+ main_offset 920) main_length), 25139#(<= (+ main_offset 916) main_length), 25140#(<= (+ main_offset 912) main_length), 25141#(<= (+ main_offset 908) main_length), 25142#(<= (+ main_offset 904) main_length), 25143#(<= (+ main_offset 900) main_length), 25144#(<= (+ main_offset 896) main_length), 25145#(<= (+ main_offset 892) main_length), 25146#(<= (+ main_offset 888) main_length), 25147#(<= (+ main_offset 884) main_length), 25148#(<= (+ main_offset 880) main_length), 25149#(<= (+ main_offset 876) main_length), 25150#(<= (+ main_offset 872) main_length), 25151#(<= (+ main_offset 868) main_length), 25152#(<= (+ main_offset 864) main_length), 25153#(<= (+ main_offset 860) main_length), 25154#(<= (+ main_offset 856) main_length), 25155#(<= (+ main_offset 852) main_length), 25156#(<= (+ main_offset 848) main_length), 25157#(<= (+ main_offset 844) main_length), 25158#(<= (+ main_offset 840) main_length), 25159#(<= (+ main_offset 836) main_length), 25160#(<= (+ main_offset 832) main_length), 25161#(<= (+ main_offset 828) main_length), 25162#(<= (+ main_offset 824) main_length), 25163#(<= (+ main_offset 820) main_length), 25164#(<= (+ main_offset 816) main_length), 25165#(<= (+ main_offset 812) main_length), 25166#(<= (+ main_offset 808) main_length), 25167#(<= (+ main_offset 804) main_length), 25168#(<= (+ main_offset 800) main_length), 25169#(<= (+ main_offset 796) main_length), 25170#(<= (+ main_offset 792) main_length), 25171#(<= (+ main_offset 788) main_length), 25172#(<= (+ main_offset 784) main_length), 25173#(<= (+ main_offset 780) main_length), 25174#(<= (+ main_offset 776) main_length), 25175#(<= (+ main_offset 772) main_length), 25176#(<= (+ main_offset 768) main_length), 25177#(<= (+ main_offset 764) main_length), 25178#(<= (+ main_offset 760) main_length)] [2018-07-23 13:51:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5256 backedges. 0 proven. 5256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:57,909 INFO L450 AbstractCegarLoop]: Interpolant automaton has 75 states [2018-07-23 13:51:57,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2018-07-23 13:51:57,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2018-07-23 13:51:57,909 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand 75 states. [2018-07-23 13:51:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,007 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2018-07-23 13:51:58,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2018-07-23 13:51:58,008 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 147 [2018-07-23 13:51:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,009 INFO L225 Difference]: With dead ends: 151 [2018-07-23 13:51:58,009 INFO L226 Difference]: Without dead ends: 150 [2018-07-23 13:51:58,009 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 13:51:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-07-23 13:51:58,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-07-23 13:51:58,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-07-23 13:51:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2018-07-23 13:51:58,013 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 147 [2018-07-23 13:51:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,014 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2018-07-23 13:51:58,014 INFO L472 AbstractCegarLoop]: Interpolant automaton has 75 states. [2018-07-23 13:51:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2018-07-23 13:51:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-07-23 13:51:58,015 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,015 INFO L357 BasicCegarLoop]: trace histogram [74, 73, 1, 1] [2018-07-23 13:51:58,015 INFO L414 AbstractCegarLoop]: === Iteration 74 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1040937394, now seen corresponding path program 73 times [2018-07-23 13:51:58,015 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 5402 backedges. 0 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,324 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,325 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2018-07-23 13:51:58,325 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,325 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 13:51:58,325 INFO L185 omatonBuilderFactory]: Interpolants [25856#(<= (+ main_offset 756) main_length), 25781#true, 25782#false, 25783#(<= (+ main_offset 1048) main_length), 25784#(<= (+ main_offset 1044) main_length), 25785#(<= (+ main_offset 1040) main_length), 25786#(<= (+ main_offset 1036) main_length), 25787#(<= (+ main_offset 1032) main_length), 25788#(<= (+ main_offset 1028) main_length), 25789#(<= (+ main_offset 1024) main_length), 25790#(<= (+ main_offset 1020) main_length), 25791#(<= (+ main_offset 1016) main_length), 25792#(<= (+ main_offset 1012) main_length), 25793#(<= (+ main_offset 1008) main_length), 25794#(<= (+ main_offset 1004) main_length), 25795#(<= (+ main_offset 1000) main_length), 25796#(<= (+ main_offset 996) main_length), 25797#(<= (+ main_offset 992) main_length), 25798#(<= (+ main_offset 988) main_length), 25799#(<= (+ main_offset 984) main_length), 25800#(<= (+ main_offset 980) main_length), 25801#(<= (+ main_offset 976) main_length), 25802#(<= (+ main_offset 972) main_length), 25803#(<= (+ main_offset 968) main_length), 25804#(<= (+ main_offset 964) main_length), 25805#(<= (+ main_offset 960) main_length), 25806#(<= (+ main_offset 956) main_length), 25807#(<= (+ main_offset 952) main_length), 25808#(<= (+ main_offset 948) main_length), 25809#(<= (+ main_offset 944) main_length), 25810#(<= (+ main_offset 940) main_length), 25811#(<= (+ main_offset 936) main_length), 25812#(<= (+ main_offset 932) main_length), 25813#(<= (+ main_offset 928) main_length), 25814#(<= (+ main_offset 924) main_length), 25815#(<= (+ main_offset 920) main_length), 25816#(<= (+ main_offset 916) main_length), 25817#(<= (+ main_offset 912) main_length), 25818#(<= (+ main_offset 908) main_length), 25819#(<= (+ main_offset 904) main_length), 25820#(<= (+ main_offset 900) main_length), 25821#(<= (+ main_offset 896) main_length), 25822#(<= (+ main_offset 892) main_length), 25823#(<= (+ main_offset 888) main_length), 25824#(<= (+ main_offset 884) main_length), 25825#(<= (+ main_offset 880) main_length), 25826#(<= (+ main_offset 876) main_length), 25827#(<= (+ main_offset 872) main_length), 25828#(<= (+ main_offset 868) main_length), 25829#(<= (+ main_offset 864) main_length), 25830#(<= (+ main_offset 860) main_length), 25831#(<= (+ main_offset 856) main_length), 25832#(<= (+ main_offset 852) main_length), 25833#(<= (+ main_offset 848) main_length), 25834#(<= (+ main_offset 844) main_length), 25835#(<= (+ main_offset 840) main_length), 25836#(<= (+ main_offset 836) main_length), 25837#(<= (+ main_offset 832) main_length), 25838#(<= (+ main_offset 828) main_length), 25839#(<= (+ main_offset 824) main_length), 25840#(<= (+ main_offset 820) main_length), 25841#(<= (+ main_offset 816) main_length), 25842#(<= (+ main_offset 812) main_length), 25843#(<= (+ main_offset 808) main_length), 25844#(<= (+ main_offset 804) main_length), 25845#(<= (+ main_offset 800) main_length), 25846#(<= (+ main_offset 796) main_length), 25847#(<= (+ main_offset 792) main_length), 25848#(<= (+ main_offset 788) main_length), 25849#(<= (+ main_offset 784) main_length), 25850#(<= (+ main_offset 780) main_length), 25851#(<= (+ main_offset 776) main_length), 25852#(<= (+ main_offset 772) main_length), 25853#(<= (+ main_offset 768) main_length), 25854#(<= (+ main_offset 764) main_length), 25855#(<= (+ main_offset 760) main_length)] [2018-07-23 13:51:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5402 backedges. 0 proven. 5402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,326 INFO L450 AbstractCegarLoop]: Interpolant automaton has 76 states [2018-07-23 13:51:58,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2018-07-23 13:51:58,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:58,327 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand 76 states. [2018-07-23 13:51:58,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,434 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-07-23 13:51:58,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-07-23 13:51:58,434 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 149 [2018-07-23 13:51:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,435 INFO L225 Difference]: With dead ends: 153 [2018-07-23 13:51:58,435 INFO L226 Difference]: Without dead ends: 152 [2018-07-23 13:51:58,435 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2018-07-23 13:51:58,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-07-23 13:51:58,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-07-23 13:51:58,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-07-23 13:51:58,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2018-07-23 13:51:58,440 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 149 [2018-07-23 13:51:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,440 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2018-07-23 13:51:58,441 INFO L472 AbstractCegarLoop]: Interpolant automaton has 76 states. [2018-07-23 13:51:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2018-07-23 13:51:58,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-23 13:51:58,442 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,442 INFO L357 BasicCegarLoop]: trace histogram [75, 74, 1, 1] [2018-07-23 13:51:58,442 INFO L414 AbstractCegarLoop]: === Iteration 75 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,442 INFO L82 PathProgramCache]: Analyzing trace with hash -386543244, now seen corresponding path program 74 times [2018-07-23 13:51:58,442 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5550 backedges. 0 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,789 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:58,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2018-07-23 13:51:58,789 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,790 INFO L185 omatonBuilderFactory]: Interpolants [26496#(<= (+ main_offset 940) main_length), 26497#(<= (+ main_offset 936) main_length), 26498#(<= (+ main_offset 932) main_length), 26499#(<= (+ main_offset 928) main_length), 26500#(<= (+ main_offset 924) main_length), 26501#(<= (+ main_offset 920) main_length), 26502#(<= (+ main_offset 916) main_length), 26503#(<= (+ main_offset 912) main_length), 26504#(<= (+ main_offset 908) main_length), 26505#(<= (+ main_offset 904) main_length), 26506#(<= (+ main_offset 900) main_length), 26507#(<= (+ main_offset 896) main_length), 26508#(<= (+ main_offset 892) main_length), 26509#(<= (+ main_offset 888) main_length), 26510#(<= (+ main_offset 884) main_length), 26511#(<= (+ main_offset 880) main_length), 26512#(<= (+ main_offset 876) main_length), 26513#(<= (+ main_offset 872) main_length), 26514#(<= (+ main_offset 868) main_length), 26515#(<= (+ main_offset 864) main_length), 26516#(<= (+ main_offset 860) main_length), 26517#(<= (+ main_offset 856) main_length), 26518#(<= (+ main_offset 852) main_length), 26519#(<= (+ main_offset 848) main_length), 26520#(<= (+ main_offset 844) main_length), 26521#(<= (+ main_offset 840) main_length), 26522#(<= (+ main_offset 836) main_length), 26523#(<= (+ main_offset 832) main_length), 26524#(<= (+ main_offset 828) main_length), 26525#(<= (+ main_offset 824) main_length), 26526#(<= (+ main_offset 820) main_length), 26527#(<= (+ main_offset 816) main_length), 26528#(<= (+ main_offset 812) main_length), 26529#(<= (+ main_offset 808) main_length), 26530#(<= (+ main_offset 804) main_length), 26531#(<= (+ main_offset 800) main_length), 26532#(<= (+ main_offset 796) main_length), 26533#(<= (+ main_offset 792) main_length), 26534#(<= (+ main_offset 788) main_length), 26535#(<= (+ main_offset 784) main_length), 26536#(<= (+ main_offset 780) main_length), 26537#(<= (+ main_offset 776) main_length), 26538#(<= (+ main_offset 772) main_length), 26539#(<= (+ main_offset 768) main_length), 26540#(<= (+ main_offset 764) main_length), 26541#(<= (+ main_offset 760) main_length), 26542#(<= (+ main_offset 756) main_length), 26543#(<= (+ main_offset 752) main_length), 26467#true, 26468#false, 26469#(<= (+ main_offset 1048) main_length), 26470#(<= (+ main_offset 1044) main_length), 26471#(<= (+ main_offset 1040) main_length), 26472#(<= (+ main_offset 1036) main_length), 26473#(<= (+ main_offset 1032) main_length), 26474#(<= (+ main_offset 1028) main_length), 26475#(<= (+ main_offset 1024) main_length), 26476#(<= (+ main_offset 1020) main_length), 26477#(<= (+ main_offset 1016) main_length), 26478#(<= (+ main_offset 1012) main_length), 26479#(<= (+ main_offset 1008) main_length), 26480#(<= (+ main_offset 1004) main_length), 26481#(<= (+ main_offset 1000) main_length), 26482#(<= (+ main_offset 996) main_length), 26483#(<= (+ main_offset 992) main_length), 26484#(<= (+ main_offset 988) main_length), 26485#(<= (+ main_offset 984) main_length), 26486#(<= (+ main_offset 980) main_length), 26487#(<= (+ main_offset 976) main_length), 26488#(<= (+ main_offset 972) main_length), 26489#(<= (+ main_offset 968) main_length), 26490#(<= (+ main_offset 964) main_length), 26491#(<= (+ main_offset 960) main_length), 26492#(<= (+ main_offset 956) main_length), 26493#(<= (+ main_offset 952) main_length), 26494#(<= (+ main_offset 948) main_length), 26495#(<= (+ main_offset 944) main_length)] [2018-07-23 13:51:58,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5550 backedges. 0 proven. 5550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:58,791 INFO L450 AbstractCegarLoop]: Interpolant automaton has 77 states [2018-07-23 13:51:58,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2018-07-23 13:51:58,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2018-07-23 13:51:58,792 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand 77 states. [2018-07-23 13:51:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:58,882 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2018-07-23 13:51:58,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-07-23 13:51:58,883 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 151 [2018-07-23 13:51:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:58,884 INFO L225 Difference]: With dead ends: 155 [2018-07-23 13:51:58,884 INFO L226 Difference]: Without dead ends: 154 [2018-07-23 13:51:58,885 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 13:51:58,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-23 13:51:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-07-23 13:51:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-07-23 13:51:58,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-07-23 13:51:58,889 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 151 [2018-07-23 13:51:58,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:58,890 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-07-23 13:51:58,890 INFO L472 AbstractCegarLoop]: Interpolant automaton has 77 states. [2018-07-23 13:51:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-07-23 13:51:58,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-07-23 13:51:58,891 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:58,891 INFO L357 BasicCegarLoop]: trace histogram [76, 75, 1, 1] [2018-07-23 13:51:58,891 INFO L414 AbstractCegarLoop]: === Iteration 76 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:58,891 INFO L82 PathProgramCache]: Analyzing trace with hash -2100868938, now seen corresponding path program 75 times [2018-07-23 13:51:58,891 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:59,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,262 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:59,263 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2018-07-23 13:51:59,263 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,263 INFO L185 omatonBuilderFactory]: Interpolants [27162#true, 27163#false, 27164#(<= (+ main_offset 1048) main_length), 27165#(<= (+ main_offset 1044) main_length), 27166#(<= (+ main_offset 1040) main_length), 27167#(<= (+ main_offset 1036) main_length), 27168#(<= (+ main_offset 1032) main_length), 27169#(<= (+ main_offset 1028) main_length), 27170#(<= (+ main_offset 1024) main_length), 27171#(<= (+ main_offset 1020) main_length), 27172#(<= (+ main_offset 1016) main_length), 27173#(<= (+ main_offset 1012) main_length), 27174#(<= (+ main_offset 1008) main_length), 27175#(<= (+ main_offset 1004) main_length), 27176#(<= (+ main_offset 1000) main_length), 27177#(<= (+ main_offset 996) main_length), 27178#(<= (+ main_offset 992) main_length), 27179#(<= (+ main_offset 988) main_length), 27180#(<= (+ main_offset 984) main_length), 27181#(<= (+ main_offset 980) main_length), 27182#(<= (+ main_offset 976) main_length), 27183#(<= (+ main_offset 972) main_length), 27184#(<= (+ main_offset 968) main_length), 27185#(<= (+ main_offset 964) main_length), 27186#(<= (+ main_offset 960) main_length), 27187#(<= (+ main_offset 956) main_length), 27188#(<= (+ main_offset 952) main_length), 27189#(<= (+ main_offset 948) main_length), 27190#(<= (+ main_offset 944) main_length), 27191#(<= (+ main_offset 940) main_length), 27192#(<= (+ main_offset 936) main_length), 27193#(<= (+ main_offset 932) main_length), 27194#(<= (+ main_offset 928) main_length), 27195#(<= (+ main_offset 924) main_length), 27196#(<= (+ main_offset 920) main_length), 27197#(<= (+ main_offset 916) main_length), 27198#(<= (+ main_offset 912) main_length), 27199#(<= (+ main_offset 908) main_length), 27200#(<= (+ main_offset 904) main_length), 27201#(<= (+ main_offset 900) main_length), 27202#(<= (+ main_offset 896) main_length), 27203#(<= (+ main_offset 892) main_length), 27204#(<= (+ main_offset 888) main_length), 27205#(<= (+ main_offset 884) main_length), 27206#(<= (+ main_offset 880) main_length), 27207#(<= (+ main_offset 876) main_length), 27208#(<= (+ main_offset 872) main_length), 27209#(<= (+ main_offset 868) main_length), 27210#(<= (+ main_offset 864) main_length), 27211#(<= (+ main_offset 860) main_length), 27212#(<= (+ main_offset 856) main_length), 27213#(<= (+ main_offset 852) main_length), 27214#(<= (+ main_offset 848) main_length), 27215#(<= (+ main_offset 844) main_length), 27216#(<= (+ main_offset 840) main_length), 27217#(<= (+ main_offset 836) main_length), 27218#(<= (+ main_offset 832) main_length), 27219#(<= (+ main_offset 828) main_length), 27220#(<= (+ main_offset 824) main_length), 27221#(<= (+ main_offset 820) main_length), 27222#(<= (+ main_offset 816) main_length), 27223#(<= (+ main_offset 812) main_length), 27224#(<= (+ main_offset 808) main_length), 27225#(<= (+ main_offset 804) main_length), 27226#(<= (+ main_offset 800) main_length), 27227#(<= (+ main_offset 796) main_length), 27228#(<= (+ main_offset 792) main_length), 27229#(<= (+ main_offset 788) main_length), 27230#(<= (+ main_offset 784) main_length), 27231#(<= (+ main_offset 780) main_length), 27232#(<= (+ main_offset 776) main_length), 27233#(<= (+ main_offset 772) main_length), 27234#(<= (+ main_offset 768) main_length), 27235#(<= (+ main_offset 764) main_length), 27236#(<= (+ main_offset 760) main_length), 27237#(<= (+ main_offset 756) main_length), 27238#(<= (+ main_offset 752) main_length), 27239#(<= (+ main_offset 748) main_length)] [2018-07-23 13:51:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 5700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,264 INFO L450 AbstractCegarLoop]: Interpolant automaton has 78 states [2018-07-23 13:51:59,265 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2018-07-23 13:51:59,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:59,265 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 78 states. [2018-07-23 13:51:59,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,380 INFO L93 Difference]: Finished difference Result 157 states and 157 transitions. [2018-07-23 13:51:59,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-07-23 13:51:59,381 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 153 [2018-07-23 13:51:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,382 INFO L225 Difference]: With dead ends: 157 [2018-07-23 13:51:59,382 INFO L226 Difference]: Without dead ends: 156 [2018-07-23 13:51:59,382 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2018-07-23 13:51:59,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-07-23 13:51:59,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-07-23 13:51:59,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-07-23 13:51:59,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2018-07-23 13:51:59,391 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 153 [2018-07-23 13:51:59,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,392 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2018-07-23 13:51:59,392 INFO L472 AbstractCegarLoop]: Interpolant automaton has 78 states. [2018-07-23 13:51:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2018-07-23 13:51:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-23 13:51:59,393 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,393 INFO L357 BasicCegarLoop]: trace histogram [77, 76, 1, 1] [2018-07-23 13:51:59,393 INFO L414 AbstractCegarLoop]: === Iteration 77 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,393 INFO L82 PathProgramCache]: Analyzing trace with hash -300419208, now seen corresponding path program 76 times [2018-07-23 13:51:59,393 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:51:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,690 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:51:59,690 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2018-07-23 13:51:59,691 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:51:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,691 INFO L185 omatonBuilderFactory]: Interpolants [27904#(<= (+ main_offset 904) main_length), 27905#(<= (+ main_offset 900) main_length), 27906#(<= (+ main_offset 896) main_length), 27907#(<= (+ main_offset 892) main_length), 27908#(<= (+ main_offset 888) main_length), 27909#(<= (+ main_offset 884) main_length), 27910#(<= (+ main_offset 880) main_length), 27911#(<= (+ main_offset 876) main_length), 27912#(<= (+ main_offset 872) main_length), 27913#(<= (+ main_offset 868) main_length), 27914#(<= (+ main_offset 864) main_length), 27915#(<= (+ main_offset 860) main_length), 27916#(<= (+ main_offset 856) main_length), 27917#(<= (+ main_offset 852) main_length), 27918#(<= (+ main_offset 848) main_length), 27919#(<= (+ main_offset 844) main_length), 27920#(<= (+ main_offset 840) main_length), 27921#(<= (+ main_offset 836) main_length), 27922#(<= (+ main_offset 832) main_length), 27923#(<= (+ main_offset 828) main_length), 27924#(<= (+ main_offset 824) main_length), 27925#(<= (+ main_offset 820) main_length), 27926#(<= (+ main_offset 816) main_length), 27927#(<= (+ main_offset 812) main_length), 27928#(<= (+ main_offset 808) main_length), 27929#(<= (+ main_offset 804) main_length), 27930#(<= (+ main_offset 800) main_length), 27931#(<= (+ main_offset 796) main_length), 27932#(<= (+ main_offset 792) main_length), 27933#(<= (+ main_offset 788) main_length), 27934#(<= (+ main_offset 784) main_length), 27935#(<= (+ main_offset 780) main_length), 27936#(<= (+ main_offset 776) main_length), 27937#(<= (+ main_offset 772) main_length), 27938#(<= (+ main_offset 768) main_length), 27939#(<= (+ main_offset 764) main_length), 27940#(<= (+ main_offset 760) main_length), 27941#(<= (+ main_offset 756) main_length), 27942#(<= (+ main_offset 752) main_length), 27943#(<= (+ main_offset 748) main_length), 27944#(<= (+ main_offset 744) main_length), 27866#true, 27867#false, 27868#(<= (+ main_offset 1048) main_length), 27869#(<= (+ main_offset 1044) main_length), 27870#(<= (+ main_offset 1040) main_length), 27871#(<= (+ main_offset 1036) main_length), 27872#(<= (+ main_offset 1032) main_length), 27873#(<= (+ main_offset 1028) main_length), 27874#(<= (+ main_offset 1024) main_length), 27875#(<= (+ main_offset 1020) main_length), 27876#(<= (+ main_offset 1016) main_length), 27877#(<= (+ main_offset 1012) main_length), 27878#(<= (+ main_offset 1008) main_length), 27879#(<= (+ main_offset 1004) main_length), 27880#(<= (+ main_offset 1000) main_length), 27881#(<= (+ main_offset 996) main_length), 27882#(<= (+ main_offset 992) main_length), 27883#(<= (+ main_offset 988) main_length), 27884#(<= (+ main_offset 984) main_length), 27885#(<= (+ main_offset 980) main_length), 27886#(<= (+ main_offset 976) main_length), 27887#(<= (+ main_offset 972) main_length), 27888#(<= (+ main_offset 968) main_length), 27889#(<= (+ main_offset 964) main_length), 27890#(<= (+ main_offset 960) main_length), 27891#(<= (+ main_offset 956) main_length), 27892#(<= (+ main_offset 952) main_length), 27893#(<= (+ main_offset 948) main_length), 27894#(<= (+ main_offset 944) main_length), 27895#(<= (+ main_offset 940) main_length), 27896#(<= (+ main_offset 936) main_length), 27897#(<= (+ main_offset 932) main_length), 27898#(<= (+ main_offset 928) main_length), 27899#(<= (+ main_offset 924) main_length), 27900#(<= (+ main_offset 920) main_length), 27901#(<= (+ main_offset 916) main_length), 27902#(<= (+ main_offset 912) main_length), 27903#(<= (+ main_offset 908) main_length)] [2018-07-23 13:51:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 5852 backedges. 0 proven. 5852 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:51:59,692 INFO L450 AbstractCegarLoop]: Interpolant automaton has 79 states [2018-07-23 13:51:59,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2018-07-23 13:51:59,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:59,693 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand 79 states. [2018-07-23 13:51:59,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:51:59,760 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2018-07-23 13:51:59,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2018-07-23 13:51:59,761 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 155 [2018-07-23 13:51:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:51:59,762 INFO L225 Difference]: With dead ends: 159 [2018-07-23 13:51:59,762 INFO L226 Difference]: Without dead ends: 158 [2018-07-23 13:51:59,763 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2018-07-23 13:51:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-07-23 13:51:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-07-23 13:51:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-07-23 13:51:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 158 transitions. [2018-07-23 13:51:59,770 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 158 transitions. Word has length 155 [2018-07-23 13:51:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:51:59,770 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 158 transitions. [2018-07-23 13:51:59,770 INFO L472 AbstractCegarLoop]: Interpolant automaton has 79 states. [2018-07-23 13:51:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 158 transitions. [2018-07-23 13:51:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-23 13:51:59,773 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:51:59,773 INFO L357 BasicCegarLoop]: trace histogram [78, 77, 1, 1] [2018-07-23 13:51:59,773 INFO L414 AbstractCegarLoop]: === Iteration 78 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:51:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash -940048966, now seen corresponding path program 77 times [2018-07-23 13:51:59,774 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:51:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,050 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,050 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2018-07-23 13:52:00,050 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,051 INFO L185 omatonBuilderFactory]: Interpolants [28579#true, 28580#false, 28581#(<= (+ main_offset 1048) main_length), 28582#(<= (+ main_offset 1044) main_length), 28583#(<= (+ main_offset 1040) main_length), 28584#(<= (+ main_offset 1036) main_length), 28585#(<= (+ main_offset 1032) main_length), 28586#(<= (+ main_offset 1028) main_length), 28587#(<= (+ main_offset 1024) main_length), 28588#(<= (+ main_offset 1020) main_length), 28589#(<= (+ main_offset 1016) main_length), 28590#(<= (+ main_offset 1012) main_length), 28591#(<= (+ main_offset 1008) main_length), 28592#(<= (+ main_offset 1004) main_length), 28593#(<= (+ main_offset 1000) main_length), 28594#(<= (+ main_offset 996) main_length), 28595#(<= (+ main_offset 992) main_length), 28596#(<= (+ main_offset 988) main_length), 28597#(<= (+ main_offset 984) main_length), 28598#(<= (+ main_offset 980) main_length), 28599#(<= (+ main_offset 976) main_length), 28600#(<= (+ main_offset 972) main_length), 28601#(<= (+ main_offset 968) main_length), 28602#(<= (+ main_offset 964) main_length), 28603#(<= (+ main_offset 960) main_length), 28604#(<= (+ main_offset 956) main_length), 28605#(<= (+ main_offset 952) main_length), 28606#(<= (+ main_offset 948) main_length), 28607#(<= (+ main_offset 944) main_length), 28608#(<= (+ main_offset 940) main_length), 28609#(<= (+ main_offset 936) main_length), 28610#(<= (+ main_offset 932) main_length), 28611#(<= (+ main_offset 928) main_length), 28612#(<= (+ main_offset 924) main_length), 28613#(<= (+ main_offset 920) main_length), 28614#(<= (+ main_offset 916) main_length), 28615#(<= (+ main_offset 912) main_length), 28616#(<= (+ main_offset 908) main_length), 28617#(<= (+ main_offset 904) main_length), 28618#(<= (+ main_offset 900) main_length), 28619#(<= (+ main_offset 896) main_length), 28620#(<= (+ main_offset 892) main_length), 28621#(<= (+ main_offset 888) main_length), 28622#(<= (+ main_offset 884) main_length), 28623#(<= (+ main_offset 880) main_length), 28624#(<= (+ main_offset 876) main_length), 28625#(<= (+ main_offset 872) main_length), 28626#(<= (+ main_offset 868) main_length), 28627#(<= (+ main_offset 864) main_length), 28628#(<= (+ main_offset 860) main_length), 28629#(<= (+ main_offset 856) main_length), 28630#(<= (+ main_offset 852) main_length), 28631#(<= (+ main_offset 848) main_length), 28632#(<= (+ main_offset 844) main_length), 28633#(<= (+ main_offset 840) main_length), 28634#(<= (+ main_offset 836) main_length), 28635#(<= (+ main_offset 832) main_length), 28636#(<= (+ main_offset 828) main_length), 28637#(<= (+ main_offset 824) main_length), 28638#(<= (+ main_offset 820) main_length), 28639#(<= (+ main_offset 816) main_length), 28640#(<= (+ main_offset 812) main_length), 28641#(<= (+ main_offset 808) main_length), 28642#(<= (+ main_offset 804) main_length), 28643#(<= (+ main_offset 800) main_length), 28644#(<= (+ main_offset 796) main_length), 28645#(<= (+ main_offset 792) main_length), 28646#(<= (+ main_offset 788) main_length), 28647#(<= (+ main_offset 784) main_length), 28648#(<= (+ main_offset 780) main_length), 28649#(<= (+ main_offset 776) main_length), 28650#(<= (+ main_offset 772) main_length), 28651#(<= (+ main_offset 768) main_length), 28652#(<= (+ main_offset 764) main_length), 28653#(<= (+ main_offset 760) main_length), 28654#(<= (+ main_offset 756) main_length), 28655#(<= (+ main_offset 752) main_length), 28656#(<= (+ main_offset 748) main_length), 28657#(<= (+ main_offset 744) main_length), 28658#(<= (+ main_offset 740) main_length)] [2018-07-23 13:52:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,052 INFO L450 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-07-23 13:52:00,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-07-23 13:52:00,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2018-07-23 13:52:00,053 INFO L87 Difference]: Start difference. First operand 158 states and 158 transitions. Second operand 80 states. [2018-07-23 13:52:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:00,152 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2018-07-23 13:52:00,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-07-23 13:52:00,152 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 157 [2018-07-23 13:52:00,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:00,153 INFO L225 Difference]: With dead ends: 161 [2018-07-23 13:52:00,153 INFO L226 Difference]: Without dead ends: 160 [2018-07-23 13:52:00,154 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 13:52:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2018-07-23 13:52:00,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2018-07-23 13:52:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2018-07-23 13:52:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2018-07-23 13:52:00,159 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 157 [2018-07-23 13:52:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,159 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2018-07-23 13:52:00,159 INFO L472 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-07-23 13:52:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2018-07-23 13:52:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-07-23 13:52:00,160 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,161 INFO L357 BasicCegarLoop]: trace histogram [79, 78, 1, 1] [2018-07-23 13:52:00,161 INFO L414 AbstractCegarLoop]: === Iteration 79 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1443923076, now seen corresponding path program 78 times [2018-07-23 13:52:00,161 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,529 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:00,529 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2018-07-23 13:52:00,529 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:00,529 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 13:52:00,530 INFO L185 omatonBuilderFactory]: Interpolants [29312#(<= (+ main_offset 1012) main_length), 29313#(<= (+ main_offset 1008) main_length), 29314#(<= (+ main_offset 1004) main_length), 29315#(<= (+ main_offset 1000) main_length), 29316#(<= (+ main_offset 996) main_length), 29317#(<= (+ main_offset 992) main_length), 29318#(<= (+ main_offset 988) main_length), 29319#(<= (+ main_offset 984) main_length), 29320#(<= (+ main_offset 980) main_length), 29321#(<= (+ main_offset 976) main_length), 29322#(<= (+ main_offset 972) main_length), 29323#(<= (+ main_offset 968) main_length), 29324#(<= (+ main_offset 964) main_length), 29325#(<= (+ main_offset 960) main_length), 29326#(<= (+ main_offset 956) main_length), 29327#(<= (+ main_offset 952) main_length), 29328#(<= (+ main_offset 948) main_length), 29329#(<= (+ main_offset 944) main_length), 29330#(<= (+ main_offset 940) main_length), 29331#(<= (+ main_offset 936) main_length), 29332#(<= (+ main_offset 932) main_length), 29333#(<= (+ main_offset 928) main_length), 29334#(<= (+ main_offset 924) main_length), 29335#(<= (+ main_offset 920) main_length), 29336#(<= (+ main_offset 916) main_length), 29337#(<= (+ main_offset 912) main_length), 29338#(<= (+ main_offset 908) main_length), 29339#(<= (+ main_offset 904) main_length), 29340#(<= (+ main_offset 900) main_length), 29341#(<= (+ main_offset 896) main_length), 29342#(<= (+ main_offset 892) main_length), 29343#(<= (+ main_offset 888) main_length), 29344#(<= (+ main_offset 884) main_length), 29345#(<= (+ main_offset 880) main_length), 29346#(<= (+ main_offset 876) main_length), 29347#(<= (+ main_offset 872) main_length), 29348#(<= (+ main_offset 868) main_length), 29349#(<= (+ main_offset 864) main_length), 29350#(<= (+ main_offset 860) main_length), 29351#(<= (+ main_offset 856) main_length), 29352#(<= (+ main_offset 852) main_length), 29353#(<= (+ main_offset 848) main_length), 29354#(<= (+ main_offset 844) main_length), 29355#(<= (+ main_offset 840) main_length), 29356#(<= (+ main_offset 836) main_length), 29357#(<= (+ main_offset 832) main_length), 29358#(<= (+ main_offset 828) main_length), 29359#(<= (+ main_offset 824) main_length), 29360#(<= (+ main_offset 820) main_length), 29361#(<= (+ main_offset 816) main_length), 29362#(<= (+ main_offset 812) main_length), 29363#(<= (+ main_offset 808) main_length), 29364#(<= (+ main_offset 804) main_length), 29365#(<= (+ main_offset 800) main_length), 29366#(<= (+ main_offset 796) main_length), 29367#(<= (+ main_offset 792) main_length), 29368#(<= (+ main_offset 788) main_length), 29369#(<= (+ main_offset 784) main_length), 29370#(<= (+ main_offset 780) main_length), 29371#(<= (+ main_offset 776) main_length), 29372#(<= (+ main_offset 772) main_length), 29373#(<= (+ main_offset 768) main_length), 29374#(<= (+ main_offset 764) main_length), 29375#(<= (+ main_offset 760) main_length), 29376#(<= (+ main_offset 756) main_length), 29377#(<= (+ main_offset 752) main_length), 29378#(<= (+ main_offset 748) main_length), 29379#(<= (+ main_offset 744) main_length), 29380#(<= (+ main_offset 740) main_length), 29381#(<= (+ main_offset 736) main_length), 29301#true, 29302#false, 29303#(<= (+ main_offset 1048) main_length), 29304#(<= (+ main_offset 1044) main_length), 29305#(<= (+ main_offset 1040) main_length), 29306#(<= (+ main_offset 1036) main_length), 29307#(<= (+ main_offset 1032) main_length), 29308#(<= (+ main_offset 1028) main_length), 29309#(<= (+ main_offset 1024) main_length), 29310#(<= (+ main_offset 1020) main_length), 29311#(<= (+ main_offset 1016) main_length)] [2018-07-23 13:52:00,530 INFO L134 CoverageAnalysis]: Checked inductivity of 6162 backedges. 0 proven. 6162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:00,531 INFO L450 AbstractCegarLoop]: Interpolant automaton has 81 states [2018-07-23 13:52:00,532 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2018-07-23 13:52:00,532 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:00,532 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 81 states. [2018-07-23 13:52:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:00,633 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2018-07-23 13:52:00,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-07-23 13:52:00,633 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 159 [2018-07-23 13:52:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:00,634 INFO L225 Difference]: With dead ends: 163 [2018-07-23 13:52:00,634 INFO L226 Difference]: Without dead ends: 162 [2018-07-23 13:52:00,635 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2018-07-23 13:52:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-07-23 13:52:00,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2018-07-23 13:52:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2018-07-23 13:52:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2018-07-23 13:52:00,641 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 159 [2018-07-23 13:52:00,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:00,642 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2018-07-23 13:52:00,642 INFO L472 AbstractCegarLoop]: Interpolant automaton has 81 states. [2018-07-23 13:52:00,642 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2018-07-23 13:52:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-07-23 13:52:00,643 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:00,643 INFO L357 BasicCegarLoop]: trace histogram [80, 79, 1, 1] [2018-07-23 13:52:00,643 INFO L414 AbstractCegarLoop]: === Iteration 80 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:00,643 INFO L82 PathProgramCache]: Analyzing trace with hash -335638338, now seen corresponding path program 79 times [2018-07-23 13:52:00,643 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,052 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,052 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2018-07-23 13:52:01,052 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,052 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 13:52:01,052 INFO L185 omatonBuilderFactory]: Interpolants [30080#(<= (+ main_offset 864) main_length), 30081#(<= (+ main_offset 860) main_length), 30082#(<= (+ main_offset 856) main_length), 30083#(<= (+ main_offset 852) main_length), 30084#(<= (+ main_offset 848) main_length), 30085#(<= (+ main_offset 844) main_length), 30086#(<= (+ main_offset 840) main_length), 30087#(<= (+ main_offset 836) main_length), 30088#(<= (+ main_offset 832) main_length), 30089#(<= (+ main_offset 828) main_length), 30090#(<= (+ main_offset 824) main_length), 30091#(<= (+ main_offset 820) main_length), 30092#(<= (+ main_offset 816) main_length), 30093#(<= (+ main_offset 812) main_length), 30094#(<= (+ main_offset 808) main_length), 30095#(<= (+ main_offset 804) main_length), 30096#(<= (+ main_offset 800) main_length), 30097#(<= (+ main_offset 796) main_length), 30098#(<= (+ main_offset 792) main_length), 30099#(<= (+ main_offset 788) main_length), 30100#(<= (+ main_offset 784) main_length), 30101#(<= (+ main_offset 780) main_length), 30102#(<= (+ main_offset 776) main_length), 30103#(<= (+ main_offset 772) main_length), 30104#(<= (+ main_offset 768) main_length), 30105#(<= (+ main_offset 764) main_length), 30106#(<= (+ main_offset 760) main_length), 30107#(<= (+ main_offset 756) main_length), 30108#(<= (+ main_offset 752) main_length), 30109#(<= (+ main_offset 748) main_length), 30110#(<= (+ main_offset 744) main_length), 30111#(<= (+ main_offset 740) main_length), 30112#(<= (+ main_offset 736) main_length), 30113#(<= (+ main_offset 732) main_length), 30032#true, 30033#false, 30034#(<= (+ main_offset 1048) main_length), 30035#(<= (+ main_offset 1044) main_length), 30036#(<= (+ main_offset 1040) main_length), 30037#(<= (+ main_offset 1036) main_length), 30038#(<= (+ main_offset 1032) main_length), 30039#(<= (+ main_offset 1028) main_length), 30040#(<= (+ main_offset 1024) main_length), 30041#(<= (+ main_offset 1020) main_length), 30042#(<= (+ main_offset 1016) main_length), 30043#(<= (+ main_offset 1012) main_length), 30044#(<= (+ main_offset 1008) main_length), 30045#(<= (+ main_offset 1004) main_length), 30046#(<= (+ main_offset 1000) main_length), 30047#(<= (+ main_offset 996) main_length), 30048#(<= (+ main_offset 992) main_length), 30049#(<= (+ main_offset 988) main_length), 30050#(<= (+ main_offset 984) main_length), 30051#(<= (+ main_offset 980) main_length), 30052#(<= (+ main_offset 976) main_length), 30053#(<= (+ main_offset 972) main_length), 30054#(<= (+ main_offset 968) main_length), 30055#(<= (+ main_offset 964) main_length), 30056#(<= (+ main_offset 960) main_length), 30057#(<= (+ main_offset 956) main_length), 30058#(<= (+ main_offset 952) main_length), 30059#(<= (+ main_offset 948) main_length), 30060#(<= (+ main_offset 944) main_length), 30061#(<= (+ main_offset 940) main_length), 30062#(<= (+ main_offset 936) main_length), 30063#(<= (+ main_offset 932) main_length), 30064#(<= (+ main_offset 928) main_length), 30065#(<= (+ main_offset 924) main_length), 30066#(<= (+ main_offset 920) main_length), 30067#(<= (+ main_offset 916) main_length), 30068#(<= (+ main_offset 912) main_length), 30069#(<= (+ main_offset 908) main_length), 30070#(<= (+ main_offset 904) main_length), 30071#(<= (+ main_offset 900) main_length), 30072#(<= (+ main_offset 896) main_length), 30073#(<= (+ main_offset 892) main_length), 30074#(<= (+ main_offset 888) main_length), 30075#(<= (+ main_offset 884) main_length), 30076#(<= (+ main_offset 880) main_length), 30077#(<= (+ main_offset 876) main_length), 30078#(<= (+ main_offset 872) main_length), 30079#(<= (+ main_offset 868) main_length)] [2018-07-23 13:52:01,053 INFO L134 CoverageAnalysis]: Checked inductivity of 6320 backedges. 0 proven. 6320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,053 INFO L450 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-07-23 13:52:01,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-07-23 13:52:01,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:01,054 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand 82 states. [2018-07-23 13:52:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,106 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2018-07-23 13:52:01,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2018-07-23 13:52:01,106 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 161 [2018-07-23 13:52:01,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,107 INFO L225 Difference]: With dead ends: 165 [2018-07-23 13:52:01,107 INFO L226 Difference]: Without dead ends: 164 [2018-07-23 13:52:01,108 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2018-07-23 13:52:01,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-07-23 13:52:01,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-07-23 13:52:01,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-07-23 13:52:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2018-07-23 13:52:01,113 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 161 [2018-07-23 13:52:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,113 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2018-07-23 13:52:01,113 INFO L472 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-07-23 13:52:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2018-07-23 13:52:01,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-23 13:52:01,114 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,114 INFO L357 BasicCegarLoop]: trace histogram [81, 80, 1, 1] [2018-07-23 13:52:01,115 INFO L414 AbstractCegarLoop]: === Iteration 81 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,115 INFO L82 PathProgramCache]: Analyzing trace with hash -425894528, now seen corresponding path program 80 times [2018-07-23 13:52:01,115 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 0 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,364 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,364 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2018-07-23 13:52:01,364 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,365 INFO L185 omatonBuilderFactory]: Interpolants [30848#(<= (+ main_offset 752) main_length), 30849#(<= (+ main_offset 748) main_length), 30850#(<= (+ main_offset 744) main_length), 30851#(<= (+ main_offset 740) main_length), 30852#(<= (+ main_offset 736) main_length), 30853#(<= (+ main_offset 732) main_length), 30854#(<= (+ main_offset 728) main_length), 30772#true, 30773#false, 30774#(<= (+ main_offset 1048) main_length), 30775#(<= (+ main_offset 1044) main_length), 30776#(<= (+ main_offset 1040) main_length), 30777#(<= (+ main_offset 1036) main_length), 30778#(<= (+ main_offset 1032) main_length), 30779#(<= (+ main_offset 1028) main_length), 30780#(<= (+ main_offset 1024) main_length), 30781#(<= (+ main_offset 1020) main_length), 30782#(<= (+ main_offset 1016) main_length), 30783#(<= (+ main_offset 1012) main_length), 30784#(<= (+ main_offset 1008) main_length), 30785#(<= (+ main_offset 1004) main_length), 30786#(<= (+ main_offset 1000) main_length), 30787#(<= (+ main_offset 996) main_length), 30788#(<= (+ main_offset 992) main_length), 30789#(<= (+ main_offset 988) main_length), 30790#(<= (+ main_offset 984) main_length), 30791#(<= (+ main_offset 980) main_length), 30792#(<= (+ main_offset 976) main_length), 30793#(<= (+ main_offset 972) main_length), 30794#(<= (+ main_offset 968) main_length), 30795#(<= (+ main_offset 964) main_length), 30796#(<= (+ main_offset 960) main_length), 30797#(<= (+ main_offset 956) main_length), 30798#(<= (+ main_offset 952) main_length), 30799#(<= (+ main_offset 948) main_length), 30800#(<= (+ main_offset 944) main_length), 30801#(<= (+ main_offset 940) main_length), 30802#(<= (+ main_offset 936) main_length), 30803#(<= (+ main_offset 932) main_length), 30804#(<= (+ main_offset 928) main_length), 30805#(<= (+ main_offset 924) main_length), 30806#(<= (+ main_offset 920) main_length), 30807#(<= (+ main_offset 916) main_length), 30808#(<= (+ main_offset 912) main_length), 30809#(<= (+ main_offset 908) main_length), 30810#(<= (+ main_offset 904) main_length), 30811#(<= (+ main_offset 900) main_length), 30812#(<= (+ main_offset 896) main_length), 30813#(<= (+ main_offset 892) main_length), 30814#(<= (+ main_offset 888) main_length), 30815#(<= (+ main_offset 884) main_length), 30816#(<= (+ main_offset 880) main_length), 30817#(<= (+ main_offset 876) main_length), 30818#(<= (+ main_offset 872) main_length), 30819#(<= (+ main_offset 868) main_length), 30820#(<= (+ main_offset 864) main_length), 30821#(<= (+ main_offset 860) main_length), 30822#(<= (+ main_offset 856) main_length), 30823#(<= (+ main_offset 852) main_length), 30824#(<= (+ main_offset 848) main_length), 30825#(<= (+ main_offset 844) main_length), 30826#(<= (+ main_offset 840) main_length), 30827#(<= (+ main_offset 836) main_length), 30828#(<= (+ main_offset 832) main_length), 30829#(<= (+ main_offset 828) main_length), 30830#(<= (+ main_offset 824) main_length), 30831#(<= (+ main_offset 820) main_length), 30832#(<= (+ main_offset 816) main_length), 30833#(<= (+ main_offset 812) main_length), 30834#(<= (+ main_offset 808) main_length), 30835#(<= (+ main_offset 804) main_length), 30836#(<= (+ main_offset 800) main_length), 30837#(<= (+ main_offset 796) main_length), 30838#(<= (+ main_offset 792) main_length), 30839#(<= (+ main_offset 788) main_length), 30840#(<= (+ main_offset 784) main_length), 30841#(<= (+ main_offset 780) main_length), 30842#(<= (+ main_offset 776) main_length), 30843#(<= (+ main_offset 772) main_length), 30844#(<= (+ main_offset 768) main_length), 30845#(<= (+ main_offset 764) main_length), 30846#(<= (+ main_offset 760) main_length), 30847#(<= (+ main_offset 756) main_length)] [2018-07-23 13:52:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6480 backedges. 0 proven. 6480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,366 INFO L450 AbstractCegarLoop]: Interpolant automaton has 83 states [2018-07-23 13:52:01,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2018-07-23 13:52:01,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:01,367 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand 83 states. [2018-07-23 13:52:01,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,466 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2018-07-23 13:52:01,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-23 13:52:01,466 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 163 [2018-07-23 13:52:01,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,467 INFO L225 Difference]: With dead ends: 167 [2018-07-23 13:52:01,467 INFO L226 Difference]: Without dead ends: 166 [2018-07-23 13:52:01,467 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2018-07-23 13:52:01,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-07-23 13:52:01,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2018-07-23 13:52:01,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-07-23 13:52:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2018-07-23 13:52:01,472 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 163 [2018-07-23 13:52:01,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,473 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2018-07-23 13:52:01,473 INFO L472 AbstractCegarLoop]: Interpolant automaton has 83 states. [2018-07-23 13:52:01,473 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2018-07-23 13:52:01,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-23 13:52:01,474 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,474 INFO L357 BasicCegarLoop]: trace histogram [82, 81, 1, 1] [2018-07-23 13:52:01,474 INFO L414 AbstractCegarLoop]: === Iteration 82 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1262747198, now seen corresponding path program 81 times [2018-07-23 13:52:01,474 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 6642 backedges. 0 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,740 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:01,740 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2018-07-23 13:52:01,740 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,740 INFO L185 omatonBuilderFactory]: Interpolants [31521#true, 31522#false, 31523#(<= (+ main_offset 1048) main_length), 31524#(<= (+ main_offset 1044) main_length), 31525#(<= (+ main_offset 1040) main_length), 31526#(<= (+ main_offset 1036) main_length), 31527#(<= (+ main_offset 1032) main_length), 31528#(<= (+ main_offset 1028) main_length), 31529#(<= (+ main_offset 1024) main_length), 31530#(<= (+ main_offset 1020) main_length), 31531#(<= (+ main_offset 1016) main_length), 31532#(<= (+ main_offset 1012) main_length), 31533#(<= (+ main_offset 1008) main_length), 31534#(<= (+ main_offset 1004) main_length), 31535#(<= (+ main_offset 1000) main_length), 31536#(<= (+ main_offset 996) main_length), 31537#(<= (+ main_offset 992) main_length), 31538#(<= (+ main_offset 988) main_length), 31539#(<= (+ main_offset 984) main_length), 31540#(<= (+ main_offset 980) main_length), 31541#(<= (+ main_offset 976) main_length), 31542#(<= (+ main_offset 972) main_length), 31543#(<= (+ main_offset 968) main_length), 31544#(<= (+ main_offset 964) main_length), 31545#(<= (+ main_offset 960) main_length), 31546#(<= (+ main_offset 956) main_length), 31547#(<= (+ main_offset 952) main_length), 31548#(<= (+ main_offset 948) main_length), 31549#(<= (+ main_offset 944) main_length), 31550#(<= (+ main_offset 940) main_length), 31551#(<= (+ main_offset 936) main_length), 31552#(<= (+ main_offset 932) main_length), 31553#(<= (+ main_offset 928) main_length), 31554#(<= (+ main_offset 924) main_length), 31555#(<= (+ main_offset 920) main_length), 31556#(<= (+ main_offset 916) main_length), 31557#(<= (+ main_offset 912) main_length), 31558#(<= (+ main_offset 908) main_length), 31559#(<= (+ main_offset 904) main_length), 31560#(<= (+ main_offset 900) main_length), 31561#(<= (+ main_offset 896) main_length), 31562#(<= (+ main_offset 892) main_length), 31563#(<= (+ main_offset 888) main_length), 31564#(<= (+ main_offset 884) main_length), 31565#(<= (+ main_offset 880) main_length), 31566#(<= (+ main_offset 876) main_length), 31567#(<= (+ main_offset 872) main_length), 31568#(<= (+ main_offset 868) main_length), 31569#(<= (+ main_offset 864) main_length), 31570#(<= (+ main_offset 860) main_length), 31571#(<= (+ main_offset 856) main_length), 31572#(<= (+ main_offset 852) main_length), 31573#(<= (+ main_offset 848) main_length), 31574#(<= (+ main_offset 844) main_length), 31575#(<= (+ main_offset 840) main_length), 31576#(<= (+ main_offset 836) main_length), 31577#(<= (+ main_offset 832) main_length), 31578#(<= (+ main_offset 828) main_length), 31579#(<= (+ main_offset 824) main_length), 31580#(<= (+ main_offset 820) main_length), 31581#(<= (+ main_offset 816) main_length), 31582#(<= (+ main_offset 812) main_length), 31583#(<= (+ main_offset 808) main_length), 31584#(<= (+ main_offset 804) main_length), 31585#(<= (+ main_offset 800) main_length), 31586#(<= (+ main_offset 796) main_length), 31587#(<= (+ main_offset 792) main_length), 31588#(<= (+ main_offset 788) main_length), 31589#(<= (+ main_offset 784) main_length), 31590#(<= (+ main_offset 780) main_length), 31591#(<= (+ main_offset 776) main_length), 31592#(<= (+ main_offset 772) main_length), 31593#(<= (+ main_offset 768) main_length), 31594#(<= (+ main_offset 764) main_length), 31595#(<= (+ main_offset 760) main_length), 31596#(<= (+ main_offset 756) main_length), 31597#(<= (+ main_offset 752) main_length), 31598#(<= (+ main_offset 748) main_length), 31599#(<= (+ main_offset 744) main_length), 31600#(<= (+ main_offset 740) main_length), 31601#(<= (+ main_offset 736) main_length), 31602#(<= (+ main_offset 732) main_length), 31603#(<= (+ main_offset 728) main_length), 31604#(<= (+ main_offset 724) main_length)] [2018-07-23 13:52:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 6642 backedges. 0 proven. 6642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:01,741 INFO L450 AbstractCegarLoop]: Interpolant automaton has 84 states [2018-07-23 13:52:01,742 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2018-07-23 13:52:01,742 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:01,743 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand 84 states. [2018-07-23 13:52:01,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:01,844 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2018-07-23 13:52:01,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-07-23 13:52:01,844 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 165 [2018-07-23 13:52:01,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:01,845 INFO L225 Difference]: With dead ends: 169 [2018-07-23 13:52:01,845 INFO L226 Difference]: Without dead ends: 168 [2018-07-23 13:52:01,845 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2018-07-23 13:52:01,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-07-23 13:52:01,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2018-07-23 13:52:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2018-07-23 13:52:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 168 transitions. [2018-07-23 13:52:01,850 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 168 transitions. Word has length 165 [2018-07-23 13:52:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:01,850 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 168 transitions. [2018-07-23 13:52:01,850 INFO L472 AbstractCegarLoop]: Interpolant automaton has 84 states. [2018-07-23 13:52:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 168 transitions. [2018-07-23 13:52:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-07-23 13:52:01,851 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:01,851 INFO L357 BasicCegarLoop]: trace histogram [83, 82, 1, 1] [2018-07-23 13:52:01,851 INFO L414 AbstractCegarLoop]: === Iteration 83 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:01,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1975688580, now seen corresponding path program 82 times [2018-07-23 13:52:01,852 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6806 backedges. 0 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,102 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,102 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2018-07-23 13:52:02,102 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,103 INFO L185 omatonBuilderFactory]: Interpolants [32279#true, 32280#false, 32281#(<= (+ main_offset 1048) main_length), 32282#(<= (+ main_offset 1044) main_length), 32283#(<= (+ main_offset 1040) main_length), 32284#(<= (+ main_offset 1036) main_length), 32285#(<= (+ main_offset 1032) main_length), 32286#(<= (+ main_offset 1028) main_length), 32287#(<= (+ main_offset 1024) main_length), 32288#(<= (+ main_offset 1020) main_length), 32289#(<= (+ main_offset 1016) main_length), 32290#(<= (+ main_offset 1012) main_length), 32291#(<= (+ main_offset 1008) main_length), 32292#(<= (+ main_offset 1004) main_length), 32293#(<= (+ main_offset 1000) main_length), 32294#(<= (+ main_offset 996) main_length), 32295#(<= (+ main_offset 992) main_length), 32296#(<= (+ main_offset 988) main_length), 32297#(<= (+ main_offset 984) main_length), 32298#(<= (+ main_offset 980) main_length), 32299#(<= (+ main_offset 976) main_length), 32300#(<= (+ main_offset 972) main_length), 32301#(<= (+ main_offset 968) main_length), 32302#(<= (+ main_offset 964) main_length), 32303#(<= (+ main_offset 960) main_length), 32304#(<= (+ main_offset 956) main_length), 32305#(<= (+ main_offset 952) main_length), 32306#(<= (+ main_offset 948) main_length), 32307#(<= (+ main_offset 944) main_length), 32308#(<= (+ main_offset 940) main_length), 32309#(<= (+ main_offset 936) main_length), 32310#(<= (+ main_offset 932) main_length), 32311#(<= (+ main_offset 928) main_length), 32312#(<= (+ main_offset 924) main_length), 32313#(<= (+ main_offset 920) main_length), 32314#(<= (+ main_offset 916) main_length), 32315#(<= (+ main_offset 912) main_length), 32316#(<= (+ main_offset 908) main_length), 32317#(<= (+ main_offset 904) main_length), 32318#(<= (+ main_offset 900) main_length), 32319#(<= (+ main_offset 896) main_length), 32320#(<= (+ main_offset 892) main_length), 32321#(<= (+ main_offset 888) main_length), 32322#(<= (+ main_offset 884) main_length), 32323#(<= (+ main_offset 880) main_length), 32324#(<= (+ main_offset 876) main_length), 32325#(<= (+ main_offset 872) main_length), 32326#(<= (+ main_offset 868) main_length), 32327#(<= (+ main_offset 864) main_length), 32328#(<= (+ main_offset 860) main_length), 32329#(<= (+ main_offset 856) main_length), 32330#(<= (+ main_offset 852) main_length), 32331#(<= (+ main_offset 848) main_length), 32332#(<= (+ main_offset 844) main_length), 32333#(<= (+ main_offset 840) main_length), 32334#(<= (+ main_offset 836) main_length), 32335#(<= (+ main_offset 832) main_length), 32336#(<= (+ main_offset 828) main_length), 32337#(<= (+ main_offset 824) main_length), 32338#(<= (+ main_offset 820) main_length), 32339#(<= (+ main_offset 816) main_length), 32340#(<= (+ main_offset 812) main_length), 32341#(<= (+ main_offset 808) main_length), 32342#(<= (+ main_offset 804) main_length), 32343#(<= (+ main_offset 800) main_length), 32344#(<= (+ main_offset 796) main_length), 32345#(<= (+ main_offset 792) main_length), 32346#(<= (+ main_offset 788) main_length), 32347#(<= (+ main_offset 784) main_length), 32348#(<= (+ main_offset 780) main_length), 32349#(<= (+ main_offset 776) main_length), 32350#(<= (+ main_offset 772) main_length), 32351#(<= (+ main_offset 768) main_length), 32352#(<= (+ main_offset 764) main_length), 32353#(<= (+ main_offset 760) main_length), 32354#(<= (+ main_offset 756) main_length), 32355#(<= (+ main_offset 752) main_length), 32356#(<= (+ main_offset 748) main_length), 32357#(<= (+ main_offset 744) main_length), 32358#(<= (+ main_offset 740) main_length), 32359#(<= (+ main_offset 736) main_length), 32360#(<= (+ main_offset 732) main_length), 32361#(<= (+ main_offset 728) main_length), 32362#(<= (+ main_offset 724) main_length), 32363#(<= (+ main_offset 720) main_length)] [2018-07-23 13:52:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 6806 backedges. 0 proven. 6806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,103 INFO L450 AbstractCegarLoop]: Interpolant automaton has 85 states [2018-07-23 13:52:02,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2018-07-23 13:52:02,104 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2018-07-23 13:52:02,105 INFO L87 Difference]: Start difference. First operand 168 states and 168 transitions. Second operand 85 states. [2018-07-23 13:52:02,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:02,209 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2018-07-23 13:52:02,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-07-23 13:52:02,209 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 167 [2018-07-23 13:52:02,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:02,210 INFO L225 Difference]: With dead ends: 171 [2018-07-23 13:52:02,210 INFO L226 Difference]: Without dead ends: 170 [2018-07-23 13:52:02,210 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 13:52:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-07-23 13:52:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-07-23 13:52:02,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-07-23 13:52:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2018-07-23 13:52:02,215 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 167 [2018-07-23 13:52:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,215 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2018-07-23 13:52:02,215 INFO L472 AbstractCegarLoop]: Interpolant automaton has 85 states. [2018-07-23 13:52:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2018-07-23 13:52:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-07-23 13:52:02,216 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,216 INFO L357 BasicCegarLoop]: trace histogram [84, 83, 1, 1] [2018-07-23 13:52:02,216 INFO L414 AbstractCegarLoop]: === Iteration 84 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,216 INFO L82 PathProgramCache]: Analyzing trace with hash 261181638, now seen corresponding path program 83 times [2018-07-23 13:52:02,217 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 0 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,469 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,469 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2018-07-23 13:52:02,469 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,469 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 13:52:02,469 INFO L185 omatonBuilderFactory]: Interpolants [33046#true, 33047#false, 33048#(<= (+ main_offset 1048) main_length), 33049#(<= (+ main_offset 1044) main_length), 33050#(<= (+ main_offset 1040) main_length), 33051#(<= (+ main_offset 1036) main_length), 33052#(<= (+ main_offset 1032) main_length), 33053#(<= (+ main_offset 1028) main_length), 33054#(<= (+ main_offset 1024) main_length), 33055#(<= (+ main_offset 1020) main_length), 33056#(<= (+ main_offset 1016) main_length), 33057#(<= (+ main_offset 1012) main_length), 33058#(<= (+ main_offset 1008) main_length), 33059#(<= (+ main_offset 1004) main_length), 33060#(<= (+ main_offset 1000) main_length), 33061#(<= (+ main_offset 996) main_length), 33062#(<= (+ main_offset 992) main_length), 33063#(<= (+ main_offset 988) main_length), 33064#(<= (+ main_offset 984) main_length), 33065#(<= (+ main_offset 980) main_length), 33066#(<= (+ main_offset 976) main_length), 33067#(<= (+ main_offset 972) main_length), 33068#(<= (+ main_offset 968) main_length), 33069#(<= (+ main_offset 964) main_length), 33070#(<= (+ main_offset 960) main_length), 33071#(<= (+ main_offset 956) main_length), 33072#(<= (+ main_offset 952) main_length), 33073#(<= (+ main_offset 948) main_length), 33074#(<= (+ main_offset 944) main_length), 33075#(<= (+ main_offset 940) main_length), 33076#(<= (+ main_offset 936) main_length), 33077#(<= (+ main_offset 932) main_length), 33078#(<= (+ main_offset 928) main_length), 33079#(<= (+ main_offset 924) main_length), 33080#(<= (+ main_offset 920) main_length), 33081#(<= (+ main_offset 916) main_length), 33082#(<= (+ main_offset 912) main_length), 33083#(<= (+ main_offset 908) main_length), 33084#(<= (+ main_offset 904) main_length), 33085#(<= (+ main_offset 900) main_length), 33086#(<= (+ main_offset 896) main_length), 33087#(<= (+ main_offset 892) main_length), 33088#(<= (+ main_offset 888) main_length), 33089#(<= (+ main_offset 884) main_length), 33090#(<= (+ main_offset 880) main_length), 33091#(<= (+ main_offset 876) main_length), 33092#(<= (+ main_offset 872) main_length), 33093#(<= (+ main_offset 868) main_length), 33094#(<= (+ main_offset 864) main_length), 33095#(<= (+ main_offset 860) main_length), 33096#(<= (+ main_offset 856) main_length), 33097#(<= (+ main_offset 852) main_length), 33098#(<= (+ main_offset 848) main_length), 33099#(<= (+ main_offset 844) main_length), 33100#(<= (+ main_offset 840) main_length), 33101#(<= (+ main_offset 836) main_length), 33102#(<= (+ main_offset 832) main_length), 33103#(<= (+ main_offset 828) main_length), 33104#(<= (+ main_offset 824) main_length), 33105#(<= (+ main_offset 820) main_length), 33106#(<= (+ main_offset 816) main_length), 33107#(<= (+ main_offset 812) main_length), 33108#(<= (+ main_offset 808) main_length), 33109#(<= (+ main_offset 804) main_length), 33110#(<= (+ main_offset 800) main_length), 33111#(<= (+ main_offset 796) main_length), 33112#(<= (+ main_offset 792) main_length), 33113#(<= (+ main_offset 788) main_length), 33114#(<= (+ main_offset 784) main_length), 33115#(<= (+ main_offset 780) main_length), 33116#(<= (+ main_offset 776) main_length), 33117#(<= (+ main_offset 772) main_length), 33118#(<= (+ main_offset 768) main_length), 33119#(<= (+ main_offset 764) main_length), 33120#(<= (+ main_offset 760) main_length), 33121#(<= (+ main_offset 756) main_length), 33122#(<= (+ main_offset 752) main_length), 33123#(<= (+ main_offset 748) main_length), 33124#(<= (+ main_offset 744) main_length), 33125#(<= (+ main_offset 740) main_length), 33126#(<= (+ main_offset 736) main_length), 33127#(<= (+ main_offset 732) main_length), 33128#(<= (+ main_offset 728) main_length), 33129#(<= (+ main_offset 724) main_length), 33130#(<= (+ main_offset 720) main_length), 33131#(<= (+ main_offset 716) main_length)] [2018-07-23 13:52:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6972 backedges. 0 proven. 6972 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:02,470 INFO L450 AbstractCegarLoop]: Interpolant automaton has 86 states [2018-07-23 13:52:02,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2018-07-23 13:52:02,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:02,471 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand 86 states. [2018-07-23 13:52:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:02,569 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2018-07-23 13:52:02,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-07-23 13:52:02,569 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 169 [2018-07-23 13:52:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:02,570 INFO L225 Difference]: With dead ends: 173 [2018-07-23 13:52:02,570 INFO L226 Difference]: Without dead ends: 172 [2018-07-23 13:52:02,570 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2018-07-23 13:52:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-07-23 13:52:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-07-23 13:52:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-07-23 13:52:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2018-07-23 13:52:02,574 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 169 [2018-07-23 13:52:02,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:02,574 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2018-07-23 13:52:02,574 INFO L472 AbstractCegarLoop]: Interpolant automaton has 86 states. [2018-07-23 13:52:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2018-07-23 13:52:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-07-23 13:52:02,575 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:02,575 INFO L357 BasicCegarLoop]: trace histogram [85, 84, 1, 1] [2018-07-23 13:52:02,575 INFO L414 AbstractCegarLoop]: === Iteration 85 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:02,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1887452040, now seen corresponding path program 84 times [2018-07-23 13:52:02,575 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:02,887 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 13:52:02,887 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:02,887 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2018-07-23 13:52:02,887 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:02,887 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 13:52:02,888 INFO L185 omatonBuilderFactory]: Interpolants [33822#true, 33823#false, 33824#(<= (+ main_offset 1048) main_length), 33825#(<= (+ main_offset 1044) main_length), 33826#(<= (+ main_offset 1040) main_length), 33827#(<= (+ main_offset 1036) main_length), 33828#(<= (+ main_offset 1032) main_length), 33829#(<= (+ main_offset 1028) main_length), 33830#(<= (+ main_offset 1024) main_length), 33831#(<= (+ main_offset 1020) main_length), 33832#(<= (+ main_offset 1016) main_length), 33833#(<= (+ main_offset 1012) main_length), 33834#(<= (+ main_offset 1008) main_length), 33835#(<= (+ main_offset 1004) main_length), 33836#(<= (+ main_offset 1000) main_length), 33837#(<= (+ main_offset 996) main_length), 33838#(<= (+ main_offset 992) main_length), 33839#(<= (+ main_offset 988) main_length), 33840#(<= (+ main_offset 984) main_length), 33841#(<= (+ main_offset 980) main_length), 33842#(<= (+ main_offset 976) main_length), 33843#(<= (+ main_offset 972) main_length), 33844#(<= (+ main_offset 968) main_length), 33845#(<= (+ main_offset 964) main_length), 33846#(<= (+ main_offset 960) main_length), 33847#(<= (+ main_offset 956) main_length), 33848#(<= (+ main_offset 952) main_length), 33849#(<= (+ main_offset 948) main_length), 33850#(<= (+ main_offset 944) main_length), 33851#(<= (+ main_offset 940) main_length), 33852#(<= (+ main_offset 936) main_length), 33853#(<= (+ main_offset 932) main_length), 33854#(<= (+ main_offset 928) main_length), 33855#(<= (+ main_offset 924) main_length), 33856#(<= (+ main_offset 920) main_length), 33857#(<= (+ main_offset 916) main_length), 33858#(<= (+ main_offset 912) main_length), 33859#(<= (+ main_offset 908) main_length), 33860#(<= (+ main_offset 904) main_length), 33861#(<= (+ main_offset 900) main_length), 33862#(<= (+ main_offset 896) main_length), 33863#(<= (+ main_offset 892) main_length), 33864#(<= (+ main_offset 888) main_length), 33865#(<= (+ main_offset 884) main_length), 33866#(<= (+ main_offset 880) main_length), 33867#(<= (+ main_offset 876) main_length), 33868#(<= (+ main_offset 872) main_length), 33869#(<= (+ main_offset 868) main_length), 33870#(<= (+ main_offset 864) main_length), 33871#(<= (+ main_offset 860) main_length), 33872#(<= (+ main_offset 856) main_length), 33873#(<= (+ main_offset 852) main_length), 33874#(<= (+ main_offset 848) main_length), 33875#(<= (+ main_offset 844) main_length), 33876#(<= (+ main_offset 840) main_length), 33877#(<= (+ main_offset 836) main_length), 33878#(<= (+ main_offset 832) main_length), 33879#(<= (+ main_offset 828) main_length), 33880#(<= (+ main_offset 824) main_length), 33881#(<= (+ main_offset 820) main_length), 33882#(<= (+ main_offset 816) main_length), 33883#(<= (+ main_offset 812) main_length), 33884#(<= (+ main_offset 808) main_length), 33885#(<= (+ main_offset 804) main_length), 33886#(<= (+ main_offset 800) main_length), 33887#(<= (+ main_offset 796) main_length), 33888#(<= (+ main_offset 792) main_length), 33889#(<= (+ main_offset 788) main_length), 33890#(<= (+ main_offset 784) main_length), 33891#(<= (+ main_offset 780) main_length), 33892#(<= (+ main_offset 776) main_length), 33893#(<= (+ main_offset 772) main_length), 33894#(<= (+ main_offset 768) main_length), 33895#(<= (+ main_offset 764) main_length), 33896#(<= (+ main_offset 760) main_length), 33897#(<= (+ main_offset 756) main_length), 33898#(<= (+ main_offset 752) main_length), 33899#(<= (+ main_offset 748) main_length), 33900#(<= (+ main_offset 744) main_length), 33901#(<= (+ main_offset 740) main_length), 33902#(<= (+ main_offset 736) main_length), 33903#(<= (+ main_offset 732) main_length), 33904#(<= (+ main_offset 728) main_length), 33905#(<= (+ main_offset 724) main_length), 33906#(<= (+ main_offset 720) main_length), 33907#(<= (+ main_offset 716) main_length), 33908#(<= (+ main_offset 712) main_length)] [2018-07-23 13:52:02,888 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 13:52:02,888 INFO L450 AbstractCegarLoop]: Interpolant automaton has 87 states [2018-07-23 13:52:02,910 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2018-07-23 13:52:02,910 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2018-07-23 13:52:02,911 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand 87 states. [2018-07-23 13:52:03,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,033 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2018-07-23 13:52:03,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-07-23 13:52:03,033 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 171 [2018-07-23 13:52:03,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,034 INFO L225 Difference]: With dead ends: 175 [2018-07-23 13:52:03,035 INFO L226 Difference]: Without dead ends: 174 [2018-07-23 13:52:03,035 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 13:52:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-07-23 13:52:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-07-23 13:52:03,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-07-23 13:52:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2018-07-23 13:52:03,040 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 171 [2018-07-23 13:52:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,040 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2018-07-23 13:52:03,040 INFO L472 AbstractCegarLoop]: Interpolant automaton has 87 states. [2018-07-23 13:52:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2018-07-23 13:52:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2018-07-23 13:52:03,041 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,042 INFO L357 BasicCegarLoop]: trace histogram [86, 85, 1, 1] [2018-07-23 13:52:03,042 INFO L414 AbstractCegarLoop]: === Iteration 86 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1365212618, now seen corresponding path program 85 times [2018-07-23 13:52:03,042 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,342 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:03,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2018-07-23 13:52:03,343 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,343 INFO L185 omatonBuilderFactory]: Interpolants [34688#(<= (+ main_offset 732) main_length), 34689#(<= (+ main_offset 728) main_length), 34690#(<= (+ main_offset 724) main_length), 34691#(<= (+ main_offset 720) main_length), 34692#(<= (+ main_offset 716) main_length), 34693#(<= (+ main_offset 712) main_length), 34694#(<= (+ main_offset 708) main_length), 34607#true, 34608#false, 34609#(<= (+ main_offset 1048) main_length), 34610#(<= (+ main_offset 1044) main_length), 34611#(<= (+ main_offset 1040) main_length), 34612#(<= (+ main_offset 1036) main_length), 34613#(<= (+ main_offset 1032) main_length), 34614#(<= (+ main_offset 1028) main_length), 34615#(<= (+ main_offset 1024) main_length), 34616#(<= (+ main_offset 1020) main_length), 34617#(<= (+ main_offset 1016) main_length), 34618#(<= (+ main_offset 1012) main_length), 34619#(<= (+ main_offset 1008) main_length), 34620#(<= (+ main_offset 1004) main_length), 34621#(<= (+ main_offset 1000) main_length), 34622#(<= (+ main_offset 996) main_length), 34623#(<= (+ main_offset 992) main_length), 34624#(<= (+ main_offset 988) main_length), 34625#(<= (+ main_offset 984) main_length), 34626#(<= (+ main_offset 980) main_length), 34627#(<= (+ main_offset 976) main_length), 34628#(<= (+ main_offset 972) main_length), 34629#(<= (+ main_offset 968) main_length), 34630#(<= (+ main_offset 964) main_length), 34631#(<= (+ main_offset 960) main_length), 34632#(<= (+ main_offset 956) main_length), 34633#(<= (+ main_offset 952) main_length), 34634#(<= (+ main_offset 948) main_length), 34635#(<= (+ main_offset 944) main_length), 34636#(<= (+ main_offset 940) main_length), 34637#(<= (+ main_offset 936) main_length), 34638#(<= (+ main_offset 932) main_length), 34639#(<= (+ main_offset 928) main_length), 34640#(<= (+ main_offset 924) main_length), 34641#(<= (+ main_offset 920) main_length), 34642#(<= (+ main_offset 916) main_length), 34643#(<= (+ main_offset 912) main_length), 34644#(<= (+ main_offset 908) main_length), 34645#(<= (+ main_offset 904) main_length), 34646#(<= (+ main_offset 900) main_length), 34647#(<= (+ main_offset 896) main_length), 34648#(<= (+ main_offset 892) main_length), 34649#(<= (+ main_offset 888) main_length), 34650#(<= (+ main_offset 884) main_length), 34651#(<= (+ main_offset 880) main_length), 34652#(<= (+ main_offset 876) main_length), 34653#(<= (+ main_offset 872) main_length), 34654#(<= (+ main_offset 868) main_length), 34655#(<= (+ main_offset 864) main_length), 34656#(<= (+ main_offset 860) main_length), 34657#(<= (+ main_offset 856) main_length), 34658#(<= (+ main_offset 852) main_length), 34659#(<= (+ main_offset 848) main_length), 34660#(<= (+ main_offset 844) main_length), 34661#(<= (+ main_offset 840) main_length), 34662#(<= (+ main_offset 836) main_length), 34663#(<= (+ main_offset 832) main_length), 34664#(<= (+ main_offset 828) main_length), 34665#(<= (+ main_offset 824) main_length), 34666#(<= (+ main_offset 820) main_length), 34667#(<= (+ main_offset 816) main_length), 34668#(<= (+ main_offset 812) main_length), 34669#(<= (+ main_offset 808) main_length), 34670#(<= (+ main_offset 804) main_length), 34671#(<= (+ main_offset 800) main_length), 34672#(<= (+ main_offset 796) main_length), 34673#(<= (+ main_offset 792) main_length), 34674#(<= (+ main_offset 788) main_length), 34675#(<= (+ main_offset 784) main_length), 34676#(<= (+ main_offset 780) main_length), 34677#(<= (+ main_offset 776) main_length), 34678#(<= (+ main_offset 772) main_length), 34679#(<= (+ main_offset 768) main_length), 34680#(<= (+ main_offset 764) main_length), 34681#(<= (+ main_offset 760) main_length), 34682#(<= (+ main_offset 756) main_length), 34683#(<= (+ main_offset 752) main_length), 34684#(<= (+ main_offset 748) main_length), 34685#(<= (+ main_offset 744) main_length), 34686#(<= (+ main_offset 740) main_length), 34687#(<= (+ main_offset 736) main_length)] [2018-07-23 13:52:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7310 backedges. 0 proven. 7310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,344 INFO L450 AbstractCegarLoop]: Interpolant automaton has 88 states [2018-07-23 13:52:03,345 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2018-07-23 13:52:03,345 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2018-07-23 13:52:03,345 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 88 states. [2018-07-23 13:52:03,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,461 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2018-07-23 13:52:03,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2018-07-23 13:52:03,462 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 173 [2018-07-23 13:52:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,463 INFO L225 Difference]: With dead ends: 177 [2018-07-23 13:52:03,463 INFO L226 Difference]: Without dead ends: 176 [2018-07-23 13:52:03,464 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 13:52:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-07-23 13:52:03,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2018-07-23 13:52:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-07-23 13:52:03,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2018-07-23 13:52:03,468 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 173 [2018-07-23 13:52:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,469 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2018-07-23 13:52:03,469 INFO L472 AbstractCegarLoop]: Interpolant automaton has 88 states. [2018-07-23 13:52:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2018-07-23 13:52:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-07-23 13:52:03,470 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,470 INFO L357 BasicCegarLoop]: trace histogram [87, 86, 1, 1] [2018-07-23 13:52:03,470 INFO L414 AbstractCegarLoop]: === Iteration 87 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash 2004301708, now seen corresponding path program 86 times [2018-07-23 13:52:03,470 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 7482 backedges. 0 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,751 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:03,751 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2018-07-23 13:52:03,751 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,752 INFO L185 omatonBuilderFactory]: Interpolants [35456#(<= (+ main_offset 836) main_length), 35457#(<= (+ main_offset 832) main_length), 35458#(<= (+ main_offset 828) main_length), 35459#(<= (+ main_offset 824) main_length), 35460#(<= (+ main_offset 820) main_length), 35461#(<= (+ main_offset 816) main_length), 35462#(<= (+ main_offset 812) main_length), 35463#(<= (+ main_offset 808) main_length), 35464#(<= (+ main_offset 804) main_length), 35465#(<= (+ main_offset 800) main_length), 35466#(<= (+ main_offset 796) main_length), 35467#(<= (+ main_offset 792) main_length), 35468#(<= (+ main_offset 788) main_length), 35469#(<= (+ main_offset 784) main_length), 35470#(<= (+ main_offset 780) main_length), 35471#(<= (+ main_offset 776) main_length), 35472#(<= (+ main_offset 772) main_length), 35473#(<= (+ main_offset 768) main_length), 35474#(<= (+ main_offset 764) main_length), 35475#(<= (+ main_offset 760) main_length), 35476#(<= (+ main_offset 756) main_length), 35477#(<= (+ main_offset 752) main_length), 35478#(<= (+ main_offset 748) main_length), 35479#(<= (+ main_offset 744) main_length), 35480#(<= (+ main_offset 740) main_length), 35481#(<= (+ main_offset 736) main_length), 35482#(<= (+ main_offset 732) main_length), 35483#(<= (+ main_offset 728) main_length), 35484#(<= (+ main_offset 724) main_length), 35485#(<= (+ main_offset 720) main_length), 35486#(<= (+ main_offset 716) main_length), 35487#(<= (+ main_offset 712) main_length), 35488#(<= (+ main_offset 708) main_length), 35489#(<= (+ main_offset 704) main_length), 35401#true, 35402#false, 35403#(<= (+ main_offset 1048) main_length), 35404#(<= (+ main_offset 1044) main_length), 35405#(<= (+ main_offset 1040) main_length), 35406#(<= (+ main_offset 1036) main_length), 35407#(<= (+ main_offset 1032) main_length), 35408#(<= (+ main_offset 1028) main_length), 35409#(<= (+ main_offset 1024) main_length), 35410#(<= (+ main_offset 1020) main_length), 35411#(<= (+ main_offset 1016) main_length), 35412#(<= (+ main_offset 1012) main_length), 35413#(<= (+ main_offset 1008) main_length), 35414#(<= (+ main_offset 1004) main_length), 35415#(<= (+ main_offset 1000) main_length), 35416#(<= (+ main_offset 996) main_length), 35417#(<= (+ main_offset 992) main_length), 35418#(<= (+ main_offset 988) main_length), 35419#(<= (+ main_offset 984) main_length), 35420#(<= (+ main_offset 980) main_length), 35421#(<= (+ main_offset 976) main_length), 35422#(<= (+ main_offset 972) main_length), 35423#(<= (+ main_offset 968) main_length), 35424#(<= (+ main_offset 964) main_length), 35425#(<= (+ main_offset 960) main_length), 35426#(<= (+ main_offset 956) main_length), 35427#(<= (+ main_offset 952) main_length), 35428#(<= (+ main_offset 948) main_length), 35429#(<= (+ main_offset 944) main_length), 35430#(<= (+ main_offset 940) main_length), 35431#(<= (+ main_offset 936) main_length), 35432#(<= (+ main_offset 932) main_length), 35433#(<= (+ main_offset 928) main_length), 35434#(<= (+ main_offset 924) main_length), 35435#(<= (+ main_offset 920) main_length), 35436#(<= (+ main_offset 916) main_length), 35437#(<= (+ main_offset 912) main_length), 35438#(<= (+ main_offset 908) main_length), 35439#(<= (+ main_offset 904) main_length), 35440#(<= (+ main_offset 900) main_length), 35441#(<= (+ main_offset 896) main_length), 35442#(<= (+ main_offset 892) main_length), 35443#(<= (+ main_offset 888) main_length), 35444#(<= (+ main_offset 884) main_length), 35445#(<= (+ main_offset 880) main_length), 35446#(<= (+ main_offset 876) main_length), 35447#(<= (+ main_offset 872) main_length), 35448#(<= (+ main_offset 868) main_length), 35449#(<= (+ main_offset 864) main_length), 35450#(<= (+ main_offset 860) main_length), 35451#(<= (+ main_offset 856) main_length), 35452#(<= (+ main_offset 852) main_length), 35453#(<= (+ main_offset 848) main_length), 35454#(<= (+ main_offset 844) main_length), 35455#(<= (+ main_offset 840) main_length)] [2018-07-23 13:52:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7482 backedges. 0 proven. 7482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:03,753 INFO L450 AbstractCegarLoop]: Interpolant automaton has 89 states [2018-07-23 13:52:03,753 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2018-07-23 13:52:03,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:03,754 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand 89 states. [2018-07-23 13:52:03,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:03,816 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2018-07-23 13:52:03,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-07-23 13:52:03,817 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 175 [2018-07-23 13:52:03,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:03,818 INFO L225 Difference]: With dead ends: 179 [2018-07-23 13:52:03,818 INFO L226 Difference]: Without dead ends: 178 [2018-07-23 13:52:03,819 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2018-07-23 13:52:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-07-23 13:52:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2018-07-23 13:52:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-07-23 13:52:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-07-23 13:52:03,824 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 175 [2018-07-23 13:52:03,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:03,824 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-07-23 13:52:03,824 INFO L472 AbstractCegarLoop]: Interpolant automaton has 89 states. [2018-07-23 13:52:03,824 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-07-23 13:52:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-07-23 13:52:03,825 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:03,825 INFO L357 BasicCegarLoop]: trace histogram [88, 87, 1, 1] [2018-07-23 13:52:03,825 INFO L414 AbstractCegarLoop]: === Iteration 88 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:03,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1988593870, now seen corresponding path program 87 times [2018-07-23 13:52:03,826 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,170 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,171 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2018-07-23 13:52:04,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,171 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 13:52:04,171 INFO L185 omatonBuilderFactory]: Interpolants [36224#(<= (+ main_offset 976) main_length), 36225#(<= (+ main_offset 972) main_length), 36226#(<= (+ main_offset 968) main_length), 36227#(<= (+ main_offset 964) main_length), 36228#(<= (+ main_offset 960) main_length), 36229#(<= (+ main_offset 956) main_length), 36230#(<= (+ main_offset 952) main_length), 36231#(<= (+ main_offset 948) main_length), 36232#(<= (+ main_offset 944) main_length), 36233#(<= (+ main_offset 940) main_length), 36234#(<= (+ main_offset 936) main_length), 36235#(<= (+ main_offset 932) main_length), 36236#(<= (+ main_offset 928) main_length), 36237#(<= (+ main_offset 924) main_length), 36238#(<= (+ main_offset 920) main_length), 36239#(<= (+ main_offset 916) main_length), 36240#(<= (+ main_offset 912) main_length), 36241#(<= (+ main_offset 908) main_length), 36242#(<= (+ main_offset 904) main_length), 36243#(<= (+ main_offset 900) main_length), 36244#(<= (+ main_offset 896) main_length), 36245#(<= (+ main_offset 892) main_length), 36246#(<= (+ main_offset 888) main_length), 36247#(<= (+ main_offset 884) main_length), 36248#(<= (+ main_offset 880) main_length), 36249#(<= (+ main_offset 876) main_length), 36250#(<= (+ main_offset 872) main_length), 36251#(<= (+ main_offset 868) main_length), 36252#(<= (+ main_offset 864) main_length), 36253#(<= (+ main_offset 860) main_length), 36254#(<= (+ main_offset 856) main_length), 36255#(<= (+ main_offset 852) main_length), 36256#(<= (+ main_offset 848) main_length), 36257#(<= (+ main_offset 844) main_length), 36258#(<= (+ main_offset 840) main_length), 36259#(<= (+ main_offset 836) main_length), 36260#(<= (+ main_offset 832) main_length), 36261#(<= (+ main_offset 828) main_length), 36262#(<= (+ main_offset 824) main_length), 36263#(<= (+ main_offset 820) main_length), 36264#(<= (+ main_offset 816) main_length), 36265#(<= (+ main_offset 812) main_length), 36266#(<= (+ main_offset 808) main_length), 36267#(<= (+ main_offset 804) main_length), 36268#(<= (+ main_offset 800) main_length), 36269#(<= (+ main_offset 796) main_length), 36270#(<= (+ main_offset 792) main_length), 36271#(<= (+ main_offset 788) main_length), 36272#(<= (+ main_offset 784) main_length), 36273#(<= (+ main_offset 780) main_length), 36274#(<= (+ main_offset 776) main_length), 36275#(<= (+ main_offset 772) main_length), 36276#(<= (+ main_offset 768) main_length), 36277#(<= (+ main_offset 764) main_length), 36278#(<= (+ main_offset 760) main_length), 36279#(<= (+ main_offset 756) main_length), 36280#(<= (+ main_offset 752) main_length), 36281#(<= (+ main_offset 748) main_length), 36282#(<= (+ main_offset 744) main_length), 36283#(<= (+ main_offset 740) main_length), 36284#(<= (+ main_offset 736) main_length), 36285#(<= (+ main_offset 732) main_length), 36286#(<= (+ main_offset 728) main_length), 36287#(<= (+ main_offset 724) main_length), 36288#(<= (+ main_offset 720) main_length), 36289#(<= (+ main_offset 716) main_length), 36290#(<= (+ main_offset 712) main_length), 36291#(<= (+ main_offset 708) main_length), 36292#(<= (+ main_offset 704) main_length), 36293#(<= (+ main_offset 700) main_length), 36204#true, 36205#false, 36206#(<= (+ main_offset 1048) main_length), 36207#(<= (+ main_offset 1044) main_length), 36208#(<= (+ main_offset 1040) main_length), 36209#(<= (+ main_offset 1036) main_length), 36210#(<= (+ main_offset 1032) main_length), 36211#(<= (+ main_offset 1028) main_length), 36212#(<= (+ main_offset 1024) main_length), 36213#(<= (+ main_offset 1020) main_length), 36214#(<= (+ main_offset 1016) main_length), 36215#(<= (+ main_offset 1012) main_length), 36216#(<= (+ main_offset 1008) main_length), 36217#(<= (+ main_offset 1004) main_length), 36218#(<= (+ main_offset 1000) main_length), 36219#(<= (+ main_offset 996) main_length), 36220#(<= (+ main_offset 992) main_length), 36221#(<= (+ main_offset 988) main_length), 36222#(<= (+ main_offset 984) main_length), 36223#(<= (+ main_offset 980) main_length)] [2018-07-23 13:52:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 7656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 90 states [2018-07-23 13:52:04,172 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2018-07-23 13:52:04,173 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:04,173 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 90 states. [2018-07-23 13:52:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,273 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2018-07-23 13:52:04,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2018-07-23 13:52:04,273 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 177 [2018-07-23 13:52:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,275 INFO L225 Difference]: With dead ends: 181 [2018-07-23 13:52:04,275 INFO L226 Difference]: Without dead ends: 180 [2018-07-23 13:52:04,275 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2018-07-23 13:52:04,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-07-23 13:52:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2018-07-23 13:52:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-07-23 13:52:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2018-07-23 13:52:04,279 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 177 [2018-07-23 13:52:04,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,280 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2018-07-23 13:52:04,280 INFO L472 AbstractCegarLoop]: Interpolant automaton has 90 states. [2018-07-23 13:52:04,280 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2018-07-23 13:52:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-07-23 13:52:04,281 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,281 INFO L357 BasicCegarLoop]: trace histogram [89, 88, 1, 1] [2018-07-23 13:52:04,281 INFO L414 AbstractCegarLoop]: === Iteration 89 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash -221736560, now seen corresponding path program 88 times [2018-07-23 13:52:04,282 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7832 backedges. 0 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,584 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:04,584 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2018-07-23 13:52:04,584 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,584 INFO L185 omatonBuilderFactory]: Interpolants [37016#true, 37017#false, 37018#(<= (+ main_offset 1048) main_length), 37019#(<= (+ main_offset 1044) main_length), 37020#(<= (+ main_offset 1040) main_length), 37021#(<= (+ main_offset 1036) main_length), 37022#(<= (+ main_offset 1032) main_length), 37023#(<= (+ main_offset 1028) main_length), 37024#(<= (+ main_offset 1024) main_length), 37025#(<= (+ main_offset 1020) main_length), 37026#(<= (+ main_offset 1016) main_length), 37027#(<= (+ main_offset 1012) main_length), 37028#(<= (+ main_offset 1008) main_length), 37029#(<= (+ main_offset 1004) main_length), 37030#(<= (+ main_offset 1000) main_length), 37031#(<= (+ main_offset 996) main_length), 37032#(<= (+ main_offset 992) main_length), 37033#(<= (+ main_offset 988) main_length), 37034#(<= (+ main_offset 984) main_length), 37035#(<= (+ main_offset 980) main_length), 37036#(<= (+ main_offset 976) main_length), 37037#(<= (+ main_offset 972) main_length), 37038#(<= (+ main_offset 968) main_length), 37039#(<= (+ main_offset 964) main_length), 37040#(<= (+ main_offset 960) main_length), 37041#(<= (+ main_offset 956) main_length), 37042#(<= (+ main_offset 952) main_length), 37043#(<= (+ main_offset 948) main_length), 37044#(<= (+ main_offset 944) main_length), 37045#(<= (+ main_offset 940) main_length), 37046#(<= (+ main_offset 936) main_length), 37047#(<= (+ main_offset 932) main_length), 37048#(<= (+ main_offset 928) main_length), 37049#(<= (+ main_offset 924) main_length), 37050#(<= (+ main_offset 920) main_length), 37051#(<= (+ main_offset 916) main_length), 37052#(<= (+ main_offset 912) main_length), 37053#(<= (+ main_offset 908) main_length), 37054#(<= (+ main_offset 904) main_length), 37055#(<= (+ main_offset 900) main_length), 37056#(<= (+ main_offset 896) main_length), 37057#(<= (+ main_offset 892) main_length), 37058#(<= (+ main_offset 888) main_length), 37059#(<= (+ main_offset 884) main_length), 37060#(<= (+ main_offset 880) main_length), 37061#(<= (+ main_offset 876) main_length), 37062#(<= (+ main_offset 872) main_length), 37063#(<= (+ main_offset 868) main_length), 37064#(<= (+ main_offset 864) main_length), 37065#(<= (+ main_offset 860) main_length), 37066#(<= (+ main_offset 856) main_length), 37067#(<= (+ main_offset 852) main_length), 37068#(<= (+ main_offset 848) main_length), 37069#(<= (+ main_offset 844) main_length), 37070#(<= (+ main_offset 840) main_length), 37071#(<= (+ main_offset 836) main_length), 37072#(<= (+ main_offset 832) main_length), 37073#(<= (+ main_offset 828) main_length), 37074#(<= (+ main_offset 824) main_length), 37075#(<= (+ main_offset 820) main_length), 37076#(<= (+ main_offset 816) main_length), 37077#(<= (+ main_offset 812) main_length), 37078#(<= (+ main_offset 808) main_length), 37079#(<= (+ main_offset 804) main_length), 37080#(<= (+ main_offset 800) main_length), 37081#(<= (+ main_offset 796) main_length), 37082#(<= (+ main_offset 792) main_length), 37083#(<= (+ main_offset 788) main_length), 37084#(<= (+ main_offset 784) main_length), 37085#(<= (+ main_offset 780) main_length), 37086#(<= (+ main_offset 776) main_length), 37087#(<= (+ main_offset 772) main_length), 37088#(<= (+ main_offset 768) main_length), 37089#(<= (+ main_offset 764) main_length), 37090#(<= (+ main_offset 760) main_length), 37091#(<= (+ main_offset 756) main_length), 37092#(<= (+ main_offset 752) main_length), 37093#(<= (+ main_offset 748) main_length), 37094#(<= (+ main_offset 744) main_length), 37095#(<= (+ main_offset 740) main_length), 37096#(<= (+ main_offset 736) main_length), 37097#(<= (+ main_offset 732) main_length), 37098#(<= (+ main_offset 728) main_length), 37099#(<= (+ main_offset 724) main_length), 37100#(<= (+ main_offset 720) main_length), 37101#(<= (+ main_offset 716) main_length), 37102#(<= (+ main_offset 712) main_length), 37103#(<= (+ main_offset 708) main_length), 37104#(<= (+ main_offset 704) main_length), 37105#(<= (+ main_offset 700) main_length), 37106#(<= (+ main_offset 696) main_length)] [2018-07-23 13:52:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7832 backedges. 0 proven. 7832 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:04,585 INFO L450 AbstractCegarLoop]: Interpolant automaton has 91 states [2018-07-23 13:52:04,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2018-07-23 13:52:04,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2018-07-23 13:52:04,587 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand 91 states. [2018-07-23 13:52:04,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:04,700 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2018-07-23 13:52:04,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-07-23 13:52:04,700 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 179 [2018-07-23 13:52:04,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:04,701 INFO L225 Difference]: With dead ends: 183 [2018-07-23 13:52:04,701 INFO L226 Difference]: Without dead ends: 182 [2018-07-23 13:52:04,702 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 13:52:04,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-07-23 13:52:04,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2018-07-23 13:52:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-07-23 13:52:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2018-07-23 13:52:04,707 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 179 [2018-07-23 13:52:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:04,708 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2018-07-23 13:52:04,708 INFO L472 AbstractCegarLoop]: Interpolant automaton has 91 states. [2018-07-23 13:52:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2018-07-23 13:52:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-07-23 13:52:04,709 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:04,709 INFO L357 BasicCegarLoop]: trace histogram [90, 89, 1, 1] [2018-07-23 13:52:04,709 INFO L414 AbstractCegarLoop]: === Iteration 90 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1659531730, now seen corresponding path program 89 times [2018-07-23 13:52:04,709 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 8010 backedges. 0 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,062 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:05,062 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2018-07-23 13:52:05,062 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,063 INFO L185 omatonBuilderFactory]: Interpolants [37888#(<= (+ main_offset 852) main_length), 37889#(<= (+ main_offset 848) main_length), 37890#(<= (+ main_offset 844) main_length), 37891#(<= (+ main_offset 840) main_length), 37892#(<= (+ main_offset 836) main_length), 37893#(<= (+ main_offset 832) main_length), 37894#(<= (+ main_offset 828) main_length), 37895#(<= (+ main_offset 824) main_length), 37896#(<= (+ main_offset 820) main_length), 37897#(<= (+ main_offset 816) main_length), 37898#(<= (+ main_offset 812) main_length), 37899#(<= (+ main_offset 808) main_length), 37900#(<= (+ main_offset 804) main_length), 37901#(<= (+ main_offset 800) main_length), 37902#(<= (+ main_offset 796) main_length), 37903#(<= (+ main_offset 792) main_length), 37904#(<= (+ main_offset 788) main_length), 37905#(<= (+ main_offset 784) main_length), 37906#(<= (+ main_offset 780) main_length), 37907#(<= (+ main_offset 776) main_length), 37908#(<= (+ main_offset 772) main_length), 37909#(<= (+ main_offset 768) main_length), 37910#(<= (+ main_offset 764) main_length), 37911#(<= (+ main_offset 760) main_length), 37912#(<= (+ main_offset 756) main_length), 37913#(<= (+ main_offset 752) main_length), 37914#(<= (+ main_offset 748) main_length), 37915#(<= (+ main_offset 744) main_length), 37916#(<= (+ main_offset 740) main_length), 37917#(<= (+ main_offset 736) main_length), 37918#(<= (+ main_offset 732) main_length), 37919#(<= (+ main_offset 728) main_length), 37920#(<= (+ main_offset 724) main_length), 37921#(<= (+ main_offset 720) main_length), 37922#(<= (+ main_offset 716) main_length), 37923#(<= (+ main_offset 712) main_length), 37924#(<= (+ main_offset 708) main_length), 37925#(<= (+ main_offset 704) main_length), 37926#(<= (+ main_offset 700) main_length), 37927#(<= (+ main_offset 696) main_length), 37928#(<= (+ main_offset 692) main_length), 37837#true, 37838#false, 37839#(<= (+ main_offset 1048) main_length), 37840#(<= (+ main_offset 1044) main_length), 37841#(<= (+ main_offset 1040) main_length), 37842#(<= (+ main_offset 1036) main_length), 37843#(<= (+ main_offset 1032) main_length), 37844#(<= (+ main_offset 1028) main_length), 37845#(<= (+ main_offset 1024) main_length), 37846#(<= (+ main_offset 1020) main_length), 37847#(<= (+ main_offset 1016) main_length), 37848#(<= (+ main_offset 1012) main_length), 37849#(<= (+ main_offset 1008) main_length), 37850#(<= (+ main_offset 1004) main_length), 37851#(<= (+ main_offset 1000) main_length), 37852#(<= (+ main_offset 996) main_length), 37853#(<= (+ main_offset 992) main_length), 37854#(<= (+ main_offset 988) main_length), 37855#(<= (+ main_offset 984) main_length), 37856#(<= (+ main_offset 980) main_length), 37857#(<= (+ main_offset 976) main_length), 37858#(<= (+ main_offset 972) main_length), 37859#(<= (+ main_offset 968) main_length), 37860#(<= (+ main_offset 964) main_length), 37861#(<= (+ main_offset 960) main_length), 37862#(<= (+ main_offset 956) main_length), 37863#(<= (+ main_offset 952) main_length), 37864#(<= (+ main_offset 948) main_length), 37865#(<= (+ main_offset 944) main_length), 37866#(<= (+ main_offset 940) main_length), 37867#(<= (+ main_offset 936) main_length), 37868#(<= (+ main_offset 932) main_length), 37869#(<= (+ main_offset 928) main_length), 37870#(<= (+ main_offset 924) main_length), 37871#(<= (+ main_offset 920) main_length), 37872#(<= (+ main_offset 916) main_length), 37873#(<= (+ main_offset 912) main_length), 37874#(<= (+ main_offset 908) main_length), 37875#(<= (+ main_offset 904) main_length), 37876#(<= (+ main_offset 900) main_length), 37877#(<= (+ main_offset 896) main_length), 37878#(<= (+ main_offset 892) main_length), 37879#(<= (+ main_offset 888) main_length), 37880#(<= (+ main_offset 884) main_length), 37881#(<= (+ main_offset 880) main_length), 37882#(<= (+ main_offset 876) main_length), 37883#(<= (+ main_offset 872) main_length), 37884#(<= (+ main_offset 868) main_length), 37885#(<= (+ main_offset 864) main_length), 37886#(<= (+ main_offset 860) main_length), 37887#(<= (+ main_offset 856) main_length)] [2018-07-23 13:52:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 8010 backedges. 0 proven. 8010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,064 INFO L450 AbstractCegarLoop]: Interpolant automaton has 92 states [2018-07-23 13:52:05,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2018-07-23 13:52:05,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:52:05,065 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand 92 states. [2018-07-23 13:52:05,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:05,134 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2018-07-23 13:52:05,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-07-23 13:52:05,135 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 181 [2018-07-23 13:52:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:05,136 INFO L225 Difference]: With dead ends: 185 [2018-07-23 13:52:05,136 INFO L226 Difference]: Without dead ends: 184 [2018-07-23 13:52:05,137 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2018-07-23 13:52:05,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-07-23 13:52:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2018-07-23 13:52:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2018-07-23 13:52:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2018-07-23 13:52:05,142 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 181 [2018-07-23 13:52:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:05,143 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2018-07-23 13:52:05,143 INFO L472 AbstractCegarLoop]: Interpolant automaton has 92 states. [2018-07-23 13:52:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2018-07-23 13:52:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-23 13:52:05,144 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:05,144 INFO L357 BasicCegarLoop]: trace histogram [91, 90, 1, 1] [2018-07-23 13:52:05,145 INFO L414 AbstractCegarLoop]: === Iteration 91 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:05,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1377126804, now seen corresponding path program 90 times [2018-07-23 13:52:05,145 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 0 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,589 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:05,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2018-07-23 13:52:05,589 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,590 INFO L185 omatonBuilderFactory]: Interpolants [38667#true, 38668#false, 38669#(<= (+ main_offset 1048) main_length), 38670#(<= (+ main_offset 1044) main_length), 38671#(<= (+ main_offset 1040) main_length), 38672#(<= (+ main_offset 1036) main_length), 38673#(<= (+ main_offset 1032) main_length), 38674#(<= (+ main_offset 1028) main_length), 38675#(<= (+ main_offset 1024) main_length), 38676#(<= (+ main_offset 1020) main_length), 38677#(<= (+ main_offset 1016) main_length), 38678#(<= (+ main_offset 1012) main_length), 38679#(<= (+ main_offset 1008) main_length), 38680#(<= (+ main_offset 1004) main_length), 38681#(<= (+ main_offset 1000) main_length), 38682#(<= (+ main_offset 996) main_length), 38683#(<= (+ main_offset 992) main_length), 38684#(<= (+ main_offset 988) main_length), 38685#(<= (+ main_offset 984) main_length), 38686#(<= (+ main_offset 980) main_length), 38687#(<= (+ main_offset 976) main_length), 38688#(<= (+ main_offset 972) main_length), 38689#(<= (+ main_offset 968) main_length), 38690#(<= (+ main_offset 964) main_length), 38691#(<= (+ main_offset 960) main_length), 38692#(<= (+ main_offset 956) main_length), 38693#(<= (+ main_offset 952) main_length), 38694#(<= (+ main_offset 948) main_length), 38695#(<= (+ main_offset 944) main_length), 38696#(<= (+ main_offset 940) main_length), 38697#(<= (+ main_offset 936) main_length), 38698#(<= (+ main_offset 932) main_length), 38699#(<= (+ main_offset 928) main_length), 38700#(<= (+ main_offset 924) main_length), 38701#(<= (+ main_offset 920) main_length), 38702#(<= (+ main_offset 916) main_length), 38703#(<= (+ main_offset 912) main_length), 38704#(<= (+ main_offset 908) main_length), 38705#(<= (+ main_offset 904) main_length), 38706#(<= (+ main_offset 900) main_length), 38707#(<= (+ main_offset 896) main_length), 38708#(<= (+ main_offset 892) main_length), 38709#(<= (+ main_offset 888) main_length), 38710#(<= (+ main_offset 884) main_length), 38711#(<= (+ main_offset 880) main_length), 38712#(<= (+ main_offset 876) main_length), 38713#(<= (+ main_offset 872) main_length), 38714#(<= (+ main_offset 868) main_length), 38715#(<= (+ main_offset 864) main_length), 38716#(<= (+ main_offset 860) main_length), 38717#(<= (+ main_offset 856) main_length), 38718#(<= (+ main_offset 852) main_length), 38719#(<= (+ main_offset 848) main_length), 38720#(<= (+ main_offset 844) main_length), 38721#(<= (+ main_offset 840) main_length), 38722#(<= (+ main_offset 836) main_length), 38723#(<= (+ main_offset 832) main_length), 38724#(<= (+ main_offset 828) main_length), 38725#(<= (+ main_offset 824) main_length), 38726#(<= (+ main_offset 820) main_length), 38727#(<= (+ main_offset 816) main_length), 38728#(<= (+ main_offset 812) main_length), 38729#(<= (+ main_offset 808) main_length), 38730#(<= (+ main_offset 804) main_length), 38731#(<= (+ main_offset 800) main_length), 38732#(<= (+ main_offset 796) main_length), 38733#(<= (+ main_offset 792) main_length), 38734#(<= (+ main_offset 788) main_length), 38735#(<= (+ main_offset 784) main_length), 38736#(<= (+ main_offset 780) main_length), 38737#(<= (+ main_offset 776) main_length), 38738#(<= (+ main_offset 772) main_length), 38739#(<= (+ main_offset 768) main_length), 38740#(<= (+ main_offset 764) main_length), 38741#(<= (+ main_offset 760) main_length), 38742#(<= (+ main_offset 756) main_length), 38743#(<= (+ main_offset 752) main_length), 38744#(<= (+ main_offset 748) main_length), 38745#(<= (+ main_offset 744) main_length), 38746#(<= (+ main_offset 740) main_length), 38747#(<= (+ main_offset 736) main_length), 38748#(<= (+ main_offset 732) main_length), 38749#(<= (+ main_offset 728) main_length), 38750#(<= (+ main_offset 724) main_length), 38751#(<= (+ main_offset 720) main_length), 38752#(<= (+ main_offset 716) main_length), 38753#(<= (+ main_offset 712) main_length), 38754#(<= (+ main_offset 708) main_length), 38755#(<= (+ main_offset 704) main_length), 38756#(<= (+ main_offset 700) main_length), 38757#(<= (+ main_offset 696) main_length), 38758#(<= (+ main_offset 692) main_length), 38759#(<= (+ main_offset 688) main_length)] [2018-07-23 13:52:05,591 INFO L134 CoverageAnalysis]: Checked inductivity of 8190 backedges. 0 proven. 8190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:05,591 INFO L450 AbstractCegarLoop]: Interpolant automaton has 93 states [2018-07-23 13:52:05,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2018-07-23 13:52:05,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:52:05,592 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand 93 states. [2018-07-23 13:52:05,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:05,717 INFO L93 Difference]: Finished difference Result 187 states and 187 transitions. [2018-07-23 13:52:05,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2018-07-23 13:52:05,717 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 183 [2018-07-23 13:52:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:05,718 INFO L225 Difference]: With dead ends: 187 [2018-07-23 13:52:05,718 INFO L226 Difference]: Without dead ends: 186 [2018-07-23 13:52:05,719 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2018-07-23 13:52:05,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-07-23 13:52:05,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2018-07-23 13:52:05,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-07-23 13:52:05,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2018-07-23 13:52:05,724 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 183 [2018-07-23 13:52:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:05,724 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2018-07-23 13:52:05,724 INFO L472 AbstractCegarLoop]: Interpolant automaton has 93 states. [2018-07-23 13:52:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2018-07-23 13:52:05,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-07-23 13:52:05,725 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:05,725 INFO L357 BasicCegarLoop]: trace histogram [92, 91, 1, 1] [2018-07-23 13:52:05,726 INFO L414 AbstractCegarLoop]: === Iteration 92 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:05,726 INFO L82 PathProgramCache]: Analyzing trace with hash 568932566, now seen corresponding path program 91 times [2018-07-23 13:52:05,726 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,031 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,032 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2018-07-23 13:52:06,032 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,032 INFO L185 omatonBuilderFactory]: Interpolants [39552#(<= (+ main_offset 872) main_length), 39553#(<= (+ main_offset 868) main_length), 39554#(<= (+ main_offset 864) main_length), 39555#(<= (+ main_offset 860) main_length), 39556#(<= (+ main_offset 856) main_length), 39557#(<= (+ main_offset 852) main_length), 39558#(<= (+ main_offset 848) main_length), 39559#(<= (+ main_offset 844) main_length), 39560#(<= (+ main_offset 840) main_length), 39561#(<= (+ main_offset 836) main_length), 39562#(<= (+ main_offset 832) main_length), 39563#(<= (+ main_offset 828) main_length), 39564#(<= (+ main_offset 824) main_length), 39565#(<= (+ main_offset 820) main_length), 39566#(<= (+ main_offset 816) main_length), 39567#(<= (+ main_offset 812) main_length), 39568#(<= (+ main_offset 808) main_length), 39569#(<= (+ main_offset 804) main_length), 39570#(<= (+ main_offset 800) main_length), 39571#(<= (+ main_offset 796) main_length), 39572#(<= (+ main_offset 792) main_length), 39573#(<= (+ main_offset 788) main_length), 39574#(<= (+ main_offset 784) main_length), 39575#(<= (+ main_offset 780) main_length), 39576#(<= (+ main_offset 776) main_length), 39577#(<= (+ main_offset 772) main_length), 39578#(<= (+ main_offset 768) main_length), 39579#(<= (+ main_offset 764) main_length), 39580#(<= (+ main_offset 760) main_length), 39581#(<= (+ main_offset 756) main_length), 39582#(<= (+ main_offset 752) main_length), 39583#(<= (+ main_offset 748) main_length), 39584#(<= (+ main_offset 744) main_length), 39585#(<= (+ main_offset 740) main_length), 39586#(<= (+ main_offset 736) main_length), 39587#(<= (+ main_offset 732) main_length), 39588#(<= (+ main_offset 728) main_length), 39589#(<= (+ main_offset 724) main_length), 39590#(<= (+ main_offset 720) main_length), 39591#(<= (+ main_offset 716) main_length), 39592#(<= (+ main_offset 712) main_length), 39593#(<= (+ main_offset 708) main_length), 39594#(<= (+ main_offset 704) main_length), 39595#(<= (+ main_offset 700) main_length), 39596#(<= (+ main_offset 696) main_length), 39597#(<= (+ main_offset 692) main_length), 39598#(<= (+ main_offset 688) main_length), 39599#(<= (+ main_offset 684) main_length), 39506#true, 39507#false, 39508#(<= (+ main_offset 1048) main_length), 39509#(<= (+ main_offset 1044) main_length), 39510#(<= (+ main_offset 1040) main_length), 39511#(<= (+ main_offset 1036) main_length), 39512#(<= (+ main_offset 1032) main_length), 39513#(<= (+ main_offset 1028) main_length), 39514#(<= (+ main_offset 1024) main_length), 39515#(<= (+ main_offset 1020) main_length), 39516#(<= (+ main_offset 1016) main_length), 39517#(<= (+ main_offset 1012) main_length), 39518#(<= (+ main_offset 1008) main_length), 39519#(<= (+ main_offset 1004) main_length), 39520#(<= (+ main_offset 1000) main_length), 39521#(<= (+ main_offset 996) main_length), 39522#(<= (+ main_offset 992) main_length), 39523#(<= (+ main_offset 988) main_length), 39524#(<= (+ main_offset 984) main_length), 39525#(<= (+ main_offset 980) main_length), 39526#(<= (+ main_offset 976) main_length), 39527#(<= (+ main_offset 972) main_length), 39528#(<= (+ main_offset 968) main_length), 39529#(<= (+ main_offset 964) main_length), 39530#(<= (+ main_offset 960) main_length), 39531#(<= (+ main_offset 956) main_length), 39532#(<= (+ main_offset 952) main_length), 39533#(<= (+ main_offset 948) main_length), 39534#(<= (+ main_offset 944) main_length), 39535#(<= (+ main_offset 940) main_length), 39536#(<= (+ main_offset 936) main_length), 39537#(<= (+ main_offset 932) main_length), 39538#(<= (+ main_offset 928) main_length), 39539#(<= (+ main_offset 924) main_length), 39540#(<= (+ main_offset 920) main_length), 39541#(<= (+ main_offset 916) main_length), 39542#(<= (+ main_offset 912) main_length), 39543#(<= (+ main_offset 908) main_length), 39544#(<= (+ main_offset 904) main_length), 39545#(<= (+ main_offset 900) main_length), 39546#(<= (+ main_offset 896) main_length), 39547#(<= (+ main_offset 892) main_length), 39548#(<= (+ main_offset 888) main_length), 39549#(<= (+ main_offset 884) main_length), 39550#(<= (+ main_offset 880) main_length), 39551#(<= (+ main_offset 876) main_length)] [2018-07-23 13:52:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 8372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,033 INFO L450 AbstractCegarLoop]: Interpolant automaton has 94 states [2018-07-23 13:52:06,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2018-07-23 13:52:06,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:52:06,034 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand 94 states. [2018-07-23 13:52:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:06,101 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-07-23 13:52:06,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-07-23 13:52:06,101 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 185 [2018-07-23 13:52:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:06,102 INFO L225 Difference]: With dead ends: 189 [2018-07-23 13:52:06,102 INFO L226 Difference]: Without dead ends: 188 [2018-07-23 13:52:06,103 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2018-07-23 13:52:06,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2018-07-23 13:52:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2018-07-23 13:52:06,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-07-23 13:52:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2018-07-23 13:52:06,108 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 185 [2018-07-23 13:52:06,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:06,109 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2018-07-23 13:52:06,109 INFO L472 AbstractCegarLoop]: Interpolant automaton has 94 states. [2018-07-23 13:52:06,109 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2018-07-23 13:52:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-23 13:52:06,110 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:06,110 INFO L357 BasicCegarLoop]: trace histogram [93, 92, 1, 1] [2018-07-23 13:52:06,110 INFO L414 AbstractCegarLoop]: === Iteration 93 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:06,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1283350424, now seen corresponding path program 92 times [2018-07-23 13:52:06,110 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8556 backedges. 0 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,447 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,448 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2018-07-23 13:52:06,448 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,448 INFO L185 omatonBuilderFactory]: Interpolants [40448#(<= (+ main_offset 680) main_length), 40354#true, 40355#false, 40356#(<= (+ main_offset 1048) main_length), 40357#(<= (+ main_offset 1044) main_length), 40358#(<= (+ main_offset 1040) main_length), 40359#(<= (+ main_offset 1036) main_length), 40360#(<= (+ main_offset 1032) main_length), 40361#(<= (+ main_offset 1028) main_length), 40362#(<= (+ main_offset 1024) main_length), 40363#(<= (+ main_offset 1020) main_length), 40364#(<= (+ main_offset 1016) main_length), 40365#(<= (+ main_offset 1012) main_length), 40366#(<= (+ main_offset 1008) main_length), 40367#(<= (+ main_offset 1004) main_length), 40368#(<= (+ main_offset 1000) main_length), 40369#(<= (+ main_offset 996) main_length), 40370#(<= (+ main_offset 992) main_length), 40371#(<= (+ main_offset 988) main_length), 40372#(<= (+ main_offset 984) main_length), 40373#(<= (+ main_offset 980) main_length), 40374#(<= (+ main_offset 976) main_length), 40375#(<= (+ main_offset 972) main_length), 40376#(<= (+ main_offset 968) main_length), 40377#(<= (+ main_offset 964) main_length), 40378#(<= (+ main_offset 960) main_length), 40379#(<= (+ main_offset 956) main_length), 40380#(<= (+ main_offset 952) main_length), 40381#(<= (+ main_offset 948) main_length), 40382#(<= (+ main_offset 944) main_length), 40383#(<= (+ main_offset 940) main_length), 40384#(<= (+ main_offset 936) main_length), 40385#(<= (+ main_offset 932) main_length), 40386#(<= (+ main_offset 928) main_length), 40387#(<= (+ main_offset 924) main_length), 40388#(<= (+ main_offset 920) main_length), 40389#(<= (+ main_offset 916) main_length), 40390#(<= (+ main_offset 912) main_length), 40391#(<= (+ main_offset 908) main_length), 40392#(<= (+ main_offset 904) main_length), 40393#(<= (+ main_offset 900) main_length), 40394#(<= (+ main_offset 896) main_length), 40395#(<= (+ main_offset 892) main_length), 40396#(<= (+ main_offset 888) main_length), 40397#(<= (+ main_offset 884) main_length), 40398#(<= (+ main_offset 880) main_length), 40399#(<= (+ main_offset 876) main_length), 40400#(<= (+ main_offset 872) main_length), 40401#(<= (+ main_offset 868) main_length), 40402#(<= (+ main_offset 864) main_length), 40403#(<= (+ main_offset 860) main_length), 40404#(<= (+ main_offset 856) main_length), 40405#(<= (+ main_offset 852) main_length), 40406#(<= (+ main_offset 848) main_length), 40407#(<= (+ main_offset 844) main_length), 40408#(<= (+ main_offset 840) main_length), 40409#(<= (+ main_offset 836) main_length), 40410#(<= (+ main_offset 832) main_length), 40411#(<= (+ main_offset 828) main_length), 40412#(<= (+ main_offset 824) main_length), 40413#(<= (+ main_offset 820) main_length), 40414#(<= (+ main_offset 816) main_length), 40415#(<= (+ main_offset 812) main_length), 40416#(<= (+ main_offset 808) main_length), 40417#(<= (+ main_offset 804) main_length), 40418#(<= (+ main_offset 800) main_length), 40419#(<= (+ main_offset 796) main_length), 40420#(<= (+ main_offset 792) main_length), 40421#(<= (+ main_offset 788) main_length), 40422#(<= (+ main_offset 784) main_length), 40423#(<= (+ main_offset 780) main_length), 40424#(<= (+ main_offset 776) main_length), 40425#(<= (+ main_offset 772) main_length), 40426#(<= (+ main_offset 768) main_length), 40427#(<= (+ main_offset 764) main_length), 40428#(<= (+ main_offset 760) main_length), 40429#(<= (+ main_offset 756) main_length), 40430#(<= (+ main_offset 752) main_length), 40431#(<= (+ main_offset 748) main_length), 40432#(<= (+ main_offset 744) main_length), 40433#(<= (+ main_offset 740) main_length), 40434#(<= (+ main_offset 736) main_length), 40435#(<= (+ main_offset 732) main_length), 40436#(<= (+ main_offset 728) main_length), 40437#(<= (+ main_offset 724) main_length), 40438#(<= (+ main_offset 720) main_length), 40439#(<= (+ main_offset 716) main_length), 40440#(<= (+ main_offset 712) main_length), 40441#(<= (+ main_offset 708) main_length), 40442#(<= (+ main_offset 704) main_length), 40443#(<= (+ main_offset 700) main_length), 40444#(<= (+ main_offset 696) main_length), 40445#(<= (+ main_offset 692) main_length), 40446#(<= (+ main_offset 688) main_length), 40447#(<= (+ main_offset 684) main_length)] [2018-07-23 13:52:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 8556 backedges. 0 proven. 8556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,449 INFO L450 AbstractCegarLoop]: Interpolant automaton has 95 states [2018-07-23 13:52:06,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2018-07-23 13:52:06,450 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:52:06,450 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 95 states. [2018-07-23 13:52:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:06,579 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2018-07-23 13:52:06,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2018-07-23 13:52:06,579 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 187 [2018-07-23 13:52:06,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:06,580 INFO L225 Difference]: With dead ends: 191 [2018-07-23 13:52:06,580 INFO L226 Difference]: Without dead ends: 190 [2018-07-23 13:52:06,580 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2018-07-23 13:52:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2018-07-23 13:52:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2018-07-23 13:52:06,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-07-23 13:52:06,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2018-07-23 13:52:06,584 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 187 [2018-07-23 13:52:06,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:06,584 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2018-07-23 13:52:06,584 INFO L472 AbstractCegarLoop]: Interpolant automaton has 95 states. [2018-07-23 13:52:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2018-07-23 13:52:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-23 13:52:06,585 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:06,585 INFO L357 BasicCegarLoop]: trace histogram [94, 93, 1, 1] [2018-07-23 13:52:06,586 INFO L414 AbstractCegarLoop]: === Iteration 94 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:06,586 INFO L82 PathProgramCache]: Analyzing trace with hash 644144602, now seen corresponding path program 93 times [2018-07-23 13:52:06,586 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8742 backedges. 0 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,911 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:06,911 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2018-07-23 13:52:06,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,912 INFO L185 omatonBuilderFactory]: Interpolants [41216#(<= (+ main_offset 1036) main_length), 41217#(<= (+ main_offset 1032) main_length), 41218#(<= (+ main_offset 1028) main_length), 41219#(<= (+ main_offset 1024) main_length), 41220#(<= (+ main_offset 1020) main_length), 41221#(<= (+ main_offset 1016) main_length), 41222#(<= (+ main_offset 1012) main_length), 41223#(<= (+ main_offset 1008) main_length), 41224#(<= (+ main_offset 1004) main_length), 41225#(<= (+ main_offset 1000) main_length), 41226#(<= (+ main_offset 996) main_length), 41227#(<= (+ main_offset 992) main_length), 41228#(<= (+ main_offset 988) main_length), 41229#(<= (+ main_offset 984) main_length), 41230#(<= (+ main_offset 980) main_length), 41231#(<= (+ main_offset 976) main_length), 41232#(<= (+ main_offset 972) main_length), 41233#(<= (+ main_offset 968) main_length), 41234#(<= (+ main_offset 964) main_length), 41235#(<= (+ main_offset 960) main_length), 41236#(<= (+ main_offset 956) main_length), 41237#(<= (+ main_offset 952) main_length), 41238#(<= (+ main_offset 948) main_length), 41239#(<= (+ main_offset 944) main_length), 41240#(<= (+ main_offset 940) main_length), 41241#(<= (+ main_offset 936) main_length), 41242#(<= (+ main_offset 932) main_length), 41243#(<= (+ main_offset 928) main_length), 41244#(<= (+ main_offset 924) main_length), 41245#(<= (+ main_offset 920) main_length), 41246#(<= (+ main_offset 916) main_length), 41247#(<= (+ main_offset 912) main_length), 41248#(<= (+ main_offset 908) main_length), 41249#(<= (+ main_offset 904) main_length), 41250#(<= (+ main_offset 900) main_length), 41251#(<= (+ main_offset 896) main_length), 41252#(<= (+ main_offset 892) main_length), 41253#(<= (+ main_offset 888) main_length), 41254#(<= (+ main_offset 884) main_length), 41255#(<= (+ main_offset 880) main_length), 41256#(<= (+ main_offset 876) main_length), 41257#(<= (+ main_offset 872) main_length), 41258#(<= (+ main_offset 868) main_length), 41259#(<= (+ main_offset 864) main_length), 41260#(<= (+ main_offset 860) main_length), 41261#(<= (+ main_offset 856) main_length), 41262#(<= (+ main_offset 852) main_length), 41263#(<= (+ main_offset 848) main_length), 41264#(<= (+ main_offset 844) main_length), 41265#(<= (+ main_offset 840) main_length), 41266#(<= (+ main_offset 836) main_length), 41267#(<= (+ main_offset 832) main_length), 41268#(<= (+ main_offset 828) main_length), 41269#(<= (+ main_offset 824) main_length), 41270#(<= (+ main_offset 820) main_length), 41271#(<= (+ main_offset 816) main_length), 41272#(<= (+ main_offset 812) main_length), 41273#(<= (+ main_offset 808) main_length), 41274#(<= (+ main_offset 804) main_length), 41275#(<= (+ main_offset 800) main_length), 41276#(<= (+ main_offset 796) main_length), 41277#(<= (+ main_offset 792) main_length), 41278#(<= (+ main_offset 788) main_length), 41279#(<= (+ main_offset 784) main_length), 41280#(<= (+ main_offset 780) main_length), 41281#(<= (+ main_offset 776) main_length), 41282#(<= (+ main_offset 772) main_length), 41283#(<= (+ main_offset 768) main_length), 41284#(<= (+ main_offset 764) main_length), 41285#(<= (+ main_offset 760) main_length), 41286#(<= (+ main_offset 756) main_length), 41287#(<= (+ main_offset 752) main_length), 41288#(<= (+ main_offset 748) main_length), 41289#(<= (+ main_offset 744) main_length), 41290#(<= (+ main_offset 740) main_length), 41291#(<= (+ main_offset 736) main_length), 41292#(<= (+ main_offset 732) main_length), 41293#(<= (+ main_offset 728) main_length), 41294#(<= (+ main_offset 724) main_length), 41295#(<= (+ main_offset 720) main_length), 41296#(<= (+ main_offset 716) main_length), 41297#(<= (+ main_offset 712) main_length), 41298#(<= (+ main_offset 708) main_length), 41299#(<= (+ main_offset 704) main_length), 41300#(<= (+ main_offset 700) main_length), 41301#(<= (+ main_offset 696) main_length), 41302#(<= (+ main_offset 692) main_length), 41303#(<= (+ main_offset 688) main_length), 41304#(<= (+ main_offset 684) main_length), 41305#(<= (+ main_offset 680) main_length), 41306#(<= (+ main_offset 676) main_length), 41211#true, 41212#false, 41213#(<= (+ main_offset 1048) main_length), 41214#(<= (+ main_offset 1044) main_length), 41215#(<= (+ main_offset 1040) main_length)] [2018-07-23 13:52:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 8742 backedges. 0 proven. 8742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:06,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-07-23 13:52:06,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-07-23 13:52:06,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2018-07-23 13:52:06,913 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand 96 states. [2018-07-23 13:52:07,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,135 INFO L93 Difference]: Finished difference Result 193 states and 193 transitions. [2018-07-23 13:52:07,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2018-07-23 13:52:07,135 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 189 [2018-07-23 13:52:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,136 INFO L225 Difference]: With dead ends: 193 [2018-07-23 13:52:07,136 INFO L226 Difference]: Without dead ends: 192 [2018-07-23 13:52:07,136 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 13:52:07,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-07-23 13:52:07,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2018-07-23 13:52:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-07-23 13:52:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 192 transitions. [2018-07-23 13:52:07,142 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 192 transitions. Word has length 189 [2018-07-23 13:52:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,142 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 192 transitions. [2018-07-23 13:52:07,142 INFO L472 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-07-23 13:52:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 192 transitions. [2018-07-23 13:52:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-07-23 13:52:07,143 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,143 INFO L357 BasicCegarLoop]: trace histogram [95, 94, 1, 1] [2018-07-23 13:52:07,144 INFO L414 AbstractCegarLoop]: === Iteration 95 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,144 INFO L82 PathProgramCache]: Analyzing trace with hash 547672988, now seen corresponding path program 94 times [2018-07-23 13:52:07,144 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:07,736 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:07,736 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2018-07-23 13:52:07,736 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:07,737 INFO L185 omatonBuilderFactory]: Interpolants [42077#true, 42078#false, 42079#(<= (+ main_offset 1048) main_length), 42080#(<= (+ main_offset 1044) main_length), 42081#(<= (+ main_offset 1040) main_length), 42082#(<= (+ main_offset 1036) main_length), 42083#(<= (+ main_offset 1032) main_length), 42084#(<= (+ main_offset 1028) main_length), 42085#(<= (+ main_offset 1024) main_length), 42086#(<= (+ main_offset 1020) main_length), 42087#(<= (+ main_offset 1016) main_length), 42088#(<= (+ main_offset 1012) main_length), 42089#(<= (+ main_offset 1008) main_length), 42090#(<= (+ main_offset 1004) main_length), 42091#(<= (+ main_offset 1000) main_length), 42092#(<= (+ main_offset 996) main_length), 42093#(<= (+ main_offset 992) main_length), 42094#(<= (+ main_offset 988) main_length), 42095#(<= (+ main_offset 984) main_length), 42096#(<= (+ main_offset 980) main_length), 42097#(<= (+ main_offset 976) main_length), 42098#(<= (+ main_offset 972) main_length), 42099#(<= (+ main_offset 968) main_length), 42100#(<= (+ main_offset 964) main_length), 42101#(<= (+ main_offset 960) main_length), 42102#(<= (+ main_offset 956) main_length), 42103#(<= (+ main_offset 952) main_length), 42104#(<= (+ main_offset 948) main_length), 42105#(<= (+ main_offset 944) main_length), 42106#(<= (+ main_offset 940) main_length), 42107#(<= (+ main_offset 936) main_length), 42108#(<= (+ main_offset 932) main_length), 42109#(<= (+ main_offset 928) main_length), 42110#(<= (+ main_offset 924) main_length), 42111#(<= (+ main_offset 920) main_length), 42112#(<= (+ main_offset 916) main_length), 42113#(<= (+ main_offset 912) main_length), 42114#(<= (+ main_offset 908) main_length), 42115#(<= (+ main_offset 904) main_length), 42116#(<= (+ main_offset 900) main_length), 42117#(<= (+ main_offset 896) main_length), 42118#(<= (+ main_offset 892) main_length), 42119#(<= (+ main_offset 888) main_length), 42120#(<= (+ main_offset 884) main_length), 42121#(<= (+ main_offset 880) main_length), 42122#(<= (+ main_offset 876) main_length), 42123#(<= (+ main_offset 872) main_length), 42124#(<= (+ main_offset 868) main_length), 42125#(<= (+ main_offset 864) main_length), 42126#(<= (+ main_offset 860) main_length), 42127#(<= (+ main_offset 856) main_length), 42128#(<= (+ main_offset 852) main_length), 42129#(<= (+ main_offset 848) main_length), 42130#(<= (+ main_offset 844) main_length), 42131#(<= (+ main_offset 840) main_length), 42132#(<= (+ main_offset 836) main_length), 42133#(<= (+ main_offset 832) main_length), 42134#(<= (+ main_offset 828) main_length), 42135#(<= (+ main_offset 824) main_length), 42136#(<= (+ main_offset 820) main_length), 42137#(<= (+ main_offset 816) main_length), 42138#(<= (+ main_offset 812) main_length), 42139#(<= (+ main_offset 808) main_length), 42140#(<= (+ main_offset 804) main_length), 42141#(<= (+ main_offset 800) main_length), 42142#(<= (+ main_offset 796) main_length), 42143#(<= (+ main_offset 792) main_length), 42144#(<= (+ main_offset 788) main_length), 42145#(<= (+ main_offset 784) main_length), 42146#(<= (+ main_offset 780) main_length), 42147#(<= (+ main_offset 776) main_length), 42148#(<= (+ main_offset 772) main_length), 42149#(<= (+ main_offset 768) main_length), 42150#(<= (+ main_offset 764) main_length), 42151#(<= (+ main_offset 760) main_length), 42152#(<= (+ main_offset 756) main_length), 42153#(<= (+ main_offset 752) main_length), 42154#(<= (+ main_offset 748) main_length), 42155#(<= (+ main_offset 744) main_length), 42156#(<= (+ main_offset 740) main_length), 42157#(<= (+ main_offset 736) main_length), 42158#(<= (+ main_offset 732) main_length), 42159#(<= (+ main_offset 728) main_length), 42160#(<= (+ main_offset 724) main_length), 42161#(<= (+ main_offset 720) main_length), 42162#(<= (+ main_offset 716) main_length), 42163#(<= (+ main_offset 712) main_length), 42164#(<= (+ main_offset 708) main_length), 42165#(<= (+ main_offset 704) main_length), 42166#(<= (+ main_offset 700) main_length), 42167#(<= (+ main_offset 696) main_length), 42168#(<= (+ main_offset 692) main_length), 42169#(<= (+ main_offset 688) main_length), 42170#(<= (+ main_offset 684) main_length), 42171#(<= (+ main_offset 680) main_length), 42172#(<= (+ main_offset 676) main_length), 42173#(<= (+ main_offset 672) main_length)] [2018-07-23 13:52:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8930 backedges. 0 proven. 8930 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:07,737 INFO L450 AbstractCegarLoop]: Interpolant automaton has 97 states [2018-07-23 13:52:07,738 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2018-07-23 13:52:07,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:07,738 INFO L87 Difference]: Start difference. First operand 192 states and 192 transitions. Second operand 97 states. [2018-07-23 13:52:07,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:07,826 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2018-07-23 13:52:07,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-07-23 13:52:07,826 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 191 [2018-07-23 13:52:07,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:07,827 INFO L225 Difference]: With dead ends: 195 [2018-07-23 13:52:07,827 INFO L226 Difference]: Without dead ends: 194 [2018-07-23 13:52:07,827 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2018-07-23 13:52:07,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-07-23 13:52:07,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2018-07-23 13:52:07,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-07-23 13:52:07,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2018-07-23 13:52:07,831 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 191 [2018-07-23 13:52:07,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:07,831 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2018-07-23 13:52:07,831 INFO L472 AbstractCegarLoop]: Interpolant automaton has 97 states. [2018-07-23 13:52:07,832 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2018-07-23 13:52:07,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-07-23 13:52:07,832 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:07,832 INFO L357 BasicCegarLoop]: trace histogram [96, 95, 1, 1] [2018-07-23 13:52:07,832 INFO L414 AbstractCegarLoop]: === Iteration 96 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1967234850, now seen corresponding path program 95 times [2018-07-23 13:52:07,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9120 backedges. 0 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,163 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,163 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2018-07-23 13:52:08,163 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,163 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 13:52:08,164 INFO L185 omatonBuilderFactory]: Interpolants [43008#(<= (+ main_offset 832) main_length), 43009#(<= (+ main_offset 828) main_length), 43010#(<= (+ main_offset 824) main_length), 43011#(<= (+ main_offset 820) main_length), 43012#(<= (+ main_offset 816) main_length), 43013#(<= (+ main_offset 812) main_length), 43014#(<= (+ main_offset 808) main_length), 43015#(<= (+ main_offset 804) main_length), 43016#(<= (+ main_offset 800) main_length), 43017#(<= (+ main_offset 796) main_length), 43018#(<= (+ main_offset 792) main_length), 43019#(<= (+ main_offset 788) main_length), 43020#(<= (+ main_offset 784) main_length), 43021#(<= (+ main_offset 780) main_length), 43022#(<= (+ main_offset 776) main_length), 43023#(<= (+ main_offset 772) main_length), 43024#(<= (+ main_offset 768) main_length), 43025#(<= (+ main_offset 764) main_length), 43026#(<= (+ main_offset 760) main_length), 43027#(<= (+ main_offset 756) main_length), 43028#(<= (+ main_offset 752) main_length), 43029#(<= (+ main_offset 748) main_length), 43030#(<= (+ main_offset 744) main_length), 43031#(<= (+ main_offset 740) main_length), 43032#(<= (+ main_offset 736) main_length), 43033#(<= (+ main_offset 732) main_length), 43034#(<= (+ main_offset 728) main_length), 43035#(<= (+ main_offset 724) main_length), 43036#(<= (+ main_offset 720) main_length), 43037#(<= (+ main_offset 716) main_length), 43038#(<= (+ main_offset 712) main_length), 43039#(<= (+ main_offset 708) main_length), 43040#(<= (+ main_offset 704) main_length), 43041#(<= (+ main_offset 700) main_length), 43042#(<= (+ main_offset 696) main_length), 43043#(<= (+ main_offset 692) main_length), 43044#(<= (+ main_offset 688) main_length), 43045#(<= (+ main_offset 684) main_length), 43046#(<= (+ main_offset 680) main_length), 43047#(<= (+ main_offset 676) main_length), 43048#(<= (+ main_offset 672) main_length), 43049#(<= (+ main_offset 668) main_length), 42952#true, 42953#false, 42954#(<= (+ main_offset 1048) main_length), 42955#(<= (+ main_offset 1044) main_length), 42956#(<= (+ main_offset 1040) main_length), 42957#(<= (+ main_offset 1036) main_length), 42958#(<= (+ main_offset 1032) main_length), 42959#(<= (+ main_offset 1028) main_length), 42960#(<= (+ main_offset 1024) main_length), 42961#(<= (+ main_offset 1020) main_length), 42962#(<= (+ main_offset 1016) main_length), 42963#(<= (+ main_offset 1012) main_length), 42964#(<= (+ main_offset 1008) main_length), 42965#(<= (+ main_offset 1004) main_length), 42966#(<= (+ main_offset 1000) main_length), 42967#(<= (+ main_offset 996) main_length), 42968#(<= (+ main_offset 992) main_length), 42969#(<= (+ main_offset 988) main_length), 42970#(<= (+ main_offset 984) main_length), 42971#(<= (+ main_offset 980) main_length), 42972#(<= (+ main_offset 976) main_length), 42973#(<= (+ main_offset 972) main_length), 42974#(<= (+ main_offset 968) main_length), 42975#(<= (+ main_offset 964) main_length), 42976#(<= (+ main_offset 960) main_length), 42977#(<= (+ main_offset 956) main_length), 42978#(<= (+ main_offset 952) main_length), 42979#(<= (+ main_offset 948) main_length), 42980#(<= (+ main_offset 944) main_length), 42981#(<= (+ main_offset 940) main_length), 42982#(<= (+ main_offset 936) main_length), 42983#(<= (+ main_offset 932) main_length), 42984#(<= (+ main_offset 928) main_length), 42985#(<= (+ main_offset 924) main_length), 42986#(<= (+ main_offset 920) main_length), 42987#(<= (+ main_offset 916) main_length), 42988#(<= (+ main_offset 912) main_length), 42989#(<= (+ main_offset 908) main_length), 42990#(<= (+ main_offset 904) main_length), 42991#(<= (+ main_offset 900) main_length), 42992#(<= (+ main_offset 896) main_length), 42993#(<= (+ main_offset 892) main_length), 42994#(<= (+ main_offset 888) main_length), 42995#(<= (+ main_offset 884) main_length), 42996#(<= (+ main_offset 880) main_length), 42997#(<= (+ main_offset 876) main_length), 42998#(<= (+ main_offset 872) main_length), 42999#(<= (+ main_offset 868) main_length), 43000#(<= (+ main_offset 864) main_length), 43001#(<= (+ main_offset 860) main_length), 43002#(<= (+ main_offset 856) main_length), 43003#(<= (+ main_offset 852) main_length), 43004#(<= (+ main_offset 848) main_length), 43005#(<= (+ main_offset 844) main_length), 43006#(<= (+ main_offset 840) main_length), 43007#(<= (+ main_offset 836) main_length)] [2018-07-23 13:52:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 9120 backedges. 0 proven. 9120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,165 INFO L450 AbstractCegarLoop]: Interpolant automaton has 98 states [2018-07-23 13:52:08,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2018-07-23 13:52:08,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:08,166 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand 98 states. [2018-07-23 13:52:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,256 INFO L93 Difference]: Finished difference Result 197 states and 197 transitions. [2018-07-23 13:52:08,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2018-07-23 13:52:08,256 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 193 [2018-07-23 13:52:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,257 INFO L225 Difference]: With dead ends: 197 [2018-07-23 13:52:08,257 INFO L226 Difference]: Without dead ends: 196 [2018-07-23 13:52:08,258 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2018-07-23 13:52:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2018-07-23 13:52:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2018-07-23 13:52:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2018-07-23 13:52:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2018-07-23 13:52:08,263 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 193 [2018-07-23 13:52:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,263 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2018-07-23 13:52:08,263 INFO L472 AbstractCegarLoop]: Interpolant automaton has 98 states. [2018-07-23 13:52:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2018-07-23 13:52:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-07-23 13:52:08,264 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,265 INFO L357 BasicCegarLoop]: trace histogram [97, 96, 1, 1] [2018-07-23 13:52:08,265 INFO L414 AbstractCegarLoop]: === Iteration 97 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,265 INFO L82 PathProgramCache]: Analyzing trace with hash -727079520, now seen corresponding path program 96 times [2018-07-23 13:52:08,265 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 9312 backedges. 0 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,645 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:08,645 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2018-07-23 13:52:08,645 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:08,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,646 INFO L185 omatonBuilderFactory]: Interpolants [43836#true, 43837#false, 43838#(<= (+ main_offset 1048) main_length), 43839#(<= (+ main_offset 1044) main_length), 43840#(<= (+ main_offset 1040) main_length), 43841#(<= (+ main_offset 1036) main_length), 43842#(<= (+ main_offset 1032) main_length), 43843#(<= (+ main_offset 1028) main_length), 43844#(<= (+ main_offset 1024) main_length), 43845#(<= (+ main_offset 1020) main_length), 43846#(<= (+ main_offset 1016) main_length), 43847#(<= (+ main_offset 1012) main_length), 43848#(<= (+ main_offset 1008) main_length), 43849#(<= (+ main_offset 1004) main_length), 43850#(<= (+ main_offset 1000) main_length), 43851#(<= (+ main_offset 996) main_length), 43852#(<= (+ main_offset 992) main_length), 43853#(<= (+ main_offset 988) main_length), 43854#(<= (+ main_offset 984) main_length), 43855#(<= (+ main_offset 980) main_length), 43856#(<= (+ main_offset 976) main_length), 43857#(<= (+ main_offset 972) main_length), 43858#(<= (+ main_offset 968) main_length), 43859#(<= (+ main_offset 964) main_length), 43860#(<= (+ main_offset 960) main_length), 43861#(<= (+ main_offset 956) main_length), 43862#(<= (+ main_offset 952) main_length), 43863#(<= (+ main_offset 948) main_length), 43864#(<= (+ main_offset 944) main_length), 43865#(<= (+ main_offset 940) main_length), 43866#(<= (+ main_offset 936) main_length), 43867#(<= (+ main_offset 932) main_length), 43868#(<= (+ main_offset 928) main_length), 43869#(<= (+ main_offset 924) main_length), 43870#(<= (+ main_offset 920) main_length), 43871#(<= (+ main_offset 916) main_length), 43872#(<= (+ main_offset 912) main_length), 43873#(<= (+ main_offset 908) main_length), 43874#(<= (+ main_offset 904) main_length), 43875#(<= (+ main_offset 900) main_length), 43876#(<= (+ main_offset 896) main_length), 43877#(<= (+ main_offset 892) main_length), 43878#(<= (+ main_offset 888) main_length), 43879#(<= (+ main_offset 884) main_length), 43880#(<= (+ main_offset 880) main_length), 43881#(<= (+ main_offset 876) main_length), 43882#(<= (+ main_offset 872) main_length), 43883#(<= (+ main_offset 868) main_length), 43884#(<= (+ main_offset 864) main_length), 43885#(<= (+ main_offset 860) main_length), 43886#(<= (+ main_offset 856) main_length), 43887#(<= (+ main_offset 852) main_length), 43888#(<= (+ main_offset 848) main_length), 43889#(<= (+ main_offset 844) main_length), 43890#(<= (+ main_offset 840) main_length), 43891#(<= (+ main_offset 836) main_length), 43892#(<= (+ main_offset 832) main_length), 43893#(<= (+ main_offset 828) main_length), 43894#(<= (+ main_offset 824) main_length), 43895#(<= (+ main_offset 820) main_length), 43896#(<= (+ main_offset 816) main_length), 43897#(<= (+ main_offset 812) main_length), 43898#(<= (+ main_offset 808) main_length), 43899#(<= (+ main_offset 804) main_length), 43900#(<= (+ main_offset 800) main_length), 43901#(<= (+ main_offset 796) main_length), 43902#(<= (+ main_offset 792) main_length), 43903#(<= (+ main_offset 788) main_length), 43904#(<= (+ main_offset 784) main_length), 43905#(<= (+ main_offset 780) main_length), 43906#(<= (+ main_offset 776) main_length), 43907#(<= (+ main_offset 772) main_length), 43908#(<= (+ main_offset 768) main_length), 43909#(<= (+ main_offset 764) main_length), 43910#(<= (+ main_offset 760) main_length), 43911#(<= (+ main_offset 756) main_length), 43912#(<= (+ main_offset 752) main_length), 43913#(<= (+ main_offset 748) main_length), 43914#(<= (+ main_offset 744) main_length), 43915#(<= (+ main_offset 740) main_length), 43916#(<= (+ main_offset 736) main_length), 43917#(<= (+ main_offset 732) main_length), 43918#(<= (+ main_offset 728) main_length), 43919#(<= (+ main_offset 724) main_length), 43920#(<= (+ main_offset 720) main_length), 43921#(<= (+ main_offset 716) main_length), 43922#(<= (+ main_offset 712) main_length), 43923#(<= (+ main_offset 708) main_length), 43924#(<= (+ main_offset 704) main_length), 43925#(<= (+ main_offset 700) main_length), 43926#(<= (+ main_offset 696) main_length), 43927#(<= (+ main_offset 692) main_length), 43928#(<= (+ main_offset 688) main_length), 43929#(<= (+ main_offset 684) main_length), 43930#(<= (+ main_offset 680) main_length), 43931#(<= (+ main_offset 676) main_length), 43932#(<= (+ main_offset 672) main_length), 43933#(<= (+ main_offset 668) main_length), 43934#(<= (+ main_offset 664) main_length)] [2018-07-23 13:52:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9312 backedges. 0 proven. 9312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:08,646 INFO L450 AbstractCegarLoop]: Interpolant automaton has 99 states [2018-07-23 13:52:08,647 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2018-07-23 13:52:08,648 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:08,648 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand 99 states. [2018-07-23 13:52:08,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:08,733 INFO L93 Difference]: Finished difference Result 199 states and 199 transitions. [2018-07-23 13:52:08,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-07-23 13:52:08,734 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 195 [2018-07-23 13:52:08,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:08,735 INFO L225 Difference]: With dead ends: 199 [2018-07-23 13:52:08,735 INFO L226 Difference]: Without dead ends: 198 [2018-07-23 13:52:08,735 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2018-07-23 13:52:08,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2018-07-23 13:52:08,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2018-07-23 13:52:08,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2018-07-23 13:52:08,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 198 transitions. [2018-07-23 13:52:08,740 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 198 transitions. Word has length 195 [2018-07-23 13:52:08,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:08,741 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 198 transitions. [2018-07-23 13:52:08,741 INFO L472 AbstractCegarLoop]: Interpolant automaton has 99 states. [2018-07-23 13:52:08,741 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 198 transitions. [2018-07-23 13:52:08,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-07-23 13:52:08,742 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:08,742 INFO L357 BasicCegarLoop]: trace histogram [98, 97, 1, 1] [2018-07-23 13:52:08,742 INFO L414 AbstractCegarLoop]: === Iteration 98 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:08,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1356251618, now seen corresponding path program 97 times [2018-07-23 13:52:08,743 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,113 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,113 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2018-07-23 13:52:09,113 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,114 INFO L185 omatonBuilderFactory]: Interpolants [44800#(<= (+ main_offset 772) main_length), 44801#(<= (+ main_offset 768) main_length), 44802#(<= (+ main_offset 764) main_length), 44803#(<= (+ main_offset 760) main_length), 44804#(<= (+ main_offset 756) main_length), 44805#(<= (+ main_offset 752) main_length), 44806#(<= (+ main_offset 748) main_length), 44807#(<= (+ main_offset 744) main_length), 44808#(<= (+ main_offset 740) main_length), 44809#(<= (+ main_offset 736) main_length), 44810#(<= (+ main_offset 732) main_length), 44811#(<= (+ main_offset 728) main_length), 44812#(<= (+ main_offset 724) main_length), 44813#(<= (+ main_offset 720) main_length), 44814#(<= (+ main_offset 716) main_length), 44815#(<= (+ main_offset 712) main_length), 44816#(<= (+ main_offset 708) main_length), 44817#(<= (+ main_offset 704) main_length), 44818#(<= (+ main_offset 700) main_length), 44819#(<= (+ main_offset 696) main_length), 44820#(<= (+ main_offset 692) main_length), 44821#(<= (+ main_offset 688) main_length), 44822#(<= (+ main_offset 684) main_length), 44823#(<= (+ main_offset 680) main_length), 44824#(<= (+ main_offset 676) main_length), 44825#(<= (+ main_offset 672) main_length), 44826#(<= (+ main_offset 668) main_length), 44827#(<= (+ main_offset 664) main_length), 44828#(<= (+ main_offset 660) main_length), 44729#true, 44730#false, 44731#(<= (+ main_offset 1048) main_length), 44732#(<= (+ main_offset 1044) main_length), 44733#(<= (+ main_offset 1040) main_length), 44734#(<= (+ main_offset 1036) main_length), 44735#(<= (+ main_offset 1032) main_length), 44736#(<= (+ main_offset 1028) main_length), 44737#(<= (+ main_offset 1024) main_length), 44738#(<= (+ main_offset 1020) main_length), 44739#(<= (+ main_offset 1016) main_length), 44740#(<= (+ main_offset 1012) main_length), 44741#(<= (+ main_offset 1008) main_length), 44742#(<= (+ main_offset 1004) main_length), 44743#(<= (+ main_offset 1000) main_length), 44744#(<= (+ main_offset 996) main_length), 44745#(<= (+ main_offset 992) main_length), 44746#(<= (+ main_offset 988) main_length), 44747#(<= (+ main_offset 984) main_length), 44748#(<= (+ main_offset 980) main_length), 44749#(<= (+ main_offset 976) main_length), 44750#(<= (+ main_offset 972) main_length), 44751#(<= (+ main_offset 968) main_length), 44752#(<= (+ main_offset 964) main_length), 44753#(<= (+ main_offset 960) main_length), 44754#(<= (+ main_offset 956) main_length), 44755#(<= (+ main_offset 952) main_length), 44756#(<= (+ main_offset 948) main_length), 44757#(<= (+ main_offset 944) main_length), 44758#(<= (+ main_offset 940) main_length), 44759#(<= (+ main_offset 936) main_length), 44760#(<= (+ main_offset 932) main_length), 44761#(<= (+ main_offset 928) main_length), 44762#(<= (+ main_offset 924) main_length), 44763#(<= (+ main_offset 920) main_length), 44764#(<= (+ main_offset 916) main_length), 44765#(<= (+ main_offset 912) main_length), 44766#(<= (+ main_offset 908) main_length), 44767#(<= (+ main_offset 904) main_length), 44768#(<= (+ main_offset 900) main_length), 44769#(<= (+ main_offset 896) main_length), 44770#(<= (+ main_offset 892) main_length), 44771#(<= (+ main_offset 888) main_length), 44772#(<= (+ main_offset 884) main_length), 44773#(<= (+ main_offset 880) main_length), 44774#(<= (+ main_offset 876) main_length), 44775#(<= (+ main_offset 872) main_length), 44776#(<= (+ main_offset 868) main_length), 44777#(<= (+ main_offset 864) main_length), 44778#(<= (+ main_offset 860) main_length), 44779#(<= (+ main_offset 856) main_length), 44780#(<= (+ main_offset 852) main_length), 44781#(<= (+ main_offset 848) main_length), 44782#(<= (+ main_offset 844) main_length), 44783#(<= (+ main_offset 840) main_length), 44784#(<= (+ main_offset 836) main_length), 44785#(<= (+ main_offset 832) main_length), 44786#(<= (+ main_offset 828) main_length), 44787#(<= (+ main_offset 824) main_length), 44788#(<= (+ main_offset 820) main_length), 44789#(<= (+ main_offset 816) main_length), 44790#(<= (+ main_offset 812) main_length), 44791#(<= (+ main_offset 808) main_length), 44792#(<= (+ main_offset 804) main_length), 44793#(<= (+ main_offset 800) main_length), 44794#(<= (+ main_offset 796) main_length), 44795#(<= (+ main_offset 792) main_length), 44796#(<= (+ main_offset 788) main_length), 44797#(<= (+ main_offset 784) main_length), 44798#(<= (+ main_offset 780) main_length), 44799#(<= (+ main_offset 776) main_length)] [2018-07-23 13:52:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 9506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,114 INFO L450 AbstractCegarLoop]: Interpolant automaton has 100 states [2018-07-23 13:52:09,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2018-07-23 13:52:09,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:09,116 INFO L87 Difference]: Start difference. First operand 198 states and 198 transitions. Second operand 100 states. [2018-07-23 13:52:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,231 INFO L93 Difference]: Finished difference Result 201 states and 201 transitions. [2018-07-23 13:52:09,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-23 13:52:09,231 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 197 [2018-07-23 13:52:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,232 INFO L225 Difference]: With dead ends: 201 [2018-07-23 13:52:09,232 INFO L226 Difference]: Without dead ends: 200 [2018-07-23 13:52:09,232 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2018-07-23 13:52:09,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2018-07-23 13:52:09,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2018-07-23 13:52:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-07-23 13:52:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 200 transitions. [2018-07-23 13:52:09,236 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 200 transitions. Word has length 197 [2018-07-23 13:52:09,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,236 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 200 transitions. [2018-07-23 13:52:09,236 INFO L472 AbstractCegarLoop]: Interpolant automaton has 100 states. [2018-07-23 13:52:09,236 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 200 transitions. [2018-07-23 13:52:09,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-07-23 13:52:09,237 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,237 INFO L357 BasicCegarLoop]: trace histogram [99, 98, 1, 1] [2018-07-23 13:52:09,237 INFO L414 AbstractCegarLoop]: === Iteration 99 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1982715300, now seen corresponding path program 98 times [2018-07-23 13:52:09,237 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,606 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:09,607 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2018-07-23 13:52:09,607 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,607 INFO L185 omatonBuilderFactory]: Interpolants [45631#true, 45632#false, 45633#(<= (+ main_offset 1048) main_length), 45634#(<= (+ main_offset 1044) main_length), 45635#(<= (+ main_offset 1040) main_length), 45636#(<= (+ main_offset 1036) main_length), 45637#(<= (+ main_offset 1032) main_length), 45638#(<= (+ main_offset 1028) main_length), 45639#(<= (+ main_offset 1024) main_length), 45640#(<= (+ main_offset 1020) main_length), 45641#(<= (+ main_offset 1016) main_length), 45642#(<= (+ main_offset 1012) main_length), 45643#(<= (+ main_offset 1008) main_length), 45644#(<= (+ main_offset 1004) main_length), 45645#(<= (+ main_offset 1000) main_length), 45646#(<= (+ main_offset 996) main_length), 45647#(<= (+ main_offset 992) main_length), 45648#(<= (+ main_offset 988) main_length), 45649#(<= (+ main_offset 984) main_length), 45650#(<= (+ main_offset 980) main_length), 45651#(<= (+ main_offset 976) main_length), 45652#(<= (+ main_offset 972) main_length), 45653#(<= (+ main_offset 968) main_length), 45654#(<= (+ main_offset 964) main_length), 45655#(<= (+ main_offset 960) main_length), 45656#(<= (+ main_offset 956) main_length), 45657#(<= (+ main_offset 952) main_length), 45658#(<= (+ main_offset 948) main_length), 45659#(<= (+ main_offset 944) main_length), 45660#(<= (+ main_offset 940) main_length), 45661#(<= (+ main_offset 936) main_length), 45662#(<= (+ main_offset 932) main_length), 45663#(<= (+ main_offset 928) main_length), 45664#(<= (+ main_offset 924) main_length), 45665#(<= (+ main_offset 920) main_length), 45666#(<= (+ main_offset 916) main_length), 45667#(<= (+ main_offset 912) main_length), 45668#(<= (+ main_offset 908) main_length), 45669#(<= (+ main_offset 904) main_length), 45670#(<= (+ main_offset 900) main_length), 45671#(<= (+ main_offset 896) main_length), 45672#(<= (+ main_offset 892) main_length), 45673#(<= (+ main_offset 888) main_length), 45674#(<= (+ main_offset 884) main_length), 45675#(<= (+ main_offset 880) main_length), 45676#(<= (+ main_offset 876) main_length), 45677#(<= (+ main_offset 872) main_length), 45678#(<= (+ main_offset 868) main_length), 45679#(<= (+ main_offset 864) main_length), 45680#(<= (+ main_offset 860) main_length), 45681#(<= (+ main_offset 856) main_length), 45682#(<= (+ main_offset 852) main_length), 45683#(<= (+ main_offset 848) main_length), 45684#(<= (+ main_offset 844) main_length), 45685#(<= (+ main_offset 840) main_length), 45686#(<= (+ main_offset 836) main_length), 45687#(<= (+ main_offset 832) main_length), 45688#(<= (+ main_offset 828) main_length), 45689#(<= (+ main_offset 824) main_length), 45690#(<= (+ main_offset 820) main_length), 45691#(<= (+ main_offset 816) main_length), 45692#(<= (+ main_offset 812) main_length), 45693#(<= (+ main_offset 808) main_length), 45694#(<= (+ main_offset 804) main_length), 45695#(<= (+ main_offset 800) main_length), 45696#(<= (+ main_offset 796) main_length), 45697#(<= (+ main_offset 792) main_length), 45698#(<= (+ main_offset 788) main_length), 45699#(<= (+ main_offset 784) main_length), 45700#(<= (+ main_offset 780) main_length), 45701#(<= (+ main_offset 776) main_length), 45702#(<= (+ main_offset 772) main_length), 45703#(<= (+ main_offset 768) main_length), 45704#(<= (+ main_offset 764) main_length), 45705#(<= (+ main_offset 760) main_length), 45706#(<= (+ main_offset 756) main_length), 45707#(<= (+ main_offset 752) main_length), 45708#(<= (+ main_offset 748) main_length), 45709#(<= (+ main_offset 744) main_length), 45710#(<= (+ main_offset 740) main_length), 45711#(<= (+ main_offset 736) main_length), 45712#(<= (+ main_offset 732) main_length), 45713#(<= (+ main_offset 728) main_length), 45714#(<= (+ main_offset 724) main_length), 45715#(<= (+ main_offset 720) main_length), 45716#(<= (+ main_offset 716) main_length), 45717#(<= (+ main_offset 712) main_length), 45718#(<= (+ main_offset 708) main_length), 45719#(<= (+ main_offset 704) main_length), 45720#(<= (+ main_offset 700) main_length), 45721#(<= (+ main_offset 696) main_length), 45722#(<= (+ main_offset 692) main_length), 45723#(<= (+ main_offset 688) main_length), 45724#(<= (+ main_offset 684) main_length), 45725#(<= (+ main_offset 680) main_length), 45726#(<= (+ main_offset 676) main_length), 45727#(<= (+ main_offset 672) main_length), 45728#(<= (+ main_offset 668) main_length), 45729#(<= (+ main_offset 664) main_length), 45730#(<= (+ main_offset 660) main_length), 45731#(<= (+ main_offset 656) main_length)] [2018-07-23 13:52:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 9702 backedges. 0 proven. 9702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:09,608 INFO L450 AbstractCegarLoop]: Interpolant automaton has 101 states [2018-07-23 13:52:09,609 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2018-07-23 13:52:09,609 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2018-07-23 13:52:09,609 INFO L87 Difference]: Start difference. First operand 200 states and 200 transitions. Second operand 101 states. [2018-07-23 13:52:09,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:09,738 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2018-07-23 13:52:09,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-07-23 13:52:09,738 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 199 [2018-07-23 13:52:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:09,739 INFO L225 Difference]: With dead ends: 203 [2018-07-23 13:52:09,739 INFO L226 Difference]: Without dead ends: 202 [2018-07-23 13:52:09,740 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 13:52:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-23 13:52:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-07-23 13:52:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-07-23 13:52:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2018-07-23 13:52:09,745 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 199 [2018-07-23 13:52:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:09,745 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2018-07-23 13:52:09,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 101 states. [2018-07-23 13:52:09,745 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2018-07-23 13:52:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-23 13:52:09,746 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:09,746 INFO L357 BasicCegarLoop]: trace histogram [100, 99, 1, 1] [2018-07-23 13:52:09,746 INFO L414 AbstractCegarLoop]: === Iteration 100 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1576075034, now seen corresponding path program 99 times [2018-07-23 13:52:09,746 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,282 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,282 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2018-07-23 13:52:10,283 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,283 INFO L185 omatonBuilderFactory]: Interpolants [46592#(<= (+ main_offset 856) main_length), 46593#(<= (+ main_offset 852) main_length), 46594#(<= (+ main_offset 848) main_length), 46595#(<= (+ main_offset 844) main_length), 46596#(<= (+ main_offset 840) main_length), 46597#(<= (+ main_offset 836) main_length), 46598#(<= (+ main_offset 832) main_length), 46599#(<= (+ main_offset 828) main_length), 46600#(<= (+ main_offset 824) main_length), 46601#(<= (+ main_offset 820) main_length), 46602#(<= (+ main_offset 816) main_length), 46603#(<= (+ main_offset 812) main_length), 46604#(<= (+ main_offset 808) main_length), 46605#(<= (+ main_offset 804) main_length), 46606#(<= (+ main_offset 800) main_length), 46607#(<= (+ main_offset 796) main_length), 46608#(<= (+ main_offset 792) main_length), 46609#(<= (+ main_offset 788) main_length), 46610#(<= (+ main_offset 784) main_length), 46611#(<= (+ main_offset 780) main_length), 46612#(<= (+ main_offset 776) main_length), 46613#(<= (+ main_offset 772) main_length), 46614#(<= (+ main_offset 768) main_length), 46615#(<= (+ main_offset 764) main_length), 46616#(<= (+ main_offset 760) main_length), 46617#(<= (+ main_offset 756) main_length), 46618#(<= (+ main_offset 752) main_length), 46619#(<= (+ main_offset 748) main_length), 46620#(<= (+ main_offset 744) main_length), 46621#(<= (+ main_offset 740) main_length), 46622#(<= (+ main_offset 736) main_length), 46623#(<= (+ main_offset 732) main_length), 46624#(<= (+ main_offset 728) main_length), 46625#(<= (+ main_offset 724) main_length), 46626#(<= (+ main_offset 720) main_length), 46627#(<= (+ main_offset 716) main_length), 46628#(<= (+ main_offset 712) main_length), 46629#(<= (+ main_offset 708) main_length), 46630#(<= (+ main_offset 704) main_length), 46631#(<= (+ main_offset 700) main_length), 46632#(<= (+ main_offset 696) main_length), 46633#(<= (+ main_offset 692) main_length), 46634#(<= (+ main_offset 688) main_length), 46635#(<= (+ main_offset 684) main_length), 46636#(<= (+ main_offset 680) main_length), 46637#(<= (+ main_offset 676) main_length), 46638#(<= (+ main_offset 672) main_length), 46639#(<= (+ main_offset 668) main_length), 46640#(<= (+ main_offset 664) main_length), 46641#(<= (+ main_offset 660) main_length), 46642#(<= (+ main_offset 656) main_length), 46643#(<= (+ main_offset 652) main_length), 46542#true, 46543#false, 46544#(<= (+ main_offset 1048) main_length), 46545#(<= (+ main_offset 1044) main_length), 46546#(<= (+ main_offset 1040) main_length), 46547#(<= (+ main_offset 1036) main_length), 46548#(<= (+ main_offset 1032) main_length), 46549#(<= (+ main_offset 1028) main_length), 46550#(<= (+ main_offset 1024) main_length), 46551#(<= (+ main_offset 1020) main_length), 46552#(<= (+ main_offset 1016) main_length), 46553#(<= (+ main_offset 1012) main_length), 46554#(<= (+ main_offset 1008) main_length), 46555#(<= (+ main_offset 1004) main_length), 46556#(<= (+ main_offset 1000) main_length), 46557#(<= (+ main_offset 996) main_length), 46558#(<= (+ main_offset 992) main_length), 46559#(<= (+ main_offset 988) main_length), 46560#(<= (+ main_offset 984) main_length), 46561#(<= (+ main_offset 980) main_length), 46562#(<= (+ main_offset 976) main_length), 46563#(<= (+ main_offset 972) main_length), 46564#(<= (+ main_offset 968) main_length), 46565#(<= (+ main_offset 964) main_length), 46566#(<= (+ main_offset 960) main_length), 46567#(<= (+ main_offset 956) main_length), 46568#(<= (+ main_offset 952) main_length), 46569#(<= (+ main_offset 948) main_length), 46570#(<= (+ main_offset 944) main_length), 46571#(<= (+ main_offset 940) main_length), 46572#(<= (+ main_offset 936) main_length), 46573#(<= (+ main_offset 932) main_length), 46574#(<= (+ main_offset 928) main_length), 46575#(<= (+ main_offset 924) main_length), 46576#(<= (+ main_offset 920) main_length), 46577#(<= (+ main_offset 916) main_length), 46578#(<= (+ main_offset 912) main_length), 46579#(<= (+ main_offset 908) main_length), 46580#(<= (+ main_offset 904) main_length), 46581#(<= (+ main_offset 900) main_length), 46582#(<= (+ main_offset 896) main_length), 46583#(<= (+ main_offset 892) main_length), 46584#(<= (+ main_offset 888) main_length), 46585#(<= (+ main_offset 884) main_length), 46586#(<= (+ main_offset 880) main_length), 46587#(<= (+ main_offset 876) main_length), 46588#(<= (+ main_offset 872) main_length), 46589#(<= (+ main_offset 868) main_length), 46590#(<= (+ main_offset 864) main_length), 46591#(<= (+ main_offset 860) main_length)] [2018-07-23 13:52:10,284 INFO L134 CoverageAnalysis]: Checked inductivity of 9900 backedges. 0 proven. 9900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,284 INFO L450 AbstractCegarLoop]: Interpolant automaton has 102 states [2018-07-23 13:52:10,285 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2018-07-23 13:52:10,285 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:10,285 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 102 states. [2018-07-23 13:52:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,367 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2018-07-23 13:52:10,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2018-07-23 13:52:10,367 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 201 [2018-07-23 13:52:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,369 INFO L225 Difference]: With dead ends: 205 [2018-07-23 13:52:10,369 INFO L226 Difference]: Without dead ends: 204 [2018-07-23 13:52:10,369 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2018-07-23 13:52:10,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-07-23 13:52:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-07-23 13:52:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-07-23 13:52:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2018-07-23 13:52:10,374 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 201 [2018-07-23 13:52:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,374 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2018-07-23 13:52:10,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 102 states. [2018-07-23 13:52:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2018-07-23 13:52:10,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-07-23 13:52:10,376 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,376 INFO L357 BasicCegarLoop]: trace histogram [101, 100, 1, 1] [2018-07-23 13:52:10,376 INFO L414 AbstractCegarLoop]: === Iteration 101 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1515348904, now seen corresponding path program 100 times [2018-07-23 13:52:10,376 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10100 backedges. 0 proven. 10100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,792 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:10,792 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2018-07-23 13:52:10,793 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,793 INFO L185 omatonBuilderFactory]: Interpolants [47462#true, 47463#false, 47464#(<= (+ main_offset 1048) main_length), 47465#(<= (+ main_offset 1044) main_length), 47466#(<= (+ main_offset 1040) main_length), 47467#(<= (+ main_offset 1036) main_length), 47468#(<= (+ main_offset 1032) main_length), 47469#(<= (+ main_offset 1028) main_length), 47470#(<= (+ main_offset 1024) main_length), 47471#(<= (+ main_offset 1020) main_length), 47472#(<= (+ main_offset 1016) main_length), 47473#(<= (+ main_offset 1012) main_length), 47474#(<= (+ main_offset 1008) main_length), 47475#(<= (+ main_offset 1004) main_length), 47476#(<= (+ main_offset 1000) main_length), 47477#(<= (+ main_offset 996) main_length), 47478#(<= (+ main_offset 992) main_length), 47479#(<= (+ main_offset 988) main_length), 47480#(<= (+ main_offset 984) main_length), 47481#(<= (+ main_offset 980) main_length), 47482#(<= (+ main_offset 976) main_length), 47483#(<= (+ main_offset 972) main_length), 47484#(<= (+ main_offset 968) main_length), 47485#(<= (+ main_offset 964) main_length), 47486#(<= (+ main_offset 960) main_length), 47487#(<= (+ main_offset 956) main_length), 47488#(<= (+ main_offset 952) main_length), 47489#(<= (+ main_offset 948) main_length), 47490#(<= (+ main_offset 944) main_length), 47491#(<= (+ main_offset 940) main_length), 47492#(<= (+ main_offset 936) main_length), 47493#(<= (+ main_offset 932) main_length), 47494#(<= (+ main_offset 928) main_length), 47495#(<= (+ main_offset 924) main_length), 47496#(<= (+ main_offset 920) main_length), 47497#(<= (+ main_offset 916) main_length), 47498#(<= (+ main_offset 912) main_length), 47499#(<= (+ main_offset 908) main_length), 47500#(<= (+ main_offset 904) main_length), 47501#(<= (+ main_offset 900) main_length), 47502#(<= (+ main_offset 896) main_length), 47503#(<= (+ main_offset 892) main_length), 47504#(<= (+ main_offset 888) main_length), 47505#(<= (+ main_offset 884) main_length), 47506#(<= (+ main_offset 880) main_length), 47507#(<= (+ main_offset 876) main_length), 47508#(<= (+ main_offset 872) main_length), 47509#(<= (+ main_offset 868) main_length), 47510#(<= (+ main_offset 864) main_length), 47511#(<= (+ main_offset 860) main_length), 47512#(<= (+ main_offset 856) main_length), 47513#(<= (+ main_offset 852) main_length), 47514#(<= (+ main_offset 848) main_length), 47515#(<= (+ main_offset 844) main_length), 47516#(<= (+ main_offset 840) main_length), 47517#(<= (+ main_offset 836) main_length), 47518#(<= (+ main_offset 832) main_length), 47519#(<= (+ main_offset 828) main_length), 47520#(<= (+ main_offset 824) main_length), 47521#(<= (+ main_offset 820) main_length), 47522#(<= (+ main_offset 816) main_length), 47523#(<= (+ main_offset 812) main_length), 47524#(<= (+ main_offset 808) main_length), 47525#(<= (+ main_offset 804) main_length), 47526#(<= (+ main_offset 800) main_length), 47527#(<= (+ main_offset 796) main_length), 47528#(<= (+ main_offset 792) main_length), 47529#(<= (+ main_offset 788) main_length), 47530#(<= (+ main_offset 784) main_length), 47531#(<= (+ main_offset 780) main_length), 47532#(<= (+ main_offset 776) main_length), 47533#(<= (+ main_offset 772) main_length), 47534#(<= (+ main_offset 768) main_length), 47535#(<= (+ main_offset 764) main_length), 47536#(<= (+ main_offset 760) main_length), 47537#(<= (+ main_offset 756) main_length), 47538#(<= (+ main_offset 752) main_length), 47539#(<= (+ main_offset 748) main_length), 47540#(<= (+ main_offset 744) main_length), 47541#(<= (+ main_offset 740) main_length), 47542#(<= (+ main_offset 736) main_length), 47543#(<= (+ main_offset 732) main_length), 47544#(<= (+ main_offset 728) main_length), 47545#(<= (+ main_offset 724) main_length), 47546#(<= (+ main_offset 720) main_length), 47547#(<= (+ main_offset 716) main_length), 47548#(<= (+ main_offset 712) main_length), 47549#(<= (+ main_offset 708) main_length), 47550#(<= (+ main_offset 704) main_length), 47551#(<= (+ main_offset 700) main_length), 47552#(<= (+ main_offset 696) main_length), 47553#(<= (+ main_offset 692) main_length), 47554#(<= (+ main_offset 688) main_length), 47555#(<= (+ main_offset 684) main_length), 47556#(<= (+ main_offset 680) main_length), 47557#(<= (+ main_offset 676) main_length), 47558#(<= (+ main_offset 672) main_length), 47559#(<= (+ main_offset 668) main_length), 47560#(<= (+ main_offset 664) main_length), 47561#(<= (+ main_offset 660) main_length), 47562#(<= (+ main_offset 656) main_length), 47563#(<= (+ main_offset 652) main_length), 47564#(<= (+ main_offset 648) main_length)] [2018-07-23 13:52:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10100 backedges. 0 proven. 10100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:10,794 INFO L450 AbstractCegarLoop]: Interpolant automaton has 103 states [2018-07-23 13:52:10,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2018-07-23 13:52:10,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:10,796 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand 103 states. [2018-07-23 13:52:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:10,931 INFO L93 Difference]: Finished difference Result 207 states and 207 transitions. [2018-07-23 13:52:10,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2018-07-23 13:52:10,931 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 203 [2018-07-23 13:52:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:10,932 INFO L225 Difference]: With dead ends: 207 [2018-07-23 13:52:10,932 INFO L226 Difference]: Without dead ends: 206 [2018-07-23 13:52:10,933 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2018-07-23 13:52:10,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-07-23 13:52:10,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2018-07-23 13:52:10,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-07-23 13:52:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2018-07-23 13:52:10,938 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 203 [2018-07-23 13:52:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:10,939 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2018-07-23 13:52:10,939 INFO L472 AbstractCegarLoop]: Interpolant automaton has 103 states. [2018-07-23 13:52:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2018-07-23 13:52:10,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-07-23 13:52:10,940 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:10,940 INFO L357 BasicCegarLoop]: trace histogram [102, 101, 1, 1] [2018-07-23 13:52:10,940 INFO L414 AbstractCegarLoop]: === Iteration 102 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:10,940 INFO L82 PathProgramCache]: Analyzing trace with hash 256384490, now seen corresponding path program 101 times [2018-07-23 13:52:10,941 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10302 backedges. 0 proven. 10302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,458 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:11,458 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2018-07-23 13:52:11,458 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,459 INFO L185 omatonBuilderFactory]: Interpolants [48391#true, 48392#false, 48393#(<= (+ main_offset 1048) main_length), 48394#(<= (+ main_offset 1044) main_length), 48395#(<= (+ main_offset 1040) main_length), 48396#(<= (+ main_offset 1036) main_length), 48397#(<= (+ main_offset 1032) main_length), 48398#(<= (+ main_offset 1028) main_length), 48399#(<= (+ main_offset 1024) main_length), 48400#(<= (+ main_offset 1020) main_length), 48401#(<= (+ main_offset 1016) main_length), 48402#(<= (+ main_offset 1012) main_length), 48403#(<= (+ main_offset 1008) main_length), 48404#(<= (+ main_offset 1004) main_length), 48405#(<= (+ main_offset 1000) main_length), 48406#(<= (+ main_offset 996) main_length), 48407#(<= (+ main_offset 992) main_length), 48408#(<= (+ main_offset 988) main_length), 48409#(<= (+ main_offset 984) main_length), 48410#(<= (+ main_offset 980) main_length), 48411#(<= (+ main_offset 976) main_length), 48412#(<= (+ main_offset 972) main_length), 48413#(<= (+ main_offset 968) main_length), 48414#(<= (+ main_offset 964) main_length), 48415#(<= (+ main_offset 960) main_length), 48416#(<= (+ main_offset 956) main_length), 48417#(<= (+ main_offset 952) main_length), 48418#(<= (+ main_offset 948) main_length), 48419#(<= (+ main_offset 944) main_length), 48420#(<= (+ main_offset 940) main_length), 48421#(<= (+ main_offset 936) main_length), 48422#(<= (+ main_offset 932) main_length), 48423#(<= (+ main_offset 928) main_length), 48424#(<= (+ main_offset 924) main_length), 48425#(<= (+ main_offset 920) main_length), 48426#(<= (+ main_offset 916) main_length), 48427#(<= (+ main_offset 912) main_length), 48428#(<= (+ main_offset 908) main_length), 48429#(<= (+ main_offset 904) main_length), 48430#(<= (+ main_offset 900) main_length), 48431#(<= (+ main_offset 896) main_length), 48432#(<= (+ main_offset 892) main_length), 48433#(<= (+ main_offset 888) main_length), 48434#(<= (+ main_offset 884) main_length), 48435#(<= (+ main_offset 880) main_length), 48436#(<= (+ main_offset 876) main_length), 48437#(<= (+ main_offset 872) main_length), 48438#(<= (+ main_offset 868) main_length), 48439#(<= (+ main_offset 864) main_length), 48440#(<= (+ main_offset 860) main_length), 48441#(<= (+ main_offset 856) main_length), 48442#(<= (+ main_offset 852) main_length), 48443#(<= (+ main_offset 848) main_length), 48444#(<= (+ main_offset 844) main_length), 48445#(<= (+ main_offset 840) main_length), 48446#(<= (+ main_offset 836) main_length), 48447#(<= (+ main_offset 832) main_length), 48448#(<= (+ main_offset 828) main_length), 48449#(<= (+ main_offset 824) main_length), 48450#(<= (+ main_offset 820) main_length), 48451#(<= (+ main_offset 816) main_length), 48452#(<= (+ main_offset 812) main_length), 48453#(<= (+ main_offset 808) main_length), 48454#(<= (+ main_offset 804) main_length), 48455#(<= (+ main_offset 800) main_length), 48456#(<= (+ main_offset 796) main_length), 48457#(<= (+ main_offset 792) main_length), 48458#(<= (+ main_offset 788) main_length), 48459#(<= (+ main_offset 784) main_length), 48460#(<= (+ main_offset 780) main_length), 48461#(<= (+ main_offset 776) main_length), 48462#(<= (+ main_offset 772) main_length), 48463#(<= (+ main_offset 768) main_length), 48464#(<= (+ main_offset 764) main_length), 48465#(<= (+ main_offset 760) main_length), 48466#(<= (+ main_offset 756) main_length), 48467#(<= (+ main_offset 752) main_length), 48468#(<= (+ main_offset 748) main_length), 48469#(<= (+ main_offset 744) main_length), 48470#(<= (+ main_offset 740) main_length), 48471#(<= (+ main_offset 736) main_length), 48472#(<= (+ main_offset 732) main_length), 48473#(<= (+ main_offset 728) main_length), 48474#(<= (+ main_offset 724) main_length), 48475#(<= (+ main_offset 720) main_length), 48476#(<= (+ main_offset 716) main_length), 48477#(<= (+ main_offset 712) main_length), 48478#(<= (+ main_offset 708) main_length), 48479#(<= (+ main_offset 704) main_length), 48480#(<= (+ main_offset 700) main_length), 48481#(<= (+ main_offset 696) main_length), 48482#(<= (+ main_offset 692) main_length), 48483#(<= (+ main_offset 688) main_length), 48484#(<= (+ main_offset 684) main_length), 48485#(<= (+ main_offset 680) main_length), 48486#(<= (+ main_offset 676) main_length), 48487#(<= (+ main_offset 672) main_length), 48488#(<= (+ main_offset 668) main_length), 48489#(<= (+ main_offset 664) main_length), 48490#(<= (+ main_offset 660) main_length), 48491#(<= (+ main_offset 656) main_length), 48492#(<= (+ main_offset 652) main_length), 48493#(<= (+ main_offset 648) main_length), 48494#(<= (+ main_offset 644) main_length)] [2018-07-23 13:52:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 10302 backedges. 0 proven. 10302 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:11,460 INFO L450 AbstractCegarLoop]: Interpolant automaton has 104 states [2018-07-23 13:52:11,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2018-07-23 13:52:11,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:11,462 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand 104 states. [2018-07-23 13:52:11,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:11,657 INFO L93 Difference]: Finished difference Result 209 states and 209 transitions. [2018-07-23 13:52:11,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-07-23 13:52:11,658 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 205 [2018-07-23 13:52:11,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:11,659 INFO L225 Difference]: With dead ends: 209 [2018-07-23 13:52:11,659 INFO L226 Difference]: Without dead ends: 208 [2018-07-23 13:52:11,660 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2018-07-23 13:52:11,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2018-07-23 13:52:11,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2018-07-23 13:52:11,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-07-23 13:52:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2018-07-23 13:52:11,665 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 205 [2018-07-23 13:52:11,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:11,665 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2018-07-23 13:52:11,665 INFO L472 AbstractCegarLoop]: Interpolant automaton has 104 states. [2018-07-23 13:52:11,665 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2018-07-23 13:52:11,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-07-23 13:52:11,666 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:11,666 INFO L357 BasicCegarLoop]: trace histogram [103, 102, 1, 1] [2018-07-23 13:52:11,666 INFO L414 AbstractCegarLoop]: === Iteration 103 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:11,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1572360108, now seen corresponding path program 102 times [2018-07-23 13:52:11,667 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 10506 backedges. 0 proven. 10506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,072 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,072 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2018-07-23 13:52:12,072 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,073 INFO L185 omatonBuilderFactory]: Interpolants [49408#(<= (+ main_offset 740) main_length), 49409#(<= (+ main_offset 736) main_length), 49410#(<= (+ main_offset 732) main_length), 49411#(<= (+ main_offset 728) main_length), 49412#(<= (+ main_offset 724) main_length), 49413#(<= (+ main_offset 720) main_length), 49414#(<= (+ main_offset 716) main_length), 49415#(<= (+ main_offset 712) main_length), 49416#(<= (+ main_offset 708) main_length), 49417#(<= (+ main_offset 704) main_length), 49418#(<= (+ main_offset 700) main_length), 49419#(<= (+ main_offset 696) main_length), 49420#(<= (+ main_offset 692) main_length), 49421#(<= (+ main_offset 688) main_length), 49422#(<= (+ main_offset 684) main_length), 49423#(<= (+ main_offset 680) main_length), 49424#(<= (+ main_offset 676) main_length), 49425#(<= (+ main_offset 672) main_length), 49426#(<= (+ main_offset 668) main_length), 49427#(<= (+ main_offset 664) main_length), 49428#(<= (+ main_offset 660) main_length), 49429#(<= (+ main_offset 656) main_length), 49430#(<= (+ main_offset 652) main_length), 49431#(<= (+ main_offset 648) main_length), 49432#(<= (+ main_offset 644) main_length), 49433#(<= (+ main_offset 640) main_length), 49329#true, 49330#false, 49331#(<= (+ main_offset 1048) main_length), 49332#(<= (+ main_offset 1044) main_length), 49333#(<= (+ main_offset 1040) main_length), 49334#(<= (+ main_offset 1036) main_length), 49335#(<= (+ main_offset 1032) main_length), 49336#(<= (+ main_offset 1028) main_length), 49337#(<= (+ main_offset 1024) main_length), 49338#(<= (+ main_offset 1020) main_length), 49339#(<= (+ main_offset 1016) main_length), 49340#(<= (+ main_offset 1012) main_length), 49341#(<= (+ main_offset 1008) main_length), 49342#(<= (+ main_offset 1004) main_length), 49343#(<= (+ main_offset 1000) main_length), 49344#(<= (+ main_offset 996) main_length), 49345#(<= (+ main_offset 992) main_length), 49346#(<= (+ main_offset 988) main_length), 49347#(<= (+ main_offset 984) main_length), 49348#(<= (+ main_offset 980) main_length), 49349#(<= (+ main_offset 976) main_length), 49350#(<= (+ main_offset 972) main_length), 49351#(<= (+ main_offset 968) main_length), 49352#(<= (+ main_offset 964) main_length), 49353#(<= (+ main_offset 960) main_length), 49354#(<= (+ main_offset 956) main_length), 49355#(<= (+ main_offset 952) main_length), 49356#(<= (+ main_offset 948) main_length), 49357#(<= (+ main_offset 944) main_length), 49358#(<= (+ main_offset 940) main_length), 49359#(<= (+ main_offset 936) main_length), 49360#(<= (+ main_offset 932) main_length), 49361#(<= (+ main_offset 928) main_length), 49362#(<= (+ main_offset 924) main_length), 49363#(<= (+ main_offset 920) main_length), 49364#(<= (+ main_offset 916) main_length), 49365#(<= (+ main_offset 912) main_length), 49366#(<= (+ main_offset 908) main_length), 49367#(<= (+ main_offset 904) main_length), 49368#(<= (+ main_offset 900) main_length), 49369#(<= (+ main_offset 896) main_length), 49370#(<= (+ main_offset 892) main_length), 49371#(<= (+ main_offset 888) main_length), 49372#(<= (+ main_offset 884) main_length), 49373#(<= (+ main_offset 880) main_length), 49374#(<= (+ main_offset 876) main_length), 49375#(<= (+ main_offset 872) main_length), 49376#(<= (+ main_offset 868) main_length), 49377#(<= (+ main_offset 864) main_length), 49378#(<= (+ main_offset 860) main_length), 49379#(<= (+ main_offset 856) main_length), 49380#(<= (+ main_offset 852) main_length), 49381#(<= (+ main_offset 848) main_length), 49382#(<= (+ main_offset 844) main_length), 49383#(<= (+ main_offset 840) main_length), 49384#(<= (+ main_offset 836) main_length), 49385#(<= (+ main_offset 832) main_length), 49386#(<= (+ main_offset 828) main_length), 49387#(<= (+ main_offset 824) main_length), 49388#(<= (+ main_offset 820) main_length), 49389#(<= (+ main_offset 816) main_length), 49390#(<= (+ main_offset 812) main_length), 49391#(<= (+ main_offset 808) main_length), 49392#(<= (+ main_offset 804) main_length), 49393#(<= (+ main_offset 800) main_length), 49394#(<= (+ main_offset 796) main_length), 49395#(<= (+ main_offset 792) main_length), 49396#(<= (+ main_offset 788) main_length), 49397#(<= (+ main_offset 784) main_length), 49398#(<= (+ main_offset 780) main_length), 49399#(<= (+ main_offset 776) main_length), 49400#(<= (+ main_offset 772) main_length), 49401#(<= (+ main_offset 768) main_length), 49402#(<= (+ main_offset 764) main_length), 49403#(<= (+ main_offset 760) main_length), 49404#(<= (+ main_offset 756) main_length), 49405#(<= (+ main_offset 752) main_length), 49406#(<= (+ main_offset 748) main_length), 49407#(<= (+ main_offset 744) main_length)] [2018-07-23 13:52:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10506 backedges. 0 proven. 10506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,073 INFO L450 AbstractCegarLoop]: Interpolant automaton has 105 states [2018-07-23 13:52:12,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2018-07-23 13:52:12,075 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:12,075 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand 105 states. [2018-07-23 13:52:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,179 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2018-07-23 13:52:12,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-07-23 13:52:12,180 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 207 [2018-07-23 13:52:12,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,180 INFO L225 Difference]: With dead ends: 211 [2018-07-23 13:52:12,180 INFO L226 Difference]: Without dead ends: 210 [2018-07-23 13:52:12,181 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2018-07-23 13:52:12,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-07-23 13:52:12,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2018-07-23 13:52:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-07-23 13:52:12,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2018-07-23 13:52:12,186 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 207 [2018-07-23 13:52:12,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,186 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2018-07-23 13:52:12,186 INFO L472 AbstractCegarLoop]: Interpolant automaton has 105 states. [2018-07-23 13:52:12,187 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2018-07-23 13:52:12,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-07-23 13:52:12,187 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,188 INFO L357 BasicCegarLoop]: trace histogram [104, 103, 1, 1] [2018-07-23 13:52:12,188 INFO L414 AbstractCegarLoop]: === Iteration 104 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,188 INFO L82 PathProgramCache]: Analyzing trace with hash -790423314, now seen corresponding path program 103 times [2018-07-23 13:52:12,188 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 10712 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,626 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:12,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2018-07-23 13:52:12,627 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,627 INFO L185 omatonBuilderFactory]: Interpolants [50276#true, 50277#false, 50278#(<= (+ main_offset 1048) main_length), 50279#(<= (+ main_offset 1044) main_length), 50280#(<= (+ main_offset 1040) main_length), 50281#(<= (+ main_offset 1036) main_length), 50282#(<= (+ main_offset 1032) main_length), 50283#(<= (+ main_offset 1028) main_length), 50284#(<= (+ main_offset 1024) main_length), 50285#(<= (+ main_offset 1020) main_length), 50286#(<= (+ main_offset 1016) main_length), 50287#(<= (+ main_offset 1012) main_length), 50288#(<= (+ main_offset 1008) main_length), 50289#(<= (+ main_offset 1004) main_length), 50290#(<= (+ main_offset 1000) main_length), 50291#(<= (+ main_offset 996) main_length), 50292#(<= (+ main_offset 992) main_length), 50293#(<= (+ main_offset 988) main_length), 50294#(<= (+ main_offset 984) main_length), 50295#(<= (+ main_offset 980) main_length), 50296#(<= (+ main_offset 976) main_length), 50297#(<= (+ main_offset 972) main_length), 50298#(<= (+ main_offset 968) main_length), 50299#(<= (+ main_offset 964) main_length), 50300#(<= (+ main_offset 960) main_length), 50301#(<= (+ main_offset 956) main_length), 50302#(<= (+ main_offset 952) main_length), 50303#(<= (+ main_offset 948) main_length), 50304#(<= (+ main_offset 944) main_length), 50305#(<= (+ main_offset 940) main_length), 50306#(<= (+ main_offset 936) main_length), 50307#(<= (+ main_offset 932) main_length), 50308#(<= (+ main_offset 928) main_length), 50309#(<= (+ main_offset 924) main_length), 50310#(<= (+ main_offset 920) main_length), 50311#(<= (+ main_offset 916) main_length), 50312#(<= (+ main_offset 912) main_length), 50313#(<= (+ main_offset 908) main_length), 50314#(<= (+ main_offset 904) main_length), 50315#(<= (+ main_offset 900) main_length), 50316#(<= (+ main_offset 896) main_length), 50317#(<= (+ main_offset 892) main_length), 50318#(<= (+ main_offset 888) main_length), 50319#(<= (+ main_offset 884) main_length), 50320#(<= (+ main_offset 880) main_length), 50321#(<= (+ main_offset 876) main_length), 50322#(<= (+ main_offset 872) main_length), 50323#(<= (+ main_offset 868) main_length), 50324#(<= (+ main_offset 864) main_length), 50325#(<= (+ main_offset 860) main_length), 50326#(<= (+ main_offset 856) main_length), 50327#(<= (+ main_offset 852) main_length), 50328#(<= (+ main_offset 848) main_length), 50329#(<= (+ main_offset 844) main_length), 50330#(<= (+ main_offset 840) main_length), 50331#(<= (+ main_offset 836) main_length), 50332#(<= (+ main_offset 832) main_length), 50333#(<= (+ main_offset 828) main_length), 50334#(<= (+ main_offset 824) main_length), 50335#(<= (+ main_offset 820) main_length), 50336#(<= (+ main_offset 816) main_length), 50337#(<= (+ main_offset 812) main_length), 50338#(<= (+ main_offset 808) main_length), 50339#(<= (+ main_offset 804) main_length), 50340#(<= (+ main_offset 800) main_length), 50341#(<= (+ main_offset 796) main_length), 50342#(<= (+ main_offset 792) main_length), 50343#(<= (+ main_offset 788) main_length), 50344#(<= (+ main_offset 784) main_length), 50345#(<= (+ main_offset 780) main_length), 50346#(<= (+ main_offset 776) main_length), 50347#(<= (+ main_offset 772) main_length), 50348#(<= (+ main_offset 768) main_length), 50349#(<= (+ main_offset 764) main_length), 50350#(<= (+ main_offset 760) main_length), 50351#(<= (+ main_offset 756) main_length), 50352#(<= (+ main_offset 752) main_length), 50353#(<= (+ main_offset 748) main_length), 50354#(<= (+ main_offset 744) main_length), 50355#(<= (+ main_offset 740) main_length), 50356#(<= (+ main_offset 736) main_length), 50357#(<= (+ main_offset 732) main_length), 50358#(<= (+ main_offset 728) main_length), 50359#(<= (+ main_offset 724) main_length), 50360#(<= (+ main_offset 720) main_length), 50361#(<= (+ main_offset 716) main_length), 50362#(<= (+ main_offset 712) main_length), 50363#(<= (+ main_offset 708) main_length), 50364#(<= (+ main_offset 704) main_length), 50365#(<= (+ main_offset 700) main_length), 50366#(<= (+ main_offset 696) main_length), 50367#(<= (+ main_offset 692) main_length), 50368#(<= (+ main_offset 688) main_length), 50369#(<= (+ main_offset 684) main_length), 50370#(<= (+ main_offset 680) main_length), 50371#(<= (+ main_offset 676) main_length), 50372#(<= (+ main_offset 672) main_length), 50373#(<= (+ main_offset 668) main_length), 50374#(<= (+ main_offset 664) main_length), 50375#(<= (+ main_offset 660) main_length), 50376#(<= (+ main_offset 656) main_length), 50377#(<= (+ main_offset 652) main_length), 50378#(<= (+ main_offset 648) main_length), 50379#(<= (+ main_offset 644) main_length), 50380#(<= (+ main_offset 640) main_length), 50381#(<= (+ main_offset 636) main_length)] [2018-07-23 13:52:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10712 backedges. 0 proven. 10712 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:12,628 INFO L450 AbstractCegarLoop]: Interpolant automaton has 106 states [2018-07-23 13:52:12,629 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2018-07-23 13:52:12,630 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:12,630 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand 106 states. [2018-07-23 13:52:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:12,785 INFO L93 Difference]: Finished difference Result 213 states and 213 transitions. [2018-07-23 13:52:12,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2018-07-23 13:52:12,786 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 209 [2018-07-23 13:52:12,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:12,787 INFO L225 Difference]: With dead ends: 213 [2018-07-23 13:52:12,787 INFO L226 Difference]: Without dead ends: 212 [2018-07-23 13:52:12,788 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2018-07-23 13:52:12,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-07-23 13:52:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2018-07-23 13:52:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-07-23 13:52:12,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 212 transitions. [2018-07-23 13:52:12,793 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 212 transitions. Word has length 209 [2018-07-23 13:52:12,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:12,793 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 212 transitions. [2018-07-23 13:52:12,793 INFO L472 AbstractCegarLoop]: Interpolant automaton has 106 states. [2018-07-23 13:52:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 212 transitions. [2018-07-23 13:52:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-07-23 13:52:12,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:12,795 INFO L357 BasicCegarLoop]: trace histogram [105, 104, 1, 1] [2018-07-23 13:52:12,795 INFO L414 AbstractCegarLoop]: === Iteration 105 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:12,795 INFO L82 PathProgramCache]: Analyzing trace with hash 612407728, now seen corresponding path program 104 times [2018-07-23 13:52:12,795 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10920 backedges. 0 proven. 10920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,246 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,246 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2018-07-23 13:52:13,246 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,247 INFO L185 omatonBuilderFactory]: Interpolants [51232#true, 51233#false, 51234#(<= (+ main_offset 1048) main_length), 51235#(<= (+ main_offset 1044) main_length), 51236#(<= (+ main_offset 1040) main_length), 51237#(<= (+ main_offset 1036) main_length), 51238#(<= (+ main_offset 1032) main_length), 51239#(<= (+ main_offset 1028) main_length), 51240#(<= (+ main_offset 1024) main_length), 51241#(<= (+ main_offset 1020) main_length), 51242#(<= (+ main_offset 1016) main_length), 51243#(<= (+ main_offset 1012) main_length), 51244#(<= (+ main_offset 1008) main_length), 51245#(<= (+ main_offset 1004) main_length), 51246#(<= (+ main_offset 1000) main_length), 51247#(<= (+ main_offset 996) main_length), 51248#(<= (+ main_offset 992) main_length), 51249#(<= (+ main_offset 988) main_length), 51250#(<= (+ main_offset 984) main_length), 51251#(<= (+ main_offset 980) main_length), 51252#(<= (+ main_offset 976) main_length), 51253#(<= (+ main_offset 972) main_length), 51254#(<= (+ main_offset 968) main_length), 51255#(<= (+ main_offset 964) main_length), 51256#(<= (+ main_offset 960) main_length), 51257#(<= (+ main_offset 956) main_length), 51258#(<= (+ main_offset 952) main_length), 51259#(<= (+ main_offset 948) main_length), 51260#(<= (+ main_offset 944) main_length), 51261#(<= (+ main_offset 940) main_length), 51262#(<= (+ main_offset 936) main_length), 51263#(<= (+ main_offset 932) main_length), 51264#(<= (+ main_offset 928) main_length), 51265#(<= (+ main_offset 924) main_length), 51266#(<= (+ main_offset 920) main_length), 51267#(<= (+ main_offset 916) main_length), 51268#(<= (+ main_offset 912) main_length), 51269#(<= (+ main_offset 908) main_length), 51270#(<= (+ main_offset 904) main_length), 51271#(<= (+ main_offset 900) main_length), 51272#(<= (+ main_offset 896) main_length), 51273#(<= (+ main_offset 892) main_length), 51274#(<= (+ main_offset 888) main_length), 51275#(<= (+ main_offset 884) main_length), 51276#(<= (+ main_offset 880) main_length), 51277#(<= (+ main_offset 876) main_length), 51278#(<= (+ main_offset 872) main_length), 51279#(<= (+ main_offset 868) main_length), 51280#(<= (+ main_offset 864) main_length), 51281#(<= (+ main_offset 860) main_length), 51282#(<= (+ main_offset 856) main_length), 51283#(<= (+ main_offset 852) main_length), 51284#(<= (+ main_offset 848) main_length), 51285#(<= (+ main_offset 844) main_length), 51286#(<= (+ main_offset 840) main_length), 51287#(<= (+ main_offset 836) main_length), 51288#(<= (+ main_offset 832) main_length), 51289#(<= (+ main_offset 828) main_length), 51290#(<= (+ main_offset 824) main_length), 51291#(<= (+ main_offset 820) main_length), 51292#(<= (+ main_offset 816) main_length), 51293#(<= (+ main_offset 812) main_length), 51294#(<= (+ main_offset 808) main_length), 51295#(<= (+ main_offset 804) main_length), 51296#(<= (+ main_offset 800) main_length), 51297#(<= (+ main_offset 796) main_length), 51298#(<= (+ main_offset 792) main_length), 51299#(<= (+ main_offset 788) main_length), 51300#(<= (+ main_offset 784) main_length), 51301#(<= (+ main_offset 780) main_length), 51302#(<= (+ main_offset 776) main_length), 51303#(<= (+ main_offset 772) main_length), 51304#(<= (+ main_offset 768) main_length), 51305#(<= (+ main_offset 764) main_length), 51306#(<= (+ main_offset 760) main_length), 51307#(<= (+ main_offset 756) main_length), 51308#(<= (+ main_offset 752) main_length), 51309#(<= (+ main_offset 748) main_length), 51310#(<= (+ main_offset 744) main_length), 51311#(<= (+ main_offset 740) main_length), 51312#(<= (+ main_offset 736) main_length), 51313#(<= (+ main_offset 732) main_length), 51314#(<= (+ main_offset 728) main_length), 51315#(<= (+ main_offset 724) main_length), 51316#(<= (+ main_offset 720) main_length), 51317#(<= (+ main_offset 716) main_length), 51318#(<= (+ main_offset 712) main_length), 51319#(<= (+ main_offset 708) main_length), 51320#(<= (+ main_offset 704) main_length), 51321#(<= (+ main_offset 700) main_length), 51322#(<= (+ main_offset 696) main_length), 51323#(<= (+ main_offset 692) main_length), 51324#(<= (+ main_offset 688) main_length), 51325#(<= (+ main_offset 684) main_length), 51326#(<= (+ main_offset 680) main_length), 51327#(<= (+ main_offset 676) main_length), 51328#(<= (+ main_offset 672) main_length), 51329#(<= (+ main_offset 668) main_length), 51330#(<= (+ main_offset 664) main_length), 51331#(<= (+ main_offset 660) main_length), 51332#(<= (+ main_offset 656) main_length), 51333#(<= (+ main_offset 652) main_length), 51334#(<= (+ main_offset 648) main_length), 51335#(<= (+ main_offset 644) main_length), 51336#(<= (+ main_offset 640) main_length), 51337#(<= (+ main_offset 636) main_length), 51338#(<= (+ main_offset 632) main_length)] [2018-07-23 13:52:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10920 backedges. 0 proven. 10920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,247 INFO L450 AbstractCegarLoop]: Interpolant automaton has 107 states [2018-07-23 13:52:13,248 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2018-07-23 13:52:13,248 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:13,248 INFO L87 Difference]: Start difference. First operand 212 states and 212 transitions. Second operand 107 states. [2018-07-23 13:52:13,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:13,469 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2018-07-23 13:52:13,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2018-07-23 13:52:13,469 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 211 [2018-07-23 13:52:13,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:13,470 INFO L225 Difference]: With dead ends: 215 [2018-07-23 13:52:13,470 INFO L226 Difference]: Without dead ends: 214 [2018-07-23 13:52:13,471 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2018-07-23 13:52:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-07-23 13:52:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-07-23 13:52:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-07-23 13:52:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2018-07-23 13:52:13,476 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 211 [2018-07-23 13:52:13,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:13,476 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2018-07-23 13:52:13,476 INFO L472 AbstractCegarLoop]: Interpolant automaton has 107 states. [2018-07-23 13:52:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2018-07-23 13:52:13,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-23 13:52:13,477 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:13,477 INFO L357 BasicCegarLoop]: trace histogram [106, 105, 1, 1] [2018-07-23 13:52:13,477 INFO L414 AbstractCegarLoop]: === Iteration 106 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:13,478 INFO L82 PathProgramCache]: Analyzing trace with hash 113308146, now seen corresponding path program 105 times [2018-07-23 13:52:13,478 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 11130 backedges. 0 proven. 11130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,918 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:13,918 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2018-07-23 13:52:13,918 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,919 INFO L185 omatonBuilderFactory]: Interpolants [52224#(<= (+ main_offset 948) main_length), 52225#(<= (+ main_offset 944) main_length), 52226#(<= (+ main_offset 940) main_length), 52227#(<= (+ main_offset 936) main_length), 52228#(<= (+ main_offset 932) main_length), 52229#(<= (+ main_offset 928) main_length), 52230#(<= (+ main_offset 924) main_length), 52231#(<= (+ main_offset 920) main_length), 52232#(<= (+ main_offset 916) main_length), 52233#(<= (+ main_offset 912) main_length), 52234#(<= (+ main_offset 908) main_length), 52235#(<= (+ main_offset 904) main_length), 52236#(<= (+ main_offset 900) main_length), 52237#(<= (+ main_offset 896) main_length), 52238#(<= (+ main_offset 892) main_length), 52239#(<= (+ main_offset 888) main_length), 52240#(<= (+ main_offset 884) main_length), 52241#(<= (+ main_offset 880) main_length), 52242#(<= (+ main_offset 876) main_length), 52243#(<= (+ main_offset 872) main_length), 52244#(<= (+ main_offset 868) main_length), 52245#(<= (+ main_offset 864) main_length), 52246#(<= (+ main_offset 860) main_length), 52247#(<= (+ main_offset 856) main_length), 52248#(<= (+ main_offset 852) main_length), 52249#(<= (+ main_offset 848) main_length), 52250#(<= (+ main_offset 844) main_length), 52251#(<= (+ main_offset 840) main_length), 52252#(<= (+ main_offset 836) main_length), 52253#(<= (+ main_offset 832) main_length), 52254#(<= (+ main_offset 828) main_length), 52255#(<= (+ main_offset 824) main_length), 52256#(<= (+ main_offset 820) main_length), 52257#(<= (+ main_offset 816) main_length), 52258#(<= (+ main_offset 812) main_length), 52259#(<= (+ main_offset 808) main_length), 52260#(<= (+ main_offset 804) main_length), 52261#(<= (+ main_offset 800) main_length), 52262#(<= (+ main_offset 796) main_length), 52263#(<= (+ main_offset 792) main_length), 52264#(<= (+ main_offset 788) main_length), 52265#(<= (+ main_offset 784) main_length), 52266#(<= (+ main_offset 780) main_length), 52267#(<= (+ main_offset 776) main_length), 52268#(<= (+ main_offset 772) main_length), 52269#(<= (+ main_offset 768) main_length), 52270#(<= (+ main_offset 764) main_length), 52271#(<= (+ main_offset 760) main_length), 52272#(<= (+ main_offset 756) main_length), 52273#(<= (+ main_offset 752) main_length), 52274#(<= (+ main_offset 748) main_length), 52275#(<= (+ main_offset 744) main_length), 52276#(<= (+ main_offset 740) main_length), 52277#(<= (+ main_offset 736) main_length), 52278#(<= (+ main_offset 732) main_length), 52279#(<= (+ main_offset 728) main_length), 52280#(<= (+ main_offset 724) main_length), 52281#(<= (+ main_offset 720) main_length), 52282#(<= (+ main_offset 716) main_length), 52283#(<= (+ main_offset 712) main_length), 52284#(<= (+ main_offset 708) main_length), 52285#(<= (+ main_offset 704) main_length), 52286#(<= (+ main_offset 700) main_length), 52287#(<= (+ main_offset 696) main_length), 52288#(<= (+ main_offset 692) main_length), 52289#(<= (+ main_offset 688) main_length), 52290#(<= (+ main_offset 684) main_length), 52291#(<= (+ main_offset 680) main_length), 52292#(<= (+ main_offset 676) main_length), 52293#(<= (+ main_offset 672) main_length), 52294#(<= (+ main_offset 668) main_length), 52295#(<= (+ main_offset 664) main_length), 52296#(<= (+ main_offset 660) main_length), 52297#(<= (+ main_offset 656) main_length), 52298#(<= (+ main_offset 652) main_length), 52299#(<= (+ main_offset 648) main_length), 52300#(<= (+ main_offset 644) main_length), 52301#(<= (+ main_offset 640) main_length), 52302#(<= (+ main_offset 636) main_length), 52303#(<= (+ main_offset 632) main_length), 52304#(<= (+ main_offset 628) main_length), 52197#true, 52198#false, 52199#(<= (+ main_offset 1048) main_length), 52200#(<= (+ main_offset 1044) main_length), 52201#(<= (+ main_offset 1040) main_length), 52202#(<= (+ main_offset 1036) main_length), 52203#(<= (+ main_offset 1032) main_length), 52204#(<= (+ main_offset 1028) main_length), 52205#(<= (+ main_offset 1024) main_length), 52206#(<= (+ main_offset 1020) main_length), 52207#(<= (+ main_offset 1016) main_length), 52208#(<= (+ main_offset 1012) main_length), 52209#(<= (+ main_offset 1008) main_length), 52210#(<= (+ main_offset 1004) main_length), 52211#(<= (+ main_offset 1000) main_length), 52212#(<= (+ main_offset 996) main_length), 52213#(<= (+ main_offset 992) main_length), 52214#(<= (+ main_offset 988) main_length), 52215#(<= (+ main_offset 984) main_length), 52216#(<= (+ main_offset 980) main_length), 52217#(<= (+ main_offset 976) main_length), 52218#(<= (+ main_offset 972) main_length), 52219#(<= (+ main_offset 968) main_length), 52220#(<= (+ main_offset 964) main_length), 52221#(<= (+ main_offset 960) main_length), 52222#(<= (+ main_offset 956) main_length), 52223#(<= (+ main_offset 952) main_length)] [2018-07-23 13:52:13,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11130 backedges. 0 proven. 11130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:13,920 INFO L450 AbstractCegarLoop]: Interpolant automaton has 108 states [2018-07-23 13:52:13,921 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2018-07-23 13:52:13,921 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:13,922 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand 108 states. [2018-07-23 13:52:14,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,079 INFO L93 Difference]: Finished difference Result 217 states and 217 transitions. [2018-07-23 13:52:14,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-23 13:52:14,080 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 213 [2018-07-23 13:52:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,080 INFO L225 Difference]: With dead ends: 217 [2018-07-23 13:52:14,081 INFO L226 Difference]: Without dead ends: 216 [2018-07-23 13:52:14,081 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2018-07-23 13:52:14,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-07-23 13:52:14,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2018-07-23 13:52:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-07-23 13:52:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2018-07-23 13:52:14,086 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 213 [2018-07-23 13:52:14,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,086 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2018-07-23 13:52:14,087 INFO L472 AbstractCegarLoop]: Interpolant automaton has 108 states. [2018-07-23 13:52:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2018-07-23 13:52:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-07-23 13:52:14,088 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,088 INFO L357 BasicCegarLoop]: trace histogram [107, 106, 1, 1] [2018-07-23 13:52:14,088 INFO L414 AbstractCegarLoop]: === Iteration 107 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1514946996, now seen corresponding path program 106 times [2018-07-23 13:52:14,088 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 11342 backedges. 0 proven. 11342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,510 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:14,511 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2018-07-23 13:52:14,511 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:14,511 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 13:52:14,511 INFO L185 omatonBuilderFactory]: Interpolants [53248#(<= (+ main_offset 748) main_length), 53249#(<= (+ main_offset 744) main_length), 53250#(<= (+ main_offset 740) main_length), 53251#(<= (+ main_offset 736) main_length), 53252#(<= (+ main_offset 732) main_length), 53253#(<= (+ main_offset 728) main_length), 53254#(<= (+ main_offset 724) main_length), 53255#(<= (+ main_offset 720) main_length), 53256#(<= (+ main_offset 716) main_length), 53257#(<= (+ main_offset 712) main_length), 53258#(<= (+ main_offset 708) main_length), 53259#(<= (+ main_offset 704) main_length), 53260#(<= (+ main_offset 700) main_length), 53261#(<= (+ main_offset 696) main_length), 53262#(<= (+ main_offset 692) main_length), 53263#(<= (+ main_offset 688) main_length), 53264#(<= (+ main_offset 684) main_length), 53265#(<= (+ main_offset 680) main_length), 53266#(<= (+ main_offset 676) main_length), 53267#(<= (+ main_offset 672) main_length), 53268#(<= (+ main_offset 668) main_length), 53269#(<= (+ main_offset 664) main_length), 53270#(<= (+ main_offset 660) main_length), 53271#(<= (+ main_offset 656) main_length), 53272#(<= (+ main_offset 652) main_length), 53273#(<= (+ main_offset 648) main_length), 53274#(<= (+ main_offset 644) main_length), 53275#(<= (+ main_offset 640) main_length), 53276#(<= (+ main_offset 636) main_length), 53277#(<= (+ main_offset 632) main_length), 53278#(<= (+ main_offset 628) main_length), 53279#(<= (+ main_offset 624) main_length), 53171#true, 53172#false, 53173#(<= (+ main_offset 1048) main_length), 53174#(<= (+ main_offset 1044) main_length), 53175#(<= (+ main_offset 1040) main_length), 53176#(<= (+ main_offset 1036) main_length), 53177#(<= (+ main_offset 1032) main_length), 53178#(<= (+ main_offset 1028) main_length), 53179#(<= (+ main_offset 1024) main_length), 53180#(<= (+ main_offset 1020) main_length), 53181#(<= (+ main_offset 1016) main_length), 53182#(<= (+ main_offset 1012) main_length), 53183#(<= (+ main_offset 1008) main_length), 53184#(<= (+ main_offset 1004) main_length), 53185#(<= (+ main_offset 1000) main_length), 53186#(<= (+ main_offset 996) main_length), 53187#(<= (+ main_offset 992) main_length), 53188#(<= (+ main_offset 988) main_length), 53189#(<= (+ main_offset 984) main_length), 53190#(<= (+ main_offset 980) main_length), 53191#(<= (+ main_offset 976) main_length), 53192#(<= (+ main_offset 972) main_length), 53193#(<= (+ main_offset 968) main_length), 53194#(<= (+ main_offset 964) main_length), 53195#(<= (+ main_offset 960) main_length), 53196#(<= (+ main_offset 956) main_length), 53197#(<= (+ main_offset 952) main_length), 53198#(<= (+ main_offset 948) main_length), 53199#(<= (+ main_offset 944) main_length), 53200#(<= (+ main_offset 940) main_length), 53201#(<= (+ main_offset 936) main_length), 53202#(<= (+ main_offset 932) main_length), 53203#(<= (+ main_offset 928) main_length), 53204#(<= (+ main_offset 924) main_length), 53205#(<= (+ main_offset 920) main_length), 53206#(<= (+ main_offset 916) main_length), 53207#(<= (+ main_offset 912) main_length), 53208#(<= (+ main_offset 908) main_length), 53209#(<= (+ main_offset 904) main_length), 53210#(<= (+ main_offset 900) main_length), 53211#(<= (+ main_offset 896) main_length), 53212#(<= (+ main_offset 892) main_length), 53213#(<= (+ main_offset 888) main_length), 53214#(<= (+ main_offset 884) main_length), 53215#(<= (+ main_offset 880) main_length), 53216#(<= (+ main_offset 876) main_length), 53217#(<= (+ main_offset 872) main_length), 53218#(<= (+ main_offset 868) main_length), 53219#(<= (+ main_offset 864) main_length), 53220#(<= (+ main_offset 860) main_length), 53221#(<= (+ main_offset 856) main_length), 53222#(<= (+ main_offset 852) main_length), 53223#(<= (+ main_offset 848) main_length), 53224#(<= (+ main_offset 844) main_length), 53225#(<= (+ main_offset 840) main_length), 53226#(<= (+ main_offset 836) main_length), 53227#(<= (+ main_offset 832) main_length), 53228#(<= (+ main_offset 828) main_length), 53229#(<= (+ main_offset 824) main_length), 53230#(<= (+ main_offset 820) main_length), 53231#(<= (+ main_offset 816) main_length), 53232#(<= (+ main_offset 812) main_length), 53233#(<= (+ main_offset 808) main_length), 53234#(<= (+ main_offset 804) main_length), 53235#(<= (+ main_offset 800) main_length), 53236#(<= (+ main_offset 796) main_length), 53237#(<= (+ main_offset 792) main_length), 53238#(<= (+ main_offset 788) main_length), 53239#(<= (+ main_offset 784) main_length), 53240#(<= (+ main_offset 780) main_length), 53241#(<= (+ main_offset 776) main_length), 53242#(<= (+ main_offset 772) main_length), 53243#(<= (+ main_offset 768) main_length), 53244#(<= (+ main_offset 764) main_length), 53245#(<= (+ main_offset 760) main_length), 53246#(<= (+ main_offset 756) main_length), 53247#(<= (+ main_offset 752) main_length)] [2018-07-23 13:52:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 11342 backedges. 0 proven. 11342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:14,512 INFO L450 AbstractCegarLoop]: Interpolant automaton has 109 states [2018-07-23 13:52:14,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2018-07-23 13:52:14,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:14,513 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 109 states. [2018-07-23 13:52:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:14,604 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2018-07-23 13:52:14,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-07-23 13:52:14,604 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 215 [2018-07-23 13:52:14,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:14,605 INFO L225 Difference]: With dead ends: 219 [2018-07-23 13:52:14,605 INFO L226 Difference]: Without dead ends: 218 [2018-07-23 13:52:14,606 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2018-07-23 13:52:14,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-07-23 13:52:14,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2018-07-23 13:52:14,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-07-23 13:52:14,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2018-07-23 13:52:14,610 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 215 [2018-07-23 13:52:14,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:14,610 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2018-07-23 13:52:14,610 INFO L472 AbstractCegarLoop]: Interpolant automaton has 109 states. [2018-07-23 13:52:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2018-07-23 13:52:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-07-23 13:52:14,611 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:14,611 INFO L357 BasicCegarLoop]: trace histogram [108, 107, 1, 1] [2018-07-23 13:52:14,611 INFO L414 AbstractCegarLoop]: === Iteration 108 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:14,612 INFO L82 PathProgramCache]: Analyzing trace with hash -129849098, now seen corresponding path program 107 times [2018-07-23 13:52:14,612 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 11556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,051 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,051 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2018-07-23 13:52:15,051 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,052 INFO L185 omatonBuilderFactory]: Interpolants [54154#true, 54155#false, 54156#(<= (+ main_offset 1048) main_length), 54157#(<= (+ main_offset 1044) main_length), 54158#(<= (+ main_offset 1040) main_length), 54159#(<= (+ main_offset 1036) main_length), 54160#(<= (+ main_offset 1032) main_length), 54161#(<= (+ main_offset 1028) main_length), 54162#(<= (+ main_offset 1024) main_length), 54163#(<= (+ main_offset 1020) main_length), 54164#(<= (+ main_offset 1016) main_length), 54165#(<= (+ main_offset 1012) main_length), 54166#(<= (+ main_offset 1008) main_length), 54167#(<= (+ main_offset 1004) main_length), 54168#(<= (+ main_offset 1000) main_length), 54169#(<= (+ main_offset 996) main_length), 54170#(<= (+ main_offset 992) main_length), 54171#(<= (+ main_offset 988) main_length), 54172#(<= (+ main_offset 984) main_length), 54173#(<= (+ main_offset 980) main_length), 54174#(<= (+ main_offset 976) main_length), 54175#(<= (+ main_offset 972) main_length), 54176#(<= (+ main_offset 968) main_length), 54177#(<= (+ main_offset 964) main_length), 54178#(<= (+ main_offset 960) main_length), 54179#(<= (+ main_offset 956) main_length), 54180#(<= (+ main_offset 952) main_length), 54181#(<= (+ main_offset 948) main_length), 54182#(<= (+ main_offset 944) main_length), 54183#(<= (+ main_offset 940) main_length), 54184#(<= (+ main_offset 936) main_length), 54185#(<= (+ main_offset 932) main_length), 54186#(<= (+ main_offset 928) main_length), 54187#(<= (+ main_offset 924) main_length), 54188#(<= (+ main_offset 920) main_length), 54189#(<= (+ main_offset 916) main_length), 54190#(<= (+ main_offset 912) main_length), 54191#(<= (+ main_offset 908) main_length), 54192#(<= (+ main_offset 904) main_length), 54193#(<= (+ main_offset 900) main_length), 54194#(<= (+ main_offset 896) main_length), 54195#(<= (+ main_offset 892) main_length), 54196#(<= (+ main_offset 888) main_length), 54197#(<= (+ main_offset 884) main_length), 54198#(<= (+ main_offset 880) main_length), 54199#(<= (+ main_offset 876) main_length), 54200#(<= (+ main_offset 872) main_length), 54201#(<= (+ main_offset 868) main_length), 54202#(<= (+ main_offset 864) main_length), 54203#(<= (+ main_offset 860) main_length), 54204#(<= (+ main_offset 856) main_length), 54205#(<= (+ main_offset 852) main_length), 54206#(<= (+ main_offset 848) main_length), 54207#(<= (+ main_offset 844) main_length), 54208#(<= (+ main_offset 840) main_length), 54209#(<= (+ main_offset 836) main_length), 54210#(<= (+ main_offset 832) main_length), 54211#(<= (+ main_offset 828) main_length), 54212#(<= (+ main_offset 824) main_length), 54213#(<= (+ main_offset 820) main_length), 54214#(<= (+ main_offset 816) main_length), 54215#(<= (+ main_offset 812) main_length), 54216#(<= (+ main_offset 808) main_length), 54217#(<= (+ main_offset 804) main_length), 54218#(<= (+ main_offset 800) main_length), 54219#(<= (+ main_offset 796) main_length), 54220#(<= (+ main_offset 792) main_length), 54221#(<= (+ main_offset 788) main_length), 54222#(<= (+ main_offset 784) main_length), 54223#(<= (+ main_offset 780) main_length), 54224#(<= (+ main_offset 776) main_length), 54225#(<= (+ main_offset 772) main_length), 54226#(<= (+ main_offset 768) main_length), 54227#(<= (+ main_offset 764) main_length), 54228#(<= (+ main_offset 760) main_length), 54229#(<= (+ main_offset 756) main_length), 54230#(<= (+ main_offset 752) main_length), 54231#(<= (+ main_offset 748) main_length), 54232#(<= (+ main_offset 744) main_length), 54233#(<= (+ main_offset 740) main_length), 54234#(<= (+ main_offset 736) main_length), 54235#(<= (+ main_offset 732) main_length), 54236#(<= (+ main_offset 728) main_length), 54237#(<= (+ main_offset 724) main_length), 54238#(<= (+ main_offset 720) main_length), 54239#(<= (+ main_offset 716) main_length), 54240#(<= (+ main_offset 712) main_length), 54241#(<= (+ main_offset 708) main_length), 54242#(<= (+ main_offset 704) main_length), 54243#(<= (+ main_offset 700) main_length), 54244#(<= (+ main_offset 696) main_length), 54245#(<= (+ main_offset 692) main_length), 54246#(<= (+ main_offset 688) main_length), 54247#(<= (+ main_offset 684) main_length), 54248#(<= (+ main_offset 680) main_length), 54249#(<= (+ main_offset 676) main_length), 54250#(<= (+ main_offset 672) main_length), 54251#(<= (+ main_offset 668) main_length), 54252#(<= (+ main_offset 664) main_length), 54253#(<= (+ main_offset 660) main_length), 54254#(<= (+ main_offset 656) main_length), 54255#(<= (+ main_offset 652) main_length), 54256#(<= (+ main_offset 648) main_length), 54257#(<= (+ main_offset 644) main_length), 54258#(<= (+ main_offset 640) main_length), 54259#(<= (+ main_offset 636) main_length), 54260#(<= (+ main_offset 632) main_length), 54261#(<= (+ main_offset 628) main_length), 54262#(<= (+ main_offset 624) main_length), 54263#(<= (+ main_offset 620) main_length)] [2018-07-23 13:52:15,052 INFO L134 CoverageAnalysis]: Checked inductivity of 11556 backedges. 0 proven. 11556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,052 INFO L450 AbstractCegarLoop]: Interpolant automaton has 110 states [2018-07-23 13:52:15,053 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2018-07-23 13:52:15,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:15,054 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand 110 states. [2018-07-23 13:52:15,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,256 INFO L93 Difference]: Finished difference Result 221 states and 221 transitions. [2018-07-23 13:52:15,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2018-07-23 13:52:15,256 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 217 [2018-07-23 13:52:15,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,257 INFO L225 Difference]: With dead ends: 221 [2018-07-23 13:52:15,257 INFO L226 Difference]: Without dead ends: 220 [2018-07-23 13:52:15,257 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2018-07-23 13:52:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2018-07-23 13:52:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2018-07-23 13:52:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-07-23 13:52:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2018-07-23 13:52:15,262 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 217 [2018-07-23 13:52:15,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,262 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2018-07-23 13:52:15,263 INFO L472 AbstractCegarLoop]: Interpolant automaton has 110 states. [2018-07-23 13:52:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2018-07-23 13:52:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-07-23 13:52:15,264 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,264 INFO L357 BasicCegarLoop]: trace histogram [109, 108, 1, 1] [2018-07-23 13:52:15,264 INFO L414 AbstractCegarLoop]: === Iteration 109 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,264 INFO L82 PathProgramCache]: Analyzing trace with hash -230930504, now seen corresponding path program 108 times [2018-07-23 13:52:15,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 11772 backedges. 0 proven. 11772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,783 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:15,784 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2018-07-23 13:52:15,784 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,784 INFO L185 omatonBuilderFactory]: Interpolants [55146#true, 55147#false, 55148#(<= (+ main_offset 1048) main_length), 55149#(<= (+ main_offset 1044) main_length), 55150#(<= (+ main_offset 1040) main_length), 55151#(<= (+ main_offset 1036) main_length), 55152#(<= (+ main_offset 1032) main_length), 55153#(<= (+ main_offset 1028) main_length), 55154#(<= (+ main_offset 1024) main_length), 55155#(<= (+ main_offset 1020) main_length), 55156#(<= (+ main_offset 1016) main_length), 55157#(<= (+ main_offset 1012) main_length), 55158#(<= (+ main_offset 1008) main_length), 55159#(<= (+ main_offset 1004) main_length), 55160#(<= (+ main_offset 1000) main_length), 55161#(<= (+ main_offset 996) main_length), 55162#(<= (+ main_offset 992) main_length), 55163#(<= (+ main_offset 988) main_length), 55164#(<= (+ main_offset 984) main_length), 55165#(<= (+ main_offset 980) main_length), 55166#(<= (+ main_offset 976) main_length), 55167#(<= (+ main_offset 972) main_length), 55168#(<= (+ main_offset 968) main_length), 55169#(<= (+ main_offset 964) main_length), 55170#(<= (+ main_offset 960) main_length), 55171#(<= (+ main_offset 956) main_length), 55172#(<= (+ main_offset 952) main_length), 55173#(<= (+ main_offset 948) main_length), 55174#(<= (+ main_offset 944) main_length), 55175#(<= (+ main_offset 940) main_length), 55176#(<= (+ main_offset 936) main_length), 55177#(<= (+ main_offset 932) main_length), 55178#(<= (+ main_offset 928) main_length), 55179#(<= (+ main_offset 924) main_length), 55180#(<= (+ main_offset 920) main_length), 55181#(<= (+ main_offset 916) main_length), 55182#(<= (+ main_offset 912) main_length), 55183#(<= (+ main_offset 908) main_length), 55184#(<= (+ main_offset 904) main_length), 55185#(<= (+ main_offset 900) main_length), 55186#(<= (+ main_offset 896) main_length), 55187#(<= (+ main_offset 892) main_length), 55188#(<= (+ main_offset 888) main_length), 55189#(<= (+ main_offset 884) main_length), 55190#(<= (+ main_offset 880) main_length), 55191#(<= (+ main_offset 876) main_length), 55192#(<= (+ main_offset 872) main_length), 55193#(<= (+ main_offset 868) main_length), 55194#(<= (+ main_offset 864) main_length), 55195#(<= (+ main_offset 860) main_length), 55196#(<= (+ main_offset 856) main_length), 55197#(<= (+ main_offset 852) main_length), 55198#(<= (+ main_offset 848) main_length), 55199#(<= (+ main_offset 844) main_length), 55200#(<= (+ main_offset 840) main_length), 55201#(<= (+ main_offset 836) main_length), 55202#(<= (+ main_offset 832) main_length), 55203#(<= (+ main_offset 828) main_length), 55204#(<= (+ main_offset 824) main_length), 55205#(<= (+ main_offset 820) main_length), 55206#(<= (+ main_offset 816) main_length), 55207#(<= (+ main_offset 812) main_length), 55208#(<= (+ main_offset 808) main_length), 55209#(<= (+ main_offset 804) main_length), 55210#(<= (+ main_offset 800) main_length), 55211#(<= (+ main_offset 796) main_length), 55212#(<= (+ main_offset 792) main_length), 55213#(<= (+ main_offset 788) main_length), 55214#(<= (+ main_offset 784) main_length), 55215#(<= (+ main_offset 780) main_length), 55216#(<= (+ main_offset 776) main_length), 55217#(<= (+ main_offset 772) main_length), 55218#(<= (+ main_offset 768) main_length), 55219#(<= (+ main_offset 764) main_length), 55220#(<= (+ main_offset 760) main_length), 55221#(<= (+ main_offset 756) main_length), 55222#(<= (+ main_offset 752) main_length), 55223#(<= (+ main_offset 748) main_length), 55224#(<= (+ main_offset 744) main_length), 55225#(<= (+ main_offset 740) main_length), 55226#(<= (+ main_offset 736) main_length), 55227#(<= (+ main_offset 732) main_length), 55228#(<= (+ main_offset 728) main_length), 55229#(<= (+ main_offset 724) main_length), 55230#(<= (+ main_offset 720) main_length), 55231#(<= (+ main_offset 716) main_length), 55232#(<= (+ main_offset 712) main_length), 55233#(<= (+ main_offset 708) main_length), 55234#(<= (+ main_offset 704) main_length), 55235#(<= (+ main_offset 700) main_length), 55236#(<= (+ main_offset 696) main_length), 55237#(<= (+ main_offset 692) main_length), 55238#(<= (+ main_offset 688) main_length), 55239#(<= (+ main_offset 684) main_length), 55240#(<= (+ main_offset 680) main_length), 55241#(<= (+ main_offset 676) main_length), 55242#(<= (+ main_offset 672) main_length), 55243#(<= (+ main_offset 668) main_length), 55244#(<= (+ main_offset 664) main_length), 55245#(<= (+ main_offset 660) main_length), 55246#(<= (+ main_offset 656) main_length), 55247#(<= (+ main_offset 652) main_length), 55248#(<= (+ main_offset 648) main_length), 55249#(<= (+ main_offset 644) main_length), 55250#(<= (+ main_offset 640) main_length), 55251#(<= (+ main_offset 636) main_length), 55252#(<= (+ main_offset 632) main_length), 55253#(<= (+ main_offset 628) main_length), 55254#(<= (+ main_offset 624) main_length), 55255#(<= (+ main_offset 620) main_length), 55256#(<= (+ main_offset 616) main_length)] [2018-07-23 13:52:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 11772 backedges. 0 proven. 11772 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:15,785 INFO L450 AbstractCegarLoop]: Interpolant automaton has 111 states [2018-07-23 13:52:15,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2018-07-23 13:52:15,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:15,787 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand 111 states. [2018-07-23 13:52:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:15,980 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2018-07-23 13:52:15,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-07-23 13:52:15,980 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 219 [2018-07-23 13:52:15,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:15,981 INFO L225 Difference]: With dead ends: 223 [2018-07-23 13:52:15,981 INFO L226 Difference]: Without dead ends: 222 [2018-07-23 13:52:15,982 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2018-07-23 13:52:15,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-07-23 13:52:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2018-07-23 13:52:15,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-07-23 13:52:15,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2018-07-23 13:52:15,989 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 219 [2018-07-23 13:52:15,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:15,989 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2018-07-23 13:52:15,990 INFO L472 AbstractCegarLoop]: Interpolant automaton has 111 states. [2018-07-23 13:52:15,990 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2018-07-23 13:52:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-07-23 13:52:15,991 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:15,991 INFO L357 BasicCegarLoop]: trace histogram [110, 109, 1, 1] [2018-07-23 13:52:15,991 INFO L414 AbstractCegarLoop]: === Iteration 110 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:15,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1414086138, now seen corresponding path program 109 times [2018-07-23 13:52:15,992 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 11990 backedges. 0 proven. 11990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,482 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:16,482 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2018-07-23 13:52:16,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:16,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,482 INFO L185 omatonBuilderFactory]: Interpolants [56147#true, 56148#false, 56149#(<= (+ main_offset 1048) main_length), 56150#(<= (+ main_offset 1044) main_length), 56151#(<= (+ main_offset 1040) main_length), 56152#(<= (+ main_offset 1036) main_length), 56153#(<= (+ main_offset 1032) main_length), 56154#(<= (+ main_offset 1028) main_length), 56155#(<= (+ main_offset 1024) main_length), 56156#(<= (+ main_offset 1020) main_length), 56157#(<= (+ main_offset 1016) main_length), 56158#(<= (+ main_offset 1012) main_length), 56159#(<= (+ main_offset 1008) main_length), 56160#(<= (+ main_offset 1004) main_length), 56161#(<= (+ main_offset 1000) main_length), 56162#(<= (+ main_offset 996) main_length), 56163#(<= (+ main_offset 992) main_length), 56164#(<= (+ main_offset 988) main_length), 56165#(<= (+ main_offset 984) main_length), 56166#(<= (+ main_offset 980) main_length), 56167#(<= (+ main_offset 976) main_length), 56168#(<= (+ main_offset 972) main_length), 56169#(<= (+ main_offset 968) main_length), 56170#(<= (+ main_offset 964) main_length), 56171#(<= (+ main_offset 960) main_length), 56172#(<= (+ main_offset 956) main_length), 56173#(<= (+ main_offset 952) main_length), 56174#(<= (+ main_offset 948) main_length), 56175#(<= (+ main_offset 944) main_length), 56176#(<= (+ main_offset 940) main_length), 56177#(<= (+ main_offset 936) main_length), 56178#(<= (+ main_offset 932) main_length), 56179#(<= (+ main_offset 928) main_length), 56180#(<= (+ main_offset 924) main_length), 56181#(<= (+ main_offset 920) main_length), 56182#(<= (+ main_offset 916) main_length), 56183#(<= (+ main_offset 912) main_length), 56184#(<= (+ main_offset 908) main_length), 56185#(<= (+ main_offset 904) main_length), 56186#(<= (+ main_offset 900) main_length), 56187#(<= (+ main_offset 896) main_length), 56188#(<= (+ main_offset 892) main_length), 56189#(<= (+ main_offset 888) main_length), 56190#(<= (+ main_offset 884) main_length), 56191#(<= (+ main_offset 880) main_length), 56192#(<= (+ main_offset 876) main_length), 56193#(<= (+ main_offset 872) main_length), 56194#(<= (+ main_offset 868) main_length), 56195#(<= (+ main_offset 864) main_length), 56196#(<= (+ main_offset 860) main_length), 56197#(<= (+ main_offset 856) main_length), 56198#(<= (+ main_offset 852) main_length), 56199#(<= (+ main_offset 848) main_length), 56200#(<= (+ main_offset 844) main_length), 56201#(<= (+ main_offset 840) main_length), 56202#(<= (+ main_offset 836) main_length), 56203#(<= (+ main_offset 832) main_length), 56204#(<= (+ main_offset 828) main_length), 56205#(<= (+ main_offset 824) main_length), 56206#(<= (+ main_offset 820) main_length), 56207#(<= (+ main_offset 816) main_length), 56208#(<= (+ main_offset 812) main_length), 56209#(<= (+ main_offset 808) main_length), 56210#(<= (+ main_offset 804) main_length), 56211#(<= (+ main_offset 800) main_length), 56212#(<= (+ main_offset 796) main_length), 56213#(<= (+ main_offset 792) main_length), 56214#(<= (+ main_offset 788) main_length), 56215#(<= (+ main_offset 784) main_length), 56216#(<= (+ main_offset 780) main_length), 56217#(<= (+ main_offset 776) main_length), 56218#(<= (+ main_offset 772) main_length), 56219#(<= (+ main_offset 768) main_length), 56220#(<= (+ main_offset 764) main_length), 56221#(<= (+ main_offset 760) main_length), 56222#(<= (+ main_offset 756) main_length), 56223#(<= (+ main_offset 752) main_length), 56224#(<= (+ main_offset 748) main_length), 56225#(<= (+ main_offset 744) main_length), 56226#(<= (+ main_offset 740) main_length), 56227#(<= (+ main_offset 736) main_length), 56228#(<= (+ main_offset 732) main_length), 56229#(<= (+ main_offset 728) main_length), 56230#(<= (+ main_offset 724) main_length), 56231#(<= (+ main_offset 720) main_length), 56232#(<= (+ main_offset 716) main_length), 56233#(<= (+ main_offset 712) main_length), 56234#(<= (+ main_offset 708) main_length), 56235#(<= (+ main_offset 704) main_length), 56236#(<= (+ main_offset 700) main_length), 56237#(<= (+ main_offset 696) main_length), 56238#(<= (+ main_offset 692) main_length), 56239#(<= (+ main_offset 688) main_length), 56240#(<= (+ main_offset 684) main_length), 56241#(<= (+ main_offset 680) main_length), 56242#(<= (+ main_offset 676) main_length), 56243#(<= (+ main_offset 672) main_length), 56244#(<= (+ main_offset 668) main_length), 56245#(<= (+ main_offset 664) main_length), 56246#(<= (+ main_offset 660) main_length), 56247#(<= (+ main_offset 656) main_length), 56248#(<= (+ main_offset 652) main_length), 56249#(<= (+ main_offset 648) main_length), 56250#(<= (+ main_offset 644) main_length), 56251#(<= (+ main_offset 640) main_length), 56252#(<= (+ main_offset 636) main_length), 56253#(<= (+ main_offset 632) main_length), 56254#(<= (+ main_offset 628) main_length), 56255#(<= (+ main_offset 624) main_length), 56256#(<= (+ main_offset 620) main_length), 56257#(<= (+ main_offset 616) main_length), 56258#(<= (+ main_offset 612) main_length)] [2018-07-23 13:52:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11990 backedges. 0 proven. 11990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:16,483 INFO L450 AbstractCegarLoop]: Interpolant automaton has 112 states [2018-07-23 13:52:16,484 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2018-07-23 13:52:16,485 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:16,485 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand 112 states. [2018-07-23 13:52:16,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:16,665 INFO L93 Difference]: Finished difference Result 225 states and 225 transitions. [2018-07-23 13:52:16,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2018-07-23 13:52:16,665 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 221 [2018-07-23 13:52:16,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:16,666 INFO L225 Difference]: With dead ends: 225 [2018-07-23 13:52:16,666 INFO L226 Difference]: Without dead ends: 224 [2018-07-23 13:52:16,667 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2018-07-23 13:52:16,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-07-23 13:52:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2018-07-23 13:52:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-07-23 13:52:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 224 transitions. [2018-07-23 13:52:16,672 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 224 transitions. Word has length 221 [2018-07-23 13:52:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:16,672 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 224 transitions. [2018-07-23 13:52:16,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 112 states. [2018-07-23 13:52:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 224 transitions. [2018-07-23 13:52:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-07-23 13:52:16,674 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:16,674 INFO L357 BasicCegarLoop]: trace histogram [111, 110, 1, 1] [2018-07-23 13:52:16,674 INFO L414 AbstractCegarLoop]: === Iteration 111 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:16,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1727114172, now seen corresponding path program 110 times [2018-07-23 13:52:16,674 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12210 backedges. 0 proven. 12210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,125 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,125 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2018-07-23 13:52:17,125 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,126 INFO L185 omatonBuilderFactory]: Interpolants [57157#true, 57158#false, 57159#(<= (+ main_offset 1048) main_length), 57160#(<= (+ main_offset 1044) main_length), 57161#(<= (+ main_offset 1040) main_length), 57162#(<= (+ main_offset 1036) main_length), 57163#(<= (+ main_offset 1032) main_length), 57164#(<= (+ main_offset 1028) main_length), 57165#(<= (+ main_offset 1024) main_length), 57166#(<= (+ main_offset 1020) main_length), 57167#(<= (+ main_offset 1016) main_length), 57168#(<= (+ main_offset 1012) main_length), 57169#(<= (+ main_offset 1008) main_length), 57170#(<= (+ main_offset 1004) main_length), 57171#(<= (+ main_offset 1000) main_length), 57172#(<= (+ main_offset 996) main_length), 57173#(<= (+ main_offset 992) main_length), 57174#(<= (+ main_offset 988) main_length), 57175#(<= (+ main_offset 984) main_length), 57176#(<= (+ main_offset 980) main_length), 57177#(<= (+ main_offset 976) main_length), 57178#(<= (+ main_offset 972) main_length), 57179#(<= (+ main_offset 968) main_length), 57180#(<= (+ main_offset 964) main_length), 57181#(<= (+ main_offset 960) main_length), 57182#(<= (+ main_offset 956) main_length), 57183#(<= (+ main_offset 952) main_length), 57184#(<= (+ main_offset 948) main_length), 57185#(<= (+ main_offset 944) main_length), 57186#(<= (+ main_offset 940) main_length), 57187#(<= (+ main_offset 936) main_length), 57188#(<= (+ main_offset 932) main_length), 57189#(<= (+ main_offset 928) main_length), 57190#(<= (+ main_offset 924) main_length), 57191#(<= (+ main_offset 920) main_length), 57192#(<= (+ main_offset 916) main_length), 57193#(<= (+ main_offset 912) main_length), 57194#(<= (+ main_offset 908) main_length), 57195#(<= (+ main_offset 904) main_length), 57196#(<= (+ main_offset 900) main_length), 57197#(<= (+ main_offset 896) main_length), 57198#(<= (+ main_offset 892) main_length), 57199#(<= (+ main_offset 888) main_length), 57200#(<= (+ main_offset 884) main_length), 57201#(<= (+ main_offset 880) main_length), 57202#(<= (+ main_offset 876) main_length), 57203#(<= (+ main_offset 872) main_length), 57204#(<= (+ main_offset 868) main_length), 57205#(<= (+ main_offset 864) main_length), 57206#(<= (+ main_offset 860) main_length), 57207#(<= (+ main_offset 856) main_length), 57208#(<= (+ main_offset 852) main_length), 57209#(<= (+ main_offset 848) main_length), 57210#(<= (+ main_offset 844) main_length), 57211#(<= (+ main_offset 840) main_length), 57212#(<= (+ main_offset 836) main_length), 57213#(<= (+ main_offset 832) main_length), 57214#(<= (+ main_offset 828) main_length), 57215#(<= (+ main_offset 824) main_length), 57216#(<= (+ main_offset 820) main_length), 57217#(<= (+ main_offset 816) main_length), 57218#(<= (+ main_offset 812) main_length), 57219#(<= (+ main_offset 808) main_length), 57220#(<= (+ main_offset 804) main_length), 57221#(<= (+ main_offset 800) main_length), 57222#(<= (+ main_offset 796) main_length), 57223#(<= (+ main_offset 792) main_length), 57224#(<= (+ main_offset 788) main_length), 57225#(<= (+ main_offset 784) main_length), 57226#(<= (+ main_offset 780) main_length), 57227#(<= (+ main_offset 776) main_length), 57228#(<= (+ main_offset 772) main_length), 57229#(<= (+ main_offset 768) main_length), 57230#(<= (+ main_offset 764) main_length), 57231#(<= (+ main_offset 760) main_length), 57232#(<= (+ main_offset 756) main_length), 57233#(<= (+ main_offset 752) main_length), 57234#(<= (+ main_offset 748) main_length), 57235#(<= (+ main_offset 744) main_length), 57236#(<= (+ main_offset 740) main_length), 57237#(<= (+ main_offset 736) main_length), 57238#(<= (+ main_offset 732) main_length), 57239#(<= (+ main_offset 728) main_length), 57240#(<= (+ main_offset 724) main_length), 57241#(<= (+ main_offset 720) main_length), 57242#(<= (+ main_offset 716) main_length), 57243#(<= (+ main_offset 712) main_length), 57244#(<= (+ main_offset 708) main_length), 57245#(<= (+ main_offset 704) main_length), 57246#(<= (+ main_offset 700) main_length), 57247#(<= (+ main_offset 696) main_length), 57248#(<= (+ main_offset 692) main_length), 57249#(<= (+ main_offset 688) main_length), 57250#(<= (+ main_offset 684) main_length), 57251#(<= (+ main_offset 680) main_length), 57252#(<= (+ main_offset 676) main_length), 57253#(<= (+ main_offset 672) main_length), 57254#(<= (+ main_offset 668) main_length), 57255#(<= (+ main_offset 664) main_length), 57256#(<= (+ main_offset 660) main_length), 57257#(<= (+ main_offset 656) main_length), 57258#(<= (+ main_offset 652) main_length), 57259#(<= (+ main_offset 648) main_length), 57260#(<= (+ main_offset 644) main_length), 57261#(<= (+ main_offset 640) main_length), 57262#(<= (+ main_offset 636) main_length), 57263#(<= (+ main_offset 632) main_length), 57264#(<= (+ main_offset 628) main_length), 57265#(<= (+ main_offset 624) main_length), 57266#(<= (+ main_offset 620) main_length), 57267#(<= (+ main_offset 616) main_length), 57268#(<= (+ main_offset 612) main_length), 57269#(<= (+ main_offset 608) main_length)] [2018-07-23 13:52:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 12210 backedges. 0 proven. 12210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,127 INFO L450 AbstractCegarLoop]: Interpolant automaton has 113 states [2018-07-23 13:52:17,127 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2018-07-23 13:52:17,128 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:17,128 INFO L87 Difference]: Start difference. First operand 224 states and 224 transitions. Second operand 113 states. [2018-07-23 13:52:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,276 INFO L93 Difference]: Finished difference Result 227 states and 227 transitions. [2018-07-23 13:52:17,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2018-07-23 13:52:17,276 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 223 [2018-07-23 13:52:17,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,276 INFO L225 Difference]: With dead ends: 227 [2018-07-23 13:52:17,276 INFO L226 Difference]: Without dead ends: 226 [2018-07-23 13:52:17,277 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2018-07-23 13:52:17,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-07-23 13:52:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2018-07-23 13:52:17,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-07-23 13:52:17,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2018-07-23 13:52:17,281 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 223 [2018-07-23 13:52:17,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,281 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2018-07-23 13:52:17,281 INFO L472 AbstractCegarLoop]: Interpolant automaton has 113 states. [2018-07-23 13:52:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2018-07-23 13:52:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-23 13:52:17,282 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,282 INFO L357 BasicCegarLoop]: trace histogram [112, 111, 1, 1] [2018-07-23 13:52:17,282 INFO L414 AbstractCegarLoop]: === Iteration 112 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1899344126, now seen corresponding path program 111 times [2018-07-23 13:52:17,283 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 12432 backedges. 0 proven. 12432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,728 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:17,728 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2018-07-23 13:52:17,729 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,729 INFO L185 omatonBuilderFactory]: Interpolants [58176#true, 58177#false, 58178#(<= (+ main_offset 1048) main_length), 58179#(<= (+ main_offset 1044) main_length), 58180#(<= (+ main_offset 1040) main_length), 58181#(<= (+ main_offset 1036) main_length), 58182#(<= (+ main_offset 1032) main_length), 58183#(<= (+ main_offset 1028) main_length), 58184#(<= (+ main_offset 1024) main_length), 58185#(<= (+ main_offset 1020) main_length), 58186#(<= (+ main_offset 1016) main_length), 58187#(<= (+ main_offset 1012) main_length), 58188#(<= (+ main_offset 1008) main_length), 58189#(<= (+ main_offset 1004) main_length), 58190#(<= (+ main_offset 1000) main_length), 58191#(<= (+ main_offset 996) main_length), 58192#(<= (+ main_offset 992) main_length), 58193#(<= (+ main_offset 988) main_length), 58194#(<= (+ main_offset 984) main_length), 58195#(<= (+ main_offset 980) main_length), 58196#(<= (+ main_offset 976) main_length), 58197#(<= (+ main_offset 972) main_length), 58198#(<= (+ main_offset 968) main_length), 58199#(<= (+ main_offset 964) main_length), 58200#(<= (+ main_offset 960) main_length), 58201#(<= (+ main_offset 956) main_length), 58202#(<= (+ main_offset 952) main_length), 58203#(<= (+ main_offset 948) main_length), 58204#(<= (+ main_offset 944) main_length), 58205#(<= (+ main_offset 940) main_length), 58206#(<= (+ main_offset 936) main_length), 58207#(<= (+ main_offset 932) main_length), 58208#(<= (+ main_offset 928) main_length), 58209#(<= (+ main_offset 924) main_length), 58210#(<= (+ main_offset 920) main_length), 58211#(<= (+ main_offset 916) main_length), 58212#(<= (+ main_offset 912) main_length), 58213#(<= (+ main_offset 908) main_length), 58214#(<= (+ main_offset 904) main_length), 58215#(<= (+ main_offset 900) main_length), 58216#(<= (+ main_offset 896) main_length), 58217#(<= (+ main_offset 892) main_length), 58218#(<= (+ main_offset 888) main_length), 58219#(<= (+ main_offset 884) main_length), 58220#(<= (+ main_offset 880) main_length), 58221#(<= (+ main_offset 876) main_length), 58222#(<= (+ main_offset 872) main_length), 58223#(<= (+ main_offset 868) main_length), 58224#(<= (+ main_offset 864) main_length), 58225#(<= (+ main_offset 860) main_length), 58226#(<= (+ main_offset 856) main_length), 58227#(<= (+ main_offset 852) main_length), 58228#(<= (+ main_offset 848) main_length), 58229#(<= (+ main_offset 844) main_length), 58230#(<= (+ main_offset 840) main_length), 58231#(<= (+ main_offset 836) main_length), 58232#(<= (+ main_offset 832) main_length), 58233#(<= (+ main_offset 828) main_length), 58234#(<= (+ main_offset 824) main_length), 58235#(<= (+ main_offset 820) main_length), 58236#(<= (+ main_offset 816) main_length), 58237#(<= (+ main_offset 812) main_length), 58238#(<= (+ main_offset 808) main_length), 58239#(<= (+ main_offset 804) main_length), 58240#(<= (+ main_offset 800) main_length), 58241#(<= (+ main_offset 796) main_length), 58242#(<= (+ main_offset 792) main_length), 58243#(<= (+ main_offset 788) main_length), 58244#(<= (+ main_offset 784) main_length), 58245#(<= (+ main_offset 780) main_length), 58246#(<= (+ main_offset 776) main_length), 58247#(<= (+ main_offset 772) main_length), 58248#(<= (+ main_offset 768) main_length), 58249#(<= (+ main_offset 764) main_length), 58250#(<= (+ main_offset 760) main_length), 58251#(<= (+ main_offset 756) main_length), 58252#(<= (+ main_offset 752) main_length), 58253#(<= (+ main_offset 748) main_length), 58254#(<= (+ main_offset 744) main_length), 58255#(<= (+ main_offset 740) main_length), 58256#(<= (+ main_offset 736) main_length), 58257#(<= (+ main_offset 732) main_length), 58258#(<= (+ main_offset 728) main_length), 58259#(<= (+ main_offset 724) main_length), 58260#(<= (+ main_offset 720) main_length), 58261#(<= (+ main_offset 716) main_length), 58262#(<= (+ main_offset 712) main_length), 58263#(<= (+ main_offset 708) main_length), 58264#(<= (+ main_offset 704) main_length), 58265#(<= (+ main_offset 700) main_length), 58266#(<= (+ main_offset 696) main_length), 58267#(<= (+ main_offset 692) main_length), 58268#(<= (+ main_offset 688) main_length), 58269#(<= (+ main_offset 684) main_length), 58270#(<= (+ main_offset 680) main_length), 58271#(<= (+ main_offset 676) main_length), 58272#(<= (+ main_offset 672) main_length), 58273#(<= (+ main_offset 668) main_length), 58274#(<= (+ main_offset 664) main_length), 58275#(<= (+ main_offset 660) main_length), 58276#(<= (+ main_offset 656) main_length), 58277#(<= (+ main_offset 652) main_length), 58278#(<= (+ main_offset 648) main_length), 58279#(<= (+ main_offset 644) main_length), 58280#(<= (+ main_offset 640) main_length), 58281#(<= (+ main_offset 636) main_length), 58282#(<= (+ main_offset 632) main_length), 58283#(<= (+ main_offset 628) main_length), 58284#(<= (+ main_offset 624) main_length), 58285#(<= (+ main_offset 620) main_length), 58286#(<= (+ main_offset 616) main_length), 58287#(<= (+ main_offset 612) main_length), 58288#(<= (+ main_offset 608) main_length), 58289#(<= (+ main_offset 604) main_length)] [2018-07-23 13:52:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 12432 backedges. 0 proven. 12432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:17,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 114 states [2018-07-23 13:52:17,731 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2018-07-23 13:52:17,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:17,731 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand 114 states. [2018-07-23 13:52:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:17,887 INFO L93 Difference]: Finished difference Result 229 states and 229 transitions. [2018-07-23 13:52:17,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2018-07-23 13:52:17,887 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 225 [2018-07-23 13:52:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:17,887 INFO L225 Difference]: With dead ends: 229 [2018-07-23 13:52:17,887 INFO L226 Difference]: Without dead ends: 228 [2018-07-23 13:52:17,888 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2018-07-23 13:52:17,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-07-23 13:52:17,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2018-07-23 13:52:17,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-07-23 13:52:17,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 228 transitions. [2018-07-23 13:52:17,891 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 228 transitions. Word has length 225 [2018-07-23 13:52:17,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:17,892 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 228 transitions. [2018-07-23 13:52:17,892 INFO L472 AbstractCegarLoop]: Interpolant automaton has 114 states. [2018-07-23 13:52:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 228 transitions. [2018-07-23 13:52:17,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-07-23 13:52:17,892 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:17,893 INFO L357 BasicCegarLoop]: trace histogram [113, 112, 1, 1] [2018-07-23 13:52:17,893 INFO L414 AbstractCegarLoop]: === Iteration 113 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:17,893 INFO L82 PathProgramCache]: Analyzing trace with hash -91394624, now seen corresponding path program 112 times [2018-07-23 13:52:17,893 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:18,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12656 backedges. 0 proven. 12656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,370 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:18,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2018-07-23 13:52:18,371 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:18,371 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 13:52:18,371 INFO L185 omatonBuilderFactory]: Interpolants [59204#true, 59205#false, 59206#(<= (+ main_offset 1048) main_length), 59207#(<= (+ main_offset 1044) main_length), 59208#(<= (+ main_offset 1040) main_length), 59209#(<= (+ main_offset 1036) main_length), 59210#(<= (+ main_offset 1032) main_length), 59211#(<= (+ main_offset 1028) main_length), 59212#(<= (+ main_offset 1024) main_length), 59213#(<= (+ main_offset 1020) main_length), 59214#(<= (+ main_offset 1016) main_length), 59215#(<= (+ main_offset 1012) main_length), 59216#(<= (+ main_offset 1008) main_length), 59217#(<= (+ main_offset 1004) main_length), 59218#(<= (+ main_offset 1000) main_length), 59219#(<= (+ main_offset 996) main_length), 59220#(<= (+ main_offset 992) main_length), 59221#(<= (+ main_offset 988) main_length), 59222#(<= (+ main_offset 984) main_length), 59223#(<= (+ main_offset 980) main_length), 59224#(<= (+ main_offset 976) main_length), 59225#(<= (+ main_offset 972) main_length), 59226#(<= (+ main_offset 968) main_length), 59227#(<= (+ main_offset 964) main_length), 59228#(<= (+ main_offset 960) main_length), 59229#(<= (+ main_offset 956) main_length), 59230#(<= (+ main_offset 952) main_length), 59231#(<= (+ main_offset 948) main_length), 59232#(<= (+ main_offset 944) main_length), 59233#(<= (+ main_offset 940) main_length), 59234#(<= (+ main_offset 936) main_length), 59235#(<= (+ main_offset 932) main_length), 59236#(<= (+ main_offset 928) main_length), 59237#(<= (+ main_offset 924) main_length), 59238#(<= (+ main_offset 920) main_length), 59239#(<= (+ main_offset 916) main_length), 59240#(<= (+ main_offset 912) main_length), 59241#(<= (+ main_offset 908) main_length), 59242#(<= (+ main_offset 904) main_length), 59243#(<= (+ main_offset 900) main_length), 59244#(<= (+ main_offset 896) main_length), 59245#(<= (+ main_offset 892) main_length), 59246#(<= (+ main_offset 888) main_length), 59247#(<= (+ main_offset 884) main_length), 59248#(<= (+ main_offset 880) main_length), 59249#(<= (+ main_offset 876) main_length), 59250#(<= (+ main_offset 872) main_length), 59251#(<= (+ main_offset 868) main_length), 59252#(<= (+ main_offset 864) main_length), 59253#(<= (+ main_offset 860) main_length), 59254#(<= (+ main_offset 856) main_length), 59255#(<= (+ main_offset 852) main_length), 59256#(<= (+ main_offset 848) main_length), 59257#(<= (+ main_offset 844) main_length), 59258#(<= (+ main_offset 840) main_length), 59259#(<= (+ main_offset 836) main_length), 59260#(<= (+ main_offset 832) main_length), 59261#(<= (+ main_offset 828) main_length), 59262#(<= (+ main_offset 824) main_length), 59263#(<= (+ main_offset 820) main_length), 59264#(<= (+ main_offset 816) main_length), 59265#(<= (+ main_offset 812) main_length), 59266#(<= (+ main_offset 808) main_length), 59267#(<= (+ main_offset 804) main_length), 59268#(<= (+ main_offset 800) main_length), 59269#(<= (+ main_offset 796) main_length), 59270#(<= (+ main_offset 792) main_length), 59271#(<= (+ main_offset 788) main_length), 59272#(<= (+ main_offset 784) main_length), 59273#(<= (+ main_offset 780) main_length), 59274#(<= (+ main_offset 776) main_length), 59275#(<= (+ main_offset 772) main_length), 59276#(<= (+ main_offset 768) main_length), 59277#(<= (+ main_offset 764) main_length), 59278#(<= (+ main_offset 760) main_length), 59279#(<= (+ main_offset 756) main_length), 59280#(<= (+ main_offset 752) main_length), 59281#(<= (+ main_offset 748) main_length), 59282#(<= (+ main_offset 744) main_length), 59283#(<= (+ main_offset 740) main_length), 59284#(<= (+ main_offset 736) main_length), 59285#(<= (+ main_offset 732) main_length), 59286#(<= (+ main_offset 728) main_length), 59287#(<= (+ main_offset 724) main_length), 59288#(<= (+ main_offset 720) main_length), 59289#(<= (+ main_offset 716) main_length), 59290#(<= (+ main_offset 712) main_length), 59291#(<= (+ main_offset 708) main_length), 59292#(<= (+ main_offset 704) main_length), 59293#(<= (+ main_offset 700) main_length), 59294#(<= (+ main_offset 696) main_length), 59295#(<= (+ main_offset 692) main_length), 59296#(<= (+ main_offset 688) main_length), 59297#(<= (+ main_offset 684) main_length), 59298#(<= (+ main_offset 680) main_length), 59299#(<= (+ main_offset 676) main_length), 59300#(<= (+ main_offset 672) main_length), 59301#(<= (+ main_offset 668) main_length), 59302#(<= (+ main_offset 664) main_length), 59303#(<= (+ main_offset 660) main_length), 59304#(<= (+ main_offset 656) main_length), 59305#(<= (+ main_offset 652) main_length), 59306#(<= (+ main_offset 648) main_length), 59307#(<= (+ main_offset 644) main_length), 59308#(<= (+ main_offset 640) main_length), 59309#(<= (+ main_offset 636) main_length), 59310#(<= (+ main_offset 632) main_length), 59311#(<= (+ main_offset 628) main_length), 59312#(<= (+ main_offset 624) main_length), 59313#(<= (+ main_offset 620) main_length), 59314#(<= (+ main_offset 616) main_length), 59315#(<= (+ main_offset 612) main_length), 59316#(<= (+ main_offset 608) main_length), 59317#(<= (+ main_offset 604) main_length), 59318#(<= (+ main_offset 600) main_length)] [2018-07-23 13:52:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12656 backedges. 0 proven. 12656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:18,372 INFO L450 AbstractCegarLoop]: Interpolant automaton has 115 states [2018-07-23 13:52:18,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2018-07-23 13:52:18,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:18,373 INFO L87 Difference]: Start difference. First operand 228 states and 228 transitions. Second operand 115 states. [2018-07-23 13:52:18,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:18,549 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2018-07-23 13:52:18,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-23 13:52:18,550 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 227 [2018-07-23 13:52:18,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:18,550 INFO L225 Difference]: With dead ends: 231 [2018-07-23 13:52:18,550 INFO L226 Difference]: Without dead ends: 230 [2018-07-23 13:52:18,551 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2018-07-23 13:52:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-07-23 13:52:18,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2018-07-23 13:52:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2018-07-23 13:52:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2018-07-23 13:52:18,556 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 227 [2018-07-23 13:52:18,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:18,556 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2018-07-23 13:52:18,556 INFO L472 AbstractCegarLoop]: Interpolant automaton has 115 states. [2018-07-23 13:52:18,556 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2018-07-23 13:52:18,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-07-23 13:52:18,557 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:18,557 INFO L357 BasicCegarLoop]: trace histogram [114, 113, 1, 1] [2018-07-23 13:52:18,557 INFO L414 AbstractCegarLoop]: === Iteration 114 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:18,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1930886654, now seen corresponding path program 113 times [2018-07-23 13:52:18,558 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 12882 backedges. 0 proven. 12882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,053 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,053 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2018-07-23 13:52:19,053 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,053 INFO L185 omatonBuilderFactory]: Interpolants [60241#true, 60242#false, 60243#(<= (+ main_offset 1048) main_length), 60244#(<= (+ main_offset 1044) main_length), 60245#(<= (+ main_offset 1040) main_length), 60246#(<= (+ main_offset 1036) main_length), 60247#(<= (+ main_offset 1032) main_length), 60248#(<= (+ main_offset 1028) main_length), 60249#(<= (+ main_offset 1024) main_length), 60250#(<= (+ main_offset 1020) main_length), 60251#(<= (+ main_offset 1016) main_length), 60252#(<= (+ main_offset 1012) main_length), 60253#(<= (+ main_offset 1008) main_length), 60254#(<= (+ main_offset 1004) main_length), 60255#(<= (+ main_offset 1000) main_length), 60256#(<= (+ main_offset 996) main_length), 60257#(<= (+ main_offset 992) main_length), 60258#(<= (+ main_offset 988) main_length), 60259#(<= (+ main_offset 984) main_length), 60260#(<= (+ main_offset 980) main_length), 60261#(<= (+ main_offset 976) main_length), 60262#(<= (+ main_offset 972) main_length), 60263#(<= (+ main_offset 968) main_length), 60264#(<= (+ main_offset 964) main_length), 60265#(<= (+ main_offset 960) main_length), 60266#(<= (+ main_offset 956) main_length), 60267#(<= (+ main_offset 952) main_length), 60268#(<= (+ main_offset 948) main_length), 60269#(<= (+ main_offset 944) main_length), 60270#(<= (+ main_offset 940) main_length), 60271#(<= (+ main_offset 936) main_length), 60272#(<= (+ main_offset 932) main_length), 60273#(<= (+ main_offset 928) main_length), 60274#(<= (+ main_offset 924) main_length), 60275#(<= (+ main_offset 920) main_length), 60276#(<= (+ main_offset 916) main_length), 60277#(<= (+ main_offset 912) main_length), 60278#(<= (+ main_offset 908) main_length), 60279#(<= (+ main_offset 904) main_length), 60280#(<= (+ main_offset 900) main_length), 60281#(<= (+ main_offset 896) main_length), 60282#(<= (+ main_offset 892) main_length), 60283#(<= (+ main_offset 888) main_length), 60284#(<= (+ main_offset 884) main_length), 60285#(<= (+ main_offset 880) main_length), 60286#(<= (+ main_offset 876) main_length), 60287#(<= (+ main_offset 872) main_length), 60288#(<= (+ main_offset 868) main_length), 60289#(<= (+ main_offset 864) main_length), 60290#(<= (+ main_offset 860) main_length), 60291#(<= (+ main_offset 856) main_length), 60292#(<= (+ main_offset 852) main_length), 60293#(<= (+ main_offset 848) main_length), 60294#(<= (+ main_offset 844) main_length), 60295#(<= (+ main_offset 840) main_length), 60296#(<= (+ main_offset 836) main_length), 60297#(<= (+ main_offset 832) main_length), 60298#(<= (+ main_offset 828) main_length), 60299#(<= (+ main_offset 824) main_length), 60300#(<= (+ main_offset 820) main_length), 60301#(<= (+ main_offset 816) main_length), 60302#(<= (+ main_offset 812) main_length), 60303#(<= (+ main_offset 808) main_length), 60304#(<= (+ main_offset 804) main_length), 60305#(<= (+ main_offset 800) main_length), 60306#(<= (+ main_offset 796) main_length), 60307#(<= (+ main_offset 792) main_length), 60308#(<= (+ main_offset 788) main_length), 60309#(<= (+ main_offset 784) main_length), 60310#(<= (+ main_offset 780) main_length), 60311#(<= (+ main_offset 776) main_length), 60312#(<= (+ main_offset 772) main_length), 60313#(<= (+ main_offset 768) main_length), 60314#(<= (+ main_offset 764) main_length), 60315#(<= (+ main_offset 760) main_length), 60316#(<= (+ main_offset 756) main_length), 60317#(<= (+ main_offset 752) main_length), 60318#(<= (+ main_offset 748) main_length), 60319#(<= (+ main_offset 744) main_length), 60320#(<= (+ main_offset 740) main_length), 60321#(<= (+ main_offset 736) main_length), 60322#(<= (+ main_offset 732) main_length), 60323#(<= (+ main_offset 728) main_length), 60324#(<= (+ main_offset 724) main_length), 60325#(<= (+ main_offset 720) main_length), 60326#(<= (+ main_offset 716) main_length), 60327#(<= (+ main_offset 712) main_length), 60328#(<= (+ main_offset 708) main_length), 60329#(<= (+ main_offset 704) main_length), 60330#(<= (+ main_offset 700) main_length), 60331#(<= (+ main_offset 696) main_length), 60332#(<= (+ main_offset 692) main_length), 60333#(<= (+ main_offset 688) main_length), 60334#(<= (+ main_offset 684) main_length), 60335#(<= (+ main_offset 680) main_length), 60336#(<= (+ main_offset 676) main_length), 60337#(<= (+ main_offset 672) main_length), 60338#(<= (+ main_offset 668) main_length), 60339#(<= (+ main_offset 664) main_length), 60340#(<= (+ main_offset 660) main_length), 60341#(<= (+ main_offset 656) main_length), 60342#(<= (+ main_offset 652) main_length), 60343#(<= (+ main_offset 648) main_length), 60344#(<= (+ main_offset 644) main_length), 60345#(<= (+ main_offset 640) main_length), 60346#(<= (+ main_offset 636) main_length), 60347#(<= (+ main_offset 632) main_length), 60348#(<= (+ main_offset 628) main_length), 60349#(<= (+ main_offset 624) main_length), 60350#(<= (+ main_offset 620) main_length), 60351#(<= (+ main_offset 616) main_length), 60352#(<= (+ main_offset 612) main_length), 60353#(<= (+ main_offset 608) main_length), 60354#(<= (+ main_offset 604) main_length), 60355#(<= (+ main_offset 600) main_length), 60356#(<= (+ main_offset 596) main_length)] [2018-07-23 13:52:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 12882 backedges. 0 proven. 12882 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,054 INFO L450 AbstractCegarLoop]: Interpolant automaton has 116 states [2018-07-23 13:52:19,055 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2018-07-23 13:52:19,055 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:19,055 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 116 states. [2018-07-23 13:52:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:19,235 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2018-07-23 13:52:19,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2018-07-23 13:52:19,235 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 229 [2018-07-23 13:52:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:19,236 INFO L225 Difference]: With dead ends: 233 [2018-07-23 13:52:19,236 INFO L226 Difference]: Without dead ends: 232 [2018-07-23 13:52:19,237 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2018-07-23 13:52:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-07-23 13:52:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2018-07-23 13:52:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-07-23 13:52:19,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2018-07-23 13:52:19,242 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 229 [2018-07-23 13:52:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:19,242 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2018-07-23 13:52:19,242 INFO L472 AbstractCegarLoop]: Interpolant automaton has 116 states. [2018-07-23 13:52:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2018-07-23 13:52:19,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2018-07-23 13:52:19,244 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:19,244 INFO L357 BasicCegarLoop]: trace histogram [115, 114, 1, 1] [2018-07-23 13:52:19,244 INFO L414 AbstractCegarLoop]: === Iteration 115 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:19,244 INFO L82 PathProgramCache]: Analyzing trace with hash -156201532, now seen corresponding path program 114 times [2018-07-23 13:52:19,244 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13110 backedges. 0 proven. 13110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,752 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:19,752 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2018-07-23 13:52:19,752 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:19,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,752 INFO L185 omatonBuilderFactory]: Interpolants [61287#true, 61288#false, 61289#(<= (+ main_offset 1048) main_length), 61290#(<= (+ main_offset 1044) main_length), 61291#(<= (+ main_offset 1040) main_length), 61292#(<= (+ main_offset 1036) main_length), 61293#(<= (+ main_offset 1032) main_length), 61294#(<= (+ main_offset 1028) main_length), 61295#(<= (+ main_offset 1024) main_length), 61296#(<= (+ main_offset 1020) main_length), 61297#(<= (+ main_offset 1016) main_length), 61298#(<= (+ main_offset 1012) main_length), 61299#(<= (+ main_offset 1008) main_length), 61300#(<= (+ main_offset 1004) main_length), 61301#(<= (+ main_offset 1000) main_length), 61302#(<= (+ main_offset 996) main_length), 61303#(<= (+ main_offset 992) main_length), 61304#(<= (+ main_offset 988) main_length), 61305#(<= (+ main_offset 984) main_length), 61306#(<= (+ main_offset 980) main_length), 61307#(<= (+ main_offset 976) main_length), 61308#(<= (+ main_offset 972) main_length), 61309#(<= (+ main_offset 968) main_length), 61310#(<= (+ main_offset 964) main_length), 61311#(<= (+ main_offset 960) main_length), 61312#(<= (+ main_offset 956) main_length), 61313#(<= (+ main_offset 952) main_length), 61314#(<= (+ main_offset 948) main_length), 61315#(<= (+ main_offset 944) main_length), 61316#(<= (+ main_offset 940) main_length), 61317#(<= (+ main_offset 936) main_length), 61318#(<= (+ main_offset 932) main_length), 61319#(<= (+ main_offset 928) main_length), 61320#(<= (+ main_offset 924) main_length), 61321#(<= (+ main_offset 920) main_length), 61322#(<= (+ main_offset 916) main_length), 61323#(<= (+ main_offset 912) main_length), 61324#(<= (+ main_offset 908) main_length), 61325#(<= (+ main_offset 904) main_length), 61326#(<= (+ main_offset 900) main_length), 61327#(<= (+ main_offset 896) main_length), 61328#(<= (+ main_offset 892) main_length), 61329#(<= (+ main_offset 888) main_length), 61330#(<= (+ main_offset 884) main_length), 61331#(<= (+ main_offset 880) main_length), 61332#(<= (+ main_offset 876) main_length), 61333#(<= (+ main_offset 872) main_length), 61334#(<= (+ main_offset 868) main_length), 61335#(<= (+ main_offset 864) main_length), 61336#(<= (+ main_offset 860) main_length), 61337#(<= (+ main_offset 856) main_length), 61338#(<= (+ main_offset 852) main_length), 61339#(<= (+ main_offset 848) main_length), 61340#(<= (+ main_offset 844) main_length), 61341#(<= (+ main_offset 840) main_length), 61342#(<= (+ main_offset 836) main_length), 61343#(<= (+ main_offset 832) main_length), 61344#(<= (+ main_offset 828) main_length), 61345#(<= (+ main_offset 824) main_length), 61346#(<= (+ main_offset 820) main_length), 61347#(<= (+ main_offset 816) main_length), 61348#(<= (+ main_offset 812) main_length), 61349#(<= (+ main_offset 808) main_length), 61350#(<= (+ main_offset 804) main_length), 61351#(<= (+ main_offset 800) main_length), 61352#(<= (+ main_offset 796) main_length), 61353#(<= (+ main_offset 792) main_length), 61354#(<= (+ main_offset 788) main_length), 61355#(<= (+ main_offset 784) main_length), 61356#(<= (+ main_offset 780) main_length), 61357#(<= (+ main_offset 776) main_length), 61358#(<= (+ main_offset 772) main_length), 61359#(<= (+ main_offset 768) main_length), 61360#(<= (+ main_offset 764) main_length), 61361#(<= (+ main_offset 760) main_length), 61362#(<= (+ main_offset 756) main_length), 61363#(<= (+ main_offset 752) main_length), 61364#(<= (+ main_offset 748) main_length), 61365#(<= (+ main_offset 744) main_length), 61366#(<= (+ main_offset 740) main_length), 61367#(<= (+ main_offset 736) main_length), 61368#(<= (+ main_offset 732) main_length), 61369#(<= (+ main_offset 728) main_length), 61370#(<= (+ main_offset 724) main_length), 61371#(<= (+ main_offset 720) main_length), 61372#(<= (+ main_offset 716) main_length), 61373#(<= (+ main_offset 712) main_length), 61374#(<= (+ main_offset 708) main_length), 61375#(<= (+ main_offset 704) main_length), 61376#(<= (+ main_offset 700) main_length), 61377#(<= (+ main_offset 696) main_length), 61378#(<= (+ main_offset 692) main_length), 61379#(<= (+ main_offset 688) main_length), 61380#(<= (+ main_offset 684) main_length), 61381#(<= (+ main_offset 680) main_length), 61382#(<= (+ main_offset 676) main_length), 61383#(<= (+ main_offset 672) main_length), 61384#(<= (+ main_offset 668) main_length), 61385#(<= (+ main_offset 664) main_length), 61386#(<= (+ main_offset 660) main_length), 61387#(<= (+ main_offset 656) main_length), 61388#(<= (+ main_offset 652) main_length), 61389#(<= (+ main_offset 648) main_length), 61390#(<= (+ main_offset 644) main_length), 61391#(<= (+ main_offset 640) main_length), 61392#(<= (+ main_offset 636) main_length), 61393#(<= (+ main_offset 632) main_length), 61394#(<= (+ main_offset 628) main_length), 61395#(<= (+ main_offset 624) main_length), 61396#(<= (+ main_offset 620) main_length), 61397#(<= (+ main_offset 616) main_length), 61398#(<= (+ main_offset 612) main_length), 61399#(<= (+ main_offset 608) main_length), 61400#(<= (+ main_offset 604) main_length), 61401#(<= (+ main_offset 600) main_length), 61402#(<= (+ main_offset 596) main_length), 61403#(<= (+ main_offset 592) main_length)] [2018-07-23 13:52:19,753 INFO L134 CoverageAnalysis]: Checked inductivity of 13110 backedges. 0 proven. 13110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:19,757 INFO L450 AbstractCegarLoop]: Interpolant automaton has 117 states [2018-07-23 13:52:19,759 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2018-07-23 13:52:19,760 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:19,760 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand 117 states. [2018-07-23 13:52:19,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:19,979 INFO L93 Difference]: Finished difference Result 235 states and 235 transitions. [2018-07-23 13:52:19,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2018-07-23 13:52:19,979 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 231 [2018-07-23 13:52:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:19,980 INFO L225 Difference]: With dead ends: 235 [2018-07-23 13:52:19,980 INFO L226 Difference]: Without dead ends: 234 [2018-07-23 13:52:19,981 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2018-07-23 13:52:19,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-07-23 13:52:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2018-07-23 13:52:19,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-07-23 13:52:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2018-07-23 13:52:19,984 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 231 [2018-07-23 13:52:19,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:19,985 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2018-07-23 13:52:19,985 INFO L472 AbstractCegarLoop]: Interpolant automaton has 117 states. [2018-07-23 13:52:19,985 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2018-07-23 13:52:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-23 13:52:19,985 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:19,985 INFO L357 BasicCegarLoop]: trace histogram [116, 115, 1, 1] [2018-07-23 13:52:19,986 INFO L414 AbstractCegarLoop]: === Iteration 116 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:19,986 INFO L82 PathProgramCache]: Analyzing trace with hash 214184198, now seen corresponding path program 115 times [2018-07-23 13:52:19,986 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 13340 backedges. 0 proven. 13340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,544 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:20,544 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2018-07-23 13:52:20,544 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,545 INFO L185 omatonBuilderFactory]: Interpolants [62342#true, 62343#false, 62344#(<= (+ main_offset 1048) main_length), 62345#(<= (+ main_offset 1044) main_length), 62346#(<= (+ main_offset 1040) main_length), 62347#(<= (+ main_offset 1036) main_length), 62348#(<= (+ main_offset 1032) main_length), 62349#(<= (+ main_offset 1028) main_length), 62350#(<= (+ main_offset 1024) main_length), 62351#(<= (+ main_offset 1020) main_length), 62352#(<= (+ main_offset 1016) main_length), 62353#(<= (+ main_offset 1012) main_length), 62354#(<= (+ main_offset 1008) main_length), 62355#(<= (+ main_offset 1004) main_length), 62356#(<= (+ main_offset 1000) main_length), 62357#(<= (+ main_offset 996) main_length), 62358#(<= (+ main_offset 992) main_length), 62359#(<= (+ main_offset 988) main_length), 62360#(<= (+ main_offset 984) main_length), 62361#(<= (+ main_offset 980) main_length), 62362#(<= (+ main_offset 976) main_length), 62363#(<= (+ main_offset 972) main_length), 62364#(<= (+ main_offset 968) main_length), 62365#(<= (+ main_offset 964) main_length), 62366#(<= (+ main_offset 960) main_length), 62367#(<= (+ main_offset 956) main_length), 62368#(<= (+ main_offset 952) main_length), 62369#(<= (+ main_offset 948) main_length), 62370#(<= (+ main_offset 944) main_length), 62371#(<= (+ main_offset 940) main_length), 62372#(<= (+ main_offset 936) main_length), 62373#(<= (+ main_offset 932) main_length), 62374#(<= (+ main_offset 928) main_length), 62375#(<= (+ main_offset 924) main_length), 62376#(<= (+ main_offset 920) main_length), 62377#(<= (+ main_offset 916) main_length), 62378#(<= (+ main_offset 912) main_length), 62379#(<= (+ main_offset 908) main_length), 62380#(<= (+ main_offset 904) main_length), 62381#(<= (+ main_offset 900) main_length), 62382#(<= (+ main_offset 896) main_length), 62383#(<= (+ main_offset 892) main_length), 62384#(<= (+ main_offset 888) main_length), 62385#(<= (+ main_offset 884) main_length), 62386#(<= (+ main_offset 880) main_length), 62387#(<= (+ main_offset 876) main_length), 62388#(<= (+ main_offset 872) main_length), 62389#(<= (+ main_offset 868) main_length), 62390#(<= (+ main_offset 864) main_length), 62391#(<= (+ main_offset 860) main_length), 62392#(<= (+ main_offset 856) main_length), 62393#(<= (+ main_offset 852) main_length), 62394#(<= (+ main_offset 848) main_length), 62395#(<= (+ main_offset 844) main_length), 62396#(<= (+ main_offset 840) main_length), 62397#(<= (+ main_offset 836) main_length), 62398#(<= (+ main_offset 832) main_length), 62399#(<= (+ main_offset 828) main_length), 62400#(<= (+ main_offset 824) main_length), 62401#(<= (+ main_offset 820) main_length), 62402#(<= (+ main_offset 816) main_length), 62403#(<= (+ main_offset 812) main_length), 62404#(<= (+ main_offset 808) main_length), 62405#(<= (+ main_offset 804) main_length), 62406#(<= (+ main_offset 800) main_length), 62407#(<= (+ main_offset 796) main_length), 62408#(<= (+ main_offset 792) main_length), 62409#(<= (+ main_offset 788) main_length), 62410#(<= (+ main_offset 784) main_length), 62411#(<= (+ main_offset 780) main_length), 62412#(<= (+ main_offset 776) main_length), 62413#(<= (+ main_offset 772) main_length), 62414#(<= (+ main_offset 768) main_length), 62415#(<= (+ main_offset 764) main_length), 62416#(<= (+ main_offset 760) main_length), 62417#(<= (+ main_offset 756) main_length), 62418#(<= (+ main_offset 752) main_length), 62419#(<= (+ main_offset 748) main_length), 62420#(<= (+ main_offset 744) main_length), 62421#(<= (+ main_offset 740) main_length), 62422#(<= (+ main_offset 736) main_length), 62423#(<= (+ main_offset 732) main_length), 62424#(<= (+ main_offset 728) main_length), 62425#(<= (+ main_offset 724) main_length), 62426#(<= (+ main_offset 720) main_length), 62427#(<= (+ main_offset 716) main_length), 62428#(<= (+ main_offset 712) main_length), 62429#(<= (+ main_offset 708) main_length), 62430#(<= (+ main_offset 704) main_length), 62431#(<= (+ main_offset 700) main_length), 62432#(<= (+ main_offset 696) main_length), 62433#(<= (+ main_offset 692) main_length), 62434#(<= (+ main_offset 688) main_length), 62435#(<= (+ main_offset 684) main_length), 62436#(<= (+ main_offset 680) main_length), 62437#(<= (+ main_offset 676) main_length), 62438#(<= (+ main_offset 672) main_length), 62439#(<= (+ main_offset 668) main_length), 62440#(<= (+ main_offset 664) main_length), 62441#(<= (+ main_offset 660) main_length), 62442#(<= (+ main_offset 656) main_length), 62443#(<= (+ main_offset 652) main_length), 62444#(<= (+ main_offset 648) main_length), 62445#(<= (+ main_offset 644) main_length), 62446#(<= (+ main_offset 640) main_length), 62447#(<= (+ main_offset 636) main_length), 62448#(<= (+ main_offset 632) main_length), 62449#(<= (+ main_offset 628) main_length), 62450#(<= (+ main_offset 624) main_length), 62451#(<= (+ main_offset 620) main_length), 62452#(<= (+ main_offset 616) main_length), 62453#(<= (+ main_offset 612) main_length), 62454#(<= (+ main_offset 608) main_length), 62455#(<= (+ main_offset 604) main_length), 62456#(<= (+ main_offset 600) main_length), 62457#(<= (+ main_offset 596) main_length), 62458#(<= (+ main_offset 592) main_length), 62459#(<= (+ main_offset 588) main_length)] [2018-07-23 13:52:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 13340 backedges. 0 proven. 13340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:20,546 INFO L450 AbstractCegarLoop]: Interpolant automaton has 118 states [2018-07-23 13:52:20,547 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2018-07-23 13:52:20,547 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:20,548 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand 118 states. [2018-07-23 13:52:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:20,805 INFO L93 Difference]: Finished difference Result 237 states and 237 transitions. [2018-07-23 13:52:20,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-07-23 13:52:20,805 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 233 [2018-07-23 13:52:20,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:20,806 INFO L225 Difference]: With dead ends: 237 [2018-07-23 13:52:20,806 INFO L226 Difference]: Without dead ends: 236 [2018-07-23 13:52:20,807 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2018-07-23 13:52:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-07-23 13:52:20,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2018-07-23 13:52:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-07-23 13:52:20,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2018-07-23 13:52:20,810 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 233 [2018-07-23 13:52:20,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:20,811 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2018-07-23 13:52:20,811 INFO L472 AbstractCegarLoop]: Interpolant automaton has 118 states. [2018-07-23 13:52:20,811 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2018-07-23 13:52:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-07-23 13:52:20,812 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:20,812 INFO L357 BasicCegarLoop]: trace histogram [117, 116, 1, 1] [2018-07-23 13:52:20,812 INFO L414 AbstractCegarLoop]: === Iteration 117 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:20,812 INFO L82 PathProgramCache]: Analyzing trace with hash -327414840, now seen corresponding path program 116 times [2018-07-23 13:52:20,812 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 13572 backedges. 0 proven. 13572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,296 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:21,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2018-07-23 13:52:21,296 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:21,297 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 13:52:21,297 INFO L185 omatonBuilderFactory]: Interpolants [63488#(<= (+ main_offset 728) main_length), 63489#(<= (+ main_offset 724) main_length), 63490#(<= (+ main_offset 720) main_length), 63491#(<= (+ main_offset 716) main_length), 63492#(<= (+ main_offset 712) main_length), 63493#(<= (+ main_offset 708) main_length), 63494#(<= (+ main_offset 704) main_length), 63495#(<= (+ main_offset 700) main_length), 63496#(<= (+ main_offset 696) main_length), 63497#(<= (+ main_offset 692) main_length), 63498#(<= (+ main_offset 688) main_length), 63499#(<= (+ main_offset 684) main_length), 63500#(<= (+ main_offset 680) main_length), 63501#(<= (+ main_offset 676) main_length), 63502#(<= (+ main_offset 672) main_length), 63503#(<= (+ main_offset 668) main_length), 63504#(<= (+ main_offset 664) main_length), 63505#(<= (+ main_offset 660) main_length), 63506#(<= (+ main_offset 656) main_length), 63507#(<= (+ main_offset 652) main_length), 63508#(<= (+ main_offset 648) main_length), 63509#(<= (+ main_offset 644) main_length), 63510#(<= (+ main_offset 640) main_length), 63511#(<= (+ main_offset 636) main_length), 63512#(<= (+ main_offset 632) main_length), 63513#(<= (+ main_offset 628) main_length), 63514#(<= (+ main_offset 624) main_length), 63515#(<= (+ main_offset 620) main_length), 63516#(<= (+ main_offset 616) main_length), 63517#(<= (+ main_offset 612) main_length), 63518#(<= (+ main_offset 608) main_length), 63519#(<= (+ main_offset 604) main_length), 63520#(<= (+ main_offset 600) main_length), 63521#(<= (+ main_offset 596) main_length), 63522#(<= (+ main_offset 592) main_length), 63523#(<= (+ main_offset 588) main_length), 63524#(<= (+ main_offset 584) main_length), 63406#true, 63407#false, 63408#(<= (+ main_offset 1048) main_length), 63409#(<= (+ main_offset 1044) main_length), 63410#(<= (+ main_offset 1040) main_length), 63411#(<= (+ main_offset 1036) main_length), 63412#(<= (+ main_offset 1032) main_length), 63413#(<= (+ main_offset 1028) main_length), 63414#(<= (+ main_offset 1024) main_length), 63415#(<= (+ main_offset 1020) main_length), 63416#(<= (+ main_offset 1016) main_length), 63417#(<= (+ main_offset 1012) main_length), 63418#(<= (+ main_offset 1008) main_length), 63419#(<= (+ main_offset 1004) main_length), 63420#(<= (+ main_offset 1000) main_length), 63421#(<= (+ main_offset 996) main_length), 63422#(<= (+ main_offset 992) main_length), 63423#(<= (+ main_offset 988) main_length), 63424#(<= (+ main_offset 984) main_length), 63425#(<= (+ main_offset 980) main_length), 63426#(<= (+ main_offset 976) main_length), 63427#(<= (+ main_offset 972) main_length), 63428#(<= (+ main_offset 968) main_length), 63429#(<= (+ main_offset 964) main_length), 63430#(<= (+ main_offset 960) main_length), 63431#(<= (+ main_offset 956) main_length), 63432#(<= (+ main_offset 952) main_length), 63433#(<= (+ main_offset 948) main_length), 63434#(<= (+ main_offset 944) main_length), 63435#(<= (+ main_offset 940) main_length), 63436#(<= (+ main_offset 936) main_length), 63437#(<= (+ main_offset 932) main_length), 63438#(<= (+ main_offset 928) main_length), 63439#(<= (+ main_offset 924) main_length), 63440#(<= (+ main_offset 920) main_length), 63441#(<= (+ main_offset 916) main_length), 63442#(<= (+ main_offset 912) main_length), 63443#(<= (+ main_offset 908) main_length), 63444#(<= (+ main_offset 904) main_length), 63445#(<= (+ main_offset 900) main_length), 63446#(<= (+ main_offset 896) main_length), 63447#(<= (+ main_offset 892) main_length), 63448#(<= (+ main_offset 888) main_length), 63449#(<= (+ main_offset 884) main_length), 63450#(<= (+ main_offset 880) main_length), 63451#(<= (+ main_offset 876) main_length), 63452#(<= (+ main_offset 872) main_length), 63453#(<= (+ main_offset 868) main_length), 63454#(<= (+ main_offset 864) main_length), 63455#(<= (+ main_offset 860) main_length), 63456#(<= (+ main_offset 856) main_length), 63457#(<= (+ main_offset 852) main_length), 63458#(<= (+ main_offset 848) main_length), 63459#(<= (+ main_offset 844) main_length), 63460#(<= (+ main_offset 840) main_length), 63461#(<= (+ main_offset 836) main_length), 63462#(<= (+ main_offset 832) main_length), 63463#(<= (+ main_offset 828) main_length), 63464#(<= (+ main_offset 824) main_length), 63465#(<= (+ main_offset 820) main_length), 63466#(<= (+ main_offset 816) main_length), 63467#(<= (+ main_offset 812) main_length), 63468#(<= (+ main_offset 808) main_length), 63469#(<= (+ main_offset 804) main_length), 63470#(<= (+ main_offset 800) main_length), 63471#(<= (+ main_offset 796) main_length), 63472#(<= (+ main_offset 792) main_length), 63473#(<= (+ main_offset 788) main_length), 63474#(<= (+ main_offset 784) main_length), 63475#(<= (+ main_offset 780) main_length), 63476#(<= (+ main_offset 776) main_length), 63477#(<= (+ main_offset 772) main_length), 63478#(<= (+ main_offset 768) main_length), 63479#(<= (+ main_offset 764) main_length), 63480#(<= (+ main_offset 760) main_length), 63481#(<= (+ main_offset 756) main_length), 63482#(<= (+ main_offset 752) main_length), 63483#(<= (+ main_offset 748) main_length), 63484#(<= (+ main_offset 744) main_length), 63485#(<= (+ main_offset 740) main_length), 63486#(<= (+ main_offset 736) main_length), 63487#(<= (+ main_offset 732) main_length)] [2018-07-23 13:52:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 13572 backedges. 0 proven. 13572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:21,298 INFO L450 AbstractCegarLoop]: Interpolant automaton has 119 states [2018-07-23 13:52:21,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2018-07-23 13:52:21,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:21,299 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand 119 states. [2018-07-23 13:52:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:21,421 INFO L93 Difference]: Finished difference Result 239 states and 239 transitions. [2018-07-23 13:52:21,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-07-23 13:52:21,421 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 235 [2018-07-23 13:52:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:21,422 INFO L225 Difference]: With dead ends: 239 [2018-07-23 13:52:21,422 INFO L226 Difference]: Without dead ends: 238 [2018-07-23 13:52:21,423 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2018-07-23 13:52:21,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2018-07-23 13:52:21,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2018-07-23 13:52:21,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-07-23 13:52:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 238 transitions. [2018-07-23 13:52:21,427 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 238 transitions. Word has length 235 [2018-07-23 13:52:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:21,427 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 238 transitions. [2018-07-23 13:52:21,427 INFO L472 AbstractCegarLoop]: Interpolant automaton has 119 states. [2018-07-23 13:52:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 238 transitions. [2018-07-23 13:52:21,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-07-23 13:52:21,428 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:21,428 INFO L357 BasicCegarLoop]: trace histogram [118, 117, 1, 1] [2018-07-23 13:52:21,428 INFO L414 AbstractCegarLoop]: === Iteration 118 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:21,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1113047542, now seen corresponding path program 117 times [2018-07-23 13:52:21,429 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,048 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 13806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,049 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,049 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2018-07-23 13:52:22,049 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,050 INFO L185 omatonBuilderFactory]: Interpolants [64512#(<= (+ main_offset 924) main_length), 64513#(<= (+ main_offset 920) main_length), 64514#(<= (+ main_offset 916) main_length), 64515#(<= (+ main_offset 912) main_length), 64516#(<= (+ main_offset 908) main_length), 64517#(<= (+ main_offset 904) main_length), 64518#(<= (+ main_offset 900) main_length), 64519#(<= (+ main_offset 896) main_length), 64520#(<= (+ main_offset 892) main_length), 64521#(<= (+ main_offset 888) main_length), 64522#(<= (+ main_offset 884) main_length), 64523#(<= (+ main_offset 880) main_length), 64524#(<= (+ main_offset 876) main_length), 64525#(<= (+ main_offset 872) main_length), 64526#(<= (+ main_offset 868) main_length), 64527#(<= (+ main_offset 864) main_length), 64528#(<= (+ main_offset 860) main_length), 64529#(<= (+ main_offset 856) main_length), 64530#(<= (+ main_offset 852) main_length), 64531#(<= (+ main_offset 848) main_length), 64532#(<= (+ main_offset 844) main_length), 64533#(<= (+ main_offset 840) main_length), 64534#(<= (+ main_offset 836) main_length), 64535#(<= (+ main_offset 832) main_length), 64536#(<= (+ main_offset 828) main_length), 64537#(<= (+ main_offset 824) main_length), 64538#(<= (+ main_offset 820) main_length), 64539#(<= (+ main_offset 816) main_length), 64540#(<= (+ main_offset 812) main_length), 64541#(<= (+ main_offset 808) main_length), 64542#(<= (+ main_offset 804) main_length), 64543#(<= (+ main_offset 800) main_length), 64544#(<= (+ main_offset 796) main_length), 64545#(<= (+ main_offset 792) main_length), 64546#(<= (+ main_offset 788) main_length), 64547#(<= (+ main_offset 784) main_length), 64548#(<= (+ main_offset 780) main_length), 64549#(<= (+ main_offset 776) main_length), 64550#(<= (+ main_offset 772) main_length), 64551#(<= (+ main_offset 768) main_length), 64552#(<= (+ main_offset 764) main_length), 64553#(<= (+ main_offset 760) main_length), 64554#(<= (+ main_offset 756) main_length), 64555#(<= (+ main_offset 752) main_length), 64556#(<= (+ main_offset 748) main_length), 64557#(<= (+ main_offset 744) main_length), 64558#(<= (+ main_offset 740) main_length), 64559#(<= (+ main_offset 736) main_length), 64560#(<= (+ main_offset 732) main_length), 64561#(<= (+ main_offset 728) main_length), 64562#(<= (+ main_offset 724) main_length), 64563#(<= (+ main_offset 720) main_length), 64564#(<= (+ main_offset 716) main_length), 64565#(<= (+ main_offset 712) main_length), 64566#(<= (+ main_offset 708) main_length), 64567#(<= (+ main_offset 704) main_length), 64568#(<= (+ main_offset 700) main_length), 64569#(<= (+ main_offset 696) main_length), 64570#(<= (+ main_offset 692) main_length), 64571#(<= (+ main_offset 688) main_length), 64572#(<= (+ main_offset 684) main_length), 64573#(<= (+ main_offset 680) main_length), 64574#(<= (+ main_offset 676) main_length), 64575#(<= (+ main_offset 672) main_length), 64576#(<= (+ main_offset 668) main_length), 64577#(<= (+ main_offset 664) main_length), 64578#(<= (+ main_offset 660) main_length), 64579#(<= (+ main_offset 656) main_length), 64580#(<= (+ main_offset 652) main_length), 64581#(<= (+ main_offset 648) main_length), 64582#(<= (+ main_offset 644) main_length), 64583#(<= (+ main_offset 640) main_length), 64584#(<= (+ main_offset 636) main_length), 64585#(<= (+ main_offset 632) main_length), 64586#(<= (+ main_offset 628) main_length), 64587#(<= (+ main_offset 624) main_length), 64588#(<= (+ main_offset 620) main_length), 64589#(<= (+ main_offset 616) main_length), 64590#(<= (+ main_offset 612) main_length), 64591#(<= (+ main_offset 608) main_length), 64592#(<= (+ main_offset 604) main_length), 64593#(<= (+ main_offset 600) main_length), 64594#(<= (+ main_offset 596) main_length), 64595#(<= (+ main_offset 592) main_length), 64596#(<= (+ main_offset 588) main_length), 64597#(<= (+ main_offset 584) main_length), 64598#(<= (+ main_offset 580) main_length), 64479#true, 64480#false, 64481#(<= (+ main_offset 1048) main_length), 64482#(<= (+ main_offset 1044) main_length), 64483#(<= (+ main_offset 1040) main_length), 64484#(<= (+ main_offset 1036) main_length), 64485#(<= (+ main_offset 1032) main_length), 64486#(<= (+ main_offset 1028) main_length), 64487#(<= (+ main_offset 1024) main_length), 64488#(<= (+ main_offset 1020) main_length), 64489#(<= (+ main_offset 1016) main_length), 64490#(<= (+ main_offset 1012) main_length), 64491#(<= (+ main_offset 1008) main_length), 64492#(<= (+ main_offset 1004) main_length), 64493#(<= (+ main_offset 1000) main_length), 64494#(<= (+ main_offset 996) main_length), 64495#(<= (+ main_offset 992) main_length), 64496#(<= (+ main_offset 988) main_length), 64497#(<= (+ main_offset 984) main_length), 64498#(<= (+ main_offset 980) main_length), 64499#(<= (+ main_offset 976) main_length), 64500#(<= (+ main_offset 972) main_length), 64501#(<= (+ main_offset 968) main_length), 64502#(<= (+ main_offset 964) main_length), 64503#(<= (+ main_offset 960) main_length), 64504#(<= (+ main_offset 956) main_length), 64505#(<= (+ main_offset 952) main_length), 64506#(<= (+ main_offset 948) main_length), 64507#(<= (+ main_offset 944) main_length), 64508#(<= (+ main_offset 940) main_length), 64509#(<= (+ main_offset 936) main_length), 64510#(<= (+ main_offset 932) main_length), 64511#(<= (+ main_offset 928) main_length)] [2018-07-23 13:52:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 13806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,051 INFO L450 AbstractCegarLoop]: Interpolant automaton has 120 states [2018-07-23 13:52:22,052 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2018-07-23 13:52:22,053 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:52:22,053 INFO L87 Difference]: Start difference. First operand 238 states and 238 transitions. Second operand 120 states. [2018-07-23 13:52:22,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:22,287 INFO L93 Difference]: Finished difference Result 241 states and 241 transitions. [2018-07-23 13:52:22,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2018-07-23 13:52:22,287 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 237 [2018-07-23 13:52:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:22,288 INFO L225 Difference]: With dead ends: 241 [2018-07-23 13:52:22,288 INFO L226 Difference]: Without dead ends: 240 [2018-07-23 13:52:22,288 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2018-07-23 13:52:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-07-23 13:52:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2018-07-23 13:52:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-07-23 13:52:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2018-07-23 13:52:22,293 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 237 [2018-07-23 13:52:22,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:22,293 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2018-07-23 13:52:22,294 INFO L472 AbstractCegarLoop]: Interpolant automaton has 120 states. [2018-07-23 13:52:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2018-07-23 13:52:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-07-23 13:52:22,295 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:22,295 INFO L357 BasicCegarLoop]: trace histogram [119, 118, 1, 1] [2018-07-23 13:52:22,295 INFO L414 AbstractCegarLoop]: === Iteration 119 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash -191830068, now seen corresponding path program 118 times [2018-07-23 13:52:22,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 14042 backedges. 0 proven. 14042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,821 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:22,821 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2018-07-23 13:52:22,821 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,822 INFO L185 omatonBuilderFactory]: Interpolants [65561#true, 65563#(<= (+ main_offset 1048) main_length), 65562#false, 65565#(<= (+ main_offset 1040) main_length), 65564#(<= (+ main_offset 1044) main_length), 65567#(<= (+ main_offset 1032) main_length), 65566#(<= (+ main_offset 1036) main_length), 65569#(<= (+ main_offset 1024) main_length), 65568#(<= (+ main_offset 1028) main_length), 65571#(<= (+ main_offset 1016) main_length), 65570#(<= (+ main_offset 1020) main_length), 65573#(<= (+ main_offset 1008) main_length), 65572#(<= (+ main_offset 1012) main_length), 65575#(<= (+ main_offset 1000) main_length), 65574#(<= (+ main_offset 1004) main_length), 65577#(<= (+ main_offset 992) main_length), 65576#(<= (+ main_offset 996) main_length), 65579#(<= (+ main_offset 984) main_length), 65578#(<= (+ main_offset 988) main_length), 65581#(<= (+ main_offset 976) main_length), 65580#(<= (+ main_offset 980) main_length), 65583#(<= (+ main_offset 968) main_length), 65582#(<= (+ main_offset 972) main_length), 65585#(<= (+ main_offset 960) main_length), 65584#(<= (+ main_offset 964) main_length), 65587#(<= (+ main_offset 952) main_length), 65586#(<= (+ main_offset 956) main_length), 65589#(<= (+ main_offset 944) main_length), 65588#(<= (+ main_offset 948) main_length), 65591#(<= (+ main_offset 936) main_length), 65590#(<= (+ main_offset 940) main_length), 65593#(<= (+ main_offset 928) main_length), 65592#(<= (+ main_offset 932) main_length), 65595#(<= (+ main_offset 920) main_length), 65594#(<= (+ main_offset 924) main_length), 65597#(<= (+ main_offset 912) main_length), 65596#(<= (+ main_offset 916) main_length), 65599#(<= (+ main_offset 904) main_length), 65598#(<= (+ main_offset 908) main_length), 65601#(<= (+ main_offset 896) main_length), 65600#(<= (+ main_offset 900) main_length), 65603#(<= (+ main_offset 888) main_length), 65602#(<= (+ main_offset 892) main_length), 65605#(<= (+ main_offset 880) main_length), 65604#(<= (+ main_offset 884) main_length), 65607#(<= (+ main_offset 872) main_length), 65606#(<= (+ main_offset 876) main_length), 65609#(<= (+ main_offset 864) main_length), 65608#(<= (+ main_offset 868) main_length), 65611#(<= (+ main_offset 856) main_length), 65610#(<= (+ main_offset 860) main_length), 65613#(<= (+ main_offset 848) main_length), 65612#(<= (+ main_offset 852) main_length), 65615#(<= (+ main_offset 840) main_length), 65614#(<= (+ main_offset 844) main_length), 65617#(<= (+ main_offset 832) main_length), 65616#(<= (+ main_offset 836) main_length), 65619#(<= (+ main_offset 824) main_length), 65618#(<= (+ main_offset 828) main_length), 65621#(<= (+ main_offset 816) main_length), 65620#(<= (+ main_offset 820) main_length), 65623#(<= (+ main_offset 808) main_length), 65622#(<= (+ main_offset 812) main_length), 65625#(<= (+ main_offset 800) main_length), 65624#(<= (+ main_offset 804) main_length), 65627#(<= (+ main_offset 792) main_length), 65626#(<= (+ main_offset 796) main_length), 65629#(<= (+ main_offset 784) main_length), 65628#(<= (+ main_offset 788) main_length), 65631#(<= (+ main_offset 776) main_length), 65630#(<= (+ main_offset 780) main_length), 65633#(<= (+ main_offset 768) main_length), 65632#(<= (+ main_offset 772) main_length), 65635#(<= (+ main_offset 760) main_length), 65634#(<= (+ main_offset 764) main_length), 65637#(<= (+ main_offset 752) main_length), 65636#(<= (+ main_offset 756) main_length), 65639#(<= (+ main_offset 744) main_length), 65638#(<= (+ main_offset 748) main_length), 65641#(<= (+ main_offset 736) main_length), 65640#(<= (+ main_offset 740) main_length), 65643#(<= (+ main_offset 728) main_length), 65642#(<= (+ main_offset 732) main_length), 65645#(<= (+ main_offset 720) main_length), 65644#(<= (+ main_offset 724) main_length), 65647#(<= (+ main_offset 712) main_length), 65646#(<= (+ main_offset 716) main_length), 65649#(<= (+ main_offset 704) main_length), 65648#(<= (+ main_offset 708) main_length), 65651#(<= (+ main_offset 696) main_length), 65650#(<= (+ main_offset 700) main_length), 65653#(<= (+ main_offset 688) main_length), 65652#(<= (+ main_offset 692) main_length), 65655#(<= (+ main_offset 680) main_length), 65654#(<= (+ main_offset 684) main_length), 65657#(<= (+ main_offset 672) main_length), 65656#(<= (+ main_offset 676) main_length), 65659#(<= (+ main_offset 664) main_length), 65658#(<= (+ main_offset 668) main_length), 65661#(<= (+ main_offset 656) main_length), 65660#(<= (+ main_offset 660) main_length), 65663#(<= (+ main_offset 648) main_length), 65662#(<= (+ main_offset 652) main_length), 65665#(<= (+ main_offset 640) main_length), 65664#(<= (+ main_offset 644) main_length), 65667#(<= (+ main_offset 632) main_length), 65666#(<= (+ main_offset 636) main_length), 65669#(<= (+ main_offset 624) main_length), 65668#(<= (+ main_offset 628) main_length), 65671#(<= (+ main_offset 616) main_length), 65670#(<= (+ main_offset 620) main_length), 65673#(<= (+ main_offset 608) main_length), 65672#(<= (+ main_offset 612) main_length), 65675#(<= (+ main_offset 600) main_length), 65674#(<= (+ main_offset 604) main_length), 65677#(<= (+ main_offset 592) main_length), 65676#(<= (+ main_offset 596) main_length), 65679#(<= (+ main_offset 584) main_length), 65678#(<= (+ main_offset 588) main_length), 65681#(<= (+ main_offset 576) main_length), 65680#(<= (+ main_offset 580) main_length)] [2018-07-23 13:52:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 14042 backedges. 0 proven. 14042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:22,823 INFO L450 AbstractCegarLoop]: Interpolant automaton has 121 states [2018-07-23 13:52:22,825 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2018-07-23 13:52:22,825 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:52:22,825 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand 121 states. [2018-07-23 13:52:23,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:23,159 INFO L93 Difference]: Finished difference Result 243 states and 243 transitions. [2018-07-23 13:52:23,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-07-23 13:52:23,159 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 239 [2018-07-23 13:52:23,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:23,160 INFO L225 Difference]: With dead ends: 243 [2018-07-23 13:52:23,160 INFO L226 Difference]: Without dead ends: 242 [2018-07-23 13:52:23,162 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2018-07-23 13:52:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-07-23 13:52:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-07-23 13:52:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-07-23 13:52:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 242 transitions. [2018-07-23 13:52:23,166 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 242 transitions. Word has length 239 [2018-07-23 13:52:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:23,166 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 242 transitions. [2018-07-23 13:52:23,166 INFO L472 AbstractCegarLoop]: Interpolant automaton has 121 states. [2018-07-23 13:52:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 242 transitions. [2018-07-23 13:52:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-07-23 13:52:23,167 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:23,167 INFO L357 BasicCegarLoop]: trace histogram [120, 119, 1, 1] [2018-07-23 13:52:23,167 INFO L414 AbstractCegarLoop]: === Iteration 120 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:23,168 INFO L82 PathProgramCache]: Analyzing trace with hash 334899470, now seen corresponding path program 119 times [2018-07-23 13:52:23,168 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 14280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,968 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:23,969 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2018-07-23 13:52:23,969 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:23,969 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 13:52:23,969 INFO L185 omatonBuilderFactory]: Interpolants [66653#false, 66652#true, 66655#(<= (+ main_offset 1044) main_length), 66654#(<= (+ main_offset 1048) main_length), 66657#(<= (+ main_offset 1036) main_length), 66656#(<= (+ main_offset 1040) main_length), 66659#(<= (+ main_offset 1028) main_length), 66658#(<= (+ main_offset 1032) main_length), 66661#(<= (+ main_offset 1020) main_length), 66660#(<= (+ main_offset 1024) main_length), 66663#(<= (+ main_offset 1012) main_length), 66662#(<= (+ main_offset 1016) main_length), 66665#(<= (+ main_offset 1004) main_length), 66664#(<= (+ main_offset 1008) main_length), 66667#(<= (+ main_offset 996) main_length), 66666#(<= (+ main_offset 1000) main_length), 66669#(<= (+ main_offset 988) main_length), 66668#(<= (+ main_offset 992) main_length), 66671#(<= (+ main_offset 980) main_length), 66670#(<= (+ main_offset 984) main_length), 66673#(<= (+ main_offset 972) main_length), 66672#(<= (+ main_offset 976) main_length), 66675#(<= (+ main_offset 964) main_length), 66674#(<= (+ main_offset 968) main_length), 66677#(<= (+ main_offset 956) main_length), 66676#(<= (+ main_offset 960) main_length), 66679#(<= (+ main_offset 948) main_length), 66678#(<= (+ main_offset 952) main_length), 66681#(<= (+ main_offset 940) main_length), 66680#(<= (+ main_offset 944) main_length), 66683#(<= (+ main_offset 932) main_length), 66682#(<= (+ main_offset 936) main_length), 66685#(<= (+ main_offset 924) main_length), 66684#(<= (+ main_offset 928) main_length), 66687#(<= (+ main_offset 916) main_length), 66686#(<= (+ main_offset 920) main_length), 66689#(<= (+ main_offset 908) main_length), 66688#(<= (+ main_offset 912) main_length), 66691#(<= (+ main_offset 900) main_length), 66690#(<= (+ main_offset 904) main_length), 66693#(<= (+ main_offset 892) main_length), 66692#(<= (+ main_offset 896) main_length), 66695#(<= (+ main_offset 884) main_length), 66694#(<= (+ main_offset 888) main_length), 66697#(<= (+ main_offset 876) main_length), 66696#(<= (+ main_offset 880) main_length), 66699#(<= (+ main_offset 868) main_length), 66698#(<= (+ main_offset 872) main_length), 66701#(<= (+ main_offset 860) main_length), 66700#(<= (+ main_offset 864) main_length), 66703#(<= (+ main_offset 852) main_length), 66702#(<= (+ main_offset 856) main_length), 66705#(<= (+ main_offset 844) main_length), 66704#(<= (+ main_offset 848) main_length), 66707#(<= (+ main_offset 836) main_length), 66706#(<= (+ main_offset 840) main_length), 66709#(<= (+ main_offset 828) main_length), 66708#(<= (+ main_offset 832) main_length), 66711#(<= (+ main_offset 820) main_length), 66710#(<= (+ main_offset 824) main_length), 66713#(<= (+ main_offset 812) main_length), 66712#(<= (+ main_offset 816) main_length), 66715#(<= (+ main_offset 804) main_length), 66714#(<= (+ main_offset 808) main_length), 66717#(<= (+ main_offset 796) main_length), 66716#(<= (+ main_offset 800) main_length), 66719#(<= (+ main_offset 788) main_length), 66718#(<= (+ main_offset 792) main_length), 66721#(<= (+ main_offset 780) main_length), 66720#(<= (+ main_offset 784) main_length), 66723#(<= (+ main_offset 772) main_length), 66722#(<= (+ main_offset 776) main_length), 66725#(<= (+ main_offset 764) main_length), 66724#(<= (+ main_offset 768) main_length), 66727#(<= (+ main_offset 756) main_length), 66726#(<= (+ main_offset 760) main_length), 66729#(<= (+ main_offset 748) main_length), 66728#(<= (+ main_offset 752) main_length), 66731#(<= (+ main_offset 740) main_length), 66730#(<= (+ main_offset 744) main_length), 66733#(<= (+ main_offset 732) main_length), 66732#(<= (+ main_offset 736) main_length), 66735#(<= (+ main_offset 724) main_length), 66734#(<= (+ main_offset 728) main_length), 66737#(<= (+ main_offset 716) main_length), 66736#(<= (+ main_offset 720) main_length), 66739#(<= (+ main_offset 708) main_length), 66738#(<= (+ main_offset 712) main_length), 66741#(<= (+ main_offset 700) main_length), 66740#(<= (+ main_offset 704) main_length), 66743#(<= (+ main_offset 692) main_length), 66742#(<= (+ main_offset 696) main_length), 66745#(<= (+ main_offset 684) main_length), 66744#(<= (+ main_offset 688) main_length), 66747#(<= (+ main_offset 676) main_length), 66746#(<= (+ main_offset 680) main_length), 66749#(<= (+ main_offset 668) main_length), 66748#(<= (+ main_offset 672) main_length), 66751#(<= (+ main_offset 660) main_length), 66750#(<= (+ main_offset 664) main_length), 66753#(<= (+ main_offset 652) main_length), 66752#(<= (+ main_offset 656) main_length), 66755#(<= (+ main_offset 644) main_length), 66754#(<= (+ main_offset 648) main_length), 66757#(<= (+ main_offset 636) main_length), 66756#(<= (+ main_offset 640) main_length), 66759#(<= (+ main_offset 628) main_length), 66758#(<= (+ main_offset 632) main_length), 66761#(<= (+ main_offset 620) main_length), 66760#(<= (+ main_offset 624) main_length), 66763#(<= (+ main_offset 612) main_length), 66762#(<= (+ main_offset 616) main_length), 66765#(<= (+ main_offset 604) main_length), 66764#(<= (+ main_offset 608) main_length), 66767#(<= (+ main_offset 596) main_length), 66766#(<= (+ main_offset 600) main_length), 66769#(<= (+ main_offset 588) main_length), 66768#(<= (+ main_offset 592) main_length), 66771#(<= (+ main_offset 580) main_length), 66770#(<= (+ main_offset 584) main_length), 66773#(<= (+ main_offset 572) main_length), 66772#(<= (+ main_offset 576) main_length)] [2018-07-23 13:52:23,970 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 14280 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:23,970 INFO L450 AbstractCegarLoop]: Interpolant automaton has 122 states [2018-07-23 13:52:23,972 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2018-07-23 13:52:23,972 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:52:23,973 INFO L87 Difference]: Start difference. First operand 242 states and 242 transitions. Second operand 122 states. [2018-07-23 13:52:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,262 INFO L93 Difference]: Finished difference Result 245 states and 245 transitions. [2018-07-23 13:52:24,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2018-07-23 13:52:24,262 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 241 [2018-07-23 13:52:24,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,263 INFO L225 Difference]: With dead ends: 245 [2018-07-23 13:52:24,263 INFO L226 Difference]: Without dead ends: 244 [2018-07-23 13:52:24,264 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2018-07-23 13:52:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-07-23 13:52:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2018-07-23 13:52:24,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-07-23 13:52:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2018-07-23 13:52:24,267 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 241 [2018-07-23 13:52:24,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:24,267 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2018-07-23 13:52:24,267 INFO L472 AbstractCegarLoop]: Interpolant automaton has 122 states. [2018-07-23 13:52:24,267 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2018-07-23 13:52:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-07-23 13:52:24,268 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:24,268 INFO L357 BasicCegarLoop]: trace histogram [121, 120, 1, 1] [2018-07-23 13:52:24,268 INFO L414 AbstractCegarLoop]: === Iteration 121 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash -284155440, now seen corresponding path program 120 times [2018-07-23 13:52:24,268 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14520 backedges. 0 proven. 14520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,837 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:24,837 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2018-07-23 13:52:24,837 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,838 INFO L185 omatonBuilderFactory]: Interpolants [67841#(<= (+ main_offset 700) main_length), 67840#(<= (+ main_offset 704) main_length), 67843#(<= (+ main_offset 692) main_length), 67842#(<= (+ main_offset 696) main_length), 67845#(<= (+ main_offset 684) main_length), 67844#(<= (+ main_offset 688) main_length), 67847#(<= (+ main_offset 676) main_length), 67846#(<= (+ main_offset 680) main_length), 67849#(<= (+ main_offset 668) main_length), 67848#(<= (+ main_offset 672) main_length), 67851#(<= (+ main_offset 660) main_length), 67850#(<= (+ main_offset 664) main_length), 67853#(<= (+ main_offset 652) main_length), 67852#(<= (+ main_offset 656) main_length), 67855#(<= (+ main_offset 644) main_length), 67854#(<= (+ main_offset 648) main_length), 67857#(<= (+ main_offset 636) main_length), 67856#(<= (+ main_offset 640) main_length), 67859#(<= (+ main_offset 628) main_length), 67858#(<= (+ main_offset 632) main_length), 67861#(<= (+ main_offset 620) main_length), 67860#(<= (+ main_offset 624) main_length), 67863#(<= (+ main_offset 612) main_length), 67862#(<= (+ main_offset 616) main_length), 67865#(<= (+ main_offset 604) main_length), 67864#(<= (+ main_offset 608) main_length), 67867#(<= (+ main_offset 596) main_length), 67866#(<= (+ main_offset 600) main_length), 67869#(<= (+ main_offset 588) main_length), 67868#(<= (+ main_offset 592) main_length), 67871#(<= (+ main_offset 580) main_length), 67870#(<= (+ main_offset 584) main_length), 67873#(<= (+ main_offset 572) main_length), 67872#(<= (+ main_offset 576) main_length), 67874#(<= (+ main_offset 568) main_length), 67753#false, 67752#true, 67755#(<= (+ main_offset 1044) main_length), 67754#(<= (+ main_offset 1048) main_length), 67757#(<= (+ main_offset 1036) main_length), 67756#(<= (+ main_offset 1040) main_length), 67759#(<= (+ main_offset 1028) main_length), 67758#(<= (+ main_offset 1032) main_length), 67761#(<= (+ main_offset 1020) main_length), 67760#(<= (+ main_offset 1024) main_length), 67763#(<= (+ main_offset 1012) main_length), 67762#(<= (+ main_offset 1016) main_length), 67765#(<= (+ main_offset 1004) main_length), 67764#(<= (+ main_offset 1008) main_length), 67767#(<= (+ main_offset 996) main_length), 67766#(<= (+ main_offset 1000) main_length), 67769#(<= (+ main_offset 988) main_length), 67768#(<= (+ main_offset 992) main_length), 67771#(<= (+ main_offset 980) main_length), 67770#(<= (+ main_offset 984) main_length), 67773#(<= (+ main_offset 972) main_length), 67772#(<= (+ main_offset 976) main_length), 67775#(<= (+ main_offset 964) main_length), 67774#(<= (+ main_offset 968) main_length), 67777#(<= (+ main_offset 956) main_length), 67776#(<= (+ main_offset 960) main_length), 67779#(<= (+ main_offset 948) main_length), 67778#(<= (+ main_offset 952) main_length), 67781#(<= (+ main_offset 940) main_length), 67780#(<= (+ main_offset 944) main_length), 67783#(<= (+ main_offset 932) main_length), 67782#(<= (+ main_offset 936) main_length), 67785#(<= (+ main_offset 924) main_length), 67784#(<= (+ main_offset 928) main_length), 67787#(<= (+ main_offset 916) main_length), 67786#(<= (+ main_offset 920) main_length), 67789#(<= (+ main_offset 908) main_length), 67788#(<= (+ main_offset 912) main_length), 67791#(<= (+ main_offset 900) main_length), 67790#(<= (+ main_offset 904) main_length), 67793#(<= (+ main_offset 892) main_length), 67792#(<= (+ main_offset 896) main_length), 67795#(<= (+ main_offset 884) main_length), 67794#(<= (+ main_offset 888) main_length), 67797#(<= (+ main_offset 876) main_length), 67796#(<= (+ main_offset 880) main_length), 67799#(<= (+ main_offset 868) main_length), 67798#(<= (+ main_offset 872) main_length), 67801#(<= (+ main_offset 860) main_length), 67800#(<= (+ main_offset 864) main_length), 67803#(<= (+ main_offset 852) main_length), 67802#(<= (+ main_offset 856) main_length), 67805#(<= (+ main_offset 844) main_length), 67804#(<= (+ main_offset 848) main_length), 67807#(<= (+ main_offset 836) main_length), 67806#(<= (+ main_offset 840) main_length), 67809#(<= (+ main_offset 828) main_length), 67808#(<= (+ main_offset 832) main_length), 67811#(<= (+ main_offset 820) main_length), 67810#(<= (+ main_offset 824) main_length), 67813#(<= (+ main_offset 812) main_length), 67812#(<= (+ main_offset 816) main_length), 67815#(<= (+ main_offset 804) main_length), 67814#(<= (+ main_offset 808) main_length), 67817#(<= (+ main_offset 796) main_length), 67816#(<= (+ main_offset 800) main_length), 67819#(<= (+ main_offset 788) main_length), 67818#(<= (+ main_offset 792) main_length), 67821#(<= (+ main_offset 780) main_length), 67820#(<= (+ main_offset 784) main_length), 67823#(<= (+ main_offset 772) main_length), 67822#(<= (+ main_offset 776) main_length), 67825#(<= (+ main_offset 764) main_length), 67824#(<= (+ main_offset 768) main_length), 67827#(<= (+ main_offset 756) main_length), 67826#(<= (+ main_offset 760) main_length), 67829#(<= (+ main_offset 748) main_length), 67828#(<= (+ main_offset 752) main_length), 67831#(<= (+ main_offset 740) main_length), 67830#(<= (+ main_offset 744) main_length), 67833#(<= (+ main_offset 732) main_length), 67832#(<= (+ main_offset 736) main_length), 67835#(<= (+ main_offset 724) main_length), 67834#(<= (+ main_offset 728) main_length), 67837#(<= (+ main_offset 716) main_length), 67836#(<= (+ main_offset 720) main_length), 67839#(<= (+ main_offset 708) main_length), 67838#(<= (+ main_offset 712) main_length)] [2018-07-23 13:52:24,839 INFO L134 CoverageAnalysis]: Checked inductivity of 14520 backedges. 0 proven. 14520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:24,839 INFO L450 AbstractCegarLoop]: Interpolant automaton has 123 states [2018-07-23 13:52:24,840 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2018-07-23 13:52:24,841 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:52:24,841 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 123 states. [2018-07-23 13:52:24,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:24,994 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2018-07-23 13:52:24,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2018-07-23 13:52:24,994 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 243 [2018-07-23 13:52:24,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:24,995 INFO L225 Difference]: With dead ends: 247 [2018-07-23 13:52:24,995 INFO L226 Difference]: Without dead ends: 246 [2018-07-23 13:52:24,996 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2018-07-23 13:52:24,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2018-07-23 13:52:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2018-07-23 13:52:25,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-07-23 13:52:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2018-07-23 13:52:25,001 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 243 [2018-07-23 13:52:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,001 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2018-07-23 13:52:25,002 INFO L472 AbstractCegarLoop]: Interpolant automaton has 123 states. [2018-07-23 13:52:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2018-07-23 13:52:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2018-07-23 13:52:25,003 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,003 INFO L357 BasicCegarLoop]: trace histogram [122, 121, 1, 1] [2018-07-23 13:52:25,003 INFO L414 AbstractCegarLoop]: === Iteration 122 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1804530194, now seen corresponding path program 121 times [2018-07-23 13:52:25,003 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 14762 backedges. 0 proven. 14762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,615 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:25,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2018-07-23 13:52:25,615 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,616 INFO L185 omatonBuilderFactory]: Interpolants [68865#(<= (+ main_offset 1040) main_length), 68864#(<= (+ main_offset 1044) main_length), 68867#(<= (+ main_offset 1032) main_length), 68866#(<= (+ main_offset 1036) main_length), 68869#(<= (+ main_offset 1024) main_length), 68868#(<= (+ main_offset 1028) main_length), 68871#(<= (+ main_offset 1016) main_length), 68870#(<= (+ main_offset 1020) main_length), 68873#(<= (+ main_offset 1008) main_length), 68872#(<= (+ main_offset 1012) main_length), 68875#(<= (+ main_offset 1000) main_length), 68874#(<= (+ main_offset 1004) main_length), 68877#(<= (+ main_offset 992) main_length), 68876#(<= (+ main_offset 996) main_length), 68879#(<= (+ main_offset 984) main_length), 68878#(<= (+ main_offset 988) main_length), 68881#(<= (+ main_offset 976) main_length), 68880#(<= (+ main_offset 980) main_length), 68883#(<= (+ main_offset 968) main_length), 68882#(<= (+ main_offset 972) main_length), 68885#(<= (+ main_offset 960) main_length), 68884#(<= (+ main_offset 964) main_length), 68887#(<= (+ main_offset 952) main_length), 68886#(<= (+ main_offset 956) main_length), 68889#(<= (+ main_offset 944) main_length), 68888#(<= (+ main_offset 948) main_length), 68891#(<= (+ main_offset 936) main_length), 68890#(<= (+ main_offset 940) main_length), 68893#(<= (+ main_offset 928) main_length), 68892#(<= (+ main_offset 932) main_length), 68895#(<= (+ main_offset 920) main_length), 68894#(<= (+ main_offset 924) main_length), 68897#(<= (+ main_offset 912) main_length), 68896#(<= (+ main_offset 916) main_length), 68899#(<= (+ main_offset 904) main_length), 68898#(<= (+ main_offset 908) main_length), 68901#(<= (+ main_offset 896) main_length), 68900#(<= (+ main_offset 900) main_length), 68903#(<= (+ main_offset 888) main_length), 68902#(<= (+ main_offset 892) main_length), 68905#(<= (+ main_offset 880) main_length), 68904#(<= (+ main_offset 884) main_length), 68907#(<= (+ main_offset 872) main_length), 68906#(<= (+ main_offset 876) main_length), 68909#(<= (+ main_offset 864) main_length), 68908#(<= (+ main_offset 868) main_length), 68911#(<= (+ main_offset 856) main_length), 68910#(<= (+ main_offset 860) main_length), 68913#(<= (+ main_offset 848) main_length), 68912#(<= (+ main_offset 852) main_length), 68915#(<= (+ main_offset 840) main_length), 68914#(<= (+ main_offset 844) main_length), 68917#(<= (+ main_offset 832) main_length), 68916#(<= (+ main_offset 836) main_length), 68919#(<= (+ main_offset 824) main_length), 68918#(<= (+ main_offset 828) main_length), 68921#(<= (+ main_offset 816) main_length), 68920#(<= (+ main_offset 820) main_length), 68923#(<= (+ main_offset 808) main_length), 68922#(<= (+ main_offset 812) main_length), 68925#(<= (+ main_offset 800) main_length), 68924#(<= (+ main_offset 804) main_length), 68927#(<= (+ main_offset 792) main_length), 68926#(<= (+ main_offset 796) main_length), 68929#(<= (+ main_offset 784) main_length), 68928#(<= (+ main_offset 788) main_length), 68931#(<= (+ main_offset 776) main_length), 68930#(<= (+ main_offset 780) main_length), 68933#(<= (+ main_offset 768) main_length), 68932#(<= (+ main_offset 772) main_length), 68935#(<= (+ main_offset 760) main_length), 68934#(<= (+ main_offset 764) main_length), 68937#(<= (+ main_offset 752) main_length), 68936#(<= (+ main_offset 756) main_length), 68939#(<= (+ main_offset 744) main_length), 68938#(<= (+ main_offset 748) main_length), 68941#(<= (+ main_offset 736) main_length), 68940#(<= (+ main_offset 740) main_length), 68943#(<= (+ main_offset 728) main_length), 68942#(<= (+ main_offset 732) main_length), 68945#(<= (+ main_offset 720) main_length), 68944#(<= (+ main_offset 724) main_length), 68947#(<= (+ main_offset 712) main_length), 68946#(<= (+ main_offset 716) main_length), 68949#(<= (+ main_offset 704) main_length), 68948#(<= (+ main_offset 708) main_length), 68951#(<= (+ main_offset 696) main_length), 68950#(<= (+ main_offset 700) main_length), 68953#(<= (+ main_offset 688) main_length), 68952#(<= (+ main_offset 692) main_length), 68955#(<= (+ main_offset 680) main_length), 68954#(<= (+ main_offset 684) main_length), 68957#(<= (+ main_offset 672) main_length), 68956#(<= (+ main_offset 676) main_length), 68959#(<= (+ main_offset 664) main_length), 68958#(<= (+ main_offset 668) main_length), 68961#(<= (+ main_offset 656) main_length), 68960#(<= (+ main_offset 660) main_length), 68963#(<= (+ main_offset 648) main_length), 68962#(<= (+ main_offset 652) main_length), 68965#(<= (+ main_offset 640) main_length), 68964#(<= (+ main_offset 644) main_length), 68967#(<= (+ main_offset 632) main_length), 68966#(<= (+ main_offset 636) main_length), 68969#(<= (+ main_offset 624) main_length), 68968#(<= (+ main_offset 628) main_length), 68971#(<= (+ main_offset 616) main_length), 68970#(<= (+ main_offset 620) main_length), 68973#(<= (+ main_offset 608) main_length), 68972#(<= (+ main_offset 612) main_length), 68975#(<= (+ main_offset 600) main_length), 68974#(<= (+ main_offset 604) main_length), 68977#(<= (+ main_offset 592) main_length), 68976#(<= (+ main_offset 596) main_length), 68979#(<= (+ main_offset 584) main_length), 68978#(<= (+ main_offset 588) main_length), 68981#(<= (+ main_offset 576) main_length), 68980#(<= (+ main_offset 580) main_length), 68983#(<= (+ main_offset 568) main_length), 68982#(<= (+ main_offset 572) main_length), 68984#(<= (+ main_offset 564) main_length), 68861#true, 68863#(<= (+ main_offset 1048) main_length), 68862#false] [2018-07-23 13:52:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 14762 backedges. 0 proven. 14762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:25,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 124 states [2018-07-23 13:52:25,618 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2018-07-23 13:52:25,619 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:52:25,619 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand 124 states. [2018-07-23 13:52:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:25,974 INFO L93 Difference]: Finished difference Result 249 states and 249 transitions. [2018-07-23 13:52:25,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2018-07-23 13:52:25,974 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 245 [2018-07-23 13:52:25,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:25,975 INFO L225 Difference]: With dead ends: 249 [2018-07-23 13:52:25,975 INFO L226 Difference]: Without dead ends: 248 [2018-07-23 13:52:25,976 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2018-07-23 13:52:25,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-07-23 13:52:25,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2018-07-23 13:52:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-07-23 13:52:25,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 248 transitions. [2018-07-23 13:52:25,981 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 248 transitions. Word has length 245 [2018-07-23 13:52:25,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:25,981 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 248 transitions. [2018-07-23 13:52:25,981 INFO L472 AbstractCegarLoop]: Interpolant automaton has 124 states. [2018-07-23 13:52:25,982 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 248 transitions. [2018-07-23 13:52:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-23 13:52:25,982 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:25,983 INFO L357 BasicCegarLoop]: trace histogram [123, 122, 1, 1] [2018-07-23 13:52:25,983 INFO L414 AbstractCegarLoop]: === Iteration 123 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:25,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1013270060, now seen corresponding path program 122 times [2018-07-23 13:52:25,983 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:26,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:26,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15006 backedges. 0 proven. 15006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,593 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:26,593 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2018-07-23 13:52:26,593 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:26,594 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 13:52:26,594 INFO L185 omatonBuilderFactory]: Interpolants [69979#true, 69981#(<= (+ main_offset 1048) main_length), 69980#false, 69983#(<= (+ main_offset 1040) main_length), 69982#(<= (+ main_offset 1044) main_length), 69985#(<= (+ main_offset 1032) main_length), 69984#(<= (+ main_offset 1036) main_length), 69987#(<= (+ main_offset 1024) main_length), 69986#(<= (+ main_offset 1028) main_length), 69989#(<= (+ main_offset 1016) main_length), 69988#(<= (+ main_offset 1020) main_length), 69991#(<= (+ main_offset 1008) main_length), 69990#(<= (+ main_offset 1012) main_length), 69993#(<= (+ main_offset 1000) main_length), 69992#(<= (+ main_offset 1004) main_length), 69995#(<= (+ main_offset 992) main_length), 69994#(<= (+ main_offset 996) main_length), 69997#(<= (+ main_offset 984) main_length), 69996#(<= (+ main_offset 988) main_length), 69999#(<= (+ main_offset 976) main_length), 69998#(<= (+ main_offset 980) main_length), 70001#(<= (+ main_offset 968) main_length), 70000#(<= (+ main_offset 972) main_length), 70003#(<= (+ main_offset 960) main_length), 70002#(<= (+ main_offset 964) main_length), 70005#(<= (+ main_offset 952) main_length), 70004#(<= (+ main_offset 956) main_length), 70007#(<= (+ main_offset 944) main_length), 70006#(<= (+ main_offset 948) main_length), 70009#(<= (+ main_offset 936) main_length), 70008#(<= (+ main_offset 940) main_length), 70011#(<= (+ main_offset 928) main_length), 70010#(<= (+ main_offset 932) main_length), 70013#(<= (+ main_offset 920) main_length), 70012#(<= (+ main_offset 924) main_length), 70015#(<= (+ main_offset 912) main_length), 70014#(<= (+ main_offset 916) main_length), 70017#(<= (+ main_offset 904) main_length), 70016#(<= (+ main_offset 908) main_length), 70019#(<= (+ main_offset 896) main_length), 70018#(<= (+ main_offset 900) main_length), 70021#(<= (+ main_offset 888) main_length), 70020#(<= (+ main_offset 892) main_length), 70023#(<= (+ main_offset 880) main_length), 70022#(<= (+ main_offset 884) main_length), 70025#(<= (+ main_offset 872) main_length), 70024#(<= (+ main_offset 876) main_length), 70027#(<= (+ main_offset 864) main_length), 70026#(<= (+ main_offset 868) main_length), 70029#(<= (+ main_offset 856) main_length), 70028#(<= (+ main_offset 860) main_length), 70031#(<= (+ main_offset 848) main_length), 70030#(<= (+ main_offset 852) main_length), 70033#(<= (+ main_offset 840) main_length), 70032#(<= (+ main_offset 844) main_length), 70035#(<= (+ main_offset 832) main_length), 70034#(<= (+ main_offset 836) main_length), 70037#(<= (+ main_offset 824) main_length), 70036#(<= (+ main_offset 828) main_length), 70039#(<= (+ main_offset 816) main_length), 70038#(<= (+ main_offset 820) main_length), 70041#(<= (+ main_offset 808) main_length), 70040#(<= (+ main_offset 812) main_length), 70043#(<= (+ main_offset 800) main_length), 70042#(<= (+ main_offset 804) main_length), 70045#(<= (+ main_offset 792) main_length), 70044#(<= (+ main_offset 796) main_length), 70047#(<= (+ main_offset 784) main_length), 70046#(<= (+ main_offset 788) main_length), 70049#(<= (+ main_offset 776) main_length), 70048#(<= (+ main_offset 780) main_length), 70051#(<= (+ main_offset 768) main_length), 70050#(<= (+ main_offset 772) main_length), 70053#(<= (+ main_offset 760) main_length), 70052#(<= (+ main_offset 764) main_length), 70055#(<= (+ main_offset 752) main_length), 70054#(<= (+ main_offset 756) main_length), 70057#(<= (+ main_offset 744) main_length), 70056#(<= (+ main_offset 748) main_length), 70059#(<= (+ main_offset 736) main_length), 70058#(<= (+ main_offset 740) main_length), 70061#(<= (+ main_offset 728) main_length), 70060#(<= (+ main_offset 732) main_length), 70063#(<= (+ main_offset 720) main_length), 70062#(<= (+ main_offset 724) main_length), 70065#(<= (+ main_offset 712) main_length), 70064#(<= (+ main_offset 716) main_length), 70067#(<= (+ main_offset 704) main_length), 70066#(<= (+ main_offset 708) main_length), 70069#(<= (+ main_offset 696) main_length), 70068#(<= (+ main_offset 700) main_length), 70071#(<= (+ main_offset 688) main_length), 70070#(<= (+ main_offset 692) main_length), 70073#(<= (+ main_offset 680) main_length), 70072#(<= (+ main_offset 684) main_length), 70075#(<= (+ main_offset 672) main_length), 70074#(<= (+ main_offset 676) main_length), 70077#(<= (+ main_offset 664) main_length), 70076#(<= (+ main_offset 668) main_length), 70079#(<= (+ main_offset 656) main_length), 70078#(<= (+ main_offset 660) main_length), 70081#(<= (+ main_offset 648) main_length), 70080#(<= (+ main_offset 652) main_length), 70083#(<= (+ main_offset 640) main_length), 70082#(<= (+ main_offset 644) main_length), 70085#(<= (+ main_offset 632) main_length), 70084#(<= (+ main_offset 636) main_length), 70087#(<= (+ main_offset 624) main_length), 70086#(<= (+ main_offset 628) main_length), 70089#(<= (+ main_offset 616) main_length), 70088#(<= (+ main_offset 620) main_length), 70091#(<= (+ main_offset 608) main_length), 70090#(<= (+ main_offset 612) main_length), 70093#(<= (+ main_offset 600) main_length), 70092#(<= (+ main_offset 604) main_length), 70095#(<= (+ main_offset 592) main_length), 70094#(<= (+ main_offset 596) main_length), 70097#(<= (+ main_offset 584) main_length), 70096#(<= (+ main_offset 588) main_length), 70099#(<= (+ main_offset 576) main_length), 70098#(<= (+ main_offset 580) main_length), 70101#(<= (+ main_offset 568) main_length), 70100#(<= (+ main_offset 572) main_length), 70103#(<= (+ main_offset 560) main_length), 70102#(<= (+ main_offset 564) main_length)] [2018-07-23 13:52:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 15006 backedges. 0 proven. 15006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:26,595 INFO L450 AbstractCegarLoop]: Interpolant automaton has 125 states [2018-07-23 13:52:26,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2018-07-23 13:52:26,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:52:26,596 INFO L87 Difference]: Start difference. First operand 248 states and 248 transitions. Second operand 125 states. [2018-07-23 13:52:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:26,842 INFO L93 Difference]: Finished difference Result 251 states and 251 transitions. [2018-07-23 13:52:26,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-07-23 13:52:26,842 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 247 [2018-07-23 13:52:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:26,843 INFO L225 Difference]: With dead ends: 251 [2018-07-23 13:52:26,843 INFO L226 Difference]: Without dead ends: 250 [2018-07-23 13:52:26,844 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2018-07-23 13:52:26,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-07-23 13:52:26,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2018-07-23 13:52:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2018-07-23 13:52:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2018-07-23 13:52:26,849 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 247 [2018-07-23 13:52:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:26,849 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2018-07-23 13:52:26,849 INFO L472 AbstractCegarLoop]: Interpolant automaton has 125 states. [2018-07-23 13:52:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2018-07-23 13:52:26,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-07-23 13:52:26,850 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:26,850 INFO L357 BasicCegarLoop]: trace histogram [124, 123, 1, 1] [2018-07-23 13:52:26,851 INFO L414 AbstractCegarLoop]: === Iteration 124 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1205049622, now seen corresponding path program 123 times [2018-07-23 13:52:26,851 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15252 backedges. 0 proven. 15252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,402 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:27,402 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2018-07-23 13:52:27,402 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,403 INFO L185 omatonBuilderFactory]: Interpolants [71169#(<= (+ main_offset 804) main_length), 71168#(<= (+ main_offset 808) main_length), 71171#(<= (+ main_offset 796) main_length), 71170#(<= (+ main_offset 800) main_length), 71173#(<= (+ main_offset 788) main_length), 71172#(<= (+ main_offset 792) main_length), 71175#(<= (+ main_offset 780) main_length), 71174#(<= (+ main_offset 784) main_length), 71177#(<= (+ main_offset 772) main_length), 71176#(<= (+ main_offset 776) main_length), 71179#(<= (+ main_offset 764) main_length), 71178#(<= (+ main_offset 768) main_length), 71181#(<= (+ main_offset 756) main_length), 71180#(<= (+ main_offset 760) main_length), 71183#(<= (+ main_offset 748) main_length), 71182#(<= (+ main_offset 752) main_length), 71185#(<= (+ main_offset 740) main_length), 71184#(<= (+ main_offset 744) main_length), 71187#(<= (+ main_offset 732) main_length), 71186#(<= (+ main_offset 736) main_length), 71189#(<= (+ main_offset 724) main_length), 71188#(<= (+ main_offset 728) main_length), 71191#(<= (+ main_offset 716) main_length), 71190#(<= (+ main_offset 720) main_length), 71193#(<= (+ main_offset 708) main_length), 71192#(<= (+ main_offset 712) main_length), 71195#(<= (+ main_offset 700) main_length), 71194#(<= (+ main_offset 704) main_length), 71197#(<= (+ main_offset 692) main_length), 71196#(<= (+ main_offset 696) main_length), 71199#(<= (+ main_offset 684) main_length), 71198#(<= (+ main_offset 688) main_length), 71201#(<= (+ main_offset 676) main_length), 71200#(<= (+ main_offset 680) main_length), 71203#(<= (+ main_offset 668) main_length), 71202#(<= (+ main_offset 672) main_length), 71205#(<= (+ main_offset 660) main_length), 71204#(<= (+ main_offset 664) main_length), 71207#(<= (+ main_offset 652) main_length), 71206#(<= (+ main_offset 656) main_length), 71209#(<= (+ main_offset 644) main_length), 71208#(<= (+ main_offset 648) main_length), 71211#(<= (+ main_offset 636) main_length), 71210#(<= (+ main_offset 640) main_length), 71213#(<= (+ main_offset 628) main_length), 71212#(<= (+ main_offset 632) main_length), 71215#(<= (+ main_offset 620) main_length), 71214#(<= (+ main_offset 624) main_length), 71217#(<= (+ main_offset 612) main_length), 71216#(<= (+ main_offset 616) main_length), 71219#(<= (+ main_offset 604) main_length), 71218#(<= (+ main_offset 608) main_length), 71221#(<= (+ main_offset 596) main_length), 71220#(<= (+ main_offset 600) main_length), 71223#(<= (+ main_offset 588) main_length), 71222#(<= (+ main_offset 592) main_length), 71225#(<= (+ main_offset 580) main_length), 71224#(<= (+ main_offset 584) main_length), 71227#(<= (+ main_offset 572) main_length), 71226#(<= (+ main_offset 576) main_length), 71229#(<= (+ main_offset 564) main_length), 71228#(<= (+ main_offset 568) main_length), 71231#(<= (+ main_offset 556) main_length), 71230#(<= (+ main_offset 560) main_length), 71107#false, 71106#true, 71109#(<= (+ main_offset 1044) main_length), 71108#(<= (+ main_offset 1048) main_length), 71111#(<= (+ main_offset 1036) main_length), 71110#(<= (+ main_offset 1040) main_length), 71113#(<= (+ main_offset 1028) main_length), 71112#(<= (+ main_offset 1032) main_length), 71115#(<= (+ main_offset 1020) main_length), 71114#(<= (+ main_offset 1024) main_length), 71117#(<= (+ main_offset 1012) main_length), 71116#(<= (+ main_offset 1016) main_length), 71119#(<= (+ main_offset 1004) main_length), 71118#(<= (+ main_offset 1008) main_length), 71121#(<= (+ main_offset 996) main_length), 71120#(<= (+ main_offset 1000) main_length), 71123#(<= (+ main_offset 988) main_length), 71122#(<= (+ main_offset 992) main_length), 71125#(<= (+ main_offset 980) main_length), 71124#(<= (+ main_offset 984) main_length), 71127#(<= (+ main_offset 972) main_length), 71126#(<= (+ main_offset 976) main_length), 71129#(<= (+ main_offset 964) main_length), 71128#(<= (+ main_offset 968) main_length), 71131#(<= (+ main_offset 956) main_length), 71130#(<= (+ main_offset 960) main_length), 71133#(<= (+ main_offset 948) main_length), 71132#(<= (+ main_offset 952) main_length), 71135#(<= (+ main_offset 940) main_length), 71134#(<= (+ main_offset 944) main_length), 71137#(<= (+ main_offset 932) main_length), 71136#(<= (+ main_offset 936) main_length), 71139#(<= (+ main_offset 924) main_length), 71138#(<= (+ main_offset 928) main_length), 71141#(<= (+ main_offset 916) main_length), 71140#(<= (+ main_offset 920) main_length), 71143#(<= (+ main_offset 908) main_length), 71142#(<= (+ main_offset 912) main_length), 71145#(<= (+ main_offset 900) main_length), 71144#(<= (+ main_offset 904) main_length), 71147#(<= (+ main_offset 892) main_length), 71146#(<= (+ main_offset 896) main_length), 71149#(<= (+ main_offset 884) main_length), 71148#(<= (+ main_offset 888) main_length), 71151#(<= (+ main_offset 876) main_length), 71150#(<= (+ main_offset 880) main_length), 71153#(<= (+ main_offset 868) main_length), 71152#(<= (+ main_offset 872) main_length), 71155#(<= (+ main_offset 860) main_length), 71154#(<= (+ main_offset 864) main_length), 71157#(<= (+ main_offset 852) main_length), 71156#(<= (+ main_offset 856) main_length), 71159#(<= (+ main_offset 844) main_length), 71158#(<= (+ main_offset 848) main_length), 71161#(<= (+ main_offset 836) main_length), 71160#(<= (+ main_offset 840) main_length), 71163#(<= (+ main_offset 828) main_length), 71162#(<= (+ main_offset 832) main_length), 71165#(<= (+ main_offset 820) main_length), 71164#(<= (+ main_offset 824) main_length), 71167#(<= (+ main_offset 812) main_length), 71166#(<= (+ main_offset 816) main_length)] [2018-07-23 13:52:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15252 backedges. 0 proven. 15252 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:27,404 INFO L450 AbstractCegarLoop]: Interpolant automaton has 126 states [2018-07-23 13:52:27,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2018-07-23 13:52:27,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:52:27,405 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand 126 states. [2018-07-23 13:52:27,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:27,534 INFO L93 Difference]: Finished difference Result 253 states and 253 transitions. [2018-07-23 13:52:27,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2018-07-23 13:52:27,534 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 249 [2018-07-23 13:52:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:27,535 INFO L225 Difference]: With dead ends: 253 [2018-07-23 13:52:27,535 INFO L226 Difference]: Without dead ends: 252 [2018-07-23 13:52:27,536 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2018-07-23 13:52:27,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-07-23 13:52:27,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2018-07-23 13:52:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-23 13:52:27,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2018-07-23 13:52:27,539 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 249 [2018-07-23 13:52:27,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:27,539 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2018-07-23 13:52:27,539 INFO L472 AbstractCegarLoop]: Interpolant automaton has 126 states. [2018-07-23 13:52:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2018-07-23 13:52:27,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-07-23 13:52:27,540 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:27,540 INFO L357 BasicCegarLoop]: trace histogram [125, 124, 1, 1] [2018-07-23 13:52:27,540 INFO L414 AbstractCegarLoop]: === Iteration 125 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1588482088, now seen corresponding path program 124 times [2018-07-23 13:52:27,541 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,095 INFO L134 CoverageAnalysis]: Checked inductivity of 15500 backedges. 0 proven. 15500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,096 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,096 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2018-07-23 13:52:28,096 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,096 INFO L185 omatonBuilderFactory]: Interpolants [72243#false, 72242#true, 72245#(<= (+ main_offset 1044) main_length), 72244#(<= (+ main_offset 1048) main_length), 72247#(<= (+ main_offset 1036) main_length), 72246#(<= (+ main_offset 1040) main_length), 72249#(<= (+ main_offset 1028) main_length), 72248#(<= (+ main_offset 1032) main_length), 72251#(<= (+ main_offset 1020) main_length), 72250#(<= (+ main_offset 1024) main_length), 72253#(<= (+ main_offset 1012) main_length), 72252#(<= (+ main_offset 1016) main_length), 72255#(<= (+ main_offset 1004) main_length), 72254#(<= (+ main_offset 1008) main_length), 72257#(<= (+ main_offset 996) main_length), 72256#(<= (+ main_offset 1000) main_length), 72259#(<= (+ main_offset 988) main_length), 72258#(<= (+ main_offset 992) main_length), 72261#(<= (+ main_offset 980) main_length), 72260#(<= (+ main_offset 984) main_length), 72263#(<= (+ main_offset 972) main_length), 72262#(<= (+ main_offset 976) main_length), 72265#(<= (+ main_offset 964) main_length), 72264#(<= (+ main_offset 968) main_length), 72267#(<= (+ main_offset 956) main_length), 72266#(<= (+ main_offset 960) main_length), 72269#(<= (+ main_offset 948) main_length), 72268#(<= (+ main_offset 952) main_length), 72271#(<= (+ main_offset 940) main_length), 72270#(<= (+ main_offset 944) main_length), 72273#(<= (+ main_offset 932) main_length), 72272#(<= (+ main_offset 936) main_length), 72275#(<= (+ main_offset 924) main_length), 72274#(<= (+ main_offset 928) main_length), 72277#(<= (+ main_offset 916) main_length), 72276#(<= (+ main_offset 920) main_length), 72279#(<= (+ main_offset 908) main_length), 72278#(<= (+ main_offset 912) main_length), 72281#(<= (+ main_offset 900) main_length), 72280#(<= (+ main_offset 904) main_length), 72283#(<= (+ main_offset 892) main_length), 72282#(<= (+ main_offset 896) main_length), 72285#(<= (+ main_offset 884) main_length), 72284#(<= (+ main_offset 888) main_length), 72287#(<= (+ main_offset 876) main_length), 72286#(<= (+ main_offset 880) main_length), 72289#(<= (+ main_offset 868) main_length), 72288#(<= (+ main_offset 872) main_length), 72291#(<= (+ main_offset 860) main_length), 72290#(<= (+ main_offset 864) main_length), 72293#(<= (+ main_offset 852) main_length), 72292#(<= (+ main_offset 856) main_length), 72295#(<= (+ main_offset 844) main_length), 72294#(<= (+ main_offset 848) main_length), 72297#(<= (+ main_offset 836) main_length), 72296#(<= (+ main_offset 840) main_length), 72299#(<= (+ main_offset 828) main_length), 72298#(<= (+ main_offset 832) main_length), 72301#(<= (+ main_offset 820) main_length), 72300#(<= (+ main_offset 824) main_length), 72303#(<= (+ main_offset 812) main_length), 72302#(<= (+ main_offset 816) main_length), 72305#(<= (+ main_offset 804) main_length), 72304#(<= (+ main_offset 808) main_length), 72307#(<= (+ main_offset 796) main_length), 72306#(<= (+ main_offset 800) main_length), 72309#(<= (+ main_offset 788) main_length), 72308#(<= (+ main_offset 792) main_length), 72311#(<= (+ main_offset 780) main_length), 72310#(<= (+ main_offset 784) main_length), 72313#(<= (+ main_offset 772) main_length), 72312#(<= (+ main_offset 776) main_length), 72315#(<= (+ main_offset 764) main_length), 72314#(<= (+ main_offset 768) main_length), 72317#(<= (+ main_offset 756) main_length), 72316#(<= (+ main_offset 760) main_length), 72319#(<= (+ main_offset 748) main_length), 72318#(<= (+ main_offset 752) main_length), 72321#(<= (+ main_offset 740) main_length), 72320#(<= (+ main_offset 744) main_length), 72323#(<= (+ main_offset 732) main_length), 72322#(<= (+ main_offset 736) main_length), 72325#(<= (+ main_offset 724) main_length), 72324#(<= (+ main_offset 728) main_length), 72327#(<= (+ main_offset 716) main_length), 72326#(<= (+ main_offset 720) main_length), 72329#(<= (+ main_offset 708) main_length), 72328#(<= (+ main_offset 712) main_length), 72331#(<= (+ main_offset 700) main_length), 72330#(<= (+ main_offset 704) main_length), 72333#(<= (+ main_offset 692) main_length), 72332#(<= (+ main_offset 696) main_length), 72335#(<= (+ main_offset 684) main_length), 72334#(<= (+ main_offset 688) main_length), 72337#(<= (+ main_offset 676) main_length), 72336#(<= (+ main_offset 680) main_length), 72339#(<= (+ main_offset 668) main_length), 72338#(<= (+ main_offset 672) main_length), 72341#(<= (+ main_offset 660) main_length), 72340#(<= (+ main_offset 664) main_length), 72343#(<= (+ main_offset 652) main_length), 72342#(<= (+ main_offset 656) main_length), 72345#(<= (+ main_offset 644) main_length), 72344#(<= (+ main_offset 648) main_length), 72347#(<= (+ main_offset 636) main_length), 72346#(<= (+ main_offset 640) main_length), 72349#(<= (+ main_offset 628) main_length), 72348#(<= (+ main_offset 632) main_length), 72351#(<= (+ main_offset 620) main_length), 72350#(<= (+ main_offset 624) main_length), 72353#(<= (+ main_offset 612) main_length), 72352#(<= (+ main_offset 616) main_length), 72355#(<= (+ main_offset 604) main_length), 72354#(<= (+ main_offset 608) main_length), 72357#(<= (+ main_offset 596) main_length), 72356#(<= (+ main_offset 600) main_length), 72359#(<= (+ main_offset 588) main_length), 72358#(<= (+ main_offset 592) main_length), 72361#(<= (+ main_offset 580) main_length), 72360#(<= (+ main_offset 584) main_length), 72363#(<= (+ main_offset 572) main_length), 72362#(<= (+ main_offset 576) main_length), 72365#(<= (+ main_offset 564) main_length), 72364#(<= (+ main_offset 568) main_length), 72367#(<= (+ main_offset 556) main_length), 72366#(<= (+ main_offset 560) main_length), 72368#(<= (+ main_offset 552) main_length)] [2018-07-23 13:52:28,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15500 backedges. 0 proven. 15500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,097 INFO L450 AbstractCegarLoop]: Interpolant automaton has 127 states [2018-07-23 13:52:28,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2018-07-23 13:52:28,099 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:52:28,099 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand 127 states. [2018-07-23 13:52:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:28,363 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2018-07-23 13:52:28,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2018-07-23 13:52:28,363 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 251 [2018-07-23 13:52:28,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:28,364 INFO L225 Difference]: With dead ends: 255 [2018-07-23 13:52:28,364 INFO L226 Difference]: Without dead ends: 254 [2018-07-23 13:52:28,365 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2018-07-23 13:52:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-07-23 13:52:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2018-07-23 13:52:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-07-23 13:52:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 254 transitions. [2018-07-23 13:52:28,369 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 254 transitions. Word has length 251 [2018-07-23 13:52:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:28,369 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 254 transitions. [2018-07-23 13:52:28,369 INFO L472 AbstractCegarLoop]: Interpolant automaton has 127 states. [2018-07-23 13:52:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 254 transitions. [2018-07-23 13:52:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-23 13:52:28,370 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:28,370 INFO L357 BasicCegarLoop]: trace histogram [126, 125, 1, 1] [2018-07-23 13:52:28,370 INFO L414 AbstractCegarLoop]: === Iteration 126 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:28,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1817895398, now seen corresponding path program 125 times [2018-07-23 13:52:28,370 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:28,941 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 15750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,941 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:28,941 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2018-07-23 13:52:28,942 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:28,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,942 INFO L185 omatonBuilderFactory]: Interpolants [73473#(<= (+ main_offset 712) main_length), 73472#(<= (+ main_offset 716) main_length), 73475#(<= (+ main_offset 704) main_length), 73474#(<= (+ main_offset 708) main_length), 73477#(<= (+ main_offset 696) main_length), 73476#(<= (+ main_offset 700) main_length), 73479#(<= (+ main_offset 688) main_length), 73478#(<= (+ main_offset 692) main_length), 73481#(<= (+ main_offset 680) main_length), 73480#(<= (+ main_offset 684) main_length), 73483#(<= (+ main_offset 672) main_length), 73482#(<= (+ main_offset 676) main_length), 73485#(<= (+ main_offset 664) main_length), 73484#(<= (+ main_offset 668) main_length), 73487#(<= (+ main_offset 656) main_length), 73486#(<= (+ main_offset 660) main_length), 73489#(<= (+ main_offset 648) main_length), 73488#(<= (+ main_offset 652) main_length), 73491#(<= (+ main_offset 640) main_length), 73490#(<= (+ main_offset 644) main_length), 73493#(<= (+ main_offset 632) main_length), 73492#(<= (+ main_offset 636) main_length), 73495#(<= (+ main_offset 624) main_length), 73494#(<= (+ main_offset 628) main_length), 73497#(<= (+ main_offset 616) main_length), 73496#(<= (+ main_offset 620) main_length), 73499#(<= (+ main_offset 608) main_length), 73498#(<= (+ main_offset 612) main_length), 73501#(<= (+ main_offset 600) main_length), 73500#(<= (+ main_offset 604) main_length), 73503#(<= (+ main_offset 592) main_length), 73502#(<= (+ main_offset 596) main_length), 73505#(<= (+ main_offset 584) main_length), 73504#(<= (+ main_offset 588) main_length), 73507#(<= (+ main_offset 576) main_length), 73506#(<= (+ main_offset 580) main_length), 73509#(<= (+ main_offset 568) main_length), 73508#(<= (+ main_offset 572) main_length), 73511#(<= (+ main_offset 560) main_length), 73510#(<= (+ main_offset 564) main_length), 73513#(<= (+ main_offset 552) main_length), 73512#(<= (+ main_offset 556) main_length), 73514#(<= (+ main_offset 548) main_length), 73387#true, 73389#(<= (+ main_offset 1048) main_length), 73388#false, 73391#(<= (+ main_offset 1040) main_length), 73390#(<= (+ main_offset 1044) main_length), 73393#(<= (+ main_offset 1032) main_length), 73392#(<= (+ main_offset 1036) main_length), 73395#(<= (+ main_offset 1024) main_length), 73394#(<= (+ main_offset 1028) main_length), 73397#(<= (+ main_offset 1016) main_length), 73396#(<= (+ main_offset 1020) main_length), 73399#(<= (+ main_offset 1008) main_length), 73398#(<= (+ main_offset 1012) main_length), 73401#(<= (+ main_offset 1000) main_length), 73400#(<= (+ main_offset 1004) main_length), 73403#(<= (+ main_offset 992) main_length), 73402#(<= (+ main_offset 996) main_length), 73405#(<= (+ main_offset 984) main_length), 73404#(<= (+ main_offset 988) main_length), 73407#(<= (+ main_offset 976) main_length), 73406#(<= (+ main_offset 980) main_length), 73409#(<= (+ main_offset 968) main_length), 73408#(<= (+ main_offset 972) main_length), 73411#(<= (+ main_offset 960) main_length), 73410#(<= (+ main_offset 964) main_length), 73413#(<= (+ main_offset 952) main_length), 73412#(<= (+ main_offset 956) main_length), 73415#(<= (+ main_offset 944) main_length), 73414#(<= (+ main_offset 948) main_length), 73417#(<= (+ main_offset 936) main_length), 73416#(<= (+ main_offset 940) main_length), 73419#(<= (+ main_offset 928) main_length), 73418#(<= (+ main_offset 932) main_length), 73421#(<= (+ main_offset 920) main_length), 73420#(<= (+ main_offset 924) main_length), 73423#(<= (+ main_offset 912) main_length), 73422#(<= (+ main_offset 916) main_length), 73425#(<= (+ main_offset 904) main_length), 73424#(<= (+ main_offset 908) main_length), 73427#(<= (+ main_offset 896) main_length), 73426#(<= (+ main_offset 900) main_length), 73429#(<= (+ main_offset 888) main_length), 73428#(<= (+ main_offset 892) main_length), 73431#(<= (+ main_offset 880) main_length), 73430#(<= (+ main_offset 884) main_length), 73433#(<= (+ main_offset 872) main_length), 73432#(<= (+ main_offset 876) main_length), 73435#(<= (+ main_offset 864) main_length), 73434#(<= (+ main_offset 868) main_length), 73437#(<= (+ main_offset 856) main_length), 73436#(<= (+ main_offset 860) main_length), 73439#(<= (+ main_offset 848) main_length), 73438#(<= (+ main_offset 852) main_length), 73441#(<= (+ main_offset 840) main_length), 73440#(<= (+ main_offset 844) main_length), 73443#(<= (+ main_offset 832) main_length), 73442#(<= (+ main_offset 836) main_length), 73445#(<= (+ main_offset 824) main_length), 73444#(<= (+ main_offset 828) main_length), 73447#(<= (+ main_offset 816) main_length), 73446#(<= (+ main_offset 820) main_length), 73449#(<= (+ main_offset 808) main_length), 73448#(<= (+ main_offset 812) main_length), 73451#(<= (+ main_offset 800) main_length), 73450#(<= (+ main_offset 804) main_length), 73453#(<= (+ main_offset 792) main_length), 73452#(<= (+ main_offset 796) main_length), 73455#(<= (+ main_offset 784) main_length), 73454#(<= (+ main_offset 788) main_length), 73457#(<= (+ main_offset 776) main_length), 73456#(<= (+ main_offset 780) main_length), 73459#(<= (+ main_offset 768) main_length), 73458#(<= (+ main_offset 772) main_length), 73461#(<= (+ main_offset 760) main_length), 73460#(<= (+ main_offset 764) main_length), 73463#(<= (+ main_offset 752) main_length), 73462#(<= (+ main_offset 756) main_length), 73465#(<= (+ main_offset 744) main_length), 73464#(<= (+ main_offset 748) main_length), 73467#(<= (+ main_offset 736) main_length), 73466#(<= (+ main_offset 740) main_length), 73469#(<= (+ main_offset 728) main_length), 73468#(<= (+ main_offset 732) main_length), 73471#(<= (+ main_offset 720) main_length), 73470#(<= (+ main_offset 724) main_length)] [2018-07-23 13:52:28,943 INFO L134 CoverageAnalysis]: Checked inductivity of 15750 backedges. 0 proven. 15750 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:28,943 INFO L450 AbstractCegarLoop]: Interpolant automaton has 128 states [2018-07-23 13:52:28,944 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2018-07-23 13:52:28,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:52:28,945 INFO L87 Difference]: Start difference. First operand 254 states and 254 transitions. Second operand 128 states. [2018-07-23 13:52:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:29,076 INFO L93 Difference]: Finished difference Result 257 states and 257 transitions. [2018-07-23 13:52:29,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-07-23 13:52:29,076 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 253 [2018-07-23 13:52:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:29,077 INFO L225 Difference]: With dead ends: 257 [2018-07-23 13:52:29,077 INFO L226 Difference]: Without dead ends: 256 [2018-07-23 13:52:29,078 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2018-07-23 13:52:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-07-23 13:52:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2018-07-23 13:52:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-07-23 13:52:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2018-07-23 13:52:29,084 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 253 [2018-07-23 13:52:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:29,084 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2018-07-23 13:52:29,084 INFO L472 AbstractCegarLoop]: Interpolant automaton has 128 states. [2018-07-23 13:52:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2018-07-23 13:52:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-07-23 13:52:29,085 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:29,086 INFO L357 BasicCegarLoop]: trace histogram [127, 126, 1, 1] [2018-07-23 13:52:29,086 INFO L414 AbstractCegarLoop]: === Iteration 127 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:29,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1054213084, now seen corresponding path program 126 times [2018-07-23 13:52:29,086 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 16002 backedges. 0 proven. 16002 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,819 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:29,819 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2018-07-23 13:52:29,819 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:29,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,820 INFO L185 omatonBuilderFactory]: Interpolants [74541#true, 74543#(<= (+ main_offset 1048) main_length), 74542#false, 74545#(<= (+ main_offset 1040) main_length), 74544#(<= (+ main_offset 1044) main_length), 74547#(<= (+ main_offset 1032) main_length), 74546#(<= (+ main_offset 1036) main_length), 74549#(<= (+ main_offset 1024) main_length), 74548#(<= (+ main_offset 1028) main_length), 74551#(<= (+ main_offset 1016) main_length), 74550#(<= (+ main_offset 1020) main_length), 74553#(<= (+ main_offset 1008) main_length), 74552#(<= (+ main_offset 1012) main_length), 74555#(<= (+ main_offset 1000) main_length), 74554#(<= (+ main_offset 1004) main_length), 74557#(<= (+ main_offset 992) main_length), 74556#(<= (+ main_offset 996) main_length), 74559#(<= (+ main_offset 984) main_length), 74558#(<= (+ main_offset 988) main_length), 74561#(<= (+ main_offset 976) main_length), 74560#(<= (+ main_offset 980) main_length), 74563#(<= (+ main_offset 968) main_length), 74562#(<= (+ main_offset 972) main_length), 74565#(<= (+ main_offset 960) main_length), 74564#(<= (+ main_offset 964) main_length), 74567#(<= (+ main_offset 952) main_length), 74566#(<= (+ main_offset 956) main_length), 74569#(<= (+ main_offset 944) main_length), 74568#(<= (+ main_offset 948) main_length), 74571#(<= (+ main_offset 936) main_length), 74570#(<= (+ main_offset 940) main_length), 74573#(<= (+ main_offset 928) main_length), 74572#(<= (+ main_offset 932) main_length), 74575#(<= (+ main_offset 920) main_length), 74574#(<= (+ main_offset 924) main_length), 74577#(<= (+ main_offset 912) main_length), 74576#(<= (+ main_offset 916) main_length), 74579#(<= (+ main_offset 904) main_length), 74578#(<= (+ main_offset 908) main_length), 74581#(<= (+ main_offset 896) main_length), 74580#(<= (+ main_offset 900) main_length), 74583#(<= (+ main_offset 888) main_length), 74582#(<= (+ main_offset 892) main_length), 74585#(<= (+ main_offset 880) main_length), 74584#(<= (+ main_offset 884) main_length), 74587#(<= (+ main_offset 872) main_length), 74586#(<= (+ main_offset 876) main_length), 74589#(<= (+ main_offset 864) main_length), 74588#(<= (+ main_offset 868) main_length), 74591#(<= (+ main_offset 856) main_length), 74590#(<= (+ main_offset 860) main_length), 74593#(<= (+ main_offset 848) main_length), 74592#(<= (+ main_offset 852) main_length), 74595#(<= (+ main_offset 840) main_length), 74594#(<= (+ main_offset 844) main_length), 74597#(<= (+ main_offset 832) main_length), 74596#(<= (+ main_offset 836) main_length), 74599#(<= (+ main_offset 824) main_length), 74598#(<= (+ main_offset 828) main_length), 74601#(<= (+ main_offset 816) main_length), 74600#(<= (+ main_offset 820) main_length), 74603#(<= (+ main_offset 808) main_length), 74602#(<= (+ main_offset 812) main_length), 74605#(<= (+ main_offset 800) main_length), 74604#(<= (+ main_offset 804) main_length), 74607#(<= (+ main_offset 792) main_length), 74606#(<= (+ main_offset 796) main_length), 74609#(<= (+ main_offset 784) main_length), 74608#(<= (+ main_offset 788) main_length), 74611#(<= (+ main_offset 776) main_length), 74610#(<= (+ main_offset 780) main_length), 74613#(<= (+ main_offset 768) main_length), 74612#(<= (+ main_offset 772) main_length), 74615#(<= (+ main_offset 760) main_length), 74614#(<= (+ main_offset 764) main_length), 74617#(<= (+ main_offset 752) main_length), 74616#(<= (+ main_offset 756) main_length), 74619#(<= (+ main_offset 744) main_length), 74618#(<= (+ main_offset 748) main_length), 74621#(<= (+ main_offset 736) main_length), 74620#(<= (+ main_offset 740) main_length), 74623#(<= (+ main_offset 728) main_length), 74622#(<= (+ main_offset 732) main_length), 74625#(<= (+ main_offset 720) main_length), 74624#(<= (+ main_offset 724) main_length), 74627#(<= (+ main_offset 712) main_length), 74626#(<= (+ main_offset 716) main_length), 74629#(<= (+ main_offset 704) main_length), 74628#(<= (+ main_offset 708) main_length), 74631#(<= (+ main_offset 696) main_length), 74630#(<= (+ main_offset 700) main_length), 74633#(<= (+ main_offset 688) main_length), 74632#(<= (+ main_offset 692) main_length), 74635#(<= (+ main_offset 680) main_length), 74634#(<= (+ main_offset 684) main_length), 74637#(<= (+ main_offset 672) main_length), 74636#(<= (+ main_offset 676) main_length), 74639#(<= (+ main_offset 664) main_length), 74638#(<= (+ main_offset 668) main_length), 74641#(<= (+ main_offset 656) main_length), 74640#(<= (+ main_offset 660) main_length), 74643#(<= (+ main_offset 648) main_length), 74642#(<= (+ main_offset 652) main_length), 74645#(<= (+ main_offset 640) main_length), 74644#(<= (+ main_offset 644) main_length), 74647#(<= (+ main_offset 632) main_length), 74646#(<= (+ main_offset 636) main_length), 74649#(<= (+ main_offset 624) main_length), 74648#(<= (+ main_offset 628) main_length), 74651#(<= (+ main_offset 616) main_length), 74650#(<= (+ main_offset 620) main_length), 74653#(<= (+ main_offset 608) main_length), 74652#(<= (+ main_offset 612) main_length), 74655#(<= (+ main_offset 600) main_length), 74654#(<= (+ main_offset 604) main_length), 74657#(<= (+ main_offset 592) main_length), 74656#(<= (+ main_offset 596) main_length), 74659#(<= (+ main_offset 584) main_length), 74658#(<= (+ main_offset 588) main_length), 74661#(<= (+ main_offset 576) main_length), 74660#(<= (+ main_offset 580) main_length), 74663#(<= (+ main_offset 568) main_length), 74662#(<= (+ main_offset 572) main_length), 74665#(<= (+ main_offset 560) main_length), 74664#(<= (+ main_offset 564) main_length), 74667#(<= (+ main_offset 552) main_length), 74666#(<= (+ main_offset 556) main_length), 74669#(<= (+ main_offset 544) main_length), 74668#(<= (+ main_offset 548) main_length)] [2018-07-23 13:52:29,821 INFO L134 CoverageAnalysis]: Checked inductivity of 16002 backedges. 0 proven. 16002 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:29,821 INFO L450 AbstractCegarLoop]: Interpolant automaton has 129 states [2018-07-23 13:52:29,822 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2018-07-23 13:52:29,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:52:29,823 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand 129 states. [2018-07-23 13:52:30,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,105 INFO L93 Difference]: Finished difference Result 259 states and 259 transitions. [2018-07-23 13:52:30,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2018-07-23 13:52:30,105 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 255 [2018-07-23 13:52:30,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,106 INFO L225 Difference]: With dead ends: 259 [2018-07-23 13:52:30,106 INFO L226 Difference]: Without dead ends: 258 [2018-07-23 13:52:30,107 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2018-07-23 13:52:30,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-07-23 13:52:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2018-07-23 13:52:30,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-07-23 13:52:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2018-07-23 13:52:30,112 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 255 [2018-07-23 13:52:30,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,112 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2018-07-23 13:52:30,112 INFO L472 AbstractCegarLoop]: Interpolant automaton has 129 states. [2018-07-23 13:52:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2018-07-23 13:52:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-07-23 13:52:30,114 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,114 INFO L357 BasicCegarLoop]: trace histogram [128, 127, 1, 1] [2018-07-23 13:52:30,114 INFO L414 AbstractCegarLoop]: === Iteration 128 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,114 INFO L82 PathProgramCache]: Analyzing trace with hash -513507042, now seen corresponding path program 127 times [2018-07-23 13:52:30,114 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16256 backedges. 0 proven. 16256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,732 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:30,732 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2018-07-23 13:52:30,732 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,733 INFO L185 omatonBuilderFactory]: Interpolants [75777#(<= (+ main_offset 764) main_length), 75776#(<= (+ main_offset 768) main_length), 75779#(<= (+ main_offset 756) main_length), 75778#(<= (+ main_offset 760) main_length), 75781#(<= (+ main_offset 748) main_length), 75780#(<= (+ main_offset 752) main_length), 75783#(<= (+ main_offset 740) main_length), 75782#(<= (+ main_offset 744) main_length), 75785#(<= (+ main_offset 732) main_length), 75784#(<= (+ main_offset 736) main_length), 75787#(<= (+ main_offset 724) main_length), 75786#(<= (+ main_offset 728) main_length), 75789#(<= (+ main_offset 716) main_length), 75788#(<= (+ main_offset 720) main_length), 75791#(<= (+ main_offset 708) main_length), 75790#(<= (+ main_offset 712) main_length), 75793#(<= (+ main_offset 700) main_length), 75792#(<= (+ main_offset 704) main_length), 75795#(<= (+ main_offset 692) main_length), 75794#(<= (+ main_offset 696) main_length), 75797#(<= (+ main_offset 684) main_length), 75796#(<= (+ main_offset 688) main_length), 75799#(<= (+ main_offset 676) main_length), 75798#(<= (+ main_offset 680) main_length), 75801#(<= (+ main_offset 668) main_length), 75800#(<= (+ main_offset 672) main_length), 75803#(<= (+ main_offset 660) main_length), 75802#(<= (+ main_offset 664) main_length), 75805#(<= (+ main_offset 652) main_length), 75804#(<= (+ main_offset 656) main_length), 75807#(<= (+ main_offset 644) main_length), 75806#(<= (+ main_offset 648) main_length), 75809#(<= (+ main_offset 636) main_length), 75808#(<= (+ main_offset 640) main_length), 75811#(<= (+ main_offset 628) main_length), 75810#(<= (+ main_offset 632) main_length), 75813#(<= (+ main_offset 620) main_length), 75812#(<= (+ main_offset 624) main_length), 75815#(<= (+ main_offset 612) main_length), 75814#(<= (+ main_offset 616) main_length), 75817#(<= (+ main_offset 604) main_length), 75816#(<= (+ main_offset 608) main_length), 75819#(<= (+ main_offset 596) main_length), 75818#(<= (+ main_offset 600) main_length), 75821#(<= (+ main_offset 588) main_length), 75820#(<= (+ main_offset 592) main_length), 75823#(<= (+ main_offset 580) main_length), 75822#(<= (+ main_offset 584) main_length), 75825#(<= (+ main_offset 572) main_length), 75824#(<= (+ main_offset 576) main_length), 75827#(<= (+ main_offset 564) main_length), 75826#(<= (+ main_offset 568) main_length), 75829#(<= (+ main_offset 556) main_length), 75828#(<= (+ main_offset 560) main_length), 75831#(<= (+ main_offset 548) main_length), 75830#(<= (+ main_offset 552) main_length), 75833#(<= (+ main_offset 540) main_length), 75832#(<= (+ main_offset 544) main_length), 75705#false, 75704#true, 75707#(<= (+ main_offset 1044) main_length), 75706#(<= (+ main_offset 1048) main_length), 75709#(<= (+ main_offset 1036) main_length), 75708#(<= (+ main_offset 1040) main_length), 75711#(<= (+ main_offset 1028) main_length), 75710#(<= (+ main_offset 1032) main_length), 75713#(<= (+ main_offset 1020) main_length), 75712#(<= (+ main_offset 1024) main_length), 75715#(<= (+ main_offset 1012) main_length), 75714#(<= (+ main_offset 1016) main_length), 75717#(<= (+ main_offset 1004) main_length), 75716#(<= (+ main_offset 1008) main_length), 75719#(<= (+ main_offset 996) main_length), 75718#(<= (+ main_offset 1000) main_length), 75721#(<= (+ main_offset 988) main_length), 75720#(<= (+ main_offset 992) main_length), 75723#(<= (+ main_offset 980) main_length), 75722#(<= (+ main_offset 984) main_length), 75725#(<= (+ main_offset 972) main_length), 75724#(<= (+ main_offset 976) main_length), 75727#(<= (+ main_offset 964) main_length), 75726#(<= (+ main_offset 968) main_length), 75729#(<= (+ main_offset 956) main_length), 75728#(<= (+ main_offset 960) main_length), 75731#(<= (+ main_offset 948) main_length), 75730#(<= (+ main_offset 952) main_length), 75733#(<= (+ main_offset 940) main_length), 75732#(<= (+ main_offset 944) main_length), 75735#(<= (+ main_offset 932) main_length), 75734#(<= (+ main_offset 936) main_length), 75737#(<= (+ main_offset 924) main_length), 75736#(<= (+ main_offset 928) main_length), 75739#(<= (+ main_offset 916) main_length), 75738#(<= (+ main_offset 920) main_length), 75741#(<= (+ main_offset 908) main_length), 75740#(<= (+ main_offset 912) main_length), 75743#(<= (+ main_offset 900) main_length), 75742#(<= (+ main_offset 904) main_length), 75745#(<= (+ main_offset 892) main_length), 75744#(<= (+ main_offset 896) main_length), 75747#(<= (+ main_offset 884) main_length), 75746#(<= (+ main_offset 888) main_length), 75749#(<= (+ main_offset 876) main_length), 75748#(<= (+ main_offset 880) main_length), 75751#(<= (+ main_offset 868) main_length), 75750#(<= (+ main_offset 872) main_length), 75753#(<= (+ main_offset 860) main_length), 75752#(<= (+ main_offset 864) main_length), 75755#(<= (+ main_offset 852) main_length), 75754#(<= (+ main_offset 856) main_length), 75757#(<= (+ main_offset 844) main_length), 75756#(<= (+ main_offset 848) main_length), 75759#(<= (+ main_offset 836) main_length), 75758#(<= (+ main_offset 840) main_length), 75761#(<= (+ main_offset 828) main_length), 75760#(<= (+ main_offset 832) main_length), 75763#(<= (+ main_offset 820) main_length), 75762#(<= (+ main_offset 824) main_length), 75765#(<= (+ main_offset 812) main_length), 75764#(<= (+ main_offset 816) main_length), 75767#(<= (+ main_offset 804) main_length), 75766#(<= (+ main_offset 808) main_length), 75769#(<= (+ main_offset 796) main_length), 75768#(<= (+ main_offset 800) main_length), 75771#(<= (+ main_offset 788) main_length), 75770#(<= (+ main_offset 792) main_length), 75773#(<= (+ main_offset 780) main_length), 75772#(<= (+ main_offset 784) main_length), 75775#(<= (+ main_offset 772) main_length), 75774#(<= (+ main_offset 776) main_length)] [2018-07-23 13:52:30,734 INFO L134 CoverageAnalysis]: Checked inductivity of 16256 backedges. 0 proven. 16256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:30,735 INFO L450 AbstractCegarLoop]: Interpolant automaton has 130 states [2018-07-23 13:52:30,736 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2018-07-23 13:52:30,737 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:52:30,737 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 130 states. [2018-07-23 13:52:30,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:30,867 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2018-07-23 13:52:30,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2018-07-23 13:52:30,867 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 257 [2018-07-23 13:52:30,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:30,868 INFO L225 Difference]: With dead ends: 261 [2018-07-23 13:52:30,868 INFO L226 Difference]: Without dead ends: 260 [2018-07-23 13:52:30,869 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2018-07-23 13:52:30,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-07-23 13:52:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2018-07-23 13:52:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2018-07-23 13:52:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2018-07-23 13:52:30,874 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 257 [2018-07-23 13:52:30,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:30,874 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2018-07-23 13:52:30,874 INFO L472 AbstractCegarLoop]: Interpolant automaton has 130 states. [2018-07-23 13:52:30,875 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2018-07-23 13:52:30,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-07-23 13:52:30,875 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:30,876 INFO L357 BasicCegarLoop]: trace histogram [129, 128, 1, 1] [2018-07-23 13:52:30,876 INFO L414 AbstractCegarLoop]: === Iteration 129 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:30,876 INFO L82 PathProgramCache]: Analyzing trace with hash 440972768, now seen corresponding path program 128 times [2018-07-23 13:52:30,876 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 16512 backedges. 0 proven. 16512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,452 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:31,452 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2018-07-23 13:52:31,452 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,453 INFO L185 omatonBuilderFactory]: Interpolants [76877#false, 76876#true, 76879#(<= (+ main_offset 1044) main_length), 76878#(<= (+ main_offset 1048) main_length), 76881#(<= (+ main_offset 1036) main_length), 76880#(<= (+ main_offset 1040) main_length), 76883#(<= (+ main_offset 1028) main_length), 76882#(<= (+ main_offset 1032) main_length), 76885#(<= (+ main_offset 1020) main_length), 76884#(<= (+ main_offset 1024) main_length), 76887#(<= (+ main_offset 1012) main_length), 76886#(<= (+ main_offset 1016) main_length), 76889#(<= (+ main_offset 1004) main_length), 76888#(<= (+ main_offset 1008) main_length), 76891#(<= (+ main_offset 996) main_length), 76890#(<= (+ main_offset 1000) main_length), 76893#(<= (+ main_offset 988) main_length), 76892#(<= (+ main_offset 992) main_length), 76895#(<= (+ main_offset 980) main_length), 76894#(<= (+ main_offset 984) main_length), 76897#(<= (+ main_offset 972) main_length), 76896#(<= (+ main_offset 976) main_length), 76899#(<= (+ main_offset 964) main_length), 76898#(<= (+ main_offset 968) main_length), 76901#(<= (+ main_offset 956) main_length), 76900#(<= (+ main_offset 960) main_length), 76903#(<= (+ main_offset 948) main_length), 76902#(<= (+ main_offset 952) main_length), 76905#(<= (+ main_offset 940) main_length), 76904#(<= (+ main_offset 944) main_length), 76907#(<= (+ main_offset 932) main_length), 76906#(<= (+ main_offset 936) main_length), 76909#(<= (+ main_offset 924) main_length), 76908#(<= (+ main_offset 928) main_length), 76911#(<= (+ main_offset 916) main_length), 76910#(<= (+ main_offset 920) main_length), 76913#(<= (+ main_offset 908) main_length), 76912#(<= (+ main_offset 912) main_length), 76915#(<= (+ main_offset 900) main_length), 76914#(<= (+ main_offset 904) main_length), 76917#(<= (+ main_offset 892) main_length), 76916#(<= (+ main_offset 896) main_length), 76919#(<= (+ main_offset 884) main_length), 76918#(<= (+ main_offset 888) main_length), 76921#(<= (+ main_offset 876) main_length), 76920#(<= (+ main_offset 880) main_length), 76923#(<= (+ main_offset 868) main_length), 76922#(<= (+ main_offset 872) main_length), 76925#(<= (+ main_offset 860) main_length), 76924#(<= (+ main_offset 864) main_length), 76927#(<= (+ main_offset 852) main_length), 76926#(<= (+ main_offset 856) main_length), 76929#(<= (+ main_offset 844) main_length), 76928#(<= (+ main_offset 848) main_length), 76931#(<= (+ main_offset 836) main_length), 76930#(<= (+ main_offset 840) main_length), 76933#(<= (+ main_offset 828) main_length), 76932#(<= (+ main_offset 832) main_length), 76935#(<= (+ main_offset 820) main_length), 76934#(<= (+ main_offset 824) main_length), 76937#(<= (+ main_offset 812) main_length), 76936#(<= (+ main_offset 816) main_length), 76939#(<= (+ main_offset 804) main_length), 76938#(<= (+ main_offset 808) main_length), 76941#(<= (+ main_offset 796) main_length), 76940#(<= (+ main_offset 800) main_length), 76943#(<= (+ main_offset 788) main_length), 76942#(<= (+ main_offset 792) main_length), 76945#(<= (+ main_offset 780) main_length), 76944#(<= (+ main_offset 784) main_length), 76947#(<= (+ main_offset 772) main_length), 76946#(<= (+ main_offset 776) main_length), 76949#(<= (+ main_offset 764) main_length), 76948#(<= (+ main_offset 768) main_length), 76951#(<= (+ main_offset 756) main_length), 76950#(<= (+ main_offset 760) main_length), 76953#(<= (+ main_offset 748) main_length), 76952#(<= (+ main_offset 752) main_length), 76955#(<= (+ main_offset 740) main_length), 76954#(<= (+ main_offset 744) main_length), 76957#(<= (+ main_offset 732) main_length), 76956#(<= (+ main_offset 736) main_length), 76959#(<= (+ main_offset 724) main_length), 76958#(<= (+ main_offset 728) main_length), 76961#(<= (+ main_offset 716) main_length), 76960#(<= (+ main_offset 720) main_length), 76963#(<= (+ main_offset 708) main_length), 76962#(<= (+ main_offset 712) main_length), 76965#(<= (+ main_offset 700) main_length), 76964#(<= (+ main_offset 704) main_length), 76967#(<= (+ main_offset 692) main_length), 76966#(<= (+ main_offset 696) main_length), 76969#(<= (+ main_offset 684) main_length), 76968#(<= (+ main_offset 688) main_length), 76971#(<= (+ main_offset 676) main_length), 76970#(<= (+ main_offset 680) main_length), 76973#(<= (+ main_offset 668) main_length), 76972#(<= (+ main_offset 672) main_length), 76975#(<= (+ main_offset 660) main_length), 76974#(<= (+ main_offset 664) main_length), 76977#(<= (+ main_offset 652) main_length), 76976#(<= (+ main_offset 656) main_length), 76979#(<= (+ main_offset 644) main_length), 76978#(<= (+ main_offset 648) main_length), 76981#(<= (+ main_offset 636) main_length), 76980#(<= (+ main_offset 640) main_length), 76983#(<= (+ main_offset 628) main_length), 76982#(<= (+ main_offset 632) main_length), 76985#(<= (+ main_offset 620) main_length), 76984#(<= (+ main_offset 624) main_length), 76987#(<= (+ main_offset 612) main_length), 76986#(<= (+ main_offset 616) main_length), 76989#(<= (+ main_offset 604) main_length), 76988#(<= (+ main_offset 608) main_length), 76991#(<= (+ main_offset 596) main_length), 76990#(<= (+ main_offset 600) main_length), 76993#(<= (+ main_offset 588) main_length), 76992#(<= (+ main_offset 592) main_length), 76995#(<= (+ main_offset 580) main_length), 76994#(<= (+ main_offset 584) main_length), 76997#(<= (+ main_offset 572) main_length), 76996#(<= (+ main_offset 576) main_length), 76999#(<= (+ main_offset 564) main_length), 76998#(<= (+ main_offset 568) main_length), 77001#(<= (+ main_offset 556) main_length), 77000#(<= (+ main_offset 560) main_length), 77003#(<= (+ main_offset 548) main_length), 77002#(<= (+ main_offset 552) main_length), 77005#(<= (+ main_offset 540) main_length), 77004#(<= (+ main_offset 544) main_length), 77006#(<= (+ main_offset 536) main_length)] [2018-07-23 13:52:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 16512 backedges. 0 proven. 16512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:31,454 INFO L450 AbstractCegarLoop]: Interpolant automaton has 131 states [2018-07-23 13:52:31,455 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2018-07-23 13:52:31,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:52:31,456 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand 131 states. [2018-07-23 13:52:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:31,763 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2018-07-23 13:52:31,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2018-07-23 13:52:31,763 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 259 [2018-07-23 13:52:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:31,764 INFO L225 Difference]: With dead ends: 263 [2018-07-23 13:52:31,764 INFO L226 Difference]: Without dead ends: 262 [2018-07-23 13:52:31,765 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2018-07-23 13:52:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-07-23 13:52:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-07-23 13:52:31,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-07-23 13:52:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 262 transitions. [2018-07-23 13:52:31,769 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 262 transitions. Word has length 259 [2018-07-23 13:52:31,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:31,769 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 262 transitions. [2018-07-23 13:52:31,769 INFO L472 AbstractCegarLoop]: Interpolant automaton has 131 states. [2018-07-23 13:52:31,769 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 262 transitions. [2018-07-23 13:52:31,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-23 13:52:31,770 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:31,770 INFO L357 BasicCegarLoop]: trace histogram [130, 129, 1, 1] [2018-07-23 13:52:31,770 INFO L414 AbstractCegarLoop]: === Iteration 130 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:31,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1426931166, now seen corresponding path program 129 times [2018-07-23 13:52:31,770 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16770 backedges. 0 proven. 16770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,388 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:32,388 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2018-07-23 13:52:32,388 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,389 INFO L185 omatonBuilderFactory]: Interpolants [78081#(<= (+ main_offset 960) main_length), 78080#(<= (+ main_offset 964) main_length), 78083#(<= (+ main_offset 952) main_length), 78082#(<= (+ main_offset 956) main_length), 78085#(<= (+ main_offset 944) main_length), 78084#(<= (+ main_offset 948) main_length), 78087#(<= (+ main_offset 936) main_length), 78086#(<= (+ main_offset 940) main_length), 78089#(<= (+ main_offset 928) main_length), 78088#(<= (+ main_offset 932) main_length), 78091#(<= (+ main_offset 920) main_length), 78090#(<= (+ main_offset 924) main_length), 78093#(<= (+ main_offset 912) main_length), 78092#(<= (+ main_offset 916) main_length), 78095#(<= (+ main_offset 904) main_length), 78094#(<= (+ main_offset 908) main_length), 78097#(<= (+ main_offset 896) main_length), 78096#(<= (+ main_offset 900) main_length), 78099#(<= (+ main_offset 888) main_length), 78098#(<= (+ main_offset 892) main_length), 78101#(<= (+ main_offset 880) main_length), 78100#(<= (+ main_offset 884) main_length), 78103#(<= (+ main_offset 872) main_length), 78102#(<= (+ main_offset 876) main_length), 78105#(<= (+ main_offset 864) main_length), 78104#(<= (+ main_offset 868) main_length), 78107#(<= (+ main_offset 856) main_length), 78106#(<= (+ main_offset 860) main_length), 78109#(<= (+ main_offset 848) main_length), 78108#(<= (+ main_offset 852) main_length), 78111#(<= (+ main_offset 840) main_length), 78110#(<= (+ main_offset 844) main_length), 78113#(<= (+ main_offset 832) main_length), 78112#(<= (+ main_offset 836) main_length), 78115#(<= (+ main_offset 824) main_length), 78114#(<= (+ main_offset 828) main_length), 78117#(<= (+ main_offset 816) main_length), 78116#(<= (+ main_offset 820) main_length), 78119#(<= (+ main_offset 808) main_length), 78118#(<= (+ main_offset 812) main_length), 78121#(<= (+ main_offset 800) main_length), 78120#(<= (+ main_offset 804) main_length), 78123#(<= (+ main_offset 792) main_length), 78122#(<= (+ main_offset 796) main_length), 78125#(<= (+ main_offset 784) main_length), 78124#(<= (+ main_offset 788) main_length), 78127#(<= (+ main_offset 776) main_length), 78126#(<= (+ main_offset 780) main_length), 78129#(<= (+ main_offset 768) main_length), 78128#(<= (+ main_offset 772) main_length), 78131#(<= (+ main_offset 760) main_length), 78130#(<= (+ main_offset 764) main_length), 78133#(<= (+ main_offset 752) main_length), 78132#(<= (+ main_offset 756) main_length), 78135#(<= (+ main_offset 744) main_length), 78134#(<= (+ main_offset 748) main_length), 78137#(<= (+ main_offset 736) main_length), 78136#(<= (+ main_offset 740) main_length), 78139#(<= (+ main_offset 728) main_length), 78138#(<= (+ main_offset 732) main_length), 78141#(<= (+ main_offset 720) main_length), 78140#(<= (+ main_offset 724) main_length), 78143#(<= (+ main_offset 712) main_length), 78142#(<= (+ main_offset 716) main_length), 78145#(<= (+ main_offset 704) main_length), 78144#(<= (+ main_offset 708) main_length), 78147#(<= (+ main_offset 696) main_length), 78146#(<= (+ main_offset 700) main_length), 78149#(<= (+ main_offset 688) main_length), 78148#(<= (+ main_offset 692) main_length), 78151#(<= (+ main_offset 680) main_length), 78150#(<= (+ main_offset 684) main_length), 78153#(<= (+ main_offset 672) main_length), 78152#(<= (+ main_offset 676) main_length), 78155#(<= (+ main_offset 664) main_length), 78154#(<= (+ main_offset 668) main_length), 78157#(<= (+ main_offset 656) main_length), 78156#(<= (+ main_offset 660) main_length), 78159#(<= (+ main_offset 648) main_length), 78158#(<= (+ main_offset 652) main_length), 78161#(<= (+ main_offset 640) main_length), 78160#(<= (+ main_offset 644) main_length), 78163#(<= (+ main_offset 632) main_length), 78162#(<= (+ main_offset 636) main_length), 78165#(<= (+ main_offset 624) main_length), 78164#(<= (+ main_offset 628) main_length), 78167#(<= (+ main_offset 616) main_length), 78166#(<= (+ main_offset 620) main_length), 78169#(<= (+ main_offset 608) main_length), 78168#(<= (+ main_offset 612) main_length), 78171#(<= (+ main_offset 600) main_length), 78170#(<= (+ main_offset 604) main_length), 78173#(<= (+ main_offset 592) main_length), 78172#(<= (+ main_offset 596) main_length), 78175#(<= (+ main_offset 584) main_length), 78174#(<= (+ main_offset 588) main_length), 78177#(<= (+ main_offset 576) main_length), 78176#(<= (+ main_offset 580) main_length), 78179#(<= (+ main_offset 568) main_length), 78178#(<= (+ main_offset 572) main_length), 78181#(<= (+ main_offset 560) main_length), 78180#(<= (+ main_offset 564) main_length), 78183#(<= (+ main_offset 552) main_length), 78182#(<= (+ main_offset 556) main_length), 78185#(<= (+ main_offset 544) main_length), 78184#(<= (+ main_offset 548) main_length), 78187#(<= (+ main_offset 536) main_length), 78186#(<= (+ main_offset 540) main_length), 78188#(<= (+ main_offset 532) main_length), 78057#true, 78059#(<= (+ main_offset 1048) main_length), 78058#false, 78061#(<= (+ main_offset 1040) main_length), 78060#(<= (+ main_offset 1044) main_length), 78063#(<= (+ main_offset 1032) main_length), 78062#(<= (+ main_offset 1036) main_length), 78065#(<= (+ main_offset 1024) main_length), 78064#(<= (+ main_offset 1028) main_length), 78067#(<= (+ main_offset 1016) main_length), 78066#(<= (+ main_offset 1020) main_length), 78069#(<= (+ main_offset 1008) main_length), 78068#(<= (+ main_offset 1012) main_length), 78071#(<= (+ main_offset 1000) main_length), 78070#(<= (+ main_offset 1004) main_length), 78073#(<= (+ main_offset 992) main_length), 78072#(<= (+ main_offset 996) main_length), 78075#(<= (+ main_offset 984) main_length), 78074#(<= (+ main_offset 988) main_length), 78077#(<= (+ main_offset 976) main_length), 78076#(<= (+ main_offset 980) main_length), 78079#(<= (+ main_offset 968) main_length), 78078#(<= (+ main_offset 972) main_length)] [2018-07-23 13:52:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 16770 backedges. 0 proven. 16770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:32,390 INFO L450 AbstractCegarLoop]: Interpolant automaton has 132 states [2018-07-23 13:52:32,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2018-07-23 13:52:32,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:52:32,392 INFO L87 Difference]: Start difference. First operand 262 states and 262 transitions. Second operand 132 states. [2018-07-23 13:52:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:32,728 INFO L93 Difference]: Finished difference Result 265 states and 265 transitions. [2018-07-23 13:52:32,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2018-07-23 13:52:32,728 INFO L78 Accepts]: Start accepts. Automaton has 132 states. Word has length 261 [2018-07-23 13:52:32,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:32,729 INFO L225 Difference]: With dead ends: 265 [2018-07-23 13:52:32,729 INFO L226 Difference]: Without dead ends: 264 [2018-07-23 13:52:32,730 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2018-07-23 13:52:32,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-07-23 13:52:32,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2018-07-23 13:52:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-07-23 13:52:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 264 transitions. [2018-07-23 13:52:32,733 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 264 transitions. Word has length 261 [2018-07-23 13:52:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:32,733 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 264 transitions. [2018-07-23 13:52:32,733 INFO L472 AbstractCegarLoop]: Interpolant automaton has 132 states. [2018-07-23 13:52:32,733 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 264 transitions. [2018-07-23 13:52:32,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-07-23 13:52:32,734 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:32,734 INFO L357 BasicCegarLoop]: trace histogram [131, 130, 1, 1] [2018-07-23 13:52:32,734 INFO L414 AbstractCegarLoop]: === Iteration 131 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:32,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1186282012, now seen corresponding path program 130 times [2018-07-23 13:52:32,735 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 17030 backedges. 0 proven. 17030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,374 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:33,374 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2018-07-23 13:52:33,375 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:33,375 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 13:52:33,375 INFO L185 omatonBuilderFactory]: Interpolants [79361#(<= (+ main_offset 600) main_length), 79360#(<= (+ main_offset 604) main_length), 79363#(<= (+ main_offset 592) main_length), 79362#(<= (+ main_offset 596) main_length), 79365#(<= (+ main_offset 584) main_length), 79364#(<= (+ main_offset 588) main_length), 79367#(<= (+ main_offset 576) main_length), 79366#(<= (+ main_offset 580) main_length), 79369#(<= (+ main_offset 568) main_length), 79368#(<= (+ main_offset 572) main_length), 79371#(<= (+ main_offset 560) main_length), 79370#(<= (+ main_offset 564) main_length), 79373#(<= (+ main_offset 552) main_length), 79372#(<= (+ main_offset 556) main_length), 79375#(<= (+ main_offset 544) main_length), 79374#(<= (+ main_offset 548) main_length), 79377#(<= (+ main_offset 536) main_length), 79376#(<= (+ main_offset 540) main_length), 79379#(<= (+ main_offset 528) main_length), 79378#(<= (+ main_offset 532) main_length), 79247#true, 79249#(<= (+ main_offset 1048) main_length), 79248#false, 79251#(<= (+ main_offset 1040) main_length), 79250#(<= (+ main_offset 1044) main_length), 79253#(<= (+ main_offset 1032) main_length), 79252#(<= (+ main_offset 1036) main_length), 79255#(<= (+ main_offset 1024) main_length), 79254#(<= (+ main_offset 1028) main_length), 79257#(<= (+ main_offset 1016) main_length), 79256#(<= (+ main_offset 1020) main_length), 79259#(<= (+ main_offset 1008) main_length), 79258#(<= (+ main_offset 1012) main_length), 79261#(<= (+ main_offset 1000) main_length), 79260#(<= (+ main_offset 1004) main_length), 79263#(<= (+ main_offset 992) main_length), 79262#(<= (+ main_offset 996) main_length), 79265#(<= (+ main_offset 984) main_length), 79264#(<= (+ main_offset 988) main_length), 79267#(<= (+ main_offset 976) main_length), 79266#(<= (+ main_offset 980) main_length), 79269#(<= (+ main_offset 968) main_length), 79268#(<= (+ main_offset 972) main_length), 79271#(<= (+ main_offset 960) main_length), 79270#(<= (+ main_offset 964) main_length), 79273#(<= (+ main_offset 952) main_length), 79272#(<= (+ main_offset 956) main_length), 79275#(<= (+ main_offset 944) main_length), 79274#(<= (+ main_offset 948) main_length), 79277#(<= (+ main_offset 936) main_length), 79276#(<= (+ main_offset 940) main_length), 79279#(<= (+ main_offset 928) main_length), 79278#(<= (+ main_offset 932) main_length), 79281#(<= (+ main_offset 920) main_length), 79280#(<= (+ main_offset 924) main_length), 79283#(<= (+ main_offset 912) main_length), 79282#(<= (+ main_offset 916) main_length), 79285#(<= (+ main_offset 904) main_length), 79284#(<= (+ main_offset 908) main_length), 79287#(<= (+ main_offset 896) main_length), 79286#(<= (+ main_offset 900) main_length), 79289#(<= (+ main_offset 888) main_length), 79288#(<= (+ main_offset 892) main_length), 79291#(<= (+ main_offset 880) main_length), 79290#(<= (+ main_offset 884) main_length), 79293#(<= (+ main_offset 872) main_length), 79292#(<= (+ main_offset 876) main_length), 79295#(<= (+ main_offset 864) main_length), 79294#(<= (+ main_offset 868) main_length), 79297#(<= (+ main_offset 856) main_length), 79296#(<= (+ main_offset 860) main_length), 79299#(<= (+ main_offset 848) main_length), 79298#(<= (+ main_offset 852) main_length), 79301#(<= (+ main_offset 840) main_length), 79300#(<= (+ main_offset 844) main_length), 79303#(<= (+ main_offset 832) main_length), 79302#(<= (+ main_offset 836) main_length), 79305#(<= (+ main_offset 824) main_length), 79304#(<= (+ main_offset 828) main_length), 79307#(<= (+ main_offset 816) main_length), 79306#(<= (+ main_offset 820) main_length), 79309#(<= (+ main_offset 808) main_length), 79308#(<= (+ main_offset 812) main_length), 79311#(<= (+ main_offset 800) main_length), 79310#(<= (+ main_offset 804) main_length), 79313#(<= (+ main_offset 792) main_length), 79312#(<= (+ main_offset 796) main_length), 79315#(<= (+ main_offset 784) main_length), 79314#(<= (+ main_offset 788) main_length), 79317#(<= (+ main_offset 776) main_length), 79316#(<= (+ main_offset 780) main_length), 79319#(<= (+ main_offset 768) main_length), 79318#(<= (+ main_offset 772) main_length), 79321#(<= (+ main_offset 760) main_length), 79320#(<= (+ main_offset 764) main_length), 79323#(<= (+ main_offset 752) main_length), 79322#(<= (+ main_offset 756) main_length), 79325#(<= (+ main_offset 744) main_length), 79324#(<= (+ main_offset 748) main_length), 79327#(<= (+ main_offset 736) main_length), 79326#(<= (+ main_offset 740) main_length), 79329#(<= (+ main_offset 728) main_length), 79328#(<= (+ main_offset 732) main_length), 79331#(<= (+ main_offset 720) main_length), 79330#(<= (+ main_offset 724) main_length), 79333#(<= (+ main_offset 712) main_length), 79332#(<= (+ main_offset 716) main_length), 79335#(<= (+ main_offset 704) main_length), 79334#(<= (+ main_offset 708) main_length), 79337#(<= (+ main_offset 696) main_length), 79336#(<= (+ main_offset 700) main_length), 79339#(<= (+ main_offset 688) main_length), 79338#(<= (+ main_offset 692) main_length), 79341#(<= (+ main_offset 680) main_length), 79340#(<= (+ main_offset 684) main_length), 79343#(<= (+ main_offset 672) main_length), 79342#(<= (+ main_offset 676) main_length), 79345#(<= (+ main_offset 664) main_length), 79344#(<= (+ main_offset 668) main_length), 79347#(<= (+ main_offset 656) main_length), 79346#(<= (+ main_offset 660) main_length), 79349#(<= (+ main_offset 648) main_length), 79348#(<= (+ main_offset 652) main_length), 79351#(<= (+ main_offset 640) main_length), 79350#(<= (+ main_offset 644) main_length), 79353#(<= (+ main_offset 632) main_length), 79352#(<= (+ main_offset 636) main_length), 79355#(<= (+ main_offset 624) main_length), 79354#(<= (+ main_offset 628) main_length), 79357#(<= (+ main_offset 616) main_length), 79356#(<= (+ main_offset 620) main_length), 79359#(<= (+ main_offset 608) main_length), 79358#(<= (+ main_offset 612) main_length)] [2018-07-23 13:52:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 17030 backedges. 0 proven. 17030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:33,376 INFO L450 AbstractCegarLoop]: Interpolant automaton has 133 states [2018-07-23 13:52:33,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2018-07-23 13:52:33,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:52:33,377 INFO L87 Difference]: Start difference. First operand 264 states and 264 transitions. Second operand 133 states. [2018-07-23 13:52:33,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:33,624 INFO L93 Difference]: Finished difference Result 267 states and 267 transitions. [2018-07-23 13:52:33,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2018-07-23 13:52:33,625 INFO L78 Accepts]: Start accepts. Automaton has 133 states. Word has length 263 [2018-07-23 13:52:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:33,626 INFO L225 Difference]: With dead ends: 267 [2018-07-23 13:52:33,626 INFO L226 Difference]: Without dead ends: 266 [2018-07-23 13:52:33,626 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2018-07-23 13:52:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-07-23 13:52:33,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2018-07-23 13:52:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-07-23 13:52:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2018-07-23 13:52:33,631 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 263 [2018-07-23 13:52:33,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:33,631 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2018-07-23 13:52:33,631 INFO L472 AbstractCegarLoop]: Interpolant automaton has 133 states. [2018-07-23 13:52:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2018-07-23 13:52:33,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-07-23 13:52:33,632 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:33,632 INFO L357 BasicCegarLoop]: trace histogram [132, 131, 1, 1] [2018-07-23 13:52:33,632 INFO L414 AbstractCegarLoop]: === Iteration 132 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:33,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1850679002, now seen corresponding path program 131 times [2018-07-23 13:52:33,633 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 17292 backedges. 0 proven. 17292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,232 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:34,233 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2018-07-23 13:52:34,233 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,233 INFO L185 omatonBuilderFactory]: Interpolants [80447#false, 80446#true, 80449#(<= (+ main_offset 1044) main_length), 80448#(<= (+ main_offset 1048) main_length), 80451#(<= (+ main_offset 1036) main_length), 80450#(<= (+ main_offset 1040) main_length), 80453#(<= (+ main_offset 1028) main_length), 80452#(<= (+ main_offset 1032) main_length), 80455#(<= (+ main_offset 1020) main_length), 80454#(<= (+ main_offset 1024) main_length), 80457#(<= (+ main_offset 1012) main_length), 80456#(<= (+ main_offset 1016) main_length), 80459#(<= (+ main_offset 1004) main_length), 80458#(<= (+ main_offset 1008) main_length), 80461#(<= (+ main_offset 996) main_length), 80460#(<= (+ main_offset 1000) main_length), 80463#(<= (+ main_offset 988) main_length), 80462#(<= (+ main_offset 992) main_length), 80465#(<= (+ main_offset 980) main_length), 80464#(<= (+ main_offset 984) main_length), 80467#(<= (+ main_offset 972) main_length), 80466#(<= (+ main_offset 976) main_length), 80469#(<= (+ main_offset 964) main_length), 80468#(<= (+ main_offset 968) main_length), 80471#(<= (+ main_offset 956) main_length), 80470#(<= (+ main_offset 960) main_length), 80473#(<= (+ main_offset 948) main_length), 80472#(<= (+ main_offset 952) main_length), 80475#(<= (+ main_offset 940) main_length), 80474#(<= (+ main_offset 944) main_length), 80477#(<= (+ main_offset 932) main_length), 80476#(<= (+ main_offset 936) main_length), 80479#(<= (+ main_offset 924) main_length), 80478#(<= (+ main_offset 928) main_length), 80481#(<= (+ main_offset 916) main_length), 80480#(<= (+ main_offset 920) main_length), 80483#(<= (+ main_offset 908) main_length), 80482#(<= (+ main_offset 912) main_length), 80485#(<= (+ main_offset 900) main_length), 80484#(<= (+ main_offset 904) main_length), 80487#(<= (+ main_offset 892) main_length), 80486#(<= (+ main_offset 896) main_length), 80489#(<= (+ main_offset 884) main_length), 80488#(<= (+ main_offset 888) main_length), 80491#(<= (+ main_offset 876) main_length), 80490#(<= (+ main_offset 880) main_length), 80493#(<= (+ main_offset 868) main_length), 80492#(<= (+ main_offset 872) main_length), 80495#(<= (+ main_offset 860) main_length), 80494#(<= (+ main_offset 864) main_length), 80497#(<= (+ main_offset 852) main_length), 80496#(<= (+ main_offset 856) main_length), 80499#(<= (+ main_offset 844) main_length), 80498#(<= (+ main_offset 848) main_length), 80501#(<= (+ main_offset 836) main_length), 80500#(<= (+ main_offset 840) main_length), 80503#(<= (+ main_offset 828) main_length), 80502#(<= (+ main_offset 832) main_length), 80505#(<= (+ main_offset 820) main_length), 80504#(<= (+ main_offset 824) main_length), 80507#(<= (+ main_offset 812) main_length), 80506#(<= (+ main_offset 816) main_length), 80509#(<= (+ main_offset 804) main_length), 80508#(<= (+ main_offset 808) main_length), 80511#(<= (+ main_offset 796) main_length), 80510#(<= (+ main_offset 800) main_length), 80513#(<= (+ main_offset 788) main_length), 80512#(<= (+ main_offset 792) main_length), 80515#(<= (+ main_offset 780) main_length), 80514#(<= (+ main_offset 784) main_length), 80517#(<= (+ main_offset 772) main_length), 80516#(<= (+ main_offset 776) main_length), 80519#(<= (+ main_offset 764) main_length), 80518#(<= (+ main_offset 768) main_length), 80521#(<= (+ main_offset 756) main_length), 80520#(<= (+ main_offset 760) main_length), 80523#(<= (+ main_offset 748) main_length), 80522#(<= (+ main_offset 752) main_length), 80525#(<= (+ main_offset 740) main_length), 80524#(<= (+ main_offset 744) main_length), 80527#(<= (+ main_offset 732) main_length), 80526#(<= (+ main_offset 736) main_length), 80529#(<= (+ main_offset 724) main_length), 80528#(<= (+ main_offset 728) main_length), 80531#(<= (+ main_offset 716) main_length), 80530#(<= (+ main_offset 720) main_length), 80533#(<= (+ main_offset 708) main_length), 80532#(<= (+ main_offset 712) main_length), 80535#(<= (+ main_offset 700) main_length), 80534#(<= (+ main_offset 704) main_length), 80537#(<= (+ main_offset 692) main_length), 80536#(<= (+ main_offset 696) main_length), 80539#(<= (+ main_offset 684) main_length), 80538#(<= (+ main_offset 688) main_length), 80541#(<= (+ main_offset 676) main_length), 80540#(<= (+ main_offset 680) main_length), 80543#(<= (+ main_offset 668) main_length), 80542#(<= (+ main_offset 672) main_length), 80545#(<= (+ main_offset 660) main_length), 80544#(<= (+ main_offset 664) main_length), 80547#(<= (+ main_offset 652) main_length), 80546#(<= (+ main_offset 656) main_length), 80549#(<= (+ main_offset 644) main_length), 80548#(<= (+ main_offset 648) main_length), 80551#(<= (+ main_offset 636) main_length), 80550#(<= (+ main_offset 640) main_length), 80553#(<= (+ main_offset 628) main_length), 80552#(<= (+ main_offset 632) main_length), 80555#(<= (+ main_offset 620) main_length), 80554#(<= (+ main_offset 624) main_length), 80557#(<= (+ main_offset 612) main_length), 80556#(<= (+ main_offset 616) main_length), 80559#(<= (+ main_offset 604) main_length), 80558#(<= (+ main_offset 608) main_length), 80561#(<= (+ main_offset 596) main_length), 80560#(<= (+ main_offset 600) main_length), 80563#(<= (+ main_offset 588) main_length), 80562#(<= (+ main_offset 592) main_length), 80565#(<= (+ main_offset 580) main_length), 80564#(<= (+ main_offset 584) main_length), 80567#(<= (+ main_offset 572) main_length), 80566#(<= (+ main_offset 576) main_length), 80569#(<= (+ main_offset 564) main_length), 80568#(<= (+ main_offset 568) main_length), 80571#(<= (+ main_offset 556) main_length), 80570#(<= (+ main_offset 560) main_length), 80573#(<= (+ main_offset 548) main_length), 80572#(<= (+ main_offset 552) main_length), 80575#(<= (+ main_offset 540) main_length), 80574#(<= (+ main_offset 544) main_length), 80577#(<= (+ main_offset 532) main_length), 80576#(<= (+ main_offset 536) main_length), 80579#(<= (+ main_offset 524) main_length), 80578#(<= (+ main_offset 528) main_length)] [2018-07-23 13:52:34,234 INFO L134 CoverageAnalysis]: Checked inductivity of 17292 backedges. 0 proven. 17292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:34,234 INFO L450 AbstractCegarLoop]: Interpolant automaton has 134 states [2018-07-23 13:52:34,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2018-07-23 13:52:34,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:52:34,236 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand 134 states. [2018-07-23 13:52:34,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:34,583 INFO L93 Difference]: Finished difference Result 269 states and 269 transitions. [2018-07-23 13:52:34,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2018-07-23 13:52:34,583 INFO L78 Accepts]: Start accepts. Automaton has 134 states. Word has length 265 [2018-07-23 13:52:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:34,584 INFO L225 Difference]: With dead ends: 269 [2018-07-23 13:52:34,584 INFO L226 Difference]: Without dead ends: 268 [2018-07-23 13:52:34,585 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2018-07-23 13:52:34,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-07-23 13:52:34,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2018-07-23 13:52:34,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-07-23 13:52:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 268 transitions. [2018-07-23 13:52:34,588 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 268 transitions. Word has length 265 [2018-07-23 13:52:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:34,588 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 268 transitions. [2018-07-23 13:52:34,589 INFO L472 AbstractCegarLoop]: Interpolant automaton has 134 states. [2018-07-23 13:52:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 268 transitions. [2018-07-23 13:52:34,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-07-23 13:52:34,589 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:34,589 INFO L357 BasicCegarLoop]: trace histogram [133, 132, 1, 1] [2018-07-23 13:52:34,590 INFO L414 AbstractCegarLoop]: === Iteration 133 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash -386059288, now seen corresponding path program 132 times [2018-07-23 13:52:34,590 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 17556 backedges. 0 proven. 17556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,243 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:35,243 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2018-07-23 13:52:35,243 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,243 INFO L185 omatonBuilderFactory]: Interpolants [81665#(<= (+ main_offset 1012) main_length), 81664#(<= (+ main_offset 1016) main_length), 81667#(<= (+ main_offset 1004) main_length), 81666#(<= (+ main_offset 1008) main_length), 81669#(<= (+ main_offset 996) main_length), 81668#(<= (+ main_offset 1000) main_length), 81671#(<= (+ main_offset 988) main_length), 81670#(<= (+ main_offset 992) main_length), 81673#(<= (+ main_offset 980) main_length), 81672#(<= (+ main_offset 984) main_length), 81675#(<= (+ main_offset 972) main_length), 81674#(<= (+ main_offset 976) main_length), 81677#(<= (+ main_offset 964) main_length), 81676#(<= (+ main_offset 968) main_length), 81679#(<= (+ main_offset 956) main_length), 81678#(<= (+ main_offset 960) main_length), 81681#(<= (+ main_offset 948) main_length), 81680#(<= (+ main_offset 952) main_length), 81683#(<= (+ main_offset 940) main_length), 81682#(<= (+ main_offset 944) main_length), 81685#(<= (+ main_offset 932) main_length), 81684#(<= (+ main_offset 936) main_length), 81687#(<= (+ main_offset 924) main_length), 81686#(<= (+ main_offset 928) main_length), 81689#(<= (+ main_offset 916) main_length), 81688#(<= (+ main_offset 920) main_length), 81691#(<= (+ main_offset 908) main_length), 81690#(<= (+ main_offset 912) main_length), 81693#(<= (+ main_offset 900) main_length), 81692#(<= (+ main_offset 904) main_length), 81695#(<= (+ main_offset 892) main_length), 81694#(<= (+ main_offset 896) main_length), 81697#(<= (+ main_offset 884) main_length), 81696#(<= (+ main_offset 888) main_length), 81699#(<= (+ main_offset 876) main_length), 81698#(<= (+ main_offset 880) main_length), 81701#(<= (+ main_offset 868) main_length), 81700#(<= (+ main_offset 872) main_length), 81703#(<= (+ main_offset 860) main_length), 81702#(<= (+ main_offset 864) main_length), 81705#(<= (+ main_offset 852) main_length), 81704#(<= (+ main_offset 856) main_length), 81707#(<= (+ main_offset 844) main_length), 81706#(<= (+ main_offset 848) main_length), 81709#(<= (+ main_offset 836) main_length), 81708#(<= (+ main_offset 840) main_length), 81711#(<= (+ main_offset 828) main_length), 81710#(<= (+ main_offset 832) main_length), 81713#(<= (+ main_offset 820) main_length), 81712#(<= (+ main_offset 824) main_length), 81715#(<= (+ main_offset 812) main_length), 81714#(<= (+ main_offset 816) main_length), 81717#(<= (+ main_offset 804) main_length), 81716#(<= (+ main_offset 808) main_length), 81719#(<= (+ main_offset 796) main_length), 81718#(<= (+ main_offset 800) main_length), 81721#(<= (+ main_offset 788) main_length), 81720#(<= (+ main_offset 792) main_length), 81723#(<= (+ main_offset 780) main_length), 81722#(<= (+ main_offset 784) main_length), 81725#(<= (+ main_offset 772) main_length), 81724#(<= (+ main_offset 776) main_length), 81727#(<= (+ main_offset 764) main_length), 81726#(<= (+ main_offset 768) main_length), 81729#(<= (+ main_offset 756) main_length), 81728#(<= (+ main_offset 760) main_length), 81731#(<= (+ main_offset 748) main_length), 81730#(<= (+ main_offset 752) main_length), 81733#(<= (+ main_offset 740) main_length), 81732#(<= (+ main_offset 744) main_length), 81735#(<= (+ main_offset 732) main_length), 81734#(<= (+ main_offset 736) main_length), 81737#(<= (+ main_offset 724) main_length), 81736#(<= (+ main_offset 728) main_length), 81739#(<= (+ main_offset 716) main_length), 81738#(<= (+ main_offset 720) main_length), 81741#(<= (+ main_offset 708) main_length), 81740#(<= (+ main_offset 712) main_length), 81743#(<= (+ main_offset 700) main_length), 81742#(<= (+ main_offset 704) main_length), 81745#(<= (+ main_offset 692) main_length), 81744#(<= (+ main_offset 696) main_length), 81747#(<= (+ main_offset 684) main_length), 81746#(<= (+ main_offset 688) main_length), 81749#(<= (+ main_offset 676) main_length), 81748#(<= (+ main_offset 680) main_length), 81751#(<= (+ main_offset 668) main_length), 81750#(<= (+ main_offset 672) main_length), 81753#(<= (+ main_offset 660) main_length), 81752#(<= (+ main_offset 664) main_length), 81755#(<= (+ main_offset 652) main_length), 81754#(<= (+ main_offset 656) main_length), 81757#(<= (+ main_offset 644) main_length), 81756#(<= (+ main_offset 648) main_length), 81759#(<= (+ main_offset 636) main_length), 81758#(<= (+ main_offset 640) main_length), 81761#(<= (+ main_offset 628) main_length), 81760#(<= (+ main_offset 632) main_length), 81763#(<= (+ main_offset 620) main_length), 81762#(<= (+ main_offset 624) main_length), 81765#(<= (+ main_offset 612) main_length), 81764#(<= (+ main_offset 616) main_length), 81767#(<= (+ main_offset 604) main_length), 81766#(<= (+ main_offset 608) main_length), 81769#(<= (+ main_offset 596) main_length), 81768#(<= (+ main_offset 600) main_length), 81771#(<= (+ main_offset 588) main_length), 81770#(<= (+ main_offset 592) main_length), 81773#(<= (+ main_offset 580) main_length), 81772#(<= (+ main_offset 584) main_length), 81775#(<= (+ main_offset 572) main_length), 81774#(<= (+ main_offset 576) main_length), 81777#(<= (+ main_offset 564) main_length), 81776#(<= (+ main_offset 568) main_length), 81779#(<= (+ main_offset 556) main_length), 81778#(<= (+ main_offset 560) main_length), 81781#(<= (+ main_offset 548) main_length), 81780#(<= (+ main_offset 552) main_length), 81783#(<= (+ main_offset 540) main_length), 81782#(<= (+ main_offset 544) main_length), 81785#(<= (+ main_offset 532) main_length), 81784#(<= (+ main_offset 536) main_length), 81787#(<= (+ main_offset 524) main_length), 81786#(<= (+ main_offset 528) main_length), 81788#(<= (+ main_offset 520) main_length), 81655#false, 81654#true, 81657#(<= (+ main_offset 1044) main_length), 81656#(<= (+ main_offset 1048) main_length), 81659#(<= (+ main_offset 1036) main_length), 81658#(<= (+ main_offset 1040) main_length), 81661#(<= (+ main_offset 1028) main_length), 81660#(<= (+ main_offset 1032) main_length), 81663#(<= (+ main_offset 1020) main_length), 81662#(<= (+ main_offset 1024) main_length)] [2018-07-23 13:52:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 17556 backedges. 0 proven. 17556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:35,244 INFO L450 AbstractCegarLoop]: Interpolant automaton has 135 states [2018-07-23 13:52:35,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2018-07-23 13:52:35,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:52:35,247 INFO L87 Difference]: Start difference. First operand 268 states and 268 transitions. Second operand 135 states. [2018-07-23 13:52:35,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:35,642 INFO L93 Difference]: Finished difference Result 271 states and 271 transitions. [2018-07-23 13:52:35,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2018-07-23 13:52:35,642 INFO L78 Accepts]: Start accepts. Automaton has 135 states. Word has length 267 [2018-07-23 13:52:35,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:35,642 INFO L225 Difference]: With dead ends: 271 [2018-07-23 13:52:35,642 INFO L226 Difference]: Without dead ends: 270 [2018-07-23 13:52:35,644 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2018-07-23 13:52:35,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2018-07-23 13:52:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2018-07-23 13:52:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2018-07-23 13:52:35,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 270 transitions. [2018-07-23 13:52:35,649 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 270 transitions. Word has length 267 [2018-07-23 13:52:35,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:35,649 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 270 transitions. [2018-07-23 13:52:35,649 INFO L472 AbstractCegarLoop]: Interpolant automaton has 135 states. [2018-07-23 13:52:35,649 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 270 transitions. [2018-07-23 13:52:35,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-07-23 13:52:35,650 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:35,650 INFO L357 BasicCegarLoop]: trace histogram [134, 133, 1, 1] [2018-07-23 13:52:35,650 INFO L414 AbstractCegarLoop]: === Iteration 134 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:35,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1635787222, now seen corresponding path program 133 times [2018-07-23 13:52:35,650 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17822 backedges. 0 proven. 17822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,295 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:36,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2018-07-23 13:52:36,295 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:36,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,295 INFO L185 omatonBuilderFactory]: Interpolants [82945#(<= (+ main_offset 760) main_length), 82944#(<= (+ main_offset 764) main_length), 82947#(<= (+ main_offset 752) main_length), 82946#(<= (+ main_offset 756) main_length), 82949#(<= (+ main_offset 744) main_length), 82948#(<= (+ main_offset 748) main_length), 82951#(<= (+ main_offset 736) main_length), 82950#(<= (+ main_offset 740) main_length), 82953#(<= (+ main_offset 728) main_length), 82952#(<= (+ main_offset 732) main_length), 82955#(<= (+ main_offset 720) main_length), 82954#(<= (+ main_offset 724) main_length), 82957#(<= (+ main_offset 712) main_length), 82956#(<= (+ main_offset 716) main_length), 82959#(<= (+ main_offset 704) main_length), 82958#(<= (+ main_offset 708) main_length), 82961#(<= (+ main_offset 696) main_length), 82960#(<= (+ main_offset 700) main_length), 82963#(<= (+ main_offset 688) main_length), 82962#(<= (+ main_offset 692) main_length), 82965#(<= (+ main_offset 680) main_length), 82964#(<= (+ main_offset 684) main_length), 82967#(<= (+ main_offset 672) main_length), 82966#(<= (+ main_offset 676) main_length), 82969#(<= (+ main_offset 664) main_length), 82968#(<= (+ main_offset 668) main_length), 82971#(<= (+ main_offset 656) main_length), 82970#(<= (+ main_offset 660) main_length), 82973#(<= (+ main_offset 648) main_length), 82972#(<= (+ main_offset 652) main_length), 82975#(<= (+ main_offset 640) main_length), 82974#(<= (+ main_offset 644) main_length), 82977#(<= (+ main_offset 632) main_length), 82976#(<= (+ main_offset 636) main_length), 82979#(<= (+ main_offset 624) main_length), 82978#(<= (+ main_offset 628) main_length), 82981#(<= (+ main_offset 616) main_length), 82980#(<= (+ main_offset 620) main_length), 82983#(<= (+ main_offset 608) main_length), 82982#(<= (+ main_offset 612) main_length), 82985#(<= (+ main_offset 600) main_length), 82984#(<= (+ main_offset 604) main_length), 82987#(<= (+ main_offset 592) main_length), 82986#(<= (+ main_offset 596) main_length), 82989#(<= (+ main_offset 584) main_length), 82988#(<= (+ main_offset 588) main_length), 82991#(<= (+ main_offset 576) main_length), 82990#(<= (+ main_offset 580) main_length), 82993#(<= (+ main_offset 568) main_length), 82992#(<= (+ main_offset 572) main_length), 82995#(<= (+ main_offset 560) main_length), 82994#(<= (+ main_offset 564) main_length), 82997#(<= (+ main_offset 552) main_length), 82996#(<= (+ main_offset 556) main_length), 82999#(<= (+ main_offset 544) main_length), 82998#(<= (+ main_offset 548) main_length), 83001#(<= (+ main_offset 536) main_length), 83000#(<= (+ main_offset 540) main_length), 83003#(<= (+ main_offset 528) main_length), 83002#(<= (+ main_offset 532) main_length), 83005#(<= (+ main_offset 520) main_length), 83004#(<= (+ main_offset 524) main_length), 83006#(<= (+ main_offset 516) main_length), 82871#true, 82873#(<= (+ main_offset 1048) main_length), 82872#false, 82875#(<= (+ main_offset 1040) main_length), 82874#(<= (+ main_offset 1044) main_length), 82877#(<= (+ main_offset 1032) main_length), 82876#(<= (+ main_offset 1036) main_length), 82879#(<= (+ main_offset 1024) main_length), 82878#(<= (+ main_offset 1028) main_length), 82881#(<= (+ main_offset 1016) main_length), 82880#(<= (+ main_offset 1020) main_length), 82883#(<= (+ main_offset 1008) main_length), 82882#(<= (+ main_offset 1012) main_length), 82885#(<= (+ main_offset 1000) main_length), 82884#(<= (+ main_offset 1004) main_length), 82887#(<= (+ main_offset 992) main_length), 82886#(<= (+ main_offset 996) main_length), 82889#(<= (+ main_offset 984) main_length), 82888#(<= (+ main_offset 988) main_length), 82891#(<= (+ main_offset 976) main_length), 82890#(<= (+ main_offset 980) main_length), 82893#(<= (+ main_offset 968) main_length), 82892#(<= (+ main_offset 972) main_length), 82895#(<= (+ main_offset 960) main_length), 82894#(<= (+ main_offset 964) main_length), 82897#(<= (+ main_offset 952) main_length), 82896#(<= (+ main_offset 956) main_length), 82899#(<= (+ main_offset 944) main_length), 82898#(<= (+ main_offset 948) main_length), 82901#(<= (+ main_offset 936) main_length), 82900#(<= (+ main_offset 940) main_length), 82903#(<= (+ main_offset 928) main_length), 82902#(<= (+ main_offset 932) main_length), 82905#(<= (+ main_offset 920) main_length), 82904#(<= (+ main_offset 924) main_length), 82907#(<= (+ main_offset 912) main_length), 82906#(<= (+ main_offset 916) main_length), 82909#(<= (+ main_offset 904) main_length), 82908#(<= (+ main_offset 908) main_length), 82911#(<= (+ main_offset 896) main_length), 82910#(<= (+ main_offset 900) main_length), 82913#(<= (+ main_offset 888) main_length), 82912#(<= (+ main_offset 892) main_length), 82915#(<= (+ main_offset 880) main_length), 82914#(<= (+ main_offset 884) main_length), 82917#(<= (+ main_offset 872) main_length), 82916#(<= (+ main_offset 876) main_length), 82919#(<= (+ main_offset 864) main_length), 82918#(<= (+ main_offset 868) main_length), 82921#(<= (+ main_offset 856) main_length), 82920#(<= (+ main_offset 860) main_length), 82923#(<= (+ main_offset 848) main_length), 82922#(<= (+ main_offset 852) main_length), 82925#(<= (+ main_offset 840) main_length), 82924#(<= (+ main_offset 844) main_length), 82927#(<= (+ main_offset 832) main_length), 82926#(<= (+ main_offset 836) main_length), 82929#(<= (+ main_offset 824) main_length), 82928#(<= (+ main_offset 828) main_length), 82931#(<= (+ main_offset 816) main_length), 82930#(<= (+ main_offset 820) main_length), 82933#(<= (+ main_offset 808) main_length), 82932#(<= (+ main_offset 812) main_length), 82935#(<= (+ main_offset 800) main_length), 82934#(<= (+ main_offset 804) main_length), 82937#(<= (+ main_offset 792) main_length), 82936#(<= (+ main_offset 796) main_length), 82939#(<= (+ main_offset 784) main_length), 82938#(<= (+ main_offset 788) main_length), 82941#(<= (+ main_offset 776) main_length), 82940#(<= (+ main_offset 780) main_length), 82943#(<= (+ main_offset 768) main_length), 82942#(<= (+ main_offset 772) main_length)] [2018-07-23 13:52:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 17822 backedges. 0 proven. 17822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:36,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 136 states [2018-07-23 13:52:36,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 136 interpolants. [2018-07-23 13:52:36,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:52:36,300 INFO L87 Difference]: Start difference. First operand 270 states and 270 transitions. Second operand 136 states. [2018-07-23 13:52:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:36,470 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2018-07-23 13:52:36,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2018-07-23 13:52:36,470 INFO L78 Accepts]: Start accepts. Automaton has 136 states. Word has length 269 [2018-07-23 13:52:36,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:36,470 INFO L225 Difference]: With dead ends: 273 [2018-07-23 13:52:36,471 INFO L226 Difference]: Without dead ends: 272 [2018-07-23 13:52:36,471 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2018-07-23 13:52:36,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-07-23 13:52:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2018-07-23 13:52:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2018-07-23 13:52:36,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2018-07-23 13:52:36,475 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 269 [2018-07-23 13:52:36,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:36,475 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2018-07-23 13:52:36,475 INFO L472 AbstractCegarLoop]: Interpolant automaton has 136 states. [2018-07-23 13:52:36,475 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2018-07-23 13:52:36,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-07-23 13:52:36,476 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:36,476 INFO L357 BasicCegarLoop]: trace histogram [135, 134, 1, 1] [2018-07-23 13:52:36,476 INFO L414 AbstractCegarLoop]: === Iteration 135 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:36,476 INFO L82 PathProgramCache]: Analyzing trace with hash -33488916, now seen corresponding path program 134 times [2018-07-23 13:52:36,476 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:37,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18090 backedges. 0 proven. 18090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,158 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:37,158 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2018-07-23 13:52:37,158 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,158 INFO L185 omatonBuilderFactory]: Interpolants [84225#(<= (+ main_offset 544) main_length), 84224#(<= (+ main_offset 548) main_length), 84227#(<= (+ main_offset 536) main_length), 84226#(<= (+ main_offset 540) main_length), 84229#(<= (+ main_offset 528) main_length), 84228#(<= (+ main_offset 532) main_length), 84231#(<= (+ main_offset 520) main_length), 84230#(<= (+ main_offset 524) main_length), 84233#(<= (+ main_offset 512) main_length), 84232#(<= (+ main_offset 516) main_length), 84097#true, 84099#(<= (+ main_offset 1048) main_length), 84098#false, 84101#(<= (+ main_offset 1040) main_length), 84100#(<= (+ main_offset 1044) main_length), 84103#(<= (+ main_offset 1032) main_length), 84102#(<= (+ main_offset 1036) main_length), 84105#(<= (+ main_offset 1024) main_length), 84104#(<= (+ main_offset 1028) main_length), 84107#(<= (+ main_offset 1016) main_length), 84106#(<= (+ main_offset 1020) main_length), 84109#(<= (+ main_offset 1008) main_length), 84108#(<= (+ main_offset 1012) main_length), 84111#(<= (+ main_offset 1000) main_length), 84110#(<= (+ main_offset 1004) main_length), 84113#(<= (+ main_offset 992) main_length), 84112#(<= (+ main_offset 996) main_length), 84115#(<= (+ main_offset 984) main_length), 84114#(<= (+ main_offset 988) main_length), 84117#(<= (+ main_offset 976) main_length), 84116#(<= (+ main_offset 980) main_length), 84119#(<= (+ main_offset 968) main_length), 84118#(<= (+ main_offset 972) main_length), 84121#(<= (+ main_offset 960) main_length), 84120#(<= (+ main_offset 964) main_length), 84123#(<= (+ main_offset 952) main_length), 84122#(<= (+ main_offset 956) main_length), 84125#(<= (+ main_offset 944) main_length), 84124#(<= (+ main_offset 948) main_length), 84127#(<= (+ main_offset 936) main_length), 84126#(<= (+ main_offset 940) main_length), 84129#(<= (+ main_offset 928) main_length), 84128#(<= (+ main_offset 932) main_length), 84131#(<= (+ main_offset 920) main_length), 84130#(<= (+ main_offset 924) main_length), 84133#(<= (+ main_offset 912) main_length), 84132#(<= (+ main_offset 916) main_length), 84135#(<= (+ main_offset 904) main_length), 84134#(<= (+ main_offset 908) main_length), 84137#(<= (+ main_offset 896) main_length), 84136#(<= (+ main_offset 900) main_length), 84139#(<= (+ main_offset 888) main_length), 84138#(<= (+ main_offset 892) main_length), 84141#(<= (+ main_offset 880) main_length), 84140#(<= (+ main_offset 884) main_length), 84143#(<= (+ main_offset 872) main_length), 84142#(<= (+ main_offset 876) main_length), 84145#(<= (+ main_offset 864) main_length), 84144#(<= (+ main_offset 868) main_length), 84147#(<= (+ main_offset 856) main_length), 84146#(<= (+ main_offset 860) main_length), 84149#(<= (+ main_offset 848) main_length), 84148#(<= (+ main_offset 852) main_length), 84151#(<= (+ main_offset 840) main_length), 84150#(<= (+ main_offset 844) main_length), 84153#(<= (+ main_offset 832) main_length), 84152#(<= (+ main_offset 836) main_length), 84155#(<= (+ main_offset 824) main_length), 84154#(<= (+ main_offset 828) main_length), 84157#(<= (+ main_offset 816) main_length), 84156#(<= (+ main_offset 820) main_length), 84159#(<= (+ main_offset 808) main_length), 84158#(<= (+ main_offset 812) main_length), 84161#(<= (+ main_offset 800) main_length), 84160#(<= (+ main_offset 804) main_length), 84163#(<= (+ main_offset 792) main_length), 84162#(<= (+ main_offset 796) main_length), 84165#(<= (+ main_offset 784) main_length), 84164#(<= (+ main_offset 788) main_length), 84167#(<= (+ main_offset 776) main_length), 84166#(<= (+ main_offset 780) main_length), 84169#(<= (+ main_offset 768) main_length), 84168#(<= (+ main_offset 772) main_length), 84171#(<= (+ main_offset 760) main_length), 84170#(<= (+ main_offset 764) main_length), 84173#(<= (+ main_offset 752) main_length), 84172#(<= (+ main_offset 756) main_length), 84175#(<= (+ main_offset 744) main_length), 84174#(<= (+ main_offset 748) main_length), 84177#(<= (+ main_offset 736) main_length), 84176#(<= (+ main_offset 740) main_length), 84179#(<= (+ main_offset 728) main_length), 84178#(<= (+ main_offset 732) main_length), 84181#(<= (+ main_offset 720) main_length), 84180#(<= (+ main_offset 724) main_length), 84183#(<= (+ main_offset 712) main_length), 84182#(<= (+ main_offset 716) main_length), 84185#(<= (+ main_offset 704) main_length), 84184#(<= (+ main_offset 708) main_length), 84187#(<= (+ main_offset 696) main_length), 84186#(<= (+ main_offset 700) main_length), 84189#(<= (+ main_offset 688) main_length), 84188#(<= (+ main_offset 692) main_length), 84191#(<= (+ main_offset 680) main_length), 84190#(<= (+ main_offset 684) main_length), 84193#(<= (+ main_offset 672) main_length), 84192#(<= (+ main_offset 676) main_length), 84195#(<= (+ main_offset 664) main_length), 84194#(<= (+ main_offset 668) main_length), 84197#(<= (+ main_offset 656) main_length), 84196#(<= (+ main_offset 660) main_length), 84199#(<= (+ main_offset 648) main_length), 84198#(<= (+ main_offset 652) main_length), 84201#(<= (+ main_offset 640) main_length), 84200#(<= (+ main_offset 644) main_length), 84203#(<= (+ main_offset 632) main_length), 84202#(<= (+ main_offset 636) main_length), 84205#(<= (+ main_offset 624) main_length), 84204#(<= (+ main_offset 628) main_length), 84207#(<= (+ main_offset 616) main_length), 84206#(<= (+ main_offset 620) main_length), 84209#(<= (+ main_offset 608) main_length), 84208#(<= (+ main_offset 612) main_length), 84211#(<= (+ main_offset 600) main_length), 84210#(<= (+ main_offset 604) main_length), 84213#(<= (+ main_offset 592) main_length), 84212#(<= (+ main_offset 596) main_length), 84215#(<= (+ main_offset 584) main_length), 84214#(<= (+ main_offset 588) main_length), 84217#(<= (+ main_offset 576) main_length), 84216#(<= (+ main_offset 580) main_length), 84219#(<= (+ main_offset 568) main_length), 84218#(<= (+ main_offset 572) main_length), 84221#(<= (+ main_offset 560) main_length), 84220#(<= (+ main_offset 564) main_length), 84223#(<= (+ main_offset 552) main_length), 84222#(<= (+ main_offset 556) main_length)] [2018-07-23 13:52:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 18090 backedges. 0 proven. 18090 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:37,159 INFO L450 AbstractCegarLoop]: Interpolant automaton has 137 states [2018-07-23 13:52:37,161 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2018-07-23 13:52:37,161 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:52:37,161 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 137 states. [2018-07-23 13:52:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:37,530 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2018-07-23 13:52:37,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2018-07-23 13:52:37,530 INFO L78 Accepts]: Start accepts. Automaton has 137 states. Word has length 271 [2018-07-23 13:52:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:37,531 INFO L225 Difference]: With dead ends: 275 [2018-07-23 13:52:37,531 INFO L226 Difference]: Without dead ends: 274 [2018-07-23 13:52:37,532 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2018-07-23 13:52:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-07-23 13:52:37,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2018-07-23 13:52:37,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2018-07-23 13:52:37,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2018-07-23 13:52:37,538 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 271 [2018-07-23 13:52:37,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:37,538 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2018-07-23 13:52:37,538 INFO L472 AbstractCegarLoop]: Interpolant automaton has 137 states. [2018-07-23 13:52:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2018-07-23 13:52:37,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-07-23 13:52:37,539 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:37,539 INFO L357 BasicCegarLoop]: trace histogram [136, 135, 1, 1] [2018-07-23 13:52:37,539 INFO L414 AbstractCegarLoop]: === Iteration 136 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:37,540 INFO L82 PathProgramCache]: Analyzing trace with hash -2118076114, now seen corresponding path program 135 times [2018-07-23 13:52:37,540 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 18360 backedges. 0 proven. 18360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,268 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:38,268 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2018-07-23 13:52:38,268 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,269 INFO L185 omatonBuilderFactory]: Interpolants [85333#false, 85332#true, 85335#(<= (+ main_offset 1044) main_length), 85334#(<= (+ main_offset 1048) main_length), 85337#(<= (+ main_offset 1036) main_length), 85336#(<= (+ main_offset 1040) main_length), 85339#(<= (+ main_offset 1028) main_length), 85338#(<= (+ main_offset 1032) main_length), 85341#(<= (+ main_offset 1020) main_length), 85340#(<= (+ main_offset 1024) main_length), 85343#(<= (+ main_offset 1012) main_length), 85342#(<= (+ main_offset 1016) main_length), 85345#(<= (+ main_offset 1004) main_length), 85344#(<= (+ main_offset 1008) main_length), 85347#(<= (+ main_offset 996) main_length), 85346#(<= (+ main_offset 1000) main_length), 85349#(<= (+ main_offset 988) main_length), 85348#(<= (+ main_offset 992) main_length), 85351#(<= (+ main_offset 980) main_length), 85350#(<= (+ main_offset 984) main_length), 85353#(<= (+ main_offset 972) main_length), 85352#(<= (+ main_offset 976) main_length), 85355#(<= (+ main_offset 964) main_length), 85354#(<= (+ main_offset 968) main_length), 85357#(<= (+ main_offset 956) main_length), 85356#(<= (+ main_offset 960) main_length), 85359#(<= (+ main_offset 948) main_length), 85358#(<= (+ main_offset 952) main_length), 85361#(<= (+ main_offset 940) main_length), 85360#(<= (+ main_offset 944) main_length), 85363#(<= (+ main_offset 932) main_length), 85362#(<= (+ main_offset 936) main_length), 85365#(<= (+ main_offset 924) main_length), 85364#(<= (+ main_offset 928) main_length), 85367#(<= (+ main_offset 916) main_length), 85366#(<= (+ main_offset 920) main_length), 85369#(<= (+ main_offset 908) main_length), 85368#(<= (+ main_offset 912) main_length), 85371#(<= (+ main_offset 900) main_length), 85370#(<= (+ main_offset 904) main_length), 85373#(<= (+ main_offset 892) main_length), 85372#(<= (+ main_offset 896) main_length), 85375#(<= (+ main_offset 884) main_length), 85374#(<= (+ main_offset 888) main_length), 85377#(<= (+ main_offset 876) main_length), 85376#(<= (+ main_offset 880) main_length), 85379#(<= (+ main_offset 868) main_length), 85378#(<= (+ main_offset 872) main_length), 85381#(<= (+ main_offset 860) main_length), 85380#(<= (+ main_offset 864) main_length), 85383#(<= (+ main_offset 852) main_length), 85382#(<= (+ main_offset 856) main_length), 85385#(<= (+ main_offset 844) main_length), 85384#(<= (+ main_offset 848) main_length), 85387#(<= (+ main_offset 836) main_length), 85386#(<= (+ main_offset 840) main_length), 85389#(<= (+ main_offset 828) main_length), 85388#(<= (+ main_offset 832) main_length), 85391#(<= (+ main_offset 820) main_length), 85390#(<= (+ main_offset 824) main_length), 85393#(<= (+ main_offset 812) main_length), 85392#(<= (+ main_offset 816) main_length), 85395#(<= (+ main_offset 804) main_length), 85394#(<= (+ main_offset 808) main_length), 85397#(<= (+ main_offset 796) main_length), 85396#(<= (+ main_offset 800) main_length), 85399#(<= (+ main_offset 788) main_length), 85398#(<= (+ main_offset 792) main_length), 85401#(<= (+ main_offset 780) main_length), 85400#(<= (+ main_offset 784) main_length), 85403#(<= (+ main_offset 772) main_length), 85402#(<= (+ main_offset 776) main_length), 85405#(<= (+ main_offset 764) main_length), 85404#(<= (+ main_offset 768) main_length), 85407#(<= (+ main_offset 756) main_length), 85406#(<= (+ main_offset 760) main_length), 85409#(<= (+ main_offset 748) main_length), 85408#(<= (+ main_offset 752) main_length), 85411#(<= (+ main_offset 740) main_length), 85410#(<= (+ main_offset 744) main_length), 85413#(<= (+ main_offset 732) main_length), 85412#(<= (+ main_offset 736) main_length), 85415#(<= (+ main_offset 724) main_length), 85414#(<= (+ main_offset 728) main_length), 85417#(<= (+ main_offset 716) main_length), 85416#(<= (+ main_offset 720) main_length), 85419#(<= (+ main_offset 708) main_length), 85418#(<= (+ main_offset 712) main_length), 85421#(<= (+ main_offset 700) main_length), 85420#(<= (+ main_offset 704) main_length), 85423#(<= (+ main_offset 692) main_length), 85422#(<= (+ main_offset 696) main_length), 85425#(<= (+ main_offset 684) main_length), 85424#(<= (+ main_offset 688) main_length), 85427#(<= (+ main_offset 676) main_length), 85426#(<= (+ main_offset 680) main_length), 85429#(<= (+ main_offset 668) main_length), 85428#(<= (+ main_offset 672) main_length), 85431#(<= (+ main_offset 660) main_length), 85430#(<= (+ main_offset 664) main_length), 85433#(<= (+ main_offset 652) main_length), 85432#(<= (+ main_offset 656) main_length), 85435#(<= (+ main_offset 644) main_length), 85434#(<= (+ main_offset 648) main_length), 85437#(<= (+ main_offset 636) main_length), 85436#(<= (+ main_offset 640) main_length), 85439#(<= (+ main_offset 628) main_length), 85438#(<= (+ main_offset 632) main_length), 85441#(<= (+ main_offset 620) main_length), 85440#(<= (+ main_offset 624) main_length), 85443#(<= (+ main_offset 612) main_length), 85442#(<= (+ main_offset 616) main_length), 85445#(<= (+ main_offset 604) main_length), 85444#(<= (+ main_offset 608) main_length), 85447#(<= (+ main_offset 596) main_length), 85446#(<= (+ main_offset 600) main_length), 85449#(<= (+ main_offset 588) main_length), 85448#(<= (+ main_offset 592) main_length), 85451#(<= (+ main_offset 580) main_length), 85450#(<= (+ main_offset 584) main_length), 85453#(<= (+ main_offset 572) main_length), 85452#(<= (+ main_offset 576) main_length), 85455#(<= (+ main_offset 564) main_length), 85454#(<= (+ main_offset 568) main_length), 85457#(<= (+ main_offset 556) main_length), 85456#(<= (+ main_offset 560) main_length), 85459#(<= (+ main_offset 548) main_length), 85458#(<= (+ main_offset 552) main_length), 85461#(<= (+ main_offset 540) main_length), 85460#(<= (+ main_offset 544) main_length), 85463#(<= (+ main_offset 532) main_length), 85462#(<= (+ main_offset 536) main_length), 85465#(<= (+ main_offset 524) main_length), 85464#(<= (+ main_offset 528) main_length), 85467#(<= (+ main_offset 516) main_length), 85466#(<= (+ main_offset 520) main_length), 85469#(<= (+ main_offset 508) main_length), 85468#(<= (+ main_offset 512) main_length)] [2018-07-23 13:52:38,270 INFO L134 CoverageAnalysis]: Checked inductivity of 18360 backedges. 0 proven. 18360 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:38,270 INFO L450 AbstractCegarLoop]: Interpolant automaton has 138 states [2018-07-23 13:52:38,272 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2018-07-23 13:52:38,273 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:52:38,273 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand 138 states. [2018-07-23 13:52:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:38,681 INFO L93 Difference]: Finished difference Result 277 states and 277 transitions. [2018-07-23 13:52:38,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2018-07-23 13:52:38,682 INFO L78 Accepts]: Start accepts. Automaton has 138 states. Word has length 273 [2018-07-23 13:52:38,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:38,682 INFO L225 Difference]: With dead ends: 277 [2018-07-23 13:52:38,682 INFO L226 Difference]: Without dead ends: 276 [2018-07-23 13:52:38,683 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2018-07-23 13:52:38,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-07-23 13:52:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2018-07-23 13:52:38,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-07-23 13:52:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 276 transitions. [2018-07-23 13:52:38,687 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 276 transitions. Word has length 273 [2018-07-23 13:52:38,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:38,687 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 276 transitions. [2018-07-23 13:52:38,687 INFO L472 AbstractCegarLoop]: Interpolant automaton has 138 states. [2018-07-23 13:52:38,687 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 276 transitions. [2018-07-23 13:52:38,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-07-23 13:52:38,688 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:38,688 INFO L357 BasicCegarLoop]: trace histogram [137, 136, 1, 1] [2018-07-23 13:52:38,688 INFO L414 AbstractCegarLoop]: === Iteration 137 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:38,688 INFO L82 PathProgramCache]: Analyzing trace with hash 343353840, now seen corresponding path program 136 times [2018-07-23 13:52:38,688 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18632 backedges. 0 proven. 18632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,349 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:39,349 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2018-07-23 13:52:39,349 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,350 INFO L185 omatonBuilderFactory]: Interpolants [86577#false, 86576#true, 86579#(<= (+ main_offset 1044) main_length), 86578#(<= (+ main_offset 1048) main_length), 86581#(<= (+ main_offset 1036) main_length), 86580#(<= (+ main_offset 1040) main_length), 86583#(<= (+ main_offset 1028) main_length), 86582#(<= (+ main_offset 1032) main_length), 86585#(<= (+ main_offset 1020) main_length), 86584#(<= (+ main_offset 1024) main_length), 86587#(<= (+ main_offset 1012) main_length), 86586#(<= (+ main_offset 1016) main_length), 86589#(<= (+ main_offset 1004) main_length), 86588#(<= (+ main_offset 1008) main_length), 86591#(<= (+ main_offset 996) main_length), 86590#(<= (+ main_offset 1000) main_length), 86593#(<= (+ main_offset 988) main_length), 86592#(<= (+ main_offset 992) main_length), 86595#(<= (+ main_offset 980) main_length), 86594#(<= (+ main_offset 984) main_length), 86597#(<= (+ main_offset 972) main_length), 86596#(<= (+ main_offset 976) main_length), 86599#(<= (+ main_offset 964) main_length), 86598#(<= (+ main_offset 968) main_length), 86601#(<= (+ main_offset 956) main_length), 86600#(<= (+ main_offset 960) main_length), 86603#(<= (+ main_offset 948) main_length), 86602#(<= (+ main_offset 952) main_length), 86605#(<= (+ main_offset 940) main_length), 86604#(<= (+ main_offset 944) main_length), 86607#(<= (+ main_offset 932) main_length), 86606#(<= (+ main_offset 936) main_length), 86609#(<= (+ main_offset 924) main_length), 86608#(<= (+ main_offset 928) main_length), 86611#(<= (+ main_offset 916) main_length), 86610#(<= (+ main_offset 920) main_length), 86613#(<= (+ main_offset 908) main_length), 86612#(<= (+ main_offset 912) main_length), 86615#(<= (+ main_offset 900) main_length), 86614#(<= (+ main_offset 904) main_length), 86617#(<= (+ main_offset 892) main_length), 86616#(<= (+ main_offset 896) main_length), 86619#(<= (+ main_offset 884) main_length), 86618#(<= (+ main_offset 888) main_length), 86621#(<= (+ main_offset 876) main_length), 86620#(<= (+ main_offset 880) main_length), 86623#(<= (+ main_offset 868) main_length), 86622#(<= (+ main_offset 872) main_length), 86625#(<= (+ main_offset 860) main_length), 86624#(<= (+ main_offset 864) main_length), 86627#(<= (+ main_offset 852) main_length), 86626#(<= (+ main_offset 856) main_length), 86629#(<= (+ main_offset 844) main_length), 86628#(<= (+ main_offset 848) main_length), 86631#(<= (+ main_offset 836) main_length), 86630#(<= (+ main_offset 840) main_length), 86633#(<= (+ main_offset 828) main_length), 86632#(<= (+ main_offset 832) main_length), 86635#(<= (+ main_offset 820) main_length), 86634#(<= (+ main_offset 824) main_length), 86637#(<= (+ main_offset 812) main_length), 86636#(<= (+ main_offset 816) main_length), 86639#(<= (+ main_offset 804) main_length), 86638#(<= (+ main_offset 808) main_length), 86641#(<= (+ main_offset 796) main_length), 86640#(<= (+ main_offset 800) main_length), 86643#(<= (+ main_offset 788) main_length), 86642#(<= (+ main_offset 792) main_length), 86645#(<= (+ main_offset 780) main_length), 86644#(<= (+ main_offset 784) main_length), 86647#(<= (+ main_offset 772) main_length), 86646#(<= (+ main_offset 776) main_length), 86649#(<= (+ main_offset 764) main_length), 86648#(<= (+ main_offset 768) main_length), 86651#(<= (+ main_offset 756) main_length), 86650#(<= (+ main_offset 760) main_length), 86653#(<= (+ main_offset 748) main_length), 86652#(<= (+ main_offset 752) main_length), 86655#(<= (+ main_offset 740) main_length), 86654#(<= (+ main_offset 744) main_length), 86657#(<= (+ main_offset 732) main_length), 86656#(<= (+ main_offset 736) main_length), 86659#(<= (+ main_offset 724) main_length), 86658#(<= (+ main_offset 728) main_length), 86661#(<= (+ main_offset 716) main_length), 86660#(<= (+ main_offset 720) main_length), 86663#(<= (+ main_offset 708) main_length), 86662#(<= (+ main_offset 712) main_length), 86665#(<= (+ main_offset 700) main_length), 86664#(<= (+ main_offset 704) main_length), 86667#(<= (+ main_offset 692) main_length), 86666#(<= (+ main_offset 696) main_length), 86669#(<= (+ main_offset 684) main_length), 86668#(<= (+ main_offset 688) main_length), 86671#(<= (+ main_offset 676) main_length), 86670#(<= (+ main_offset 680) main_length), 86673#(<= (+ main_offset 668) main_length), 86672#(<= (+ main_offset 672) main_length), 86675#(<= (+ main_offset 660) main_length), 86674#(<= (+ main_offset 664) main_length), 86677#(<= (+ main_offset 652) main_length), 86676#(<= (+ main_offset 656) main_length), 86679#(<= (+ main_offset 644) main_length), 86678#(<= (+ main_offset 648) main_length), 86681#(<= (+ main_offset 636) main_length), 86680#(<= (+ main_offset 640) main_length), 86683#(<= (+ main_offset 628) main_length), 86682#(<= (+ main_offset 632) main_length), 86685#(<= (+ main_offset 620) main_length), 86684#(<= (+ main_offset 624) main_length), 86687#(<= (+ main_offset 612) main_length), 86686#(<= (+ main_offset 616) main_length), 86689#(<= (+ main_offset 604) main_length), 86688#(<= (+ main_offset 608) main_length), 86691#(<= (+ main_offset 596) main_length), 86690#(<= (+ main_offset 600) main_length), 86693#(<= (+ main_offset 588) main_length), 86692#(<= (+ main_offset 592) main_length), 86695#(<= (+ main_offset 580) main_length), 86694#(<= (+ main_offset 584) main_length), 86697#(<= (+ main_offset 572) main_length), 86696#(<= (+ main_offset 576) main_length), 86699#(<= (+ main_offset 564) main_length), 86698#(<= (+ main_offset 568) main_length), 86701#(<= (+ main_offset 556) main_length), 86700#(<= (+ main_offset 560) main_length), 86703#(<= (+ main_offset 548) main_length), 86702#(<= (+ main_offset 552) main_length), 86705#(<= (+ main_offset 540) main_length), 86704#(<= (+ main_offset 544) main_length), 86707#(<= (+ main_offset 532) main_length), 86706#(<= (+ main_offset 536) main_length), 86709#(<= (+ main_offset 524) main_length), 86708#(<= (+ main_offset 528) main_length), 86711#(<= (+ main_offset 516) main_length), 86710#(<= (+ main_offset 520) main_length), 86713#(<= (+ main_offset 508) main_length), 86712#(<= (+ main_offset 512) main_length), 86714#(<= (+ main_offset 504) main_length)] [2018-07-23 13:52:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 18632 backedges. 0 proven. 18632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:39,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 139 states [2018-07-23 13:52:39,352 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2018-07-23 13:52:39,352 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:52:39,352 INFO L87 Difference]: Start difference. First operand 276 states and 276 transitions. Second operand 139 states. [2018-07-23 13:52:39,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:39,770 INFO L93 Difference]: Finished difference Result 279 states and 279 transitions. [2018-07-23 13:52:39,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2018-07-23 13:52:39,770 INFO L78 Accepts]: Start accepts. Automaton has 139 states. Word has length 275 [2018-07-23 13:52:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:39,771 INFO L225 Difference]: With dead ends: 279 [2018-07-23 13:52:39,771 INFO L226 Difference]: Without dead ends: 278 [2018-07-23 13:52:39,772 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2018-07-23 13:52:39,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-07-23 13:52:39,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2018-07-23 13:52:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-07-23 13:52:39,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 278 transitions. [2018-07-23 13:52:39,778 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 278 transitions. Word has length 275 [2018-07-23 13:52:39,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:39,778 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 278 transitions. [2018-07-23 13:52:39,778 INFO L472 AbstractCegarLoop]: Interpolant automaton has 139 states. [2018-07-23 13:52:39,779 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 278 transitions. [2018-07-23 13:52:39,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2018-07-23 13:52:39,780 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:39,780 INFO L357 BasicCegarLoop]: trace histogram [138, 137, 1, 1] [2018-07-23 13:52:39,780 INFO L414 AbstractCegarLoop]: === Iteration 138 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:39,780 INFO L82 PathProgramCache]: Analyzing trace with hash -749440462, now seen corresponding path program 137 times [2018-07-23 13:52:39,780 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18906 backedges. 0 proven. 18906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,598 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:40,598 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2018-07-23 13:52:40,598 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,598 INFO L185 omatonBuilderFactory]: Interpolants [87829#true, 87831#(<= (+ main_offset 1048) main_length), 87830#false, 87833#(<= (+ main_offset 1040) main_length), 87832#(<= (+ main_offset 1044) main_length), 87835#(<= (+ main_offset 1032) main_length), 87834#(<= (+ main_offset 1036) main_length), 87837#(<= (+ main_offset 1024) main_length), 87836#(<= (+ main_offset 1028) main_length), 87839#(<= (+ main_offset 1016) main_length), 87838#(<= (+ main_offset 1020) main_length), 87841#(<= (+ main_offset 1008) main_length), 87840#(<= (+ main_offset 1012) main_length), 87843#(<= (+ main_offset 1000) main_length), 87842#(<= (+ main_offset 1004) main_length), 87845#(<= (+ main_offset 992) main_length), 87844#(<= (+ main_offset 996) main_length), 87847#(<= (+ main_offset 984) main_length), 87846#(<= (+ main_offset 988) main_length), 87849#(<= (+ main_offset 976) main_length), 87848#(<= (+ main_offset 980) main_length), 87851#(<= (+ main_offset 968) main_length), 87850#(<= (+ main_offset 972) main_length), 87853#(<= (+ main_offset 960) main_length), 87852#(<= (+ main_offset 964) main_length), 87855#(<= (+ main_offset 952) main_length), 87854#(<= (+ main_offset 956) main_length), 87857#(<= (+ main_offset 944) main_length), 87856#(<= (+ main_offset 948) main_length), 87859#(<= (+ main_offset 936) main_length), 87858#(<= (+ main_offset 940) main_length), 87861#(<= (+ main_offset 928) main_length), 87860#(<= (+ main_offset 932) main_length), 87863#(<= (+ main_offset 920) main_length), 87862#(<= (+ main_offset 924) main_length), 87865#(<= (+ main_offset 912) main_length), 87864#(<= (+ main_offset 916) main_length), 87867#(<= (+ main_offset 904) main_length), 87866#(<= (+ main_offset 908) main_length), 87869#(<= (+ main_offset 896) main_length), 87868#(<= (+ main_offset 900) main_length), 87871#(<= (+ main_offset 888) main_length), 87870#(<= (+ main_offset 892) main_length), 87873#(<= (+ main_offset 880) main_length), 87872#(<= (+ main_offset 884) main_length), 87875#(<= (+ main_offset 872) main_length), 87874#(<= (+ main_offset 876) main_length), 87877#(<= (+ main_offset 864) main_length), 87876#(<= (+ main_offset 868) main_length), 87879#(<= (+ main_offset 856) main_length), 87878#(<= (+ main_offset 860) main_length), 87881#(<= (+ main_offset 848) main_length), 87880#(<= (+ main_offset 852) main_length), 87883#(<= (+ main_offset 840) main_length), 87882#(<= (+ main_offset 844) main_length), 87885#(<= (+ main_offset 832) main_length), 87884#(<= (+ main_offset 836) main_length), 87887#(<= (+ main_offset 824) main_length), 87886#(<= (+ main_offset 828) main_length), 87889#(<= (+ main_offset 816) main_length), 87888#(<= (+ main_offset 820) main_length), 87891#(<= (+ main_offset 808) main_length), 87890#(<= (+ main_offset 812) main_length), 87893#(<= (+ main_offset 800) main_length), 87892#(<= (+ main_offset 804) main_length), 87895#(<= (+ main_offset 792) main_length), 87894#(<= (+ main_offset 796) main_length), 87897#(<= (+ main_offset 784) main_length), 87896#(<= (+ main_offset 788) main_length), 87899#(<= (+ main_offset 776) main_length), 87898#(<= (+ main_offset 780) main_length), 87901#(<= (+ main_offset 768) main_length), 87900#(<= (+ main_offset 772) main_length), 87903#(<= (+ main_offset 760) main_length), 87902#(<= (+ main_offset 764) main_length), 87905#(<= (+ main_offset 752) main_length), 87904#(<= (+ main_offset 756) main_length), 87907#(<= (+ main_offset 744) main_length), 87906#(<= (+ main_offset 748) main_length), 87909#(<= (+ main_offset 736) main_length), 87908#(<= (+ main_offset 740) main_length), 87911#(<= (+ main_offset 728) main_length), 87910#(<= (+ main_offset 732) main_length), 87913#(<= (+ main_offset 720) main_length), 87912#(<= (+ main_offset 724) main_length), 87915#(<= (+ main_offset 712) main_length), 87914#(<= (+ main_offset 716) main_length), 87917#(<= (+ main_offset 704) main_length), 87916#(<= (+ main_offset 708) main_length), 87919#(<= (+ main_offset 696) main_length), 87918#(<= (+ main_offset 700) main_length), 87921#(<= (+ main_offset 688) main_length), 87920#(<= (+ main_offset 692) main_length), 87923#(<= (+ main_offset 680) main_length), 87922#(<= (+ main_offset 684) main_length), 87925#(<= (+ main_offset 672) main_length), 87924#(<= (+ main_offset 676) main_length), 87927#(<= (+ main_offset 664) main_length), 87926#(<= (+ main_offset 668) main_length), 87929#(<= (+ main_offset 656) main_length), 87928#(<= (+ main_offset 660) main_length), 87931#(<= (+ main_offset 648) main_length), 87930#(<= (+ main_offset 652) main_length), 87933#(<= (+ main_offset 640) main_length), 87932#(<= (+ main_offset 644) main_length), 87935#(<= (+ main_offset 632) main_length), 87934#(<= (+ main_offset 636) main_length), 87937#(<= (+ main_offset 624) main_length), 87936#(<= (+ main_offset 628) main_length), 87939#(<= (+ main_offset 616) main_length), 87938#(<= (+ main_offset 620) main_length), 87941#(<= (+ main_offset 608) main_length), 87940#(<= (+ main_offset 612) main_length), 87943#(<= (+ main_offset 600) main_length), 87942#(<= (+ main_offset 604) main_length), 87945#(<= (+ main_offset 592) main_length), 87944#(<= (+ main_offset 596) main_length), 87947#(<= (+ main_offset 584) main_length), 87946#(<= (+ main_offset 588) main_length), 87949#(<= (+ main_offset 576) main_length), 87948#(<= (+ main_offset 580) main_length), 87951#(<= (+ main_offset 568) main_length), 87950#(<= (+ main_offset 572) main_length), 87953#(<= (+ main_offset 560) main_length), 87952#(<= (+ main_offset 564) main_length), 87955#(<= (+ main_offset 552) main_length), 87954#(<= (+ main_offset 556) main_length), 87957#(<= (+ main_offset 544) main_length), 87956#(<= (+ main_offset 548) main_length), 87959#(<= (+ main_offset 536) main_length), 87958#(<= (+ main_offset 540) main_length), 87961#(<= (+ main_offset 528) main_length), 87960#(<= (+ main_offset 532) main_length), 87963#(<= (+ main_offset 520) main_length), 87962#(<= (+ main_offset 524) main_length), 87965#(<= (+ main_offset 512) main_length), 87964#(<= (+ main_offset 516) main_length), 87967#(<= (+ main_offset 504) main_length), 87966#(<= (+ main_offset 508) main_length), 87968#(<= (+ main_offset 500) main_length)] [2018-07-23 13:52:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 18906 backedges. 0 proven. 18906 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:40,600 INFO L450 AbstractCegarLoop]: Interpolant automaton has 140 states [2018-07-23 13:52:40,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2018-07-23 13:52:40,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:52:40,601 INFO L87 Difference]: Start difference. First operand 278 states and 278 transitions. Second operand 140 states. [2018-07-23 13:52:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:41,068 INFO L93 Difference]: Finished difference Result 281 states and 281 transitions. [2018-07-23 13:52:41,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2018-07-23 13:52:41,068 INFO L78 Accepts]: Start accepts. Automaton has 140 states. Word has length 277 [2018-07-23 13:52:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:41,068 INFO L225 Difference]: With dead ends: 281 [2018-07-23 13:52:41,068 INFO L226 Difference]: Without dead ends: 280 [2018-07-23 13:52:41,069 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2018-07-23 13:52:41,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2018-07-23 13:52:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2018-07-23 13:52:41,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2018-07-23 13:52:41,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 280 transitions. [2018-07-23 13:52:41,072 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 280 transitions. Word has length 277 [2018-07-23 13:52:41,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:41,073 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 280 transitions. [2018-07-23 13:52:41,073 INFO L472 AbstractCegarLoop]: Interpolant automaton has 140 states. [2018-07-23 13:52:41,073 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 280 transitions. [2018-07-23 13:52:41,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-07-23 13:52:41,073 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:41,074 INFO L357 BasicCegarLoop]: trace histogram [139, 138, 1, 1] [2018-07-23 13:52:41,074 INFO L414 AbstractCegarLoop]: === Iteration 139 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1342222836, now seen corresponding path program 138 times [2018-07-23 13:52:41,074 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 19182 backedges. 0 proven. 19182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,795 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:41,795 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2018-07-23 13:52:41,795 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,796 INFO L185 omatonBuilderFactory]: Interpolants [89091#true, 89093#(<= (+ main_offset 1048) main_length), 89092#false, 89095#(<= (+ main_offset 1040) main_length), 89094#(<= (+ main_offset 1044) main_length), 89097#(<= (+ main_offset 1032) main_length), 89096#(<= (+ main_offset 1036) main_length), 89099#(<= (+ main_offset 1024) main_length), 89098#(<= (+ main_offset 1028) main_length), 89101#(<= (+ main_offset 1016) main_length), 89100#(<= (+ main_offset 1020) main_length), 89103#(<= (+ main_offset 1008) main_length), 89102#(<= (+ main_offset 1012) main_length), 89105#(<= (+ main_offset 1000) main_length), 89104#(<= (+ main_offset 1004) main_length), 89107#(<= (+ main_offset 992) main_length), 89106#(<= (+ main_offset 996) main_length), 89109#(<= (+ main_offset 984) main_length), 89108#(<= (+ main_offset 988) main_length), 89111#(<= (+ main_offset 976) main_length), 89110#(<= (+ main_offset 980) main_length), 89113#(<= (+ main_offset 968) main_length), 89112#(<= (+ main_offset 972) main_length), 89115#(<= (+ main_offset 960) main_length), 89114#(<= (+ main_offset 964) main_length), 89117#(<= (+ main_offset 952) main_length), 89116#(<= (+ main_offset 956) main_length), 89119#(<= (+ main_offset 944) main_length), 89118#(<= (+ main_offset 948) main_length), 89121#(<= (+ main_offset 936) main_length), 89120#(<= (+ main_offset 940) main_length), 89123#(<= (+ main_offset 928) main_length), 89122#(<= (+ main_offset 932) main_length), 89125#(<= (+ main_offset 920) main_length), 89124#(<= (+ main_offset 924) main_length), 89127#(<= (+ main_offset 912) main_length), 89126#(<= (+ main_offset 916) main_length), 89129#(<= (+ main_offset 904) main_length), 89128#(<= (+ main_offset 908) main_length), 89131#(<= (+ main_offset 896) main_length), 89130#(<= (+ main_offset 900) main_length), 89133#(<= (+ main_offset 888) main_length), 89132#(<= (+ main_offset 892) main_length), 89135#(<= (+ main_offset 880) main_length), 89134#(<= (+ main_offset 884) main_length), 89137#(<= (+ main_offset 872) main_length), 89136#(<= (+ main_offset 876) main_length), 89139#(<= (+ main_offset 864) main_length), 89138#(<= (+ main_offset 868) main_length), 89141#(<= (+ main_offset 856) main_length), 89140#(<= (+ main_offset 860) main_length), 89143#(<= (+ main_offset 848) main_length), 89142#(<= (+ main_offset 852) main_length), 89145#(<= (+ main_offset 840) main_length), 89144#(<= (+ main_offset 844) main_length), 89147#(<= (+ main_offset 832) main_length), 89146#(<= (+ main_offset 836) main_length), 89149#(<= (+ main_offset 824) main_length), 89148#(<= (+ main_offset 828) main_length), 89151#(<= (+ main_offset 816) main_length), 89150#(<= (+ main_offset 820) main_length), 89153#(<= (+ main_offset 808) main_length), 89152#(<= (+ main_offset 812) main_length), 89155#(<= (+ main_offset 800) main_length), 89154#(<= (+ main_offset 804) main_length), 89157#(<= (+ main_offset 792) main_length), 89156#(<= (+ main_offset 796) main_length), 89159#(<= (+ main_offset 784) main_length), 89158#(<= (+ main_offset 788) main_length), 89161#(<= (+ main_offset 776) main_length), 89160#(<= (+ main_offset 780) main_length), 89163#(<= (+ main_offset 768) main_length), 89162#(<= (+ main_offset 772) main_length), 89165#(<= (+ main_offset 760) main_length), 89164#(<= (+ main_offset 764) main_length), 89167#(<= (+ main_offset 752) main_length), 89166#(<= (+ main_offset 756) main_length), 89169#(<= (+ main_offset 744) main_length), 89168#(<= (+ main_offset 748) main_length), 89171#(<= (+ main_offset 736) main_length), 89170#(<= (+ main_offset 740) main_length), 89173#(<= (+ main_offset 728) main_length), 89172#(<= (+ main_offset 732) main_length), 89175#(<= (+ main_offset 720) main_length), 89174#(<= (+ main_offset 724) main_length), 89177#(<= (+ main_offset 712) main_length), 89176#(<= (+ main_offset 716) main_length), 89179#(<= (+ main_offset 704) main_length), 89178#(<= (+ main_offset 708) main_length), 89181#(<= (+ main_offset 696) main_length), 89180#(<= (+ main_offset 700) main_length), 89183#(<= (+ main_offset 688) main_length), 89182#(<= (+ main_offset 692) main_length), 89185#(<= (+ main_offset 680) main_length), 89184#(<= (+ main_offset 684) main_length), 89187#(<= (+ main_offset 672) main_length), 89186#(<= (+ main_offset 676) main_length), 89189#(<= (+ main_offset 664) main_length), 89188#(<= (+ main_offset 668) main_length), 89191#(<= (+ main_offset 656) main_length), 89190#(<= (+ main_offset 660) main_length), 89193#(<= (+ main_offset 648) main_length), 89192#(<= (+ main_offset 652) main_length), 89195#(<= (+ main_offset 640) main_length), 89194#(<= (+ main_offset 644) main_length), 89197#(<= (+ main_offset 632) main_length), 89196#(<= (+ main_offset 636) main_length), 89199#(<= (+ main_offset 624) main_length), 89198#(<= (+ main_offset 628) main_length), 89201#(<= (+ main_offset 616) main_length), 89200#(<= (+ main_offset 620) main_length), 89203#(<= (+ main_offset 608) main_length), 89202#(<= (+ main_offset 612) main_length), 89205#(<= (+ main_offset 600) main_length), 89204#(<= (+ main_offset 604) main_length), 89207#(<= (+ main_offset 592) main_length), 89206#(<= (+ main_offset 596) main_length), 89209#(<= (+ main_offset 584) main_length), 89208#(<= (+ main_offset 588) main_length), 89211#(<= (+ main_offset 576) main_length), 89210#(<= (+ main_offset 580) main_length), 89213#(<= (+ main_offset 568) main_length), 89212#(<= (+ main_offset 572) main_length), 89215#(<= (+ main_offset 560) main_length), 89214#(<= (+ main_offset 564) main_length), 89217#(<= (+ main_offset 552) main_length), 89216#(<= (+ main_offset 556) main_length), 89219#(<= (+ main_offset 544) main_length), 89218#(<= (+ main_offset 548) main_length), 89221#(<= (+ main_offset 536) main_length), 89220#(<= (+ main_offset 540) main_length), 89223#(<= (+ main_offset 528) main_length), 89222#(<= (+ main_offset 532) main_length), 89225#(<= (+ main_offset 520) main_length), 89224#(<= (+ main_offset 524) main_length), 89227#(<= (+ main_offset 512) main_length), 89226#(<= (+ main_offset 516) main_length), 89229#(<= (+ main_offset 504) main_length), 89228#(<= (+ main_offset 508) main_length), 89231#(<= (+ main_offset 496) main_length), 89230#(<= (+ main_offset 500) main_length)] [2018-07-23 13:52:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 19182 backedges. 0 proven. 19182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:41,797 INFO L450 AbstractCegarLoop]: Interpolant automaton has 141 states [2018-07-23 13:52:41,798 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2018-07-23 13:52:41,799 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:52:41,799 INFO L87 Difference]: Start difference. First operand 280 states and 280 transitions. Second operand 141 states. [2018-07-23 13:52:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:42,307 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2018-07-23 13:52:42,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2018-07-23 13:52:42,307 INFO L78 Accepts]: Start accepts. Automaton has 141 states. Word has length 279 [2018-07-23 13:52:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:42,308 INFO L225 Difference]: With dead ends: 283 [2018-07-23 13:52:42,308 INFO L226 Difference]: Without dead ends: 282 [2018-07-23 13:52:42,309 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2018-07-23 13:52:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2018-07-23 13:52:42,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2018-07-23 13:52:42,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2018-07-23 13:52:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 282 transitions. [2018-07-23 13:52:42,313 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 282 transitions. Word has length 279 [2018-07-23 13:52:42,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:42,313 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 282 transitions. [2018-07-23 13:52:42,313 INFO L472 AbstractCegarLoop]: Interpolant automaton has 141 states. [2018-07-23 13:52:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 282 transitions. [2018-07-23 13:52:42,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-07-23 13:52:42,314 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:42,314 INFO L357 BasicCegarLoop]: trace histogram [140, 139, 1, 1] [2018-07-23 13:52:42,314 INFO L414 AbstractCegarLoop]: === Iteration 140 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:42,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1385957686, now seen corresponding path program 139 times [2018-07-23 13:52:42,314 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 19460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:43,043 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:43,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2018-07-23 13:52:43,043 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:43,044 INFO L185 omatonBuilderFactory]: Interpolants [90369#(<= (+ main_offset 1028) main_length), 90368#(<= (+ main_offset 1032) main_length), 90371#(<= (+ main_offset 1020) main_length), 90370#(<= (+ main_offset 1024) main_length), 90373#(<= (+ main_offset 1012) main_length), 90372#(<= (+ main_offset 1016) main_length), 90375#(<= (+ main_offset 1004) main_length), 90374#(<= (+ main_offset 1008) main_length), 90377#(<= (+ main_offset 996) main_length), 90376#(<= (+ main_offset 1000) main_length), 90379#(<= (+ main_offset 988) main_length), 90378#(<= (+ main_offset 992) main_length), 90381#(<= (+ main_offset 980) main_length), 90380#(<= (+ main_offset 984) main_length), 90383#(<= (+ main_offset 972) main_length), 90382#(<= (+ main_offset 976) main_length), 90385#(<= (+ main_offset 964) main_length), 90384#(<= (+ main_offset 968) main_length), 90387#(<= (+ main_offset 956) main_length), 90386#(<= (+ main_offset 960) main_length), 90389#(<= (+ main_offset 948) main_length), 90388#(<= (+ main_offset 952) main_length), 90391#(<= (+ main_offset 940) main_length), 90390#(<= (+ main_offset 944) main_length), 90393#(<= (+ main_offset 932) main_length), 90392#(<= (+ main_offset 936) main_length), 90395#(<= (+ main_offset 924) main_length), 90394#(<= (+ main_offset 928) main_length), 90397#(<= (+ main_offset 916) main_length), 90396#(<= (+ main_offset 920) main_length), 90399#(<= (+ main_offset 908) main_length), 90398#(<= (+ main_offset 912) main_length), 90401#(<= (+ main_offset 900) main_length), 90400#(<= (+ main_offset 904) main_length), 90403#(<= (+ main_offset 892) main_length), 90402#(<= (+ main_offset 896) main_length), 90405#(<= (+ main_offset 884) main_length), 90404#(<= (+ main_offset 888) main_length), 90407#(<= (+ main_offset 876) main_length), 90406#(<= (+ main_offset 880) main_length), 90409#(<= (+ main_offset 868) main_length), 90408#(<= (+ main_offset 872) main_length), 90411#(<= (+ main_offset 860) main_length), 90410#(<= (+ main_offset 864) main_length), 90413#(<= (+ main_offset 852) main_length), 90412#(<= (+ main_offset 856) main_length), 90415#(<= (+ main_offset 844) main_length), 90414#(<= (+ main_offset 848) main_length), 90417#(<= (+ main_offset 836) main_length), 90416#(<= (+ main_offset 840) main_length), 90419#(<= (+ main_offset 828) main_length), 90418#(<= (+ main_offset 832) main_length), 90421#(<= (+ main_offset 820) main_length), 90420#(<= (+ main_offset 824) main_length), 90423#(<= (+ main_offset 812) main_length), 90422#(<= (+ main_offset 816) main_length), 90425#(<= (+ main_offset 804) main_length), 90424#(<= (+ main_offset 808) main_length), 90427#(<= (+ main_offset 796) main_length), 90426#(<= (+ main_offset 800) main_length), 90429#(<= (+ main_offset 788) main_length), 90428#(<= (+ main_offset 792) main_length), 90431#(<= (+ main_offset 780) main_length), 90430#(<= (+ main_offset 784) main_length), 90433#(<= (+ main_offset 772) main_length), 90432#(<= (+ main_offset 776) main_length), 90435#(<= (+ main_offset 764) main_length), 90434#(<= (+ main_offset 768) main_length), 90437#(<= (+ main_offset 756) main_length), 90436#(<= (+ main_offset 760) main_length), 90439#(<= (+ main_offset 748) main_length), 90438#(<= (+ main_offset 752) main_length), 90441#(<= (+ main_offset 740) main_length), 90440#(<= (+ main_offset 744) main_length), 90443#(<= (+ main_offset 732) main_length), 90442#(<= (+ main_offset 736) main_length), 90445#(<= (+ main_offset 724) main_length), 90444#(<= (+ main_offset 728) main_length), 90447#(<= (+ main_offset 716) main_length), 90446#(<= (+ main_offset 720) main_length), 90449#(<= (+ main_offset 708) main_length), 90448#(<= (+ main_offset 712) main_length), 90451#(<= (+ main_offset 700) main_length), 90450#(<= (+ main_offset 704) main_length), 90453#(<= (+ main_offset 692) main_length), 90452#(<= (+ main_offset 696) main_length), 90455#(<= (+ main_offset 684) main_length), 90454#(<= (+ main_offset 688) main_length), 90457#(<= (+ main_offset 676) main_length), 90456#(<= (+ main_offset 680) main_length), 90459#(<= (+ main_offset 668) main_length), 90458#(<= (+ main_offset 672) main_length), 90461#(<= (+ main_offset 660) main_length), 90460#(<= (+ main_offset 664) main_length), 90463#(<= (+ main_offset 652) main_length), 90462#(<= (+ main_offset 656) main_length), 90465#(<= (+ main_offset 644) main_length), 90464#(<= (+ main_offset 648) main_length), 90467#(<= (+ main_offset 636) main_length), 90466#(<= (+ main_offset 640) main_length), 90469#(<= (+ main_offset 628) main_length), 90468#(<= (+ main_offset 632) main_length), 90471#(<= (+ main_offset 620) main_length), 90470#(<= (+ main_offset 624) main_length), 90473#(<= (+ main_offset 612) main_length), 90472#(<= (+ main_offset 616) main_length), 90475#(<= (+ main_offset 604) main_length), 90474#(<= (+ main_offset 608) main_length), 90477#(<= (+ main_offset 596) main_length), 90476#(<= (+ main_offset 600) main_length), 90479#(<= (+ main_offset 588) main_length), 90478#(<= (+ main_offset 592) main_length), 90481#(<= (+ main_offset 580) main_length), 90480#(<= (+ main_offset 584) main_length), 90483#(<= (+ main_offset 572) main_length), 90482#(<= (+ main_offset 576) main_length), 90485#(<= (+ main_offset 564) main_length), 90484#(<= (+ main_offset 568) main_length), 90487#(<= (+ main_offset 556) main_length), 90486#(<= (+ main_offset 560) main_length), 90489#(<= (+ main_offset 548) main_length), 90488#(<= (+ main_offset 552) main_length), 90491#(<= (+ main_offset 540) main_length), 90490#(<= (+ main_offset 544) main_length), 90493#(<= (+ main_offset 532) main_length), 90492#(<= (+ main_offset 536) main_length), 90495#(<= (+ main_offset 524) main_length), 90494#(<= (+ main_offset 528) main_length), 90497#(<= (+ main_offset 516) main_length), 90496#(<= (+ main_offset 520) main_length), 90499#(<= (+ main_offset 508) main_length), 90498#(<= (+ main_offset 512) main_length), 90501#(<= (+ main_offset 500) main_length), 90500#(<= (+ main_offset 504) main_length), 90503#(<= (+ main_offset 492) main_length), 90502#(<= (+ main_offset 496) main_length), 90363#false, 90362#true, 90365#(<= (+ main_offset 1044) main_length), 90364#(<= (+ main_offset 1048) main_length), 90367#(<= (+ main_offset 1036) main_length), 90366#(<= (+ main_offset 1040) main_length)] [2018-07-23 13:52:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 19460 backedges. 0 proven. 19460 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:43,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 142 states [2018-07-23 13:52:43,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2018-07-23 13:52:43,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:52:43,047 INFO L87 Difference]: Start difference. First operand 282 states and 282 transitions. Second operand 142 states. [2018-07-23 13:52:43,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:43,563 INFO L93 Difference]: Finished difference Result 285 states and 285 transitions. [2018-07-23 13:52:43,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2018-07-23 13:52:43,563 INFO L78 Accepts]: Start accepts. Automaton has 142 states. Word has length 281 [2018-07-23 13:52:43,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:43,564 INFO L225 Difference]: With dead ends: 285 [2018-07-23 13:52:43,564 INFO L226 Difference]: Without dead ends: 284 [2018-07-23 13:52:43,565 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2018-07-23 13:52:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-07-23 13:52:43,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2018-07-23 13:52:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2018-07-23 13:52:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 284 transitions. [2018-07-23 13:52:43,568 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 284 transitions. Word has length 281 [2018-07-23 13:52:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:43,569 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 284 transitions. [2018-07-23 13:52:43,569 INFO L472 AbstractCegarLoop]: Interpolant automaton has 142 states. [2018-07-23 13:52:43,569 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 284 transitions. [2018-07-23 13:52:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-07-23 13:52:43,569 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:43,569 INFO L357 BasicCegarLoop]: trace histogram [141, 140, 1, 1] [2018-07-23 13:52:43,570 INFO L414 AbstractCegarLoop]: === Iteration 141 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:43,570 INFO L82 PathProgramCache]: Analyzing trace with hash 465475576, now seen corresponding path program 140 times [2018-07-23 13:52:43,570 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:44,318 INFO L134 CoverageAnalysis]: Checked inductivity of 19740 backedges. 0 proven. 19740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,319 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:44,319 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2018-07-23 13:52:44,319 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:44,319 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 13:52:44,319 INFO L185 omatonBuilderFactory]: Interpolants [91649#(<= (+ main_offset 1028) main_length), 91648#(<= (+ main_offset 1032) main_length), 91651#(<= (+ main_offset 1020) main_length), 91650#(<= (+ main_offset 1024) main_length), 91653#(<= (+ main_offset 1012) main_length), 91652#(<= (+ main_offset 1016) main_length), 91655#(<= (+ main_offset 1004) main_length), 91654#(<= (+ main_offset 1008) main_length), 91657#(<= (+ main_offset 996) main_length), 91656#(<= (+ main_offset 1000) main_length), 91659#(<= (+ main_offset 988) main_length), 91658#(<= (+ main_offset 992) main_length), 91661#(<= (+ main_offset 980) main_length), 91660#(<= (+ main_offset 984) main_length), 91663#(<= (+ main_offset 972) main_length), 91662#(<= (+ main_offset 976) main_length), 91665#(<= (+ main_offset 964) main_length), 91664#(<= (+ main_offset 968) main_length), 91667#(<= (+ main_offset 956) main_length), 91666#(<= (+ main_offset 960) main_length), 91669#(<= (+ main_offset 948) main_length), 91668#(<= (+ main_offset 952) main_length), 91671#(<= (+ main_offset 940) main_length), 91670#(<= (+ main_offset 944) main_length), 91673#(<= (+ main_offset 932) main_length), 91672#(<= (+ main_offset 936) main_length), 91675#(<= (+ main_offset 924) main_length), 91674#(<= (+ main_offset 928) main_length), 91677#(<= (+ main_offset 916) main_length), 91676#(<= (+ main_offset 920) main_length), 91679#(<= (+ main_offset 908) main_length), 91678#(<= (+ main_offset 912) main_length), 91681#(<= (+ main_offset 900) main_length), 91680#(<= (+ main_offset 904) main_length), 91683#(<= (+ main_offset 892) main_length), 91682#(<= (+ main_offset 896) main_length), 91685#(<= (+ main_offset 884) main_length), 91684#(<= (+ main_offset 888) main_length), 91687#(<= (+ main_offset 876) main_length), 91686#(<= (+ main_offset 880) main_length), 91689#(<= (+ main_offset 868) main_length), 91688#(<= (+ main_offset 872) main_length), 91691#(<= (+ main_offset 860) main_length), 91690#(<= (+ main_offset 864) main_length), 91693#(<= (+ main_offset 852) main_length), 91692#(<= (+ main_offset 856) main_length), 91695#(<= (+ main_offset 844) main_length), 91694#(<= (+ main_offset 848) main_length), 91697#(<= (+ main_offset 836) main_length), 91696#(<= (+ main_offset 840) main_length), 91699#(<= (+ main_offset 828) main_length), 91698#(<= (+ main_offset 832) main_length), 91701#(<= (+ main_offset 820) main_length), 91700#(<= (+ main_offset 824) main_length), 91703#(<= (+ main_offset 812) main_length), 91702#(<= (+ main_offset 816) main_length), 91705#(<= (+ main_offset 804) main_length), 91704#(<= (+ main_offset 808) main_length), 91707#(<= (+ main_offset 796) main_length), 91706#(<= (+ main_offset 800) main_length), 91709#(<= (+ main_offset 788) main_length), 91708#(<= (+ main_offset 792) main_length), 91711#(<= (+ main_offset 780) main_length), 91710#(<= (+ main_offset 784) main_length), 91713#(<= (+ main_offset 772) main_length), 91712#(<= (+ main_offset 776) main_length), 91715#(<= (+ main_offset 764) main_length), 91714#(<= (+ main_offset 768) main_length), 91717#(<= (+ main_offset 756) main_length), 91716#(<= (+ main_offset 760) main_length), 91719#(<= (+ main_offset 748) main_length), 91718#(<= (+ main_offset 752) main_length), 91721#(<= (+ main_offset 740) main_length), 91720#(<= (+ main_offset 744) main_length), 91723#(<= (+ main_offset 732) main_length), 91722#(<= (+ main_offset 736) main_length), 91725#(<= (+ main_offset 724) main_length), 91724#(<= (+ main_offset 728) main_length), 91727#(<= (+ main_offset 716) main_length), 91726#(<= (+ main_offset 720) main_length), 91729#(<= (+ main_offset 708) main_length), 91728#(<= (+ main_offset 712) main_length), 91731#(<= (+ main_offset 700) main_length), 91730#(<= (+ main_offset 704) main_length), 91733#(<= (+ main_offset 692) main_length), 91732#(<= (+ main_offset 696) main_length), 91735#(<= (+ main_offset 684) main_length), 91734#(<= (+ main_offset 688) main_length), 91737#(<= (+ main_offset 676) main_length), 91736#(<= (+ main_offset 680) main_length), 91739#(<= (+ main_offset 668) main_length), 91738#(<= (+ main_offset 672) main_length), 91741#(<= (+ main_offset 660) main_length), 91740#(<= (+ main_offset 664) main_length), 91743#(<= (+ main_offset 652) main_length), 91742#(<= (+ main_offset 656) main_length), 91745#(<= (+ main_offset 644) main_length), 91744#(<= (+ main_offset 648) main_length), 91747#(<= (+ main_offset 636) main_length), 91746#(<= (+ main_offset 640) main_length), 91749#(<= (+ main_offset 628) main_length), 91748#(<= (+ main_offset 632) main_length), 91751#(<= (+ main_offset 620) main_length), 91750#(<= (+ main_offset 624) main_length), 91753#(<= (+ main_offset 612) main_length), 91752#(<= (+ main_offset 616) main_length), 91755#(<= (+ main_offset 604) main_length), 91754#(<= (+ main_offset 608) main_length), 91757#(<= (+ main_offset 596) main_length), 91756#(<= (+ main_offset 600) main_length), 91759#(<= (+ main_offset 588) main_length), 91758#(<= (+ main_offset 592) main_length), 91761#(<= (+ main_offset 580) main_length), 91760#(<= (+ main_offset 584) main_length), 91763#(<= (+ main_offset 572) main_length), 91762#(<= (+ main_offset 576) main_length), 91765#(<= (+ main_offset 564) main_length), 91764#(<= (+ main_offset 568) main_length), 91767#(<= (+ main_offset 556) main_length), 91766#(<= (+ main_offset 560) main_length), 91769#(<= (+ main_offset 548) main_length), 91768#(<= (+ main_offset 552) main_length), 91771#(<= (+ main_offset 540) main_length), 91770#(<= (+ main_offset 544) main_length), 91773#(<= (+ main_offset 532) main_length), 91772#(<= (+ main_offset 536) main_length), 91775#(<= (+ main_offset 524) main_length), 91774#(<= (+ main_offset 528) main_length), 91777#(<= (+ main_offset 516) main_length), 91776#(<= (+ main_offset 520) main_length), 91779#(<= (+ main_offset 508) main_length), 91778#(<= (+ main_offset 512) main_length), 91781#(<= (+ main_offset 500) main_length), 91780#(<= (+ main_offset 504) main_length), 91783#(<= (+ main_offset 492) main_length), 91782#(<= (+ main_offset 496) main_length), 91784#(<= (+ main_offset 488) main_length), 91643#false, 91642#true, 91645#(<= (+ main_offset 1044) main_length), 91644#(<= (+ main_offset 1048) main_length), 91647#(<= (+ main_offset 1036) main_length), 91646#(<= (+ main_offset 1040) main_length)] [2018-07-23 13:52:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 19740 backedges. 0 proven. 19740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:44,321 INFO L450 AbstractCegarLoop]: Interpolant automaton has 143 states [2018-07-23 13:52:44,322 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2018-07-23 13:52:44,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:52:44,323 INFO L87 Difference]: Start difference. First operand 284 states and 284 transitions. Second operand 143 states. [2018-07-23 13:52:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:44,863 INFO L93 Difference]: Finished difference Result 287 states and 287 transitions. [2018-07-23 13:52:44,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2018-07-23 13:52:44,864 INFO L78 Accepts]: Start accepts. Automaton has 143 states. Word has length 283 [2018-07-23 13:52:44,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:44,864 INFO L225 Difference]: With dead ends: 287 [2018-07-23 13:52:44,865 INFO L226 Difference]: Without dead ends: 286 [2018-07-23 13:52:44,866 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2018-07-23 13:52:44,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-07-23 13:52:44,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2018-07-23 13:52:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-07-23 13:52:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2018-07-23 13:52:44,871 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 283 [2018-07-23 13:52:44,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:44,871 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2018-07-23 13:52:44,871 INFO L472 AbstractCegarLoop]: Interpolant automaton has 143 states. [2018-07-23 13:52:44,871 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2018-07-23 13:52:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-23 13:52:44,872 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:44,873 INFO L357 BasicCegarLoop]: trace histogram [142, 141, 1, 1] [2018-07-23 13:52:44,873 INFO L414 AbstractCegarLoop]: === Iteration 142 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:44,873 INFO L82 PathProgramCache]: Analyzing trace with hash 645430842, now seen corresponding path program 141 times [2018-07-23 13:52:44,873 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:44,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 20022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,609 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:45,609 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2018-07-23 13:52:45,610 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,610 INFO L185 omatonBuilderFactory]: Interpolants [92931#true, 92933#(<= (+ main_offset 1048) main_length), 92932#false, 92935#(<= (+ main_offset 1040) main_length), 92934#(<= (+ main_offset 1044) main_length), 92937#(<= (+ main_offset 1032) main_length), 92936#(<= (+ main_offset 1036) main_length), 92939#(<= (+ main_offset 1024) main_length), 92938#(<= (+ main_offset 1028) main_length), 92941#(<= (+ main_offset 1016) main_length), 92940#(<= (+ main_offset 1020) main_length), 92943#(<= (+ main_offset 1008) main_length), 92942#(<= (+ main_offset 1012) main_length), 92945#(<= (+ main_offset 1000) main_length), 92944#(<= (+ main_offset 1004) main_length), 92947#(<= (+ main_offset 992) main_length), 92946#(<= (+ main_offset 996) main_length), 92949#(<= (+ main_offset 984) main_length), 92948#(<= (+ main_offset 988) main_length), 92951#(<= (+ main_offset 976) main_length), 92950#(<= (+ main_offset 980) main_length), 92953#(<= (+ main_offset 968) main_length), 92952#(<= (+ main_offset 972) main_length), 92955#(<= (+ main_offset 960) main_length), 92954#(<= (+ main_offset 964) main_length), 92957#(<= (+ main_offset 952) main_length), 92956#(<= (+ main_offset 956) main_length), 92959#(<= (+ main_offset 944) main_length), 92958#(<= (+ main_offset 948) main_length), 92961#(<= (+ main_offset 936) main_length), 92960#(<= (+ main_offset 940) main_length), 92963#(<= (+ main_offset 928) main_length), 92962#(<= (+ main_offset 932) main_length), 92965#(<= (+ main_offset 920) main_length), 92964#(<= (+ main_offset 924) main_length), 92967#(<= (+ main_offset 912) main_length), 92966#(<= (+ main_offset 916) main_length), 92969#(<= (+ main_offset 904) main_length), 92968#(<= (+ main_offset 908) main_length), 92971#(<= (+ main_offset 896) main_length), 92970#(<= (+ main_offset 900) main_length), 92973#(<= (+ main_offset 888) main_length), 92972#(<= (+ main_offset 892) main_length), 92975#(<= (+ main_offset 880) main_length), 92974#(<= (+ main_offset 884) main_length), 92977#(<= (+ main_offset 872) main_length), 92976#(<= (+ main_offset 876) main_length), 92979#(<= (+ main_offset 864) main_length), 92978#(<= (+ main_offset 868) main_length), 92981#(<= (+ main_offset 856) main_length), 92980#(<= (+ main_offset 860) main_length), 92983#(<= (+ main_offset 848) main_length), 92982#(<= (+ main_offset 852) main_length), 92985#(<= (+ main_offset 840) main_length), 92984#(<= (+ main_offset 844) main_length), 92987#(<= (+ main_offset 832) main_length), 92986#(<= (+ main_offset 836) main_length), 92989#(<= (+ main_offset 824) main_length), 92988#(<= (+ main_offset 828) main_length), 92991#(<= (+ main_offset 816) main_length), 92990#(<= (+ main_offset 820) main_length), 92993#(<= (+ main_offset 808) main_length), 92992#(<= (+ main_offset 812) main_length), 92995#(<= (+ main_offset 800) main_length), 92994#(<= (+ main_offset 804) main_length), 92997#(<= (+ main_offset 792) main_length), 92996#(<= (+ main_offset 796) main_length), 92999#(<= (+ main_offset 784) main_length), 92998#(<= (+ main_offset 788) main_length), 93001#(<= (+ main_offset 776) main_length), 93000#(<= (+ main_offset 780) main_length), 93003#(<= (+ main_offset 768) main_length), 93002#(<= (+ main_offset 772) main_length), 93005#(<= (+ main_offset 760) main_length), 93004#(<= (+ main_offset 764) main_length), 93007#(<= (+ main_offset 752) main_length), 93006#(<= (+ main_offset 756) main_length), 93009#(<= (+ main_offset 744) main_length), 93008#(<= (+ main_offset 748) main_length), 93011#(<= (+ main_offset 736) main_length), 93010#(<= (+ main_offset 740) main_length), 93013#(<= (+ main_offset 728) main_length), 93012#(<= (+ main_offset 732) main_length), 93015#(<= (+ main_offset 720) main_length), 93014#(<= (+ main_offset 724) main_length), 93017#(<= (+ main_offset 712) main_length), 93016#(<= (+ main_offset 716) main_length), 93019#(<= (+ main_offset 704) main_length), 93018#(<= (+ main_offset 708) main_length), 93021#(<= (+ main_offset 696) main_length), 93020#(<= (+ main_offset 700) main_length), 93023#(<= (+ main_offset 688) main_length), 93022#(<= (+ main_offset 692) main_length), 93025#(<= (+ main_offset 680) main_length), 93024#(<= (+ main_offset 684) main_length), 93027#(<= (+ main_offset 672) main_length), 93026#(<= (+ main_offset 676) main_length), 93029#(<= (+ main_offset 664) main_length), 93028#(<= (+ main_offset 668) main_length), 93031#(<= (+ main_offset 656) main_length), 93030#(<= (+ main_offset 660) main_length), 93033#(<= (+ main_offset 648) main_length), 93032#(<= (+ main_offset 652) main_length), 93035#(<= (+ main_offset 640) main_length), 93034#(<= (+ main_offset 644) main_length), 93037#(<= (+ main_offset 632) main_length), 93036#(<= (+ main_offset 636) main_length), 93039#(<= (+ main_offset 624) main_length), 93038#(<= (+ main_offset 628) main_length), 93041#(<= (+ main_offset 616) main_length), 93040#(<= (+ main_offset 620) main_length), 93043#(<= (+ main_offset 608) main_length), 93042#(<= (+ main_offset 612) main_length), 93045#(<= (+ main_offset 600) main_length), 93044#(<= (+ main_offset 604) main_length), 93047#(<= (+ main_offset 592) main_length), 93046#(<= (+ main_offset 596) main_length), 93049#(<= (+ main_offset 584) main_length), 93048#(<= (+ main_offset 588) main_length), 93051#(<= (+ main_offset 576) main_length), 93050#(<= (+ main_offset 580) main_length), 93053#(<= (+ main_offset 568) main_length), 93052#(<= (+ main_offset 572) main_length), 93055#(<= (+ main_offset 560) main_length), 93054#(<= (+ main_offset 564) main_length), 93057#(<= (+ main_offset 552) main_length), 93056#(<= (+ main_offset 556) main_length), 93059#(<= (+ main_offset 544) main_length), 93058#(<= (+ main_offset 548) main_length), 93061#(<= (+ main_offset 536) main_length), 93060#(<= (+ main_offset 540) main_length), 93063#(<= (+ main_offset 528) main_length), 93062#(<= (+ main_offset 532) main_length), 93065#(<= (+ main_offset 520) main_length), 93064#(<= (+ main_offset 524) main_length), 93067#(<= (+ main_offset 512) main_length), 93066#(<= (+ main_offset 516) main_length), 93069#(<= (+ main_offset 504) main_length), 93068#(<= (+ main_offset 508) main_length), 93071#(<= (+ main_offset 496) main_length), 93070#(<= (+ main_offset 500) main_length), 93073#(<= (+ main_offset 488) main_length), 93072#(<= (+ main_offset 492) main_length), 93074#(<= (+ main_offset 484) main_length)] [2018-07-23 13:52:45,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20022 backedges. 0 proven. 20022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:45,611 INFO L450 AbstractCegarLoop]: Interpolant automaton has 144 states [2018-07-23 13:52:45,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2018-07-23 13:52:45,613 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:52:45,613 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 144 states. [2018-07-23 13:52:46,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:46,154 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2018-07-23 13:52:46,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-07-23 13:52:46,155 INFO L78 Accepts]: Start accepts. Automaton has 144 states. Word has length 285 [2018-07-23 13:52:46,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:46,155 INFO L225 Difference]: With dead ends: 289 [2018-07-23 13:52:46,155 INFO L226 Difference]: Without dead ends: 288 [2018-07-23 13:52:46,156 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2018-07-23 13:52:46,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2018-07-23 13:52:46,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2018-07-23 13:52:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2018-07-23 13:52:46,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2018-07-23 13:52:46,160 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 285 [2018-07-23 13:52:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:46,160 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2018-07-23 13:52:46,160 INFO L472 AbstractCegarLoop]: Interpolant automaton has 144 states. [2018-07-23 13:52:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2018-07-23 13:52:46,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-07-23 13:52:46,161 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:46,161 INFO L357 BasicCegarLoop]: trace histogram [143, 142, 1, 1] [2018-07-23 13:52:46,161 INFO L414 AbstractCegarLoop]: === Iteration 143 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:46,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1783749628, now seen corresponding path program 142 times [2018-07-23 13:52:46,161 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:46,887 INFO L134 CoverageAnalysis]: Checked inductivity of 20306 backedges. 0 proven. 20306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,888 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:46,888 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2018-07-23 13:52:46,888 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,888 INFO L185 omatonBuilderFactory]: Interpolants [94229#true, 94231#(<= (+ main_offset 1048) main_length), 94230#false, 94233#(<= (+ main_offset 1040) main_length), 94232#(<= (+ main_offset 1044) main_length), 94235#(<= (+ main_offset 1032) main_length), 94234#(<= (+ main_offset 1036) main_length), 94237#(<= (+ main_offset 1024) main_length), 94236#(<= (+ main_offset 1028) main_length), 94239#(<= (+ main_offset 1016) main_length), 94238#(<= (+ main_offset 1020) main_length), 94241#(<= (+ main_offset 1008) main_length), 94240#(<= (+ main_offset 1012) main_length), 94243#(<= (+ main_offset 1000) main_length), 94242#(<= (+ main_offset 1004) main_length), 94245#(<= (+ main_offset 992) main_length), 94244#(<= (+ main_offset 996) main_length), 94247#(<= (+ main_offset 984) main_length), 94246#(<= (+ main_offset 988) main_length), 94249#(<= (+ main_offset 976) main_length), 94248#(<= (+ main_offset 980) main_length), 94251#(<= (+ main_offset 968) main_length), 94250#(<= (+ main_offset 972) main_length), 94253#(<= (+ main_offset 960) main_length), 94252#(<= (+ main_offset 964) main_length), 94255#(<= (+ main_offset 952) main_length), 94254#(<= (+ main_offset 956) main_length), 94257#(<= (+ main_offset 944) main_length), 94256#(<= (+ main_offset 948) main_length), 94259#(<= (+ main_offset 936) main_length), 94258#(<= (+ main_offset 940) main_length), 94261#(<= (+ main_offset 928) main_length), 94260#(<= (+ main_offset 932) main_length), 94263#(<= (+ main_offset 920) main_length), 94262#(<= (+ main_offset 924) main_length), 94265#(<= (+ main_offset 912) main_length), 94264#(<= (+ main_offset 916) main_length), 94267#(<= (+ main_offset 904) main_length), 94266#(<= (+ main_offset 908) main_length), 94269#(<= (+ main_offset 896) main_length), 94268#(<= (+ main_offset 900) main_length), 94271#(<= (+ main_offset 888) main_length), 94270#(<= (+ main_offset 892) main_length), 94273#(<= (+ main_offset 880) main_length), 94272#(<= (+ main_offset 884) main_length), 94275#(<= (+ main_offset 872) main_length), 94274#(<= (+ main_offset 876) main_length), 94277#(<= (+ main_offset 864) main_length), 94276#(<= (+ main_offset 868) main_length), 94279#(<= (+ main_offset 856) main_length), 94278#(<= (+ main_offset 860) main_length), 94281#(<= (+ main_offset 848) main_length), 94280#(<= (+ main_offset 852) main_length), 94283#(<= (+ main_offset 840) main_length), 94282#(<= (+ main_offset 844) main_length), 94285#(<= (+ main_offset 832) main_length), 94284#(<= (+ main_offset 836) main_length), 94287#(<= (+ main_offset 824) main_length), 94286#(<= (+ main_offset 828) main_length), 94289#(<= (+ main_offset 816) main_length), 94288#(<= (+ main_offset 820) main_length), 94291#(<= (+ main_offset 808) main_length), 94290#(<= (+ main_offset 812) main_length), 94293#(<= (+ main_offset 800) main_length), 94292#(<= (+ main_offset 804) main_length), 94295#(<= (+ main_offset 792) main_length), 94294#(<= (+ main_offset 796) main_length), 94297#(<= (+ main_offset 784) main_length), 94296#(<= (+ main_offset 788) main_length), 94299#(<= (+ main_offset 776) main_length), 94298#(<= (+ main_offset 780) main_length), 94301#(<= (+ main_offset 768) main_length), 94300#(<= (+ main_offset 772) main_length), 94303#(<= (+ main_offset 760) main_length), 94302#(<= (+ main_offset 764) main_length), 94305#(<= (+ main_offset 752) main_length), 94304#(<= (+ main_offset 756) main_length), 94307#(<= (+ main_offset 744) main_length), 94306#(<= (+ main_offset 748) main_length), 94309#(<= (+ main_offset 736) main_length), 94308#(<= (+ main_offset 740) main_length), 94311#(<= (+ main_offset 728) main_length), 94310#(<= (+ main_offset 732) main_length), 94313#(<= (+ main_offset 720) main_length), 94312#(<= (+ main_offset 724) main_length), 94315#(<= (+ main_offset 712) main_length), 94314#(<= (+ main_offset 716) main_length), 94317#(<= (+ main_offset 704) main_length), 94316#(<= (+ main_offset 708) main_length), 94319#(<= (+ main_offset 696) main_length), 94318#(<= (+ main_offset 700) main_length), 94321#(<= (+ main_offset 688) main_length), 94320#(<= (+ main_offset 692) main_length), 94323#(<= (+ main_offset 680) main_length), 94322#(<= (+ main_offset 684) main_length), 94325#(<= (+ main_offset 672) main_length), 94324#(<= (+ main_offset 676) main_length), 94327#(<= (+ main_offset 664) main_length), 94326#(<= (+ main_offset 668) main_length), 94329#(<= (+ main_offset 656) main_length), 94328#(<= (+ main_offset 660) main_length), 94331#(<= (+ main_offset 648) main_length), 94330#(<= (+ main_offset 652) main_length), 94333#(<= (+ main_offset 640) main_length), 94332#(<= (+ main_offset 644) main_length), 94335#(<= (+ main_offset 632) main_length), 94334#(<= (+ main_offset 636) main_length), 94337#(<= (+ main_offset 624) main_length), 94336#(<= (+ main_offset 628) main_length), 94339#(<= (+ main_offset 616) main_length), 94338#(<= (+ main_offset 620) main_length), 94341#(<= (+ main_offset 608) main_length), 94340#(<= (+ main_offset 612) main_length), 94343#(<= (+ main_offset 600) main_length), 94342#(<= (+ main_offset 604) main_length), 94345#(<= (+ main_offset 592) main_length), 94344#(<= (+ main_offset 596) main_length), 94347#(<= (+ main_offset 584) main_length), 94346#(<= (+ main_offset 588) main_length), 94349#(<= (+ main_offset 576) main_length), 94348#(<= (+ main_offset 580) main_length), 94351#(<= (+ main_offset 568) main_length), 94350#(<= (+ main_offset 572) main_length), 94353#(<= (+ main_offset 560) main_length), 94352#(<= (+ main_offset 564) main_length), 94355#(<= (+ main_offset 552) main_length), 94354#(<= (+ main_offset 556) main_length), 94357#(<= (+ main_offset 544) main_length), 94356#(<= (+ main_offset 548) main_length), 94359#(<= (+ main_offset 536) main_length), 94358#(<= (+ main_offset 540) main_length), 94361#(<= (+ main_offset 528) main_length), 94360#(<= (+ main_offset 532) main_length), 94363#(<= (+ main_offset 520) main_length), 94362#(<= (+ main_offset 524) main_length), 94365#(<= (+ main_offset 512) main_length), 94364#(<= (+ main_offset 516) main_length), 94367#(<= (+ main_offset 504) main_length), 94366#(<= (+ main_offset 508) main_length), 94369#(<= (+ main_offset 496) main_length), 94368#(<= (+ main_offset 500) main_length), 94371#(<= (+ main_offset 488) main_length), 94370#(<= (+ main_offset 492) main_length), 94373#(<= (+ main_offset 480) main_length), 94372#(<= (+ main_offset 484) main_length)] [2018-07-23 13:52:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 20306 backedges. 0 proven. 20306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:46,889 INFO L450 AbstractCegarLoop]: Interpolant automaton has 145 states [2018-07-23 13:52:46,891 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2018-07-23 13:52:46,891 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:52:46,891 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand 145 states. [2018-07-23 13:52:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:47,453 INFO L93 Difference]: Finished difference Result 291 states and 291 transitions. [2018-07-23 13:52:47,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2018-07-23 13:52:47,453 INFO L78 Accepts]: Start accepts. Automaton has 145 states. Word has length 287 [2018-07-23 13:52:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:47,454 INFO L225 Difference]: With dead ends: 291 [2018-07-23 13:52:47,454 INFO L226 Difference]: Without dead ends: 290 [2018-07-23 13:52:47,456 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2018-07-23 13:52:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-07-23 13:52:47,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2018-07-23 13:52:47,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2018-07-23 13:52:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 290 transitions. [2018-07-23 13:52:47,462 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 290 transitions. Word has length 287 [2018-07-23 13:52:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:47,462 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 290 transitions. [2018-07-23 13:52:47,462 INFO L472 AbstractCegarLoop]: Interpolant automaton has 145 states. [2018-07-23 13:52:47,462 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 290 transitions. [2018-07-23 13:52:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-23 13:52:47,463 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:47,464 INFO L357 BasicCegarLoop]: trace histogram [144, 143, 1, 1] [2018-07-23 13:52:47,464 INFO L414 AbstractCegarLoop]: === Iteration 144 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:47,464 INFO L82 PathProgramCache]: Analyzing trace with hash 491442494, now seen corresponding path program 143 times [2018-07-23 13:52:47,464 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 20592 backedges. 0 proven. 20592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:48,302 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:48,302 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2018-07-23 13:52:48,303 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:48,303 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 13:52:48,303 INFO L185 omatonBuilderFactory]: Interpolants [95537#false, 95536#true, 95539#(<= (+ main_offset 1044) main_length), 95538#(<= (+ main_offset 1048) main_length), 95541#(<= (+ main_offset 1036) main_length), 95540#(<= (+ main_offset 1040) main_length), 95543#(<= (+ main_offset 1028) main_length), 95542#(<= (+ main_offset 1032) main_length), 95545#(<= (+ main_offset 1020) main_length), 95544#(<= (+ main_offset 1024) main_length), 95547#(<= (+ main_offset 1012) main_length), 95546#(<= (+ main_offset 1016) main_length), 95549#(<= (+ main_offset 1004) main_length), 95548#(<= (+ main_offset 1008) main_length), 95551#(<= (+ main_offset 996) main_length), 95550#(<= (+ main_offset 1000) main_length), 95553#(<= (+ main_offset 988) main_length), 95552#(<= (+ main_offset 992) main_length), 95555#(<= (+ main_offset 980) main_length), 95554#(<= (+ main_offset 984) main_length), 95557#(<= (+ main_offset 972) main_length), 95556#(<= (+ main_offset 976) main_length), 95559#(<= (+ main_offset 964) main_length), 95558#(<= (+ main_offset 968) main_length), 95561#(<= (+ main_offset 956) main_length), 95560#(<= (+ main_offset 960) main_length), 95563#(<= (+ main_offset 948) main_length), 95562#(<= (+ main_offset 952) main_length), 95565#(<= (+ main_offset 940) main_length), 95564#(<= (+ main_offset 944) main_length), 95567#(<= (+ main_offset 932) main_length), 95566#(<= (+ main_offset 936) main_length), 95569#(<= (+ main_offset 924) main_length), 95568#(<= (+ main_offset 928) main_length), 95571#(<= (+ main_offset 916) main_length), 95570#(<= (+ main_offset 920) main_length), 95573#(<= (+ main_offset 908) main_length), 95572#(<= (+ main_offset 912) main_length), 95575#(<= (+ main_offset 900) main_length), 95574#(<= (+ main_offset 904) main_length), 95577#(<= (+ main_offset 892) main_length), 95576#(<= (+ main_offset 896) main_length), 95579#(<= (+ main_offset 884) main_length), 95578#(<= (+ main_offset 888) main_length), 95581#(<= (+ main_offset 876) main_length), 95580#(<= (+ main_offset 880) main_length), 95583#(<= (+ main_offset 868) main_length), 95582#(<= (+ main_offset 872) main_length), 95585#(<= (+ main_offset 860) main_length), 95584#(<= (+ main_offset 864) main_length), 95587#(<= (+ main_offset 852) main_length), 95586#(<= (+ main_offset 856) main_length), 95589#(<= (+ main_offset 844) main_length), 95588#(<= (+ main_offset 848) main_length), 95591#(<= (+ main_offset 836) main_length), 95590#(<= (+ main_offset 840) main_length), 95593#(<= (+ main_offset 828) main_length), 95592#(<= (+ main_offset 832) main_length), 95595#(<= (+ main_offset 820) main_length), 95594#(<= (+ main_offset 824) main_length), 95597#(<= (+ main_offset 812) main_length), 95596#(<= (+ main_offset 816) main_length), 95599#(<= (+ main_offset 804) main_length), 95598#(<= (+ main_offset 808) main_length), 95601#(<= (+ main_offset 796) main_length), 95600#(<= (+ main_offset 800) main_length), 95603#(<= (+ main_offset 788) main_length), 95602#(<= (+ main_offset 792) main_length), 95605#(<= (+ main_offset 780) main_length), 95604#(<= (+ main_offset 784) main_length), 95607#(<= (+ main_offset 772) main_length), 95606#(<= (+ main_offset 776) main_length), 95609#(<= (+ main_offset 764) main_length), 95608#(<= (+ main_offset 768) main_length), 95611#(<= (+ main_offset 756) main_length), 95610#(<= (+ main_offset 760) main_length), 95613#(<= (+ main_offset 748) main_length), 95612#(<= (+ main_offset 752) main_length), 95615#(<= (+ main_offset 740) main_length), 95614#(<= (+ main_offset 744) main_length), 95617#(<= (+ main_offset 732) main_length), 95616#(<= (+ main_offset 736) main_length), 95619#(<= (+ main_offset 724) main_length), 95618#(<= (+ main_offset 728) main_length), 95621#(<= (+ main_offset 716) main_length), 95620#(<= (+ main_offset 720) main_length), 95623#(<= (+ main_offset 708) main_length), 95622#(<= (+ main_offset 712) main_length), 95625#(<= (+ main_offset 700) main_length), 95624#(<= (+ main_offset 704) main_length), 95627#(<= (+ main_offset 692) main_length), 95626#(<= (+ main_offset 696) main_length), 95629#(<= (+ main_offset 684) main_length), 95628#(<= (+ main_offset 688) main_length), 95631#(<= (+ main_offset 676) main_length), 95630#(<= (+ main_offset 680) main_length), 95633#(<= (+ main_offset 668) main_length), 95632#(<= (+ main_offset 672) main_length), 95635#(<= (+ main_offset 660) main_length), 95634#(<= (+ main_offset 664) main_length), 95637#(<= (+ main_offset 652) main_length), 95636#(<= (+ main_offset 656) main_length), 95639#(<= (+ main_offset 644) main_length), 95638#(<= (+ main_offset 648) main_length), 95641#(<= (+ main_offset 636) main_length), 95640#(<= (+ main_offset 640) main_length), 95643#(<= (+ main_offset 628) main_length), 95642#(<= (+ main_offset 632) main_length), 95645#(<= (+ main_offset 620) main_length), 95644#(<= (+ main_offset 624) main_length), 95647#(<= (+ main_offset 612) main_length), 95646#(<= (+ main_offset 616) main_length), 95649#(<= (+ main_offset 604) main_length), 95648#(<= (+ main_offset 608) main_length), 95651#(<= (+ main_offset 596) main_length), 95650#(<= (+ main_offset 600) main_length), 95653#(<= (+ main_offset 588) main_length), 95652#(<= (+ main_offset 592) main_length), 95655#(<= (+ main_offset 580) main_length), 95654#(<= (+ main_offset 584) main_length), 95657#(<= (+ main_offset 572) main_length), 95656#(<= (+ main_offset 576) main_length), 95659#(<= (+ main_offset 564) main_length), 95658#(<= (+ main_offset 568) main_length), 95661#(<= (+ main_offset 556) main_length), 95660#(<= (+ main_offset 560) main_length), 95663#(<= (+ main_offset 548) main_length), 95662#(<= (+ main_offset 552) main_length), 95665#(<= (+ main_offset 540) main_length), 95664#(<= (+ main_offset 544) main_length), 95667#(<= (+ main_offset 532) main_length), 95666#(<= (+ main_offset 536) main_length), 95669#(<= (+ main_offset 524) main_length), 95668#(<= (+ main_offset 528) main_length), 95671#(<= (+ main_offset 516) main_length), 95670#(<= (+ main_offset 520) main_length), 95673#(<= (+ main_offset 508) main_length), 95672#(<= (+ main_offset 512) main_length), 95675#(<= (+ main_offset 500) main_length), 95674#(<= (+ main_offset 504) main_length), 95677#(<= (+ main_offset 492) main_length), 95676#(<= (+ main_offset 496) main_length), 95679#(<= (+ main_offset 484) main_length), 95678#(<= (+ main_offset 488) main_length), 95681#(<= (+ main_offset 476) main_length), 95680#(<= (+ main_offset 480) main_length)] [2018-07-23 13:52:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20592 backedges. 0 proven. 20592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:48,305 INFO L450 AbstractCegarLoop]: Interpolant automaton has 146 states [2018-07-23 13:52:48,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 146 interpolants. [2018-07-23 13:52:48,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:52:48,307 INFO L87 Difference]: Start difference. First operand 290 states and 290 transitions. Second operand 146 states. [2018-07-23 13:52:48,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:48,818 INFO L93 Difference]: Finished difference Result 293 states and 293 transitions. [2018-07-23 13:52:48,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2018-07-23 13:52:48,818 INFO L78 Accepts]: Start accepts. Automaton has 146 states. Word has length 289 [2018-07-23 13:52:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:48,818 INFO L225 Difference]: With dead ends: 293 [2018-07-23 13:52:48,819 INFO L226 Difference]: Without dead ends: 292 [2018-07-23 13:52:48,820 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2018-07-23 13:52:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2018-07-23 13:52:48,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2018-07-23 13:52:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-07-23 13:52:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 292 transitions. [2018-07-23 13:52:48,823 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 292 transitions. Word has length 289 [2018-07-23 13:52:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:48,823 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 292 transitions. [2018-07-23 13:52:48,824 INFO L472 AbstractCegarLoop]: Interpolant automaton has 146 states. [2018-07-23 13:52:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 292 transitions. [2018-07-23 13:52:48,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-07-23 13:52:48,824 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:48,824 INFO L357 BasicCegarLoop]: trace histogram [145, 144, 1, 1] [2018-07-23 13:52:48,825 INFO L414 AbstractCegarLoop]: === Iteration 145 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:48,825 INFO L82 PathProgramCache]: Analyzing trace with hash -170164736, now seen corresponding path program 144 times [2018-07-23 13:52:48,825 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 20880 backedges. 0 proven. 20880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,583 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:49,583 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2018-07-23 13:52:49,583 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,583 INFO L185 omatonBuilderFactory]: Interpolants [96853#false, 96852#true, 96855#(<= (+ main_offset 1044) main_length), 96854#(<= (+ main_offset 1048) main_length), 96857#(<= (+ main_offset 1036) main_length), 96856#(<= (+ main_offset 1040) main_length), 96859#(<= (+ main_offset 1028) main_length), 96858#(<= (+ main_offset 1032) main_length), 96861#(<= (+ main_offset 1020) main_length), 96860#(<= (+ main_offset 1024) main_length), 96863#(<= (+ main_offset 1012) main_length), 96862#(<= (+ main_offset 1016) main_length), 96865#(<= (+ main_offset 1004) main_length), 96864#(<= (+ main_offset 1008) main_length), 96867#(<= (+ main_offset 996) main_length), 96866#(<= (+ main_offset 1000) main_length), 96869#(<= (+ main_offset 988) main_length), 96868#(<= (+ main_offset 992) main_length), 96871#(<= (+ main_offset 980) main_length), 96870#(<= (+ main_offset 984) main_length), 96873#(<= (+ main_offset 972) main_length), 96872#(<= (+ main_offset 976) main_length), 96875#(<= (+ main_offset 964) main_length), 96874#(<= (+ main_offset 968) main_length), 96877#(<= (+ main_offset 956) main_length), 96876#(<= (+ main_offset 960) main_length), 96879#(<= (+ main_offset 948) main_length), 96878#(<= (+ main_offset 952) main_length), 96881#(<= (+ main_offset 940) main_length), 96880#(<= (+ main_offset 944) main_length), 96883#(<= (+ main_offset 932) main_length), 96882#(<= (+ main_offset 936) main_length), 96885#(<= (+ main_offset 924) main_length), 96884#(<= (+ main_offset 928) main_length), 96887#(<= (+ main_offset 916) main_length), 96886#(<= (+ main_offset 920) main_length), 96889#(<= (+ main_offset 908) main_length), 96888#(<= (+ main_offset 912) main_length), 96891#(<= (+ main_offset 900) main_length), 96890#(<= (+ main_offset 904) main_length), 96893#(<= (+ main_offset 892) main_length), 96892#(<= (+ main_offset 896) main_length), 96895#(<= (+ main_offset 884) main_length), 96894#(<= (+ main_offset 888) main_length), 96897#(<= (+ main_offset 876) main_length), 96896#(<= (+ main_offset 880) main_length), 96899#(<= (+ main_offset 868) main_length), 96898#(<= (+ main_offset 872) main_length), 96901#(<= (+ main_offset 860) main_length), 96900#(<= (+ main_offset 864) main_length), 96903#(<= (+ main_offset 852) main_length), 96902#(<= (+ main_offset 856) main_length), 96905#(<= (+ main_offset 844) main_length), 96904#(<= (+ main_offset 848) main_length), 96907#(<= (+ main_offset 836) main_length), 96906#(<= (+ main_offset 840) main_length), 96909#(<= (+ main_offset 828) main_length), 96908#(<= (+ main_offset 832) main_length), 96911#(<= (+ main_offset 820) main_length), 96910#(<= (+ main_offset 824) main_length), 96913#(<= (+ main_offset 812) main_length), 96912#(<= (+ main_offset 816) main_length), 96915#(<= (+ main_offset 804) main_length), 96914#(<= (+ main_offset 808) main_length), 96917#(<= (+ main_offset 796) main_length), 96916#(<= (+ main_offset 800) main_length), 96919#(<= (+ main_offset 788) main_length), 96918#(<= (+ main_offset 792) main_length), 96921#(<= (+ main_offset 780) main_length), 96920#(<= (+ main_offset 784) main_length), 96923#(<= (+ main_offset 772) main_length), 96922#(<= (+ main_offset 776) main_length), 96925#(<= (+ main_offset 764) main_length), 96924#(<= (+ main_offset 768) main_length), 96927#(<= (+ main_offset 756) main_length), 96926#(<= (+ main_offset 760) main_length), 96929#(<= (+ main_offset 748) main_length), 96928#(<= (+ main_offset 752) main_length), 96931#(<= (+ main_offset 740) main_length), 96930#(<= (+ main_offset 744) main_length), 96933#(<= (+ main_offset 732) main_length), 96932#(<= (+ main_offset 736) main_length), 96935#(<= (+ main_offset 724) main_length), 96934#(<= (+ main_offset 728) main_length), 96937#(<= (+ main_offset 716) main_length), 96936#(<= (+ main_offset 720) main_length), 96939#(<= (+ main_offset 708) main_length), 96938#(<= (+ main_offset 712) main_length), 96941#(<= (+ main_offset 700) main_length), 96940#(<= (+ main_offset 704) main_length), 96943#(<= (+ main_offset 692) main_length), 96942#(<= (+ main_offset 696) main_length), 96945#(<= (+ main_offset 684) main_length), 96944#(<= (+ main_offset 688) main_length), 96947#(<= (+ main_offset 676) main_length), 96946#(<= (+ main_offset 680) main_length), 96949#(<= (+ main_offset 668) main_length), 96948#(<= (+ main_offset 672) main_length), 96951#(<= (+ main_offset 660) main_length), 96950#(<= (+ main_offset 664) main_length), 96953#(<= (+ main_offset 652) main_length), 96952#(<= (+ main_offset 656) main_length), 96955#(<= (+ main_offset 644) main_length), 96954#(<= (+ main_offset 648) main_length), 96957#(<= (+ main_offset 636) main_length), 96956#(<= (+ main_offset 640) main_length), 96959#(<= (+ main_offset 628) main_length), 96958#(<= (+ main_offset 632) main_length), 96961#(<= (+ main_offset 620) main_length), 96960#(<= (+ main_offset 624) main_length), 96963#(<= (+ main_offset 612) main_length), 96962#(<= (+ main_offset 616) main_length), 96965#(<= (+ main_offset 604) main_length), 96964#(<= (+ main_offset 608) main_length), 96967#(<= (+ main_offset 596) main_length), 96966#(<= (+ main_offset 600) main_length), 96969#(<= (+ main_offset 588) main_length), 96968#(<= (+ main_offset 592) main_length), 96971#(<= (+ main_offset 580) main_length), 96970#(<= (+ main_offset 584) main_length), 96973#(<= (+ main_offset 572) main_length), 96972#(<= (+ main_offset 576) main_length), 96975#(<= (+ main_offset 564) main_length), 96974#(<= (+ main_offset 568) main_length), 96977#(<= (+ main_offset 556) main_length), 96976#(<= (+ main_offset 560) main_length), 96979#(<= (+ main_offset 548) main_length), 96978#(<= (+ main_offset 552) main_length), 96981#(<= (+ main_offset 540) main_length), 96980#(<= (+ main_offset 544) main_length), 96983#(<= (+ main_offset 532) main_length), 96982#(<= (+ main_offset 536) main_length), 96985#(<= (+ main_offset 524) main_length), 96984#(<= (+ main_offset 528) main_length), 96987#(<= (+ main_offset 516) main_length), 96986#(<= (+ main_offset 520) main_length), 96989#(<= (+ main_offset 508) main_length), 96988#(<= (+ main_offset 512) main_length), 96991#(<= (+ main_offset 500) main_length), 96990#(<= (+ main_offset 504) main_length), 96993#(<= (+ main_offset 492) main_length), 96992#(<= (+ main_offset 496) main_length), 96995#(<= (+ main_offset 484) main_length), 96994#(<= (+ main_offset 488) main_length), 96997#(<= (+ main_offset 476) main_length), 96996#(<= (+ main_offset 480) main_length), 96998#(<= (+ main_offset 472) main_length)] [2018-07-23 13:52:49,584 INFO L134 CoverageAnalysis]: Checked inductivity of 20880 backedges. 0 proven. 20880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:49,584 INFO L450 AbstractCegarLoop]: Interpolant automaton has 147 states [2018-07-23 13:52:49,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2018-07-23 13:52:49,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:52:49,587 INFO L87 Difference]: Start difference. First operand 292 states and 292 transitions. Second operand 147 states. [2018-07-23 13:52:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:50,094 INFO L93 Difference]: Finished difference Result 295 states and 295 transitions. [2018-07-23 13:52:50,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2018-07-23 13:52:50,094 INFO L78 Accepts]: Start accepts. Automaton has 147 states. Word has length 291 [2018-07-23 13:52:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:50,095 INFO L225 Difference]: With dead ends: 295 [2018-07-23 13:52:50,095 INFO L226 Difference]: Without dead ends: 294 [2018-07-23 13:52:50,096 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2018-07-23 13:52:50,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-07-23 13:52:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2018-07-23 13:52:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-07-23 13:52:50,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 294 transitions. [2018-07-23 13:52:50,099 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 294 transitions. Word has length 291 [2018-07-23 13:52:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:50,100 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 294 transitions. [2018-07-23 13:52:50,100 INFO L472 AbstractCegarLoop]: Interpolant automaton has 147 states. [2018-07-23 13:52:50,100 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 294 transitions. [2018-07-23 13:52:50,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-07-23 13:52:50,100 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:50,100 INFO L357 BasicCegarLoop]: trace histogram [146, 145, 1, 1] [2018-07-23 13:52:50,101 INFO L414 AbstractCegarLoop]: === Iteration 146 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:50,101 INFO L82 PathProgramCache]: Analyzing trace with hash -319552958, now seen corresponding path program 145 times [2018-07-23 13:52:50,101 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:50,843 INFO L134 CoverageAnalysis]: Checked inductivity of 21170 backedges. 0 proven. 21170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,843 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:50,843 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2018-07-23 13:52:50,843 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,844 INFO L185 omatonBuilderFactory]: Interpolants [98305#(<= (+ main_offset 544) main_length), 98304#(<= (+ main_offset 548) main_length), 98307#(<= (+ main_offset 536) main_length), 98306#(<= (+ main_offset 540) main_length), 98309#(<= (+ main_offset 528) main_length), 98308#(<= (+ main_offset 532) main_length), 98311#(<= (+ main_offset 520) main_length), 98310#(<= (+ main_offset 524) main_length), 98313#(<= (+ main_offset 512) main_length), 98312#(<= (+ main_offset 516) main_length), 98315#(<= (+ main_offset 504) main_length), 98314#(<= (+ main_offset 508) main_length), 98317#(<= (+ main_offset 496) main_length), 98316#(<= (+ main_offset 500) main_length), 98319#(<= (+ main_offset 488) main_length), 98318#(<= (+ main_offset 492) main_length), 98321#(<= (+ main_offset 480) main_length), 98320#(<= (+ main_offset 484) main_length), 98323#(<= (+ main_offset 472) main_length), 98322#(<= (+ main_offset 476) main_length), 98324#(<= (+ main_offset 468) main_length), 98177#true, 98179#(<= (+ main_offset 1048) main_length), 98178#false, 98181#(<= (+ main_offset 1040) main_length), 98180#(<= (+ main_offset 1044) main_length), 98183#(<= (+ main_offset 1032) main_length), 98182#(<= (+ main_offset 1036) main_length), 98185#(<= (+ main_offset 1024) main_length), 98184#(<= (+ main_offset 1028) main_length), 98187#(<= (+ main_offset 1016) main_length), 98186#(<= (+ main_offset 1020) main_length), 98189#(<= (+ main_offset 1008) main_length), 98188#(<= (+ main_offset 1012) main_length), 98191#(<= (+ main_offset 1000) main_length), 98190#(<= (+ main_offset 1004) main_length), 98193#(<= (+ main_offset 992) main_length), 98192#(<= (+ main_offset 996) main_length), 98195#(<= (+ main_offset 984) main_length), 98194#(<= (+ main_offset 988) main_length), 98197#(<= (+ main_offset 976) main_length), 98196#(<= (+ main_offset 980) main_length), 98199#(<= (+ main_offset 968) main_length), 98198#(<= (+ main_offset 972) main_length), 98201#(<= (+ main_offset 960) main_length), 98200#(<= (+ main_offset 964) main_length), 98203#(<= (+ main_offset 952) main_length), 98202#(<= (+ main_offset 956) main_length), 98205#(<= (+ main_offset 944) main_length), 98204#(<= (+ main_offset 948) main_length), 98207#(<= (+ main_offset 936) main_length), 98206#(<= (+ main_offset 940) main_length), 98209#(<= (+ main_offset 928) main_length), 98208#(<= (+ main_offset 932) main_length), 98211#(<= (+ main_offset 920) main_length), 98210#(<= (+ main_offset 924) main_length), 98213#(<= (+ main_offset 912) main_length), 98212#(<= (+ main_offset 916) main_length), 98215#(<= (+ main_offset 904) main_length), 98214#(<= (+ main_offset 908) main_length), 98217#(<= (+ main_offset 896) main_length), 98216#(<= (+ main_offset 900) main_length), 98219#(<= (+ main_offset 888) main_length), 98218#(<= (+ main_offset 892) main_length), 98221#(<= (+ main_offset 880) main_length), 98220#(<= (+ main_offset 884) main_length), 98223#(<= (+ main_offset 872) main_length), 98222#(<= (+ main_offset 876) main_length), 98225#(<= (+ main_offset 864) main_length), 98224#(<= (+ main_offset 868) main_length), 98227#(<= (+ main_offset 856) main_length), 98226#(<= (+ main_offset 860) main_length), 98229#(<= (+ main_offset 848) main_length), 98228#(<= (+ main_offset 852) main_length), 98231#(<= (+ main_offset 840) main_length), 98230#(<= (+ main_offset 844) main_length), 98233#(<= (+ main_offset 832) main_length), 98232#(<= (+ main_offset 836) main_length), 98235#(<= (+ main_offset 824) main_length), 98234#(<= (+ main_offset 828) main_length), 98237#(<= (+ main_offset 816) main_length), 98236#(<= (+ main_offset 820) main_length), 98239#(<= (+ main_offset 808) main_length), 98238#(<= (+ main_offset 812) main_length), 98241#(<= (+ main_offset 800) main_length), 98240#(<= (+ main_offset 804) main_length), 98243#(<= (+ main_offset 792) main_length), 98242#(<= (+ main_offset 796) main_length), 98245#(<= (+ main_offset 784) main_length), 98244#(<= (+ main_offset 788) main_length), 98247#(<= (+ main_offset 776) main_length), 98246#(<= (+ main_offset 780) main_length), 98249#(<= (+ main_offset 768) main_length), 98248#(<= (+ main_offset 772) main_length), 98251#(<= (+ main_offset 760) main_length), 98250#(<= (+ main_offset 764) main_length), 98253#(<= (+ main_offset 752) main_length), 98252#(<= (+ main_offset 756) main_length), 98255#(<= (+ main_offset 744) main_length), 98254#(<= (+ main_offset 748) main_length), 98257#(<= (+ main_offset 736) main_length), 98256#(<= (+ main_offset 740) main_length), 98259#(<= (+ main_offset 728) main_length), 98258#(<= (+ main_offset 732) main_length), 98261#(<= (+ main_offset 720) main_length), 98260#(<= (+ main_offset 724) main_length), 98263#(<= (+ main_offset 712) main_length), 98262#(<= (+ main_offset 716) main_length), 98265#(<= (+ main_offset 704) main_length), 98264#(<= (+ main_offset 708) main_length), 98267#(<= (+ main_offset 696) main_length), 98266#(<= (+ main_offset 700) main_length), 98269#(<= (+ main_offset 688) main_length), 98268#(<= (+ main_offset 692) main_length), 98271#(<= (+ main_offset 680) main_length), 98270#(<= (+ main_offset 684) main_length), 98273#(<= (+ main_offset 672) main_length), 98272#(<= (+ main_offset 676) main_length), 98275#(<= (+ main_offset 664) main_length), 98274#(<= (+ main_offset 668) main_length), 98277#(<= (+ main_offset 656) main_length), 98276#(<= (+ main_offset 660) main_length), 98279#(<= (+ main_offset 648) main_length), 98278#(<= (+ main_offset 652) main_length), 98281#(<= (+ main_offset 640) main_length), 98280#(<= (+ main_offset 644) main_length), 98283#(<= (+ main_offset 632) main_length), 98282#(<= (+ main_offset 636) main_length), 98285#(<= (+ main_offset 624) main_length), 98284#(<= (+ main_offset 628) main_length), 98287#(<= (+ main_offset 616) main_length), 98286#(<= (+ main_offset 620) main_length), 98289#(<= (+ main_offset 608) main_length), 98288#(<= (+ main_offset 612) main_length), 98291#(<= (+ main_offset 600) main_length), 98290#(<= (+ main_offset 604) main_length), 98293#(<= (+ main_offset 592) main_length), 98292#(<= (+ main_offset 596) main_length), 98295#(<= (+ main_offset 584) main_length), 98294#(<= (+ main_offset 588) main_length), 98297#(<= (+ main_offset 576) main_length), 98296#(<= (+ main_offset 580) main_length), 98299#(<= (+ main_offset 568) main_length), 98298#(<= (+ main_offset 572) main_length), 98301#(<= (+ main_offset 560) main_length), 98300#(<= (+ main_offset 564) main_length), 98303#(<= (+ main_offset 552) main_length), 98302#(<= (+ main_offset 556) main_length)] [2018-07-23 13:52:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 21170 backedges. 0 proven. 21170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:50,845 INFO L450 AbstractCegarLoop]: Interpolant automaton has 148 states [2018-07-23 13:52:50,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 148 interpolants. [2018-07-23 13:52:50,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:52:50,847 INFO L87 Difference]: Start difference. First operand 294 states and 294 transitions. Second operand 148 states. [2018-07-23 13:52:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:51,297 INFO L93 Difference]: Finished difference Result 297 states and 297 transitions. [2018-07-23 13:52:51,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2018-07-23 13:52:51,298 INFO L78 Accepts]: Start accepts. Automaton has 148 states. Word has length 293 [2018-07-23 13:52:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:51,298 INFO L225 Difference]: With dead ends: 297 [2018-07-23 13:52:51,298 INFO L226 Difference]: Without dead ends: 296 [2018-07-23 13:52:51,300 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2018-07-23 13:52:51,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2018-07-23 13:52:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2018-07-23 13:52:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-07-23 13:52:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 296 transitions. [2018-07-23 13:52:51,304 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 296 transitions. Word has length 293 [2018-07-23 13:52:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:51,304 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 296 transitions. [2018-07-23 13:52:51,304 INFO L472 AbstractCegarLoop]: Interpolant automaton has 148 states. [2018-07-23 13:52:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 296 transitions. [2018-07-23 13:52:51,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2018-07-23 13:52:51,305 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:51,305 INFO L357 BasicCegarLoop]: trace histogram [147, 146, 1, 1] [2018-07-23 13:52:51,305 INFO L414 AbstractCegarLoop]: === Iteration 147 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:51,305 INFO L82 PathProgramCache]: Analyzing trace with hash 2147253764, now seen corresponding path program 146 times [2018-07-23 13:52:51,305 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21462 backedges. 0 proven. 21462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,101 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:52,101 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2018-07-23 13:52:52,101 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,102 INFO L185 omatonBuilderFactory]: Interpolants [99585#(<= (+ main_offset 760) main_length), 99584#(<= (+ main_offset 764) main_length), 99587#(<= (+ main_offset 752) main_length), 99586#(<= (+ main_offset 756) main_length), 99589#(<= (+ main_offset 744) main_length), 99588#(<= (+ main_offset 748) main_length), 99591#(<= (+ main_offset 736) main_length), 99590#(<= (+ main_offset 740) main_length), 99593#(<= (+ main_offset 728) main_length), 99592#(<= (+ main_offset 732) main_length), 99595#(<= (+ main_offset 720) main_length), 99594#(<= (+ main_offset 724) main_length), 99597#(<= (+ main_offset 712) main_length), 99596#(<= (+ main_offset 716) main_length), 99599#(<= (+ main_offset 704) main_length), 99598#(<= (+ main_offset 708) main_length), 99601#(<= (+ main_offset 696) main_length), 99600#(<= (+ main_offset 700) main_length), 99603#(<= (+ main_offset 688) main_length), 99602#(<= (+ main_offset 692) main_length), 99605#(<= (+ main_offset 680) main_length), 99604#(<= (+ main_offset 684) main_length), 99607#(<= (+ main_offset 672) main_length), 99606#(<= (+ main_offset 676) main_length), 99609#(<= (+ main_offset 664) main_length), 99608#(<= (+ main_offset 668) main_length), 99611#(<= (+ main_offset 656) main_length), 99610#(<= (+ main_offset 660) main_length), 99613#(<= (+ main_offset 648) main_length), 99612#(<= (+ main_offset 652) main_length), 99615#(<= (+ main_offset 640) main_length), 99614#(<= (+ main_offset 644) main_length), 99617#(<= (+ main_offset 632) main_length), 99616#(<= (+ main_offset 636) main_length), 99619#(<= (+ main_offset 624) main_length), 99618#(<= (+ main_offset 628) main_length), 99621#(<= (+ main_offset 616) main_length), 99620#(<= (+ main_offset 620) main_length), 99623#(<= (+ main_offset 608) main_length), 99622#(<= (+ main_offset 612) main_length), 99625#(<= (+ main_offset 600) main_length), 99624#(<= (+ main_offset 604) main_length), 99627#(<= (+ main_offset 592) main_length), 99626#(<= (+ main_offset 596) main_length), 99629#(<= (+ main_offset 584) main_length), 99628#(<= (+ main_offset 588) main_length), 99631#(<= (+ main_offset 576) main_length), 99630#(<= (+ main_offset 580) main_length), 99633#(<= (+ main_offset 568) main_length), 99632#(<= (+ main_offset 572) main_length), 99635#(<= (+ main_offset 560) main_length), 99634#(<= (+ main_offset 564) main_length), 99637#(<= (+ main_offset 552) main_length), 99636#(<= (+ main_offset 556) main_length), 99639#(<= (+ main_offset 544) main_length), 99638#(<= (+ main_offset 548) main_length), 99641#(<= (+ main_offset 536) main_length), 99640#(<= (+ main_offset 540) main_length), 99643#(<= (+ main_offset 528) main_length), 99642#(<= (+ main_offset 532) main_length), 99645#(<= (+ main_offset 520) main_length), 99644#(<= (+ main_offset 524) main_length), 99647#(<= (+ main_offset 512) main_length), 99646#(<= (+ main_offset 516) main_length), 99649#(<= (+ main_offset 504) main_length), 99648#(<= (+ main_offset 508) main_length), 99651#(<= (+ main_offset 496) main_length), 99650#(<= (+ main_offset 500) main_length), 99653#(<= (+ main_offset 488) main_length), 99652#(<= (+ main_offset 492) main_length), 99655#(<= (+ main_offset 480) main_length), 99654#(<= (+ main_offset 484) main_length), 99657#(<= (+ main_offset 472) main_length), 99656#(<= (+ main_offset 476) main_length), 99659#(<= (+ main_offset 464) main_length), 99658#(<= (+ main_offset 468) main_length), 99511#true, 99513#(<= (+ main_offset 1048) main_length), 99512#false, 99515#(<= (+ main_offset 1040) main_length), 99514#(<= (+ main_offset 1044) main_length), 99517#(<= (+ main_offset 1032) main_length), 99516#(<= (+ main_offset 1036) main_length), 99519#(<= (+ main_offset 1024) main_length), 99518#(<= (+ main_offset 1028) main_length), 99521#(<= (+ main_offset 1016) main_length), 99520#(<= (+ main_offset 1020) main_length), 99523#(<= (+ main_offset 1008) main_length), 99522#(<= (+ main_offset 1012) main_length), 99525#(<= (+ main_offset 1000) main_length), 99524#(<= (+ main_offset 1004) main_length), 99527#(<= (+ main_offset 992) main_length), 99526#(<= (+ main_offset 996) main_length), 99529#(<= (+ main_offset 984) main_length), 99528#(<= (+ main_offset 988) main_length), 99531#(<= (+ main_offset 976) main_length), 99530#(<= (+ main_offset 980) main_length), 99533#(<= (+ main_offset 968) main_length), 99532#(<= (+ main_offset 972) main_length), 99535#(<= (+ main_offset 960) main_length), 99534#(<= (+ main_offset 964) main_length), 99537#(<= (+ main_offset 952) main_length), 99536#(<= (+ main_offset 956) main_length), 99539#(<= (+ main_offset 944) main_length), 99538#(<= (+ main_offset 948) main_length), 99541#(<= (+ main_offset 936) main_length), 99540#(<= (+ main_offset 940) main_length), 99543#(<= (+ main_offset 928) main_length), 99542#(<= (+ main_offset 932) main_length), 99545#(<= (+ main_offset 920) main_length), 99544#(<= (+ main_offset 924) main_length), 99547#(<= (+ main_offset 912) main_length), 99546#(<= (+ main_offset 916) main_length), 99549#(<= (+ main_offset 904) main_length), 99548#(<= (+ main_offset 908) main_length), 99551#(<= (+ main_offset 896) main_length), 99550#(<= (+ main_offset 900) main_length), 99553#(<= (+ main_offset 888) main_length), 99552#(<= (+ main_offset 892) main_length), 99555#(<= (+ main_offset 880) main_length), 99554#(<= (+ main_offset 884) main_length), 99557#(<= (+ main_offset 872) main_length), 99556#(<= (+ main_offset 876) main_length), 99559#(<= (+ main_offset 864) main_length), 99558#(<= (+ main_offset 868) main_length), 99561#(<= (+ main_offset 856) main_length), 99560#(<= (+ main_offset 860) main_length), 99563#(<= (+ main_offset 848) main_length), 99562#(<= (+ main_offset 852) main_length), 99565#(<= (+ main_offset 840) main_length), 99564#(<= (+ main_offset 844) main_length), 99567#(<= (+ main_offset 832) main_length), 99566#(<= (+ main_offset 836) main_length), 99569#(<= (+ main_offset 824) main_length), 99568#(<= (+ main_offset 828) main_length), 99571#(<= (+ main_offset 816) main_length), 99570#(<= (+ main_offset 820) main_length), 99573#(<= (+ main_offset 808) main_length), 99572#(<= (+ main_offset 812) main_length), 99575#(<= (+ main_offset 800) main_length), 99574#(<= (+ main_offset 804) main_length), 99577#(<= (+ main_offset 792) main_length), 99576#(<= (+ main_offset 796) main_length), 99579#(<= (+ main_offset 784) main_length), 99578#(<= (+ main_offset 788) main_length), 99581#(<= (+ main_offset 776) main_length), 99580#(<= (+ main_offset 780) main_length), 99583#(<= (+ main_offset 768) main_length), 99582#(<= (+ main_offset 772) main_length)] [2018-07-23 13:52:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21462 backedges. 0 proven. 21462 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:52,103 INFO L450 AbstractCegarLoop]: Interpolant automaton has 149 states [2018-07-23 13:52:52,104 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2018-07-23 13:52:52,105 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:52:52,105 INFO L87 Difference]: Start difference. First operand 296 states and 296 transitions. Second operand 149 states. [2018-07-23 13:52:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:52,337 INFO L93 Difference]: Finished difference Result 299 states and 299 transitions. [2018-07-23 13:52:52,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2018-07-23 13:52:52,337 INFO L78 Accepts]: Start accepts. Automaton has 149 states. Word has length 295 [2018-07-23 13:52:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:52,338 INFO L225 Difference]: With dead ends: 299 [2018-07-23 13:52:52,338 INFO L226 Difference]: Without dead ends: 298 [2018-07-23 13:52:52,340 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2018-07-23 13:52:52,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2018-07-23 13:52:52,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2018-07-23 13:52:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-07-23 13:52:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 298 transitions. [2018-07-23 13:52:52,346 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 298 transitions. Word has length 295 [2018-07-23 13:52:52,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:52,346 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 298 transitions. [2018-07-23 13:52:52,346 INFO L472 AbstractCegarLoop]: Interpolant automaton has 149 states. [2018-07-23 13:52:52,346 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 298 transitions. [2018-07-23 13:52:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-07-23 13:52:52,348 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:52,348 INFO L357 BasicCegarLoop]: trace histogram [148, 147, 1, 1] [2018-07-23 13:52:52,348 INFO L414 AbstractCegarLoop]: === Iteration 148 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:52,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1926566214, now seen corresponding path program 147 times [2018-07-23 13:52:52,348 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:53,202 INFO L134 CoverageAnalysis]: Checked inductivity of 21756 backedges. 0 proven. 21756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:53,202 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:53,202 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2018-07-23 13:52:53,202 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:53,202 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 13:52:53,203 INFO L185 omatonBuilderFactory]: Interpolants [100865#(<= (+ main_offset 1012) main_length), 100864#(<= (+ main_offset 1016) main_length), 100867#(<= (+ main_offset 1004) main_length), 100866#(<= (+ main_offset 1008) main_length), 100869#(<= (+ main_offset 996) main_length), 100868#(<= (+ main_offset 1000) main_length), 100871#(<= (+ main_offset 988) main_length), 100870#(<= (+ main_offset 992) main_length), 100873#(<= (+ main_offset 980) main_length), 100872#(<= (+ main_offset 984) main_length), 100875#(<= (+ main_offset 972) main_length), 100874#(<= (+ main_offset 976) main_length), 100877#(<= (+ main_offset 964) main_length), 100876#(<= (+ main_offset 968) main_length), 100879#(<= (+ main_offset 956) main_length), 100878#(<= (+ main_offset 960) main_length), 100881#(<= (+ main_offset 948) main_length), 100880#(<= (+ main_offset 952) main_length), 100883#(<= (+ main_offset 940) main_length), 100882#(<= (+ main_offset 944) main_length), 100885#(<= (+ main_offset 932) main_length), 100884#(<= (+ main_offset 936) main_length), 100887#(<= (+ main_offset 924) main_length), 100886#(<= (+ main_offset 928) main_length), 100889#(<= (+ main_offset 916) main_length), 100888#(<= (+ main_offset 920) main_length), 100891#(<= (+ main_offset 908) main_length), 100890#(<= (+ main_offset 912) main_length), 100893#(<= (+ main_offset 900) main_length), 100892#(<= (+ main_offset 904) main_length), 100895#(<= (+ main_offset 892) main_length), 100894#(<= (+ main_offset 896) main_length), 100897#(<= (+ main_offset 884) main_length), 100896#(<= (+ main_offset 888) main_length), 100899#(<= (+ main_offset 876) main_length), 100898#(<= (+ main_offset 880) main_length), 100901#(<= (+ main_offset 868) main_length), 100900#(<= (+ main_offset 872) main_length), 100903#(<= (+ main_offset 860) main_length), 100902#(<= (+ main_offset 864) main_length), 100905#(<= (+ main_offset 852) main_length), 100904#(<= (+ main_offset 856) main_length), 100907#(<= (+ main_offset 844) main_length), 100906#(<= (+ main_offset 848) main_length), 100909#(<= (+ main_offset 836) main_length), 100908#(<= (+ main_offset 840) main_length), 100911#(<= (+ main_offset 828) main_length), 100910#(<= (+ main_offset 832) main_length), 100913#(<= (+ main_offset 820) main_length), 100912#(<= (+ main_offset 824) main_length), 100915#(<= (+ main_offset 812) main_length), 100914#(<= (+ main_offset 816) main_length), 100917#(<= (+ main_offset 804) main_length), 100916#(<= (+ main_offset 808) main_length), 100919#(<= (+ main_offset 796) main_length), 100918#(<= (+ main_offset 800) main_length), 100921#(<= (+ main_offset 788) main_length), 100920#(<= (+ main_offset 792) main_length), 100923#(<= (+ main_offset 780) main_length), 100922#(<= (+ main_offset 784) main_length), 100925#(<= (+ main_offset 772) main_length), 100924#(<= (+ main_offset 776) main_length), 100927#(<= (+ main_offset 764) main_length), 100926#(<= (+ main_offset 768) main_length), 100929#(<= (+ main_offset 756) main_length), 100928#(<= (+ main_offset 760) main_length), 100931#(<= (+ main_offset 748) main_length), 100930#(<= (+ main_offset 752) main_length), 100933#(<= (+ main_offset 740) main_length), 100932#(<= (+ main_offset 744) main_length), 100935#(<= (+ main_offset 732) main_length), 100934#(<= (+ main_offset 736) main_length), 100937#(<= (+ main_offset 724) main_length), 100936#(<= (+ main_offset 728) main_length), 100939#(<= (+ main_offset 716) main_length), 100938#(<= (+ main_offset 720) main_length), 100941#(<= (+ main_offset 708) main_length), 100940#(<= (+ main_offset 712) main_length), 100943#(<= (+ main_offset 700) main_length), 100942#(<= (+ main_offset 704) main_length), 100945#(<= (+ main_offset 692) main_length), 100944#(<= (+ main_offset 696) main_length), 100947#(<= (+ main_offset 684) main_length), 100946#(<= (+ main_offset 688) main_length), 100949#(<= (+ main_offset 676) main_length), 100948#(<= (+ main_offset 680) main_length), 100951#(<= (+ main_offset 668) main_length), 100950#(<= (+ main_offset 672) main_length), 100953#(<= (+ main_offset 660) main_length), 100952#(<= (+ main_offset 664) main_length), 100955#(<= (+ main_offset 652) main_length), 100954#(<= (+ main_offset 656) main_length), 100957#(<= (+ main_offset 644) main_length), 100956#(<= (+ main_offset 648) main_length), 100959#(<= (+ main_offset 636) main_length), 100958#(<= (+ main_offset 640) main_length), 100961#(<= (+ main_offset 628) main_length), 100960#(<= (+ main_offset 632) main_length), 100963#(<= (+ main_offset 620) main_length), 100962#(<= (+ main_offset 624) main_length), 100965#(<= (+ main_offset 612) main_length), 100964#(<= (+ main_offset 616) main_length), 100967#(<= (+ main_offset 604) main_length), 100966#(<= (+ main_offset 608) main_length), 100969#(<= (+ main_offset 596) main_length), 100968#(<= (+ main_offset 600) main_length), 100971#(<= (+ main_offset 588) main_length), 100970#(<= (+ main_offset 592) main_length), 100973#(<= (+ main_offset 580) main_length), 100972#(<= (+ main_offset 584) main_length), 100975#(<= (+ main_offset 572) main_length), 100974#(<= (+ main_offset 576) main_length), 100977#(<= (+ main_offset 564) main_length), 100976#(<= (+ main_offset 568) main_length), 100979#(<= (+ main_offset 556) main_length), 100978#(<= (+ main_offset 560) main_length), 100981#(<= (+ main_offset 548) main_length), 100980#(<= (+ main_offset 552) main_length), 100983#(<= (+ main_offset 540) main_length), 100982#(<= (+ main_offset 544) main_length), 100985#(<= (+ main_offset 532) main_length), 100984#(<= (+ main_offset 536) main_length), 100987#(<= (+ main_offset 524) main_length), 100986#(<= (+ main_offset 528) main_length), 100989#(<= (+ main_offset 516) main_length), 100988#(<= (+ main_offset 520) main_length), 100991#(<= (+ main_offset 508) main_length), 100990#(<= (+ main_offset 512) main_length), 100993#(<= (+ main_offset 500) main_length), 100992#(<= (+ main_offset 504) main_length), 100995#(<= (+ main_offset 492) main_length), 100994#(<= (+ main_offset 496) main_length), 100997#(<= (+ main_offset 484) main_length), 100996#(<= (+ main_offset 488) main_length), 100999#(<= (+ main_offset 476) main_length), 100998#(<= (+ main_offset 480) main_length), 101001#(<= (+ main_offset 468) main_length), 101000#(<= (+ main_offset 472) main_length), 101003#(<= (+ main_offset 460) main_length), 101002#(<= (+ main_offset 464) main_length), 100855#false, 100854#true, 100857#(<= (+ main_offset 1044) main_length), 100856#(<= (+ main_offset 1048) main_length), 100859#(<= (+ main_offset 1036) main_length), 100858#(<= (+ main_offset 1040) main_length), 100861#(<= (+ main_offset 1028) main_length), 100860#(<= (+ main_offset 1032) main_length), 100863#(<= (+ main_offset 1020) main_length), 100862#(<= (+ main_offset 1024) main_length)] [2018-07-23 13:52:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 21756 backedges. 0 proven. 21756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:53,204 INFO L450 AbstractCegarLoop]: Interpolant automaton has 150 states [2018-07-23 13:52:53,205 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 150 interpolants. [2018-07-23 13:52:53,205 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:52:53,205 INFO L87 Difference]: Start difference. First operand 298 states and 298 transitions. Second operand 150 states. [2018-07-23 13:52:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:53,977 INFO L93 Difference]: Finished difference Result 301 states and 301 transitions. [2018-07-23 13:52:53,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2018-07-23 13:52:53,977 INFO L78 Accepts]: Start accepts. Automaton has 150 states. Word has length 297 [2018-07-23 13:52:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:53,978 INFO L225 Difference]: With dead ends: 301 [2018-07-23 13:52:53,978 INFO L226 Difference]: Without dead ends: 300 [2018-07-23 13:52:53,979 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2018-07-23 13:52:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2018-07-23 13:52:53,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2018-07-23 13:52:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-07-23 13:52:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2018-07-23 13:52:53,983 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 297 [2018-07-23 13:52:53,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:53,983 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2018-07-23 13:52:53,983 INFO L472 AbstractCegarLoop]: Interpolant automaton has 150 states. [2018-07-23 13:52:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2018-07-23 13:52:53,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-07-23 13:52:53,984 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:53,984 INFO L357 BasicCegarLoop]: trace histogram [149, 148, 1, 1] [2018-07-23 13:52:53,984 INFO L414 AbstractCegarLoop]: === Iteration 149 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:53,984 INFO L82 PathProgramCache]: Analyzing trace with hash 299228168, now seen corresponding path program 148 times [2018-07-23 13:52:53,984 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 0 proven. 22052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:54,765 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:54,765 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2018-07-23 13:52:54,765 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:54,766 INFO L185 omatonBuilderFactory]: Interpolants [102207#false, 102206#true, 102209#(<= (+ main_offset 1044) main_length), 102208#(<= (+ main_offset 1048) main_length), 102211#(<= (+ main_offset 1036) main_length), 102210#(<= (+ main_offset 1040) main_length), 102213#(<= (+ main_offset 1028) main_length), 102212#(<= (+ main_offset 1032) main_length), 102215#(<= (+ main_offset 1020) main_length), 102214#(<= (+ main_offset 1024) main_length), 102217#(<= (+ main_offset 1012) main_length), 102216#(<= (+ main_offset 1016) main_length), 102219#(<= (+ main_offset 1004) main_length), 102218#(<= (+ main_offset 1008) main_length), 102221#(<= (+ main_offset 996) main_length), 102220#(<= (+ main_offset 1000) main_length), 102223#(<= (+ main_offset 988) main_length), 102222#(<= (+ main_offset 992) main_length), 102225#(<= (+ main_offset 980) main_length), 102224#(<= (+ main_offset 984) main_length), 102227#(<= (+ main_offset 972) main_length), 102226#(<= (+ main_offset 976) main_length), 102229#(<= (+ main_offset 964) main_length), 102228#(<= (+ main_offset 968) main_length), 102231#(<= (+ main_offset 956) main_length), 102230#(<= (+ main_offset 960) main_length), 102233#(<= (+ main_offset 948) main_length), 102232#(<= (+ main_offset 952) main_length), 102235#(<= (+ main_offset 940) main_length), 102234#(<= (+ main_offset 944) main_length), 102237#(<= (+ main_offset 932) main_length), 102236#(<= (+ main_offset 936) main_length), 102239#(<= (+ main_offset 924) main_length), 102238#(<= (+ main_offset 928) main_length), 102241#(<= (+ main_offset 916) main_length), 102240#(<= (+ main_offset 920) main_length), 102243#(<= (+ main_offset 908) main_length), 102242#(<= (+ main_offset 912) main_length), 102245#(<= (+ main_offset 900) main_length), 102244#(<= (+ main_offset 904) main_length), 102247#(<= (+ main_offset 892) main_length), 102246#(<= (+ main_offset 896) main_length), 102249#(<= (+ main_offset 884) main_length), 102248#(<= (+ main_offset 888) main_length), 102251#(<= (+ main_offset 876) main_length), 102250#(<= (+ main_offset 880) main_length), 102253#(<= (+ main_offset 868) main_length), 102252#(<= (+ main_offset 872) main_length), 102255#(<= (+ main_offset 860) main_length), 102254#(<= (+ main_offset 864) main_length), 102257#(<= (+ main_offset 852) main_length), 102256#(<= (+ main_offset 856) main_length), 102259#(<= (+ main_offset 844) main_length), 102258#(<= (+ main_offset 848) main_length), 102261#(<= (+ main_offset 836) main_length), 102260#(<= (+ main_offset 840) main_length), 102263#(<= (+ main_offset 828) main_length), 102262#(<= (+ main_offset 832) main_length), 102265#(<= (+ main_offset 820) main_length), 102264#(<= (+ main_offset 824) main_length), 102267#(<= (+ main_offset 812) main_length), 102266#(<= (+ main_offset 816) main_length), 102269#(<= (+ main_offset 804) main_length), 102268#(<= (+ main_offset 808) main_length), 102271#(<= (+ main_offset 796) main_length), 102270#(<= (+ main_offset 800) main_length), 102273#(<= (+ main_offset 788) main_length), 102272#(<= (+ main_offset 792) main_length), 102275#(<= (+ main_offset 780) main_length), 102274#(<= (+ main_offset 784) main_length), 102277#(<= (+ main_offset 772) main_length), 102276#(<= (+ main_offset 776) main_length), 102279#(<= (+ main_offset 764) main_length), 102278#(<= (+ main_offset 768) main_length), 102281#(<= (+ main_offset 756) main_length), 102280#(<= (+ main_offset 760) main_length), 102283#(<= (+ main_offset 748) main_length), 102282#(<= (+ main_offset 752) main_length), 102285#(<= (+ main_offset 740) main_length), 102284#(<= (+ main_offset 744) main_length), 102287#(<= (+ main_offset 732) main_length), 102286#(<= (+ main_offset 736) main_length), 102289#(<= (+ main_offset 724) main_length), 102288#(<= (+ main_offset 728) main_length), 102291#(<= (+ main_offset 716) main_length), 102290#(<= (+ main_offset 720) main_length), 102293#(<= (+ main_offset 708) main_length), 102292#(<= (+ main_offset 712) main_length), 102295#(<= (+ main_offset 700) main_length), 102294#(<= (+ main_offset 704) main_length), 102297#(<= (+ main_offset 692) main_length), 102296#(<= (+ main_offset 696) main_length), 102299#(<= (+ main_offset 684) main_length), 102298#(<= (+ main_offset 688) main_length), 102301#(<= (+ main_offset 676) main_length), 102300#(<= (+ main_offset 680) main_length), 102303#(<= (+ main_offset 668) main_length), 102302#(<= (+ main_offset 672) main_length), 102305#(<= (+ main_offset 660) main_length), 102304#(<= (+ main_offset 664) main_length), 102307#(<= (+ main_offset 652) main_length), 102306#(<= (+ main_offset 656) main_length), 102309#(<= (+ main_offset 644) main_length), 102308#(<= (+ main_offset 648) main_length), 102311#(<= (+ main_offset 636) main_length), 102310#(<= (+ main_offset 640) main_length), 102313#(<= (+ main_offset 628) main_length), 102312#(<= (+ main_offset 632) main_length), 102315#(<= (+ main_offset 620) main_length), 102314#(<= (+ main_offset 624) main_length), 102317#(<= (+ main_offset 612) main_length), 102316#(<= (+ main_offset 616) main_length), 102319#(<= (+ main_offset 604) main_length), 102318#(<= (+ main_offset 608) main_length), 102321#(<= (+ main_offset 596) main_length), 102320#(<= (+ main_offset 600) main_length), 102323#(<= (+ main_offset 588) main_length), 102322#(<= (+ main_offset 592) main_length), 102325#(<= (+ main_offset 580) main_length), 102324#(<= (+ main_offset 584) main_length), 102327#(<= (+ main_offset 572) main_length), 102326#(<= (+ main_offset 576) main_length), 102329#(<= (+ main_offset 564) main_length), 102328#(<= (+ main_offset 568) main_length), 102331#(<= (+ main_offset 556) main_length), 102330#(<= (+ main_offset 560) main_length), 102333#(<= (+ main_offset 548) main_length), 102332#(<= (+ main_offset 552) main_length), 102335#(<= (+ main_offset 540) main_length), 102334#(<= (+ main_offset 544) main_length), 102337#(<= (+ main_offset 532) main_length), 102336#(<= (+ main_offset 536) main_length), 102339#(<= (+ main_offset 524) main_length), 102338#(<= (+ main_offset 528) main_length), 102341#(<= (+ main_offset 516) main_length), 102340#(<= (+ main_offset 520) main_length), 102343#(<= (+ main_offset 508) main_length), 102342#(<= (+ main_offset 512) main_length), 102345#(<= (+ main_offset 500) main_length), 102344#(<= (+ main_offset 504) main_length), 102347#(<= (+ main_offset 492) main_length), 102346#(<= (+ main_offset 496) main_length), 102349#(<= (+ main_offset 484) main_length), 102348#(<= (+ main_offset 488) main_length), 102351#(<= (+ main_offset 476) main_length), 102350#(<= (+ main_offset 480) main_length), 102353#(<= (+ main_offset 468) main_length), 102352#(<= (+ main_offset 472) main_length), 102355#(<= (+ main_offset 460) main_length), 102354#(<= (+ main_offset 464) main_length), 102356#(<= (+ main_offset 456) main_length)] [2018-07-23 13:52:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 22052 backedges. 0 proven. 22052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:54,767 INFO L450 AbstractCegarLoop]: Interpolant automaton has 151 states [2018-07-23 13:52:54,768 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2018-07-23 13:52:54,769 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:52:54,769 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand 151 states. [2018-07-23 13:52:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:55,346 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2018-07-23 13:52:55,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2018-07-23 13:52:55,346 INFO L78 Accepts]: Start accepts. Automaton has 151 states. Word has length 299 [2018-07-23 13:52:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:55,347 INFO L225 Difference]: With dead ends: 303 [2018-07-23 13:52:55,347 INFO L226 Difference]: Without dead ends: 302 [2018-07-23 13:52:55,349 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2018-07-23 13:52:55,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2018-07-23 13:52:55,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2018-07-23 13:52:55,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-07-23 13:52:55,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 302 transitions. [2018-07-23 13:52:55,353 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 302 transitions. Word has length 299 [2018-07-23 13:52:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:55,353 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 302 transitions. [2018-07-23 13:52:55,354 INFO L472 AbstractCegarLoop]: Interpolant automaton has 151 states. [2018-07-23 13:52:55,354 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 302 transitions. [2018-07-23 13:52:55,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-07-23 13:52:55,354 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:55,354 INFO L357 BasicCegarLoop]: trace histogram [150, 149, 1, 1] [2018-07-23 13:52:55,355 INFO L414 AbstractCegarLoop]: === Iteration 150 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:55,355 INFO L82 PathProgramCache]: Analyzing trace with hash -204538294, now seen corresponding path program 149 times [2018-07-23 13:52:55,355 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 22350 backedges. 0 proven. 22350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:56,168 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:56,168 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2018-07-23 13:52:56,168 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:56,168 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 13:52:56,169 INFO L185 omatonBuilderFactory]: Interpolants [103681#(<= (+ main_offset 600) main_length), 103680#(<= (+ main_offset 604) main_length), 103683#(<= (+ main_offset 592) main_length), 103682#(<= (+ main_offset 596) main_length), 103685#(<= (+ main_offset 584) main_length), 103684#(<= (+ main_offset 588) main_length), 103687#(<= (+ main_offset 576) main_length), 103686#(<= (+ main_offset 580) main_length), 103689#(<= (+ main_offset 568) main_length), 103688#(<= (+ main_offset 572) main_length), 103691#(<= (+ main_offset 560) main_length), 103690#(<= (+ main_offset 564) main_length), 103693#(<= (+ main_offset 552) main_length), 103692#(<= (+ main_offset 556) main_length), 103695#(<= (+ main_offset 544) main_length), 103694#(<= (+ main_offset 548) main_length), 103697#(<= (+ main_offset 536) main_length), 103696#(<= (+ main_offset 540) main_length), 103699#(<= (+ main_offset 528) main_length), 103698#(<= (+ main_offset 532) main_length), 103701#(<= (+ main_offset 520) main_length), 103700#(<= (+ main_offset 524) main_length), 103703#(<= (+ main_offset 512) main_length), 103702#(<= (+ main_offset 516) main_length), 103705#(<= (+ main_offset 504) main_length), 103704#(<= (+ main_offset 508) main_length), 103707#(<= (+ main_offset 496) main_length), 103706#(<= (+ main_offset 500) main_length), 103709#(<= (+ main_offset 488) main_length), 103708#(<= (+ main_offset 492) main_length), 103711#(<= (+ main_offset 480) main_length), 103710#(<= (+ main_offset 484) main_length), 103713#(<= (+ main_offset 472) main_length), 103712#(<= (+ main_offset 476) main_length), 103715#(<= (+ main_offset 464) main_length), 103714#(<= (+ main_offset 468) main_length), 103717#(<= (+ main_offset 456) main_length), 103716#(<= (+ main_offset 460) main_length), 103718#(<= (+ main_offset 452) main_length), 103567#true, 103569#(<= (+ main_offset 1048) main_length), 103568#false, 103571#(<= (+ main_offset 1040) main_length), 103570#(<= (+ main_offset 1044) main_length), 103573#(<= (+ main_offset 1032) main_length), 103572#(<= (+ main_offset 1036) main_length), 103575#(<= (+ main_offset 1024) main_length), 103574#(<= (+ main_offset 1028) main_length), 103577#(<= (+ main_offset 1016) main_length), 103576#(<= (+ main_offset 1020) main_length), 103579#(<= (+ main_offset 1008) main_length), 103578#(<= (+ main_offset 1012) main_length), 103581#(<= (+ main_offset 1000) main_length), 103580#(<= (+ main_offset 1004) main_length), 103583#(<= (+ main_offset 992) main_length), 103582#(<= (+ main_offset 996) main_length), 103585#(<= (+ main_offset 984) main_length), 103584#(<= (+ main_offset 988) main_length), 103587#(<= (+ main_offset 976) main_length), 103586#(<= (+ main_offset 980) main_length), 103589#(<= (+ main_offset 968) main_length), 103588#(<= (+ main_offset 972) main_length), 103591#(<= (+ main_offset 960) main_length), 103590#(<= (+ main_offset 964) main_length), 103593#(<= (+ main_offset 952) main_length), 103592#(<= (+ main_offset 956) main_length), 103595#(<= (+ main_offset 944) main_length), 103594#(<= (+ main_offset 948) main_length), 103597#(<= (+ main_offset 936) main_length), 103596#(<= (+ main_offset 940) main_length), 103599#(<= (+ main_offset 928) main_length), 103598#(<= (+ main_offset 932) main_length), 103601#(<= (+ main_offset 920) main_length), 103600#(<= (+ main_offset 924) main_length), 103603#(<= (+ main_offset 912) main_length), 103602#(<= (+ main_offset 916) main_length), 103605#(<= (+ main_offset 904) main_length), 103604#(<= (+ main_offset 908) main_length), 103607#(<= (+ main_offset 896) main_length), 103606#(<= (+ main_offset 900) main_length), 103609#(<= (+ main_offset 888) main_length), 103608#(<= (+ main_offset 892) main_length), 103611#(<= (+ main_offset 880) main_length), 103610#(<= (+ main_offset 884) main_length), 103613#(<= (+ main_offset 872) main_length), 103612#(<= (+ main_offset 876) main_length), 103615#(<= (+ main_offset 864) main_length), 103614#(<= (+ main_offset 868) main_length), 103617#(<= (+ main_offset 856) main_length), 103616#(<= (+ main_offset 860) main_length), 103619#(<= (+ main_offset 848) main_length), 103618#(<= (+ main_offset 852) main_length), 103621#(<= (+ main_offset 840) main_length), 103620#(<= (+ main_offset 844) main_length), 103623#(<= (+ main_offset 832) main_length), 103622#(<= (+ main_offset 836) main_length), 103625#(<= (+ main_offset 824) main_length), 103624#(<= (+ main_offset 828) main_length), 103627#(<= (+ main_offset 816) main_length), 103626#(<= (+ main_offset 820) main_length), 103629#(<= (+ main_offset 808) main_length), 103628#(<= (+ main_offset 812) main_length), 103631#(<= (+ main_offset 800) main_length), 103630#(<= (+ main_offset 804) main_length), 103633#(<= (+ main_offset 792) main_length), 103632#(<= (+ main_offset 796) main_length), 103635#(<= (+ main_offset 784) main_length), 103634#(<= (+ main_offset 788) main_length), 103637#(<= (+ main_offset 776) main_length), 103636#(<= (+ main_offset 780) main_length), 103639#(<= (+ main_offset 768) main_length), 103638#(<= (+ main_offset 772) main_length), 103641#(<= (+ main_offset 760) main_length), 103640#(<= (+ main_offset 764) main_length), 103643#(<= (+ main_offset 752) main_length), 103642#(<= (+ main_offset 756) main_length), 103645#(<= (+ main_offset 744) main_length), 103644#(<= (+ main_offset 748) main_length), 103647#(<= (+ main_offset 736) main_length), 103646#(<= (+ main_offset 740) main_length), 103649#(<= (+ main_offset 728) main_length), 103648#(<= (+ main_offset 732) main_length), 103651#(<= (+ main_offset 720) main_length), 103650#(<= (+ main_offset 724) main_length), 103653#(<= (+ main_offset 712) main_length), 103652#(<= (+ main_offset 716) main_length), 103655#(<= (+ main_offset 704) main_length), 103654#(<= (+ main_offset 708) main_length), 103657#(<= (+ main_offset 696) main_length), 103656#(<= (+ main_offset 700) main_length), 103659#(<= (+ main_offset 688) main_length), 103658#(<= (+ main_offset 692) main_length), 103661#(<= (+ main_offset 680) main_length), 103660#(<= (+ main_offset 684) main_length), 103663#(<= (+ main_offset 672) main_length), 103662#(<= (+ main_offset 676) main_length), 103665#(<= (+ main_offset 664) main_length), 103664#(<= (+ main_offset 668) main_length), 103667#(<= (+ main_offset 656) main_length), 103666#(<= (+ main_offset 660) main_length), 103669#(<= (+ main_offset 648) main_length), 103668#(<= (+ main_offset 652) main_length), 103671#(<= (+ main_offset 640) main_length), 103670#(<= (+ main_offset 644) main_length), 103673#(<= (+ main_offset 632) main_length), 103672#(<= (+ main_offset 636) main_length), 103675#(<= (+ main_offset 624) main_length), 103674#(<= (+ main_offset 628) main_length), 103677#(<= (+ main_offset 616) main_length), 103676#(<= (+ main_offset 620) main_length), 103679#(<= (+ main_offset 608) main_length), 103678#(<= (+ main_offset 612) main_length)] [2018-07-23 13:52:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 22350 backedges. 0 proven. 22350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:56,170 INFO L450 AbstractCegarLoop]: Interpolant automaton has 152 states [2018-07-23 13:52:56,171 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2018-07-23 13:52:56,172 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:52:56,172 INFO L87 Difference]: Start difference. First operand 302 states and 302 transitions. Second operand 152 states. [2018-07-23 13:52:56,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:56,476 INFO L93 Difference]: Finished difference Result 305 states and 305 transitions. [2018-07-23 13:52:56,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2018-07-23 13:52:56,476 INFO L78 Accepts]: Start accepts. Automaton has 152 states. Word has length 301 [2018-07-23 13:52:56,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:56,476 INFO L225 Difference]: With dead ends: 305 [2018-07-23 13:52:56,476 INFO L226 Difference]: Without dead ends: 304 [2018-07-23 13:52:56,478 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2018-07-23 13:52:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-07-23 13:52:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2018-07-23 13:52:56,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2018-07-23 13:52:56,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 304 transitions. [2018-07-23 13:52:56,481 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 304 transitions. Word has length 301 [2018-07-23 13:52:56,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:56,482 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 304 transitions. [2018-07-23 13:52:56,482 INFO L472 AbstractCegarLoop]: Interpolant automaton has 152 states. [2018-07-23 13:52:56,482 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 304 transitions. [2018-07-23 13:52:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-07-23 13:52:56,482 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:56,483 INFO L357 BasicCegarLoop]: trace histogram [151, 150, 1, 1] [2018-07-23 13:52:56,483 INFO L414 AbstractCegarLoop]: === Iteration 151 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:56,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1007196172, now seen corresponding path program 150 times [2018-07-23 13:52:56,483 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22650 backedges. 0 proven. 22650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,319 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:57,319 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2018-07-23 13:52:57,319 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,320 INFO L185 omatonBuilderFactory]: Interpolants [104961#(<= (+ main_offset 960) main_length), 104960#(<= (+ main_offset 964) main_length), 104963#(<= (+ main_offset 952) main_length), 104962#(<= (+ main_offset 956) main_length), 104965#(<= (+ main_offset 944) main_length), 104964#(<= (+ main_offset 948) main_length), 104967#(<= (+ main_offset 936) main_length), 104966#(<= (+ main_offset 940) main_length), 104969#(<= (+ main_offset 928) main_length), 104968#(<= (+ main_offset 932) main_length), 104971#(<= (+ main_offset 920) main_length), 104970#(<= (+ main_offset 924) main_length), 104973#(<= (+ main_offset 912) main_length), 104972#(<= (+ main_offset 916) main_length), 104975#(<= (+ main_offset 904) main_length), 104974#(<= (+ main_offset 908) main_length), 104977#(<= (+ main_offset 896) main_length), 104976#(<= (+ main_offset 900) main_length), 104979#(<= (+ main_offset 888) main_length), 104978#(<= (+ main_offset 892) main_length), 104981#(<= (+ main_offset 880) main_length), 104980#(<= (+ main_offset 884) main_length), 104983#(<= (+ main_offset 872) main_length), 104982#(<= (+ main_offset 876) main_length), 104985#(<= (+ main_offset 864) main_length), 104984#(<= (+ main_offset 868) main_length), 104987#(<= (+ main_offset 856) main_length), 104986#(<= (+ main_offset 860) main_length), 104989#(<= (+ main_offset 848) main_length), 104988#(<= (+ main_offset 852) main_length), 104991#(<= (+ main_offset 840) main_length), 104990#(<= (+ main_offset 844) main_length), 104993#(<= (+ main_offset 832) main_length), 104992#(<= (+ main_offset 836) main_length), 104995#(<= (+ main_offset 824) main_length), 104994#(<= (+ main_offset 828) main_length), 104997#(<= (+ main_offset 816) main_length), 104996#(<= (+ main_offset 820) main_length), 104999#(<= (+ main_offset 808) main_length), 104998#(<= (+ main_offset 812) main_length), 105001#(<= (+ main_offset 800) main_length), 105000#(<= (+ main_offset 804) main_length), 105003#(<= (+ main_offset 792) main_length), 105002#(<= (+ main_offset 796) main_length), 105005#(<= (+ main_offset 784) main_length), 105004#(<= (+ main_offset 788) main_length), 105007#(<= (+ main_offset 776) main_length), 105006#(<= (+ main_offset 780) main_length), 105009#(<= (+ main_offset 768) main_length), 105008#(<= (+ main_offset 772) main_length), 105011#(<= (+ main_offset 760) main_length), 105010#(<= (+ main_offset 764) main_length), 105013#(<= (+ main_offset 752) main_length), 105012#(<= (+ main_offset 756) main_length), 105015#(<= (+ main_offset 744) main_length), 105014#(<= (+ main_offset 748) main_length), 105017#(<= (+ main_offset 736) main_length), 105016#(<= (+ main_offset 740) main_length), 105019#(<= (+ main_offset 728) main_length), 105018#(<= (+ main_offset 732) main_length), 105021#(<= (+ main_offset 720) main_length), 105020#(<= (+ main_offset 724) main_length), 105023#(<= (+ main_offset 712) main_length), 105022#(<= (+ main_offset 716) main_length), 105025#(<= (+ main_offset 704) main_length), 105024#(<= (+ main_offset 708) main_length), 105027#(<= (+ main_offset 696) main_length), 105026#(<= (+ main_offset 700) main_length), 105029#(<= (+ main_offset 688) main_length), 105028#(<= (+ main_offset 692) main_length), 105031#(<= (+ main_offset 680) main_length), 105030#(<= (+ main_offset 684) main_length), 105033#(<= (+ main_offset 672) main_length), 105032#(<= (+ main_offset 676) main_length), 105035#(<= (+ main_offset 664) main_length), 105034#(<= (+ main_offset 668) main_length), 105037#(<= (+ main_offset 656) main_length), 105036#(<= (+ main_offset 660) main_length), 105039#(<= (+ main_offset 648) main_length), 105038#(<= (+ main_offset 652) main_length), 105041#(<= (+ main_offset 640) main_length), 105040#(<= (+ main_offset 644) main_length), 105043#(<= (+ main_offset 632) main_length), 105042#(<= (+ main_offset 636) main_length), 105045#(<= (+ main_offset 624) main_length), 105044#(<= (+ main_offset 628) main_length), 105047#(<= (+ main_offset 616) main_length), 105046#(<= (+ main_offset 620) main_length), 105049#(<= (+ main_offset 608) main_length), 105048#(<= (+ main_offset 612) main_length), 105051#(<= (+ main_offset 600) main_length), 105050#(<= (+ main_offset 604) main_length), 105053#(<= (+ main_offset 592) main_length), 105052#(<= (+ main_offset 596) main_length), 105055#(<= (+ main_offset 584) main_length), 105054#(<= (+ main_offset 588) main_length), 105057#(<= (+ main_offset 576) main_length), 105056#(<= (+ main_offset 580) main_length), 105059#(<= (+ main_offset 568) main_length), 105058#(<= (+ main_offset 572) main_length), 105061#(<= (+ main_offset 560) main_length), 105060#(<= (+ main_offset 564) main_length), 105063#(<= (+ main_offset 552) main_length), 105062#(<= (+ main_offset 556) main_length), 105065#(<= (+ main_offset 544) main_length), 105064#(<= (+ main_offset 548) main_length), 105067#(<= (+ main_offset 536) main_length), 105066#(<= (+ main_offset 540) main_length), 105069#(<= (+ main_offset 528) main_length), 105068#(<= (+ main_offset 532) main_length), 105071#(<= (+ main_offset 520) main_length), 105070#(<= (+ main_offset 524) main_length), 105073#(<= (+ main_offset 512) main_length), 105072#(<= (+ main_offset 516) main_length), 105075#(<= (+ main_offset 504) main_length), 105074#(<= (+ main_offset 508) main_length), 105077#(<= (+ main_offset 496) main_length), 105076#(<= (+ main_offset 500) main_length), 105079#(<= (+ main_offset 488) main_length), 105078#(<= (+ main_offset 492) main_length), 105081#(<= (+ main_offset 480) main_length), 105080#(<= (+ main_offset 484) main_length), 105083#(<= (+ main_offset 472) main_length), 105082#(<= (+ main_offset 476) main_length), 105085#(<= (+ main_offset 464) main_length), 105084#(<= (+ main_offset 468) main_length), 105087#(<= (+ main_offset 456) main_length), 105086#(<= (+ main_offset 460) main_length), 105089#(<= (+ main_offset 448) main_length), 105088#(<= (+ main_offset 452) main_length), 104937#true, 104939#(<= (+ main_offset 1048) main_length), 104938#false, 104941#(<= (+ main_offset 1040) main_length), 104940#(<= (+ main_offset 1044) main_length), 104943#(<= (+ main_offset 1032) main_length), 104942#(<= (+ main_offset 1036) main_length), 104945#(<= (+ main_offset 1024) main_length), 104944#(<= (+ main_offset 1028) main_length), 104947#(<= (+ main_offset 1016) main_length), 104946#(<= (+ main_offset 1020) main_length), 104949#(<= (+ main_offset 1008) main_length), 104948#(<= (+ main_offset 1012) main_length), 104951#(<= (+ main_offset 1000) main_length), 104950#(<= (+ main_offset 1004) main_length), 104953#(<= (+ main_offset 992) main_length), 104952#(<= (+ main_offset 996) main_length), 104955#(<= (+ main_offset 984) main_length), 104954#(<= (+ main_offset 988) main_length), 104957#(<= (+ main_offset 976) main_length), 104956#(<= (+ main_offset 980) main_length), 104959#(<= (+ main_offset 968) main_length), 104958#(<= (+ main_offset 972) main_length)] [2018-07-23 13:52:57,321 INFO L134 CoverageAnalysis]: Checked inductivity of 22650 backedges. 0 proven. 22650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:57,321 INFO L450 AbstractCegarLoop]: Interpolant automaton has 153 states [2018-07-23 13:52:57,323 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2018-07-23 13:52:57,323 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:52:57,323 INFO L87 Difference]: Start difference. First operand 304 states and 304 transitions. Second operand 153 states. [2018-07-23 13:52:57,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:57,923 INFO L93 Difference]: Finished difference Result 307 states and 307 transitions. [2018-07-23 13:52:57,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2018-07-23 13:52:57,923 INFO L78 Accepts]: Start accepts. Automaton has 153 states. Word has length 303 [2018-07-23 13:52:57,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:57,924 INFO L225 Difference]: With dead ends: 307 [2018-07-23 13:52:57,924 INFO L226 Difference]: Without dead ends: 306 [2018-07-23 13:52:57,925 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2018-07-23 13:52:57,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-07-23 13:52:57,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2018-07-23 13:52:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2018-07-23 13:52:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2018-07-23 13:52:57,928 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 303 [2018-07-23 13:52:57,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:57,929 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2018-07-23 13:52:57,929 INFO L472 AbstractCegarLoop]: Interpolant automaton has 153 states. [2018-07-23 13:52:57,929 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2018-07-23 13:52:57,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-07-23 13:52:57,930 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:57,930 INFO L357 BasicCegarLoop]: trace histogram [152, 151, 1, 1] [2018-07-23 13:52:57,930 INFO L414 AbstractCegarLoop]: === Iteration 152 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:57,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1547880782, now seen corresponding path program 151 times [2018-07-23 13:52:57,930 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:52:58,741 INFO L134 CoverageAnalysis]: Checked inductivity of 22952 backedges. 0 proven. 22952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,741 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:52:58,741 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2018-07-23 13:52:58,742 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:52:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,742 INFO L185 omatonBuilderFactory]: Interpolants [106317#false, 106316#true, 106319#(<= (+ main_offset 1044) main_length), 106318#(<= (+ main_offset 1048) main_length), 106321#(<= (+ main_offset 1036) main_length), 106320#(<= (+ main_offset 1040) main_length), 106323#(<= (+ main_offset 1028) main_length), 106322#(<= (+ main_offset 1032) main_length), 106325#(<= (+ main_offset 1020) main_length), 106324#(<= (+ main_offset 1024) main_length), 106327#(<= (+ main_offset 1012) main_length), 106326#(<= (+ main_offset 1016) main_length), 106329#(<= (+ main_offset 1004) main_length), 106328#(<= (+ main_offset 1008) main_length), 106331#(<= (+ main_offset 996) main_length), 106330#(<= (+ main_offset 1000) main_length), 106333#(<= (+ main_offset 988) main_length), 106332#(<= (+ main_offset 992) main_length), 106335#(<= (+ main_offset 980) main_length), 106334#(<= (+ main_offset 984) main_length), 106337#(<= (+ main_offset 972) main_length), 106336#(<= (+ main_offset 976) main_length), 106339#(<= (+ main_offset 964) main_length), 106338#(<= (+ main_offset 968) main_length), 106341#(<= (+ main_offset 956) main_length), 106340#(<= (+ main_offset 960) main_length), 106343#(<= (+ main_offset 948) main_length), 106342#(<= (+ main_offset 952) main_length), 106345#(<= (+ main_offset 940) main_length), 106344#(<= (+ main_offset 944) main_length), 106347#(<= (+ main_offset 932) main_length), 106346#(<= (+ main_offset 936) main_length), 106349#(<= (+ main_offset 924) main_length), 106348#(<= (+ main_offset 928) main_length), 106351#(<= (+ main_offset 916) main_length), 106350#(<= (+ main_offset 920) main_length), 106353#(<= (+ main_offset 908) main_length), 106352#(<= (+ main_offset 912) main_length), 106355#(<= (+ main_offset 900) main_length), 106354#(<= (+ main_offset 904) main_length), 106357#(<= (+ main_offset 892) main_length), 106356#(<= (+ main_offset 896) main_length), 106359#(<= (+ main_offset 884) main_length), 106358#(<= (+ main_offset 888) main_length), 106361#(<= (+ main_offset 876) main_length), 106360#(<= (+ main_offset 880) main_length), 106363#(<= (+ main_offset 868) main_length), 106362#(<= (+ main_offset 872) main_length), 106365#(<= (+ main_offset 860) main_length), 106364#(<= (+ main_offset 864) main_length), 106367#(<= (+ main_offset 852) main_length), 106366#(<= (+ main_offset 856) main_length), 106369#(<= (+ main_offset 844) main_length), 106368#(<= (+ main_offset 848) main_length), 106371#(<= (+ main_offset 836) main_length), 106370#(<= (+ main_offset 840) main_length), 106373#(<= (+ main_offset 828) main_length), 106372#(<= (+ main_offset 832) main_length), 106375#(<= (+ main_offset 820) main_length), 106374#(<= (+ main_offset 824) main_length), 106377#(<= (+ main_offset 812) main_length), 106376#(<= (+ main_offset 816) main_length), 106379#(<= (+ main_offset 804) main_length), 106378#(<= (+ main_offset 808) main_length), 106381#(<= (+ main_offset 796) main_length), 106380#(<= (+ main_offset 800) main_length), 106383#(<= (+ main_offset 788) main_length), 106382#(<= (+ main_offset 792) main_length), 106385#(<= (+ main_offset 780) main_length), 106384#(<= (+ main_offset 784) main_length), 106387#(<= (+ main_offset 772) main_length), 106386#(<= (+ main_offset 776) main_length), 106389#(<= (+ main_offset 764) main_length), 106388#(<= (+ main_offset 768) main_length), 106391#(<= (+ main_offset 756) main_length), 106390#(<= (+ main_offset 760) main_length), 106393#(<= (+ main_offset 748) main_length), 106392#(<= (+ main_offset 752) main_length), 106395#(<= (+ main_offset 740) main_length), 106394#(<= (+ main_offset 744) main_length), 106397#(<= (+ main_offset 732) main_length), 106396#(<= (+ main_offset 736) main_length), 106399#(<= (+ main_offset 724) main_length), 106398#(<= (+ main_offset 728) main_length), 106401#(<= (+ main_offset 716) main_length), 106400#(<= (+ main_offset 720) main_length), 106403#(<= (+ main_offset 708) main_length), 106402#(<= (+ main_offset 712) main_length), 106405#(<= (+ main_offset 700) main_length), 106404#(<= (+ main_offset 704) main_length), 106407#(<= (+ main_offset 692) main_length), 106406#(<= (+ main_offset 696) main_length), 106409#(<= (+ main_offset 684) main_length), 106408#(<= (+ main_offset 688) main_length), 106411#(<= (+ main_offset 676) main_length), 106410#(<= (+ main_offset 680) main_length), 106413#(<= (+ main_offset 668) main_length), 106412#(<= (+ main_offset 672) main_length), 106415#(<= (+ main_offset 660) main_length), 106414#(<= (+ main_offset 664) main_length), 106417#(<= (+ main_offset 652) main_length), 106416#(<= (+ main_offset 656) main_length), 106419#(<= (+ main_offset 644) main_length), 106418#(<= (+ main_offset 648) main_length), 106421#(<= (+ main_offset 636) main_length), 106420#(<= (+ main_offset 640) main_length), 106423#(<= (+ main_offset 628) main_length), 106422#(<= (+ main_offset 632) main_length), 106425#(<= (+ main_offset 620) main_length), 106424#(<= (+ main_offset 624) main_length), 106427#(<= (+ main_offset 612) main_length), 106426#(<= (+ main_offset 616) main_length), 106429#(<= (+ main_offset 604) main_length), 106428#(<= (+ main_offset 608) main_length), 106431#(<= (+ main_offset 596) main_length), 106430#(<= (+ main_offset 600) main_length), 106433#(<= (+ main_offset 588) main_length), 106432#(<= (+ main_offset 592) main_length), 106435#(<= (+ main_offset 580) main_length), 106434#(<= (+ main_offset 584) main_length), 106437#(<= (+ main_offset 572) main_length), 106436#(<= (+ main_offset 576) main_length), 106439#(<= (+ main_offset 564) main_length), 106438#(<= (+ main_offset 568) main_length), 106441#(<= (+ main_offset 556) main_length), 106440#(<= (+ main_offset 560) main_length), 106443#(<= (+ main_offset 548) main_length), 106442#(<= (+ main_offset 552) main_length), 106445#(<= (+ main_offset 540) main_length), 106444#(<= (+ main_offset 544) main_length), 106447#(<= (+ main_offset 532) main_length), 106446#(<= (+ main_offset 536) main_length), 106449#(<= (+ main_offset 524) main_length), 106448#(<= (+ main_offset 528) main_length), 106451#(<= (+ main_offset 516) main_length), 106450#(<= (+ main_offset 520) main_length), 106453#(<= (+ main_offset 508) main_length), 106452#(<= (+ main_offset 512) main_length), 106455#(<= (+ main_offset 500) main_length), 106454#(<= (+ main_offset 504) main_length), 106457#(<= (+ main_offset 492) main_length), 106456#(<= (+ main_offset 496) main_length), 106459#(<= (+ main_offset 484) main_length), 106458#(<= (+ main_offset 488) main_length), 106461#(<= (+ main_offset 476) main_length), 106460#(<= (+ main_offset 480) main_length), 106463#(<= (+ main_offset 468) main_length), 106462#(<= (+ main_offset 472) main_length), 106465#(<= (+ main_offset 460) main_length), 106464#(<= (+ main_offset 464) main_length), 106467#(<= (+ main_offset 452) main_length), 106466#(<= (+ main_offset 456) main_length), 106469#(<= (+ main_offset 444) main_length), 106468#(<= (+ main_offset 448) main_length)] [2018-07-23 13:52:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22952 backedges. 0 proven. 22952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:52:58,743 INFO L450 AbstractCegarLoop]: Interpolant automaton has 154 states [2018-07-23 13:52:58,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2018-07-23 13:52:58,746 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:52:58,746 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand 154 states. [2018-07-23 13:52:59,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:52:59,379 INFO L93 Difference]: Finished difference Result 309 states and 309 transitions. [2018-07-23 13:52:59,380 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2018-07-23 13:52:59,380 INFO L78 Accepts]: Start accepts. Automaton has 154 states. Word has length 305 [2018-07-23 13:52:59,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:52:59,381 INFO L225 Difference]: With dead ends: 309 [2018-07-23 13:52:59,381 INFO L226 Difference]: Without dead ends: 308 [2018-07-23 13:52:59,383 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2018-07-23 13:52:59,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-07-23 13:52:59,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2018-07-23 13:52:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-07-23 13:52:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 308 transitions. [2018-07-23 13:52:59,389 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 308 transitions. Word has length 305 [2018-07-23 13:52:59,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:52:59,389 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 308 transitions. [2018-07-23 13:52:59,389 INFO L472 AbstractCegarLoop]: Interpolant automaton has 154 states. [2018-07-23 13:52:59,389 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 308 transitions. [2018-07-23 13:52:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2018-07-23 13:52:59,391 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:52:59,391 INFO L357 BasicCegarLoop]: trace histogram [153, 152, 1, 1] [2018-07-23 13:52:59,391 INFO L414 AbstractCegarLoop]: === Iteration 153 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:52:59,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1454748176, now seen corresponding path program 152 times [2018-07-23 13:52:59,391 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:52:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 23256 backedges. 0 proven. 23256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,336 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:00,336 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2018-07-23 13:53:00,336 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:00,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,337 INFO L185 omatonBuilderFactory]: Interpolants [107777#(<= (+ main_offset 764) main_length), 107776#(<= (+ main_offset 768) main_length), 107779#(<= (+ main_offset 756) main_length), 107778#(<= (+ main_offset 760) main_length), 107781#(<= (+ main_offset 748) main_length), 107780#(<= (+ main_offset 752) main_length), 107783#(<= (+ main_offset 740) main_length), 107782#(<= (+ main_offset 744) main_length), 107785#(<= (+ main_offset 732) main_length), 107784#(<= (+ main_offset 736) main_length), 107787#(<= (+ main_offset 724) main_length), 107786#(<= (+ main_offset 728) main_length), 107789#(<= (+ main_offset 716) main_length), 107788#(<= (+ main_offset 720) main_length), 107791#(<= (+ main_offset 708) main_length), 107790#(<= (+ main_offset 712) main_length), 107793#(<= (+ main_offset 700) main_length), 107792#(<= (+ main_offset 704) main_length), 107795#(<= (+ main_offset 692) main_length), 107794#(<= (+ main_offset 696) main_length), 107797#(<= (+ main_offset 684) main_length), 107796#(<= (+ main_offset 688) main_length), 107799#(<= (+ main_offset 676) main_length), 107798#(<= (+ main_offset 680) main_length), 107801#(<= (+ main_offset 668) main_length), 107800#(<= (+ main_offset 672) main_length), 107803#(<= (+ main_offset 660) main_length), 107802#(<= (+ main_offset 664) main_length), 107805#(<= (+ main_offset 652) main_length), 107804#(<= (+ main_offset 656) main_length), 107807#(<= (+ main_offset 644) main_length), 107806#(<= (+ main_offset 648) main_length), 107809#(<= (+ main_offset 636) main_length), 107808#(<= (+ main_offset 640) main_length), 107811#(<= (+ main_offset 628) main_length), 107810#(<= (+ main_offset 632) main_length), 107813#(<= (+ main_offset 620) main_length), 107812#(<= (+ main_offset 624) main_length), 107815#(<= (+ main_offset 612) main_length), 107814#(<= (+ main_offset 616) main_length), 107817#(<= (+ main_offset 604) main_length), 107816#(<= (+ main_offset 608) main_length), 107819#(<= (+ main_offset 596) main_length), 107818#(<= (+ main_offset 600) main_length), 107821#(<= (+ main_offset 588) main_length), 107820#(<= (+ main_offset 592) main_length), 107823#(<= (+ main_offset 580) main_length), 107822#(<= (+ main_offset 584) main_length), 107825#(<= (+ main_offset 572) main_length), 107824#(<= (+ main_offset 576) main_length), 107827#(<= (+ main_offset 564) main_length), 107826#(<= (+ main_offset 568) main_length), 107829#(<= (+ main_offset 556) main_length), 107828#(<= (+ main_offset 560) main_length), 107831#(<= (+ main_offset 548) main_length), 107830#(<= (+ main_offset 552) main_length), 107833#(<= (+ main_offset 540) main_length), 107832#(<= (+ main_offset 544) main_length), 107835#(<= (+ main_offset 532) main_length), 107834#(<= (+ main_offset 536) main_length), 107837#(<= (+ main_offset 524) main_length), 107836#(<= (+ main_offset 528) main_length), 107839#(<= (+ main_offset 516) main_length), 107838#(<= (+ main_offset 520) main_length), 107841#(<= (+ main_offset 508) main_length), 107840#(<= (+ main_offset 512) main_length), 107843#(<= (+ main_offset 500) main_length), 107842#(<= (+ main_offset 504) main_length), 107845#(<= (+ main_offset 492) main_length), 107844#(<= (+ main_offset 496) main_length), 107847#(<= (+ main_offset 484) main_length), 107846#(<= (+ main_offset 488) main_length), 107849#(<= (+ main_offset 476) main_length), 107848#(<= (+ main_offset 480) main_length), 107851#(<= (+ main_offset 468) main_length), 107850#(<= (+ main_offset 472) main_length), 107853#(<= (+ main_offset 460) main_length), 107852#(<= (+ main_offset 464) main_length), 107855#(<= (+ main_offset 452) main_length), 107854#(<= (+ main_offset 456) main_length), 107857#(<= (+ main_offset 444) main_length), 107856#(<= (+ main_offset 448) main_length), 107858#(<= (+ main_offset 440) main_length), 107705#false, 107704#true, 107707#(<= (+ main_offset 1044) main_length), 107706#(<= (+ main_offset 1048) main_length), 107709#(<= (+ main_offset 1036) main_length), 107708#(<= (+ main_offset 1040) main_length), 107711#(<= (+ main_offset 1028) main_length), 107710#(<= (+ main_offset 1032) main_length), 107713#(<= (+ main_offset 1020) main_length), 107712#(<= (+ main_offset 1024) main_length), 107715#(<= (+ main_offset 1012) main_length), 107714#(<= (+ main_offset 1016) main_length), 107717#(<= (+ main_offset 1004) main_length), 107716#(<= (+ main_offset 1008) main_length), 107719#(<= (+ main_offset 996) main_length), 107718#(<= (+ main_offset 1000) main_length), 107721#(<= (+ main_offset 988) main_length), 107720#(<= (+ main_offset 992) main_length), 107723#(<= (+ main_offset 980) main_length), 107722#(<= (+ main_offset 984) main_length), 107725#(<= (+ main_offset 972) main_length), 107724#(<= (+ main_offset 976) main_length), 107727#(<= (+ main_offset 964) main_length), 107726#(<= (+ main_offset 968) main_length), 107729#(<= (+ main_offset 956) main_length), 107728#(<= (+ main_offset 960) main_length), 107731#(<= (+ main_offset 948) main_length), 107730#(<= (+ main_offset 952) main_length), 107733#(<= (+ main_offset 940) main_length), 107732#(<= (+ main_offset 944) main_length), 107735#(<= (+ main_offset 932) main_length), 107734#(<= (+ main_offset 936) main_length), 107737#(<= (+ main_offset 924) main_length), 107736#(<= (+ main_offset 928) main_length), 107739#(<= (+ main_offset 916) main_length), 107738#(<= (+ main_offset 920) main_length), 107741#(<= (+ main_offset 908) main_length), 107740#(<= (+ main_offset 912) main_length), 107743#(<= (+ main_offset 900) main_length), 107742#(<= (+ main_offset 904) main_length), 107745#(<= (+ main_offset 892) main_length), 107744#(<= (+ main_offset 896) main_length), 107747#(<= (+ main_offset 884) main_length), 107746#(<= (+ main_offset 888) main_length), 107749#(<= (+ main_offset 876) main_length), 107748#(<= (+ main_offset 880) main_length), 107751#(<= (+ main_offset 868) main_length), 107750#(<= (+ main_offset 872) main_length), 107753#(<= (+ main_offset 860) main_length), 107752#(<= (+ main_offset 864) main_length), 107755#(<= (+ main_offset 852) main_length), 107754#(<= (+ main_offset 856) main_length), 107757#(<= (+ main_offset 844) main_length), 107756#(<= (+ main_offset 848) main_length), 107759#(<= (+ main_offset 836) main_length), 107758#(<= (+ main_offset 840) main_length), 107761#(<= (+ main_offset 828) main_length), 107760#(<= (+ main_offset 832) main_length), 107763#(<= (+ main_offset 820) main_length), 107762#(<= (+ main_offset 824) main_length), 107765#(<= (+ main_offset 812) main_length), 107764#(<= (+ main_offset 816) main_length), 107767#(<= (+ main_offset 804) main_length), 107766#(<= (+ main_offset 808) main_length), 107769#(<= (+ main_offset 796) main_length), 107768#(<= (+ main_offset 800) main_length), 107771#(<= (+ main_offset 788) main_length), 107770#(<= (+ main_offset 792) main_length), 107773#(<= (+ main_offset 780) main_length), 107772#(<= (+ main_offset 784) main_length), 107775#(<= (+ main_offset 772) main_length), 107774#(<= (+ main_offset 776) main_length)] [2018-07-23 13:53:00,338 INFO L134 CoverageAnalysis]: Checked inductivity of 23256 backedges. 0 proven. 23256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:00,338 INFO L450 AbstractCegarLoop]: Interpolant automaton has 155 states [2018-07-23 13:53:00,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2018-07-23 13:53:00,340 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:53:00,341 INFO L87 Difference]: Start difference. First operand 308 states and 308 transitions. Second operand 155 states. [2018-07-23 13:53:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:00,624 INFO L93 Difference]: Finished difference Result 311 states and 311 transitions. [2018-07-23 13:53:00,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2018-07-23 13:53:00,624 INFO L78 Accepts]: Start accepts. Automaton has 155 states. Word has length 307 [2018-07-23 13:53:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:00,625 INFO L225 Difference]: With dead ends: 311 [2018-07-23 13:53:00,625 INFO L226 Difference]: Without dead ends: 310 [2018-07-23 13:53:00,626 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2018-07-23 13:53:00,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2018-07-23 13:53:00,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2018-07-23 13:53:00,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-07-23 13:53:00,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 310 transitions. [2018-07-23 13:53:00,630 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 310 transitions. Word has length 307 [2018-07-23 13:53:00,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:00,630 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 310 transitions. [2018-07-23 13:53:00,631 INFO L472 AbstractCegarLoop]: Interpolant automaton has 155 states. [2018-07-23 13:53:00,631 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 310 transitions. [2018-07-23 13:53:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-07-23 13:53:00,631 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:00,631 INFO L357 BasicCegarLoop]: trace histogram [154, 153, 1, 1] [2018-07-23 13:53:00,632 INFO L414 AbstractCegarLoop]: === Iteration 154 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:00,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2146340270, now seen corresponding path program 153 times [2018-07-23 13:53:00,632 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 23562 backedges. 0 proven. 23562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,499 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:01,499 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2018-07-23 13:53:01,499 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,499 INFO L185 omatonBuilderFactory]: Interpolants [109101#true, 109103#(<= (+ main_offset 1048) main_length), 109102#false, 109105#(<= (+ main_offset 1040) main_length), 109104#(<= (+ main_offset 1044) main_length), 109107#(<= (+ main_offset 1032) main_length), 109106#(<= (+ main_offset 1036) main_length), 109109#(<= (+ main_offset 1024) main_length), 109108#(<= (+ main_offset 1028) main_length), 109111#(<= (+ main_offset 1016) main_length), 109110#(<= (+ main_offset 1020) main_length), 109113#(<= (+ main_offset 1008) main_length), 109112#(<= (+ main_offset 1012) main_length), 109115#(<= (+ main_offset 1000) main_length), 109114#(<= (+ main_offset 1004) main_length), 109117#(<= (+ main_offset 992) main_length), 109116#(<= (+ main_offset 996) main_length), 109119#(<= (+ main_offset 984) main_length), 109118#(<= (+ main_offset 988) main_length), 109121#(<= (+ main_offset 976) main_length), 109120#(<= (+ main_offset 980) main_length), 109123#(<= (+ main_offset 968) main_length), 109122#(<= (+ main_offset 972) main_length), 109125#(<= (+ main_offset 960) main_length), 109124#(<= (+ main_offset 964) main_length), 109127#(<= (+ main_offset 952) main_length), 109126#(<= (+ main_offset 956) main_length), 109129#(<= (+ main_offset 944) main_length), 109128#(<= (+ main_offset 948) main_length), 109131#(<= (+ main_offset 936) main_length), 109130#(<= (+ main_offset 940) main_length), 109133#(<= (+ main_offset 928) main_length), 109132#(<= (+ main_offset 932) main_length), 109135#(<= (+ main_offset 920) main_length), 109134#(<= (+ main_offset 924) main_length), 109137#(<= (+ main_offset 912) main_length), 109136#(<= (+ main_offset 916) main_length), 109139#(<= (+ main_offset 904) main_length), 109138#(<= (+ main_offset 908) main_length), 109141#(<= (+ main_offset 896) main_length), 109140#(<= (+ main_offset 900) main_length), 109143#(<= (+ main_offset 888) main_length), 109142#(<= (+ main_offset 892) main_length), 109145#(<= (+ main_offset 880) main_length), 109144#(<= (+ main_offset 884) main_length), 109147#(<= (+ main_offset 872) main_length), 109146#(<= (+ main_offset 876) main_length), 109149#(<= (+ main_offset 864) main_length), 109148#(<= (+ main_offset 868) main_length), 109151#(<= (+ main_offset 856) main_length), 109150#(<= (+ main_offset 860) main_length), 109153#(<= (+ main_offset 848) main_length), 109152#(<= (+ main_offset 852) main_length), 109155#(<= (+ main_offset 840) main_length), 109154#(<= (+ main_offset 844) main_length), 109157#(<= (+ main_offset 832) main_length), 109156#(<= (+ main_offset 836) main_length), 109159#(<= (+ main_offset 824) main_length), 109158#(<= (+ main_offset 828) main_length), 109161#(<= (+ main_offset 816) main_length), 109160#(<= (+ main_offset 820) main_length), 109163#(<= (+ main_offset 808) main_length), 109162#(<= (+ main_offset 812) main_length), 109165#(<= (+ main_offset 800) main_length), 109164#(<= (+ main_offset 804) main_length), 109167#(<= (+ main_offset 792) main_length), 109166#(<= (+ main_offset 796) main_length), 109169#(<= (+ main_offset 784) main_length), 109168#(<= (+ main_offset 788) main_length), 109171#(<= (+ main_offset 776) main_length), 109170#(<= (+ main_offset 780) main_length), 109173#(<= (+ main_offset 768) main_length), 109172#(<= (+ main_offset 772) main_length), 109175#(<= (+ main_offset 760) main_length), 109174#(<= (+ main_offset 764) main_length), 109177#(<= (+ main_offset 752) main_length), 109176#(<= (+ main_offset 756) main_length), 109179#(<= (+ main_offset 744) main_length), 109178#(<= (+ main_offset 748) main_length), 109181#(<= (+ main_offset 736) main_length), 109180#(<= (+ main_offset 740) main_length), 109183#(<= (+ main_offset 728) main_length), 109182#(<= (+ main_offset 732) main_length), 109185#(<= (+ main_offset 720) main_length), 109184#(<= (+ main_offset 724) main_length), 109187#(<= (+ main_offset 712) main_length), 109186#(<= (+ main_offset 716) main_length), 109189#(<= (+ main_offset 704) main_length), 109188#(<= (+ main_offset 708) main_length), 109191#(<= (+ main_offset 696) main_length), 109190#(<= (+ main_offset 700) main_length), 109193#(<= (+ main_offset 688) main_length), 109192#(<= (+ main_offset 692) main_length), 109195#(<= (+ main_offset 680) main_length), 109194#(<= (+ main_offset 684) main_length), 109197#(<= (+ main_offset 672) main_length), 109196#(<= (+ main_offset 676) main_length), 109199#(<= (+ main_offset 664) main_length), 109198#(<= (+ main_offset 668) main_length), 109201#(<= (+ main_offset 656) main_length), 109200#(<= (+ main_offset 660) main_length), 109203#(<= (+ main_offset 648) main_length), 109202#(<= (+ main_offset 652) main_length), 109205#(<= (+ main_offset 640) main_length), 109204#(<= (+ main_offset 644) main_length), 109207#(<= (+ main_offset 632) main_length), 109206#(<= (+ main_offset 636) main_length), 109209#(<= (+ main_offset 624) main_length), 109208#(<= (+ main_offset 628) main_length), 109211#(<= (+ main_offset 616) main_length), 109210#(<= (+ main_offset 620) main_length), 109213#(<= (+ main_offset 608) main_length), 109212#(<= (+ main_offset 612) main_length), 109215#(<= (+ main_offset 600) main_length), 109214#(<= (+ main_offset 604) main_length), 109217#(<= (+ main_offset 592) main_length), 109216#(<= (+ main_offset 596) main_length), 109219#(<= (+ main_offset 584) main_length), 109218#(<= (+ main_offset 588) main_length), 109221#(<= (+ main_offset 576) main_length), 109220#(<= (+ main_offset 580) main_length), 109223#(<= (+ main_offset 568) main_length), 109222#(<= (+ main_offset 572) main_length), 109225#(<= (+ main_offset 560) main_length), 109224#(<= (+ main_offset 564) main_length), 109227#(<= (+ main_offset 552) main_length), 109226#(<= (+ main_offset 556) main_length), 109229#(<= (+ main_offset 544) main_length), 109228#(<= (+ main_offset 548) main_length), 109231#(<= (+ main_offset 536) main_length), 109230#(<= (+ main_offset 540) main_length), 109233#(<= (+ main_offset 528) main_length), 109232#(<= (+ main_offset 532) main_length), 109235#(<= (+ main_offset 520) main_length), 109234#(<= (+ main_offset 524) main_length), 109237#(<= (+ main_offset 512) main_length), 109236#(<= (+ main_offset 516) main_length), 109239#(<= (+ main_offset 504) main_length), 109238#(<= (+ main_offset 508) main_length), 109241#(<= (+ main_offset 496) main_length), 109240#(<= (+ main_offset 500) main_length), 109243#(<= (+ main_offset 488) main_length), 109242#(<= (+ main_offset 492) main_length), 109245#(<= (+ main_offset 480) main_length), 109244#(<= (+ main_offset 484) main_length), 109247#(<= (+ main_offset 472) main_length), 109246#(<= (+ main_offset 476) main_length), 109249#(<= (+ main_offset 464) main_length), 109248#(<= (+ main_offset 468) main_length), 109251#(<= (+ main_offset 456) main_length), 109250#(<= (+ main_offset 460) main_length), 109253#(<= (+ main_offset 448) main_length), 109252#(<= (+ main_offset 452) main_length), 109255#(<= (+ main_offset 440) main_length), 109254#(<= (+ main_offset 444) main_length), 109256#(<= (+ main_offset 436) main_length)] [2018-07-23 13:53:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 23562 backedges. 0 proven. 23562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:01,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 156 states [2018-07-23 13:53:01,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 156 interpolants. [2018-07-23 13:53:01,503 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:53:01,503 INFO L87 Difference]: Start difference. First operand 310 states and 310 transitions. Second operand 156 states. [2018-07-23 13:53:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:02,196 INFO L93 Difference]: Finished difference Result 313 states and 313 transitions. [2018-07-23 13:53:02,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2018-07-23 13:53:02,196 INFO L78 Accepts]: Start accepts. Automaton has 156 states. Word has length 309 [2018-07-23 13:53:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:02,197 INFO L225 Difference]: With dead ends: 313 [2018-07-23 13:53:02,197 INFO L226 Difference]: Without dead ends: 312 [2018-07-23 13:53:02,199 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2018-07-23 13:53:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-07-23 13:53:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2018-07-23 13:53:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-07-23 13:53:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 312 transitions. [2018-07-23 13:53:02,205 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 312 transitions. Word has length 309 [2018-07-23 13:53:02,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:02,205 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 312 transitions. [2018-07-23 13:53:02,205 INFO L472 AbstractCegarLoop]: Interpolant automaton has 156 states. [2018-07-23 13:53:02,205 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 312 transitions. [2018-07-23 13:53:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-07-23 13:53:02,206 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:02,207 INFO L357 BasicCegarLoop]: trace histogram [155, 154, 1, 1] [2018-07-23 13:53:02,207 INFO L414 AbstractCegarLoop]: === Iteration 155 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:02,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1048696300, now seen corresponding path program 154 times [2018-07-23 13:53:02,207 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 23870 backedges. 0 proven. 23870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:03,372 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:03,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2018-07-23 13:53:03,373 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:03,373 INFO L185 omatonBuilderFactory]: Interpolants [110593#(<= (+ main_offset 712) main_length), 110592#(<= (+ main_offset 716) main_length), 110595#(<= (+ main_offset 704) main_length), 110594#(<= (+ main_offset 708) main_length), 110597#(<= (+ main_offset 696) main_length), 110596#(<= (+ main_offset 700) main_length), 110599#(<= (+ main_offset 688) main_length), 110598#(<= (+ main_offset 692) main_length), 110601#(<= (+ main_offset 680) main_length), 110600#(<= (+ main_offset 684) main_length), 110603#(<= (+ main_offset 672) main_length), 110602#(<= (+ main_offset 676) main_length), 110605#(<= (+ main_offset 664) main_length), 110604#(<= (+ main_offset 668) main_length), 110607#(<= (+ main_offset 656) main_length), 110606#(<= (+ main_offset 660) main_length), 110609#(<= (+ main_offset 648) main_length), 110608#(<= (+ main_offset 652) main_length), 110611#(<= (+ main_offset 640) main_length), 110610#(<= (+ main_offset 644) main_length), 110613#(<= (+ main_offset 632) main_length), 110612#(<= (+ main_offset 636) main_length), 110615#(<= (+ main_offset 624) main_length), 110614#(<= (+ main_offset 628) main_length), 110617#(<= (+ main_offset 616) main_length), 110616#(<= (+ main_offset 620) main_length), 110619#(<= (+ main_offset 608) main_length), 110618#(<= (+ main_offset 612) main_length), 110621#(<= (+ main_offset 600) main_length), 110620#(<= (+ main_offset 604) main_length), 110623#(<= (+ main_offset 592) main_length), 110622#(<= (+ main_offset 596) main_length), 110625#(<= (+ main_offset 584) main_length), 110624#(<= (+ main_offset 588) main_length), 110627#(<= (+ main_offset 576) main_length), 110626#(<= (+ main_offset 580) main_length), 110629#(<= (+ main_offset 568) main_length), 110628#(<= (+ main_offset 572) main_length), 110631#(<= (+ main_offset 560) main_length), 110630#(<= (+ main_offset 564) main_length), 110633#(<= (+ main_offset 552) main_length), 110632#(<= (+ main_offset 556) main_length), 110635#(<= (+ main_offset 544) main_length), 110634#(<= (+ main_offset 548) main_length), 110637#(<= (+ main_offset 536) main_length), 110636#(<= (+ main_offset 540) main_length), 110639#(<= (+ main_offset 528) main_length), 110638#(<= (+ main_offset 532) main_length), 110641#(<= (+ main_offset 520) main_length), 110640#(<= (+ main_offset 524) main_length), 110643#(<= (+ main_offset 512) main_length), 110642#(<= (+ main_offset 516) main_length), 110645#(<= (+ main_offset 504) main_length), 110644#(<= (+ main_offset 508) main_length), 110647#(<= (+ main_offset 496) main_length), 110646#(<= (+ main_offset 500) main_length), 110649#(<= (+ main_offset 488) main_length), 110648#(<= (+ main_offset 492) main_length), 110651#(<= (+ main_offset 480) main_length), 110650#(<= (+ main_offset 484) main_length), 110653#(<= (+ main_offset 472) main_length), 110652#(<= (+ main_offset 476) main_length), 110655#(<= (+ main_offset 464) main_length), 110654#(<= (+ main_offset 468) main_length), 110657#(<= (+ main_offset 456) main_length), 110656#(<= (+ main_offset 460) main_length), 110659#(<= (+ main_offset 448) main_length), 110658#(<= (+ main_offset 452) main_length), 110661#(<= (+ main_offset 440) main_length), 110660#(<= (+ main_offset 444) main_length), 110663#(<= (+ main_offset 432) main_length), 110662#(<= (+ main_offset 436) main_length), 110507#true, 110509#(<= (+ main_offset 1048) main_length), 110508#false, 110511#(<= (+ main_offset 1040) main_length), 110510#(<= (+ main_offset 1044) main_length), 110513#(<= (+ main_offset 1032) main_length), 110512#(<= (+ main_offset 1036) main_length), 110515#(<= (+ main_offset 1024) main_length), 110514#(<= (+ main_offset 1028) main_length), 110517#(<= (+ main_offset 1016) main_length), 110516#(<= (+ main_offset 1020) main_length), 110519#(<= (+ main_offset 1008) main_length), 110518#(<= (+ main_offset 1012) main_length), 110521#(<= (+ main_offset 1000) main_length), 110520#(<= (+ main_offset 1004) main_length), 110523#(<= (+ main_offset 992) main_length), 110522#(<= (+ main_offset 996) main_length), 110525#(<= (+ main_offset 984) main_length), 110524#(<= (+ main_offset 988) main_length), 110527#(<= (+ main_offset 976) main_length), 110526#(<= (+ main_offset 980) main_length), 110529#(<= (+ main_offset 968) main_length), 110528#(<= (+ main_offset 972) main_length), 110531#(<= (+ main_offset 960) main_length), 110530#(<= (+ main_offset 964) main_length), 110533#(<= (+ main_offset 952) main_length), 110532#(<= (+ main_offset 956) main_length), 110535#(<= (+ main_offset 944) main_length), 110534#(<= (+ main_offset 948) main_length), 110537#(<= (+ main_offset 936) main_length), 110536#(<= (+ main_offset 940) main_length), 110539#(<= (+ main_offset 928) main_length), 110538#(<= (+ main_offset 932) main_length), 110541#(<= (+ main_offset 920) main_length), 110540#(<= (+ main_offset 924) main_length), 110543#(<= (+ main_offset 912) main_length), 110542#(<= (+ main_offset 916) main_length), 110545#(<= (+ main_offset 904) main_length), 110544#(<= (+ main_offset 908) main_length), 110547#(<= (+ main_offset 896) main_length), 110546#(<= (+ main_offset 900) main_length), 110549#(<= (+ main_offset 888) main_length), 110548#(<= (+ main_offset 892) main_length), 110551#(<= (+ main_offset 880) main_length), 110550#(<= (+ main_offset 884) main_length), 110553#(<= (+ main_offset 872) main_length), 110552#(<= (+ main_offset 876) main_length), 110555#(<= (+ main_offset 864) main_length), 110554#(<= (+ main_offset 868) main_length), 110557#(<= (+ main_offset 856) main_length), 110556#(<= (+ main_offset 860) main_length), 110559#(<= (+ main_offset 848) main_length), 110558#(<= (+ main_offset 852) main_length), 110561#(<= (+ main_offset 840) main_length), 110560#(<= (+ main_offset 844) main_length), 110563#(<= (+ main_offset 832) main_length), 110562#(<= (+ main_offset 836) main_length), 110565#(<= (+ main_offset 824) main_length), 110564#(<= (+ main_offset 828) main_length), 110567#(<= (+ main_offset 816) main_length), 110566#(<= (+ main_offset 820) main_length), 110569#(<= (+ main_offset 808) main_length), 110568#(<= (+ main_offset 812) main_length), 110571#(<= (+ main_offset 800) main_length), 110570#(<= (+ main_offset 804) main_length), 110573#(<= (+ main_offset 792) main_length), 110572#(<= (+ main_offset 796) main_length), 110575#(<= (+ main_offset 784) main_length), 110574#(<= (+ main_offset 788) main_length), 110577#(<= (+ main_offset 776) main_length), 110576#(<= (+ main_offset 780) main_length), 110579#(<= (+ main_offset 768) main_length), 110578#(<= (+ main_offset 772) main_length), 110581#(<= (+ main_offset 760) main_length), 110580#(<= (+ main_offset 764) main_length), 110583#(<= (+ main_offset 752) main_length), 110582#(<= (+ main_offset 756) main_length), 110585#(<= (+ main_offset 744) main_length), 110584#(<= (+ main_offset 748) main_length), 110587#(<= (+ main_offset 736) main_length), 110586#(<= (+ main_offset 740) main_length), 110589#(<= (+ main_offset 728) main_length), 110588#(<= (+ main_offset 732) main_length), 110591#(<= (+ main_offset 720) main_length), 110590#(<= (+ main_offset 724) main_length)] [2018-07-23 13:53:03,374 INFO L134 CoverageAnalysis]: Checked inductivity of 23870 backedges. 0 proven. 23870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:03,374 INFO L450 AbstractCegarLoop]: Interpolant automaton has 157 states [2018-07-23 13:53:03,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2018-07-23 13:53:03,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:53:03,377 INFO L87 Difference]: Start difference. First operand 312 states and 312 transitions. Second operand 157 states. [2018-07-23 13:53:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:03,627 INFO L93 Difference]: Finished difference Result 315 states and 315 transitions. [2018-07-23 13:53:03,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-07-23 13:53:03,627 INFO L78 Accepts]: Start accepts. Automaton has 157 states. Word has length 311 [2018-07-23 13:53:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:03,628 INFO L225 Difference]: With dead ends: 315 [2018-07-23 13:53:03,628 INFO L226 Difference]: Without dead ends: 314 [2018-07-23 13:53:03,629 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2018-07-23 13:53:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-07-23 13:53:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2018-07-23 13:53:03,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-07-23 13:53:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2018-07-23 13:53:03,633 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 311 [2018-07-23 13:53:03,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:03,633 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2018-07-23 13:53:03,633 INFO L472 AbstractCegarLoop]: Interpolant automaton has 157 states. [2018-07-23 13:53:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2018-07-23 13:53:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-07-23 13:53:03,634 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:03,634 INFO L357 BasicCegarLoop]: trace histogram [156, 155, 1, 1] [2018-07-23 13:53:03,634 INFO L414 AbstractCegarLoop]: === Iteration 156 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:03,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1520171350, now seen corresponding path program 155 times [2018-07-23 13:53:03,635 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 24180 backedges. 0 proven. 24180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,510 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:04,510 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2018-07-23 13:53:04,510 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,511 INFO L185 omatonBuilderFactory]: Interpolants [111923#false, 111922#true, 111925#(<= (+ main_offset 1044) main_length), 111924#(<= (+ main_offset 1048) main_length), 111927#(<= (+ main_offset 1036) main_length), 111926#(<= (+ main_offset 1040) main_length), 111929#(<= (+ main_offset 1028) main_length), 111928#(<= (+ main_offset 1032) main_length), 111931#(<= (+ main_offset 1020) main_length), 111930#(<= (+ main_offset 1024) main_length), 111933#(<= (+ main_offset 1012) main_length), 111932#(<= (+ main_offset 1016) main_length), 111935#(<= (+ main_offset 1004) main_length), 111934#(<= (+ main_offset 1008) main_length), 111937#(<= (+ main_offset 996) main_length), 111936#(<= (+ main_offset 1000) main_length), 111939#(<= (+ main_offset 988) main_length), 111938#(<= (+ main_offset 992) main_length), 111941#(<= (+ main_offset 980) main_length), 111940#(<= (+ main_offset 984) main_length), 111943#(<= (+ main_offset 972) main_length), 111942#(<= (+ main_offset 976) main_length), 111945#(<= (+ main_offset 964) main_length), 111944#(<= (+ main_offset 968) main_length), 111947#(<= (+ main_offset 956) main_length), 111946#(<= (+ main_offset 960) main_length), 111949#(<= (+ main_offset 948) main_length), 111948#(<= (+ main_offset 952) main_length), 111951#(<= (+ main_offset 940) main_length), 111950#(<= (+ main_offset 944) main_length), 111953#(<= (+ main_offset 932) main_length), 111952#(<= (+ main_offset 936) main_length), 111955#(<= (+ main_offset 924) main_length), 111954#(<= (+ main_offset 928) main_length), 111957#(<= (+ main_offset 916) main_length), 111956#(<= (+ main_offset 920) main_length), 111959#(<= (+ main_offset 908) main_length), 111958#(<= (+ main_offset 912) main_length), 111961#(<= (+ main_offset 900) main_length), 111960#(<= (+ main_offset 904) main_length), 111963#(<= (+ main_offset 892) main_length), 111962#(<= (+ main_offset 896) main_length), 111965#(<= (+ main_offset 884) main_length), 111964#(<= (+ main_offset 888) main_length), 111967#(<= (+ main_offset 876) main_length), 111966#(<= (+ main_offset 880) main_length), 111969#(<= (+ main_offset 868) main_length), 111968#(<= (+ main_offset 872) main_length), 111971#(<= (+ main_offset 860) main_length), 111970#(<= (+ main_offset 864) main_length), 111973#(<= (+ main_offset 852) main_length), 111972#(<= (+ main_offset 856) main_length), 111975#(<= (+ main_offset 844) main_length), 111974#(<= (+ main_offset 848) main_length), 111977#(<= (+ main_offset 836) main_length), 111976#(<= (+ main_offset 840) main_length), 111979#(<= (+ main_offset 828) main_length), 111978#(<= (+ main_offset 832) main_length), 111981#(<= (+ main_offset 820) main_length), 111980#(<= (+ main_offset 824) main_length), 111983#(<= (+ main_offset 812) main_length), 111982#(<= (+ main_offset 816) main_length), 111985#(<= (+ main_offset 804) main_length), 111984#(<= (+ main_offset 808) main_length), 111987#(<= (+ main_offset 796) main_length), 111986#(<= (+ main_offset 800) main_length), 111989#(<= (+ main_offset 788) main_length), 111988#(<= (+ main_offset 792) main_length), 111991#(<= (+ main_offset 780) main_length), 111990#(<= (+ main_offset 784) main_length), 111993#(<= (+ main_offset 772) main_length), 111992#(<= (+ main_offset 776) main_length), 111995#(<= (+ main_offset 764) main_length), 111994#(<= (+ main_offset 768) main_length), 111997#(<= (+ main_offset 756) main_length), 111996#(<= (+ main_offset 760) main_length), 111999#(<= (+ main_offset 748) main_length), 111998#(<= (+ main_offset 752) main_length), 112001#(<= (+ main_offset 740) main_length), 112000#(<= (+ main_offset 744) main_length), 112003#(<= (+ main_offset 732) main_length), 112002#(<= (+ main_offset 736) main_length), 112005#(<= (+ main_offset 724) main_length), 112004#(<= (+ main_offset 728) main_length), 112007#(<= (+ main_offset 716) main_length), 112006#(<= (+ main_offset 720) main_length), 112009#(<= (+ main_offset 708) main_length), 112008#(<= (+ main_offset 712) main_length), 112011#(<= (+ main_offset 700) main_length), 112010#(<= (+ main_offset 704) main_length), 112013#(<= (+ main_offset 692) main_length), 112012#(<= (+ main_offset 696) main_length), 112015#(<= (+ main_offset 684) main_length), 112014#(<= (+ main_offset 688) main_length), 112017#(<= (+ main_offset 676) main_length), 112016#(<= (+ main_offset 680) main_length), 112019#(<= (+ main_offset 668) main_length), 112018#(<= (+ main_offset 672) main_length), 112021#(<= (+ main_offset 660) main_length), 112020#(<= (+ main_offset 664) main_length), 112023#(<= (+ main_offset 652) main_length), 112022#(<= (+ main_offset 656) main_length), 112025#(<= (+ main_offset 644) main_length), 112024#(<= (+ main_offset 648) main_length), 112027#(<= (+ main_offset 636) main_length), 112026#(<= (+ main_offset 640) main_length), 112029#(<= (+ main_offset 628) main_length), 112028#(<= (+ main_offset 632) main_length), 112031#(<= (+ main_offset 620) main_length), 112030#(<= (+ main_offset 624) main_length), 112033#(<= (+ main_offset 612) main_length), 112032#(<= (+ main_offset 616) main_length), 112035#(<= (+ main_offset 604) main_length), 112034#(<= (+ main_offset 608) main_length), 112037#(<= (+ main_offset 596) main_length), 112036#(<= (+ main_offset 600) main_length), 112039#(<= (+ main_offset 588) main_length), 112038#(<= (+ main_offset 592) main_length), 112041#(<= (+ main_offset 580) main_length), 112040#(<= (+ main_offset 584) main_length), 112043#(<= (+ main_offset 572) main_length), 112042#(<= (+ main_offset 576) main_length), 112045#(<= (+ main_offset 564) main_length), 112044#(<= (+ main_offset 568) main_length), 112047#(<= (+ main_offset 556) main_length), 112046#(<= (+ main_offset 560) main_length), 112049#(<= (+ main_offset 548) main_length), 112048#(<= (+ main_offset 552) main_length), 112051#(<= (+ main_offset 540) main_length), 112050#(<= (+ main_offset 544) main_length), 112053#(<= (+ main_offset 532) main_length), 112052#(<= (+ main_offset 536) main_length), 112055#(<= (+ main_offset 524) main_length), 112054#(<= (+ main_offset 528) main_length), 112057#(<= (+ main_offset 516) main_length), 112056#(<= (+ main_offset 520) main_length), 112059#(<= (+ main_offset 508) main_length), 112058#(<= (+ main_offset 512) main_length), 112061#(<= (+ main_offset 500) main_length), 112060#(<= (+ main_offset 504) main_length), 112063#(<= (+ main_offset 492) main_length), 112062#(<= (+ main_offset 496) main_length), 112065#(<= (+ main_offset 484) main_length), 112064#(<= (+ main_offset 488) main_length), 112067#(<= (+ main_offset 476) main_length), 112066#(<= (+ main_offset 480) main_length), 112069#(<= (+ main_offset 468) main_length), 112068#(<= (+ main_offset 472) main_length), 112071#(<= (+ main_offset 460) main_length), 112070#(<= (+ main_offset 464) main_length), 112073#(<= (+ main_offset 452) main_length), 112072#(<= (+ main_offset 456) main_length), 112075#(<= (+ main_offset 444) main_length), 112074#(<= (+ main_offset 448) main_length), 112077#(<= (+ main_offset 436) main_length), 112076#(<= (+ main_offset 440) main_length), 112079#(<= (+ main_offset 428) main_length), 112078#(<= (+ main_offset 432) main_length)] [2018-07-23 13:53:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 24180 backedges. 0 proven. 24180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:04,512 INFO L450 AbstractCegarLoop]: Interpolant automaton has 158 states [2018-07-23 13:53:04,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 158 interpolants. [2018-07-23 13:53:04,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:53:04,515 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand 158 states. [2018-07-23 13:53:05,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:05,250 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2018-07-23 13:53:05,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2018-07-23 13:53:05,250 INFO L78 Accepts]: Start accepts. Automaton has 158 states. Word has length 313 [2018-07-23 13:53:05,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:05,251 INFO L225 Difference]: With dead ends: 317 [2018-07-23 13:53:05,251 INFO L226 Difference]: Without dead ends: 316 [2018-07-23 13:53:05,251 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2018-07-23 13:53:05,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2018-07-23 13:53:05,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2018-07-23 13:53:05,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-07-23 13:53:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2018-07-23 13:53:05,256 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 313 [2018-07-23 13:53:05,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:05,256 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2018-07-23 13:53:05,256 INFO L472 AbstractCegarLoop]: Interpolant automaton has 158 states. [2018-07-23 13:53:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2018-07-23 13:53:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-07-23 13:53:05,257 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:05,257 INFO L357 BasicCegarLoop]: trace histogram [157, 156, 1, 1] [2018-07-23 13:53:05,257 INFO L414 AbstractCegarLoop]: === Iteration 157 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:05,257 INFO L82 PathProgramCache]: Analyzing trace with hash 595787800, now seen corresponding path program 156 times [2018-07-23 13:53:05,257 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 24492 backedges. 0 proven. 24492 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:06,163 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:06,164 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2018-07-23 13:53:06,164 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:06,164 INFO L185 omatonBuilderFactory]: Interpolants [113409#(<= (+ main_offset 804) main_length), 113408#(<= (+ main_offset 808) main_length), 113411#(<= (+ main_offset 796) main_length), 113410#(<= (+ main_offset 800) main_length), 113413#(<= (+ main_offset 788) main_length), 113412#(<= (+ main_offset 792) main_length), 113415#(<= (+ main_offset 780) main_length), 113414#(<= (+ main_offset 784) main_length), 113417#(<= (+ main_offset 772) main_length), 113416#(<= (+ main_offset 776) main_length), 113419#(<= (+ main_offset 764) main_length), 113418#(<= (+ main_offset 768) main_length), 113421#(<= (+ main_offset 756) main_length), 113420#(<= (+ main_offset 760) main_length), 113423#(<= (+ main_offset 748) main_length), 113422#(<= (+ main_offset 752) main_length), 113425#(<= (+ main_offset 740) main_length), 113424#(<= (+ main_offset 744) main_length), 113427#(<= (+ main_offset 732) main_length), 113426#(<= (+ main_offset 736) main_length), 113429#(<= (+ main_offset 724) main_length), 113428#(<= (+ main_offset 728) main_length), 113431#(<= (+ main_offset 716) main_length), 113430#(<= (+ main_offset 720) main_length), 113433#(<= (+ main_offset 708) main_length), 113432#(<= (+ main_offset 712) main_length), 113435#(<= (+ main_offset 700) main_length), 113434#(<= (+ main_offset 704) main_length), 113437#(<= (+ main_offset 692) main_length), 113436#(<= (+ main_offset 696) main_length), 113439#(<= (+ main_offset 684) main_length), 113438#(<= (+ main_offset 688) main_length), 113441#(<= (+ main_offset 676) main_length), 113440#(<= (+ main_offset 680) main_length), 113443#(<= (+ main_offset 668) main_length), 113442#(<= (+ main_offset 672) main_length), 113445#(<= (+ main_offset 660) main_length), 113444#(<= (+ main_offset 664) main_length), 113447#(<= (+ main_offset 652) main_length), 113446#(<= (+ main_offset 656) main_length), 113449#(<= (+ main_offset 644) main_length), 113448#(<= (+ main_offset 648) main_length), 113451#(<= (+ main_offset 636) main_length), 113450#(<= (+ main_offset 640) main_length), 113453#(<= (+ main_offset 628) main_length), 113452#(<= (+ main_offset 632) main_length), 113455#(<= (+ main_offset 620) main_length), 113454#(<= (+ main_offset 624) main_length), 113457#(<= (+ main_offset 612) main_length), 113456#(<= (+ main_offset 616) main_length), 113459#(<= (+ main_offset 604) main_length), 113458#(<= (+ main_offset 608) main_length), 113461#(<= (+ main_offset 596) main_length), 113460#(<= (+ main_offset 600) main_length), 113463#(<= (+ main_offset 588) main_length), 113462#(<= (+ main_offset 592) main_length), 113465#(<= (+ main_offset 580) main_length), 113464#(<= (+ main_offset 584) main_length), 113467#(<= (+ main_offset 572) main_length), 113466#(<= (+ main_offset 576) main_length), 113469#(<= (+ main_offset 564) main_length), 113468#(<= (+ main_offset 568) main_length), 113471#(<= (+ main_offset 556) main_length), 113470#(<= (+ main_offset 560) main_length), 113473#(<= (+ main_offset 548) main_length), 113472#(<= (+ main_offset 552) main_length), 113475#(<= (+ main_offset 540) main_length), 113474#(<= (+ main_offset 544) main_length), 113477#(<= (+ main_offset 532) main_length), 113476#(<= (+ main_offset 536) main_length), 113479#(<= (+ main_offset 524) main_length), 113478#(<= (+ main_offset 528) main_length), 113481#(<= (+ main_offset 516) main_length), 113480#(<= (+ main_offset 520) main_length), 113483#(<= (+ main_offset 508) main_length), 113482#(<= (+ main_offset 512) main_length), 113485#(<= (+ main_offset 500) main_length), 113484#(<= (+ main_offset 504) main_length), 113487#(<= (+ main_offset 492) main_length), 113486#(<= (+ main_offset 496) main_length), 113489#(<= (+ main_offset 484) main_length), 113488#(<= (+ main_offset 488) main_length), 113491#(<= (+ main_offset 476) main_length), 113490#(<= (+ main_offset 480) main_length), 113493#(<= (+ main_offset 468) main_length), 113492#(<= (+ main_offset 472) main_length), 113495#(<= (+ main_offset 460) main_length), 113494#(<= (+ main_offset 464) main_length), 113497#(<= (+ main_offset 452) main_length), 113496#(<= (+ main_offset 456) main_length), 113499#(<= (+ main_offset 444) main_length), 113498#(<= (+ main_offset 448) main_length), 113501#(<= (+ main_offset 436) main_length), 113500#(<= (+ main_offset 440) main_length), 113503#(<= (+ main_offset 428) main_length), 113502#(<= (+ main_offset 432) main_length), 113504#(<= (+ main_offset 424) main_length), 113347#false, 113346#true, 113349#(<= (+ main_offset 1044) main_length), 113348#(<= (+ main_offset 1048) main_length), 113351#(<= (+ main_offset 1036) main_length), 113350#(<= (+ main_offset 1040) main_length), 113353#(<= (+ main_offset 1028) main_length), 113352#(<= (+ main_offset 1032) main_length), 113355#(<= (+ main_offset 1020) main_length), 113354#(<= (+ main_offset 1024) main_length), 113357#(<= (+ main_offset 1012) main_length), 113356#(<= (+ main_offset 1016) main_length), 113359#(<= (+ main_offset 1004) main_length), 113358#(<= (+ main_offset 1008) main_length), 113361#(<= (+ main_offset 996) main_length), 113360#(<= (+ main_offset 1000) main_length), 113363#(<= (+ main_offset 988) main_length), 113362#(<= (+ main_offset 992) main_length), 113365#(<= (+ main_offset 980) main_length), 113364#(<= (+ main_offset 984) main_length), 113367#(<= (+ main_offset 972) main_length), 113366#(<= (+ main_offset 976) main_length), 113369#(<= (+ main_offset 964) main_length), 113368#(<= (+ main_offset 968) main_length), 113371#(<= (+ main_offset 956) main_length), 113370#(<= (+ main_offset 960) main_length), 113373#(<= (+ main_offset 948) main_length), 113372#(<= (+ main_offset 952) main_length), 113375#(<= (+ main_offset 940) main_length), 113374#(<= (+ main_offset 944) main_length), 113377#(<= (+ main_offset 932) main_length), 113376#(<= (+ main_offset 936) main_length), 113379#(<= (+ main_offset 924) main_length), 113378#(<= (+ main_offset 928) main_length), 113381#(<= (+ main_offset 916) main_length), 113380#(<= (+ main_offset 920) main_length), 113383#(<= (+ main_offset 908) main_length), 113382#(<= (+ main_offset 912) main_length), 113385#(<= (+ main_offset 900) main_length), 113384#(<= (+ main_offset 904) main_length), 113387#(<= (+ main_offset 892) main_length), 113386#(<= (+ main_offset 896) main_length), 113389#(<= (+ main_offset 884) main_length), 113388#(<= (+ main_offset 888) main_length), 113391#(<= (+ main_offset 876) main_length), 113390#(<= (+ main_offset 880) main_length), 113393#(<= (+ main_offset 868) main_length), 113392#(<= (+ main_offset 872) main_length), 113395#(<= (+ main_offset 860) main_length), 113394#(<= (+ main_offset 864) main_length), 113397#(<= (+ main_offset 852) main_length), 113396#(<= (+ main_offset 856) main_length), 113399#(<= (+ main_offset 844) main_length), 113398#(<= (+ main_offset 848) main_length), 113401#(<= (+ main_offset 836) main_length), 113400#(<= (+ main_offset 840) main_length), 113403#(<= (+ main_offset 828) main_length), 113402#(<= (+ main_offset 832) main_length), 113405#(<= (+ main_offset 820) main_length), 113404#(<= (+ main_offset 824) main_length), 113407#(<= (+ main_offset 812) main_length), 113406#(<= (+ main_offset 816) main_length)] [2018-07-23 13:53:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 24492 backedges. 0 proven. 24492 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:06,165 INFO L450 AbstractCegarLoop]: Interpolant automaton has 159 states [2018-07-23 13:53:06,167 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2018-07-23 13:53:06,168 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:53:06,168 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand 159 states. [2018-07-23 13:53:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:06,543 INFO L93 Difference]: Finished difference Result 319 states and 319 transitions. [2018-07-23 13:53:06,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2018-07-23 13:53:06,543 INFO L78 Accepts]: Start accepts. Automaton has 159 states. Word has length 315 [2018-07-23 13:53:06,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:06,544 INFO L225 Difference]: With dead ends: 319 [2018-07-23 13:53:06,544 INFO L226 Difference]: Without dead ends: 318 [2018-07-23 13:53:06,545 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2018-07-23 13:53:06,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2018-07-23 13:53:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2018-07-23 13:53:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-07-23 13:53:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 318 transitions. [2018-07-23 13:53:06,549 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 318 transitions. Word has length 315 [2018-07-23 13:53:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:06,549 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 318 transitions. [2018-07-23 13:53:06,549 INFO L472 AbstractCegarLoop]: Interpolant automaton has 159 states. [2018-07-23 13:53:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 318 transitions. [2018-07-23 13:53:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-07-23 13:53:06,550 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:06,550 INFO L357 BasicCegarLoop]: trace histogram [158, 157, 1, 1] [2018-07-23 13:53:06,550 INFO L414 AbstractCegarLoop]: === Iteration 158 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1321426522, now seen corresponding path program 157 times [2018-07-23 13:53:06,550 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24806 backedges. 0 proven. 24806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,482 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:07,482 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2018-07-23 13:53:07,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,483 INFO L185 omatonBuilderFactory]: Interpolants [114779#true, 114781#(<= (+ main_offset 1048) main_length), 114780#false, 114783#(<= (+ main_offset 1040) main_length), 114782#(<= (+ main_offset 1044) main_length), 114785#(<= (+ main_offset 1032) main_length), 114784#(<= (+ main_offset 1036) main_length), 114787#(<= (+ main_offset 1024) main_length), 114786#(<= (+ main_offset 1028) main_length), 114789#(<= (+ main_offset 1016) main_length), 114788#(<= (+ main_offset 1020) main_length), 114791#(<= (+ main_offset 1008) main_length), 114790#(<= (+ main_offset 1012) main_length), 114793#(<= (+ main_offset 1000) main_length), 114792#(<= (+ main_offset 1004) main_length), 114795#(<= (+ main_offset 992) main_length), 114794#(<= (+ main_offset 996) main_length), 114797#(<= (+ main_offset 984) main_length), 114796#(<= (+ main_offset 988) main_length), 114799#(<= (+ main_offset 976) main_length), 114798#(<= (+ main_offset 980) main_length), 114801#(<= (+ main_offset 968) main_length), 114800#(<= (+ main_offset 972) main_length), 114803#(<= (+ main_offset 960) main_length), 114802#(<= (+ main_offset 964) main_length), 114805#(<= (+ main_offset 952) main_length), 114804#(<= (+ main_offset 956) main_length), 114807#(<= (+ main_offset 944) main_length), 114806#(<= (+ main_offset 948) main_length), 114809#(<= (+ main_offset 936) main_length), 114808#(<= (+ main_offset 940) main_length), 114811#(<= (+ main_offset 928) main_length), 114810#(<= (+ main_offset 932) main_length), 114813#(<= (+ main_offset 920) main_length), 114812#(<= (+ main_offset 924) main_length), 114815#(<= (+ main_offset 912) main_length), 114814#(<= (+ main_offset 916) main_length), 114817#(<= (+ main_offset 904) main_length), 114816#(<= (+ main_offset 908) main_length), 114819#(<= (+ main_offset 896) main_length), 114818#(<= (+ main_offset 900) main_length), 114821#(<= (+ main_offset 888) main_length), 114820#(<= (+ main_offset 892) main_length), 114823#(<= (+ main_offset 880) main_length), 114822#(<= (+ main_offset 884) main_length), 114825#(<= (+ main_offset 872) main_length), 114824#(<= (+ main_offset 876) main_length), 114827#(<= (+ main_offset 864) main_length), 114826#(<= (+ main_offset 868) main_length), 114829#(<= (+ main_offset 856) main_length), 114828#(<= (+ main_offset 860) main_length), 114831#(<= (+ main_offset 848) main_length), 114830#(<= (+ main_offset 852) main_length), 114833#(<= (+ main_offset 840) main_length), 114832#(<= (+ main_offset 844) main_length), 114835#(<= (+ main_offset 832) main_length), 114834#(<= (+ main_offset 836) main_length), 114837#(<= (+ main_offset 824) main_length), 114836#(<= (+ main_offset 828) main_length), 114839#(<= (+ main_offset 816) main_length), 114838#(<= (+ main_offset 820) main_length), 114841#(<= (+ main_offset 808) main_length), 114840#(<= (+ main_offset 812) main_length), 114843#(<= (+ main_offset 800) main_length), 114842#(<= (+ main_offset 804) main_length), 114845#(<= (+ main_offset 792) main_length), 114844#(<= (+ main_offset 796) main_length), 114847#(<= (+ main_offset 784) main_length), 114846#(<= (+ main_offset 788) main_length), 114849#(<= (+ main_offset 776) main_length), 114848#(<= (+ main_offset 780) main_length), 114851#(<= (+ main_offset 768) main_length), 114850#(<= (+ main_offset 772) main_length), 114853#(<= (+ main_offset 760) main_length), 114852#(<= (+ main_offset 764) main_length), 114855#(<= (+ main_offset 752) main_length), 114854#(<= (+ main_offset 756) main_length), 114857#(<= (+ main_offset 744) main_length), 114856#(<= (+ main_offset 748) main_length), 114859#(<= (+ main_offset 736) main_length), 114858#(<= (+ main_offset 740) main_length), 114861#(<= (+ main_offset 728) main_length), 114860#(<= (+ main_offset 732) main_length), 114863#(<= (+ main_offset 720) main_length), 114862#(<= (+ main_offset 724) main_length), 114865#(<= (+ main_offset 712) main_length), 114864#(<= (+ main_offset 716) main_length), 114867#(<= (+ main_offset 704) main_length), 114866#(<= (+ main_offset 708) main_length), 114869#(<= (+ main_offset 696) main_length), 114868#(<= (+ main_offset 700) main_length), 114871#(<= (+ main_offset 688) main_length), 114870#(<= (+ main_offset 692) main_length), 114873#(<= (+ main_offset 680) main_length), 114872#(<= (+ main_offset 684) main_length), 114875#(<= (+ main_offset 672) main_length), 114874#(<= (+ main_offset 676) main_length), 114877#(<= (+ main_offset 664) main_length), 114876#(<= (+ main_offset 668) main_length), 114879#(<= (+ main_offset 656) main_length), 114878#(<= (+ main_offset 660) main_length), 114881#(<= (+ main_offset 648) main_length), 114880#(<= (+ main_offset 652) main_length), 114883#(<= (+ main_offset 640) main_length), 114882#(<= (+ main_offset 644) main_length), 114885#(<= (+ main_offset 632) main_length), 114884#(<= (+ main_offset 636) main_length), 114887#(<= (+ main_offset 624) main_length), 114886#(<= (+ main_offset 628) main_length), 114889#(<= (+ main_offset 616) main_length), 114888#(<= (+ main_offset 620) main_length), 114891#(<= (+ main_offset 608) main_length), 114890#(<= (+ main_offset 612) main_length), 114893#(<= (+ main_offset 600) main_length), 114892#(<= (+ main_offset 604) main_length), 114895#(<= (+ main_offset 592) main_length), 114894#(<= (+ main_offset 596) main_length), 114897#(<= (+ main_offset 584) main_length), 114896#(<= (+ main_offset 588) main_length), 114899#(<= (+ main_offset 576) main_length), 114898#(<= (+ main_offset 580) main_length), 114901#(<= (+ main_offset 568) main_length), 114900#(<= (+ main_offset 572) main_length), 114903#(<= (+ main_offset 560) main_length), 114902#(<= (+ main_offset 564) main_length), 114905#(<= (+ main_offset 552) main_length), 114904#(<= (+ main_offset 556) main_length), 114907#(<= (+ main_offset 544) main_length), 114906#(<= (+ main_offset 548) main_length), 114909#(<= (+ main_offset 536) main_length), 114908#(<= (+ main_offset 540) main_length), 114911#(<= (+ main_offset 528) main_length), 114910#(<= (+ main_offset 532) main_length), 114913#(<= (+ main_offset 520) main_length), 114912#(<= (+ main_offset 524) main_length), 114915#(<= (+ main_offset 512) main_length), 114914#(<= (+ main_offset 516) main_length), 114917#(<= (+ main_offset 504) main_length), 114916#(<= (+ main_offset 508) main_length), 114919#(<= (+ main_offset 496) main_length), 114918#(<= (+ main_offset 500) main_length), 114921#(<= (+ main_offset 488) main_length), 114920#(<= (+ main_offset 492) main_length), 114923#(<= (+ main_offset 480) main_length), 114922#(<= (+ main_offset 484) main_length), 114925#(<= (+ main_offset 472) main_length), 114924#(<= (+ main_offset 476) main_length), 114927#(<= (+ main_offset 464) main_length), 114926#(<= (+ main_offset 468) main_length), 114929#(<= (+ main_offset 456) main_length), 114928#(<= (+ main_offset 460) main_length), 114931#(<= (+ main_offset 448) main_length), 114930#(<= (+ main_offset 452) main_length), 114933#(<= (+ main_offset 440) main_length), 114932#(<= (+ main_offset 444) main_length), 114935#(<= (+ main_offset 432) main_length), 114934#(<= (+ main_offset 436) main_length), 114937#(<= (+ main_offset 424) main_length), 114936#(<= (+ main_offset 428) main_length), 114938#(<= (+ main_offset 420) main_length)] [2018-07-23 13:53:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 24806 backedges. 0 proven. 24806 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:07,484 INFO L450 AbstractCegarLoop]: Interpolant automaton has 160 states [2018-07-23 13:53:07,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 160 interpolants. [2018-07-23 13:53:07,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:53:07,486 INFO L87 Difference]: Start difference. First operand 318 states and 318 transitions. Second operand 160 states. [2018-07-23 13:53:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:08,252 INFO L93 Difference]: Finished difference Result 321 states and 321 transitions. [2018-07-23 13:53:08,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2018-07-23 13:53:08,252 INFO L78 Accepts]: Start accepts. Automaton has 160 states. Word has length 317 [2018-07-23 13:53:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:08,253 INFO L225 Difference]: With dead ends: 321 [2018-07-23 13:53:08,253 INFO L226 Difference]: Without dead ends: 320 [2018-07-23 13:53:08,254 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2018-07-23 13:53:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-07-23 13:53:08,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2018-07-23 13:53:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-07-23 13:53:08,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 320 transitions. [2018-07-23 13:53:08,258 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 320 transitions. Word has length 317 [2018-07-23 13:53:08,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:08,259 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 320 transitions. [2018-07-23 13:53:08,259 INFO L472 AbstractCegarLoop]: Interpolant automaton has 160 states. [2018-07-23 13:53:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 320 transitions. [2018-07-23 13:53:08,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-07-23 13:53:08,260 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:08,260 INFO L357 BasicCegarLoop]: trace histogram [159, 158, 1, 1] [2018-07-23 13:53:08,260 INFO L414 AbstractCegarLoop]: === Iteration 159 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:08,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1419430884, now seen corresponding path program 158 times [2018-07-23 13:53:08,260 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 25122 backedges. 0 proven. 25122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:09,236 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:09,236 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2018-07-23 13:53:09,236 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:09,237 INFO L185 omatonBuilderFactory]: Interpolants [116225#(<= (+ main_offset 1040) main_length), 116224#(<= (+ main_offset 1044) main_length), 116227#(<= (+ main_offset 1032) main_length), 116226#(<= (+ main_offset 1036) main_length), 116229#(<= (+ main_offset 1024) main_length), 116228#(<= (+ main_offset 1028) main_length), 116231#(<= (+ main_offset 1016) main_length), 116230#(<= (+ main_offset 1020) main_length), 116233#(<= (+ main_offset 1008) main_length), 116232#(<= (+ main_offset 1012) main_length), 116235#(<= (+ main_offset 1000) main_length), 116234#(<= (+ main_offset 1004) main_length), 116237#(<= (+ main_offset 992) main_length), 116236#(<= (+ main_offset 996) main_length), 116239#(<= (+ main_offset 984) main_length), 116238#(<= (+ main_offset 988) main_length), 116241#(<= (+ main_offset 976) main_length), 116240#(<= (+ main_offset 980) main_length), 116243#(<= (+ main_offset 968) main_length), 116242#(<= (+ main_offset 972) main_length), 116245#(<= (+ main_offset 960) main_length), 116244#(<= (+ main_offset 964) main_length), 116247#(<= (+ main_offset 952) main_length), 116246#(<= (+ main_offset 956) main_length), 116249#(<= (+ main_offset 944) main_length), 116248#(<= (+ main_offset 948) main_length), 116251#(<= (+ main_offset 936) main_length), 116250#(<= (+ main_offset 940) main_length), 116253#(<= (+ main_offset 928) main_length), 116252#(<= (+ main_offset 932) main_length), 116255#(<= (+ main_offset 920) main_length), 116254#(<= (+ main_offset 924) main_length), 116257#(<= (+ main_offset 912) main_length), 116256#(<= (+ main_offset 916) main_length), 116259#(<= (+ main_offset 904) main_length), 116258#(<= (+ main_offset 908) main_length), 116261#(<= (+ main_offset 896) main_length), 116260#(<= (+ main_offset 900) main_length), 116263#(<= (+ main_offset 888) main_length), 116262#(<= (+ main_offset 892) main_length), 116265#(<= (+ main_offset 880) main_length), 116264#(<= (+ main_offset 884) main_length), 116267#(<= (+ main_offset 872) main_length), 116266#(<= (+ main_offset 876) main_length), 116269#(<= (+ main_offset 864) main_length), 116268#(<= (+ main_offset 868) main_length), 116271#(<= (+ main_offset 856) main_length), 116270#(<= (+ main_offset 860) main_length), 116273#(<= (+ main_offset 848) main_length), 116272#(<= (+ main_offset 852) main_length), 116275#(<= (+ main_offset 840) main_length), 116274#(<= (+ main_offset 844) main_length), 116277#(<= (+ main_offset 832) main_length), 116276#(<= (+ main_offset 836) main_length), 116279#(<= (+ main_offset 824) main_length), 116278#(<= (+ main_offset 828) main_length), 116281#(<= (+ main_offset 816) main_length), 116280#(<= (+ main_offset 820) main_length), 116283#(<= (+ main_offset 808) main_length), 116282#(<= (+ main_offset 812) main_length), 116285#(<= (+ main_offset 800) main_length), 116284#(<= (+ main_offset 804) main_length), 116287#(<= (+ main_offset 792) main_length), 116286#(<= (+ main_offset 796) main_length), 116289#(<= (+ main_offset 784) main_length), 116288#(<= (+ main_offset 788) main_length), 116291#(<= (+ main_offset 776) main_length), 116290#(<= (+ main_offset 780) main_length), 116293#(<= (+ main_offset 768) main_length), 116292#(<= (+ main_offset 772) main_length), 116295#(<= (+ main_offset 760) main_length), 116294#(<= (+ main_offset 764) main_length), 116297#(<= (+ main_offset 752) main_length), 116296#(<= (+ main_offset 756) main_length), 116299#(<= (+ main_offset 744) main_length), 116298#(<= (+ main_offset 748) main_length), 116301#(<= (+ main_offset 736) main_length), 116300#(<= (+ main_offset 740) main_length), 116303#(<= (+ main_offset 728) main_length), 116302#(<= (+ main_offset 732) main_length), 116305#(<= (+ main_offset 720) main_length), 116304#(<= (+ main_offset 724) main_length), 116307#(<= (+ main_offset 712) main_length), 116306#(<= (+ main_offset 716) main_length), 116309#(<= (+ main_offset 704) main_length), 116308#(<= (+ main_offset 708) main_length), 116311#(<= (+ main_offset 696) main_length), 116310#(<= (+ main_offset 700) main_length), 116313#(<= (+ main_offset 688) main_length), 116312#(<= (+ main_offset 692) main_length), 116315#(<= (+ main_offset 680) main_length), 116314#(<= (+ main_offset 684) main_length), 116317#(<= (+ main_offset 672) main_length), 116316#(<= (+ main_offset 676) main_length), 116319#(<= (+ main_offset 664) main_length), 116318#(<= (+ main_offset 668) main_length), 116321#(<= (+ main_offset 656) main_length), 116320#(<= (+ main_offset 660) main_length), 116323#(<= (+ main_offset 648) main_length), 116322#(<= (+ main_offset 652) main_length), 116325#(<= (+ main_offset 640) main_length), 116324#(<= (+ main_offset 644) main_length), 116327#(<= (+ main_offset 632) main_length), 116326#(<= (+ main_offset 636) main_length), 116329#(<= (+ main_offset 624) main_length), 116328#(<= (+ main_offset 628) main_length), 116331#(<= (+ main_offset 616) main_length), 116330#(<= (+ main_offset 620) main_length), 116333#(<= (+ main_offset 608) main_length), 116332#(<= (+ main_offset 612) main_length), 116335#(<= (+ main_offset 600) main_length), 116334#(<= (+ main_offset 604) main_length), 116337#(<= (+ main_offset 592) main_length), 116336#(<= (+ main_offset 596) main_length), 116339#(<= (+ main_offset 584) main_length), 116338#(<= (+ main_offset 588) main_length), 116341#(<= (+ main_offset 576) main_length), 116340#(<= (+ main_offset 580) main_length), 116343#(<= (+ main_offset 568) main_length), 116342#(<= (+ main_offset 572) main_length), 116345#(<= (+ main_offset 560) main_length), 116344#(<= (+ main_offset 564) main_length), 116347#(<= (+ main_offset 552) main_length), 116346#(<= (+ main_offset 556) main_length), 116349#(<= (+ main_offset 544) main_length), 116348#(<= (+ main_offset 548) main_length), 116351#(<= (+ main_offset 536) main_length), 116350#(<= (+ main_offset 540) main_length), 116353#(<= (+ main_offset 528) main_length), 116352#(<= (+ main_offset 532) main_length), 116355#(<= (+ main_offset 520) main_length), 116354#(<= (+ main_offset 524) main_length), 116357#(<= (+ main_offset 512) main_length), 116356#(<= (+ main_offset 516) main_length), 116359#(<= (+ main_offset 504) main_length), 116358#(<= (+ main_offset 508) main_length), 116361#(<= (+ main_offset 496) main_length), 116360#(<= (+ main_offset 500) main_length), 116363#(<= (+ main_offset 488) main_length), 116362#(<= (+ main_offset 492) main_length), 116365#(<= (+ main_offset 480) main_length), 116364#(<= (+ main_offset 484) main_length), 116367#(<= (+ main_offset 472) main_length), 116366#(<= (+ main_offset 476) main_length), 116369#(<= (+ main_offset 464) main_length), 116368#(<= (+ main_offset 468) main_length), 116371#(<= (+ main_offset 456) main_length), 116370#(<= (+ main_offset 460) main_length), 116373#(<= (+ main_offset 448) main_length), 116372#(<= (+ main_offset 452) main_length), 116375#(<= (+ main_offset 440) main_length), 116374#(<= (+ main_offset 444) main_length), 116377#(<= (+ main_offset 432) main_length), 116376#(<= (+ main_offset 436) main_length), 116379#(<= (+ main_offset 424) main_length), 116378#(<= (+ main_offset 428) main_length), 116381#(<= (+ main_offset 416) main_length), 116380#(<= (+ main_offset 420) main_length), 116221#true, 116223#(<= (+ main_offset 1048) main_length), 116222#false] [2018-07-23 13:53:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 25122 backedges. 0 proven. 25122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:09,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 161 states [2018-07-23 13:53:09,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 161 interpolants. [2018-07-23 13:53:09,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:53:09,239 INFO L87 Difference]: Start difference. First operand 320 states and 320 transitions. Second operand 161 states. [2018-07-23 13:53:10,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:10,067 INFO L93 Difference]: Finished difference Result 323 states and 323 transitions. [2018-07-23 13:53:10,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2018-07-23 13:53:10,067 INFO L78 Accepts]: Start accepts. Automaton has 161 states. Word has length 319 [2018-07-23 13:53:10,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:10,068 INFO L225 Difference]: With dead ends: 323 [2018-07-23 13:53:10,068 INFO L226 Difference]: Without dead ends: 322 [2018-07-23 13:53:10,069 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2018-07-23 13:53:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-07-23 13:53:10,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2018-07-23 13:53:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2018-07-23 13:53:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2018-07-23 13:53:10,075 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 319 [2018-07-23 13:53:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:10,075 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2018-07-23 13:53:10,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 161 states. [2018-07-23 13:53:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2018-07-23 13:53:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-07-23 13:53:10,077 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:10,077 INFO L357 BasicCegarLoop]: trace histogram [160, 159, 1, 1] [2018-07-23 13:53:10,077 INFO L414 AbstractCegarLoop]: === Iteration 160 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:10,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1726521694, now seen corresponding path program 159 times [2018-07-23 13:53:10,077 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 25440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,980 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:10,980 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2018-07-23 13:53:10,980 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:10,981 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 13:53:10,981 INFO L185 omatonBuilderFactory]: Interpolants [117761#(<= (+ main_offset 700) main_length), 117760#(<= (+ main_offset 704) main_length), 117763#(<= (+ main_offset 692) main_length), 117762#(<= (+ main_offset 696) main_length), 117765#(<= (+ main_offset 684) main_length), 117764#(<= (+ main_offset 688) main_length), 117767#(<= (+ main_offset 676) main_length), 117766#(<= (+ main_offset 680) main_length), 117769#(<= (+ main_offset 668) main_length), 117768#(<= (+ main_offset 672) main_length), 117771#(<= (+ main_offset 660) main_length), 117770#(<= (+ main_offset 664) main_length), 117773#(<= (+ main_offset 652) main_length), 117772#(<= (+ main_offset 656) main_length), 117775#(<= (+ main_offset 644) main_length), 117774#(<= (+ main_offset 648) main_length), 117777#(<= (+ main_offset 636) main_length), 117776#(<= (+ main_offset 640) main_length), 117779#(<= (+ main_offset 628) main_length), 117778#(<= (+ main_offset 632) main_length), 117781#(<= (+ main_offset 620) main_length), 117780#(<= (+ main_offset 624) main_length), 117783#(<= (+ main_offset 612) main_length), 117782#(<= (+ main_offset 616) main_length), 117785#(<= (+ main_offset 604) main_length), 117784#(<= (+ main_offset 608) main_length), 117787#(<= (+ main_offset 596) main_length), 117786#(<= (+ main_offset 600) main_length), 117789#(<= (+ main_offset 588) main_length), 117788#(<= (+ main_offset 592) main_length), 117791#(<= (+ main_offset 580) main_length), 117790#(<= (+ main_offset 584) main_length), 117793#(<= (+ main_offset 572) main_length), 117792#(<= (+ main_offset 576) main_length), 117795#(<= (+ main_offset 564) main_length), 117794#(<= (+ main_offset 568) main_length), 117797#(<= (+ main_offset 556) main_length), 117796#(<= (+ main_offset 560) main_length), 117799#(<= (+ main_offset 548) main_length), 117798#(<= (+ main_offset 552) main_length), 117801#(<= (+ main_offset 540) main_length), 117800#(<= (+ main_offset 544) main_length), 117803#(<= (+ main_offset 532) main_length), 117802#(<= (+ main_offset 536) main_length), 117805#(<= (+ main_offset 524) main_length), 117804#(<= (+ main_offset 528) main_length), 117807#(<= (+ main_offset 516) main_length), 117806#(<= (+ main_offset 520) main_length), 117809#(<= (+ main_offset 508) main_length), 117808#(<= (+ main_offset 512) main_length), 117811#(<= (+ main_offset 500) main_length), 117810#(<= (+ main_offset 504) main_length), 117813#(<= (+ main_offset 492) main_length), 117812#(<= (+ main_offset 496) main_length), 117815#(<= (+ main_offset 484) main_length), 117814#(<= (+ main_offset 488) main_length), 117817#(<= (+ main_offset 476) main_length), 117816#(<= (+ main_offset 480) main_length), 117819#(<= (+ main_offset 468) main_length), 117818#(<= (+ main_offset 472) main_length), 117821#(<= (+ main_offset 460) main_length), 117820#(<= (+ main_offset 464) main_length), 117823#(<= (+ main_offset 452) main_length), 117822#(<= (+ main_offset 456) main_length), 117825#(<= (+ main_offset 444) main_length), 117824#(<= (+ main_offset 448) main_length), 117827#(<= (+ main_offset 436) main_length), 117826#(<= (+ main_offset 440) main_length), 117829#(<= (+ main_offset 428) main_length), 117828#(<= (+ main_offset 432) main_length), 117831#(<= (+ main_offset 420) main_length), 117830#(<= (+ main_offset 424) main_length), 117833#(<= (+ main_offset 412) main_length), 117832#(<= (+ main_offset 416) main_length), 117673#false, 117672#true, 117675#(<= (+ main_offset 1044) main_length), 117674#(<= (+ main_offset 1048) main_length), 117677#(<= (+ main_offset 1036) main_length), 117676#(<= (+ main_offset 1040) main_length), 117679#(<= (+ main_offset 1028) main_length), 117678#(<= (+ main_offset 1032) main_length), 117681#(<= (+ main_offset 1020) main_length), 117680#(<= (+ main_offset 1024) main_length), 117683#(<= (+ main_offset 1012) main_length), 117682#(<= (+ main_offset 1016) main_length), 117685#(<= (+ main_offset 1004) main_length), 117684#(<= (+ main_offset 1008) main_length), 117687#(<= (+ main_offset 996) main_length), 117686#(<= (+ main_offset 1000) main_length), 117689#(<= (+ main_offset 988) main_length), 117688#(<= (+ main_offset 992) main_length), 117691#(<= (+ main_offset 980) main_length), 117690#(<= (+ main_offset 984) main_length), 117693#(<= (+ main_offset 972) main_length), 117692#(<= (+ main_offset 976) main_length), 117695#(<= (+ main_offset 964) main_length), 117694#(<= (+ main_offset 968) main_length), 117697#(<= (+ main_offset 956) main_length), 117696#(<= (+ main_offset 960) main_length), 117699#(<= (+ main_offset 948) main_length), 117698#(<= (+ main_offset 952) main_length), 117701#(<= (+ main_offset 940) main_length), 117700#(<= (+ main_offset 944) main_length), 117703#(<= (+ main_offset 932) main_length), 117702#(<= (+ main_offset 936) main_length), 117705#(<= (+ main_offset 924) main_length), 117704#(<= (+ main_offset 928) main_length), 117707#(<= (+ main_offset 916) main_length), 117706#(<= (+ main_offset 920) main_length), 117709#(<= (+ main_offset 908) main_length), 117708#(<= (+ main_offset 912) main_length), 117711#(<= (+ main_offset 900) main_length), 117710#(<= (+ main_offset 904) main_length), 117713#(<= (+ main_offset 892) main_length), 117712#(<= (+ main_offset 896) main_length), 117715#(<= (+ main_offset 884) main_length), 117714#(<= (+ main_offset 888) main_length), 117717#(<= (+ main_offset 876) main_length), 117716#(<= (+ main_offset 880) main_length), 117719#(<= (+ main_offset 868) main_length), 117718#(<= (+ main_offset 872) main_length), 117721#(<= (+ main_offset 860) main_length), 117720#(<= (+ main_offset 864) main_length), 117723#(<= (+ main_offset 852) main_length), 117722#(<= (+ main_offset 856) main_length), 117725#(<= (+ main_offset 844) main_length), 117724#(<= (+ main_offset 848) main_length), 117727#(<= (+ main_offset 836) main_length), 117726#(<= (+ main_offset 840) main_length), 117729#(<= (+ main_offset 828) main_length), 117728#(<= (+ main_offset 832) main_length), 117731#(<= (+ main_offset 820) main_length), 117730#(<= (+ main_offset 824) main_length), 117733#(<= (+ main_offset 812) main_length), 117732#(<= (+ main_offset 816) main_length), 117735#(<= (+ main_offset 804) main_length), 117734#(<= (+ main_offset 808) main_length), 117737#(<= (+ main_offset 796) main_length), 117736#(<= (+ main_offset 800) main_length), 117739#(<= (+ main_offset 788) main_length), 117738#(<= (+ main_offset 792) main_length), 117741#(<= (+ main_offset 780) main_length), 117740#(<= (+ main_offset 784) main_length), 117743#(<= (+ main_offset 772) main_length), 117742#(<= (+ main_offset 776) main_length), 117745#(<= (+ main_offset 764) main_length), 117744#(<= (+ main_offset 768) main_length), 117747#(<= (+ main_offset 756) main_length), 117746#(<= (+ main_offset 760) main_length), 117749#(<= (+ main_offset 748) main_length), 117748#(<= (+ main_offset 752) main_length), 117751#(<= (+ main_offset 740) main_length), 117750#(<= (+ main_offset 744) main_length), 117753#(<= (+ main_offset 732) main_length), 117752#(<= (+ main_offset 736) main_length), 117755#(<= (+ main_offset 724) main_length), 117754#(<= (+ main_offset 728) main_length), 117757#(<= (+ main_offset 716) main_length), 117756#(<= (+ main_offset 720) main_length), 117759#(<= (+ main_offset 708) main_length), 117758#(<= (+ main_offset 712) main_length)] [2018-07-23 13:53:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 25440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:10,982 INFO L450 AbstractCegarLoop]: Interpolant automaton has 162 states [2018-07-23 13:53:10,984 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2018-07-23 13:53:10,984 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:53:10,985 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand 162 states. [2018-07-23 13:53:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:11,248 INFO L93 Difference]: Finished difference Result 325 states and 325 transitions. [2018-07-23 13:53:11,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2018-07-23 13:53:11,248 INFO L78 Accepts]: Start accepts. Automaton has 162 states. Word has length 321 [2018-07-23 13:53:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:11,249 INFO L225 Difference]: With dead ends: 325 [2018-07-23 13:53:11,249 INFO L226 Difference]: Without dead ends: 324 [2018-07-23 13:53:11,250 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2018-07-23 13:53:11,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2018-07-23 13:53:11,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2018-07-23 13:53:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-07-23 13:53:11,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 324 transitions. [2018-07-23 13:53:11,254 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 324 transitions. Word has length 321 [2018-07-23 13:53:11,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:11,254 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 324 transitions. [2018-07-23 13:53:11,254 INFO L472 AbstractCegarLoop]: Interpolant automaton has 162 states. [2018-07-23 13:53:11,254 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 324 transitions. [2018-07-23 13:53:11,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2018-07-23 13:53:11,255 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:11,255 INFO L357 BasicCegarLoop]: trace histogram [161, 160, 1, 1] [2018-07-23 13:53:11,255 INFO L414 AbstractCegarLoop]: === Iteration 161 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:11,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1329972768, now seen corresponding path program 160 times [2018-07-23 13:53:11,255 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:12,191 INFO L134 CoverageAnalysis]: Checked inductivity of 25760 backedges. 0 proven. 25760 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:12,192 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:12,192 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2018-07-23 13:53:12,192 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:12,193 INFO L185 omatonBuilderFactory]: Interpolants [119133#false, 119132#true, 119135#(<= (+ main_offset 1044) main_length), 119134#(<= (+ main_offset 1048) main_length), 119137#(<= (+ main_offset 1036) main_length), 119136#(<= (+ main_offset 1040) main_length), 119139#(<= (+ main_offset 1028) main_length), 119138#(<= (+ main_offset 1032) main_length), 119141#(<= (+ main_offset 1020) main_length), 119140#(<= (+ main_offset 1024) main_length), 119143#(<= (+ main_offset 1012) main_length), 119142#(<= (+ main_offset 1016) main_length), 119145#(<= (+ main_offset 1004) main_length), 119144#(<= (+ main_offset 1008) main_length), 119147#(<= (+ main_offset 996) main_length), 119146#(<= (+ main_offset 1000) main_length), 119149#(<= (+ main_offset 988) main_length), 119148#(<= (+ main_offset 992) main_length), 119151#(<= (+ main_offset 980) main_length), 119150#(<= (+ main_offset 984) main_length), 119153#(<= (+ main_offset 972) main_length), 119152#(<= (+ main_offset 976) main_length), 119155#(<= (+ main_offset 964) main_length), 119154#(<= (+ main_offset 968) main_length), 119157#(<= (+ main_offset 956) main_length), 119156#(<= (+ main_offset 960) main_length), 119159#(<= (+ main_offset 948) main_length), 119158#(<= (+ main_offset 952) main_length), 119161#(<= (+ main_offset 940) main_length), 119160#(<= (+ main_offset 944) main_length), 119163#(<= (+ main_offset 932) main_length), 119162#(<= (+ main_offset 936) main_length), 119165#(<= (+ main_offset 924) main_length), 119164#(<= (+ main_offset 928) main_length), 119167#(<= (+ main_offset 916) main_length), 119166#(<= (+ main_offset 920) main_length), 119169#(<= (+ main_offset 908) main_length), 119168#(<= (+ main_offset 912) main_length), 119171#(<= (+ main_offset 900) main_length), 119170#(<= (+ main_offset 904) main_length), 119173#(<= (+ main_offset 892) main_length), 119172#(<= (+ main_offset 896) main_length), 119175#(<= (+ main_offset 884) main_length), 119174#(<= (+ main_offset 888) main_length), 119177#(<= (+ main_offset 876) main_length), 119176#(<= (+ main_offset 880) main_length), 119179#(<= (+ main_offset 868) main_length), 119178#(<= (+ main_offset 872) main_length), 119181#(<= (+ main_offset 860) main_length), 119180#(<= (+ main_offset 864) main_length), 119183#(<= (+ main_offset 852) main_length), 119182#(<= (+ main_offset 856) main_length), 119185#(<= (+ main_offset 844) main_length), 119184#(<= (+ main_offset 848) main_length), 119187#(<= (+ main_offset 836) main_length), 119186#(<= (+ main_offset 840) main_length), 119189#(<= (+ main_offset 828) main_length), 119188#(<= (+ main_offset 832) main_length), 119191#(<= (+ main_offset 820) main_length), 119190#(<= (+ main_offset 824) main_length), 119193#(<= (+ main_offset 812) main_length), 119192#(<= (+ main_offset 816) main_length), 119195#(<= (+ main_offset 804) main_length), 119194#(<= (+ main_offset 808) main_length), 119197#(<= (+ main_offset 796) main_length), 119196#(<= (+ main_offset 800) main_length), 119199#(<= (+ main_offset 788) main_length), 119198#(<= (+ main_offset 792) main_length), 119201#(<= (+ main_offset 780) main_length), 119200#(<= (+ main_offset 784) main_length), 119203#(<= (+ main_offset 772) main_length), 119202#(<= (+ main_offset 776) main_length), 119205#(<= (+ main_offset 764) main_length), 119204#(<= (+ main_offset 768) main_length), 119207#(<= (+ main_offset 756) main_length), 119206#(<= (+ main_offset 760) main_length), 119209#(<= (+ main_offset 748) main_length), 119208#(<= (+ main_offset 752) main_length), 119211#(<= (+ main_offset 740) main_length), 119210#(<= (+ main_offset 744) main_length), 119213#(<= (+ main_offset 732) main_length), 119212#(<= (+ main_offset 736) main_length), 119215#(<= (+ main_offset 724) main_length), 119214#(<= (+ main_offset 728) main_length), 119217#(<= (+ main_offset 716) main_length), 119216#(<= (+ main_offset 720) main_length), 119219#(<= (+ main_offset 708) main_length), 119218#(<= (+ main_offset 712) main_length), 119221#(<= (+ main_offset 700) main_length), 119220#(<= (+ main_offset 704) main_length), 119223#(<= (+ main_offset 692) main_length), 119222#(<= (+ main_offset 696) main_length), 119225#(<= (+ main_offset 684) main_length), 119224#(<= (+ main_offset 688) main_length), 119227#(<= (+ main_offset 676) main_length), 119226#(<= (+ main_offset 680) main_length), 119229#(<= (+ main_offset 668) main_length), 119228#(<= (+ main_offset 672) main_length), 119231#(<= (+ main_offset 660) main_length), 119230#(<= (+ main_offset 664) main_length), 119233#(<= (+ main_offset 652) main_length), 119232#(<= (+ main_offset 656) main_length), 119235#(<= (+ main_offset 644) main_length), 119234#(<= (+ main_offset 648) main_length), 119237#(<= (+ main_offset 636) main_length), 119236#(<= (+ main_offset 640) main_length), 119239#(<= (+ main_offset 628) main_length), 119238#(<= (+ main_offset 632) main_length), 119241#(<= (+ main_offset 620) main_length), 119240#(<= (+ main_offset 624) main_length), 119243#(<= (+ main_offset 612) main_length), 119242#(<= (+ main_offset 616) main_length), 119245#(<= (+ main_offset 604) main_length), 119244#(<= (+ main_offset 608) main_length), 119247#(<= (+ main_offset 596) main_length), 119246#(<= (+ main_offset 600) main_length), 119249#(<= (+ main_offset 588) main_length), 119248#(<= (+ main_offset 592) main_length), 119251#(<= (+ main_offset 580) main_length), 119250#(<= (+ main_offset 584) main_length), 119253#(<= (+ main_offset 572) main_length), 119252#(<= (+ main_offset 576) main_length), 119255#(<= (+ main_offset 564) main_length), 119254#(<= (+ main_offset 568) main_length), 119257#(<= (+ main_offset 556) main_length), 119256#(<= (+ main_offset 560) main_length), 119259#(<= (+ main_offset 548) main_length), 119258#(<= (+ main_offset 552) main_length), 119261#(<= (+ main_offset 540) main_length), 119260#(<= (+ main_offset 544) main_length), 119263#(<= (+ main_offset 532) main_length), 119262#(<= (+ main_offset 536) main_length), 119265#(<= (+ main_offset 524) main_length), 119264#(<= (+ main_offset 528) main_length), 119267#(<= (+ main_offset 516) main_length), 119266#(<= (+ main_offset 520) main_length), 119269#(<= (+ main_offset 508) main_length), 119268#(<= (+ main_offset 512) main_length), 119271#(<= (+ main_offset 500) main_length), 119270#(<= (+ main_offset 504) main_length), 119273#(<= (+ main_offset 492) main_length), 119272#(<= (+ main_offset 496) main_length), 119275#(<= (+ main_offset 484) main_length), 119274#(<= (+ main_offset 488) main_length), 119277#(<= (+ main_offset 476) main_length), 119276#(<= (+ main_offset 480) main_length), 119279#(<= (+ main_offset 468) main_length), 119278#(<= (+ main_offset 472) main_length), 119281#(<= (+ main_offset 460) main_length), 119280#(<= (+ main_offset 464) main_length), 119283#(<= (+ main_offset 452) main_length), 119282#(<= (+ main_offset 456) main_length), 119285#(<= (+ main_offset 444) main_length), 119284#(<= (+ main_offset 448) main_length), 119287#(<= (+ main_offset 436) main_length), 119286#(<= (+ main_offset 440) main_length), 119289#(<= (+ main_offset 428) main_length), 119288#(<= (+ main_offset 432) main_length), 119291#(<= (+ main_offset 420) main_length), 119290#(<= (+ main_offset 424) main_length), 119293#(<= (+ main_offset 412) main_length), 119292#(<= (+ main_offset 416) main_length), 119294#(<= (+ main_offset 408) main_length)] [2018-07-23 13:53:12,194 INFO L134 CoverageAnalysis]: Checked inductivity of 25760 backedges. 0 proven. 25760 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:12,194 INFO L450 AbstractCegarLoop]: Interpolant automaton has 163 states [2018-07-23 13:53:12,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2018-07-23 13:53:12,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:53:12,197 INFO L87 Difference]: Start difference. First operand 324 states and 324 transitions. Second operand 163 states. [2018-07-23 13:53:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:13,032 INFO L93 Difference]: Finished difference Result 327 states and 327 transitions. [2018-07-23 13:53:13,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2018-07-23 13:53:13,032 INFO L78 Accepts]: Start accepts. Automaton has 163 states. Word has length 323 [2018-07-23 13:53:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:13,033 INFO L225 Difference]: With dead ends: 327 [2018-07-23 13:53:13,033 INFO L226 Difference]: Without dead ends: 326 [2018-07-23 13:53:13,035 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2018-07-23 13:53:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2018-07-23 13:53:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2018-07-23 13:53:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-07-23 13:53:13,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 326 transitions. [2018-07-23 13:53:13,039 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 326 transitions. Word has length 323 [2018-07-23 13:53:13,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:13,039 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 326 transitions. [2018-07-23 13:53:13,039 INFO L472 AbstractCegarLoop]: Interpolant automaton has 163 states. [2018-07-23 13:53:13,039 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 326 transitions. [2018-07-23 13:53:13,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-07-23 13:53:13,040 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:13,040 INFO L357 BasicCegarLoop]: trace histogram [162, 161, 1, 1] [2018-07-23 13:53:13,041 INFO L414 AbstractCegarLoop]: === Iteration 162 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:13,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1796423070, now seen corresponding path program 161 times [2018-07-23 13:53:13,041 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 26082 backedges. 0 proven. 26082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:14,018 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:14,018 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2018-07-23 13:53:14,018 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:14,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:14,019 INFO L185 omatonBuilderFactory]: Interpolants [120601#true, 120603#(<= (+ main_offset 1048) main_length), 120602#false, 120605#(<= (+ main_offset 1040) main_length), 120604#(<= (+ main_offset 1044) main_length), 120607#(<= (+ main_offset 1032) main_length), 120606#(<= (+ main_offset 1036) main_length), 120609#(<= (+ main_offset 1024) main_length), 120608#(<= (+ main_offset 1028) main_length), 120611#(<= (+ main_offset 1016) main_length), 120610#(<= (+ main_offset 1020) main_length), 120613#(<= (+ main_offset 1008) main_length), 120612#(<= (+ main_offset 1012) main_length), 120615#(<= (+ main_offset 1000) main_length), 120614#(<= (+ main_offset 1004) main_length), 120617#(<= (+ main_offset 992) main_length), 120616#(<= (+ main_offset 996) main_length), 120619#(<= (+ main_offset 984) main_length), 120618#(<= (+ main_offset 988) main_length), 120621#(<= (+ main_offset 976) main_length), 120620#(<= (+ main_offset 980) main_length), 120623#(<= (+ main_offset 968) main_length), 120622#(<= (+ main_offset 972) main_length), 120625#(<= (+ main_offset 960) main_length), 120624#(<= (+ main_offset 964) main_length), 120627#(<= (+ main_offset 952) main_length), 120626#(<= (+ main_offset 956) main_length), 120629#(<= (+ main_offset 944) main_length), 120628#(<= (+ main_offset 948) main_length), 120631#(<= (+ main_offset 936) main_length), 120630#(<= (+ main_offset 940) main_length), 120633#(<= (+ main_offset 928) main_length), 120632#(<= (+ main_offset 932) main_length), 120635#(<= (+ main_offset 920) main_length), 120634#(<= (+ main_offset 924) main_length), 120637#(<= (+ main_offset 912) main_length), 120636#(<= (+ main_offset 916) main_length), 120639#(<= (+ main_offset 904) main_length), 120638#(<= (+ main_offset 908) main_length), 120641#(<= (+ main_offset 896) main_length), 120640#(<= (+ main_offset 900) main_length), 120643#(<= (+ main_offset 888) main_length), 120642#(<= (+ main_offset 892) main_length), 120645#(<= (+ main_offset 880) main_length), 120644#(<= (+ main_offset 884) main_length), 120647#(<= (+ main_offset 872) main_length), 120646#(<= (+ main_offset 876) main_length), 120649#(<= (+ main_offset 864) main_length), 120648#(<= (+ main_offset 868) main_length), 120651#(<= (+ main_offset 856) main_length), 120650#(<= (+ main_offset 860) main_length), 120653#(<= (+ main_offset 848) main_length), 120652#(<= (+ main_offset 852) main_length), 120655#(<= (+ main_offset 840) main_length), 120654#(<= (+ main_offset 844) main_length), 120657#(<= (+ main_offset 832) main_length), 120656#(<= (+ main_offset 836) main_length), 120659#(<= (+ main_offset 824) main_length), 120658#(<= (+ main_offset 828) main_length), 120661#(<= (+ main_offset 816) main_length), 120660#(<= (+ main_offset 820) main_length), 120663#(<= (+ main_offset 808) main_length), 120662#(<= (+ main_offset 812) main_length), 120665#(<= (+ main_offset 800) main_length), 120664#(<= (+ main_offset 804) main_length), 120667#(<= (+ main_offset 792) main_length), 120666#(<= (+ main_offset 796) main_length), 120669#(<= (+ main_offset 784) main_length), 120668#(<= (+ main_offset 788) main_length), 120671#(<= (+ main_offset 776) main_length), 120670#(<= (+ main_offset 780) main_length), 120673#(<= (+ main_offset 768) main_length), 120672#(<= (+ main_offset 772) main_length), 120675#(<= (+ main_offset 760) main_length), 120674#(<= (+ main_offset 764) main_length), 120677#(<= (+ main_offset 752) main_length), 120676#(<= (+ main_offset 756) main_length), 120679#(<= (+ main_offset 744) main_length), 120678#(<= (+ main_offset 748) main_length), 120681#(<= (+ main_offset 736) main_length), 120680#(<= (+ main_offset 740) main_length), 120683#(<= (+ main_offset 728) main_length), 120682#(<= (+ main_offset 732) main_length), 120685#(<= (+ main_offset 720) main_length), 120684#(<= (+ main_offset 724) main_length), 120687#(<= (+ main_offset 712) main_length), 120686#(<= (+ main_offset 716) main_length), 120689#(<= (+ main_offset 704) main_length), 120688#(<= (+ main_offset 708) main_length), 120691#(<= (+ main_offset 696) main_length), 120690#(<= (+ main_offset 700) main_length), 120693#(<= (+ main_offset 688) main_length), 120692#(<= (+ main_offset 692) main_length), 120695#(<= (+ main_offset 680) main_length), 120694#(<= (+ main_offset 684) main_length), 120697#(<= (+ main_offset 672) main_length), 120696#(<= (+ main_offset 676) main_length), 120699#(<= (+ main_offset 664) main_length), 120698#(<= (+ main_offset 668) main_length), 120701#(<= (+ main_offset 656) main_length), 120700#(<= (+ main_offset 660) main_length), 120703#(<= (+ main_offset 648) main_length), 120702#(<= (+ main_offset 652) main_length), 120705#(<= (+ main_offset 640) main_length), 120704#(<= (+ main_offset 644) main_length), 120707#(<= (+ main_offset 632) main_length), 120706#(<= (+ main_offset 636) main_length), 120709#(<= (+ main_offset 624) main_length), 120708#(<= (+ main_offset 628) main_length), 120711#(<= (+ main_offset 616) main_length), 120710#(<= (+ main_offset 620) main_length), 120713#(<= (+ main_offset 608) main_length), 120712#(<= (+ main_offset 612) main_length), 120715#(<= (+ main_offset 600) main_length), 120714#(<= (+ main_offset 604) main_length), 120717#(<= (+ main_offset 592) main_length), 120716#(<= (+ main_offset 596) main_length), 120719#(<= (+ main_offset 584) main_length), 120718#(<= (+ main_offset 588) main_length), 120721#(<= (+ main_offset 576) main_length), 120720#(<= (+ main_offset 580) main_length), 120723#(<= (+ main_offset 568) main_length), 120722#(<= (+ main_offset 572) main_length), 120725#(<= (+ main_offset 560) main_length), 120724#(<= (+ main_offset 564) main_length), 120727#(<= (+ main_offset 552) main_length), 120726#(<= (+ main_offset 556) main_length), 120729#(<= (+ main_offset 544) main_length), 120728#(<= (+ main_offset 548) main_length), 120731#(<= (+ main_offset 536) main_length), 120730#(<= (+ main_offset 540) main_length), 120733#(<= (+ main_offset 528) main_length), 120732#(<= (+ main_offset 532) main_length), 120735#(<= (+ main_offset 520) main_length), 120734#(<= (+ main_offset 524) main_length), 120737#(<= (+ main_offset 512) main_length), 120736#(<= (+ main_offset 516) main_length), 120739#(<= (+ main_offset 504) main_length), 120738#(<= (+ main_offset 508) main_length), 120741#(<= (+ main_offset 496) main_length), 120740#(<= (+ main_offset 500) main_length), 120743#(<= (+ main_offset 488) main_length), 120742#(<= (+ main_offset 492) main_length), 120745#(<= (+ main_offset 480) main_length), 120744#(<= (+ main_offset 484) main_length), 120747#(<= (+ main_offset 472) main_length), 120746#(<= (+ main_offset 476) main_length), 120749#(<= (+ main_offset 464) main_length), 120748#(<= (+ main_offset 468) main_length), 120751#(<= (+ main_offset 456) main_length), 120750#(<= (+ main_offset 460) main_length), 120753#(<= (+ main_offset 448) main_length), 120752#(<= (+ main_offset 452) main_length), 120755#(<= (+ main_offset 440) main_length), 120754#(<= (+ main_offset 444) main_length), 120757#(<= (+ main_offset 432) main_length), 120756#(<= (+ main_offset 436) main_length), 120759#(<= (+ main_offset 424) main_length), 120758#(<= (+ main_offset 428) main_length), 120761#(<= (+ main_offset 416) main_length), 120760#(<= (+ main_offset 420) main_length), 120763#(<= (+ main_offset 408) main_length), 120762#(<= (+ main_offset 412) main_length), 120764#(<= (+ main_offset 404) main_length)] [2018-07-23 13:53:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 26082 backedges. 0 proven. 26082 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:14,020 INFO L450 AbstractCegarLoop]: Interpolant automaton has 164 states [2018-07-23 13:53:14,022 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2018-07-23 13:53:14,022 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:53:14,023 INFO L87 Difference]: Start difference. First operand 326 states and 326 transitions. Second operand 164 states. [2018-07-23 13:53:14,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:14,938 INFO L93 Difference]: Finished difference Result 329 states and 329 transitions. [2018-07-23 13:53:14,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2018-07-23 13:53:14,938 INFO L78 Accepts]: Start accepts. Automaton has 164 states. Word has length 325 [2018-07-23 13:53:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:14,938 INFO L225 Difference]: With dead ends: 329 [2018-07-23 13:53:14,939 INFO L226 Difference]: Without dead ends: 328 [2018-07-23 13:53:14,940 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2018-07-23 13:53:14,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2018-07-23 13:53:14,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2018-07-23 13:53:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-07-23 13:53:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2018-07-23 13:53:14,945 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 325 [2018-07-23 13:53:14,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:14,946 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2018-07-23 13:53:14,946 INFO L472 AbstractCegarLoop]: Interpolant automaton has 164 states. [2018-07-23 13:53:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2018-07-23 13:53:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2018-07-23 13:53:14,947 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:14,948 INFO L357 BasicCegarLoop]: trace histogram [163, 162, 1, 1] [2018-07-23 13:53:14,948 INFO L414 AbstractCegarLoop]: === Iteration 163 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:14,948 INFO L82 PathProgramCache]: Analyzing trace with hash 214283812, now seen corresponding path program 162 times [2018-07-23 13:53:14,948 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 26406 backedges. 0 proven. 26406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:16,177 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:16,177 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2018-07-23 13:53:16,177 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:16,177 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 13:53:16,178 INFO L185 omatonBuilderFactory]: Interpolants [122113#(<= (+ main_offset 920) main_length), 122112#(<= (+ main_offset 924) main_length), 122115#(<= (+ main_offset 912) main_length), 122114#(<= (+ main_offset 916) main_length), 122117#(<= (+ main_offset 904) main_length), 122116#(<= (+ main_offset 908) main_length), 122119#(<= (+ main_offset 896) main_length), 122118#(<= (+ main_offset 900) main_length), 122121#(<= (+ main_offset 888) main_length), 122120#(<= (+ main_offset 892) main_length), 122123#(<= (+ main_offset 880) main_length), 122122#(<= (+ main_offset 884) main_length), 122125#(<= (+ main_offset 872) main_length), 122124#(<= (+ main_offset 876) main_length), 122127#(<= (+ main_offset 864) main_length), 122126#(<= (+ main_offset 868) main_length), 122129#(<= (+ main_offset 856) main_length), 122128#(<= (+ main_offset 860) main_length), 122131#(<= (+ main_offset 848) main_length), 122130#(<= (+ main_offset 852) main_length), 122133#(<= (+ main_offset 840) main_length), 122132#(<= (+ main_offset 844) main_length), 122135#(<= (+ main_offset 832) main_length), 122134#(<= (+ main_offset 836) main_length), 122137#(<= (+ main_offset 824) main_length), 122136#(<= (+ main_offset 828) main_length), 122139#(<= (+ main_offset 816) main_length), 122138#(<= (+ main_offset 820) main_length), 122141#(<= (+ main_offset 808) main_length), 122140#(<= (+ main_offset 812) main_length), 122143#(<= (+ main_offset 800) main_length), 122142#(<= (+ main_offset 804) main_length), 122145#(<= (+ main_offset 792) main_length), 122144#(<= (+ main_offset 796) main_length), 122147#(<= (+ main_offset 784) main_length), 122146#(<= (+ main_offset 788) main_length), 122149#(<= (+ main_offset 776) main_length), 122148#(<= (+ main_offset 780) main_length), 122151#(<= (+ main_offset 768) main_length), 122150#(<= (+ main_offset 772) main_length), 122153#(<= (+ main_offset 760) main_length), 122152#(<= (+ main_offset 764) main_length), 122155#(<= (+ main_offset 752) main_length), 122154#(<= (+ main_offset 756) main_length), 122157#(<= (+ main_offset 744) main_length), 122156#(<= (+ main_offset 748) main_length), 122159#(<= (+ main_offset 736) main_length), 122158#(<= (+ main_offset 740) main_length), 122161#(<= (+ main_offset 728) main_length), 122160#(<= (+ main_offset 732) main_length), 122163#(<= (+ main_offset 720) main_length), 122162#(<= (+ main_offset 724) main_length), 122165#(<= (+ main_offset 712) main_length), 122164#(<= (+ main_offset 716) main_length), 122167#(<= (+ main_offset 704) main_length), 122166#(<= (+ main_offset 708) main_length), 122169#(<= (+ main_offset 696) main_length), 122168#(<= (+ main_offset 700) main_length), 122171#(<= (+ main_offset 688) main_length), 122170#(<= (+ main_offset 692) main_length), 122173#(<= (+ main_offset 680) main_length), 122172#(<= (+ main_offset 684) main_length), 122175#(<= (+ main_offset 672) main_length), 122174#(<= (+ main_offset 676) main_length), 122177#(<= (+ main_offset 664) main_length), 122176#(<= (+ main_offset 668) main_length), 122179#(<= (+ main_offset 656) main_length), 122178#(<= (+ main_offset 660) main_length), 122181#(<= (+ main_offset 648) main_length), 122180#(<= (+ main_offset 652) main_length), 122183#(<= (+ main_offset 640) main_length), 122182#(<= (+ main_offset 644) main_length), 122185#(<= (+ main_offset 632) main_length), 122184#(<= (+ main_offset 636) main_length), 122187#(<= (+ main_offset 624) main_length), 122186#(<= (+ main_offset 628) main_length), 122189#(<= (+ main_offset 616) main_length), 122188#(<= (+ main_offset 620) main_length), 122191#(<= (+ main_offset 608) main_length), 122190#(<= (+ main_offset 612) main_length), 122193#(<= (+ main_offset 600) main_length), 122192#(<= (+ main_offset 604) main_length), 122195#(<= (+ main_offset 592) main_length), 122194#(<= (+ main_offset 596) main_length), 122197#(<= (+ main_offset 584) main_length), 122196#(<= (+ main_offset 588) main_length), 122199#(<= (+ main_offset 576) main_length), 122198#(<= (+ main_offset 580) main_length), 122201#(<= (+ main_offset 568) main_length), 122200#(<= (+ main_offset 572) main_length), 122203#(<= (+ main_offset 560) main_length), 122202#(<= (+ main_offset 564) main_length), 122205#(<= (+ main_offset 552) main_length), 122204#(<= (+ main_offset 556) main_length), 122207#(<= (+ main_offset 544) main_length), 122206#(<= (+ main_offset 548) main_length), 122209#(<= (+ main_offset 536) main_length), 122208#(<= (+ main_offset 540) main_length), 122211#(<= (+ main_offset 528) main_length), 122210#(<= (+ main_offset 532) main_length), 122213#(<= (+ main_offset 520) main_length), 122212#(<= (+ main_offset 524) main_length), 122215#(<= (+ main_offset 512) main_length), 122214#(<= (+ main_offset 516) main_length), 122217#(<= (+ main_offset 504) main_length), 122216#(<= (+ main_offset 508) main_length), 122219#(<= (+ main_offset 496) main_length), 122218#(<= (+ main_offset 500) main_length), 122221#(<= (+ main_offset 488) main_length), 122220#(<= (+ main_offset 492) main_length), 122223#(<= (+ main_offset 480) main_length), 122222#(<= (+ main_offset 484) main_length), 122225#(<= (+ main_offset 472) main_length), 122224#(<= (+ main_offset 476) main_length), 122227#(<= (+ main_offset 464) main_length), 122226#(<= (+ main_offset 468) main_length), 122229#(<= (+ main_offset 456) main_length), 122228#(<= (+ main_offset 460) main_length), 122231#(<= (+ main_offset 448) main_length), 122230#(<= (+ main_offset 452) main_length), 122233#(<= (+ main_offset 440) main_length), 122232#(<= (+ main_offset 444) main_length), 122235#(<= (+ main_offset 432) main_length), 122234#(<= (+ main_offset 436) main_length), 122237#(<= (+ main_offset 424) main_length), 122236#(<= (+ main_offset 428) main_length), 122239#(<= (+ main_offset 416) main_length), 122238#(<= (+ main_offset 420) main_length), 122241#(<= (+ main_offset 408) main_length), 122240#(<= (+ main_offset 412) main_length), 122243#(<= (+ main_offset 400) main_length), 122242#(<= (+ main_offset 404) main_length), 122079#true, 122081#(<= (+ main_offset 1048) main_length), 122080#false, 122083#(<= (+ main_offset 1040) main_length), 122082#(<= (+ main_offset 1044) main_length), 122085#(<= (+ main_offset 1032) main_length), 122084#(<= (+ main_offset 1036) main_length), 122087#(<= (+ main_offset 1024) main_length), 122086#(<= (+ main_offset 1028) main_length), 122089#(<= (+ main_offset 1016) main_length), 122088#(<= (+ main_offset 1020) main_length), 122091#(<= (+ main_offset 1008) main_length), 122090#(<= (+ main_offset 1012) main_length), 122093#(<= (+ main_offset 1000) main_length), 122092#(<= (+ main_offset 1004) main_length), 122095#(<= (+ main_offset 992) main_length), 122094#(<= (+ main_offset 996) main_length), 122097#(<= (+ main_offset 984) main_length), 122096#(<= (+ main_offset 988) main_length), 122099#(<= (+ main_offset 976) main_length), 122098#(<= (+ main_offset 980) main_length), 122101#(<= (+ main_offset 968) main_length), 122100#(<= (+ main_offset 972) main_length), 122103#(<= (+ main_offset 960) main_length), 122102#(<= (+ main_offset 964) main_length), 122105#(<= (+ main_offset 952) main_length), 122104#(<= (+ main_offset 956) main_length), 122107#(<= (+ main_offset 944) main_length), 122106#(<= (+ main_offset 948) main_length), 122109#(<= (+ main_offset 936) main_length), 122108#(<= (+ main_offset 940) main_length), 122111#(<= (+ main_offset 928) main_length), 122110#(<= (+ main_offset 932) main_length)] [2018-07-23 13:53:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 26406 backedges. 0 proven. 26406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:16,179 INFO L450 AbstractCegarLoop]: Interpolant automaton has 165 states [2018-07-23 13:53:16,181 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 165 interpolants. [2018-07-23 13:53:16,181 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:53:16,182 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand 165 states. [2018-07-23 13:53:16,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:16,918 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2018-07-23 13:53:16,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2018-07-23 13:53:16,918 INFO L78 Accepts]: Start accepts. Automaton has 165 states. Word has length 327 [2018-07-23 13:53:16,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:16,918 INFO L225 Difference]: With dead ends: 331 [2018-07-23 13:53:16,918 INFO L226 Difference]: Without dead ends: 330 [2018-07-23 13:53:16,920 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2018-07-23 13:53:16,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-07-23 13:53:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2018-07-23 13:53:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2018-07-23 13:53:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2018-07-23 13:53:16,924 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 327 [2018-07-23 13:53:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:16,924 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2018-07-23 13:53:16,924 INFO L472 AbstractCegarLoop]: Interpolant automaton has 165 states. [2018-07-23 13:53:16,924 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2018-07-23 13:53:16,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-07-23 13:53:16,925 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:16,925 INFO L357 BasicCegarLoop]: trace histogram [164, 163, 1, 1] [2018-07-23 13:53:16,925 INFO L414 AbstractCegarLoop]: === Iteration 164 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash -231685786, now seen corresponding path program 163 times [2018-07-23 13:53:16,925 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:17,914 INFO L134 CoverageAnalysis]: Checked inductivity of 26732 backedges. 0 proven. 26732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,915 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:17,915 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2018-07-23 13:53:17,915 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,916 INFO L185 omatonBuilderFactory]: Interpolants [123649#(<= (+ main_offset 724) main_length), 123648#(<= (+ main_offset 728) main_length), 123651#(<= (+ main_offset 716) main_length), 123650#(<= (+ main_offset 720) main_length), 123653#(<= (+ main_offset 708) main_length), 123652#(<= (+ main_offset 712) main_length), 123655#(<= (+ main_offset 700) main_length), 123654#(<= (+ main_offset 704) main_length), 123657#(<= (+ main_offset 692) main_length), 123656#(<= (+ main_offset 696) main_length), 123659#(<= (+ main_offset 684) main_length), 123658#(<= (+ main_offset 688) main_length), 123661#(<= (+ main_offset 676) main_length), 123660#(<= (+ main_offset 680) main_length), 123663#(<= (+ main_offset 668) main_length), 123662#(<= (+ main_offset 672) main_length), 123665#(<= (+ main_offset 660) main_length), 123664#(<= (+ main_offset 664) main_length), 123667#(<= (+ main_offset 652) main_length), 123666#(<= (+ main_offset 656) main_length), 123669#(<= (+ main_offset 644) main_length), 123668#(<= (+ main_offset 648) main_length), 123671#(<= (+ main_offset 636) main_length), 123670#(<= (+ main_offset 640) main_length), 123673#(<= (+ main_offset 628) main_length), 123672#(<= (+ main_offset 632) main_length), 123675#(<= (+ main_offset 620) main_length), 123674#(<= (+ main_offset 624) main_length), 123677#(<= (+ main_offset 612) main_length), 123676#(<= (+ main_offset 616) main_length), 123679#(<= (+ main_offset 604) main_length), 123678#(<= (+ main_offset 608) main_length), 123681#(<= (+ main_offset 596) main_length), 123680#(<= (+ main_offset 600) main_length), 123683#(<= (+ main_offset 588) main_length), 123682#(<= (+ main_offset 592) main_length), 123685#(<= (+ main_offset 580) main_length), 123684#(<= (+ main_offset 584) main_length), 123687#(<= (+ main_offset 572) main_length), 123686#(<= (+ main_offset 576) main_length), 123689#(<= (+ main_offset 564) main_length), 123688#(<= (+ main_offset 568) main_length), 123691#(<= (+ main_offset 556) main_length), 123690#(<= (+ main_offset 560) main_length), 123693#(<= (+ main_offset 548) main_length), 123692#(<= (+ main_offset 552) main_length), 123695#(<= (+ main_offset 540) main_length), 123694#(<= (+ main_offset 544) main_length), 123697#(<= (+ main_offset 532) main_length), 123696#(<= (+ main_offset 536) main_length), 123699#(<= (+ main_offset 524) main_length), 123698#(<= (+ main_offset 528) main_length), 123701#(<= (+ main_offset 516) main_length), 123700#(<= (+ main_offset 520) main_length), 123703#(<= (+ main_offset 508) main_length), 123702#(<= (+ main_offset 512) main_length), 123705#(<= (+ main_offset 500) main_length), 123704#(<= (+ main_offset 504) main_length), 123707#(<= (+ main_offset 492) main_length), 123706#(<= (+ main_offset 496) main_length), 123709#(<= (+ main_offset 484) main_length), 123708#(<= (+ main_offset 488) main_length), 123711#(<= (+ main_offset 476) main_length), 123710#(<= (+ main_offset 480) main_length), 123713#(<= (+ main_offset 468) main_length), 123712#(<= (+ main_offset 472) main_length), 123715#(<= (+ main_offset 460) main_length), 123714#(<= (+ main_offset 464) main_length), 123717#(<= (+ main_offset 452) main_length), 123716#(<= (+ main_offset 456) main_length), 123719#(<= (+ main_offset 444) main_length), 123718#(<= (+ main_offset 448) main_length), 123721#(<= (+ main_offset 436) main_length), 123720#(<= (+ main_offset 440) main_length), 123723#(<= (+ main_offset 428) main_length), 123722#(<= (+ main_offset 432) main_length), 123725#(<= (+ main_offset 420) main_length), 123724#(<= (+ main_offset 424) main_length), 123727#(<= (+ main_offset 412) main_length), 123726#(<= (+ main_offset 416) main_length), 123729#(<= (+ main_offset 404) main_length), 123728#(<= (+ main_offset 408) main_length), 123731#(<= (+ main_offset 396) main_length), 123730#(<= (+ main_offset 400) main_length), 123567#false, 123566#true, 123569#(<= (+ main_offset 1044) main_length), 123568#(<= (+ main_offset 1048) main_length), 123571#(<= (+ main_offset 1036) main_length), 123570#(<= (+ main_offset 1040) main_length), 123573#(<= (+ main_offset 1028) main_length), 123572#(<= (+ main_offset 1032) main_length), 123575#(<= (+ main_offset 1020) main_length), 123574#(<= (+ main_offset 1024) main_length), 123577#(<= (+ main_offset 1012) main_length), 123576#(<= (+ main_offset 1016) main_length), 123579#(<= (+ main_offset 1004) main_length), 123578#(<= (+ main_offset 1008) main_length), 123581#(<= (+ main_offset 996) main_length), 123580#(<= (+ main_offset 1000) main_length), 123583#(<= (+ main_offset 988) main_length), 123582#(<= (+ main_offset 992) main_length), 123585#(<= (+ main_offset 980) main_length), 123584#(<= (+ main_offset 984) main_length), 123587#(<= (+ main_offset 972) main_length), 123586#(<= (+ main_offset 976) main_length), 123589#(<= (+ main_offset 964) main_length), 123588#(<= (+ main_offset 968) main_length), 123591#(<= (+ main_offset 956) main_length), 123590#(<= (+ main_offset 960) main_length), 123593#(<= (+ main_offset 948) main_length), 123592#(<= (+ main_offset 952) main_length), 123595#(<= (+ main_offset 940) main_length), 123594#(<= (+ main_offset 944) main_length), 123597#(<= (+ main_offset 932) main_length), 123596#(<= (+ main_offset 936) main_length), 123599#(<= (+ main_offset 924) main_length), 123598#(<= (+ main_offset 928) main_length), 123601#(<= (+ main_offset 916) main_length), 123600#(<= (+ main_offset 920) main_length), 123603#(<= (+ main_offset 908) main_length), 123602#(<= (+ main_offset 912) main_length), 123605#(<= (+ main_offset 900) main_length), 123604#(<= (+ main_offset 904) main_length), 123607#(<= (+ main_offset 892) main_length), 123606#(<= (+ main_offset 896) main_length), 123609#(<= (+ main_offset 884) main_length), 123608#(<= (+ main_offset 888) main_length), 123611#(<= (+ main_offset 876) main_length), 123610#(<= (+ main_offset 880) main_length), 123613#(<= (+ main_offset 868) main_length), 123612#(<= (+ main_offset 872) main_length), 123615#(<= (+ main_offset 860) main_length), 123614#(<= (+ main_offset 864) main_length), 123617#(<= (+ main_offset 852) main_length), 123616#(<= (+ main_offset 856) main_length), 123619#(<= (+ main_offset 844) main_length), 123618#(<= (+ main_offset 848) main_length), 123621#(<= (+ main_offset 836) main_length), 123620#(<= (+ main_offset 840) main_length), 123623#(<= (+ main_offset 828) main_length), 123622#(<= (+ main_offset 832) main_length), 123625#(<= (+ main_offset 820) main_length), 123624#(<= (+ main_offset 824) main_length), 123627#(<= (+ main_offset 812) main_length), 123626#(<= (+ main_offset 816) main_length), 123629#(<= (+ main_offset 804) main_length), 123628#(<= (+ main_offset 808) main_length), 123631#(<= (+ main_offset 796) main_length), 123630#(<= (+ main_offset 800) main_length), 123633#(<= (+ main_offset 788) main_length), 123632#(<= (+ main_offset 792) main_length), 123635#(<= (+ main_offset 780) main_length), 123634#(<= (+ main_offset 784) main_length), 123637#(<= (+ main_offset 772) main_length), 123636#(<= (+ main_offset 776) main_length), 123639#(<= (+ main_offset 764) main_length), 123638#(<= (+ main_offset 768) main_length), 123641#(<= (+ main_offset 756) main_length), 123640#(<= (+ main_offset 760) main_length), 123643#(<= (+ main_offset 748) main_length), 123642#(<= (+ main_offset 752) main_length), 123645#(<= (+ main_offset 740) main_length), 123644#(<= (+ main_offset 744) main_length), 123647#(<= (+ main_offset 732) main_length), 123646#(<= (+ main_offset 736) main_length)] [2018-07-23 13:53:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 26732 backedges. 0 proven. 26732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:17,917 INFO L450 AbstractCegarLoop]: Interpolant automaton has 166 states [2018-07-23 13:53:17,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2018-07-23 13:53:17,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:53:17,919 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand 166 states. [2018-07-23 13:53:18,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:18,219 INFO L93 Difference]: Finished difference Result 333 states and 333 transitions. [2018-07-23 13:53:18,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2018-07-23 13:53:18,219 INFO L78 Accepts]: Start accepts. Automaton has 166 states. Word has length 329 [2018-07-23 13:53:18,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:18,220 INFO L225 Difference]: With dead ends: 333 [2018-07-23 13:53:18,220 INFO L226 Difference]: Without dead ends: 332 [2018-07-23 13:53:18,221 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2018-07-23 13:53:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-07-23 13:53:18,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2018-07-23 13:53:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-07-23 13:53:18,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 332 transitions. [2018-07-23 13:53:18,224 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 332 transitions. Word has length 329 [2018-07-23 13:53:18,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:18,225 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 332 transitions. [2018-07-23 13:53:18,225 INFO L472 AbstractCegarLoop]: Interpolant automaton has 166 states. [2018-07-23 13:53:18,225 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 332 transitions. [2018-07-23 13:53:18,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-07-23 13:53:18,226 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:18,226 INFO L357 BasicCegarLoop]: trace histogram [165, 164, 1, 1] [2018-07-23 13:53:18,226 INFO L414 AbstractCegarLoop]: === Iteration 165 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:18,226 INFO L82 PathProgramCache]: Analyzing trace with hash 688260136, now seen corresponding path program 164 times [2018-07-23 13:53:18,226 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 27060 backedges. 0 proven. 27060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:19,193 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:19,193 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2018-07-23 13:53:19,193 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:19,194 INFO L185 omatonBuilderFactory]: Interpolants [125185#(<= (+ main_offset 564) main_length), 125184#(<= (+ main_offset 568) main_length), 125187#(<= (+ main_offset 556) main_length), 125186#(<= (+ main_offset 560) main_length), 125189#(<= (+ main_offset 548) main_length), 125188#(<= (+ main_offset 552) main_length), 125191#(<= (+ main_offset 540) main_length), 125190#(<= (+ main_offset 544) main_length), 125193#(<= (+ main_offset 532) main_length), 125192#(<= (+ main_offset 536) main_length), 125195#(<= (+ main_offset 524) main_length), 125194#(<= (+ main_offset 528) main_length), 125197#(<= (+ main_offset 516) main_length), 125196#(<= (+ main_offset 520) main_length), 125199#(<= (+ main_offset 508) main_length), 125198#(<= (+ main_offset 512) main_length), 125201#(<= (+ main_offset 500) main_length), 125200#(<= (+ main_offset 504) main_length), 125203#(<= (+ main_offset 492) main_length), 125202#(<= (+ main_offset 496) main_length), 125205#(<= (+ main_offset 484) main_length), 125204#(<= (+ main_offset 488) main_length), 125207#(<= (+ main_offset 476) main_length), 125206#(<= (+ main_offset 480) main_length), 125209#(<= (+ main_offset 468) main_length), 125208#(<= (+ main_offset 472) main_length), 125211#(<= (+ main_offset 460) main_length), 125210#(<= (+ main_offset 464) main_length), 125213#(<= (+ main_offset 452) main_length), 125212#(<= (+ main_offset 456) main_length), 125215#(<= (+ main_offset 444) main_length), 125214#(<= (+ main_offset 448) main_length), 125217#(<= (+ main_offset 436) main_length), 125216#(<= (+ main_offset 440) main_length), 125219#(<= (+ main_offset 428) main_length), 125218#(<= (+ main_offset 432) main_length), 125221#(<= (+ main_offset 420) main_length), 125220#(<= (+ main_offset 424) main_length), 125223#(<= (+ main_offset 412) main_length), 125222#(<= (+ main_offset 416) main_length), 125225#(<= (+ main_offset 404) main_length), 125224#(<= (+ main_offset 408) main_length), 125227#(<= (+ main_offset 396) main_length), 125226#(<= (+ main_offset 400) main_length), 125228#(<= (+ main_offset 392) main_length), 125063#false, 125062#true, 125065#(<= (+ main_offset 1044) main_length), 125064#(<= (+ main_offset 1048) main_length), 125067#(<= (+ main_offset 1036) main_length), 125066#(<= (+ main_offset 1040) main_length), 125069#(<= (+ main_offset 1028) main_length), 125068#(<= (+ main_offset 1032) main_length), 125071#(<= (+ main_offset 1020) main_length), 125070#(<= (+ main_offset 1024) main_length), 125073#(<= (+ main_offset 1012) main_length), 125072#(<= (+ main_offset 1016) main_length), 125075#(<= (+ main_offset 1004) main_length), 125074#(<= (+ main_offset 1008) main_length), 125077#(<= (+ main_offset 996) main_length), 125076#(<= (+ main_offset 1000) main_length), 125079#(<= (+ main_offset 988) main_length), 125078#(<= (+ main_offset 992) main_length), 125081#(<= (+ main_offset 980) main_length), 125080#(<= (+ main_offset 984) main_length), 125083#(<= (+ main_offset 972) main_length), 125082#(<= (+ main_offset 976) main_length), 125085#(<= (+ main_offset 964) main_length), 125084#(<= (+ main_offset 968) main_length), 125087#(<= (+ main_offset 956) main_length), 125086#(<= (+ main_offset 960) main_length), 125089#(<= (+ main_offset 948) main_length), 125088#(<= (+ main_offset 952) main_length), 125091#(<= (+ main_offset 940) main_length), 125090#(<= (+ main_offset 944) main_length), 125093#(<= (+ main_offset 932) main_length), 125092#(<= (+ main_offset 936) main_length), 125095#(<= (+ main_offset 924) main_length), 125094#(<= (+ main_offset 928) main_length), 125097#(<= (+ main_offset 916) main_length), 125096#(<= (+ main_offset 920) main_length), 125099#(<= (+ main_offset 908) main_length), 125098#(<= (+ main_offset 912) main_length), 125101#(<= (+ main_offset 900) main_length), 125100#(<= (+ main_offset 904) main_length), 125103#(<= (+ main_offset 892) main_length), 125102#(<= (+ main_offset 896) main_length), 125105#(<= (+ main_offset 884) main_length), 125104#(<= (+ main_offset 888) main_length), 125107#(<= (+ main_offset 876) main_length), 125106#(<= (+ main_offset 880) main_length), 125109#(<= (+ main_offset 868) main_length), 125108#(<= (+ main_offset 872) main_length), 125111#(<= (+ main_offset 860) main_length), 125110#(<= (+ main_offset 864) main_length), 125113#(<= (+ main_offset 852) main_length), 125112#(<= (+ main_offset 856) main_length), 125115#(<= (+ main_offset 844) main_length), 125114#(<= (+ main_offset 848) main_length), 125117#(<= (+ main_offset 836) main_length), 125116#(<= (+ main_offset 840) main_length), 125119#(<= (+ main_offset 828) main_length), 125118#(<= (+ main_offset 832) main_length), 125121#(<= (+ main_offset 820) main_length), 125120#(<= (+ main_offset 824) main_length), 125123#(<= (+ main_offset 812) main_length), 125122#(<= (+ main_offset 816) main_length), 125125#(<= (+ main_offset 804) main_length), 125124#(<= (+ main_offset 808) main_length), 125127#(<= (+ main_offset 796) main_length), 125126#(<= (+ main_offset 800) main_length), 125129#(<= (+ main_offset 788) main_length), 125128#(<= (+ main_offset 792) main_length), 125131#(<= (+ main_offset 780) main_length), 125130#(<= (+ main_offset 784) main_length), 125133#(<= (+ main_offset 772) main_length), 125132#(<= (+ main_offset 776) main_length), 125135#(<= (+ main_offset 764) main_length), 125134#(<= (+ main_offset 768) main_length), 125137#(<= (+ main_offset 756) main_length), 125136#(<= (+ main_offset 760) main_length), 125139#(<= (+ main_offset 748) main_length), 125138#(<= (+ main_offset 752) main_length), 125141#(<= (+ main_offset 740) main_length), 125140#(<= (+ main_offset 744) main_length), 125143#(<= (+ main_offset 732) main_length), 125142#(<= (+ main_offset 736) main_length), 125145#(<= (+ main_offset 724) main_length), 125144#(<= (+ main_offset 728) main_length), 125147#(<= (+ main_offset 716) main_length), 125146#(<= (+ main_offset 720) main_length), 125149#(<= (+ main_offset 708) main_length), 125148#(<= (+ main_offset 712) main_length), 125151#(<= (+ main_offset 700) main_length), 125150#(<= (+ main_offset 704) main_length), 125153#(<= (+ main_offset 692) main_length), 125152#(<= (+ main_offset 696) main_length), 125155#(<= (+ main_offset 684) main_length), 125154#(<= (+ main_offset 688) main_length), 125157#(<= (+ main_offset 676) main_length), 125156#(<= (+ main_offset 680) main_length), 125159#(<= (+ main_offset 668) main_length), 125158#(<= (+ main_offset 672) main_length), 125161#(<= (+ main_offset 660) main_length), 125160#(<= (+ main_offset 664) main_length), 125163#(<= (+ main_offset 652) main_length), 125162#(<= (+ main_offset 656) main_length), 125165#(<= (+ main_offset 644) main_length), 125164#(<= (+ main_offset 648) main_length), 125167#(<= (+ main_offset 636) main_length), 125166#(<= (+ main_offset 640) main_length), 125169#(<= (+ main_offset 628) main_length), 125168#(<= (+ main_offset 632) main_length), 125171#(<= (+ main_offset 620) main_length), 125170#(<= (+ main_offset 624) main_length), 125173#(<= (+ main_offset 612) main_length), 125172#(<= (+ main_offset 616) main_length), 125175#(<= (+ main_offset 604) main_length), 125174#(<= (+ main_offset 608) main_length), 125177#(<= (+ main_offset 596) main_length), 125176#(<= (+ main_offset 600) main_length), 125179#(<= (+ main_offset 588) main_length), 125178#(<= (+ main_offset 592) main_length), 125181#(<= (+ main_offset 580) main_length), 125180#(<= (+ main_offset 584) main_length), 125183#(<= (+ main_offset 572) main_length), 125182#(<= (+ main_offset 576) main_length)] [2018-07-23 13:53:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 27060 backedges. 0 proven. 27060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:19,195 INFO L450 AbstractCegarLoop]: Interpolant automaton has 167 states [2018-07-23 13:53:19,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2018-07-23 13:53:19,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:53:19,198 INFO L87 Difference]: Start difference. First operand 332 states and 332 transitions. Second operand 167 states. [2018-07-23 13:53:19,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:19,613 INFO L93 Difference]: Finished difference Result 335 states and 335 transitions. [2018-07-23 13:53:19,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2018-07-23 13:53:19,613 INFO L78 Accepts]: Start accepts. Automaton has 167 states. Word has length 331 [2018-07-23 13:53:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:19,614 INFO L225 Difference]: With dead ends: 335 [2018-07-23 13:53:19,614 INFO L226 Difference]: Without dead ends: 334 [2018-07-23 13:53:19,615 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2018-07-23 13:53:19,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-07-23 13:53:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-07-23 13:53:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-07-23 13:53:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 334 transitions. [2018-07-23 13:53:19,619 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 334 transitions. Word has length 331 [2018-07-23 13:53:19,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:19,620 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 334 transitions. [2018-07-23 13:53:19,620 INFO L472 AbstractCegarLoop]: Interpolant automaton has 167 states. [2018-07-23 13:53:19,620 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 334 transitions. [2018-07-23 13:53:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-07-23 13:53:19,621 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:19,621 INFO L357 BasicCegarLoop]: trace histogram [166, 165, 1, 1] [2018-07-23 13:53:19,621 INFO L414 AbstractCegarLoop]: === Iteration 166 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash -6971798, now seen corresponding path program 165 times [2018-07-23 13:53:19,621 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 27390 backedges. 0 proven. 27390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,622 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:20,622 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2018-07-23 13:53:20,622 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:20,622 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 13:53:20,623 INFO L185 omatonBuilderFactory]: Interpolants [126721#(<= (+ main_offset 440) main_length), 126720#(<= (+ main_offset 444) main_length), 126723#(<= (+ main_offset 432) main_length), 126722#(<= (+ main_offset 436) main_length), 126725#(<= (+ main_offset 424) main_length), 126724#(<= (+ main_offset 428) main_length), 126727#(<= (+ main_offset 416) main_length), 126726#(<= (+ main_offset 420) main_length), 126729#(<= (+ main_offset 408) main_length), 126728#(<= (+ main_offset 412) main_length), 126731#(<= (+ main_offset 400) main_length), 126730#(<= (+ main_offset 404) main_length), 126733#(<= (+ main_offset 392) main_length), 126732#(<= (+ main_offset 396) main_length), 126734#(<= (+ main_offset 388) main_length), 126567#true, 126569#(<= (+ main_offset 1048) main_length), 126568#false, 126571#(<= (+ main_offset 1040) main_length), 126570#(<= (+ main_offset 1044) main_length), 126573#(<= (+ main_offset 1032) main_length), 126572#(<= (+ main_offset 1036) main_length), 126575#(<= (+ main_offset 1024) main_length), 126574#(<= (+ main_offset 1028) main_length), 126577#(<= (+ main_offset 1016) main_length), 126576#(<= (+ main_offset 1020) main_length), 126579#(<= (+ main_offset 1008) main_length), 126578#(<= (+ main_offset 1012) main_length), 126581#(<= (+ main_offset 1000) main_length), 126580#(<= (+ main_offset 1004) main_length), 126583#(<= (+ main_offset 992) main_length), 126582#(<= (+ main_offset 996) main_length), 126585#(<= (+ main_offset 984) main_length), 126584#(<= (+ main_offset 988) main_length), 126587#(<= (+ main_offset 976) main_length), 126586#(<= (+ main_offset 980) main_length), 126589#(<= (+ main_offset 968) main_length), 126588#(<= (+ main_offset 972) main_length), 126591#(<= (+ main_offset 960) main_length), 126590#(<= (+ main_offset 964) main_length), 126593#(<= (+ main_offset 952) main_length), 126592#(<= (+ main_offset 956) main_length), 126595#(<= (+ main_offset 944) main_length), 126594#(<= (+ main_offset 948) main_length), 126597#(<= (+ main_offset 936) main_length), 126596#(<= (+ main_offset 940) main_length), 126599#(<= (+ main_offset 928) main_length), 126598#(<= (+ main_offset 932) main_length), 126601#(<= (+ main_offset 920) main_length), 126600#(<= (+ main_offset 924) main_length), 126603#(<= (+ main_offset 912) main_length), 126602#(<= (+ main_offset 916) main_length), 126605#(<= (+ main_offset 904) main_length), 126604#(<= (+ main_offset 908) main_length), 126607#(<= (+ main_offset 896) main_length), 126606#(<= (+ main_offset 900) main_length), 126609#(<= (+ main_offset 888) main_length), 126608#(<= (+ main_offset 892) main_length), 126611#(<= (+ main_offset 880) main_length), 126610#(<= (+ main_offset 884) main_length), 126613#(<= (+ main_offset 872) main_length), 126612#(<= (+ main_offset 876) main_length), 126615#(<= (+ main_offset 864) main_length), 126614#(<= (+ main_offset 868) main_length), 126617#(<= (+ main_offset 856) main_length), 126616#(<= (+ main_offset 860) main_length), 126619#(<= (+ main_offset 848) main_length), 126618#(<= (+ main_offset 852) main_length), 126621#(<= (+ main_offset 840) main_length), 126620#(<= (+ main_offset 844) main_length), 126623#(<= (+ main_offset 832) main_length), 126622#(<= (+ main_offset 836) main_length), 126625#(<= (+ main_offset 824) main_length), 126624#(<= (+ main_offset 828) main_length), 126627#(<= (+ main_offset 816) main_length), 126626#(<= (+ main_offset 820) main_length), 126629#(<= (+ main_offset 808) main_length), 126628#(<= (+ main_offset 812) main_length), 126631#(<= (+ main_offset 800) main_length), 126630#(<= (+ main_offset 804) main_length), 126633#(<= (+ main_offset 792) main_length), 126632#(<= (+ main_offset 796) main_length), 126635#(<= (+ main_offset 784) main_length), 126634#(<= (+ main_offset 788) main_length), 126637#(<= (+ main_offset 776) main_length), 126636#(<= (+ main_offset 780) main_length), 126639#(<= (+ main_offset 768) main_length), 126638#(<= (+ main_offset 772) main_length), 126641#(<= (+ main_offset 760) main_length), 126640#(<= (+ main_offset 764) main_length), 126643#(<= (+ main_offset 752) main_length), 126642#(<= (+ main_offset 756) main_length), 126645#(<= (+ main_offset 744) main_length), 126644#(<= (+ main_offset 748) main_length), 126647#(<= (+ main_offset 736) main_length), 126646#(<= (+ main_offset 740) main_length), 126649#(<= (+ main_offset 728) main_length), 126648#(<= (+ main_offset 732) main_length), 126651#(<= (+ main_offset 720) main_length), 126650#(<= (+ main_offset 724) main_length), 126653#(<= (+ main_offset 712) main_length), 126652#(<= (+ main_offset 716) main_length), 126655#(<= (+ main_offset 704) main_length), 126654#(<= (+ main_offset 708) main_length), 126657#(<= (+ main_offset 696) main_length), 126656#(<= (+ main_offset 700) main_length), 126659#(<= (+ main_offset 688) main_length), 126658#(<= (+ main_offset 692) main_length), 126661#(<= (+ main_offset 680) main_length), 126660#(<= (+ main_offset 684) main_length), 126663#(<= (+ main_offset 672) main_length), 126662#(<= (+ main_offset 676) main_length), 126665#(<= (+ main_offset 664) main_length), 126664#(<= (+ main_offset 668) main_length), 126667#(<= (+ main_offset 656) main_length), 126666#(<= (+ main_offset 660) main_length), 126669#(<= (+ main_offset 648) main_length), 126668#(<= (+ main_offset 652) main_length), 126671#(<= (+ main_offset 640) main_length), 126670#(<= (+ main_offset 644) main_length), 126673#(<= (+ main_offset 632) main_length), 126672#(<= (+ main_offset 636) main_length), 126675#(<= (+ main_offset 624) main_length), 126674#(<= (+ main_offset 628) main_length), 126677#(<= (+ main_offset 616) main_length), 126676#(<= (+ main_offset 620) main_length), 126679#(<= (+ main_offset 608) main_length), 126678#(<= (+ main_offset 612) main_length), 126681#(<= (+ main_offset 600) main_length), 126680#(<= (+ main_offset 604) main_length), 126683#(<= (+ main_offset 592) main_length), 126682#(<= (+ main_offset 596) main_length), 126685#(<= (+ main_offset 584) main_length), 126684#(<= (+ main_offset 588) main_length), 126687#(<= (+ main_offset 576) main_length), 126686#(<= (+ main_offset 580) main_length), 126689#(<= (+ main_offset 568) main_length), 126688#(<= (+ main_offset 572) main_length), 126691#(<= (+ main_offset 560) main_length), 126690#(<= (+ main_offset 564) main_length), 126693#(<= (+ main_offset 552) main_length), 126692#(<= (+ main_offset 556) main_length), 126695#(<= (+ main_offset 544) main_length), 126694#(<= (+ main_offset 548) main_length), 126697#(<= (+ main_offset 536) main_length), 126696#(<= (+ main_offset 540) main_length), 126699#(<= (+ main_offset 528) main_length), 126698#(<= (+ main_offset 532) main_length), 126701#(<= (+ main_offset 520) main_length), 126700#(<= (+ main_offset 524) main_length), 126703#(<= (+ main_offset 512) main_length), 126702#(<= (+ main_offset 516) main_length), 126705#(<= (+ main_offset 504) main_length), 126704#(<= (+ main_offset 508) main_length), 126707#(<= (+ main_offset 496) main_length), 126706#(<= (+ main_offset 500) main_length), 126709#(<= (+ main_offset 488) main_length), 126708#(<= (+ main_offset 492) main_length), 126711#(<= (+ main_offset 480) main_length), 126710#(<= (+ main_offset 484) main_length), 126713#(<= (+ main_offset 472) main_length), 126712#(<= (+ main_offset 476) main_length), 126715#(<= (+ main_offset 464) main_length), 126714#(<= (+ main_offset 468) main_length), 126717#(<= (+ main_offset 456) main_length), 126716#(<= (+ main_offset 460) main_length), 126719#(<= (+ main_offset 448) main_length), 126718#(<= (+ main_offset 452) main_length)] [2018-07-23 13:53:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 27390 backedges. 0 proven. 27390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:20,624 INFO L450 AbstractCegarLoop]: Interpolant automaton has 168 states [2018-07-23 13:53:20,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2018-07-23 13:53:20,626 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:53:20,627 INFO L87 Difference]: Start difference. First operand 334 states and 334 transitions. Second operand 168 states. [2018-07-23 13:53:21,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:21,368 INFO L93 Difference]: Finished difference Result 337 states and 337 transitions. [2018-07-23 13:53:21,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2018-07-23 13:53:21,368 INFO L78 Accepts]: Start accepts. Automaton has 168 states. Word has length 333 [2018-07-23 13:53:21,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:21,369 INFO L225 Difference]: With dead ends: 337 [2018-07-23 13:53:21,369 INFO L226 Difference]: Without dead ends: 336 [2018-07-23 13:53:21,370 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2018-07-23 13:53:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-07-23 13:53:21,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2018-07-23 13:53:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2018-07-23 13:53:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 336 transitions. [2018-07-23 13:53:21,374 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 336 transitions. Word has length 333 [2018-07-23 13:53:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:21,375 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 336 transitions. [2018-07-23 13:53:21,375 INFO L472 AbstractCegarLoop]: Interpolant automaton has 168 states. [2018-07-23 13:53:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 336 transitions. [2018-07-23 13:53:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-07-23 13:53:21,376 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:21,376 INFO L357 BasicCegarLoop]: trace histogram [167, 166, 1, 1] [2018-07-23 13:53:21,376 INFO L414 AbstractCegarLoop]: === Iteration 167 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:21,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1890037804, now seen corresponding path program 166 times [2018-07-23 13:53:21,376 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:22,383 INFO L134 CoverageAnalysis]: Checked inductivity of 27722 backedges. 0 proven. 27722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,383 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:22,384 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2018-07-23 13:53:22,384 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:22,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,384 INFO L185 omatonBuilderFactory]: Interpolants [128081#true, 128083#(<= (+ main_offset 1048) main_length), 128082#false, 128085#(<= (+ main_offset 1040) main_length), 128084#(<= (+ main_offset 1044) main_length), 128087#(<= (+ main_offset 1032) main_length), 128086#(<= (+ main_offset 1036) main_length), 128089#(<= (+ main_offset 1024) main_length), 128088#(<= (+ main_offset 1028) main_length), 128091#(<= (+ main_offset 1016) main_length), 128090#(<= (+ main_offset 1020) main_length), 128093#(<= (+ main_offset 1008) main_length), 128092#(<= (+ main_offset 1012) main_length), 128095#(<= (+ main_offset 1000) main_length), 128094#(<= (+ main_offset 1004) main_length), 128097#(<= (+ main_offset 992) main_length), 128096#(<= (+ main_offset 996) main_length), 128099#(<= (+ main_offset 984) main_length), 128098#(<= (+ main_offset 988) main_length), 128101#(<= (+ main_offset 976) main_length), 128100#(<= (+ main_offset 980) main_length), 128103#(<= (+ main_offset 968) main_length), 128102#(<= (+ main_offset 972) main_length), 128105#(<= (+ main_offset 960) main_length), 128104#(<= (+ main_offset 964) main_length), 128107#(<= (+ main_offset 952) main_length), 128106#(<= (+ main_offset 956) main_length), 128109#(<= (+ main_offset 944) main_length), 128108#(<= (+ main_offset 948) main_length), 128111#(<= (+ main_offset 936) main_length), 128110#(<= (+ main_offset 940) main_length), 128113#(<= (+ main_offset 928) main_length), 128112#(<= (+ main_offset 932) main_length), 128115#(<= (+ main_offset 920) main_length), 128114#(<= (+ main_offset 924) main_length), 128117#(<= (+ main_offset 912) main_length), 128116#(<= (+ main_offset 916) main_length), 128119#(<= (+ main_offset 904) main_length), 128118#(<= (+ main_offset 908) main_length), 128121#(<= (+ main_offset 896) main_length), 128120#(<= (+ main_offset 900) main_length), 128123#(<= (+ main_offset 888) main_length), 128122#(<= (+ main_offset 892) main_length), 128125#(<= (+ main_offset 880) main_length), 128124#(<= (+ main_offset 884) main_length), 128127#(<= (+ main_offset 872) main_length), 128126#(<= (+ main_offset 876) main_length), 128129#(<= (+ main_offset 864) main_length), 128128#(<= (+ main_offset 868) main_length), 128131#(<= (+ main_offset 856) main_length), 128130#(<= (+ main_offset 860) main_length), 128133#(<= (+ main_offset 848) main_length), 128132#(<= (+ main_offset 852) main_length), 128135#(<= (+ main_offset 840) main_length), 128134#(<= (+ main_offset 844) main_length), 128137#(<= (+ main_offset 832) main_length), 128136#(<= (+ main_offset 836) main_length), 128139#(<= (+ main_offset 824) main_length), 128138#(<= (+ main_offset 828) main_length), 128141#(<= (+ main_offset 816) main_length), 128140#(<= (+ main_offset 820) main_length), 128143#(<= (+ main_offset 808) main_length), 128142#(<= (+ main_offset 812) main_length), 128145#(<= (+ main_offset 800) main_length), 128144#(<= (+ main_offset 804) main_length), 128147#(<= (+ main_offset 792) main_length), 128146#(<= (+ main_offset 796) main_length), 128149#(<= (+ main_offset 784) main_length), 128148#(<= (+ main_offset 788) main_length), 128151#(<= (+ main_offset 776) main_length), 128150#(<= (+ main_offset 780) main_length), 128153#(<= (+ main_offset 768) main_length), 128152#(<= (+ main_offset 772) main_length), 128155#(<= (+ main_offset 760) main_length), 128154#(<= (+ main_offset 764) main_length), 128157#(<= (+ main_offset 752) main_length), 128156#(<= (+ main_offset 756) main_length), 128159#(<= (+ main_offset 744) main_length), 128158#(<= (+ main_offset 748) main_length), 128161#(<= (+ main_offset 736) main_length), 128160#(<= (+ main_offset 740) main_length), 128163#(<= (+ main_offset 728) main_length), 128162#(<= (+ main_offset 732) main_length), 128165#(<= (+ main_offset 720) main_length), 128164#(<= (+ main_offset 724) main_length), 128167#(<= (+ main_offset 712) main_length), 128166#(<= (+ main_offset 716) main_length), 128169#(<= (+ main_offset 704) main_length), 128168#(<= (+ main_offset 708) main_length), 128171#(<= (+ main_offset 696) main_length), 128170#(<= (+ main_offset 700) main_length), 128173#(<= (+ main_offset 688) main_length), 128172#(<= (+ main_offset 692) main_length), 128175#(<= (+ main_offset 680) main_length), 128174#(<= (+ main_offset 684) main_length), 128177#(<= (+ main_offset 672) main_length), 128176#(<= (+ main_offset 676) main_length), 128179#(<= (+ main_offset 664) main_length), 128178#(<= (+ main_offset 668) main_length), 128181#(<= (+ main_offset 656) main_length), 128180#(<= (+ main_offset 660) main_length), 128183#(<= (+ main_offset 648) main_length), 128182#(<= (+ main_offset 652) main_length), 128185#(<= (+ main_offset 640) main_length), 128184#(<= (+ main_offset 644) main_length), 128187#(<= (+ main_offset 632) main_length), 128186#(<= (+ main_offset 636) main_length), 128189#(<= (+ main_offset 624) main_length), 128188#(<= (+ main_offset 628) main_length), 128191#(<= (+ main_offset 616) main_length), 128190#(<= (+ main_offset 620) main_length), 128193#(<= (+ main_offset 608) main_length), 128192#(<= (+ main_offset 612) main_length), 128195#(<= (+ main_offset 600) main_length), 128194#(<= (+ main_offset 604) main_length), 128197#(<= (+ main_offset 592) main_length), 128196#(<= (+ main_offset 596) main_length), 128199#(<= (+ main_offset 584) main_length), 128198#(<= (+ main_offset 588) main_length), 128201#(<= (+ main_offset 576) main_length), 128200#(<= (+ main_offset 580) main_length), 128203#(<= (+ main_offset 568) main_length), 128202#(<= (+ main_offset 572) main_length), 128205#(<= (+ main_offset 560) main_length), 128204#(<= (+ main_offset 564) main_length), 128207#(<= (+ main_offset 552) main_length), 128206#(<= (+ main_offset 556) main_length), 128209#(<= (+ main_offset 544) main_length), 128208#(<= (+ main_offset 548) main_length), 128211#(<= (+ main_offset 536) main_length), 128210#(<= (+ main_offset 540) main_length), 128213#(<= (+ main_offset 528) main_length), 128212#(<= (+ main_offset 532) main_length), 128215#(<= (+ main_offset 520) main_length), 128214#(<= (+ main_offset 524) main_length), 128217#(<= (+ main_offset 512) main_length), 128216#(<= (+ main_offset 516) main_length), 128219#(<= (+ main_offset 504) main_length), 128218#(<= (+ main_offset 508) main_length), 128221#(<= (+ main_offset 496) main_length), 128220#(<= (+ main_offset 500) main_length), 128223#(<= (+ main_offset 488) main_length), 128222#(<= (+ main_offset 492) main_length), 128225#(<= (+ main_offset 480) main_length), 128224#(<= (+ main_offset 484) main_length), 128227#(<= (+ main_offset 472) main_length), 128226#(<= (+ main_offset 476) main_length), 128229#(<= (+ main_offset 464) main_length), 128228#(<= (+ main_offset 468) main_length), 128231#(<= (+ main_offset 456) main_length), 128230#(<= (+ main_offset 460) main_length), 128233#(<= (+ main_offset 448) main_length), 128232#(<= (+ main_offset 452) main_length), 128235#(<= (+ main_offset 440) main_length), 128234#(<= (+ main_offset 444) main_length), 128237#(<= (+ main_offset 432) main_length), 128236#(<= (+ main_offset 436) main_length), 128239#(<= (+ main_offset 424) main_length), 128238#(<= (+ main_offset 428) main_length), 128241#(<= (+ main_offset 416) main_length), 128240#(<= (+ main_offset 420) main_length), 128243#(<= (+ main_offset 408) main_length), 128242#(<= (+ main_offset 412) main_length), 128245#(<= (+ main_offset 400) main_length), 128244#(<= (+ main_offset 404) main_length), 128247#(<= (+ main_offset 392) main_length), 128246#(<= (+ main_offset 396) main_length), 128249#(<= (+ main_offset 384) main_length), 128248#(<= (+ main_offset 388) main_length)] [2018-07-23 13:53:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 27722 backedges. 0 proven. 27722 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:22,386 INFO L450 AbstractCegarLoop]: Interpolant automaton has 169 states [2018-07-23 13:53:22,388 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 169 interpolants. [2018-07-23 13:53:22,388 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:53:22,389 INFO L87 Difference]: Start difference. First operand 336 states and 336 transitions. Second operand 169 states. [2018-07-23 13:53:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:23,351 INFO L93 Difference]: Finished difference Result 339 states and 339 transitions. [2018-07-23 13:53:23,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2018-07-23 13:53:23,351 INFO L78 Accepts]: Start accepts. Automaton has 169 states. Word has length 335 [2018-07-23 13:53:23,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:23,352 INFO L225 Difference]: With dead ends: 339 [2018-07-23 13:53:23,352 INFO L226 Difference]: Without dead ends: 338 [2018-07-23 13:53:23,353 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2018-07-23 13:53:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-07-23 13:53:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-07-23 13:53:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-07-23 13:53:23,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 338 transitions. [2018-07-23 13:53:23,357 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 338 transitions. Word has length 335 [2018-07-23 13:53:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:23,357 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 338 transitions. [2018-07-23 13:53:23,358 INFO L472 AbstractCegarLoop]: Interpolant automaton has 169 states. [2018-07-23 13:53:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 338 transitions. [2018-07-23 13:53:23,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-07-23 13:53:23,358 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:23,359 INFO L357 BasicCegarLoop]: trace histogram [168, 167, 1, 1] [2018-07-23 13:53:23,359 INFO L414 AbstractCegarLoop]: === Iteration 168 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:23,359 INFO L82 PathProgramCache]: Analyzing trace with hash -444835474, now seen corresponding path program 167 times [2018-07-23 13:53:23,359 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 28056 backedges. 0 proven. 28056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,420 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:24,420 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2018-07-23 13:53:24,420 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,420 INFO L185 omatonBuilderFactory]: Interpolants [129605#false, 129604#true, 129607#(<= (+ main_offset 1044) main_length), 129606#(<= (+ main_offset 1048) main_length), 129609#(<= (+ main_offset 1036) main_length), 129608#(<= (+ main_offset 1040) main_length), 129611#(<= (+ main_offset 1028) main_length), 129610#(<= (+ main_offset 1032) main_length), 129613#(<= (+ main_offset 1020) main_length), 129612#(<= (+ main_offset 1024) main_length), 129615#(<= (+ main_offset 1012) main_length), 129614#(<= (+ main_offset 1016) main_length), 129617#(<= (+ main_offset 1004) main_length), 129616#(<= (+ main_offset 1008) main_length), 129619#(<= (+ main_offset 996) main_length), 129618#(<= (+ main_offset 1000) main_length), 129621#(<= (+ main_offset 988) main_length), 129620#(<= (+ main_offset 992) main_length), 129623#(<= (+ main_offset 980) main_length), 129622#(<= (+ main_offset 984) main_length), 129625#(<= (+ main_offset 972) main_length), 129624#(<= (+ main_offset 976) main_length), 129627#(<= (+ main_offset 964) main_length), 129626#(<= (+ main_offset 968) main_length), 129629#(<= (+ main_offset 956) main_length), 129628#(<= (+ main_offset 960) main_length), 129631#(<= (+ main_offset 948) main_length), 129630#(<= (+ main_offset 952) main_length), 129633#(<= (+ main_offset 940) main_length), 129632#(<= (+ main_offset 944) main_length), 129635#(<= (+ main_offset 932) main_length), 129634#(<= (+ main_offset 936) main_length), 129637#(<= (+ main_offset 924) main_length), 129636#(<= (+ main_offset 928) main_length), 129639#(<= (+ main_offset 916) main_length), 129638#(<= (+ main_offset 920) main_length), 129641#(<= (+ main_offset 908) main_length), 129640#(<= (+ main_offset 912) main_length), 129643#(<= (+ main_offset 900) main_length), 129642#(<= (+ main_offset 904) main_length), 129645#(<= (+ main_offset 892) main_length), 129644#(<= (+ main_offset 896) main_length), 129647#(<= (+ main_offset 884) main_length), 129646#(<= (+ main_offset 888) main_length), 129649#(<= (+ main_offset 876) main_length), 129648#(<= (+ main_offset 880) main_length), 129651#(<= (+ main_offset 868) main_length), 129650#(<= (+ main_offset 872) main_length), 129653#(<= (+ main_offset 860) main_length), 129652#(<= (+ main_offset 864) main_length), 129655#(<= (+ main_offset 852) main_length), 129654#(<= (+ main_offset 856) main_length), 129657#(<= (+ main_offset 844) main_length), 129656#(<= (+ main_offset 848) main_length), 129659#(<= (+ main_offset 836) main_length), 129658#(<= (+ main_offset 840) main_length), 129661#(<= (+ main_offset 828) main_length), 129660#(<= (+ main_offset 832) main_length), 129663#(<= (+ main_offset 820) main_length), 129662#(<= (+ main_offset 824) main_length), 129665#(<= (+ main_offset 812) main_length), 129664#(<= (+ main_offset 816) main_length), 129667#(<= (+ main_offset 804) main_length), 129666#(<= (+ main_offset 808) main_length), 129669#(<= (+ main_offset 796) main_length), 129668#(<= (+ main_offset 800) main_length), 129671#(<= (+ main_offset 788) main_length), 129670#(<= (+ main_offset 792) main_length), 129673#(<= (+ main_offset 780) main_length), 129672#(<= (+ main_offset 784) main_length), 129675#(<= (+ main_offset 772) main_length), 129674#(<= (+ main_offset 776) main_length), 129677#(<= (+ main_offset 764) main_length), 129676#(<= (+ main_offset 768) main_length), 129679#(<= (+ main_offset 756) main_length), 129678#(<= (+ main_offset 760) main_length), 129681#(<= (+ main_offset 748) main_length), 129680#(<= (+ main_offset 752) main_length), 129683#(<= (+ main_offset 740) main_length), 129682#(<= (+ main_offset 744) main_length), 129685#(<= (+ main_offset 732) main_length), 129684#(<= (+ main_offset 736) main_length), 129687#(<= (+ main_offset 724) main_length), 129686#(<= (+ main_offset 728) main_length), 129689#(<= (+ main_offset 716) main_length), 129688#(<= (+ main_offset 720) main_length), 129691#(<= (+ main_offset 708) main_length), 129690#(<= (+ main_offset 712) main_length), 129693#(<= (+ main_offset 700) main_length), 129692#(<= (+ main_offset 704) main_length), 129695#(<= (+ main_offset 692) main_length), 129694#(<= (+ main_offset 696) main_length), 129697#(<= (+ main_offset 684) main_length), 129696#(<= (+ main_offset 688) main_length), 129699#(<= (+ main_offset 676) main_length), 129698#(<= (+ main_offset 680) main_length), 129701#(<= (+ main_offset 668) main_length), 129700#(<= (+ main_offset 672) main_length), 129703#(<= (+ main_offset 660) main_length), 129702#(<= (+ main_offset 664) main_length), 129705#(<= (+ main_offset 652) main_length), 129704#(<= (+ main_offset 656) main_length), 129707#(<= (+ main_offset 644) main_length), 129706#(<= (+ main_offset 648) main_length), 129709#(<= (+ main_offset 636) main_length), 129708#(<= (+ main_offset 640) main_length), 129711#(<= (+ main_offset 628) main_length), 129710#(<= (+ main_offset 632) main_length), 129713#(<= (+ main_offset 620) main_length), 129712#(<= (+ main_offset 624) main_length), 129715#(<= (+ main_offset 612) main_length), 129714#(<= (+ main_offset 616) main_length), 129717#(<= (+ main_offset 604) main_length), 129716#(<= (+ main_offset 608) main_length), 129719#(<= (+ main_offset 596) main_length), 129718#(<= (+ main_offset 600) main_length), 129721#(<= (+ main_offset 588) main_length), 129720#(<= (+ main_offset 592) main_length), 129723#(<= (+ main_offset 580) main_length), 129722#(<= (+ main_offset 584) main_length), 129725#(<= (+ main_offset 572) main_length), 129724#(<= (+ main_offset 576) main_length), 129727#(<= (+ main_offset 564) main_length), 129726#(<= (+ main_offset 568) main_length), 129729#(<= (+ main_offset 556) main_length), 129728#(<= (+ main_offset 560) main_length), 129731#(<= (+ main_offset 548) main_length), 129730#(<= (+ main_offset 552) main_length), 129733#(<= (+ main_offset 540) main_length), 129732#(<= (+ main_offset 544) main_length), 129735#(<= (+ main_offset 532) main_length), 129734#(<= (+ main_offset 536) main_length), 129737#(<= (+ main_offset 524) main_length), 129736#(<= (+ main_offset 528) main_length), 129739#(<= (+ main_offset 516) main_length), 129738#(<= (+ main_offset 520) main_length), 129741#(<= (+ main_offset 508) main_length), 129740#(<= (+ main_offset 512) main_length), 129743#(<= (+ main_offset 500) main_length), 129742#(<= (+ main_offset 504) main_length), 129745#(<= (+ main_offset 492) main_length), 129744#(<= (+ main_offset 496) main_length), 129747#(<= (+ main_offset 484) main_length), 129746#(<= (+ main_offset 488) main_length), 129749#(<= (+ main_offset 476) main_length), 129748#(<= (+ main_offset 480) main_length), 129751#(<= (+ main_offset 468) main_length), 129750#(<= (+ main_offset 472) main_length), 129753#(<= (+ main_offset 460) main_length), 129752#(<= (+ main_offset 464) main_length), 129755#(<= (+ main_offset 452) main_length), 129754#(<= (+ main_offset 456) main_length), 129757#(<= (+ main_offset 444) main_length), 129756#(<= (+ main_offset 448) main_length), 129759#(<= (+ main_offset 436) main_length), 129758#(<= (+ main_offset 440) main_length), 129761#(<= (+ main_offset 428) main_length), 129760#(<= (+ main_offset 432) main_length), 129763#(<= (+ main_offset 420) main_length), 129762#(<= (+ main_offset 424) main_length), 129765#(<= (+ main_offset 412) main_length), 129764#(<= (+ main_offset 416) main_length), 129767#(<= (+ main_offset 404) main_length), 129766#(<= (+ main_offset 408) main_length), 129769#(<= (+ main_offset 396) main_length), 129768#(<= (+ main_offset 400) main_length), 129771#(<= (+ main_offset 388) main_length), 129770#(<= (+ main_offset 392) main_length), 129773#(<= (+ main_offset 380) main_length), 129772#(<= (+ main_offset 384) main_length)] [2018-07-23 13:53:24,422 INFO L134 CoverageAnalysis]: Checked inductivity of 28056 backedges. 0 proven. 28056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:24,422 INFO L450 AbstractCegarLoop]: Interpolant automaton has 170 states [2018-07-23 13:53:24,424 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 170 interpolants. [2018-07-23 13:53:24,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:53:24,425 INFO L87 Difference]: Start difference. First operand 338 states and 338 transitions. Second operand 170 states. [2018-07-23 13:53:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:25,391 INFO L93 Difference]: Finished difference Result 341 states and 341 transitions. [2018-07-23 13:53:25,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2018-07-23 13:53:25,391 INFO L78 Accepts]: Start accepts. Automaton has 170 states. Word has length 337 [2018-07-23 13:53:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:25,392 INFO L225 Difference]: With dead ends: 341 [2018-07-23 13:53:25,392 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 13:53:25,393 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2018-07-23 13:53:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 13:53:25,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 13:53:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 13:53:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 340 transitions. [2018-07-23 13:53:25,397 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 340 transitions. Word has length 337 [2018-07-23 13:53:25,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:25,397 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 340 transitions. [2018-07-23 13:53:25,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 170 states. [2018-07-23 13:53:25,397 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 340 transitions. [2018-07-23 13:53:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-07-23 13:53:25,398 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:25,398 INFO L357 BasicCegarLoop]: trace histogram [169, 168, 1, 1] [2018-07-23 13:53:25,399 INFO L414 AbstractCegarLoop]: === Iteration 169 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:25,399 INFO L82 PathProgramCache]: Analyzing trace with hash 2009840176, now seen corresponding path program 168 times [2018-07-23 13:53:25,399 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 28392 backedges. 0 proven. 28392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:26,441 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:26,441 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2018-07-23 13:53:26,441 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:26,442 INFO L185 omatonBuilderFactory]: Interpolants [131138#(<= (+ main_offset 1048) main_length), 131139#(<= (+ main_offset 1044) main_length), 131136#true, 131137#false, 131142#(<= (+ main_offset 1032) main_length), 131143#(<= (+ main_offset 1028) main_length), 131140#(<= (+ main_offset 1040) main_length), 131141#(<= (+ main_offset 1036) main_length), 131146#(<= (+ main_offset 1016) main_length), 131147#(<= (+ main_offset 1012) main_length), 131144#(<= (+ main_offset 1024) main_length), 131145#(<= (+ main_offset 1020) main_length), 131150#(<= (+ main_offset 1000) main_length), 131151#(<= (+ main_offset 996) main_length), 131148#(<= (+ main_offset 1008) main_length), 131149#(<= (+ main_offset 1004) main_length), 131154#(<= (+ main_offset 984) main_length), 131155#(<= (+ main_offset 980) main_length), 131152#(<= (+ main_offset 992) main_length), 131153#(<= (+ main_offset 988) main_length), 131158#(<= (+ main_offset 968) main_length), 131159#(<= (+ main_offset 964) main_length), 131156#(<= (+ main_offset 976) main_length), 131157#(<= (+ main_offset 972) main_length), 131162#(<= (+ main_offset 952) main_length), 131163#(<= (+ main_offset 948) main_length), 131160#(<= (+ main_offset 960) main_length), 131161#(<= (+ main_offset 956) main_length), 131166#(<= (+ main_offset 936) main_length), 131167#(<= (+ main_offset 932) main_length), 131164#(<= (+ main_offset 944) main_length), 131165#(<= (+ main_offset 940) main_length), 131170#(<= (+ main_offset 920) main_length), 131171#(<= (+ main_offset 916) main_length), 131168#(<= (+ main_offset 928) main_length), 131169#(<= (+ main_offset 924) main_length), 131174#(<= (+ main_offset 904) main_length), 131175#(<= (+ main_offset 900) main_length), 131172#(<= (+ main_offset 912) main_length), 131173#(<= (+ main_offset 908) main_length), 131178#(<= (+ main_offset 888) main_length), 131179#(<= (+ main_offset 884) main_length), 131176#(<= (+ main_offset 896) main_length), 131177#(<= (+ main_offset 892) main_length), 131182#(<= (+ main_offset 872) main_length), 131183#(<= (+ main_offset 868) main_length), 131180#(<= (+ main_offset 880) main_length), 131181#(<= (+ main_offset 876) main_length), 131186#(<= (+ main_offset 856) main_length), 131187#(<= (+ main_offset 852) main_length), 131184#(<= (+ main_offset 864) main_length), 131185#(<= (+ main_offset 860) main_length), 131190#(<= (+ main_offset 840) main_length), 131191#(<= (+ main_offset 836) main_length), 131188#(<= (+ main_offset 848) main_length), 131189#(<= (+ main_offset 844) main_length), 131194#(<= (+ main_offset 824) main_length), 131195#(<= (+ main_offset 820) main_length), 131192#(<= (+ main_offset 832) main_length), 131193#(<= (+ main_offset 828) main_length), 131198#(<= (+ main_offset 808) main_length), 131199#(<= (+ main_offset 804) main_length), 131196#(<= (+ main_offset 816) main_length), 131197#(<= (+ main_offset 812) main_length), 131202#(<= (+ main_offset 792) main_length), 131203#(<= (+ main_offset 788) main_length), 131200#(<= (+ main_offset 800) main_length), 131201#(<= (+ main_offset 796) main_length), 131206#(<= (+ main_offset 776) main_length), 131207#(<= (+ main_offset 772) main_length), 131204#(<= (+ main_offset 784) main_length), 131205#(<= (+ main_offset 780) main_length), 131210#(<= (+ main_offset 760) main_length), 131211#(<= (+ main_offset 756) main_length), 131208#(<= (+ main_offset 768) main_length), 131209#(<= (+ main_offset 764) main_length), 131214#(<= (+ main_offset 744) main_length), 131215#(<= (+ main_offset 740) main_length), 131212#(<= (+ main_offset 752) main_length), 131213#(<= (+ main_offset 748) main_length), 131218#(<= (+ main_offset 728) main_length), 131219#(<= (+ main_offset 724) main_length), 131216#(<= (+ main_offset 736) main_length), 131217#(<= (+ main_offset 732) main_length), 131222#(<= (+ main_offset 712) main_length), 131223#(<= (+ main_offset 708) main_length), 131220#(<= (+ main_offset 720) main_length), 131221#(<= (+ main_offset 716) main_length), 131226#(<= (+ main_offset 696) main_length), 131227#(<= (+ main_offset 692) main_length), 131224#(<= (+ main_offset 704) main_length), 131225#(<= (+ main_offset 700) main_length), 131230#(<= (+ main_offset 680) main_length), 131231#(<= (+ main_offset 676) main_length), 131228#(<= (+ main_offset 688) main_length), 131229#(<= (+ main_offset 684) main_length), 131234#(<= (+ main_offset 664) main_length), 131235#(<= (+ main_offset 660) main_length), 131232#(<= (+ main_offset 672) main_length), 131233#(<= (+ main_offset 668) main_length), 131238#(<= (+ main_offset 648) main_length), 131239#(<= (+ main_offset 644) main_length), 131236#(<= (+ main_offset 656) main_length), 131237#(<= (+ main_offset 652) main_length), 131242#(<= (+ main_offset 632) main_length), 131243#(<= (+ main_offset 628) main_length), 131240#(<= (+ main_offset 640) main_length), 131241#(<= (+ main_offset 636) main_length), 131246#(<= (+ main_offset 616) main_length), 131247#(<= (+ main_offset 612) main_length), 131244#(<= (+ main_offset 624) main_length), 131245#(<= (+ main_offset 620) main_length), 131250#(<= (+ main_offset 600) main_length), 131251#(<= (+ main_offset 596) main_length), 131248#(<= (+ main_offset 608) main_length), 131249#(<= (+ main_offset 604) main_length), 131254#(<= (+ main_offset 584) main_length), 131255#(<= (+ main_offset 580) main_length), 131252#(<= (+ main_offset 592) main_length), 131253#(<= (+ main_offset 588) main_length), 131258#(<= (+ main_offset 568) main_length), 131259#(<= (+ main_offset 564) main_length), 131256#(<= (+ main_offset 576) main_length), 131257#(<= (+ main_offset 572) main_length), 131262#(<= (+ main_offset 552) main_length), 131263#(<= (+ main_offset 548) main_length), 131260#(<= (+ main_offset 560) main_length), 131261#(<= (+ main_offset 556) main_length), 131266#(<= (+ main_offset 536) main_length), 131267#(<= (+ main_offset 532) main_length), 131264#(<= (+ main_offset 544) main_length), 131265#(<= (+ main_offset 540) main_length), 131270#(<= (+ main_offset 520) main_length), 131271#(<= (+ main_offset 516) main_length), 131268#(<= (+ main_offset 528) main_length), 131269#(<= (+ main_offset 524) main_length), 131274#(<= (+ main_offset 504) main_length), 131275#(<= (+ main_offset 500) main_length), 131272#(<= (+ main_offset 512) main_length), 131273#(<= (+ main_offset 508) main_length), 131278#(<= (+ main_offset 488) main_length), 131279#(<= (+ main_offset 484) main_length), 131276#(<= (+ main_offset 496) main_length), 131277#(<= (+ main_offset 492) main_length), 131282#(<= (+ main_offset 472) main_length), 131283#(<= (+ main_offset 468) main_length), 131280#(<= (+ main_offset 480) main_length), 131281#(<= (+ main_offset 476) main_length), 131286#(<= (+ main_offset 456) main_length), 131287#(<= (+ main_offset 452) main_length), 131284#(<= (+ main_offset 464) main_length), 131285#(<= (+ main_offset 460) main_length), 131290#(<= (+ main_offset 440) main_length), 131291#(<= (+ main_offset 436) main_length), 131288#(<= (+ main_offset 448) main_length), 131289#(<= (+ main_offset 444) main_length), 131294#(<= (+ main_offset 424) main_length), 131295#(<= (+ main_offset 420) main_length), 131292#(<= (+ main_offset 432) main_length), 131293#(<= (+ main_offset 428) main_length), 131298#(<= (+ main_offset 408) main_length), 131299#(<= (+ main_offset 404) main_length), 131296#(<= (+ main_offset 416) main_length), 131297#(<= (+ main_offset 412) main_length), 131302#(<= (+ main_offset 392) main_length), 131303#(<= (+ main_offset 388) main_length), 131300#(<= (+ main_offset 400) main_length), 131301#(<= (+ main_offset 396) main_length), 131306#(<= (+ main_offset 376) main_length), 131304#(<= (+ main_offset 384) main_length), 131305#(<= (+ main_offset 380) main_length)] [2018-07-23 13:53:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 28392 backedges. 0 proven. 28392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:26,443 INFO L450 AbstractCegarLoop]: Interpolant automaton has 171 states [2018-07-23 13:53:26,445 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2018-07-23 13:53:26,445 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:53:26,445 INFO L87 Difference]: Start difference. First operand 340 states and 340 transitions. Second operand 171 states. [2018-07-23 13:53:27,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:27,416 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2018-07-23 13:53:27,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2018-07-23 13:53:27,416 INFO L78 Accepts]: Start accepts. Automaton has 171 states. Word has length 339 [2018-07-23 13:53:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:27,417 INFO L225 Difference]: With dead ends: 343 [2018-07-23 13:53:27,417 INFO L226 Difference]: Without dead ends: 342 [2018-07-23 13:53:27,418 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2018-07-23 13:53:27,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-07-23 13:53:27,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2018-07-23 13:53:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-07-23 13:53:27,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2018-07-23 13:53:27,422 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 339 [2018-07-23 13:53:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:27,422 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2018-07-23 13:53:27,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 171 states. [2018-07-23 13:53:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2018-07-23 13:53:27,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-07-23 13:53:27,423 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:27,423 INFO L357 BasicCegarLoop]: trace histogram [170, 169, 1, 1] [2018-07-23 13:53:27,424 INFO L414 AbstractCegarLoop]: === Iteration 170 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:27,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1278872974, now seen corresponding path program 169 times [2018-07-23 13:53:27,424 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 28730 backedges. 0 proven. 28730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:28,452 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:28,452 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2018-07-23 13:53:28,452 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:28,452 INFO L185 omatonBuilderFactory]: Interpolants [132678#false, 132679#(<= (+ main_offset 1048) main_length), 132677#true, 132682#(<= (+ main_offset 1036) main_length), 132683#(<= (+ main_offset 1032) main_length), 132680#(<= (+ main_offset 1044) main_length), 132681#(<= (+ main_offset 1040) main_length), 132686#(<= (+ main_offset 1020) main_length), 132687#(<= (+ main_offset 1016) main_length), 132684#(<= (+ main_offset 1028) main_length), 132685#(<= (+ main_offset 1024) main_length), 132690#(<= (+ main_offset 1004) main_length), 132691#(<= (+ main_offset 1000) main_length), 132688#(<= (+ main_offset 1012) main_length), 132689#(<= (+ main_offset 1008) main_length), 132694#(<= (+ main_offset 988) main_length), 132695#(<= (+ main_offset 984) main_length), 132692#(<= (+ main_offset 996) main_length), 132693#(<= (+ main_offset 992) main_length), 132698#(<= (+ main_offset 972) main_length), 132699#(<= (+ main_offset 968) main_length), 132696#(<= (+ main_offset 980) main_length), 132697#(<= (+ main_offset 976) main_length), 132702#(<= (+ main_offset 956) main_length), 132703#(<= (+ main_offset 952) main_length), 132700#(<= (+ main_offset 964) main_length), 132701#(<= (+ main_offset 960) main_length), 132706#(<= (+ main_offset 940) main_length), 132707#(<= (+ main_offset 936) main_length), 132704#(<= (+ main_offset 948) main_length), 132705#(<= (+ main_offset 944) main_length), 132710#(<= (+ main_offset 924) main_length), 132711#(<= (+ main_offset 920) main_length), 132708#(<= (+ main_offset 932) main_length), 132709#(<= (+ main_offset 928) main_length), 132714#(<= (+ main_offset 908) main_length), 132715#(<= (+ main_offset 904) main_length), 132712#(<= (+ main_offset 916) main_length), 132713#(<= (+ main_offset 912) main_length), 132718#(<= (+ main_offset 892) main_length), 132719#(<= (+ main_offset 888) main_length), 132716#(<= (+ main_offset 900) main_length), 132717#(<= (+ main_offset 896) main_length), 132722#(<= (+ main_offset 876) main_length), 132723#(<= (+ main_offset 872) main_length), 132720#(<= (+ main_offset 884) main_length), 132721#(<= (+ main_offset 880) main_length), 132726#(<= (+ main_offset 860) main_length), 132727#(<= (+ main_offset 856) main_length), 132724#(<= (+ main_offset 868) main_length), 132725#(<= (+ main_offset 864) main_length), 132730#(<= (+ main_offset 844) main_length), 132731#(<= (+ main_offset 840) main_length), 132728#(<= (+ main_offset 852) main_length), 132729#(<= (+ main_offset 848) main_length), 132734#(<= (+ main_offset 828) main_length), 132735#(<= (+ main_offset 824) main_length), 132732#(<= (+ main_offset 836) main_length), 132733#(<= (+ main_offset 832) main_length), 132738#(<= (+ main_offset 812) main_length), 132739#(<= (+ main_offset 808) main_length), 132736#(<= (+ main_offset 820) main_length), 132737#(<= (+ main_offset 816) main_length), 132742#(<= (+ main_offset 796) main_length), 132743#(<= (+ main_offset 792) main_length), 132740#(<= (+ main_offset 804) main_length), 132741#(<= (+ main_offset 800) main_length), 132746#(<= (+ main_offset 780) main_length), 132747#(<= (+ main_offset 776) main_length), 132744#(<= (+ main_offset 788) main_length), 132745#(<= (+ main_offset 784) main_length), 132750#(<= (+ main_offset 764) main_length), 132751#(<= (+ main_offset 760) main_length), 132748#(<= (+ main_offset 772) main_length), 132749#(<= (+ main_offset 768) main_length), 132754#(<= (+ main_offset 748) main_length), 132755#(<= (+ main_offset 744) main_length), 132752#(<= (+ main_offset 756) main_length), 132753#(<= (+ main_offset 752) main_length), 132758#(<= (+ main_offset 732) main_length), 132759#(<= (+ main_offset 728) main_length), 132756#(<= (+ main_offset 740) main_length), 132757#(<= (+ main_offset 736) main_length), 132762#(<= (+ main_offset 716) main_length), 132763#(<= (+ main_offset 712) main_length), 132760#(<= (+ main_offset 724) main_length), 132761#(<= (+ main_offset 720) main_length), 132766#(<= (+ main_offset 700) main_length), 132767#(<= (+ main_offset 696) main_length), 132764#(<= (+ main_offset 708) main_length), 132765#(<= (+ main_offset 704) main_length), 132770#(<= (+ main_offset 684) main_length), 132771#(<= (+ main_offset 680) main_length), 132768#(<= (+ main_offset 692) main_length), 132769#(<= (+ main_offset 688) main_length), 132774#(<= (+ main_offset 668) main_length), 132775#(<= (+ main_offset 664) main_length), 132772#(<= (+ main_offset 676) main_length), 132773#(<= (+ main_offset 672) main_length), 132778#(<= (+ main_offset 652) main_length), 132779#(<= (+ main_offset 648) main_length), 132776#(<= (+ main_offset 660) main_length), 132777#(<= (+ main_offset 656) main_length), 132782#(<= (+ main_offset 636) main_length), 132783#(<= (+ main_offset 632) main_length), 132780#(<= (+ main_offset 644) main_length), 132781#(<= (+ main_offset 640) main_length), 132786#(<= (+ main_offset 620) main_length), 132787#(<= (+ main_offset 616) main_length), 132784#(<= (+ main_offset 628) main_length), 132785#(<= (+ main_offset 624) main_length), 132790#(<= (+ main_offset 604) main_length), 132791#(<= (+ main_offset 600) main_length), 132788#(<= (+ main_offset 612) main_length), 132789#(<= (+ main_offset 608) main_length), 132794#(<= (+ main_offset 588) main_length), 132795#(<= (+ main_offset 584) main_length), 132792#(<= (+ main_offset 596) main_length), 132793#(<= (+ main_offset 592) main_length), 132798#(<= (+ main_offset 572) main_length), 132799#(<= (+ main_offset 568) main_length), 132796#(<= (+ main_offset 580) main_length), 132797#(<= (+ main_offset 576) main_length), 132802#(<= (+ main_offset 556) main_length), 132803#(<= (+ main_offset 552) main_length), 132800#(<= (+ main_offset 564) main_length), 132801#(<= (+ main_offset 560) main_length), 132806#(<= (+ main_offset 540) main_length), 132807#(<= (+ main_offset 536) main_length), 132804#(<= (+ main_offset 548) main_length), 132805#(<= (+ main_offset 544) main_length), 132810#(<= (+ main_offset 524) main_length), 132811#(<= (+ main_offset 520) main_length), 132808#(<= (+ main_offset 532) main_length), 132809#(<= (+ main_offset 528) main_length), 132814#(<= (+ main_offset 508) main_length), 132815#(<= (+ main_offset 504) main_length), 132812#(<= (+ main_offset 516) main_length), 132813#(<= (+ main_offset 512) main_length), 132818#(<= (+ main_offset 492) main_length), 132819#(<= (+ main_offset 488) main_length), 132816#(<= (+ main_offset 500) main_length), 132817#(<= (+ main_offset 496) main_length), 132822#(<= (+ main_offset 476) main_length), 132823#(<= (+ main_offset 472) main_length), 132820#(<= (+ main_offset 484) main_length), 132821#(<= (+ main_offset 480) main_length), 132826#(<= (+ main_offset 460) main_length), 132827#(<= (+ main_offset 456) main_length), 132824#(<= (+ main_offset 468) main_length), 132825#(<= (+ main_offset 464) main_length), 132830#(<= (+ main_offset 444) main_length), 132831#(<= (+ main_offset 440) main_length), 132828#(<= (+ main_offset 452) main_length), 132829#(<= (+ main_offset 448) main_length), 132834#(<= (+ main_offset 428) main_length), 132835#(<= (+ main_offset 424) main_length), 132832#(<= (+ main_offset 436) main_length), 132833#(<= (+ main_offset 432) main_length), 132838#(<= (+ main_offset 412) main_length), 132839#(<= (+ main_offset 408) main_length), 132836#(<= (+ main_offset 420) main_length), 132837#(<= (+ main_offset 416) main_length), 132842#(<= (+ main_offset 396) main_length), 132843#(<= (+ main_offset 392) main_length), 132840#(<= (+ main_offset 404) main_length), 132841#(<= (+ main_offset 400) main_length), 132846#(<= (+ main_offset 380) main_length), 132847#(<= (+ main_offset 376) main_length), 132844#(<= (+ main_offset 388) main_length), 132845#(<= (+ main_offset 384) main_length), 132848#(<= (+ main_offset 372) main_length)] [2018-07-23 13:53:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 28730 backedges. 0 proven. 28730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:28,454 INFO L450 AbstractCegarLoop]: Interpolant automaton has 172 states [2018-07-23 13:53:28,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2018-07-23 13:53:28,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:53:28,457 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand 172 states. [2018-07-23 13:53:29,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:29,495 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2018-07-23 13:53:29,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2018-07-23 13:53:29,495 INFO L78 Accepts]: Start accepts. Automaton has 172 states. Word has length 341 [2018-07-23 13:53:29,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:29,496 INFO L225 Difference]: With dead ends: 345 [2018-07-23 13:53:29,496 INFO L226 Difference]: Without dead ends: 344 [2018-07-23 13:53:29,498 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2018-07-23 13:53:29,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2018-07-23 13:53:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2018-07-23 13:53:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-07-23 13:53:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 344 transitions. [2018-07-23 13:53:29,502 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 344 transitions. Word has length 341 [2018-07-23 13:53:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:29,502 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 344 transitions. [2018-07-23 13:53:29,502 INFO L472 AbstractCegarLoop]: Interpolant automaton has 172 states. [2018-07-23 13:53:29,502 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 344 transitions. [2018-07-23 13:53:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-07-23 13:53:29,503 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:29,503 INFO L357 BasicCegarLoop]: trace histogram [171, 170, 1, 1] [2018-07-23 13:53:29,503 INFO L414 AbstractCegarLoop]: === Iteration 171 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:29,503 INFO L82 PathProgramCache]: Analyzing trace with hash -636280268, now seen corresponding path program 170 times [2018-07-23 13:53:29,503 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:30,589 INFO L134 CoverageAnalysis]: Checked inductivity of 29070 backedges. 0 proven. 29070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,589 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:30,589 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2018-07-23 13:53:30,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:30,590 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 13:53:30,590 INFO L185 omatonBuilderFactory]: Interpolants [134227#true, 134230#(<= (+ main_offset 1044) main_length), 134231#(<= (+ main_offset 1040) main_length), 134228#false, 134229#(<= (+ main_offset 1048) main_length), 134234#(<= (+ main_offset 1028) main_length), 134235#(<= (+ main_offset 1024) main_length), 134232#(<= (+ main_offset 1036) main_length), 134233#(<= (+ main_offset 1032) main_length), 134238#(<= (+ main_offset 1012) main_length), 134239#(<= (+ main_offset 1008) main_length), 134236#(<= (+ main_offset 1020) main_length), 134237#(<= (+ main_offset 1016) main_length), 134242#(<= (+ main_offset 996) main_length), 134243#(<= (+ main_offset 992) main_length), 134240#(<= (+ main_offset 1004) main_length), 134241#(<= (+ main_offset 1000) main_length), 134246#(<= (+ main_offset 980) main_length), 134247#(<= (+ main_offset 976) main_length), 134244#(<= (+ main_offset 988) main_length), 134245#(<= (+ main_offset 984) main_length), 134250#(<= (+ main_offset 964) main_length), 134251#(<= (+ main_offset 960) main_length), 134248#(<= (+ main_offset 972) main_length), 134249#(<= (+ main_offset 968) main_length), 134254#(<= (+ main_offset 948) main_length), 134255#(<= (+ main_offset 944) main_length), 134252#(<= (+ main_offset 956) main_length), 134253#(<= (+ main_offset 952) main_length), 134258#(<= (+ main_offset 932) main_length), 134259#(<= (+ main_offset 928) main_length), 134256#(<= (+ main_offset 940) main_length), 134257#(<= (+ main_offset 936) main_length), 134262#(<= (+ main_offset 916) main_length), 134263#(<= (+ main_offset 912) main_length), 134260#(<= (+ main_offset 924) main_length), 134261#(<= (+ main_offset 920) main_length), 134266#(<= (+ main_offset 900) main_length), 134267#(<= (+ main_offset 896) main_length), 134264#(<= (+ main_offset 908) main_length), 134265#(<= (+ main_offset 904) main_length), 134270#(<= (+ main_offset 884) main_length), 134271#(<= (+ main_offset 880) main_length), 134268#(<= (+ main_offset 892) main_length), 134269#(<= (+ main_offset 888) main_length), 134274#(<= (+ main_offset 868) main_length), 134275#(<= (+ main_offset 864) main_length), 134272#(<= (+ main_offset 876) main_length), 134273#(<= (+ main_offset 872) main_length), 134278#(<= (+ main_offset 852) main_length), 134279#(<= (+ main_offset 848) main_length), 134276#(<= (+ main_offset 860) main_length), 134277#(<= (+ main_offset 856) main_length), 134282#(<= (+ main_offset 836) main_length), 134283#(<= (+ main_offset 832) main_length), 134280#(<= (+ main_offset 844) main_length), 134281#(<= (+ main_offset 840) main_length), 134286#(<= (+ main_offset 820) main_length), 134287#(<= (+ main_offset 816) main_length), 134284#(<= (+ main_offset 828) main_length), 134285#(<= (+ main_offset 824) main_length), 134290#(<= (+ main_offset 804) main_length), 134291#(<= (+ main_offset 800) main_length), 134288#(<= (+ main_offset 812) main_length), 134289#(<= (+ main_offset 808) main_length), 134294#(<= (+ main_offset 788) main_length), 134295#(<= (+ main_offset 784) main_length), 134292#(<= (+ main_offset 796) main_length), 134293#(<= (+ main_offset 792) main_length), 134298#(<= (+ main_offset 772) main_length), 134299#(<= (+ main_offset 768) main_length), 134296#(<= (+ main_offset 780) main_length), 134297#(<= (+ main_offset 776) main_length), 134302#(<= (+ main_offset 756) main_length), 134303#(<= (+ main_offset 752) main_length), 134300#(<= (+ main_offset 764) main_length), 134301#(<= (+ main_offset 760) main_length), 134306#(<= (+ main_offset 740) main_length), 134307#(<= (+ main_offset 736) main_length), 134304#(<= (+ main_offset 748) main_length), 134305#(<= (+ main_offset 744) main_length), 134310#(<= (+ main_offset 724) main_length), 134311#(<= (+ main_offset 720) main_length), 134308#(<= (+ main_offset 732) main_length), 134309#(<= (+ main_offset 728) main_length), 134314#(<= (+ main_offset 708) main_length), 134315#(<= (+ main_offset 704) main_length), 134312#(<= (+ main_offset 716) main_length), 134313#(<= (+ main_offset 712) main_length), 134318#(<= (+ main_offset 692) main_length), 134319#(<= (+ main_offset 688) main_length), 134316#(<= (+ main_offset 700) main_length), 134317#(<= (+ main_offset 696) main_length), 134322#(<= (+ main_offset 676) main_length), 134323#(<= (+ main_offset 672) main_length), 134320#(<= (+ main_offset 684) main_length), 134321#(<= (+ main_offset 680) main_length), 134326#(<= (+ main_offset 660) main_length), 134327#(<= (+ main_offset 656) main_length), 134324#(<= (+ main_offset 668) main_length), 134325#(<= (+ main_offset 664) main_length), 134330#(<= (+ main_offset 644) main_length), 134331#(<= (+ main_offset 640) main_length), 134328#(<= (+ main_offset 652) main_length), 134329#(<= (+ main_offset 648) main_length), 134334#(<= (+ main_offset 628) main_length), 134335#(<= (+ main_offset 624) main_length), 134332#(<= (+ main_offset 636) main_length), 134333#(<= (+ main_offset 632) main_length), 134338#(<= (+ main_offset 612) main_length), 134339#(<= (+ main_offset 608) main_length), 134336#(<= (+ main_offset 620) main_length), 134337#(<= (+ main_offset 616) main_length), 134342#(<= (+ main_offset 596) main_length), 134343#(<= (+ main_offset 592) main_length), 134340#(<= (+ main_offset 604) main_length), 134341#(<= (+ main_offset 600) main_length), 134346#(<= (+ main_offset 580) main_length), 134347#(<= (+ main_offset 576) main_length), 134344#(<= (+ main_offset 588) main_length), 134345#(<= (+ main_offset 584) main_length), 134350#(<= (+ main_offset 564) main_length), 134351#(<= (+ main_offset 560) main_length), 134348#(<= (+ main_offset 572) main_length), 134349#(<= (+ main_offset 568) main_length), 134354#(<= (+ main_offset 548) main_length), 134355#(<= (+ main_offset 544) main_length), 134352#(<= (+ main_offset 556) main_length), 134353#(<= (+ main_offset 552) main_length), 134358#(<= (+ main_offset 532) main_length), 134359#(<= (+ main_offset 528) main_length), 134356#(<= (+ main_offset 540) main_length), 134357#(<= (+ main_offset 536) main_length), 134362#(<= (+ main_offset 516) main_length), 134363#(<= (+ main_offset 512) main_length), 134360#(<= (+ main_offset 524) main_length), 134361#(<= (+ main_offset 520) main_length), 134366#(<= (+ main_offset 500) main_length), 134367#(<= (+ main_offset 496) main_length), 134364#(<= (+ main_offset 508) main_length), 134365#(<= (+ main_offset 504) main_length), 134370#(<= (+ main_offset 484) main_length), 134371#(<= (+ main_offset 480) main_length), 134368#(<= (+ main_offset 492) main_length), 134369#(<= (+ main_offset 488) main_length), 134374#(<= (+ main_offset 468) main_length), 134375#(<= (+ main_offset 464) main_length), 134372#(<= (+ main_offset 476) main_length), 134373#(<= (+ main_offset 472) main_length), 134378#(<= (+ main_offset 452) main_length), 134379#(<= (+ main_offset 448) main_length), 134376#(<= (+ main_offset 460) main_length), 134377#(<= (+ main_offset 456) main_length), 134382#(<= (+ main_offset 436) main_length), 134383#(<= (+ main_offset 432) main_length), 134380#(<= (+ main_offset 444) main_length), 134381#(<= (+ main_offset 440) main_length), 134386#(<= (+ main_offset 420) main_length), 134387#(<= (+ main_offset 416) main_length), 134384#(<= (+ main_offset 428) main_length), 134385#(<= (+ main_offset 424) main_length), 134390#(<= (+ main_offset 404) main_length), 134391#(<= (+ main_offset 400) main_length), 134388#(<= (+ main_offset 412) main_length), 134389#(<= (+ main_offset 408) main_length), 134394#(<= (+ main_offset 388) main_length), 134395#(<= (+ main_offset 384) main_length), 134392#(<= (+ main_offset 396) main_length), 134393#(<= (+ main_offset 392) main_length), 134398#(<= (+ main_offset 372) main_length), 134399#(<= (+ main_offset 368) main_length), 134396#(<= (+ main_offset 380) main_length), 134397#(<= (+ main_offset 376) main_length)] [2018-07-23 13:53:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 29070 backedges. 0 proven. 29070 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:30,592 INFO L450 AbstractCegarLoop]: Interpolant automaton has 173 states [2018-07-23 13:53:30,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2018-07-23 13:53:30,595 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:53:30,596 INFO L87 Difference]: Start difference. First operand 344 states and 344 transitions. Second operand 173 states. [2018-07-23 13:53:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:31,564 INFO L93 Difference]: Finished difference Result 347 states and 347 transitions. [2018-07-23 13:53:31,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2018-07-23 13:53:31,564 INFO L78 Accepts]: Start accepts. Automaton has 173 states. Word has length 343 [2018-07-23 13:53:31,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:31,565 INFO L225 Difference]: With dead ends: 347 [2018-07-23 13:53:31,565 INFO L226 Difference]: Without dead ends: 346 [2018-07-23 13:53:31,566 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2018-07-23 13:53:31,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-07-23 13:53:31,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2018-07-23 13:53:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-07-23 13:53:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 346 transitions. [2018-07-23 13:53:31,573 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 346 transitions. Word has length 343 [2018-07-23 13:53:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:31,573 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 346 transitions. [2018-07-23 13:53:31,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 173 states. [2018-07-23 13:53:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 346 transitions. [2018-07-23 13:53:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-07-23 13:53:31,575 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:31,575 INFO L357 BasicCegarLoop]: trace histogram [172, 171, 1, 1] [2018-07-23 13:53:31,575 INFO L414 AbstractCegarLoop]: === Iteration 172 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:31,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1579980426, now seen corresponding path program 171 times [2018-07-23 13:53:31,575 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 29412 backedges. 0 proven. 29412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:32,783 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:32,783 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2018-07-23 13:53:32,783 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:32,783 INFO L185 omatonBuilderFactory]: Interpolants [135938#(<= (+ main_offset 448) main_length), 135939#(<= (+ main_offset 444) main_length), 135936#(<= (+ main_offset 456) main_length), 135937#(<= (+ main_offset 452) main_length), 135942#(<= (+ main_offset 432) main_length), 135943#(<= (+ main_offset 428) main_length), 135940#(<= (+ main_offset 440) main_length), 135941#(<= (+ main_offset 436) main_length), 135946#(<= (+ main_offset 416) main_length), 135947#(<= (+ main_offset 412) main_length), 135944#(<= (+ main_offset 424) main_length), 135945#(<= (+ main_offset 420) main_length), 135950#(<= (+ main_offset 400) main_length), 135951#(<= (+ main_offset 396) main_length), 135948#(<= (+ main_offset 408) main_length), 135949#(<= (+ main_offset 404) main_length), 135954#(<= (+ main_offset 384) main_length), 135955#(<= (+ main_offset 380) main_length), 135952#(<= (+ main_offset 392) main_length), 135953#(<= (+ main_offset 388) main_length), 135958#(<= (+ main_offset 368) main_length), 135959#(<= (+ main_offset 364) main_length), 135956#(<= (+ main_offset 376) main_length), 135957#(<= (+ main_offset 372) main_length), 135786#true, 135787#false, 135790#(<= (+ main_offset 1040) main_length), 135791#(<= (+ main_offset 1036) main_length), 135788#(<= (+ main_offset 1048) main_length), 135789#(<= (+ main_offset 1044) main_length), 135794#(<= (+ main_offset 1024) main_length), 135795#(<= (+ main_offset 1020) main_length), 135792#(<= (+ main_offset 1032) main_length), 135793#(<= (+ main_offset 1028) main_length), 135798#(<= (+ main_offset 1008) main_length), 135799#(<= (+ main_offset 1004) main_length), 135796#(<= (+ main_offset 1016) main_length), 135797#(<= (+ main_offset 1012) main_length), 135802#(<= (+ main_offset 992) main_length), 135803#(<= (+ main_offset 988) main_length), 135800#(<= (+ main_offset 1000) main_length), 135801#(<= (+ main_offset 996) main_length), 135806#(<= (+ main_offset 976) main_length), 135807#(<= (+ main_offset 972) main_length), 135804#(<= (+ main_offset 984) main_length), 135805#(<= (+ main_offset 980) main_length), 135810#(<= (+ main_offset 960) main_length), 135811#(<= (+ main_offset 956) main_length), 135808#(<= (+ main_offset 968) main_length), 135809#(<= (+ main_offset 964) main_length), 135814#(<= (+ main_offset 944) main_length), 135815#(<= (+ main_offset 940) main_length), 135812#(<= (+ main_offset 952) main_length), 135813#(<= (+ main_offset 948) main_length), 135818#(<= (+ main_offset 928) main_length), 135819#(<= (+ main_offset 924) main_length), 135816#(<= (+ main_offset 936) main_length), 135817#(<= (+ main_offset 932) main_length), 135822#(<= (+ main_offset 912) main_length), 135823#(<= (+ main_offset 908) main_length), 135820#(<= (+ main_offset 920) main_length), 135821#(<= (+ main_offset 916) main_length), 135826#(<= (+ main_offset 896) main_length), 135827#(<= (+ main_offset 892) main_length), 135824#(<= (+ main_offset 904) main_length), 135825#(<= (+ main_offset 900) main_length), 135830#(<= (+ main_offset 880) main_length), 135831#(<= (+ main_offset 876) main_length), 135828#(<= (+ main_offset 888) main_length), 135829#(<= (+ main_offset 884) main_length), 135834#(<= (+ main_offset 864) main_length), 135835#(<= (+ main_offset 860) main_length), 135832#(<= (+ main_offset 872) main_length), 135833#(<= (+ main_offset 868) main_length), 135838#(<= (+ main_offset 848) main_length), 135839#(<= (+ main_offset 844) main_length), 135836#(<= (+ main_offset 856) main_length), 135837#(<= (+ main_offset 852) main_length), 135842#(<= (+ main_offset 832) main_length), 135843#(<= (+ main_offset 828) main_length), 135840#(<= (+ main_offset 840) main_length), 135841#(<= (+ main_offset 836) main_length), 135846#(<= (+ main_offset 816) main_length), 135847#(<= (+ main_offset 812) main_length), 135844#(<= (+ main_offset 824) main_length), 135845#(<= (+ main_offset 820) main_length), 135850#(<= (+ main_offset 800) main_length), 135851#(<= (+ main_offset 796) main_length), 135848#(<= (+ main_offset 808) main_length), 135849#(<= (+ main_offset 804) main_length), 135854#(<= (+ main_offset 784) main_length), 135855#(<= (+ main_offset 780) main_length), 135852#(<= (+ main_offset 792) main_length), 135853#(<= (+ main_offset 788) main_length), 135858#(<= (+ main_offset 768) main_length), 135859#(<= (+ main_offset 764) main_length), 135856#(<= (+ main_offset 776) main_length), 135857#(<= (+ main_offset 772) main_length), 135862#(<= (+ main_offset 752) main_length), 135863#(<= (+ main_offset 748) main_length), 135860#(<= (+ main_offset 760) main_length), 135861#(<= (+ main_offset 756) main_length), 135866#(<= (+ main_offset 736) main_length), 135867#(<= (+ main_offset 732) main_length), 135864#(<= (+ main_offset 744) main_length), 135865#(<= (+ main_offset 740) main_length), 135870#(<= (+ main_offset 720) main_length), 135871#(<= (+ main_offset 716) main_length), 135868#(<= (+ main_offset 728) main_length), 135869#(<= (+ main_offset 724) main_length), 135874#(<= (+ main_offset 704) main_length), 135875#(<= (+ main_offset 700) main_length), 135872#(<= (+ main_offset 712) main_length), 135873#(<= (+ main_offset 708) main_length), 135878#(<= (+ main_offset 688) main_length), 135879#(<= (+ main_offset 684) main_length), 135876#(<= (+ main_offset 696) main_length), 135877#(<= (+ main_offset 692) main_length), 135882#(<= (+ main_offset 672) main_length), 135883#(<= (+ main_offset 668) main_length), 135880#(<= (+ main_offset 680) main_length), 135881#(<= (+ main_offset 676) main_length), 135886#(<= (+ main_offset 656) main_length), 135887#(<= (+ main_offset 652) main_length), 135884#(<= (+ main_offset 664) main_length), 135885#(<= (+ main_offset 660) main_length), 135890#(<= (+ main_offset 640) main_length), 135891#(<= (+ main_offset 636) main_length), 135888#(<= (+ main_offset 648) main_length), 135889#(<= (+ main_offset 644) main_length), 135894#(<= (+ main_offset 624) main_length), 135895#(<= (+ main_offset 620) main_length), 135892#(<= (+ main_offset 632) main_length), 135893#(<= (+ main_offset 628) main_length), 135898#(<= (+ main_offset 608) main_length), 135899#(<= (+ main_offset 604) main_length), 135896#(<= (+ main_offset 616) main_length), 135897#(<= (+ main_offset 612) main_length), 135902#(<= (+ main_offset 592) main_length), 135903#(<= (+ main_offset 588) main_length), 135900#(<= (+ main_offset 600) main_length), 135901#(<= (+ main_offset 596) main_length), 135906#(<= (+ main_offset 576) main_length), 135907#(<= (+ main_offset 572) main_length), 135904#(<= (+ main_offset 584) main_length), 135905#(<= (+ main_offset 580) main_length), 135910#(<= (+ main_offset 560) main_length), 135911#(<= (+ main_offset 556) main_length), 135908#(<= (+ main_offset 568) main_length), 135909#(<= (+ main_offset 564) main_length), 135914#(<= (+ main_offset 544) main_length), 135915#(<= (+ main_offset 540) main_length), 135912#(<= (+ main_offset 552) main_length), 135913#(<= (+ main_offset 548) main_length), 135918#(<= (+ main_offset 528) main_length), 135919#(<= (+ main_offset 524) main_length), 135916#(<= (+ main_offset 536) main_length), 135917#(<= (+ main_offset 532) main_length), 135922#(<= (+ main_offset 512) main_length), 135923#(<= (+ main_offset 508) main_length), 135920#(<= (+ main_offset 520) main_length), 135921#(<= (+ main_offset 516) main_length), 135926#(<= (+ main_offset 496) main_length), 135927#(<= (+ main_offset 492) main_length), 135924#(<= (+ main_offset 504) main_length), 135925#(<= (+ main_offset 500) main_length), 135930#(<= (+ main_offset 480) main_length), 135931#(<= (+ main_offset 476) main_length), 135928#(<= (+ main_offset 488) main_length), 135929#(<= (+ main_offset 484) main_length), 135934#(<= (+ main_offset 464) main_length), 135935#(<= (+ main_offset 460) main_length), 135932#(<= (+ main_offset 472) main_length), 135933#(<= (+ main_offset 468) main_length)] [2018-07-23 13:53:32,785 INFO L134 CoverageAnalysis]: Checked inductivity of 29412 backedges. 0 proven. 29412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:32,785 INFO L450 AbstractCegarLoop]: Interpolant automaton has 174 states [2018-07-23 13:53:32,787 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 174 interpolants. [2018-07-23 13:53:32,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:53:32,788 INFO L87 Difference]: Start difference. First operand 346 states and 346 transitions. Second operand 174 states. [2018-07-23 13:53:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:33,516 INFO L93 Difference]: Finished difference Result 349 states and 349 transitions. [2018-07-23 13:53:33,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2018-07-23 13:53:33,516 INFO L78 Accepts]: Start accepts. Automaton has 174 states. Word has length 345 [2018-07-23 13:53:33,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:33,517 INFO L225 Difference]: With dead ends: 349 [2018-07-23 13:53:33,517 INFO L226 Difference]: Without dead ends: 348 [2018-07-23 13:53:33,518 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2018-07-23 13:53:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-07-23 13:53:33,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2018-07-23 13:53:33,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-07-23 13:53:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 348 transitions. [2018-07-23 13:53:33,523 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 348 transitions. Word has length 345 [2018-07-23 13:53:33,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:33,523 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 348 transitions. [2018-07-23 13:53:33,523 INFO L472 AbstractCegarLoop]: Interpolant automaton has 174 states. [2018-07-23 13:53:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 348 transitions. [2018-07-23 13:53:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-23 13:53:33,524 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:33,524 INFO L357 BasicCegarLoop]: trace histogram [173, 172, 1, 1] [2018-07-23 13:53:33,524 INFO L414 AbstractCegarLoop]: === Iteration 173 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:33,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2057234488, now seen corresponding path program 172 times [2018-07-23 13:53:33,524 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 29756 backedges. 0 proven. 29756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,678 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:34,679 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2018-07-23 13:53:34,679 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,679 INFO L185 omatonBuilderFactory]: Interpolants [137474#(<= (+ main_offset 576) main_length), 137475#(<= (+ main_offset 572) main_length), 137472#(<= (+ main_offset 584) main_length), 137473#(<= (+ main_offset 580) main_length), 137478#(<= (+ main_offset 560) main_length), 137479#(<= (+ main_offset 556) main_length), 137476#(<= (+ main_offset 568) main_length), 137477#(<= (+ main_offset 564) main_length), 137482#(<= (+ main_offset 544) main_length), 137483#(<= (+ main_offset 540) main_length), 137480#(<= (+ main_offset 552) main_length), 137481#(<= (+ main_offset 548) main_length), 137486#(<= (+ main_offset 528) main_length), 137487#(<= (+ main_offset 524) main_length), 137484#(<= (+ main_offset 536) main_length), 137485#(<= (+ main_offset 532) main_length), 137490#(<= (+ main_offset 512) main_length), 137491#(<= (+ main_offset 508) main_length), 137488#(<= (+ main_offset 520) main_length), 137489#(<= (+ main_offset 516) main_length), 137494#(<= (+ main_offset 496) main_length), 137495#(<= (+ main_offset 492) main_length), 137492#(<= (+ main_offset 504) main_length), 137493#(<= (+ main_offset 500) main_length), 137498#(<= (+ main_offset 480) main_length), 137499#(<= (+ main_offset 476) main_length), 137496#(<= (+ main_offset 488) main_length), 137497#(<= (+ main_offset 484) main_length), 137502#(<= (+ main_offset 464) main_length), 137503#(<= (+ main_offset 460) main_length), 137500#(<= (+ main_offset 472) main_length), 137501#(<= (+ main_offset 468) main_length), 137506#(<= (+ main_offset 448) main_length), 137507#(<= (+ main_offset 444) main_length), 137504#(<= (+ main_offset 456) main_length), 137505#(<= (+ main_offset 452) main_length), 137510#(<= (+ main_offset 432) main_length), 137511#(<= (+ main_offset 428) main_length), 137508#(<= (+ main_offset 440) main_length), 137509#(<= (+ main_offset 436) main_length), 137514#(<= (+ main_offset 416) main_length), 137515#(<= (+ main_offset 412) main_length), 137512#(<= (+ main_offset 424) main_length), 137513#(<= (+ main_offset 420) main_length), 137518#(<= (+ main_offset 400) main_length), 137519#(<= (+ main_offset 396) main_length), 137516#(<= (+ main_offset 408) main_length), 137517#(<= (+ main_offset 404) main_length), 137522#(<= (+ main_offset 384) main_length), 137523#(<= (+ main_offset 380) main_length), 137520#(<= (+ main_offset 392) main_length), 137521#(<= (+ main_offset 388) main_length), 137526#(<= (+ main_offset 368) main_length), 137527#(<= (+ main_offset 364) main_length), 137524#(<= (+ main_offset 376) main_length), 137525#(<= (+ main_offset 372) main_length), 137528#(<= (+ main_offset 360) main_length), 137354#true, 137355#false, 137358#(<= (+ main_offset 1040) main_length), 137359#(<= (+ main_offset 1036) main_length), 137356#(<= (+ main_offset 1048) main_length), 137357#(<= (+ main_offset 1044) main_length), 137362#(<= (+ main_offset 1024) main_length), 137363#(<= (+ main_offset 1020) main_length), 137360#(<= (+ main_offset 1032) main_length), 137361#(<= (+ main_offset 1028) main_length), 137366#(<= (+ main_offset 1008) main_length), 137367#(<= (+ main_offset 1004) main_length), 137364#(<= (+ main_offset 1016) main_length), 137365#(<= (+ main_offset 1012) main_length), 137370#(<= (+ main_offset 992) main_length), 137371#(<= (+ main_offset 988) main_length), 137368#(<= (+ main_offset 1000) main_length), 137369#(<= (+ main_offset 996) main_length), 137374#(<= (+ main_offset 976) main_length), 137375#(<= (+ main_offset 972) main_length), 137372#(<= (+ main_offset 984) main_length), 137373#(<= (+ main_offset 980) main_length), 137378#(<= (+ main_offset 960) main_length), 137379#(<= (+ main_offset 956) main_length), 137376#(<= (+ main_offset 968) main_length), 137377#(<= (+ main_offset 964) main_length), 137382#(<= (+ main_offset 944) main_length), 137383#(<= (+ main_offset 940) main_length), 137380#(<= (+ main_offset 952) main_length), 137381#(<= (+ main_offset 948) main_length), 137386#(<= (+ main_offset 928) main_length), 137387#(<= (+ main_offset 924) main_length), 137384#(<= (+ main_offset 936) main_length), 137385#(<= (+ main_offset 932) main_length), 137390#(<= (+ main_offset 912) main_length), 137391#(<= (+ main_offset 908) main_length), 137388#(<= (+ main_offset 920) main_length), 137389#(<= (+ main_offset 916) main_length), 137394#(<= (+ main_offset 896) main_length), 137395#(<= (+ main_offset 892) main_length), 137392#(<= (+ main_offset 904) main_length), 137393#(<= (+ main_offset 900) main_length), 137398#(<= (+ main_offset 880) main_length), 137399#(<= (+ main_offset 876) main_length), 137396#(<= (+ main_offset 888) main_length), 137397#(<= (+ main_offset 884) main_length), 137402#(<= (+ main_offset 864) main_length), 137403#(<= (+ main_offset 860) main_length), 137400#(<= (+ main_offset 872) main_length), 137401#(<= (+ main_offset 868) main_length), 137406#(<= (+ main_offset 848) main_length), 137407#(<= (+ main_offset 844) main_length), 137404#(<= (+ main_offset 856) main_length), 137405#(<= (+ main_offset 852) main_length), 137410#(<= (+ main_offset 832) main_length), 137411#(<= (+ main_offset 828) main_length), 137408#(<= (+ main_offset 840) main_length), 137409#(<= (+ main_offset 836) main_length), 137414#(<= (+ main_offset 816) main_length), 137415#(<= (+ main_offset 812) main_length), 137412#(<= (+ main_offset 824) main_length), 137413#(<= (+ main_offset 820) main_length), 137418#(<= (+ main_offset 800) main_length), 137419#(<= (+ main_offset 796) main_length), 137416#(<= (+ main_offset 808) main_length), 137417#(<= (+ main_offset 804) main_length), 137422#(<= (+ main_offset 784) main_length), 137423#(<= (+ main_offset 780) main_length), 137420#(<= (+ main_offset 792) main_length), 137421#(<= (+ main_offset 788) main_length), 137426#(<= (+ main_offset 768) main_length), 137427#(<= (+ main_offset 764) main_length), 137424#(<= (+ main_offset 776) main_length), 137425#(<= (+ main_offset 772) main_length), 137430#(<= (+ main_offset 752) main_length), 137431#(<= (+ main_offset 748) main_length), 137428#(<= (+ main_offset 760) main_length), 137429#(<= (+ main_offset 756) main_length), 137434#(<= (+ main_offset 736) main_length), 137435#(<= (+ main_offset 732) main_length), 137432#(<= (+ main_offset 744) main_length), 137433#(<= (+ main_offset 740) main_length), 137438#(<= (+ main_offset 720) main_length), 137439#(<= (+ main_offset 716) main_length), 137436#(<= (+ main_offset 728) main_length), 137437#(<= (+ main_offset 724) main_length), 137442#(<= (+ main_offset 704) main_length), 137443#(<= (+ main_offset 700) main_length), 137440#(<= (+ main_offset 712) main_length), 137441#(<= (+ main_offset 708) main_length), 137446#(<= (+ main_offset 688) main_length), 137447#(<= (+ main_offset 684) main_length), 137444#(<= (+ main_offset 696) main_length), 137445#(<= (+ main_offset 692) main_length), 137450#(<= (+ main_offset 672) main_length), 137451#(<= (+ main_offset 668) main_length), 137448#(<= (+ main_offset 680) main_length), 137449#(<= (+ main_offset 676) main_length), 137454#(<= (+ main_offset 656) main_length), 137455#(<= (+ main_offset 652) main_length), 137452#(<= (+ main_offset 664) main_length), 137453#(<= (+ main_offset 660) main_length), 137458#(<= (+ main_offset 640) main_length), 137459#(<= (+ main_offset 636) main_length), 137456#(<= (+ main_offset 648) main_length), 137457#(<= (+ main_offset 644) main_length), 137462#(<= (+ main_offset 624) main_length), 137463#(<= (+ main_offset 620) main_length), 137460#(<= (+ main_offset 632) main_length), 137461#(<= (+ main_offset 628) main_length), 137466#(<= (+ main_offset 608) main_length), 137467#(<= (+ main_offset 604) main_length), 137464#(<= (+ main_offset 616) main_length), 137465#(<= (+ main_offset 612) main_length), 137470#(<= (+ main_offset 592) main_length), 137471#(<= (+ main_offset 588) main_length), 137468#(<= (+ main_offset 600) main_length), 137469#(<= (+ main_offset 596) main_length)] [2018-07-23 13:53:34,680 INFO L134 CoverageAnalysis]: Checked inductivity of 29756 backedges. 0 proven. 29756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:34,681 INFO L450 AbstractCegarLoop]: Interpolant automaton has 175 states [2018-07-23 13:53:34,682 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2018-07-23 13:53:34,682 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:53:34,682 INFO L87 Difference]: Start difference. First operand 348 states and 348 transitions. Second operand 175 states. [2018-07-23 13:53:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:35,053 INFO L93 Difference]: Finished difference Result 351 states and 351 transitions. [2018-07-23 13:53:35,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2018-07-23 13:53:35,053 INFO L78 Accepts]: Start accepts. Automaton has 175 states. Word has length 347 [2018-07-23 13:53:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:35,054 INFO L225 Difference]: With dead ends: 351 [2018-07-23 13:53:35,054 INFO L226 Difference]: Without dead ends: 350 [2018-07-23 13:53:35,054 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2018-07-23 13:53:35,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-07-23 13:53:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2018-07-23 13:53:35,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-07-23 13:53:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 350 transitions. [2018-07-23 13:53:35,058 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 350 transitions. Word has length 347 [2018-07-23 13:53:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:35,059 INFO L471 AbstractCegarLoop]: Abstraction has 350 states and 350 transitions. [2018-07-23 13:53:35,059 INFO L472 AbstractCegarLoop]: Interpolant automaton has 175 states. [2018-07-23 13:53:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 350 transitions. [2018-07-23 13:53:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-07-23 13:53:35,060 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:35,060 INFO L357 BasicCegarLoop]: trace histogram [174, 173, 1, 1] [2018-07-23 13:53:35,060 INFO L414 AbstractCegarLoop]: === Iteration 174 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:35,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1317387898, now seen corresponding path program 173 times [2018-07-23 13:53:35,060 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 30102 backedges. 0 proven. 30102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:36,187 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:36,187 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2018-07-23 13:53:36,187 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:36,188 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 13:53:36,188 INFO L185 omatonBuilderFactory]: Interpolants [139010#(<= (+ main_offset 740) main_length), 139011#(<= (+ main_offset 736) main_length), 139008#(<= (+ main_offset 748) main_length), 139009#(<= (+ main_offset 744) main_length), 139014#(<= (+ main_offset 724) main_length), 139015#(<= (+ main_offset 720) main_length), 139012#(<= (+ main_offset 732) main_length), 139013#(<= (+ main_offset 728) main_length), 139018#(<= (+ main_offset 708) main_length), 139019#(<= (+ main_offset 704) main_length), 139016#(<= (+ main_offset 716) main_length), 139017#(<= (+ main_offset 712) main_length), 139022#(<= (+ main_offset 692) main_length), 139023#(<= (+ main_offset 688) main_length), 139020#(<= (+ main_offset 700) main_length), 139021#(<= (+ main_offset 696) main_length), 139026#(<= (+ main_offset 676) main_length), 139027#(<= (+ main_offset 672) main_length), 139024#(<= (+ main_offset 684) main_length), 139025#(<= (+ main_offset 680) main_length), 139030#(<= (+ main_offset 660) main_length), 139031#(<= (+ main_offset 656) main_length), 139028#(<= (+ main_offset 668) main_length), 139029#(<= (+ main_offset 664) main_length), 139034#(<= (+ main_offset 644) main_length), 139035#(<= (+ main_offset 640) main_length), 139032#(<= (+ main_offset 652) main_length), 139033#(<= (+ main_offset 648) main_length), 139038#(<= (+ main_offset 628) main_length), 139039#(<= (+ main_offset 624) main_length), 139036#(<= (+ main_offset 636) main_length), 139037#(<= (+ main_offset 632) main_length), 139042#(<= (+ main_offset 612) main_length), 139043#(<= (+ main_offset 608) main_length), 139040#(<= (+ main_offset 620) main_length), 139041#(<= (+ main_offset 616) main_length), 139046#(<= (+ main_offset 596) main_length), 139047#(<= (+ main_offset 592) main_length), 139044#(<= (+ main_offset 604) main_length), 139045#(<= (+ main_offset 600) main_length), 139050#(<= (+ main_offset 580) main_length), 139051#(<= (+ main_offset 576) main_length), 139048#(<= (+ main_offset 588) main_length), 139049#(<= (+ main_offset 584) main_length), 139054#(<= (+ main_offset 564) main_length), 139055#(<= (+ main_offset 560) main_length), 139052#(<= (+ main_offset 572) main_length), 139053#(<= (+ main_offset 568) main_length), 139058#(<= (+ main_offset 548) main_length), 139059#(<= (+ main_offset 544) main_length), 139056#(<= (+ main_offset 556) main_length), 139057#(<= (+ main_offset 552) main_length), 139062#(<= (+ main_offset 532) main_length), 139063#(<= (+ main_offset 528) main_length), 139060#(<= (+ main_offset 540) main_length), 139061#(<= (+ main_offset 536) main_length), 139066#(<= (+ main_offset 516) main_length), 139067#(<= (+ main_offset 512) main_length), 139064#(<= (+ main_offset 524) main_length), 139065#(<= (+ main_offset 520) main_length), 139070#(<= (+ main_offset 500) main_length), 139071#(<= (+ main_offset 496) main_length), 139068#(<= (+ main_offset 508) main_length), 139069#(<= (+ main_offset 504) main_length), 139074#(<= (+ main_offset 484) main_length), 139075#(<= (+ main_offset 480) main_length), 139072#(<= (+ main_offset 492) main_length), 139073#(<= (+ main_offset 488) main_length), 139078#(<= (+ main_offset 468) main_length), 139079#(<= (+ main_offset 464) main_length), 139076#(<= (+ main_offset 476) main_length), 139077#(<= (+ main_offset 472) main_length), 139082#(<= (+ main_offset 452) main_length), 139083#(<= (+ main_offset 448) main_length), 139080#(<= (+ main_offset 460) main_length), 139081#(<= (+ main_offset 456) main_length), 139086#(<= (+ main_offset 436) main_length), 139087#(<= (+ main_offset 432) main_length), 139084#(<= (+ main_offset 444) main_length), 139085#(<= (+ main_offset 440) main_length), 139090#(<= (+ main_offset 420) main_length), 139091#(<= (+ main_offset 416) main_length), 139088#(<= (+ main_offset 428) main_length), 139089#(<= (+ main_offset 424) main_length), 139094#(<= (+ main_offset 404) main_length), 139095#(<= (+ main_offset 400) main_length), 139092#(<= (+ main_offset 412) main_length), 139093#(<= (+ main_offset 408) main_length), 139098#(<= (+ main_offset 388) main_length), 139099#(<= (+ main_offset 384) main_length), 139096#(<= (+ main_offset 396) main_length), 139097#(<= (+ main_offset 392) main_length), 139102#(<= (+ main_offset 372) main_length), 139103#(<= (+ main_offset 368) main_length), 139100#(<= (+ main_offset 380) main_length), 139101#(<= (+ main_offset 376) main_length), 139106#(<= (+ main_offset 356) main_length), 139104#(<= (+ main_offset 364) main_length), 139105#(<= (+ main_offset 360) main_length), 138931#true, 138934#(<= (+ main_offset 1044) main_length), 138935#(<= (+ main_offset 1040) main_length), 138932#false, 138933#(<= (+ main_offset 1048) main_length), 138938#(<= (+ main_offset 1028) main_length), 138939#(<= (+ main_offset 1024) main_length), 138936#(<= (+ main_offset 1036) main_length), 138937#(<= (+ main_offset 1032) main_length), 138942#(<= (+ main_offset 1012) main_length), 138943#(<= (+ main_offset 1008) main_length), 138940#(<= (+ main_offset 1020) main_length), 138941#(<= (+ main_offset 1016) main_length), 138946#(<= (+ main_offset 996) main_length), 138947#(<= (+ main_offset 992) main_length), 138944#(<= (+ main_offset 1004) main_length), 138945#(<= (+ main_offset 1000) main_length), 138950#(<= (+ main_offset 980) main_length), 138951#(<= (+ main_offset 976) main_length), 138948#(<= (+ main_offset 988) main_length), 138949#(<= (+ main_offset 984) main_length), 138954#(<= (+ main_offset 964) main_length), 138955#(<= (+ main_offset 960) main_length), 138952#(<= (+ main_offset 972) main_length), 138953#(<= (+ main_offset 968) main_length), 138958#(<= (+ main_offset 948) main_length), 138959#(<= (+ main_offset 944) main_length), 138956#(<= (+ main_offset 956) main_length), 138957#(<= (+ main_offset 952) main_length), 138962#(<= (+ main_offset 932) main_length), 138963#(<= (+ main_offset 928) main_length), 138960#(<= (+ main_offset 940) main_length), 138961#(<= (+ main_offset 936) main_length), 138966#(<= (+ main_offset 916) main_length), 138967#(<= (+ main_offset 912) main_length), 138964#(<= (+ main_offset 924) main_length), 138965#(<= (+ main_offset 920) main_length), 138970#(<= (+ main_offset 900) main_length), 138971#(<= (+ main_offset 896) main_length), 138968#(<= (+ main_offset 908) main_length), 138969#(<= (+ main_offset 904) main_length), 138974#(<= (+ main_offset 884) main_length), 138975#(<= (+ main_offset 880) main_length), 138972#(<= (+ main_offset 892) main_length), 138973#(<= (+ main_offset 888) main_length), 138978#(<= (+ main_offset 868) main_length), 138979#(<= (+ main_offset 864) main_length), 138976#(<= (+ main_offset 876) main_length), 138977#(<= (+ main_offset 872) main_length), 138982#(<= (+ main_offset 852) main_length), 138983#(<= (+ main_offset 848) main_length), 138980#(<= (+ main_offset 860) main_length), 138981#(<= (+ main_offset 856) main_length), 138986#(<= (+ main_offset 836) main_length), 138987#(<= (+ main_offset 832) main_length), 138984#(<= (+ main_offset 844) main_length), 138985#(<= (+ main_offset 840) main_length), 138990#(<= (+ main_offset 820) main_length), 138991#(<= (+ main_offset 816) main_length), 138988#(<= (+ main_offset 828) main_length), 138989#(<= (+ main_offset 824) main_length), 138994#(<= (+ main_offset 804) main_length), 138995#(<= (+ main_offset 800) main_length), 138992#(<= (+ main_offset 812) main_length), 138993#(<= (+ main_offset 808) main_length), 138998#(<= (+ main_offset 788) main_length), 138999#(<= (+ main_offset 784) main_length), 138996#(<= (+ main_offset 796) main_length), 138997#(<= (+ main_offset 792) main_length), 139002#(<= (+ main_offset 772) main_length), 139003#(<= (+ main_offset 768) main_length), 139000#(<= (+ main_offset 780) main_length), 139001#(<= (+ main_offset 776) main_length), 139006#(<= (+ main_offset 756) main_length), 139007#(<= (+ main_offset 752) main_length), 139004#(<= (+ main_offset 764) main_length), 139005#(<= (+ main_offset 760) main_length)] [2018-07-23 13:53:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 30102 backedges. 0 proven. 30102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:36,189 INFO L450 AbstractCegarLoop]: Interpolant automaton has 176 states [2018-07-23 13:53:36,191 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2018-07-23 13:53:36,192 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:53:36,192 INFO L87 Difference]: Start difference. First operand 350 states and 350 transitions. Second operand 176 states. [2018-07-23 13:53:36,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:36,640 INFO L93 Difference]: Finished difference Result 353 states and 353 transitions. [2018-07-23 13:53:36,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2018-07-23 13:53:36,640 INFO L78 Accepts]: Start accepts. Automaton has 176 states. Word has length 349 [2018-07-23 13:53:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:36,640 INFO L225 Difference]: With dead ends: 353 [2018-07-23 13:53:36,640 INFO L226 Difference]: Without dead ends: 352 [2018-07-23 13:53:36,642 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2018-07-23 13:53:36,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-07-23 13:53:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2018-07-23 13:53:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2018-07-23 13:53:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 352 transitions. [2018-07-23 13:53:36,646 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 352 transitions. Word has length 349 [2018-07-23 13:53:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:36,646 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 352 transitions. [2018-07-23 13:53:36,646 INFO L472 AbstractCegarLoop]: Interpolant automaton has 176 states. [2018-07-23 13:53:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 352 transitions. [2018-07-23 13:53:36,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-07-23 13:53:36,647 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:36,647 INFO L357 BasicCegarLoop]: trace histogram [175, 174, 1, 1] [2018-07-23 13:53:36,647 INFO L414 AbstractCegarLoop]: === Iteration 175 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:36,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1005581252, now seen corresponding path program 174 times [2018-07-23 13:53:36,647 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 30450 backedges. 0 proven. 30450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,844 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:37,844 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2018-07-23 13:53:37,845 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:37,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,845 INFO L185 omatonBuilderFactory]: Interpolants [140546#(<= (+ main_offset 940) main_length), 140547#(<= (+ main_offset 936) main_length), 140544#(<= (+ main_offset 948) main_length), 140545#(<= (+ main_offset 944) main_length), 140550#(<= (+ main_offset 924) main_length), 140551#(<= (+ main_offset 920) main_length), 140548#(<= (+ main_offset 932) main_length), 140549#(<= (+ main_offset 928) main_length), 140554#(<= (+ main_offset 908) main_length), 140555#(<= (+ main_offset 904) main_length), 140552#(<= (+ main_offset 916) main_length), 140553#(<= (+ main_offset 912) main_length), 140558#(<= (+ main_offset 892) main_length), 140559#(<= (+ main_offset 888) main_length), 140556#(<= (+ main_offset 900) main_length), 140557#(<= (+ main_offset 896) main_length), 140562#(<= (+ main_offset 876) main_length), 140563#(<= (+ main_offset 872) main_length), 140560#(<= (+ main_offset 884) main_length), 140561#(<= (+ main_offset 880) main_length), 140566#(<= (+ main_offset 860) main_length), 140567#(<= (+ main_offset 856) main_length), 140564#(<= (+ main_offset 868) main_length), 140565#(<= (+ main_offset 864) main_length), 140570#(<= (+ main_offset 844) main_length), 140571#(<= (+ main_offset 840) main_length), 140568#(<= (+ main_offset 852) main_length), 140569#(<= (+ main_offset 848) main_length), 140574#(<= (+ main_offset 828) main_length), 140575#(<= (+ main_offset 824) main_length), 140572#(<= (+ main_offset 836) main_length), 140573#(<= (+ main_offset 832) main_length), 140578#(<= (+ main_offset 812) main_length), 140579#(<= (+ main_offset 808) main_length), 140576#(<= (+ main_offset 820) main_length), 140577#(<= (+ main_offset 816) main_length), 140582#(<= (+ main_offset 796) main_length), 140583#(<= (+ main_offset 792) main_length), 140580#(<= (+ main_offset 804) main_length), 140581#(<= (+ main_offset 800) main_length), 140586#(<= (+ main_offset 780) main_length), 140587#(<= (+ main_offset 776) main_length), 140584#(<= (+ main_offset 788) main_length), 140585#(<= (+ main_offset 784) main_length), 140590#(<= (+ main_offset 764) main_length), 140591#(<= (+ main_offset 760) main_length), 140588#(<= (+ main_offset 772) main_length), 140589#(<= (+ main_offset 768) main_length), 140594#(<= (+ main_offset 748) main_length), 140595#(<= (+ main_offset 744) main_length), 140592#(<= (+ main_offset 756) main_length), 140593#(<= (+ main_offset 752) main_length), 140598#(<= (+ main_offset 732) main_length), 140599#(<= (+ main_offset 728) main_length), 140596#(<= (+ main_offset 740) main_length), 140597#(<= (+ main_offset 736) main_length), 140602#(<= (+ main_offset 716) main_length), 140603#(<= (+ main_offset 712) main_length), 140600#(<= (+ main_offset 724) main_length), 140601#(<= (+ main_offset 720) main_length), 140606#(<= (+ main_offset 700) main_length), 140607#(<= (+ main_offset 696) main_length), 140604#(<= (+ main_offset 708) main_length), 140605#(<= (+ main_offset 704) main_length), 140610#(<= (+ main_offset 684) main_length), 140611#(<= (+ main_offset 680) main_length), 140608#(<= (+ main_offset 692) main_length), 140609#(<= (+ main_offset 688) main_length), 140614#(<= (+ main_offset 668) main_length), 140615#(<= (+ main_offset 664) main_length), 140612#(<= (+ main_offset 676) main_length), 140613#(<= (+ main_offset 672) main_length), 140618#(<= (+ main_offset 652) main_length), 140619#(<= (+ main_offset 648) main_length), 140616#(<= (+ main_offset 660) main_length), 140617#(<= (+ main_offset 656) main_length), 140622#(<= (+ main_offset 636) main_length), 140623#(<= (+ main_offset 632) main_length), 140620#(<= (+ main_offset 644) main_length), 140621#(<= (+ main_offset 640) main_length), 140626#(<= (+ main_offset 620) main_length), 140627#(<= (+ main_offset 616) main_length), 140624#(<= (+ main_offset 628) main_length), 140625#(<= (+ main_offset 624) main_length), 140630#(<= (+ main_offset 604) main_length), 140631#(<= (+ main_offset 600) main_length), 140628#(<= (+ main_offset 612) main_length), 140629#(<= (+ main_offset 608) main_length), 140634#(<= (+ main_offset 588) main_length), 140635#(<= (+ main_offset 584) main_length), 140632#(<= (+ main_offset 596) main_length), 140633#(<= (+ main_offset 592) main_length), 140638#(<= (+ main_offset 572) main_length), 140639#(<= (+ main_offset 568) main_length), 140636#(<= (+ main_offset 580) main_length), 140637#(<= (+ main_offset 576) main_length), 140642#(<= (+ main_offset 556) main_length), 140643#(<= (+ main_offset 552) main_length), 140640#(<= (+ main_offset 564) main_length), 140641#(<= (+ main_offset 560) main_length), 140646#(<= (+ main_offset 540) main_length), 140647#(<= (+ main_offset 536) main_length), 140644#(<= (+ main_offset 548) main_length), 140645#(<= (+ main_offset 544) main_length), 140650#(<= (+ main_offset 524) main_length), 140651#(<= (+ main_offset 520) main_length), 140648#(<= (+ main_offset 532) main_length), 140649#(<= (+ main_offset 528) main_length), 140654#(<= (+ main_offset 508) main_length), 140655#(<= (+ main_offset 504) main_length), 140652#(<= (+ main_offset 516) main_length), 140653#(<= (+ main_offset 512) main_length), 140658#(<= (+ main_offset 492) main_length), 140659#(<= (+ main_offset 488) main_length), 140656#(<= (+ main_offset 500) main_length), 140657#(<= (+ main_offset 496) main_length), 140662#(<= (+ main_offset 476) main_length), 140663#(<= (+ main_offset 472) main_length), 140660#(<= (+ main_offset 484) main_length), 140661#(<= (+ main_offset 480) main_length), 140666#(<= (+ main_offset 460) main_length), 140667#(<= (+ main_offset 456) main_length), 140664#(<= (+ main_offset 468) main_length), 140665#(<= (+ main_offset 464) main_length), 140670#(<= (+ main_offset 444) main_length), 140671#(<= (+ main_offset 440) main_length), 140668#(<= (+ main_offset 452) main_length), 140669#(<= (+ main_offset 448) main_length), 140674#(<= (+ main_offset 428) main_length), 140675#(<= (+ main_offset 424) main_length), 140672#(<= (+ main_offset 436) main_length), 140673#(<= (+ main_offset 432) main_length), 140678#(<= (+ main_offset 412) main_length), 140679#(<= (+ main_offset 408) main_length), 140676#(<= (+ main_offset 420) main_length), 140677#(<= (+ main_offset 416) main_length), 140682#(<= (+ main_offset 396) main_length), 140683#(<= (+ main_offset 392) main_length), 140680#(<= (+ main_offset 404) main_length), 140681#(<= (+ main_offset 400) main_length), 140686#(<= (+ main_offset 380) main_length), 140687#(<= (+ main_offset 376) main_length), 140684#(<= (+ main_offset 388) main_length), 140685#(<= (+ main_offset 384) main_length), 140690#(<= (+ main_offset 364) main_length), 140691#(<= (+ main_offset 360) main_length), 140688#(<= (+ main_offset 372) main_length), 140689#(<= (+ main_offset 368) main_length), 140692#(<= (+ main_offset 356) main_length), 140693#(<= (+ main_offset 352) main_length), 140518#false, 140519#(<= (+ main_offset 1048) main_length), 140517#true, 140522#(<= (+ main_offset 1036) main_length), 140523#(<= (+ main_offset 1032) main_length), 140520#(<= (+ main_offset 1044) main_length), 140521#(<= (+ main_offset 1040) main_length), 140526#(<= (+ main_offset 1020) main_length), 140527#(<= (+ main_offset 1016) main_length), 140524#(<= (+ main_offset 1028) main_length), 140525#(<= (+ main_offset 1024) main_length), 140530#(<= (+ main_offset 1004) main_length), 140531#(<= (+ main_offset 1000) main_length), 140528#(<= (+ main_offset 1012) main_length), 140529#(<= (+ main_offset 1008) main_length), 140534#(<= (+ main_offset 988) main_length), 140535#(<= (+ main_offset 984) main_length), 140532#(<= (+ main_offset 996) main_length), 140533#(<= (+ main_offset 992) main_length), 140538#(<= (+ main_offset 972) main_length), 140539#(<= (+ main_offset 968) main_length), 140536#(<= (+ main_offset 980) main_length), 140537#(<= (+ main_offset 976) main_length), 140542#(<= (+ main_offset 956) main_length), 140543#(<= (+ main_offset 952) main_length), 140540#(<= (+ main_offset 964) main_length), 140541#(<= (+ main_offset 960) main_length)] [2018-07-23 13:53:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 30450 backedges. 0 proven. 30450 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:37,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 177 states [2018-07-23 13:53:37,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 177 interpolants. [2018-07-23 13:53:37,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:53:37,852 INFO L87 Difference]: Start difference. First operand 352 states and 352 transitions. Second operand 177 states. [2018-07-23 13:53:39,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:39,250 INFO L93 Difference]: Finished difference Result 355 states and 355 transitions. [2018-07-23 13:53:39,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2018-07-23 13:53:39,250 INFO L78 Accepts]: Start accepts. Automaton has 177 states. Word has length 351 [2018-07-23 13:53:39,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:39,251 INFO L225 Difference]: With dead ends: 355 [2018-07-23 13:53:39,251 INFO L226 Difference]: Without dead ends: 354 [2018-07-23 13:53:39,253 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2018-07-23 13:53:39,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-07-23 13:53:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2018-07-23 13:53:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2018-07-23 13:53:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 354 transitions. [2018-07-23 13:53:39,257 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 354 transitions. Word has length 351 [2018-07-23 13:53:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:39,258 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 354 transitions. [2018-07-23 13:53:39,258 INFO L472 AbstractCegarLoop]: Interpolant automaton has 177 states. [2018-07-23 13:53:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 354 transitions. [2018-07-23 13:53:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-07-23 13:53:39,259 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:39,259 INFO L357 BasicCegarLoop]: trace histogram [176, 175, 1, 1] [2018-07-23 13:53:39,259 INFO L414 AbstractCegarLoop]: === Iteration 176 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:39,259 INFO L82 PathProgramCache]: Analyzing trace with hash 4059518, now seen corresponding path program 175 times [2018-07-23 13:53:39,259 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30800 backedges. 0 proven. 30800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:40,535 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:40,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2018-07-23 13:53:40,535 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:40,535 INFO L185 omatonBuilderFactory]: Interpolants [142114#(<= (+ main_offset 1048) main_length), 142115#(<= (+ main_offset 1044) main_length), 142112#true, 142113#false, 142118#(<= (+ main_offset 1032) main_length), 142119#(<= (+ main_offset 1028) main_length), 142116#(<= (+ main_offset 1040) main_length), 142117#(<= (+ main_offset 1036) main_length), 142122#(<= (+ main_offset 1016) main_length), 142123#(<= (+ main_offset 1012) main_length), 142120#(<= (+ main_offset 1024) main_length), 142121#(<= (+ main_offset 1020) main_length), 142126#(<= (+ main_offset 1000) main_length), 142127#(<= (+ main_offset 996) main_length), 142124#(<= (+ main_offset 1008) main_length), 142125#(<= (+ main_offset 1004) main_length), 142130#(<= (+ main_offset 984) main_length), 142131#(<= (+ main_offset 980) main_length), 142128#(<= (+ main_offset 992) main_length), 142129#(<= (+ main_offset 988) main_length), 142134#(<= (+ main_offset 968) main_length), 142135#(<= (+ main_offset 964) main_length), 142132#(<= (+ main_offset 976) main_length), 142133#(<= (+ main_offset 972) main_length), 142138#(<= (+ main_offset 952) main_length), 142139#(<= (+ main_offset 948) main_length), 142136#(<= (+ main_offset 960) main_length), 142137#(<= (+ main_offset 956) main_length), 142142#(<= (+ main_offset 936) main_length), 142143#(<= (+ main_offset 932) main_length), 142140#(<= (+ main_offset 944) main_length), 142141#(<= (+ main_offset 940) main_length), 142146#(<= (+ main_offset 920) main_length), 142147#(<= (+ main_offset 916) main_length), 142144#(<= (+ main_offset 928) main_length), 142145#(<= (+ main_offset 924) main_length), 142150#(<= (+ main_offset 904) main_length), 142151#(<= (+ main_offset 900) main_length), 142148#(<= (+ main_offset 912) main_length), 142149#(<= (+ main_offset 908) main_length), 142154#(<= (+ main_offset 888) main_length), 142155#(<= (+ main_offset 884) main_length), 142152#(<= (+ main_offset 896) main_length), 142153#(<= (+ main_offset 892) main_length), 142158#(<= (+ main_offset 872) main_length), 142159#(<= (+ main_offset 868) main_length), 142156#(<= (+ main_offset 880) main_length), 142157#(<= (+ main_offset 876) main_length), 142162#(<= (+ main_offset 856) main_length), 142163#(<= (+ main_offset 852) main_length), 142160#(<= (+ main_offset 864) main_length), 142161#(<= (+ main_offset 860) main_length), 142166#(<= (+ main_offset 840) main_length), 142167#(<= (+ main_offset 836) main_length), 142164#(<= (+ main_offset 848) main_length), 142165#(<= (+ main_offset 844) main_length), 142170#(<= (+ main_offset 824) main_length), 142171#(<= (+ main_offset 820) main_length), 142168#(<= (+ main_offset 832) main_length), 142169#(<= (+ main_offset 828) main_length), 142174#(<= (+ main_offset 808) main_length), 142175#(<= (+ main_offset 804) main_length), 142172#(<= (+ main_offset 816) main_length), 142173#(<= (+ main_offset 812) main_length), 142178#(<= (+ main_offset 792) main_length), 142179#(<= (+ main_offset 788) main_length), 142176#(<= (+ main_offset 800) main_length), 142177#(<= (+ main_offset 796) main_length), 142182#(<= (+ main_offset 776) main_length), 142183#(<= (+ main_offset 772) main_length), 142180#(<= (+ main_offset 784) main_length), 142181#(<= (+ main_offset 780) main_length), 142186#(<= (+ main_offset 760) main_length), 142187#(<= (+ main_offset 756) main_length), 142184#(<= (+ main_offset 768) main_length), 142185#(<= (+ main_offset 764) main_length), 142190#(<= (+ main_offset 744) main_length), 142191#(<= (+ main_offset 740) main_length), 142188#(<= (+ main_offset 752) main_length), 142189#(<= (+ main_offset 748) main_length), 142194#(<= (+ main_offset 728) main_length), 142195#(<= (+ main_offset 724) main_length), 142192#(<= (+ main_offset 736) main_length), 142193#(<= (+ main_offset 732) main_length), 142198#(<= (+ main_offset 712) main_length), 142199#(<= (+ main_offset 708) main_length), 142196#(<= (+ main_offset 720) main_length), 142197#(<= (+ main_offset 716) main_length), 142202#(<= (+ main_offset 696) main_length), 142203#(<= (+ main_offset 692) main_length), 142200#(<= (+ main_offset 704) main_length), 142201#(<= (+ main_offset 700) main_length), 142206#(<= (+ main_offset 680) main_length), 142207#(<= (+ main_offset 676) main_length), 142204#(<= (+ main_offset 688) main_length), 142205#(<= (+ main_offset 684) main_length), 142210#(<= (+ main_offset 664) main_length), 142211#(<= (+ main_offset 660) main_length), 142208#(<= (+ main_offset 672) main_length), 142209#(<= (+ main_offset 668) main_length), 142214#(<= (+ main_offset 648) main_length), 142215#(<= (+ main_offset 644) main_length), 142212#(<= (+ main_offset 656) main_length), 142213#(<= (+ main_offset 652) main_length), 142218#(<= (+ main_offset 632) main_length), 142219#(<= (+ main_offset 628) main_length), 142216#(<= (+ main_offset 640) main_length), 142217#(<= (+ main_offset 636) main_length), 142222#(<= (+ main_offset 616) main_length), 142223#(<= (+ main_offset 612) main_length), 142220#(<= (+ main_offset 624) main_length), 142221#(<= (+ main_offset 620) main_length), 142226#(<= (+ main_offset 600) main_length), 142227#(<= (+ main_offset 596) main_length), 142224#(<= (+ main_offset 608) main_length), 142225#(<= (+ main_offset 604) main_length), 142230#(<= (+ main_offset 584) main_length), 142231#(<= (+ main_offset 580) main_length), 142228#(<= (+ main_offset 592) main_length), 142229#(<= (+ main_offset 588) main_length), 142234#(<= (+ main_offset 568) main_length), 142235#(<= (+ main_offset 564) main_length), 142232#(<= (+ main_offset 576) main_length), 142233#(<= (+ main_offset 572) main_length), 142238#(<= (+ main_offset 552) main_length), 142239#(<= (+ main_offset 548) main_length), 142236#(<= (+ main_offset 560) main_length), 142237#(<= (+ main_offset 556) main_length), 142242#(<= (+ main_offset 536) main_length), 142243#(<= (+ main_offset 532) main_length), 142240#(<= (+ main_offset 544) main_length), 142241#(<= (+ main_offset 540) main_length), 142246#(<= (+ main_offset 520) main_length), 142247#(<= (+ main_offset 516) main_length), 142244#(<= (+ main_offset 528) main_length), 142245#(<= (+ main_offset 524) main_length), 142250#(<= (+ main_offset 504) main_length), 142251#(<= (+ main_offset 500) main_length), 142248#(<= (+ main_offset 512) main_length), 142249#(<= (+ main_offset 508) main_length), 142254#(<= (+ main_offset 488) main_length), 142255#(<= (+ main_offset 484) main_length), 142252#(<= (+ main_offset 496) main_length), 142253#(<= (+ main_offset 492) main_length), 142258#(<= (+ main_offset 472) main_length), 142259#(<= (+ main_offset 468) main_length), 142256#(<= (+ main_offset 480) main_length), 142257#(<= (+ main_offset 476) main_length), 142262#(<= (+ main_offset 456) main_length), 142263#(<= (+ main_offset 452) main_length), 142260#(<= (+ main_offset 464) main_length), 142261#(<= (+ main_offset 460) main_length), 142266#(<= (+ main_offset 440) main_length), 142267#(<= (+ main_offset 436) main_length), 142264#(<= (+ main_offset 448) main_length), 142265#(<= (+ main_offset 444) main_length), 142270#(<= (+ main_offset 424) main_length), 142271#(<= (+ main_offset 420) main_length), 142268#(<= (+ main_offset 432) main_length), 142269#(<= (+ main_offset 428) main_length), 142274#(<= (+ main_offset 408) main_length), 142275#(<= (+ main_offset 404) main_length), 142272#(<= (+ main_offset 416) main_length), 142273#(<= (+ main_offset 412) main_length), 142278#(<= (+ main_offset 392) main_length), 142279#(<= (+ main_offset 388) main_length), 142276#(<= (+ main_offset 400) main_length), 142277#(<= (+ main_offset 396) main_length), 142282#(<= (+ main_offset 376) main_length), 142283#(<= (+ main_offset 372) main_length), 142280#(<= (+ main_offset 384) main_length), 142281#(<= (+ main_offset 380) main_length), 142286#(<= (+ main_offset 360) main_length), 142287#(<= (+ main_offset 356) main_length), 142284#(<= (+ main_offset 368) main_length), 142285#(<= (+ main_offset 364) main_length), 142288#(<= (+ main_offset 352) main_length), 142289#(<= (+ main_offset 348) main_length)] [2018-07-23 13:53:40,537 INFO L134 CoverageAnalysis]: Checked inductivity of 30800 backedges. 0 proven. 30800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:40,537 INFO L450 AbstractCegarLoop]: Interpolant automaton has 178 states [2018-07-23 13:53:40,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2018-07-23 13:53:40,540 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:53:40,540 INFO L87 Difference]: Start difference. First operand 354 states and 354 transitions. Second operand 178 states. [2018-07-23 13:53:41,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:41,992 INFO L93 Difference]: Finished difference Result 357 states and 357 transitions. [2018-07-23 13:53:41,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2018-07-23 13:53:41,992 INFO L78 Accepts]: Start accepts. Automaton has 178 states. Word has length 353 [2018-07-23 13:53:41,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:41,993 INFO L225 Difference]: With dead ends: 357 [2018-07-23 13:53:41,993 INFO L226 Difference]: Without dead ends: 356 [2018-07-23 13:53:41,995 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2018-07-23 13:53:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-07-23 13:53:41,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-07-23 13:53:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-07-23 13:53:41,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2018-07-23 13:53:41,999 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 353 [2018-07-23 13:53:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:41,999 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2018-07-23 13:53:41,999 INFO L472 AbstractCegarLoop]: Interpolant automaton has 178 states. [2018-07-23 13:53:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2018-07-23 13:53:42,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-07-23 13:53:42,000 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:42,000 INFO L357 BasicCegarLoop]: trace histogram [177, 176, 1, 1] [2018-07-23 13:53:42,000 INFO L414 AbstractCegarLoop]: === Iteration 177 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:42,000 INFO L82 PathProgramCache]: Analyzing trace with hash -393769408, now seen corresponding path program 176 times [2018-07-23 13:53:42,001 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 31152 backedges. 0 proven. 31152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,159 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:43,159 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2018-07-23 13:53:43,160 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:43,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,160 INFO L185 omatonBuilderFactory]: Interpolants [143874#(<= (+ main_offset 424) main_length), 143875#(<= (+ main_offset 420) main_length), 143872#(<= (+ main_offset 432) main_length), 143873#(<= (+ main_offset 428) main_length), 143878#(<= (+ main_offset 408) main_length), 143879#(<= (+ main_offset 404) main_length), 143876#(<= (+ main_offset 416) main_length), 143877#(<= (+ main_offset 412) main_length), 143882#(<= (+ main_offset 392) main_length), 143883#(<= (+ main_offset 388) main_length), 143880#(<= (+ main_offset 400) main_length), 143881#(<= (+ main_offset 396) main_length), 143886#(<= (+ main_offset 376) main_length), 143887#(<= (+ main_offset 372) main_length), 143884#(<= (+ main_offset 384) main_length), 143885#(<= (+ main_offset 380) main_length), 143890#(<= (+ main_offset 360) main_length), 143891#(<= (+ main_offset 356) main_length), 143888#(<= (+ main_offset 368) main_length), 143889#(<= (+ main_offset 364) main_length), 143894#(<= (+ main_offset 344) main_length), 143892#(<= (+ main_offset 352) main_length), 143893#(<= (+ main_offset 348) main_length), 143718#(<= (+ main_offset 1048) main_length), 143719#(<= (+ main_offset 1044) main_length), 143716#true, 143717#false, 143722#(<= (+ main_offset 1032) main_length), 143723#(<= (+ main_offset 1028) main_length), 143720#(<= (+ main_offset 1040) main_length), 143721#(<= (+ main_offset 1036) main_length), 143726#(<= (+ main_offset 1016) main_length), 143727#(<= (+ main_offset 1012) main_length), 143724#(<= (+ main_offset 1024) main_length), 143725#(<= (+ main_offset 1020) main_length), 143730#(<= (+ main_offset 1000) main_length), 143731#(<= (+ main_offset 996) main_length), 143728#(<= (+ main_offset 1008) main_length), 143729#(<= (+ main_offset 1004) main_length), 143734#(<= (+ main_offset 984) main_length), 143735#(<= (+ main_offset 980) main_length), 143732#(<= (+ main_offset 992) main_length), 143733#(<= (+ main_offset 988) main_length), 143738#(<= (+ main_offset 968) main_length), 143739#(<= (+ main_offset 964) main_length), 143736#(<= (+ main_offset 976) main_length), 143737#(<= (+ main_offset 972) main_length), 143742#(<= (+ main_offset 952) main_length), 143743#(<= (+ main_offset 948) main_length), 143740#(<= (+ main_offset 960) main_length), 143741#(<= (+ main_offset 956) main_length), 143746#(<= (+ main_offset 936) main_length), 143747#(<= (+ main_offset 932) main_length), 143744#(<= (+ main_offset 944) main_length), 143745#(<= (+ main_offset 940) main_length), 143750#(<= (+ main_offset 920) main_length), 143751#(<= (+ main_offset 916) main_length), 143748#(<= (+ main_offset 928) main_length), 143749#(<= (+ main_offset 924) main_length), 143754#(<= (+ main_offset 904) main_length), 143755#(<= (+ main_offset 900) main_length), 143752#(<= (+ main_offset 912) main_length), 143753#(<= (+ main_offset 908) main_length), 143758#(<= (+ main_offset 888) main_length), 143759#(<= (+ main_offset 884) main_length), 143756#(<= (+ main_offset 896) main_length), 143757#(<= (+ main_offset 892) main_length), 143762#(<= (+ main_offset 872) main_length), 143763#(<= (+ main_offset 868) main_length), 143760#(<= (+ main_offset 880) main_length), 143761#(<= (+ main_offset 876) main_length), 143766#(<= (+ main_offset 856) main_length), 143767#(<= (+ main_offset 852) main_length), 143764#(<= (+ main_offset 864) main_length), 143765#(<= (+ main_offset 860) main_length), 143770#(<= (+ main_offset 840) main_length), 143771#(<= (+ main_offset 836) main_length), 143768#(<= (+ main_offset 848) main_length), 143769#(<= (+ main_offset 844) main_length), 143774#(<= (+ main_offset 824) main_length), 143775#(<= (+ main_offset 820) main_length), 143772#(<= (+ main_offset 832) main_length), 143773#(<= (+ main_offset 828) main_length), 143778#(<= (+ main_offset 808) main_length), 143779#(<= (+ main_offset 804) main_length), 143776#(<= (+ main_offset 816) main_length), 143777#(<= (+ main_offset 812) main_length), 143782#(<= (+ main_offset 792) main_length), 143783#(<= (+ main_offset 788) main_length), 143780#(<= (+ main_offset 800) main_length), 143781#(<= (+ main_offset 796) main_length), 143786#(<= (+ main_offset 776) main_length), 143787#(<= (+ main_offset 772) main_length), 143784#(<= (+ main_offset 784) main_length), 143785#(<= (+ main_offset 780) main_length), 143790#(<= (+ main_offset 760) main_length), 143791#(<= (+ main_offset 756) main_length), 143788#(<= (+ main_offset 768) main_length), 143789#(<= (+ main_offset 764) main_length), 143794#(<= (+ main_offset 744) main_length), 143795#(<= (+ main_offset 740) main_length), 143792#(<= (+ main_offset 752) main_length), 143793#(<= (+ main_offset 748) main_length), 143798#(<= (+ main_offset 728) main_length), 143799#(<= (+ main_offset 724) main_length), 143796#(<= (+ main_offset 736) main_length), 143797#(<= (+ main_offset 732) main_length), 143802#(<= (+ main_offset 712) main_length), 143803#(<= (+ main_offset 708) main_length), 143800#(<= (+ main_offset 720) main_length), 143801#(<= (+ main_offset 716) main_length), 143806#(<= (+ main_offset 696) main_length), 143807#(<= (+ main_offset 692) main_length), 143804#(<= (+ main_offset 704) main_length), 143805#(<= (+ main_offset 700) main_length), 143810#(<= (+ main_offset 680) main_length), 143811#(<= (+ main_offset 676) main_length), 143808#(<= (+ main_offset 688) main_length), 143809#(<= (+ main_offset 684) main_length), 143814#(<= (+ main_offset 664) main_length), 143815#(<= (+ main_offset 660) main_length), 143812#(<= (+ main_offset 672) main_length), 143813#(<= (+ main_offset 668) main_length), 143818#(<= (+ main_offset 648) main_length), 143819#(<= (+ main_offset 644) main_length), 143816#(<= (+ main_offset 656) main_length), 143817#(<= (+ main_offset 652) main_length), 143822#(<= (+ main_offset 632) main_length), 143823#(<= (+ main_offset 628) main_length), 143820#(<= (+ main_offset 640) main_length), 143821#(<= (+ main_offset 636) main_length), 143826#(<= (+ main_offset 616) main_length), 143827#(<= (+ main_offset 612) main_length), 143824#(<= (+ main_offset 624) main_length), 143825#(<= (+ main_offset 620) main_length), 143830#(<= (+ main_offset 600) main_length), 143831#(<= (+ main_offset 596) main_length), 143828#(<= (+ main_offset 608) main_length), 143829#(<= (+ main_offset 604) main_length), 143834#(<= (+ main_offset 584) main_length), 143835#(<= (+ main_offset 580) main_length), 143832#(<= (+ main_offset 592) main_length), 143833#(<= (+ main_offset 588) main_length), 143838#(<= (+ main_offset 568) main_length), 143839#(<= (+ main_offset 564) main_length), 143836#(<= (+ main_offset 576) main_length), 143837#(<= (+ main_offset 572) main_length), 143842#(<= (+ main_offset 552) main_length), 143843#(<= (+ main_offset 548) main_length), 143840#(<= (+ main_offset 560) main_length), 143841#(<= (+ main_offset 556) main_length), 143846#(<= (+ main_offset 536) main_length), 143847#(<= (+ main_offset 532) main_length), 143844#(<= (+ main_offset 544) main_length), 143845#(<= (+ main_offset 540) main_length), 143850#(<= (+ main_offset 520) main_length), 143851#(<= (+ main_offset 516) main_length), 143848#(<= (+ main_offset 528) main_length), 143849#(<= (+ main_offset 524) main_length), 143854#(<= (+ main_offset 504) main_length), 143855#(<= (+ main_offset 500) main_length), 143852#(<= (+ main_offset 512) main_length), 143853#(<= (+ main_offset 508) main_length), 143858#(<= (+ main_offset 488) main_length), 143859#(<= (+ main_offset 484) main_length), 143856#(<= (+ main_offset 496) main_length), 143857#(<= (+ main_offset 492) main_length), 143862#(<= (+ main_offset 472) main_length), 143863#(<= (+ main_offset 468) main_length), 143860#(<= (+ main_offset 480) main_length), 143861#(<= (+ main_offset 476) main_length), 143866#(<= (+ main_offset 456) main_length), 143867#(<= (+ main_offset 452) main_length), 143864#(<= (+ main_offset 464) main_length), 143865#(<= (+ main_offset 460) main_length), 143870#(<= (+ main_offset 440) main_length), 143871#(<= (+ main_offset 436) main_length), 143868#(<= (+ main_offset 448) main_length), 143869#(<= (+ main_offset 444) main_length)] [2018-07-23 13:53:43,162 INFO L134 CoverageAnalysis]: Checked inductivity of 31152 backedges. 0 proven. 31152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:43,162 INFO L450 AbstractCegarLoop]: Interpolant automaton has 179 states [2018-07-23 13:53:43,164 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 179 interpolants. [2018-07-23 13:53:43,165 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:53:43,165 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand 179 states. [2018-07-23 13:53:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:43,992 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2018-07-23 13:53:43,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2018-07-23 13:53:43,992 INFO L78 Accepts]: Start accepts. Automaton has 179 states. Word has length 355 [2018-07-23 13:53:43,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:43,993 INFO L225 Difference]: With dead ends: 359 [2018-07-23 13:53:43,993 INFO L226 Difference]: Without dead ends: 358 [2018-07-23 13:53:43,995 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2018-07-23 13:53:43,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-07-23 13:53:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2018-07-23 13:53:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-07-23 13:53:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 358 transitions. [2018-07-23 13:53:43,999 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 358 transitions. Word has length 355 [2018-07-23 13:53:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:43,999 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 358 transitions. [2018-07-23 13:53:43,999 INFO L472 AbstractCegarLoop]: Interpolant automaton has 179 states. [2018-07-23 13:53:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 358 transitions. [2018-07-23 13:53:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-07-23 13:53:44,001 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:44,001 INFO L357 BasicCegarLoop]: trace histogram [178, 177, 1, 1] [2018-07-23 13:53:44,001 INFO L414 AbstractCegarLoop]: === Iteration 178 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:44,001 INFO L82 PathProgramCache]: Analyzing trace with hash -455277950, now seen corresponding path program 177 times [2018-07-23 13:53:44,001 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:45,168 INFO L134 CoverageAnalysis]: Checked inductivity of 31506 backedges. 0 proven. 31506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,168 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:45,169 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [178] total 178 [2018-07-23 13:53:45,169 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:45,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,169 INFO L185 omatonBuilderFactory]: Interpolants [145410#(<= (+ main_offset 732) main_length), 145411#(<= (+ main_offset 728) main_length), 145408#(<= (+ main_offset 740) main_length), 145409#(<= (+ main_offset 736) main_length), 145414#(<= (+ main_offset 716) main_length), 145415#(<= (+ main_offset 712) main_length), 145412#(<= (+ main_offset 724) main_length), 145413#(<= (+ main_offset 720) main_length), 145418#(<= (+ main_offset 700) main_length), 145419#(<= (+ main_offset 696) main_length), 145416#(<= (+ main_offset 708) main_length), 145417#(<= (+ main_offset 704) main_length), 145422#(<= (+ main_offset 684) main_length), 145423#(<= (+ main_offset 680) main_length), 145420#(<= (+ main_offset 692) main_length), 145421#(<= (+ main_offset 688) main_length), 145426#(<= (+ main_offset 668) main_length), 145427#(<= (+ main_offset 664) main_length), 145424#(<= (+ main_offset 676) main_length), 145425#(<= (+ main_offset 672) main_length), 145430#(<= (+ main_offset 652) main_length), 145431#(<= (+ main_offset 648) main_length), 145428#(<= (+ main_offset 660) main_length), 145429#(<= (+ main_offset 656) main_length), 145434#(<= (+ main_offset 636) main_length), 145435#(<= (+ main_offset 632) main_length), 145432#(<= (+ main_offset 644) main_length), 145433#(<= (+ main_offset 640) main_length), 145438#(<= (+ main_offset 620) main_length), 145439#(<= (+ main_offset 616) main_length), 145436#(<= (+ main_offset 628) main_length), 145437#(<= (+ main_offset 624) main_length), 145442#(<= (+ main_offset 604) main_length), 145443#(<= (+ main_offset 600) main_length), 145440#(<= (+ main_offset 612) main_length), 145441#(<= (+ main_offset 608) main_length), 145446#(<= (+ main_offset 588) main_length), 145447#(<= (+ main_offset 584) main_length), 145444#(<= (+ main_offset 596) main_length), 145445#(<= (+ main_offset 592) main_length), 145450#(<= (+ main_offset 572) main_length), 145451#(<= (+ main_offset 568) main_length), 145448#(<= (+ main_offset 580) main_length), 145449#(<= (+ main_offset 576) main_length), 145454#(<= (+ main_offset 556) main_length), 145455#(<= (+ main_offset 552) main_length), 145452#(<= (+ main_offset 564) main_length), 145453#(<= (+ main_offset 560) main_length), 145458#(<= (+ main_offset 540) main_length), 145459#(<= (+ main_offset 536) main_length), 145456#(<= (+ main_offset 548) main_length), 145457#(<= (+ main_offset 544) main_length), 145462#(<= (+ main_offset 524) main_length), 145463#(<= (+ main_offset 520) main_length), 145460#(<= (+ main_offset 532) main_length), 145461#(<= (+ main_offset 528) main_length), 145466#(<= (+ main_offset 508) main_length), 145467#(<= (+ main_offset 504) main_length), 145464#(<= (+ main_offset 516) main_length), 145465#(<= (+ main_offset 512) main_length), 145470#(<= (+ main_offset 492) main_length), 145471#(<= (+ main_offset 488) main_length), 145468#(<= (+ main_offset 500) main_length), 145469#(<= (+ main_offset 496) main_length), 145474#(<= (+ main_offset 476) main_length), 145475#(<= (+ main_offset 472) main_length), 145472#(<= (+ main_offset 484) main_length), 145473#(<= (+ main_offset 480) main_length), 145478#(<= (+ main_offset 460) main_length), 145479#(<= (+ main_offset 456) main_length), 145476#(<= (+ main_offset 468) main_length), 145477#(<= (+ main_offset 464) main_length), 145482#(<= (+ main_offset 444) main_length), 145483#(<= (+ main_offset 440) main_length), 145480#(<= (+ main_offset 452) main_length), 145481#(<= (+ main_offset 448) main_length), 145486#(<= (+ main_offset 428) main_length), 145487#(<= (+ main_offset 424) main_length), 145484#(<= (+ main_offset 436) main_length), 145485#(<= (+ main_offset 432) main_length), 145490#(<= (+ main_offset 412) main_length), 145491#(<= (+ main_offset 408) main_length), 145488#(<= (+ main_offset 420) main_length), 145489#(<= (+ main_offset 416) main_length), 145494#(<= (+ main_offset 396) main_length), 145495#(<= (+ main_offset 392) main_length), 145492#(<= (+ main_offset 404) main_length), 145493#(<= (+ main_offset 400) main_length), 145498#(<= (+ main_offset 380) main_length), 145499#(<= (+ main_offset 376) main_length), 145496#(<= (+ main_offset 388) main_length), 145497#(<= (+ main_offset 384) main_length), 145502#(<= (+ main_offset 364) main_length), 145503#(<= (+ main_offset 360) main_length), 145500#(<= (+ main_offset 372) main_length), 145501#(<= (+ main_offset 368) main_length), 145506#(<= (+ main_offset 348) main_length), 145507#(<= (+ main_offset 344) main_length), 145504#(<= (+ main_offset 356) main_length), 145505#(<= (+ main_offset 352) main_length), 145508#(<= (+ main_offset 340) main_length), 145330#false, 145331#(<= (+ main_offset 1048) main_length), 145329#true, 145334#(<= (+ main_offset 1036) main_length), 145335#(<= (+ main_offset 1032) main_length), 145332#(<= (+ main_offset 1044) main_length), 145333#(<= (+ main_offset 1040) main_length), 145338#(<= (+ main_offset 1020) main_length), 145339#(<= (+ main_offset 1016) main_length), 145336#(<= (+ main_offset 1028) main_length), 145337#(<= (+ main_offset 1024) main_length), 145342#(<= (+ main_offset 1004) main_length), 145343#(<= (+ main_offset 1000) main_length), 145340#(<= (+ main_offset 1012) main_length), 145341#(<= (+ main_offset 1008) main_length), 145346#(<= (+ main_offset 988) main_length), 145347#(<= (+ main_offset 984) main_length), 145344#(<= (+ main_offset 996) main_length), 145345#(<= (+ main_offset 992) main_length), 145350#(<= (+ main_offset 972) main_length), 145351#(<= (+ main_offset 968) main_length), 145348#(<= (+ main_offset 980) main_length), 145349#(<= (+ main_offset 976) main_length), 145354#(<= (+ main_offset 956) main_length), 145355#(<= (+ main_offset 952) main_length), 145352#(<= (+ main_offset 964) main_length), 145353#(<= (+ main_offset 960) main_length), 145358#(<= (+ main_offset 940) main_length), 145359#(<= (+ main_offset 936) main_length), 145356#(<= (+ main_offset 948) main_length), 145357#(<= (+ main_offset 944) main_length), 145362#(<= (+ main_offset 924) main_length), 145363#(<= (+ main_offset 920) main_length), 145360#(<= (+ main_offset 932) main_length), 145361#(<= (+ main_offset 928) main_length), 145366#(<= (+ main_offset 908) main_length), 145367#(<= (+ main_offset 904) main_length), 145364#(<= (+ main_offset 916) main_length), 145365#(<= (+ main_offset 912) main_length), 145370#(<= (+ main_offset 892) main_length), 145371#(<= (+ main_offset 888) main_length), 145368#(<= (+ main_offset 900) main_length), 145369#(<= (+ main_offset 896) main_length), 145374#(<= (+ main_offset 876) main_length), 145375#(<= (+ main_offset 872) main_length), 145372#(<= (+ main_offset 884) main_length), 145373#(<= (+ main_offset 880) main_length), 145378#(<= (+ main_offset 860) main_length), 145379#(<= (+ main_offset 856) main_length), 145376#(<= (+ main_offset 868) main_length), 145377#(<= (+ main_offset 864) main_length), 145382#(<= (+ main_offset 844) main_length), 145383#(<= (+ main_offset 840) main_length), 145380#(<= (+ main_offset 852) main_length), 145381#(<= (+ main_offset 848) main_length), 145386#(<= (+ main_offset 828) main_length), 145387#(<= (+ main_offset 824) main_length), 145384#(<= (+ main_offset 836) main_length), 145385#(<= (+ main_offset 832) main_length), 145390#(<= (+ main_offset 812) main_length), 145391#(<= (+ main_offset 808) main_length), 145388#(<= (+ main_offset 820) main_length), 145389#(<= (+ main_offset 816) main_length), 145394#(<= (+ main_offset 796) main_length), 145395#(<= (+ main_offset 792) main_length), 145392#(<= (+ main_offset 804) main_length), 145393#(<= (+ main_offset 800) main_length), 145398#(<= (+ main_offset 780) main_length), 145399#(<= (+ main_offset 776) main_length), 145396#(<= (+ main_offset 788) main_length), 145397#(<= (+ main_offset 784) main_length), 145402#(<= (+ main_offset 764) main_length), 145403#(<= (+ main_offset 760) main_length), 145400#(<= (+ main_offset 772) main_length), 145401#(<= (+ main_offset 768) main_length), 145406#(<= (+ main_offset 748) main_length), 145407#(<= (+ main_offset 744) main_length), 145404#(<= (+ main_offset 756) main_length), 145405#(<= (+ main_offset 752) main_length)] [2018-07-23 13:53:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 31506 backedges. 0 proven. 31506 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:45,171 INFO L450 AbstractCegarLoop]: Interpolant automaton has 180 states [2018-07-23 13:53:45,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2018-07-23 13:53:45,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:53:45,175 INFO L87 Difference]: Start difference. First operand 358 states and 358 transitions. Second operand 180 states. [2018-07-23 13:53:45,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:45,659 INFO L93 Difference]: Finished difference Result 361 states and 361 transitions. [2018-07-23 13:53:45,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2018-07-23 13:53:45,659 INFO L78 Accepts]: Start accepts. Automaton has 180 states. Word has length 357 [2018-07-23 13:53:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:45,660 INFO L225 Difference]: With dead ends: 361 [2018-07-23 13:53:45,660 INFO L226 Difference]: Without dead ends: 360 [2018-07-23 13:53:45,662 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2018-07-23 13:53:45,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2018-07-23 13:53:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2018-07-23 13:53:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-07-23 13:53:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 360 transitions. [2018-07-23 13:53:45,666 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 360 transitions. Word has length 357 [2018-07-23 13:53:45,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:45,667 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 360 transitions. [2018-07-23 13:53:45,667 INFO L472 AbstractCegarLoop]: Interpolant automaton has 180 states. [2018-07-23 13:53:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 360 transitions. [2018-07-23 13:53:45,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2018-07-23 13:53:45,668 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:45,668 INFO L357 BasicCegarLoop]: trace histogram [179, 178, 1, 1] [2018-07-23 13:53:45,668 INFO L414 AbstractCegarLoop]: === Iteration 179 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:45,668 INFO L82 PathProgramCache]: Analyzing trace with hash 564555332, now seen corresponding path program 178 times [2018-07-23 13:53:45,668 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 31862 backedges. 0 proven. 31862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,851 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:46,851 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2018-07-23 13:53:46,851 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:46,852 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 13:53:46,852 INFO L185 omatonBuilderFactory]: Interpolants [146951#true, 146954#(<= (+ main_offset 1044) main_length), 146955#(<= (+ main_offset 1040) main_length), 146952#false, 146953#(<= (+ main_offset 1048) main_length), 146958#(<= (+ main_offset 1028) main_length), 146959#(<= (+ main_offset 1024) main_length), 146956#(<= (+ main_offset 1036) main_length), 146957#(<= (+ main_offset 1032) main_length), 146962#(<= (+ main_offset 1012) main_length), 146963#(<= (+ main_offset 1008) main_length), 146960#(<= (+ main_offset 1020) main_length), 146961#(<= (+ main_offset 1016) main_length), 146966#(<= (+ main_offset 996) main_length), 146967#(<= (+ main_offset 992) main_length), 146964#(<= (+ main_offset 1004) main_length), 146965#(<= (+ main_offset 1000) main_length), 146970#(<= (+ main_offset 980) main_length), 146971#(<= (+ main_offset 976) main_length), 146968#(<= (+ main_offset 988) main_length), 146969#(<= (+ main_offset 984) main_length), 146974#(<= (+ main_offset 964) main_length), 146975#(<= (+ main_offset 960) main_length), 146972#(<= (+ main_offset 972) main_length), 146973#(<= (+ main_offset 968) main_length), 146978#(<= (+ main_offset 948) main_length), 146979#(<= (+ main_offset 944) main_length), 146976#(<= (+ main_offset 956) main_length), 146977#(<= (+ main_offset 952) main_length), 146982#(<= (+ main_offset 932) main_length), 146983#(<= (+ main_offset 928) main_length), 146980#(<= (+ main_offset 940) main_length), 146981#(<= (+ main_offset 936) main_length), 146986#(<= (+ main_offset 916) main_length), 146987#(<= (+ main_offset 912) main_length), 146984#(<= (+ main_offset 924) main_length), 146985#(<= (+ main_offset 920) main_length), 146990#(<= (+ main_offset 900) main_length), 146991#(<= (+ main_offset 896) main_length), 146988#(<= (+ main_offset 908) main_length), 146989#(<= (+ main_offset 904) main_length), 146994#(<= (+ main_offset 884) main_length), 146995#(<= (+ main_offset 880) main_length), 146992#(<= (+ main_offset 892) main_length), 146993#(<= (+ main_offset 888) main_length), 146998#(<= (+ main_offset 868) main_length), 146999#(<= (+ main_offset 864) main_length), 146996#(<= (+ main_offset 876) main_length), 146997#(<= (+ main_offset 872) main_length), 147002#(<= (+ main_offset 852) main_length), 147003#(<= (+ main_offset 848) main_length), 147000#(<= (+ main_offset 860) main_length), 147001#(<= (+ main_offset 856) main_length), 147006#(<= (+ main_offset 836) main_length), 147007#(<= (+ main_offset 832) main_length), 147004#(<= (+ main_offset 844) main_length), 147005#(<= (+ main_offset 840) main_length), 147010#(<= (+ main_offset 820) main_length), 147011#(<= (+ main_offset 816) main_length), 147008#(<= (+ main_offset 828) main_length), 147009#(<= (+ main_offset 824) main_length), 147014#(<= (+ main_offset 804) main_length), 147015#(<= (+ main_offset 800) main_length), 147012#(<= (+ main_offset 812) main_length), 147013#(<= (+ main_offset 808) main_length), 147018#(<= (+ main_offset 788) main_length), 147019#(<= (+ main_offset 784) main_length), 147016#(<= (+ main_offset 796) main_length), 147017#(<= (+ main_offset 792) main_length), 147022#(<= (+ main_offset 772) main_length), 147023#(<= (+ main_offset 768) main_length), 147020#(<= (+ main_offset 780) main_length), 147021#(<= (+ main_offset 776) main_length), 147026#(<= (+ main_offset 756) main_length), 147027#(<= (+ main_offset 752) main_length), 147024#(<= (+ main_offset 764) main_length), 147025#(<= (+ main_offset 760) main_length), 147030#(<= (+ main_offset 740) main_length), 147031#(<= (+ main_offset 736) main_length), 147028#(<= (+ main_offset 748) main_length), 147029#(<= (+ main_offset 744) main_length), 147034#(<= (+ main_offset 724) main_length), 147035#(<= (+ main_offset 720) main_length), 147032#(<= (+ main_offset 732) main_length), 147033#(<= (+ main_offset 728) main_length), 147038#(<= (+ main_offset 708) main_length), 147039#(<= (+ main_offset 704) main_length), 147036#(<= (+ main_offset 716) main_length), 147037#(<= (+ main_offset 712) main_length), 147042#(<= (+ main_offset 692) main_length), 147043#(<= (+ main_offset 688) main_length), 147040#(<= (+ main_offset 700) main_length), 147041#(<= (+ main_offset 696) main_length), 147046#(<= (+ main_offset 676) main_length), 147047#(<= (+ main_offset 672) main_length), 147044#(<= (+ main_offset 684) main_length), 147045#(<= (+ main_offset 680) main_length), 147050#(<= (+ main_offset 660) main_length), 147051#(<= (+ main_offset 656) main_length), 147048#(<= (+ main_offset 668) main_length), 147049#(<= (+ main_offset 664) main_length), 147054#(<= (+ main_offset 644) main_length), 147055#(<= (+ main_offset 640) main_length), 147052#(<= (+ main_offset 652) main_length), 147053#(<= (+ main_offset 648) main_length), 147058#(<= (+ main_offset 628) main_length), 147059#(<= (+ main_offset 624) main_length), 147056#(<= (+ main_offset 636) main_length), 147057#(<= (+ main_offset 632) main_length), 147062#(<= (+ main_offset 612) main_length), 147063#(<= (+ main_offset 608) main_length), 147060#(<= (+ main_offset 620) main_length), 147061#(<= (+ main_offset 616) main_length), 147066#(<= (+ main_offset 596) main_length), 147067#(<= (+ main_offset 592) main_length), 147064#(<= (+ main_offset 604) main_length), 147065#(<= (+ main_offset 600) main_length), 147070#(<= (+ main_offset 580) main_length), 147071#(<= (+ main_offset 576) main_length), 147068#(<= (+ main_offset 588) main_length), 147069#(<= (+ main_offset 584) main_length), 147074#(<= (+ main_offset 564) main_length), 147075#(<= (+ main_offset 560) main_length), 147072#(<= (+ main_offset 572) main_length), 147073#(<= (+ main_offset 568) main_length), 147078#(<= (+ main_offset 548) main_length), 147079#(<= (+ main_offset 544) main_length), 147076#(<= (+ main_offset 556) main_length), 147077#(<= (+ main_offset 552) main_length), 147082#(<= (+ main_offset 532) main_length), 147083#(<= (+ main_offset 528) main_length), 147080#(<= (+ main_offset 540) main_length), 147081#(<= (+ main_offset 536) main_length), 147086#(<= (+ main_offset 516) main_length), 147087#(<= (+ main_offset 512) main_length), 147084#(<= (+ main_offset 524) main_length), 147085#(<= (+ main_offset 520) main_length), 147090#(<= (+ main_offset 500) main_length), 147091#(<= (+ main_offset 496) main_length), 147088#(<= (+ main_offset 508) main_length), 147089#(<= (+ main_offset 504) main_length), 147094#(<= (+ main_offset 484) main_length), 147095#(<= (+ main_offset 480) main_length), 147092#(<= (+ main_offset 492) main_length), 147093#(<= (+ main_offset 488) main_length), 147098#(<= (+ main_offset 468) main_length), 147099#(<= (+ main_offset 464) main_length), 147096#(<= (+ main_offset 476) main_length), 147097#(<= (+ main_offset 472) main_length), 147102#(<= (+ main_offset 452) main_length), 147103#(<= (+ main_offset 448) main_length), 147100#(<= (+ main_offset 460) main_length), 147101#(<= (+ main_offset 456) main_length), 147106#(<= (+ main_offset 436) main_length), 147107#(<= (+ main_offset 432) main_length), 147104#(<= (+ main_offset 444) main_length), 147105#(<= (+ main_offset 440) main_length), 147110#(<= (+ main_offset 420) main_length), 147111#(<= (+ main_offset 416) main_length), 147108#(<= (+ main_offset 428) main_length), 147109#(<= (+ main_offset 424) main_length), 147114#(<= (+ main_offset 404) main_length), 147115#(<= (+ main_offset 400) main_length), 147112#(<= (+ main_offset 412) main_length), 147113#(<= (+ main_offset 408) main_length), 147118#(<= (+ main_offset 388) main_length), 147119#(<= (+ main_offset 384) main_length), 147116#(<= (+ main_offset 396) main_length), 147117#(<= (+ main_offset 392) main_length), 147122#(<= (+ main_offset 372) main_length), 147123#(<= (+ main_offset 368) main_length), 147120#(<= (+ main_offset 380) main_length), 147121#(<= (+ main_offset 376) main_length), 147126#(<= (+ main_offset 356) main_length), 147127#(<= (+ main_offset 352) main_length), 147124#(<= (+ main_offset 364) main_length), 147125#(<= (+ main_offset 360) main_length), 147130#(<= (+ main_offset 340) main_length), 147131#(<= (+ main_offset 336) main_length), 147128#(<= (+ main_offset 348) main_length), 147129#(<= (+ main_offset 344) main_length)] [2018-07-23 13:53:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 31862 backedges. 0 proven. 31862 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:46,854 INFO L450 AbstractCegarLoop]: Interpolant automaton has 181 states [2018-07-23 13:53:46,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2018-07-23 13:53:46,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:53:46,857 INFO L87 Difference]: Start difference. First operand 360 states and 360 transitions. Second operand 181 states. [2018-07-23 13:53:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:48,268 INFO L93 Difference]: Finished difference Result 363 states and 363 transitions. [2018-07-23 13:53:48,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2018-07-23 13:53:48,268 INFO L78 Accepts]: Start accepts. Automaton has 181 states. Word has length 359 [2018-07-23 13:53:48,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:48,269 INFO L225 Difference]: With dead ends: 363 [2018-07-23 13:53:48,269 INFO L226 Difference]: Without dead ends: 362 [2018-07-23 13:53:48,271 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16290, Invalid=16290, Unknown=0, NotChecked=0, Total=32580 [2018-07-23 13:53:48,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-07-23 13:53:48,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2018-07-23 13:53:48,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-07-23 13:53:48,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 362 transitions. [2018-07-23 13:53:48,275 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 362 transitions. Word has length 359 [2018-07-23 13:53:48,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:48,275 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 362 transitions. [2018-07-23 13:53:48,275 INFO L472 AbstractCegarLoop]: Interpolant automaton has 181 states. [2018-07-23 13:53:48,275 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 362 transitions. [2018-07-23 13:53:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-07-23 13:53:48,276 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:48,277 INFO L357 BasicCegarLoop]: trace histogram [180, 179, 1, 1] [2018-07-23 13:53:48,277 INFO L414 AbstractCegarLoop]: === Iteration 180 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:48,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1371795846, now seen corresponding path program 179 times [2018-07-23 13:53:48,277 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 32220 backedges. 0 proven. 32220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,498 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:49,498 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [180] total 180 [2018-07-23 13:53:49,498 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,499 INFO L185 omatonBuilderFactory]: Interpolants [148738#(<= (+ main_offset 432) main_length), 148739#(<= (+ main_offset 428) main_length), 148736#(<= (+ main_offset 440) main_length), 148737#(<= (+ main_offset 436) main_length), 148742#(<= (+ main_offset 416) main_length), 148743#(<= (+ main_offset 412) main_length), 148740#(<= (+ main_offset 424) main_length), 148741#(<= (+ main_offset 420) main_length), 148746#(<= (+ main_offset 400) main_length), 148747#(<= (+ main_offset 396) main_length), 148744#(<= (+ main_offset 408) main_length), 148745#(<= (+ main_offset 404) main_length), 148750#(<= (+ main_offset 384) main_length), 148751#(<= (+ main_offset 380) main_length), 148748#(<= (+ main_offset 392) main_length), 148749#(<= (+ main_offset 388) main_length), 148754#(<= (+ main_offset 368) main_length), 148755#(<= (+ main_offset 364) main_length), 148752#(<= (+ main_offset 376) main_length), 148753#(<= (+ main_offset 372) main_length), 148758#(<= (+ main_offset 352) main_length), 148759#(<= (+ main_offset 348) main_length), 148756#(<= (+ main_offset 360) main_length), 148757#(<= (+ main_offset 356) main_length), 148762#(<= (+ main_offset 336) main_length), 148763#(<= (+ main_offset 332) main_length), 148760#(<= (+ main_offset 344) main_length), 148761#(<= (+ main_offset 340) main_length), 148582#true, 148583#false, 148586#(<= (+ main_offset 1040) main_length), 148587#(<= (+ main_offset 1036) main_length), 148584#(<= (+ main_offset 1048) main_length), 148585#(<= (+ main_offset 1044) main_length), 148590#(<= (+ main_offset 1024) main_length), 148591#(<= (+ main_offset 1020) main_length), 148588#(<= (+ main_offset 1032) main_length), 148589#(<= (+ main_offset 1028) main_length), 148594#(<= (+ main_offset 1008) main_length), 148595#(<= (+ main_offset 1004) main_length), 148592#(<= (+ main_offset 1016) main_length), 148593#(<= (+ main_offset 1012) main_length), 148598#(<= (+ main_offset 992) main_length), 148599#(<= (+ main_offset 988) main_length), 148596#(<= (+ main_offset 1000) main_length), 148597#(<= (+ main_offset 996) main_length), 148602#(<= (+ main_offset 976) main_length), 148603#(<= (+ main_offset 972) main_length), 148600#(<= (+ main_offset 984) main_length), 148601#(<= (+ main_offset 980) main_length), 148606#(<= (+ main_offset 960) main_length), 148607#(<= (+ main_offset 956) main_length), 148604#(<= (+ main_offset 968) main_length), 148605#(<= (+ main_offset 964) main_length), 148610#(<= (+ main_offset 944) main_length), 148611#(<= (+ main_offset 940) main_length), 148608#(<= (+ main_offset 952) main_length), 148609#(<= (+ main_offset 948) main_length), 148614#(<= (+ main_offset 928) main_length), 148615#(<= (+ main_offset 924) main_length), 148612#(<= (+ main_offset 936) main_length), 148613#(<= (+ main_offset 932) main_length), 148618#(<= (+ main_offset 912) main_length), 148619#(<= (+ main_offset 908) main_length), 148616#(<= (+ main_offset 920) main_length), 148617#(<= (+ main_offset 916) main_length), 148622#(<= (+ main_offset 896) main_length), 148623#(<= (+ main_offset 892) main_length), 148620#(<= (+ main_offset 904) main_length), 148621#(<= (+ main_offset 900) main_length), 148626#(<= (+ main_offset 880) main_length), 148627#(<= (+ main_offset 876) main_length), 148624#(<= (+ main_offset 888) main_length), 148625#(<= (+ main_offset 884) main_length), 148630#(<= (+ main_offset 864) main_length), 148631#(<= (+ main_offset 860) main_length), 148628#(<= (+ main_offset 872) main_length), 148629#(<= (+ main_offset 868) main_length), 148634#(<= (+ main_offset 848) main_length), 148635#(<= (+ main_offset 844) main_length), 148632#(<= (+ main_offset 856) main_length), 148633#(<= (+ main_offset 852) main_length), 148638#(<= (+ main_offset 832) main_length), 148639#(<= (+ main_offset 828) main_length), 148636#(<= (+ main_offset 840) main_length), 148637#(<= (+ main_offset 836) main_length), 148642#(<= (+ main_offset 816) main_length), 148643#(<= (+ main_offset 812) main_length), 148640#(<= (+ main_offset 824) main_length), 148641#(<= (+ main_offset 820) main_length), 148646#(<= (+ main_offset 800) main_length), 148647#(<= (+ main_offset 796) main_length), 148644#(<= (+ main_offset 808) main_length), 148645#(<= (+ main_offset 804) main_length), 148650#(<= (+ main_offset 784) main_length), 148651#(<= (+ main_offset 780) main_length), 148648#(<= (+ main_offset 792) main_length), 148649#(<= (+ main_offset 788) main_length), 148654#(<= (+ main_offset 768) main_length), 148655#(<= (+ main_offset 764) main_length), 148652#(<= (+ main_offset 776) main_length), 148653#(<= (+ main_offset 772) main_length), 148658#(<= (+ main_offset 752) main_length), 148659#(<= (+ main_offset 748) main_length), 148656#(<= (+ main_offset 760) main_length), 148657#(<= (+ main_offset 756) main_length), 148662#(<= (+ main_offset 736) main_length), 148663#(<= (+ main_offset 732) main_length), 148660#(<= (+ main_offset 744) main_length), 148661#(<= (+ main_offset 740) main_length), 148666#(<= (+ main_offset 720) main_length), 148667#(<= (+ main_offset 716) main_length), 148664#(<= (+ main_offset 728) main_length), 148665#(<= (+ main_offset 724) main_length), 148670#(<= (+ main_offset 704) main_length), 148671#(<= (+ main_offset 700) main_length), 148668#(<= (+ main_offset 712) main_length), 148669#(<= (+ main_offset 708) main_length), 148674#(<= (+ main_offset 688) main_length), 148675#(<= (+ main_offset 684) main_length), 148672#(<= (+ main_offset 696) main_length), 148673#(<= (+ main_offset 692) main_length), 148678#(<= (+ main_offset 672) main_length), 148679#(<= (+ main_offset 668) main_length), 148676#(<= (+ main_offset 680) main_length), 148677#(<= (+ main_offset 676) main_length), 148682#(<= (+ main_offset 656) main_length), 148683#(<= (+ main_offset 652) main_length), 148680#(<= (+ main_offset 664) main_length), 148681#(<= (+ main_offset 660) main_length), 148686#(<= (+ main_offset 640) main_length), 148687#(<= (+ main_offset 636) main_length), 148684#(<= (+ main_offset 648) main_length), 148685#(<= (+ main_offset 644) main_length), 148690#(<= (+ main_offset 624) main_length), 148691#(<= (+ main_offset 620) main_length), 148688#(<= (+ main_offset 632) main_length), 148689#(<= (+ main_offset 628) main_length), 148694#(<= (+ main_offset 608) main_length), 148695#(<= (+ main_offset 604) main_length), 148692#(<= (+ main_offset 616) main_length), 148693#(<= (+ main_offset 612) main_length), 148698#(<= (+ main_offset 592) main_length), 148699#(<= (+ main_offset 588) main_length), 148696#(<= (+ main_offset 600) main_length), 148697#(<= (+ main_offset 596) main_length), 148702#(<= (+ main_offset 576) main_length), 148703#(<= (+ main_offset 572) main_length), 148700#(<= (+ main_offset 584) main_length), 148701#(<= (+ main_offset 580) main_length), 148706#(<= (+ main_offset 560) main_length), 148707#(<= (+ main_offset 556) main_length), 148704#(<= (+ main_offset 568) main_length), 148705#(<= (+ main_offset 564) main_length), 148710#(<= (+ main_offset 544) main_length), 148711#(<= (+ main_offset 540) main_length), 148708#(<= (+ main_offset 552) main_length), 148709#(<= (+ main_offset 548) main_length), 148714#(<= (+ main_offset 528) main_length), 148715#(<= (+ main_offset 524) main_length), 148712#(<= (+ main_offset 536) main_length), 148713#(<= (+ main_offset 532) main_length), 148718#(<= (+ main_offset 512) main_length), 148719#(<= (+ main_offset 508) main_length), 148716#(<= (+ main_offset 520) main_length), 148717#(<= (+ main_offset 516) main_length), 148722#(<= (+ main_offset 496) main_length), 148723#(<= (+ main_offset 492) main_length), 148720#(<= (+ main_offset 504) main_length), 148721#(<= (+ main_offset 500) main_length), 148726#(<= (+ main_offset 480) main_length), 148727#(<= (+ main_offset 476) main_length), 148724#(<= (+ main_offset 488) main_length), 148725#(<= (+ main_offset 484) main_length), 148730#(<= (+ main_offset 464) main_length), 148731#(<= (+ main_offset 460) main_length), 148728#(<= (+ main_offset 472) main_length), 148729#(<= (+ main_offset 468) main_length), 148734#(<= (+ main_offset 448) main_length), 148735#(<= (+ main_offset 444) main_length), 148732#(<= (+ main_offset 456) main_length), 148733#(<= (+ main_offset 452) main_length)] [2018-07-23 13:53:49,500 INFO L134 CoverageAnalysis]: Checked inductivity of 32220 backedges. 0 proven. 32220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:49,500 INFO L450 AbstractCegarLoop]: Interpolant automaton has 182 states [2018-07-23 13:53:49,503 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2018-07-23 13:53:49,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16471, Invalid=16471, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:53:49,504 INFO L87 Difference]: Start difference. First operand 362 states and 362 transitions. Second operand 182 states. [2018-07-23 13:53:50,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:50,326 INFO L93 Difference]: Finished difference Result 365 states and 365 transitions. [2018-07-23 13:53:50,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2018-07-23 13:53:50,326 INFO L78 Accepts]: Start accepts. Automaton has 182 states. Word has length 361 [2018-07-23 13:53:50,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:50,327 INFO L225 Difference]: With dead ends: 365 [2018-07-23 13:53:50,327 INFO L226 Difference]: Without dead ends: 364 [2018-07-23 13:53:50,329 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=16471, Invalid=16471, Unknown=0, NotChecked=0, Total=32942 [2018-07-23 13:53:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-07-23 13:53:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2018-07-23 13:53:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2018-07-23 13:53:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 364 transitions. [2018-07-23 13:53:50,333 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 364 transitions. Word has length 361 [2018-07-23 13:53:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:50,333 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 364 transitions. [2018-07-23 13:53:50,333 INFO L472 AbstractCegarLoop]: Interpolant automaton has 182 states. [2018-07-23 13:53:50,333 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 364 transitions. [2018-07-23 13:53:50,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-07-23 13:53:50,334 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:50,335 INFO L357 BasicCegarLoop]: trace histogram [181, 180, 1, 1] [2018-07-23 13:53:50,335 INFO L414 AbstractCegarLoop]: === Iteration 181 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:50,335 INFO L82 PathProgramCache]: Analyzing trace with hash -259150776, now seen corresponding path program 180 times [2018-07-23 13:53:50,335 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:51,580 INFO L134 CoverageAnalysis]: Checked inductivity of 32580 backedges. 0 proven. 32580 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:51,581 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:51,581 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [181] total 181 [2018-07-23 13:53:51,581 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:51,582 INFO L185 omatonBuilderFactory]: Interpolants [150274#(<= (+ main_offset 848) main_length), 150275#(<= (+ main_offset 844) main_length), 150272#(<= (+ main_offset 856) main_length), 150273#(<= (+ main_offset 852) main_length), 150278#(<= (+ main_offset 832) main_length), 150279#(<= (+ main_offset 828) main_length), 150276#(<= (+ main_offset 840) main_length), 150277#(<= (+ main_offset 836) main_length), 150282#(<= (+ main_offset 816) main_length), 150283#(<= (+ main_offset 812) main_length), 150280#(<= (+ main_offset 824) main_length), 150281#(<= (+ main_offset 820) main_length), 150286#(<= (+ main_offset 800) main_length), 150287#(<= (+ main_offset 796) main_length), 150284#(<= (+ main_offset 808) main_length), 150285#(<= (+ main_offset 804) main_length), 150290#(<= (+ main_offset 784) main_length), 150291#(<= (+ main_offset 780) main_length), 150288#(<= (+ main_offset 792) main_length), 150289#(<= (+ main_offset 788) main_length), 150294#(<= (+ main_offset 768) main_length), 150295#(<= (+ main_offset 764) main_length), 150292#(<= (+ main_offset 776) main_length), 150293#(<= (+ main_offset 772) main_length), 150298#(<= (+ main_offset 752) main_length), 150299#(<= (+ main_offset 748) main_length), 150296#(<= (+ main_offset 760) main_length), 150297#(<= (+ main_offset 756) main_length), 150302#(<= (+ main_offset 736) main_length), 150303#(<= (+ main_offset 732) main_length), 150300#(<= (+ main_offset 744) main_length), 150301#(<= (+ main_offset 740) main_length), 150306#(<= (+ main_offset 720) main_length), 150307#(<= (+ main_offset 716) main_length), 150304#(<= (+ main_offset 728) main_length), 150305#(<= (+ main_offset 724) main_length), 150310#(<= (+ main_offset 704) main_length), 150311#(<= (+ main_offset 700) main_length), 150308#(<= (+ main_offset 712) main_length), 150309#(<= (+ main_offset 708) main_length), 150314#(<= (+ main_offset 688) main_length), 150315#(<= (+ main_offset 684) main_length), 150312#(<= (+ main_offset 696) main_length), 150313#(<= (+ main_offset 692) main_length), 150318#(<= (+ main_offset 672) main_length), 150319#(<= (+ main_offset 668) main_length), 150316#(<= (+ main_offset 680) main_length), 150317#(<= (+ main_offset 676) main_length), 150322#(<= (+ main_offset 656) main_length), 150323#(<= (+ main_offset 652) main_length), 150320#(<= (+ main_offset 664) main_length), 150321#(<= (+ main_offset 660) main_length), 150326#(<= (+ main_offset 640) main_length), 150327#(<= (+ main_offset 636) main_length), 150324#(<= (+ main_offset 648) main_length), 150325#(<= (+ main_offset 644) main_length), 150330#(<= (+ main_offset 624) main_length), 150331#(<= (+ main_offset 620) main_length), 150328#(<= (+ main_offset 632) main_length), 150329#(<= (+ main_offset 628) main_length), 150334#(<= (+ main_offset 608) main_length), 150335#(<= (+ main_offset 604) main_length), 150332#(<= (+ main_offset 616) main_length), 150333#(<= (+ main_offset 612) main_length), 150338#(<= (+ main_offset 592) main_length), 150339#(<= (+ main_offset 588) main_length), 150336#(<= (+ main_offset 600) main_length), 150337#(<= (+ main_offset 596) main_length), 150342#(<= (+ main_offset 576) main_length), 150343#(<= (+ main_offset 572) main_length), 150340#(<= (+ main_offset 584) main_length), 150341#(<= (+ main_offset 580) main_length), 150346#(<= (+ main_offset 560) main_length), 150347#(<= (+ main_offset 556) main_length), 150344#(<= (+ main_offset 568) main_length), 150345#(<= (+ main_offset 564) main_length), 150350#(<= (+ main_offset 544) main_length), 150351#(<= (+ main_offset 540) main_length), 150348#(<= (+ main_offset 552) main_length), 150349#(<= (+ main_offset 548) main_length), 150354#(<= (+ main_offset 528) main_length), 150355#(<= (+ main_offset 524) main_length), 150352#(<= (+ main_offset 536) main_length), 150353#(<= (+ main_offset 532) main_length), 150358#(<= (+ main_offset 512) main_length), 150359#(<= (+ main_offset 508) main_length), 150356#(<= (+ main_offset 520) main_length), 150357#(<= (+ main_offset 516) main_length), 150362#(<= (+ main_offset 496) main_length), 150363#(<= (+ main_offset 492) main_length), 150360#(<= (+ main_offset 504) main_length), 150361#(<= (+ main_offset 500) main_length), 150366#(<= (+ main_offset 480) main_length), 150367#(<= (+ main_offset 476) main_length), 150364#(<= (+ main_offset 488) main_length), 150365#(<= (+ main_offset 484) main_length), 150370#(<= (+ main_offset 464) main_length), 150371#(<= (+ main_offset 460) main_length), 150368#(<= (+ main_offset 472) main_length), 150369#(<= (+ main_offset 468) main_length), 150374#(<= (+ main_offset 448) main_length), 150375#(<= (+ main_offset 444) main_length), 150372#(<= (+ main_offset 456) main_length), 150373#(<= (+ main_offset 452) main_length), 150378#(<= (+ main_offset 432) main_length), 150379#(<= (+ main_offset 428) main_length), 150376#(<= (+ main_offset 440) main_length), 150377#(<= (+ main_offset 436) main_length), 150382#(<= (+ main_offset 416) main_length), 150383#(<= (+ main_offset 412) main_length), 150380#(<= (+ main_offset 424) main_length), 150381#(<= (+ main_offset 420) main_length), 150386#(<= (+ main_offset 400) main_length), 150387#(<= (+ main_offset 396) main_length), 150384#(<= (+ main_offset 408) main_length), 150385#(<= (+ main_offset 404) main_length), 150390#(<= (+ main_offset 384) main_length), 150391#(<= (+ main_offset 380) main_length), 150388#(<= (+ main_offset 392) main_length), 150389#(<= (+ main_offset 388) main_length), 150394#(<= (+ main_offset 368) main_length), 150395#(<= (+ main_offset 364) main_length), 150392#(<= (+ main_offset 376) main_length), 150393#(<= (+ main_offset 372) main_length), 150398#(<= (+ main_offset 352) main_length), 150399#(<= (+ main_offset 348) main_length), 150396#(<= (+ main_offset 360) main_length), 150397#(<= (+ main_offset 356) main_length), 150402#(<= (+ main_offset 336) main_length), 150403#(<= (+ main_offset 332) main_length), 150400#(<= (+ main_offset 344) main_length), 150401#(<= (+ main_offset 340) main_length), 150404#(<= (+ main_offset 328) main_length), 150222#true, 150223#false, 150226#(<= (+ main_offset 1040) main_length), 150227#(<= (+ main_offset 1036) main_length), 150224#(<= (+ main_offset 1048) main_length), 150225#(<= (+ main_offset 1044) main_length), 150230#(<= (+ main_offset 1024) main_length), 150231#(<= (+ main_offset 1020) main_length), 150228#(<= (+ main_offset 1032) main_length), 150229#(<= (+ main_offset 1028) main_length), 150234#(<= (+ main_offset 1008) main_length), 150235#(<= (+ main_offset 1004) main_length), 150232#(<= (+ main_offset 1016) main_length), 150233#(<= (+ main_offset 1012) main_length), 150238#(<= (+ main_offset 992) main_length), 150239#(<= (+ main_offset 988) main_length), 150236#(<= (+ main_offset 1000) main_length), 150237#(<= (+ main_offset 996) main_length), 150242#(<= (+ main_offset 976) main_length), 150243#(<= (+ main_offset 972) main_length), 150240#(<= (+ main_offset 984) main_length), 150241#(<= (+ main_offset 980) main_length), 150246#(<= (+ main_offset 960) main_length), 150247#(<= (+ main_offset 956) main_length), 150244#(<= (+ main_offset 968) main_length), 150245#(<= (+ main_offset 964) main_length), 150250#(<= (+ main_offset 944) main_length), 150251#(<= (+ main_offset 940) main_length), 150248#(<= (+ main_offset 952) main_length), 150249#(<= (+ main_offset 948) main_length), 150254#(<= (+ main_offset 928) main_length), 150255#(<= (+ main_offset 924) main_length), 150252#(<= (+ main_offset 936) main_length), 150253#(<= (+ main_offset 932) main_length), 150258#(<= (+ main_offset 912) main_length), 150259#(<= (+ main_offset 908) main_length), 150256#(<= (+ main_offset 920) main_length), 150257#(<= (+ main_offset 916) main_length), 150262#(<= (+ main_offset 896) main_length), 150263#(<= (+ main_offset 892) main_length), 150260#(<= (+ main_offset 904) main_length), 150261#(<= (+ main_offset 900) main_length), 150266#(<= (+ main_offset 880) main_length), 150267#(<= (+ main_offset 876) main_length), 150264#(<= (+ main_offset 888) main_length), 150265#(<= (+ main_offset 884) main_length), 150270#(<= (+ main_offset 864) main_length), 150271#(<= (+ main_offset 860) main_length), 150268#(<= (+ main_offset 872) main_length), 150269#(<= (+ main_offset 868) main_length)] [2018-07-23 13:53:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32580 backedges. 0 proven. 32580 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:51,583 INFO L450 AbstractCegarLoop]: Interpolant automaton has 183 states [2018-07-23 13:53:51,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2018-07-23 13:53:51,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16653, Invalid=16653, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:53:51,587 INFO L87 Difference]: Start difference. First operand 364 states and 364 transitions. Second operand 183 states. [2018-07-23 13:53:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:52,504 INFO L93 Difference]: Finished difference Result 367 states and 367 transitions. [2018-07-23 13:53:52,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2018-07-23 13:53:52,504 INFO L78 Accepts]: Start accepts. Automaton has 183 states. Word has length 363 [2018-07-23 13:53:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:52,505 INFO L225 Difference]: With dead ends: 367 [2018-07-23 13:53:52,505 INFO L226 Difference]: Without dead ends: 366 [2018-07-23 13:53:52,507 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16653, Invalid=16653, Unknown=0, NotChecked=0, Total=33306 [2018-07-23 13:53:52,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-07-23 13:53:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2018-07-23 13:53:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-07-23 13:53:52,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 366 transitions. [2018-07-23 13:53:52,511 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 366 transitions. Word has length 363 [2018-07-23 13:53:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:52,511 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 366 transitions. [2018-07-23 13:53:52,511 INFO L472 AbstractCegarLoop]: Interpolant automaton has 183 states. [2018-07-23 13:53:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 366 transitions. [2018-07-23 13:53:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2018-07-23 13:53:52,512 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:52,513 INFO L357 BasicCegarLoop]: trace histogram [182, 181, 1, 1] [2018-07-23 13:53:52,513 INFO L414 AbstractCegarLoop]: === Iteration 182 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash 64208522, now seen corresponding path program 181 times [2018-07-23 13:53:52,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:53,739 INFO L134 CoverageAnalysis]: Checked inductivity of 32942 backedges. 0 proven. 32942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:53,739 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:53,739 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [182] total 182 [2018-07-23 13:53:53,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:53,739 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 13:53:53,740 INFO L185 omatonBuilderFactory]: Interpolants [151871#true, 151874#(<= (+ main_offset 1044) main_length), 151875#(<= (+ main_offset 1040) main_length), 151872#false, 151873#(<= (+ main_offset 1048) main_length), 151878#(<= (+ main_offset 1028) main_length), 151879#(<= (+ main_offset 1024) main_length), 151876#(<= (+ main_offset 1036) main_length), 151877#(<= (+ main_offset 1032) main_length), 151882#(<= (+ main_offset 1012) main_length), 151883#(<= (+ main_offset 1008) main_length), 151880#(<= (+ main_offset 1020) main_length), 151881#(<= (+ main_offset 1016) main_length), 151886#(<= (+ main_offset 996) main_length), 151887#(<= (+ main_offset 992) main_length), 151884#(<= (+ main_offset 1004) main_length), 151885#(<= (+ main_offset 1000) main_length), 151890#(<= (+ main_offset 980) main_length), 151891#(<= (+ main_offset 976) main_length), 151888#(<= (+ main_offset 988) main_length), 151889#(<= (+ main_offset 984) main_length), 151894#(<= (+ main_offset 964) main_length), 151895#(<= (+ main_offset 960) main_length), 151892#(<= (+ main_offset 972) main_length), 151893#(<= (+ main_offset 968) main_length), 151898#(<= (+ main_offset 948) main_length), 151899#(<= (+ main_offset 944) main_length), 151896#(<= (+ main_offset 956) main_length), 151897#(<= (+ main_offset 952) main_length), 151902#(<= (+ main_offset 932) main_length), 151903#(<= (+ main_offset 928) main_length), 151900#(<= (+ main_offset 940) main_length), 151901#(<= (+ main_offset 936) main_length), 151906#(<= (+ main_offset 916) main_length), 151907#(<= (+ main_offset 912) main_length), 151904#(<= (+ main_offset 924) main_length), 151905#(<= (+ main_offset 920) main_length), 151910#(<= (+ main_offset 900) main_length), 151911#(<= (+ main_offset 896) main_length), 151908#(<= (+ main_offset 908) main_length), 151909#(<= (+ main_offset 904) main_length), 151914#(<= (+ main_offset 884) main_length), 151915#(<= (+ main_offset 880) main_length), 151912#(<= (+ main_offset 892) main_length), 151913#(<= (+ main_offset 888) main_length), 151918#(<= (+ main_offset 868) main_length), 151919#(<= (+ main_offset 864) main_length), 151916#(<= (+ main_offset 876) main_length), 151917#(<= (+ main_offset 872) main_length), 151922#(<= (+ main_offset 852) main_length), 151923#(<= (+ main_offset 848) main_length), 151920#(<= (+ main_offset 860) main_length), 151921#(<= (+ main_offset 856) main_length), 151926#(<= (+ main_offset 836) main_length), 151927#(<= (+ main_offset 832) main_length), 151924#(<= (+ main_offset 844) main_length), 151925#(<= (+ main_offset 840) main_length), 151930#(<= (+ main_offset 820) main_length), 151931#(<= (+ main_offset 816) main_length), 151928#(<= (+ main_offset 828) main_length), 151929#(<= (+ main_offset 824) main_length), 151934#(<= (+ main_offset 804) main_length), 151935#(<= (+ main_offset 800) main_length), 151932#(<= (+ main_offset 812) main_length), 151933#(<= (+ main_offset 808) main_length), 151938#(<= (+ main_offset 788) main_length), 151939#(<= (+ main_offset 784) main_length), 151936#(<= (+ main_offset 796) main_length), 151937#(<= (+ main_offset 792) main_length), 151942#(<= (+ main_offset 772) main_length), 151943#(<= (+ main_offset 768) main_length), 151940#(<= (+ main_offset 780) main_length), 151941#(<= (+ main_offset 776) main_length), 151946#(<= (+ main_offset 756) main_length), 151947#(<= (+ main_offset 752) main_length), 151944#(<= (+ main_offset 764) main_length), 151945#(<= (+ main_offset 760) main_length), 151950#(<= (+ main_offset 740) main_length), 151951#(<= (+ main_offset 736) main_length), 151948#(<= (+ main_offset 748) main_length), 151949#(<= (+ main_offset 744) main_length), 151954#(<= (+ main_offset 724) main_length), 151955#(<= (+ main_offset 720) main_length), 151952#(<= (+ main_offset 732) main_length), 151953#(<= (+ main_offset 728) main_length), 151958#(<= (+ main_offset 708) main_length), 151959#(<= (+ main_offset 704) main_length), 151956#(<= (+ main_offset 716) main_length), 151957#(<= (+ main_offset 712) main_length), 151962#(<= (+ main_offset 692) main_length), 151963#(<= (+ main_offset 688) main_length), 151960#(<= (+ main_offset 700) main_length), 151961#(<= (+ main_offset 696) main_length), 151966#(<= (+ main_offset 676) main_length), 151967#(<= (+ main_offset 672) main_length), 151964#(<= (+ main_offset 684) main_length), 151965#(<= (+ main_offset 680) main_length), 151970#(<= (+ main_offset 660) main_length), 151971#(<= (+ main_offset 656) main_length), 151968#(<= (+ main_offset 668) main_length), 151969#(<= (+ main_offset 664) main_length), 151974#(<= (+ main_offset 644) main_length), 151975#(<= (+ main_offset 640) main_length), 151972#(<= (+ main_offset 652) main_length), 151973#(<= (+ main_offset 648) main_length), 151978#(<= (+ main_offset 628) main_length), 151979#(<= (+ main_offset 624) main_length), 151976#(<= (+ main_offset 636) main_length), 151977#(<= (+ main_offset 632) main_length), 151982#(<= (+ main_offset 612) main_length), 151983#(<= (+ main_offset 608) main_length), 151980#(<= (+ main_offset 620) main_length), 151981#(<= (+ main_offset 616) main_length), 151986#(<= (+ main_offset 596) main_length), 151987#(<= (+ main_offset 592) main_length), 151984#(<= (+ main_offset 604) main_length), 151985#(<= (+ main_offset 600) main_length), 151990#(<= (+ main_offset 580) main_length), 151991#(<= (+ main_offset 576) main_length), 151988#(<= (+ main_offset 588) main_length), 151989#(<= (+ main_offset 584) main_length), 151994#(<= (+ main_offset 564) main_length), 151995#(<= (+ main_offset 560) main_length), 151992#(<= (+ main_offset 572) main_length), 151993#(<= (+ main_offset 568) main_length), 151998#(<= (+ main_offset 548) main_length), 151999#(<= (+ main_offset 544) main_length), 151996#(<= (+ main_offset 556) main_length), 151997#(<= (+ main_offset 552) main_length), 152002#(<= (+ main_offset 532) main_length), 152003#(<= (+ main_offset 528) main_length), 152000#(<= (+ main_offset 540) main_length), 152001#(<= (+ main_offset 536) main_length), 152006#(<= (+ main_offset 516) main_length), 152007#(<= (+ main_offset 512) main_length), 152004#(<= (+ main_offset 524) main_length), 152005#(<= (+ main_offset 520) main_length), 152010#(<= (+ main_offset 500) main_length), 152011#(<= (+ main_offset 496) main_length), 152008#(<= (+ main_offset 508) main_length), 152009#(<= (+ main_offset 504) main_length), 152014#(<= (+ main_offset 484) main_length), 152015#(<= (+ main_offset 480) main_length), 152012#(<= (+ main_offset 492) main_length), 152013#(<= (+ main_offset 488) main_length), 152018#(<= (+ main_offset 468) main_length), 152019#(<= (+ main_offset 464) main_length), 152016#(<= (+ main_offset 476) main_length), 152017#(<= (+ main_offset 472) main_length), 152022#(<= (+ main_offset 452) main_length), 152023#(<= (+ main_offset 448) main_length), 152020#(<= (+ main_offset 460) main_length), 152021#(<= (+ main_offset 456) main_length), 152026#(<= (+ main_offset 436) main_length), 152027#(<= (+ main_offset 432) main_length), 152024#(<= (+ main_offset 444) main_length), 152025#(<= (+ main_offset 440) main_length), 152030#(<= (+ main_offset 420) main_length), 152031#(<= (+ main_offset 416) main_length), 152028#(<= (+ main_offset 428) main_length), 152029#(<= (+ main_offset 424) main_length), 152034#(<= (+ main_offset 404) main_length), 152035#(<= (+ main_offset 400) main_length), 152032#(<= (+ main_offset 412) main_length), 152033#(<= (+ main_offset 408) main_length), 152038#(<= (+ main_offset 388) main_length), 152039#(<= (+ main_offset 384) main_length), 152036#(<= (+ main_offset 396) main_length), 152037#(<= (+ main_offset 392) main_length), 152042#(<= (+ main_offset 372) main_length), 152043#(<= (+ main_offset 368) main_length), 152040#(<= (+ main_offset 380) main_length), 152041#(<= (+ main_offset 376) main_length), 152046#(<= (+ main_offset 356) main_length), 152047#(<= (+ main_offset 352) main_length), 152044#(<= (+ main_offset 364) main_length), 152045#(<= (+ main_offset 360) main_length), 152050#(<= (+ main_offset 340) main_length), 152051#(<= (+ main_offset 336) main_length), 152048#(<= (+ main_offset 348) main_length), 152049#(<= (+ main_offset 344) main_length), 152054#(<= (+ main_offset 324) main_length), 152052#(<= (+ main_offset 332) main_length), 152053#(<= (+ main_offset 328) main_length)] [2018-07-23 13:53:53,741 INFO L134 CoverageAnalysis]: Checked inductivity of 32942 backedges. 0 proven. 32942 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:53,741 INFO L450 AbstractCegarLoop]: Interpolant automaton has 184 states [2018-07-23 13:53:53,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2018-07-23 13:53:53,744 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:53:53,744 INFO L87 Difference]: Start difference. First operand 366 states and 366 transitions. Second operand 184 states. [2018-07-23 13:53:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:55,087 INFO L93 Difference]: Finished difference Result 369 states and 369 transitions. [2018-07-23 13:53:55,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2018-07-23 13:53:55,087 INFO L78 Accepts]: Start accepts. Automaton has 184 states. Word has length 365 [2018-07-23 13:53:55,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:55,088 INFO L225 Difference]: With dead ends: 369 [2018-07-23 13:53:55,088 INFO L226 Difference]: Without dead ends: 368 [2018-07-23 13:53:55,089 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2018-07-23 13:53:55,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-07-23 13:53:55,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2018-07-23 13:53:55,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2018-07-23 13:53:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 368 transitions. [2018-07-23 13:53:55,094 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 368 transitions. Word has length 365 [2018-07-23 13:53:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:55,094 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 368 transitions. [2018-07-23 13:53:55,094 INFO L472 AbstractCegarLoop]: Interpolant automaton has 184 states. [2018-07-23 13:53:55,094 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 368 transitions. [2018-07-23 13:53:55,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2018-07-23 13:53:55,095 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:55,095 INFO L357 BasicCegarLoop]: trace histogram [183, 182, 1, 1] [2018-07-23 13:53:55,095 INFO L414 AbstractCegarLoop]: === Iteration 183 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:55,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1574848588, now seen corresponding path program 182 times [2018-07-23 13:53:55,095 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 33306 backedges. 0 proven. 33306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,359 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:56,359 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [183] total 183 [2018-07-23 13:53:56,359 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:56,359 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 13:53:56,360 INFO L185 omatonBuilderFactory]: Interpolants [153602#(<= (+ main_offset 764) main_length), 153603#(<= (+ main_offset 760) main_length), 153600#(<= (+ main_offset 772) main_length), 153601#(<= (+ main_offset 768) main_length), 153606#(<= (+ main_offset 748) main_length), 153607#(<= (+ main_offset 744) main_length), 153604#(<= (+ main_offset 756) main_length), 153605#(<= (+ main_offset 752) main_length), 153610#(<= (+ main_offset 732) main_length), 153611#(<= (+ main_offset 728) main_length), 153608#(<= (+ main_offset 740) main_length), 153609#(<= (+ main_offset 736) main_length), 153614#(<= (+ main_offset 716) main_length), 153615#(<= (+ main_offset 712) main_length), 153612#(<= (+ main_offset 724) main_length), 153613#(<= (+ main_offset 720) main_length), 153618#(<= (+ main_offset 700) main_length), 153619#(<= (+ main_offset 696) main_length), 153616#(<= (+ main_offset 708) main_length), 153617#(<= (+ main_offset 704) main_length), 153622#(<= (+ main_offset 684) main_length), 153623#(<= (+ main_offset 680) main_length), 153620#(<= (+ main_offset 692) main_length), 153621#(<= (+ main_offset 688) main_length), 153626#(<= (+ main_offset 668) main_length), 153627#(<= (+ main_offset 664) main_length), 153624#(<= (+ main_offset 676) main_length), 153625#(<= (+ main_offset 672) main_length), 153630#(<= (+ main_offset 652) main_length), 153631#(<= (+ main_offset 648) main_length), 153628#(<= (+ main_offset 660) main_length), 153629#(<= (+ main_offset 656) main_length), 153634#(<= (+ main_offset 636) main_length), 153635#(<= (+ main_offset 632) main_length), 153632#(<= (+ main_offset 644) main_length), 153633#(<= (+ main_offset 640) main_length), 153638#(<= (+ main_offset 620) main_length), 153639#(<= (+ main_offset 616) main_length), 153636#(<= (+ main_offset 628) main_length), 153637#(<= (+ main_offset 624) main_length), 153642#(<= (+ main_offset 604) main_length), 153643#(<= (+ main_offset 600) main_length), 153640#(<= (+ main_offset 612) main_length), 153641#(<= (+ main_offset 608) main_length), 153646#(<= (+ main_offset 588) main_length), 153647#(<= (+ main_offset 584) main_length), 153644#(<= (+ main_offset 596) main_length), 153645#(<= (+ main_offset 592) main_length), 153650#(<= (+ main_offset 572) main_length), 153651#(<= (+ main_offset 568) main_length), 153648#(<= (+ main_offset 580) main_length), 153649#(<= (+ main_offset 576) main_length), 153654#(<= (+ main_offset 556) main_length), 153655#(<= (+ main_offset 552) main_length), 153652#(<= (+ main_offset 564) main_length), 153653#(<= (+ main_offset 560) main_length), 153658#(<= (+ main_offset 540) main_length), 153659#(<= (+ main_offset 536) main_length), 153656#(<= (+ main_offset 548) main_length), 153657#(<= (+ main_offset 544) main_length), 153662#(<= (+ main_offset 524) main_length), 153663#(<= (+ main_offset 520) main_length), 153660#(<= (+ main_offset 532) main_length), 153661#(<= (+ main_offset 528) main_length), 153666#(<= (+ main_offset 508) main_length), 153667#(<= (+ main_offset 504) main_length), 153664#(<= (+ main_offset 516) main_length), 153665#(<= (+ main_offset 512) main_length), 153670#(<= (+ main_offset 492) main_length), 153671#(<= (+ main_offset 488) main_length), 153668#(<= (+ main_offset 500) main_length), 153669#(<= (+ main_offset 496) main_length), 153674#(<= (+ main_offset 476) main_length), 153675#(<= (+ main_offset 472) main_length), 153672#(<= (+ main_offset 484) main_length), 153673#(<= (+ main_offset 480) main_length), 153678#(<= (+ main_offset 460) main_length), 153679#(<= (+ main_offset 456) main_length), 153676#(<= (+ main_offset 468) main_length), 153677#(<= (+ main_offset 464) main_length), 153682#(<= (+ main_offset 444) main_length), 153683#(<= (+ main_offset 440) main_length), 153680#(<= (+ main_offset 452) main_length), 153681#(<= (+ main_offset 448) main_length), 153686#(<= (+ main_offset 428) main_length), 153687#(<= (+ main_offset 424) main_length), 153684#(<= (+ main_offset 436) main_length), 153685#(<= (+ main_offset 432) main_length), 153690#(<= (+ main_offset 412) main_length), 153691#(<= (+ main_offset 408) main_length), 153688#(<= (+ main_offset 420) main_length), 153689#(<= (+ main_offset 416) main_length), 153694#(<= (+ main_offset 396) main_length), 153695#(<= (+ main_offset 392) main_length), 153692#(<= (+ main_offset 404) main_length), 153693#(<= (+ main_offset 400) main_length), 153698#(<= (+ main_offset 380) main_length), 153699#(<= (+ main_offset 376) main_length), 153696#(<= (+ main_offset 388) main_length), 153697#(<= (+ main_offset 384) main_length), 153702#(<= (+ main_offset 364) main_length), 153703#(<= (+ main_offset 360) main_length), 153700#(<= (+ main_offset 372) main_length), 153701#(<= (+ main_offset 368) main_length), 153706#(<= (+ main_offset 348) main_length), 153707#(<= (+ main_offset 344) main_length), 153704#(<= (+ main_offset 356) main_length), 153705#(<= (+ main_offset 352) main_length), 153710#(<= (+ main_offset 332) main_length), 153711#(<= (+ main_offset 328) main_length), 153708#(<= (+ main_offset 340) main_length), 153709#(<= (+ main_offset 336) main_length), 153712#(<= (+ main_offset 324) main_length), 153713#(<= (+ main_offset 320) main_length), 153530#false, 153531#(<= (+ main_offset 1048) main_length), 153529#true, 153534#(<= (+ main_offset 1036) main_length), 153535#(<= (+ main_offset 1032) main_length), 153532#(<= (+ main_offset 1044) main_length), 153533#(<= (+ main_offset 1040) main_length), 153538#(<= (+ main_offset 1020) main_length), 153539#(<= (+ main_offset 1016) main_length), 153536#(<= (+ main_offset 1028) main_length), 153537#(<= (+ main_offset 1024) main_length), 153542#(<= (+ main_offset 1004) main_length), 153543#(<= (+ main_offset 1000) main_length), 153540#(<= (+ main_offset 1012) main_length), 153541#(<= (+ main_offset 1008) main_length), 153546#(<= (+ main_offset 988) main_length), 153547#(<= (+ main_offset 984) main_length), 153544#(<= (+ main_offset 996) main_length), 153545#(<= (+ main_offset 992) main_length), 153550#(<= (+ main_offset 972) main_length), 153551#(<= (+ main_offset 968) main_length), 153548#(<= (+ main_offset 980) main_length), 153549#(<= (+ main_offset 976) main_length), 153554#(<= (+ main_offset 956) main_length), 153555#(<= (+ main_offset 952) main_length), 153552#(<= (+ main_offset 964) main_length), 153553#(<= (+ main_offset 960) main_length), 153558#(<= (+ main_offset 940) main_length), 153559#(<= (+ main_offset 936) main_length), 153556#(<= (+ main_offset 948) main_length), 153557#(<= (+ main_offset 944) main_length), 153562#(<= (+ main_offset 924) main_length), 153563#(<= (+ main_offset 920) main_length), 153560#(<= (+ main_offset 932) main_length), 153561#(<= (+ main_offset 928) main_length), 153566#(<= (+ main_offset 908) main_length), 153567#(<= (+ main_offset 904) main_length), 153564#(<= (+ main_offset 916) main_length), 153565#(<= (+ main_offset 912) main_length), 153570#(<= (+ main_offset 892) main_length), 153571#(<= (+ main_offset 888) main_length), 153568#(<= (+ main_offset 900) main_length), 153569#(<= (+ main_offset 896) main_length), 153574#(<= (+ main_offset 876) main_length), 153575#(<= (+ main_offset 872) main_length), 153572#(<= (+ main_offset 884) main_length), 153573#(<= (+ main_offset 880) main_length), 153578#(<= (+ main_offset 860) main_length), 153579#(<= (+ main_offset 856) main_length), 153576#(<= (+ main_offset 868) main_length), 153577#(<= (+ main_offset 864) main_length), 153582#(<= (+ main_offset 844) main_length), 153583#(<= (+ main_offset 840) main_length), 153580#(<= (+ main_offset 852) main_length), 153581#(<= (+ main_offset 848) main_length), 153586#(<= (+ main_offset 828) main_length), 153587#(<= (+ main_offset 824) main_length), 153584#(<= (+ main_offset 836) main_length), 153585#(<= (+ main_offset 832) main_length), 153590#(<= (+ main_offset 812) main_length), 153591#(<= (+ main_offset 808) main_length), 153588#(<= (+ main_offset 820) main_length), 153589#(<= (+ main_offset 816) main_length), 153594#(<= (+ main_offset 796) main_length), 153595#(<= (+ main_offset 792) main_length), 153592#(<= (+ main_offset 804) main_length), 153593#(<= (+ main_offset 800) main_length), 153598#(<= (+ main_offset 780) main_length), 153599#(<= (+ main_offset 776) main_length), 153596#(<= (+ main_offset 788) main_length), 153597#(<= (+ main_offset 784) main_length)] [2018-07-23 13:53:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 33306 backedges. 0 proven. 33306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:56,361 INFO L450 AbstractCegarLoop]: Interpolant automaton has 185 states [2018-07-23 13:53:56,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2018-07-23 13:53:56,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:53:56,365 INFO L87 Difference]: Start difference. First operand 368 states and 368 transitions. Second operand 185 states. [2018-07-23 13:53:57,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:57,005 INFO L93 Difference]: Finished difference Result 371 states and 371 transitions. [2018-07-23 13:53:57,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2018-07-23 13:53:57,005 INFO L78 Accepts]: Start accepts. Automaton has 185 states. Word has length 367 [2018-07-23 13:53:57,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:57,006 INFO L225 Difference]: With dead ends: 371 [2018-07-23 13:53:57,006 INFO L226 Difference]: Without dead ends: 370 [2018-07-23 13:53:57,007 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17020, Invalid=17020, Unknown=0, NotChecked=0, Total=34040 [2018-07-23 13:53:57,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2018-07-23 13:53:57,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2018-07-23 13:53:57,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2018-07-23 13:53:57,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2018-07-23 13:53:57,014 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 367 [2018-07-23 13:53:57,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:57,014 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2018-07-23 13:53:57,014 INFO L472 AbstractCegarLoop]: Interpolant automaton has 185 states. [2018-07-23 13:53:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2018-07-23 13:53:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2018-07-23 13:53:57,016 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:57,016 INFO L357 BasicCegarLoop]: trace histogram [184, 183, 1, 1] [2018-07-23 13:53:57,016 INFO L414 AbstractCegarLoop]: === Iteration 184 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:57,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1601005966, now seen corresponding path program 183 times [2018-07-23 13:53:57,016 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:53:58,273 INFO L134 CoverageAnalysis]: Checked inductivity of 33672 backedges. 0 proven. 33672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,273 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:53:58,273 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [184] total 184 [2018-07-23 13:53:58,273 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:53:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,274 INFO L185 omatonBuilderFactory]: Interpolants [155198#(<= (+ main_offset 1048) main_length), 155199#(<= (+ main_offset 1044) main_length), 155196#true, 155197#false, 155202#(<= (+ main_offset 1032) main_length), 155203#(<= (+ main_offset 1028) main_length), 155200#(<= (+ main_offset 1040) main_length), 155201#(<= (+ main_offset 1036) main_length), 155206#(<= (+ main_offset 1016) main_length), 155207#(<= (+ main_offset 1012) main_length), 155204#(<= (+ main_offset 1024) main_length), 155205#(<= (+ main_offset 1020) main_length), 155210#(<= (+ main_offset 1000) main_length), 155211#(<= (+ main_offset 996) main_length), 155208#(<= (+ main_offset 1008) main_length), 155209#(<= (+ main_offset 1004) main_length), 155214#(<= (+ main_offset 984) main_length), 155215#(<= (+ main_offset 980) main_length), 155212#(<= (+ main_offset 992) main_length), 155213#(<= (+ main_offset 988) main_length), 155218#(<= (+ main_offset 968) main_length), 155219#(<= (+ main_offset 964) main_length), 155216#(<= (+ main_offset 976) main_length), 155217#(<= (+ main_offset 972) main_length), 155222#(<= (+ main_offset 952) main_length), 155223#(<= (+ main_offset 948) main_length), 155220#(<= (+ main_offset 960) main_length), 155221#(<= (+ main_offset 956) main_length), 155226#(<= (+ main_offset 936) main_length), 155227#(<= (+ main_offset 932) main_length), 155224#(<= (+ main_offset 944) main_length), 155225#(<= (+ main_offset 940) main_length), 155230#(<= (+ main_offset 920) main_length), 155231#(<= (+ main_offset 916) main_length), 155228#(<= (+ main_offset 928) main_length), 155229#(<= (+ main_offset 924) main_length), 155234#(<= (+ main_offset 904) main_length), 155235#(<= (+ main_offset 900) main_length), 155232#(<= (+ main_offset 912) main_length), 155233#(<= (+ main_offset 908) main_length), 155238#(<= (+ main_offset 888) main_length), 155239#(<= (+ main_offset 884) main_length), 155236#(<= (+ main_offset 896) main_length), 155237#(<= (+ main_offset 892) main_length), 155242#(<= (+ main_offset 872) main_length), 155243#(<= (+ main_offset 868) main_length), 155240#(<= (+ main_offset 880) main_length), 155241#(<= (+ main_offset 876) main_length), 155246#(<= (+ main_offset 856) main_length), 155247#(<= (+ main_offset 852) main_length), 155244#(<= (+ main_offset 864) main_length), 155245#(<= (+ main_offset 860) main_length), 155250#(<= (+ main_offset 840) main_length), 155251#(<= (+ main_offset 836) main_length), 155248#(<= (+ main_offset 848) main_length), 155249#(<= (+ main_offset 844) main_length), 155254#(<= (+ main_offset 824) main_length), 155255#(<= (+ main_offset 820) main_length), 155252#(<= (+ main_offset 832) main_length), 155253#(<= (+ main_offset 828) main_length), 155258#(<= (+ main_offset 808) main_length), 155259#(<= (+ main_offset 804) main_length), 155256#(<= (+ main_offset 816) main_length), 155257#(<= (+ main_offset 812) main_length), 155262#(<= (+ main_offset 792) main_length), 155263#(<= (+ main_offset 788) main_length), 155260#(<= (+ main_offset 800) main_length), 155261#(<= (+ main_offset 796) main_length), 155266#(<= (+ main_offset 776) main_length), 155267#(<= (+ main_offset 772) main_length), 155264#(<= (+ main_offset 784) main_length), 155265#(<= (+ main_offset 780) main_length), 155270#(<= (+ main_offset 760) main_length), 155271#(<= (+ main_offset 756) main_length), 155268#(<= (+ main_offset 768) main_length), 155269#(<= (+ main_offset 764) main_length), 155274#(<= (+ main_offset 744) main_length), 155275#(<= (+ main_offset 740) main_length), 155272#(<= (+ main_offset 752) main_length), 155273#(<= (+ main_offset 748) main_length), 155278#(<= (+ main_offset 728) main_length), 155279#(<= (+ main_offset 724) main_length), 155276#(<= (+ main_offset 736) main_length), 155277#(<= (+ main_offset 732) main_length), 155282#(<= (+ main_offset 712) main_length), 155283#(<= (+ main_offset 708) main_length), 155280#(<= (+ main_offset 720) main_length), 155281#(<= (+ main_offset 716) main_length), 155286#(<= (+ main_offset 696) main_length), 155287#(<= (+ main_offset 692) main_length), 155284#(<= (+ main_offset 704) main_length), 155285#(<= (+ main_offset 700) main_length), 155290#(<= (+ main_offset 680) main_length), 155291#(<= (+ main_offset 676) main_length), 155288#(<= (+ main_offset 688) main_length), 155289#(<= (+ main_offset 684) main_length), 155294#(<= (+ main_offset 664) main_length), 155295#(<= (+ main_offset 660) main_length), 155292#(<= (+ main_offset 672) main_length), 155293#(<= (+ main_offset 668) main_length), 155298#(<= (+ main_offset 648) main_length), 155299#(<= (+ main_offset 644) main_length), 155296#(<= (+ main_offset 656) main_length), 155297#(<= (+ main_offset 652) main_length), 155302#(<= (+ main_offset 632) main_length), 155303#(<= (+ main_offset 628) main_length), 155300#(<= (+ main_offset 640) main_length), 155301#(<= (+ main_offset 636) main_length), 155306#(<= (+ main_offset 616) main_length), 155307#(<= (+ main_offset 612) main_length), 155304#(<= (+ main_offset 624) main_length), 155305#(<= (+ main_offset 620) main_length), 155310#(<= (+ main_offset 600) main_length), 155311#(<= (+ main_offset 596) main_length), 155308#(<= (+ main_offset 608) main_length), 155309#(<= (+ main_offset 604) main_length), 155314#(<= (+ main_offset 584) main_length), 155315#(<= (+ main_offset 580) main_length), 155312#(<= (+ main_offset 592) main_length), 155313#(<= (+ main_offset 588) main_length), 155318#(<= (+ main_offset 568) main_length), 155319#(<= (+ main_offset 564) main_length), 155316#(<= (+ main_offset 576) main_length), 155317#(<= (+ main_offset 572) main_length), 155322#(<= (+ main_offset 552) main_length), 155323#(<= (+ main_offset 548) main_length), 155320#(<= (+ main_offset 560) main_length), 155321#(<= (+ main_offset 556) main_length), 155326#(<= (+ main_offset 536) main_length), 155327#(<= (+ main_offset 532) main_length), 155324#(<= (+ main_offset 544) main_length), 155325#(<= (+ main_offset 540) main_length), 155330#(<= (+ main_offset 520) main_length), 155331#(<= (+ main_offset 516) main_length), 155328#(<= (+ main_offset 528) main_length), 155329#(<= (+ main_offset 524) main_length), 155334#(<= (+ main_offset 504) main_length), 155335#(<= (+ main_offset 500) main_length), 155332#(<= (+ main_offset 512) main_length), 155333#(<= (+ main_offset 508) main_length), 155338#(<= (+ main_offset 488) main_length), 155339#(<= (+ main_offset 484) main_length), 155336#(<= (+ main_offset 496) main_length), 155337#(<= (+ main_offset 492) main_length), 155342#(<= (+ main_offset 472) main_length), 155343#(<= (+ main_offset 468) main_length), 155340#(<= (+ main_offset 480) main_length), 155341#(<= (+ main_offset 476) main_length), 155346#(<= (+ main_offset 456) main_length), 155347#(<= (+ main_offset 452) main_length), 155344#(<= (+ main_offset 464) main_length), 155345#(<= (+ main_offset 460) main_length), 155350#(<= (+ main_offset 440) main_length), 155351#(<= (+ main_offset 436) main_length), 155348#(<= (+ main_offset 448) main_length), 155349#(<= (+ main_offset 444) main_length), 155354#(<= (+ main_offset 424) main_length), 155355#(<= (+ main_offset 420) main_length), 155352#(<= (+ main_offset 432) main_length), 155353#(<= (+ main_offset 428) main_length), 155358#(<= (+ main_offset 408) main_length), 155359#(<= (+ main_offset 404) main_length), 155356#(<= (+ main_offset 416) main_length), 155357#(<= (+ main_offset 412) main_length), 155362#(<= (+ main_offset 392) main_length), 155363#(<= (+ main_offset 388) main_length), 155360#(<= (+ main_offset 400) main_length), 155361#(<= (+ main_offset 396) main_length), 155366#(<= (+ main_offset 376) main_length), 155367#(<= (+ main_offset 372) main_length), 155364#(<= (+ main_offset 384) main_length), 155365#(<= (+ main_offset 380) main_length), 155370#(<= (+ main_offset 360) main_length), 155371#(<= (+ main_offset 356) main_length), 155368#(<= (+ main_offset 368) main_length), 155369#(<= (+ main_offset 364) main_length), 155374#(<= (+ main_offset 344) main_length), 155375#(<= (+ main_offset 340) main_length), 155372#(<= (+ main_offset 352) main_length), 155373#(<= (+ main_offset 348) main_length), 155378#(<= (+ main_offset 328) main_length), 155379#(<= (+ main_offset 324) main_length), 155376#(<= (+ main_offset 336) main_length), 155377#(<= (+ main_offset 332) main_length), 155380#(<= (+ main_offset 320) main_length), 155381#(<= (+ main_offset 316) main_length)] [2018-07-23 13:53:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 33672 backedges. 0 proven. 33672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:53:58,276 INFO L450 AbstractCegarLoop]: Interpolant automaton has 186 states [2018-07-23 13:53:58,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 186 interpolants. [2018-07-23 13:53:58,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17205, Invalid=17205, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:53:58,279 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand 186 states. [2018-07-23 13:53:59,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:53:59,698 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2018-07-23 13:53:59,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2018-07-23 13:53:59,698 INFO L78 Accepts]: Start accepts. Automaton has 186 states. Word has length 369 [2018-07-23 13:53:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:53:59,699 INFO L225 Difference]: With dead ends: 373 [2018-07-23 13:53:59,699 INFO L226 Difference]: Without dead ends: 372 [2018-07-23 13:53:59,700 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17205, Invalid=17205, Unknown=0, NotChecked=0, Total=34410 [2018-07-23 13:53:59,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-07-23 13:53:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2018-07-23 13:53:59,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-07-23 13:53:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 372 transitions. [2018-07-23 13:53:59,705 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 372 transitions. Word has length 369 [2018-07-23 13:53:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:53:59,705 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 372 transitions. [2018-07-23 13:53:59,705 INFO L472 AbstractCegarLoop]: Interpolant automaton has 186 states. [2018-07-23 13:53:59,705 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 372 transitions. [2018-07-23 13:53:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-07-23 13:53:59,706 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:53:59,706 INFO L357 BasicCegarLoop]: trace histogram [185, 184, 1, 1] [2018-07-23 13:53:59,706 INFO L414 AbstractCegarLoop]: === Iteration 185 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:53:59,706 INFO L82 PathProgramCache]: Analyzing trace with hash 968442448, now seen corresponding path program 184 times [2018-07-23 13:53:59,706 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:53:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 34040 backedges. 0 proven. 34040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:01,000 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:01,000 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [185] total 185 [2018-07-23 13:54:01,000 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:01,000 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 13:54:01,001 INFO L185 omatonBuilderFactory]: Interpolants [156930#(<= (+ main_offset 824) main_length), 156931#(<= (+ main_offset 820) main_length), 156928#(<= (+ main_offset 832) main_length), 156929#(<= (+ main_offset 828) main_length), 156934#(<= (+ main_offset 808) main_length), 156935#(<= (+ main_offset 804) main_length), 156932#(<= (+ main_offset 816) main_length), 156933#(<= (+ main_offset 812) main_length), 156938#(<= (+ main_offset 792) main_length), 156939#(<= (+ main_offset 788) main_length), 156936#(<= (+ main_offset 800) main_length), 156937#(<= (+ main_offset 796) main_length), 156942#(<= (+ main_offset 776) main_length), 156943#(<= (+ main_offset 772) main_length), 156940#(<= (+ main_offset 784) main_length), 156941#(<= (+ main_offset 780) main_length), 156946#(<= (+ main_offset 760) main_length), 156947#(<= (+ main_offset 756) main_length), 156944#(<= (+ main_offset 768) main_length), 156945#(<= (+ main_offset 764) main_length), 156950#(<= (+ main_offset 744) main_length), 156951#(<= (+ main_offset 740) main_length), 156948#(<= (+ main_offset 752) main_length), 156949#(<= (+ main_offset 748) main_length), 156954#(<= (+ main_offset 728) main_length), 156955#(<= (+ main_offset 724) main_length), 156952#(<= (+ main_offset 736) main_length), 156953#(<= (+ main_offset 732) main_length), 156958#(<= (+ main_offset 712) main_length), 156959#(<= (+ main_offset 708) main_length), 156956#(<= (+ main_offset 720) main_length), 156957#(<= (+ main_offset 716) main_length), 156962#(<= (+ main_offset 696) main_length), 156963#(<= (+ main_offset 692) main_length), 156960#(<= (+ main_offset 704) main_length), 156961#(<= (+ main_offset 700) main_length), 156966#(<= (+ main_offset 680) main_length), 156967#(<= (+ main_offset 676) main_length), 156964#(<= (+ main_offset 688) main_length), 156965#(<= (+ main_offset 684) main_length), 156970#(<= (+ main_offset 664) main_length), 156971#(<= (+ main_offset 660) main_length), 156968#(<= (+ main_offset 672) main_length), 156969#(<= (+ main_offset 668) main_length), 156974#(<= (+ main_offset 648) main_length), 156975#(<= (+ main_offset 644) main_length), 156972#(<= (+ main_offset 656) main_length), 156973#(<= (+ main_offset 652) main_length), 156978#(<= (+ main_offset 632) main_length), 156979#(<= (+ main_offset 628) main_length), 156976#(<= (+ main_offset 640) main_length), 156977#(<= (+ main_offset 636) main_length), 156982#(<= (+ main_offset 616) main_length), 156983#(<= (+ main_offset 612) main_length), 156980#(<= (+ main_offset 624) main_length), 156981#(<= (+ main_offset 620) main_length), 156986#(<= (+ main_offset 600) main_length), 156987#(<= (+ main_offset 596) main_length), 156984#(<= (+ main_offset 608) main_length), 156985#(<= (+ main_offset 604) main_length), 156990#(<= (+ main_offset 584) main_length), 156991#(<= (+ main_offset 580) main_length), 156988#(<= (+ main_offset 592) main_length), 156989#(<= (+ main_offset 588) main_length), 156994#(<= (+ main_offset 568) main_length), 156995#(<= (+ main_offset 564) main_length), 156992#(<= (+ main_offset 576) main_length), 156993#(<= (+ main_offset 572) main_length), 156998#(<= (+ main_offset 552) main_length), 156999#(<= (+ main_offset 548) main_length), 156996#(<= (+ main_offset 560) main_length), 156997#(<= (+ main_offset 556) main_length), 157002#(<= (+ main_offset 536) main_length), 157003#(<= (+ main_offset 532) main_length), 157000#(<= (+ main_offset 544) main_length), 157001#(<= (+ main_offset 540) main_length), 157006#(<= (+ main_offset 520) main_length), 157007#(<= (+ main_offset 516) main_length), 157004#(<= (+ main_offset 528) main_length), 157005#(<= (+ main_offset 524) main_length), 157010#(<= (+ main_offset 504) main_length), 157011#(<= (+ main_offset 500) main_length), 157008#(<= (+ main_offset 512) main_length), 157009#(<= (+ main_offset 508) main_length), 157014#(<= (+ main_offset 488) main_length), 157015#(<= (+ main_offset 484) main_length), 157012#(<= (+ main_offset 496) main_length), 157013#(<= (+ main_offset 492) main_length), 157018#(<= (+ main_offset 472) main_length), 157019#(<= (+ main_offset 468) main_length), 157016#(<= (+ main_offset 480) main_length), 157017#(<= (+ main_offset 476) main_length), 157022#(<= (+ main_offset 456) main_length), 157023#(<= (+ main_offset 452) main_length), 157020#(<= (+ main_offset 464) main_length), 157021#(<= (+ main_offset 460) main_length), 157026#(<= (+ main_offset 440) main_length), 157027#(<= (+ main_offset 436) main_length), 157024#(<= (+ main_offset 448) main_length), 157025#(<= (+ main_offset 444) main_length), 157030#(<= (+ main_offset 424) main_length), 157031#(<= (+ main_offset 420) main_length), 157028#(<= (+ main_offset 432) main_length), 157029#(<= (+ main_offset 428) main_length), 157034#(<= (+ main_offset 408) main_length), 157035#(<= (+ main_offset 404) main_length), 157032#(<= (+ main_offset 416) main_length), 157033#(<= (+ main_offset 412) main_length), 157038#(<= (+ main_offset 392) main_length), 157039#(<= (+ main_offset 388) main_length), 157036#(<= (+ main_offset 400) main_length), 157037#(<= (+ main_offset 396) main_length), 157042#(<= (+ main_offset 376) main_length), 157043#(<= (+ main_offset 372) main_length), 157040#(<= (+ main_offset 384) main_length), 157041#(<= (+ main_offset 380) main_length), 157046#(<= (+ main_offset 360) main_length), 157047#(<= (+ main_offset 356) main_length), 157044#(<= (+ main_offset 368) main_length), 157045#(<= (+ main_offset 364) main_length), 157050#(<= (+ main_offset 344) main_length), 157051#(<= (+ main_offset 340) main_length), 157048#(<= (+ main_offset 352) main_length), 157049#(<= (+ main_offset 348) main_length), 157054#(<= (+ main_offset 328) main_length), 157055#(<= (+ main_offset 324) main_length), 157052#(<= (+ main_offset 336) main_length), 157053#(<= (+ main_offset 332) main_length), 157058#(<= (+ main_offset 312) main_length), 157056#(<= (+ main_offset 320) main_length), 157057#(<= (+ main_offset 316) main_length), 156874#(<= (+ main_offset 1048) main_length), 156875#(<= (+ main_offset 1044) main_length), 156872#true, 156873#false, 156878#(<= (+ main_offset 1032) main_length), 156879#(<= (+ main_offset 1028) main_length), 156876#(<= (+ main_offset 1040) main_length), 156877#(<= (+ main_offset 1036) main_length), 156882#(<= (+ main_offset 1016) main_length), 156883#(<= (+ main_offset 1012) main_length), 156880#(<= (+ main_offset 1024) main_length), 156881#(<= (+ main_offset 1020) main_length), 156886#(<= (+ main_offset 1000) main_length), 156887#(<= (+ main_offset 996) main_length), 156884#(<= (+ main_offset 1008) main_length), 156885#(<= (+ main_offset 1004) main_length), 156890#(<= (+ main_offset 984) main_length), 156891#(<= (+ main_offset 980) main_length), 156888#(<= (+ main_offset 992) main_length), 156889#(<= (+ main_offset 988) main_length), 156894#(<= (+ main_offset 968) main_length), 156895#(<= (+ main_offset 964) main_length), 156892#(<= (+ main_offset 976) main_length), 156893#(<= (+ main_offset 972) main_length), 156898#(<= (+ main_offset 952) main_length), 156899#(<= (+ main_offset 948) main_length), 156896#(<= (+ main_offset 960) main_length), 156897#(<= (+ main_offset 956) main_length), 156902#(<= (+ main_offset 936) main_length), 156903#(<= (+ main_offset 932) main_length), 156900#(<= (+ main_offset 944) main_length), 156901#(<= (+ main_offset 940) main_length), 156906#(<= (+ main_offset 920) main_length), 156907#(<= (+ main_offset 916) main_length), 156904#(<= (+ main_offset 928) main_length), 156905#(<= (+ main_offset 924) main_length), 156910#(<= (+ main_offset 904) main_length), 156911#(<= (+ main_offset 900) main_length), 156908#(<= (+ main_offset 912) main_length), 156909#(<= (+ main_offset 908) main_length), 156914#(<= (+ main_offset 888) main_length), 156915#(<= (+ main_offset 884) main_length), 156912#(<= (+ main_offset 896) main_length), 156913#(<= (+ main_offset 892) main_length), 156918#(<= (+ main_offset 872) main_length), 156919#(<= (+ main_offset 868) main_length), 156916#(<= (+ main_offset 880) main_length), 156917#(<= (+ main_offset 876) main_length), 156922#(<= (+ main_offset 856) main_length), 156923#(<= (+ main_offset 852) main_length), 156920#(<= (+ main_offset 864) main_length), 156921#(<= (+ main_offset 860) main_length), 156926#(<= (+ main_offset 840) main_length), 156927#(<= (+ main_offset 836) main_length), 156924#(<= (+ main_offset 848) main_length), 156925#(<= (+ main_offset 844) main_length)] [2018-07-23 13:54:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 34040 backedges. 0 proven. 34040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:01,003 INFO L450 AbstractCegarLoop]: Interpolant automaton has 187 states [2018-07-23 13:54:01,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 187 interpolants. [2018-07-23 13:54:01,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17391, Invalid=17391, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:54:01,008 INFO L87 Difference]: Start difference. First operand 372 states and 372 transitions. Second operand 187 states. [2018-07-23 13:54:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:01,892 INFO L93 Difference]: Finished difference Result 375 states and 375 transitions. [2018-07-23 13:54:01,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2018-07-23 13:54:01,892 INFO L78 Accepts]: Start accepts. Automaton has 187 states. Word has length 371 [2018-07-23 13:54:01,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:01,893 INFO L225 Difference]: With dead ends: 375 [2018-07-23 13:54:01,893 INFO L226 Difference]: Without dead ends: 374 [2018-07-23 13:54:01,894 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17391, Invalid=17391, Unknown=0, NotChecked=0, Total=34782 [2018-07-23 13:54:01,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-07-23 13:54:01,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2018-07-23 13:54:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-07-23 13:54:01,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 374 transitions. [2018-07-23 13:54:01,899 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 374 transitions. Word has length 371 [2018-07-23 13:54:01,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:01,899 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 374 transitions. [2018-07-23 13:54:01,899 INFO L472 AbstractCegarLoop]: Interpolant automaton has 187 states. [2018-07-23 13:54:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 374 transitions. [2018-07-23 13:54:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-07-23 13:54:01,900 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:01,900 INFO L357 BasicCegarLoop]: trace histogram [186, 185, 1, 1] [2018-07-23 13:54:01,900 INFO L414 AbstractCegarLoop]: === Iteration 186 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:01,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1334709614, now seen corresponding path program 185 times [2018-07-23 13:54:01,901 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:03,185 INFO L134 CoverageAnalysis]: Checked inductivity of 34410 backedges. 0 proven. 34410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:03,186 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:03,186 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [186] total 186 [2018-07-23 13:54:03,186 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:03,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:03,186 INFO L185 omatonBuilderFactory]: Interpolants [158722#(<= (+ main_offset 396) main_length), 158723#(<= (+ main_offset 392) main_length), 158720#(<= (+ main_offset 404) main_length), 158721#(<= (+ main_offset 400) main_length), 158726#(<= (+ main_offset 380) main_length), 158727#(<= (+ main_offset 376) main_length), 158724#(<= (+ main_offset 388) main_length), 158725#(<= (+ main_offset 384) main_length), 158730#(<= (+ main_offset 364) main_length), 158731#(<= (+ main_offset 360) main_length), 158728#(<= (+ main_offset 372) main_length), 158729#(<= (+ main_offset 368) main_length), 158734#(<= (+ main_offset 348) main_length), 158735#(<= (+ main_offset 344) main_length), 158732#(<= (+ main_offset 356) main_length), 158733#(<= (+ main_offset 352) main_length), 158738#(<= (+ main_offset 332) main_length), 158739#(<= (+ main_offset 328) main_length), 158736#(<= (+ main_offset 340) main_length), 158737#(<= (+ main_offset 336) main_length), 158742#(<= (+ main_offset 316) main_length), 158743#(<= (+ main_offset 312) main_length), 158740#(<= (+ main_offset 324) main_length), 158741#(<= (+ main_offset 320) main_length), 158744#(<= (+ main_offset 308) main_length), 158558#false, 158559#(<= (+ main_offset 1048) main_length), 158557#true, 158562#(<= (+ main_offset 1036) main_length), 158563#(<= (+ main_offset 1032) main_length), 158560#(<= (+ main_offset 1044) main_length), 158561#(<= (+ main_offset 1040) main_length), 158566#(<= (+ main_offset 1020) main_length), 158567#(<= (+ main_offset 1016) main_length), 158564#(<= (+ main_offset 1028) main_length), 158565#(<= (+ main_offset 1024) main_length), 158570#(<= (+ main_offset 1004) main_length), 158571#(<= (+ main_offset 1000) main_length), 158568#(<= (+ main_offset 1012) main_length), 158569#(<= (+ main_offset 1008) main_length), 158574#(<= (+ main_offset 988) main_length), 158575#(<= (+ main_offset 984) main_length), 158572#(<= (+ main_offset 996) main_length), 158573#(<= (+ main_offset 992) main_length), 158578#(<= (+ main_offset 972) main_length), 158579#(<= (+ main_offset 968) main_length), 158576#(<= (+ main_offset 980) main_length), 158577#(<= (+ main_offset 976) main_length), 158582#(<= (+ main_offset 956) main_length), 158583#(<= (+ main_offset 952) main_length), 158580#(<= (+ main_offset 964) main_length), 158581#(<= (+ main_offset 960) main_length), 158586#(<= (+ main_offset 940) main_length), 158587#(<= (+ main_offset 936) main_length), 158584#(<= (+ main_offset 948) main_length), 158585#(<= (+ main_offset 944) main_length), 158590#(<= (+ main_offset 924) main_length), 158591#(<= (+ main_offset 920) main_length), 158588#(<= (+ main_offset 932) main_length), 158589#(<= (+ main_offset 928) main_length), 158594#(<= (+ main_offset 908) main_length), 158595#(<= (+ main_offset 904) main_length), 158592#(<= (+ main_offset 916) main_length), 158593#(<= (+ main_offset 912) main_length), 158598#(<= (+ main_offset 892) main_length), 158599#(<= (+ main_offset 888) main_length), 158596#(<= (+ main_offset 900) main_length), 158597#(<= (+ main_offset 896) main_length), 158602#(<= (+ main_offset 876) main_length), 158603#(<= (+ main_offset 872) main_length), 158600#(<= (+ main_offset 884) main_length), 158601#(<= (+ main_offset 880) main_length), 158606#(<= (+ main_offset 860) main_length), 158607#(<= (+ main_offset 856) main_length), 158604#(<= (+ main_offset 868) main_length), 158605#(<= (+ main_offset 864) main_length), 158610#(<= (+ main_offset 844) main_length), 158611#(<= (+ main_offset 840) main_length), 158608#(<= (+ main_offset 852) main_length), 158609#(<= (+ main_offset 848) main_length), 158614#(<= (+ main_offset 828) main_length), 158615#(<= (+ main_offset 824) main_length), 158612#(<= (+ main_offset 836) main_length), 158613#(<= (+ main_offset 832) main_length), 158618#(<= (+ main_offset 812) main_length), 158619#(<= (+ main_offset 808) main_length), 158616#(<= (+ main_offset 820) main_length), 158617#(<= (+ main_offset 816) main_length), 158622#(<= (+ main_offset 796) main_length), 158623#(<= (+ main_offset 792) main_length), 158620#(<= (+ main_offset 804) main_length), 158621#(<= (+ main_offset 800) main_length), 158626#(<= (+ main_offset 780) main_length), 158627#(<= (+ main_offset 776) main_length), 158624#(<= (+ main_offset 788) main_length), 158625#(<= (+ main_offset 784) main_length), 158630#(<= (+ main_offset 764) main_length), 158631#(<= (+ main_offset 760) main_length), 158628#(<= (+ main_offset 772) main_length), 158629#(<= (+ main_offset 768) main_length), 158634#(<= (+ main_offset 748) main_length), 158635#(<= (+ main_offset 744) main_length), 158632#(<= (+ main_offset 756) main_length), 158633#(<= (+ main_offset 752) main_length), 158638#(<= (+ main_offset 732) main_length), 158639#(<= (+ main_offset 728) main_length), 158636#(<= (+ main_offset 740) main_length), 158637#(<= (+ main_offset 736) main_length), 158642#(<= (+ main_offset 716) main_length), 158643#(<= (+ main_offset 712) main_length), 158640#(<= (+ main_offset 724) main_length), 158641#(<= (+ main_offset 720) main_length), 158646#(<= (+ main_offset 700) main_length), 158647#(<= (+ main_offset 696) main_length), 158644#(<= (+ main_offset 708) main_length), 158645#(<= (+ main_offset 704) main_length), 158650#(<= (+ main_offset 684) main_length), 158651#(<= (+ main_offset 680) main_length), 158648#(<= (+ main_offset 692) main_length), 158649#(<= (+ main_offset 688) main_length), 158654#(<= (+ main_offset 668) main_length), 158655#(<= (+ main_offset 664) main_length), 158652#(<= (+ main_offset 676) main_length), 158653#(<= (+ main_offset 672) main_length), 158658#(<= (+ main_offset 652) main_length), 158659#(<= (+ main_offset 648) main_length), 158656#(<= (+ main_offset 660) main_length), 158657#(<= (+ main_offset 656) main_length), 158662#(<= (+ main_offset 636) main_length), 158663#(<= (+ main_offset 632) main_length), 158660#(<= (+ main_offset 644) main_length), 158661#(<= (+ main_offset 640) main_length), 158666#(<= (+ main_offset 620) main_length), 158667#(<= (+ main_offset 616) main_length), 158664#(<= (+ main_offset 628) main_length), 158665#(<= (+ main_offset 624) main_length), 158670#(<= (+ main_offset 604) main_length), 158671#(<= (+ main_offset 600) main_length), 158668#(<= (+ main_offset 612) main_length), 158669#(<= (+ main_offset 608) main_length), 158674#(<= (+ main_offset 588) main_length), 158675#(<= (+ main_offset 584) main_length), 158672#(<= (+ main_offset 596) main_length), 158673#(<= (+ main_offset 592) main_length), 158678#(<= (+ main_offset 572) main_length), 158679#(<= (+ main_offset 568) main_length), 158676#(<= (+ main_offset 580) main_length), 158677#(<= (+ main_offset 576) main_length), 158682#(<= (+ main_offset 556) main_length), 158683#(<= (+ main_offset 552) main_length), 158680#(<= (+ main_offset 564) main_length), 158681#(<= (+ main_offset 560) main_length), 158686#(<= (+ main_offset 540) main_length), 158687#(<= (+ main_offset 536) main_length), 158684#(<= (+ main_offset 548) main_length), 158685#(<= (+ main_offset 544) main_length), 158690#(<= (+ main_offset 524) main_length), 158691#(<= (+ main_offset 520) main_length), 158688#(<= (+ main_offset 532) main_length), 158689#(<= (+ main_offset 528) main_length), 158694#(<= (+ main_offset 508) main_length), 158695#(<= (+ main_offset 504) main_length), 158692#(<= (+ main_offset 516) main_length), 158693#(<= (+ main_offset 512) main_length), 158698#(<= (+ main_offset 492) main_length), 158699#(<= (+ main_offset 488) main_length), 158696#(<= (+ main_offset 500) main_length), 158697#(<= (+ main_offset 496) main_length), 158702#(<= (+ main_offset 476) main_length), 158703#(<= (+ main_offset 472) main_length), 158700#(<= (+ main_offset 484) main_length), 158701#(<= (+ main_offset 480) main_length), 158706#(<= (+ main_offset 460) main_length), 158707#(<= (+ main_offset 456) main_length), 158704#(<= (+ main_offset 468) main_length), 158705#(<= (+ main_offset 464) main_length), 158710#(<= (+ main_offset 444) main_length), 158711#(<= (+ main_offset 440) main_length), 158708#(<= (+ main_offset 452) main_length), 158709#(<= (+ main_offset 448) main_length), 158714#(<= (+ main_offset 428) main_length), 158715#(<= (+ main_offset 424) main_length), 158712#(<= (+ main_offset 436) main_length), 158713#(<= (+ main_offset 432) main_length), 158718#(<= (+ main_offset 412) main_length), 158719#(<= (+ main_offset 408) main_length), 158716#(<= (+ main_offset 420) main_length), 158717#(<= (+ main_offset 416) main_length)] [2018-07-23 13:54:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34410 backedges. 0 proven. 34410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:03,189 INFO L450 AbstractCegarLoop]: Interpolant automaton has 188 states [2018-07-23 13:54:03,192 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2018-07-23 13:54:03,194 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17578, Invalid=17578, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:54:03,194 INFO L87 Difference]: Start difference. First operand 374 states and 374 transitions. Second operand 188 states. [2018-07-23 13:54:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:04,179 INFO L93 Difference]: Finished difference Result 377 states and 377 transitions. [2018-07-23 13:54:04,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2018-07-23 13:54:04,179 INFO L78 Accepts]: Start accepts. Automaton has 188 states. Word has length 373 [2018-07-23 13:54:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:04,180 INFO L225 Difference]: With dead ends: 377 [2018-07-23 13:54:04,180 INFO L226 Difference]: Without dead ends: 376 [2018-07-23 13:54:04,182 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17578, Invalid=17578, Unknown=0, NotChecked=0, Total=35156 [2018-07-23 13:54:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-07-23 13:54:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2018-07-23 13:54:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2018-07-23 13:54:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2018-07-23 13:54:04,186 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 373 [2018-07-23 13:54:04,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:04,186 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2018-07-23 13:54:04,187 INFO L472 AbstractCegarLoop]: Interpolant automaton has 188 states. [2018-07-23 13:54:04,187 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2018-07-23 13:54:04,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-07-23 13:54:04,188 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:04,188 INFO L357 BasicCegarLoop]: trace histogram [187, 186, 1, 1] [2018-07-23 13:54:04,188 INFO L414 AbstractCegarLoop]: === Iteration 187 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:04,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1539283540, now seen corresponding path program 186 times [2018-07-23 13:54:04,188 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 34782 backedges. 0 proven. 34782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:05,549 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:05,549 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [187] total 187 [2018-07-23 13:54:05,549 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:05,550 INFO L185 omatonBuilderFactory]: Interpolants [160258#(<= (+ main_offset 1028) main_length), 160259#(<= (+ main_offset 1024) main_length), 160256#(<= (+ main_offset 1036) main_length), 160257#(<= (+ main_offset 1032) main_length), 160262#(<= (+ main_offset 1012) main_length), 160263#(<= (+ main_offset 1008) main_length), 160260#(<= (+ main_offset 1020) main_length), 160261#(<= (+ main_offset 1016) main_length), 160266#(<= (+ main_offset 996) main_length), 160267#(<= (+ main_offset 992) main_length), 160264#(<= (+ main_offset 1004) main_length), 160265#(<= (+ main_offset 1000) main_length), 160270#(<= (+ main_offset 980) main_length), 160271#(<= (+ main_offset 976) main_length), 160268#(<= (+ main_offset 988) main_length), 160269#(<= (+ main_offset 984) main_length), 160274#(<= (+ main_offset 964) main_length), 160275#(<= (+ main_offset 960) main_length), 160272#(<= (+ main_offset 972) main_length), 160273#(<= (+ main_offset 968) main_length), 160278#(<= (+ main_offset 948) main_length), 160279#(<= (+ main_offset 944) main_length), 160276#(<= (+ main_offset 956) main_length), 160277#(<= (+ main_offset 952) main_length), 160282#(<= (+ main_offset 932) main_length), 160283#(<= (+ main_offset 928) main_length), 160280#(<= (+ main_offset 940) main_length), 160281#(<= (+ main_offset 936) main_length), 160286#(<= (+ main_offset 916) main_length), 160287#(<= (+ main_offset 912) main_length), 160284#(<= (+ main_offset 924) main_length), 160285#(<= (+ main_offset 920) main_length), 160290#(<= (+ main_offset 900) main_length), 160291#(<= (+ main_offset 896) main_length), 160288#(<= (+ main_offset 908) main_length), 160289#(<= (+ main_offset 904) main_length), 160294#(<= (+ main_offset 884) main_length), 160295#(<= (+ main_offset 880) main_length), 160292#(<= (+ main_offset 892) main_length), 160293#(<= (+ main_offset 888) main_length), 160298#(<= (+ main_offset 868) main_length), 160299#(<= (+ main_offset 864) main_length), 160296#(<= (+ main_offset 876) main_length), 160297#(<= (+ main_offset 872) main_length), 160302#(<= (+ main_offset 852) main_length), 160303#(<= (+ main_offset 848) main_length), 160300#(<= (+ main_offset 860) main_length), 160301#(<= (+ main_offset 856) main_length), 160306#(<= (+ main_offset 836) main_length), 160307#(<= (+ main_offset 832) main_length), 160304#(<= (+ main_offset 844) main_length), 160305#(<= (+ main_offset 840) main_length), 160310#(<= (+ main_offset 820) main_length), 160311#(<= (+ main_offset 816) main_length), 160308#(<= (+ main_offset 828) main_length), 160309#(<= (+ main_offset 824) main_length), 160314#(<= (+ main_offset 804) main_length), 160315#(<= (+ main_offset 800) main_length), 160312#(<= (+ main_offset 812) main_length), 160313#(<= (+ main_offset 808) main_length), 160318#(<= (+ main_offset 788) main_length), 160319#(<= (+ main_offset 784) main_length), 160316#(<= (+ main_offset 796) main_length), 160317#(<= (+ main_offset 792) main_length), 160322#(<= (+ main_offset 772) main_length), 160323#(<= (+ main_offset 768) main_length), 160320#(<= (+ main_offset 780) main_length), 160321#(<= (+ main_offset 776) main_length), 160326#(<= (+ main_offset 756) main_length), 160327#(<= (+ main_offset 752) main_length), 160324#(<= (+ main_offset 764) main_length), 160325#(<= (+ main_offset 760) main_length), 160330#(<= (+ main_offset 740) main_length), 160331#(<= (+ main_offset 736) main_length), 160328#(<= (+ main_offset 748) main_length), 160329#(<= (+ main_offset 744) main_length), 160334#(<= (+ main_offset 724) main_length), 160335#(<= (+ main_offset 720) main_length), 160332#(<= (+ main_offset 732) main_length), 160333#(<= (+ main_offset 728) main_length), 160338#(<= (+ main_offset 708) main_length), 160339#(<= (+ main_offset 704) main_length), 160336#(<= (+ main_offset 716) main_length), 160337#(<= (+ main_offset 712) main_length), 160342#(<= (+ main_offset 692) main_length), 160343#(<= (+ main_offset 688) main_length), 160340#(<= (+ main_offset 700) main_length), 160341#(<= (+ main_offset 696) main_length), 160346#(<= (+ main_offset 676) main_length), 160347#(<= (+ main_offset 672) main_length), 160344#(<= (+ main_offset 684) main_length), 160345#(<= (+ main_offset 680) main_length), 160350#(<= (+ main_offset 660) main_length), 160351#(<= (+ main_offset 656) main_length), 160348#(<= (+ main_offset 668) main_length), 160349#(<= (+ main_offset 664) main_length), 160354#(<= (+ main_offset 644) main_length), 160355#(<= (+ main_offset 640) main_length), 160352#(<= (+ main_offset 652) main_length), 160353#(<= (+ main_offset 648) main_length), 160358#(<= (+ main_offset 628) main_length), 160359#(<= (+ main_offset 624) main_length), 160356#(<= (+ main_offset 636) main_length), 160357#(<= (+ main_offset 632) main_length), 160362#(<= (+ main_offset 612) main_length), 160363#(<= (+ main_offset 608) main_length), 160360#(<= (+ main_offset 620) main_length), 160361#(<= (+ main_offset 616) main_length), 160366#(<= (+ main_offset 596) main_length), 160367#(<= (+ main_offset 592) main_length), 160364#(<= (+ main_offset 604) main_length), 160365#(<= (+ main_offset 600) main_length), 160370#(<= (+ main_offset 580) main_length), 160371#(<= (+ main_offset 576) main_length), 160368#(<= (+ main_offset 588) main_length), 160369#(<= (+ main_offset 584) main_length), 160374#(<= (+ main_offset 564) main_length), 160375#(<= (+ main_offset 560) main_length), 160372#(<= (+ main_offset 572) main_length), 160373#(<= (+ main_offset 568) main_length), 160378#(<= (+ main_offset 548) main_length), 160379#(<= (+ main_offset 544) main_length), 160376#(<= (+ main_offset 556) main_length), 160377#(<= (+ main_offset 552) main_length), 160382#(<= (+ main_offset 532) main_length), 160383#(<= (+ main_offset 528) main_length), 160380#(<= (+ main_offset 540) main_length), 160381#(<= (+ main_offset 536) main_length), 160386#(<= (+ main_offset 516) main_length), 160387#(<= (+ main_offset 512) main_length), 160384#(<= (+ main_offset 524) main_length), 160385#(<= (+ main_offset 520) main_length), 160390#(<= (+ main_offset 500) main_length), 160391#(<= (+ main_offset 496) main_length), 160388#(<= (+ main_offset 508) main_length), 160389#(<= (+ main_offset 504) main_length), 160394#(<= (+ main_offset 484) main_length), 160395#(<= (+ main_offset 480) main_length), 160392#(<= (+ main_offset 492) main_length), 160393#(<= (+ main_offset 488) main_length), 160398#(<= (+ main_offset 468) main_length), 160399#(<= (+ main_offset 464) main_length), 160396#(<= (+ main_offset 476) main_length), 160397#(<= (+ main_offset 472) main_length), 160402#(<= (+ main_offset 452) main_length), 160403#(<= (+ main_offset 448) main_length), 160400#(<= (+ main_offset 460) main_length), 160401#(<= (+ main_offset 456) main_length), 160406#(<= (+ main_offset 436) main_length), 160407#(<= (+ main_offset 432) main_length), 160404#(<= (+ main_offset 444) main_length), 160405#(<= (+ main_offset 440) main_length), 160410#(<= (+ main_offset 420) main_length), 160411#(<= (+ main_offset 416) main_length), 160408#(<= (+ main_offset 428) main_length), 160409#(<= (+ main_offset 424) main_length), 160414#(<= (+ main_offset 404) main_length), 160415#(<= (+ main_offset 400) main_length), 160412#(<= (+ main_offset 412) main_length), 160413#(<= (+ main_offset 408) main_length), 160418#(<= (+ main_offset 388) main_length), 160419#(<= (+ main_offset 384) main_length), 160416#(<= (+ main_offset 396) main_length), 160417#(<= (+ main_offset 392) main_length), 160422#(<= (+ main_offset 372) main_length), 160423#(<= (+ main_offset 368) main_length), 160420#(<= (+ main_offset 380) main_length), 160421#(<= (+ main_offset 376) main_length), 160426#(<= (+ main_offset 356) main_length), 160427#(<= (+ main_offset 352) main_length), 160424#(<= (+ main_offset 364) main_length), 160425#(<= (+ main_offset 360) main_length), 160430#(<= (+ main_offset 340) main_length), 160431#(<= (+ main_offset 336) main_length), 160428#(<= (+ main_offset 348) main_length), 160429#(<= (+ main_offset 344) main_length), 160434#(<= (+ main_offset 324) main_length), 160435#(<= (+ main_offset 320) main_length), 160432#(<= (+ main_offset 332) main_length), 160433#(<= (+ main_offset 328) main_length), 160438#(<= (+ main_offset 308) main_length), 160439#(<= (+ main_offset 304) main_length), 160436#(<= (+ main_offset 316) main_length), 160437#(<= (+ main_offset 312) main_length), 160251#true, 160254#(<= (+ main_offset 1044) main_length), 160255#(<= (+ main_offset 1040) main_length), 160252#false, 160253#(<= (+ main_offset 1048) main_length)] [2018-07-23 13:54:05,551 INFO L134 CoverageAnalysis]: Checked inductivity of 34782 backedges. 0 proven. 34782 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:05,551 INFO L450 AbstractCegarLoop]: Interpolant automaton has 189 states [2018-07-23 13:54:05,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2018-07-23 13:54:05,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17766, Invalid=17766, Unknown=0, NotChecked=0, Total=35532 [2018-07-23 13:54:05,553 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand 189 states. [2018-07-23 13:54:07,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:07,126 INFO L93 Difference]: Finished difference Result 379 states and 379 transitions. [2018-07-23 13:54:07,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2018-07-23 13:54:07,127 INFO L78 Accepts]: Start accepts. Automaton has 189 states. Word has length 375 [2018-07-23 13:54:07,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:07,127 INFO L225 Difference]: With dead ends: 379 [2018-07-23 13:54:07,127 INFO L226 Difference]: Without dead ends: 378 [2018-07-23 13:54:07,128 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17766, Invalid=17766, Unknown=0, NotChecked=0, Total=35532 [2018-07-23 13:54:07,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2018-07-23 13:54:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2018-07-23 13:54:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-07-23 13:54:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 378 transitions. [2018-07-23 13:54:07,132 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 378 transitions. Word has length 375 [2018-07-23 13:54:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:07,132 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 378 transitions. [2018-07-23 13:54:07,133 INFO L472 AbstractCegarLoop]: Interpolant automaton has 189 states. [2018-07-23 13:54:07,133 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 378 transitions. [2018-07-23 13:54:07,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2018-07-23 13:54:07,134 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:07,134 INFO L357 BasicCegarLoop]: trace histogram [188, 187, 1, 1] [2018-07-23 13:54:07,134 INFO L414 AbstractCegarLoop]: === Iteration 188 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:07,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1782733206, now seen corresponding path program 187 times [2018-07-23 13:54:07,134 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 35156 backedges. 0 proven. 35156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:08,562 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:08,562 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [188] total 188 [2018-07-23 13:54:08,563 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:08,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:08,563 INFO L185 omatonBuilderFactory]: Interpolants [162050#(<= (+ main_offset 672) main_length), 162051#(<= (+ main_offset 668) main_length), 162048#(<= (+ main_offset 680) main_length), 162049#(<= (+ main_offset 676) main_length), 162054#(<= (+ main_offset 656) main_length), 162055#(<= (+ main_offset 652) main_length), 162052#(<= (+ main_offset 664) main_length), 162053#(<= (+ main_offset 660) main_length), 162058#(<= (+ main_offset 640) main_length), 162059#(<= (+ main_offset 636) main_length), 162056#(<= (+ main_offset 648) main_length), 162057#(<= (+ main_offset 644) main_length), 162062#(<= (+ main_offset 624) main_length), 162063#(<= (+ main_offset 620) main_length), 162060#(<= (+ main_offset 632) main_length), 162061#(<= (+ main_offset 628) main_length), 162066#(<= (+ main_offset 608) main_length), 162067#(<= (+ main_offset 604) main_length), 162064#(<= (+ main_offset 616) main_length), 162065#(<= (+ main_offset 612) main_length), 162070#(<= (+ main_offset 592) main_length), 162071#(<= (+ main_offset 588) main_length), 162068#(<= (+ main_offset 600) main_length), 162069#(<= (+ main_offset 596) main_length), 162074#(<= (+ main_offset 576) main_length), 162075#(<= (+ main_offset 572) main_length), 162072#(<= (+ main_offset 584) main_length), 162073#(<= (+ main_offset 580) main_length), 162078#(<= (+ main_offset 560) main_length), 162079#(<= (+ main_offset 556) main_length), 162076#(<= (+ main_offset 568) main_length), 162077#(<= (+ main_offset 564) main_length), 162082#(<= (+ main_offset 544) main_length), 162083#(<= (+ main_offset 540) main_length), 162080#(<= (+ main_offset 552) main_length), 162081#(<= (+ main_offset 548) main_length), 162086#(<= (+ main_offset 528) main_length), 162087#(<= (+ main_offset 524) main_length), 162084#(<= (+ main_offset 536) main_length), 162085#(<= (+ main_offset 532) main_length), 162090#(<= (+ main_offset 512) main_length), 162091#(<= (+ main_offset 508) main_length), 162088#(<= (+ main_offset 520) main_length), 162089#(<= (+ main_offset 516) main_length), 162094#(<= (+ main_offset 496) main_length), 162095#(<= (+ main_offset 492) main_length), 162092#(<= (+ main_offset 504) main_length), 162093#(<= (+ main_offset 500) main_length), 162098#(<= (+ main_offset 480) main_length), 162099#(<= (+ main_offset 476) main_length), 162096#(<= (+ main_offset 488) main_length), 162097#(<= (+ main_offset 484) main_length), 162102#(<= (+ main_offset 464) main_length), 162103#(<= (+ main_offset 460) main_length), 162100#(<= (+ main_offset 472) main_length), 162101#(<= (+ main_offset 468) main_length), 162106#(<= (+ main_offset 448) main_length), 162107#(<= (+ main_offset 444) main_length), 162104#(<= (+ main_offset 456) main_length), 162105#(<= (+ main_offset 452) main_length), 162110#(<= (+ main_offset 432) main_length), 162111#(<= (+ main_offset 428) main_length), 162108#(<= (+ main_offset 440) main_length), 162109#(<= (+ main_offset 436) main_length), 162114#(<= (+ main_offset 416) main_length), 162115#(<= (+ main_offset 412) main_length), 162112#(<= (+ main_offset 424) main_length), 162113#(<= (+ main_offset 420) main_length), 162118#(<= (+ main_offset 400) main_length), 162119#(<= (+ main_offset 396) main_length), 162116#(<= (+ main_offset 408) main_length), 162117#(<= (+ main_offset 404) main_length), 162122#(<= (+ main_offset 384) main_length), 162123#(<= (+ main_offset 380) main_length), 162120#(<= (+ main_offset 392) main_length), 162121#(<= (+ main_offset 388) main_length), 162126#(<= (+ main_offset 368) main_length), 162127#(<= (+ main_offset 364) main_length), 162124#(<= (+ main_offset 376) main_length), 162125#(<= (+ main_offset 372) main_length), 162130#(<= (+ main_offset 352) main_length), 162131#(<= (+ main_offset 348) main_length), 162128#(<= (+ main_offset 360) main_length), 162129#(<= (+ main_offset 356) main_length), 162134#(<= (+ main_offset 336) main_length), 162135#(<= (+ main_offset 332) main_length), 162132#(<= (+ main_offset 344) main_length), 162133#(<= (+ main_offset 340) main_length), 162138#(<= (+ main_offset 320) main_length), 162139#(<= (+ main_offset 316) main_length), 162136#(<= (+ main_offset 328) main_length), 162137#(<= (+ main_offset 324) main_length), 162142#(<= (+ main_offset 304) main_length), 162143#(<= (+ main_offset 300) main_length), 162140#(<= (+ main_offset 312) main_length), 162141#(<= (+ main_offset 308) main_length), 161954#true, 161955#false, 161958#(<= (+ main_offset 1040) main_length), 161959#(<= (+ main_offset 1036) main_length), 161956#(<= (+ main_offset 1048) main_length), 161957#(<= (+ main_offset 1044) main_length), 161962#(<= (+ main_offset 1024) main_length), 161963#(<= (+ main_offset 1020) main_length), 161960#(<= (+ main_offset 1032) main_length), 161961#(<= (+ main_offset 1028) main_length), 161966#(<= (+ main_offset 1008) main_length), 161967#(<= (+ main_offset 1004) main_length), 161964#(<= (+ main_offset 1016) main_length), 161965#(<= (+ main_offset 1012) main_length), 161970#(<= (+ main_offset 992) main_length), 161971#(<= (+ main_offset 988) main_length), 161968#(<= (+ main_offset 1000) main_length), 161969#(<= (+ main_offset 996) main_length), 161974#(<= (+ main_offset 976) main_length), 161975#(<= (+ main_offset 972) main_length), 161972#(<= (+ main_offset 984) main_length), 161973#(<= (+ main_offset 980) main_length), 161978#(<= (+ main_offset 960) main_length), 161979#(<= (+ main_offset 956) main_length), 161976#(<= (+ main_offset 968) main_length), 161977#(<= (+ main_offset 964) main_length), 161982#(<= (+ main_offset 944) main_length), 161983#(<= (+ main_offset 940) main_length), 161980#(<= (+ main_offset 952) main_length), 161981#(<= (+ main_offset 948) main_length), 161986#(<= (+ main_offset 928) main_length), 161987#(<= (+ main_offset 924) main_length), 161984#(<= (+ main_offset 936) main_length), 161985#(<= (+ main_offset 932) main_length), 161990#(<= (+ main_offset 912) main_length), 161991#(<= (+ main_offset 908) main_length), 161988#(<= (+ main_offset 920) main_length), 161989#(<= (+ main_offset 916) main_length), 161994#(<= (+ main_offset 896) main_length), 161995#(<= (+ main_offset 892) main_length), 161992#(<= (+ main_offset 904) main_length), 161993#(<= (+ main_offset 900) main_length), 161998#(<= (+ main_offset 880) main_length), 161999#(<= (+ main_offset 876) main_length), 161996#(<= (+ main_offset 888) main_length), 161997#(<= (+ main_offset 884) main_length), 162002#(<= (+ main_offset 864) main_length), 162003#(<= (+ main_offset 860) main_length), 162000#(<= (+ main_offset 872) main_length), 162001#(<= (+ main_offset 868) main_length), 162006#(<= (+ main_offset 848) main_length), 162007#(<= (+ main_offset 844) main_length), 162004#(<= (+ main_offset 856) main_length), 162005#(<= (+ main_offset 852) main_length), 162010#(<= (+ main_offset 832) main_length), 162011#(<= (+ main_offset 828) main_length), 162008#(<= (+ main_offset 840) main_length), 162009#(<= (+ main_offset 836) main_length), 162014#(<= (+ main_offset 816) main_length), 162015#(<= (+ main_offset 812) main_length), 162012#(<= (+ main_offset 824) main_length), 162013#(<= (+ main_offset 820) main_length), 162018#(<= (+ main_offset 800) main_length), 162019#(<= (+ main_offset 796) main_length), 162016#(<= (+ main_offset 808) main_length), 162017#(<= (+ main_offset 804) main_length), 162022#(<= (+ main_offset 784) main_length), 162023#(<= (+ main_offset 780) main_length), 162020#(<= (+ main_offset 792) main_length), 162021#(<= (+ main_offset 788) main_length), 162026#(<= (+ main_offset 768) main_length), 162027#(<= (+ main_offset 764) main_length), 162024#(<= (+ main_offset 776) main_length), 162025#(<= (+ main_offset 772) main_length), 162030#(<= (+ main_offset 752) main_length), 162031#(<= (+ main_offset 748) main_length), 162028#(<= (+ main_offset 760) main_length), 162029#(<= (+ main_offset 756) main_length), 162034#(<= (+ main_offset 736) main_length), 162035#(<= (+ main_offset 732) main_length), 162032#(<= (+ main_offset 744) main_length), 162033#(<= (+ main_offset 740) main_length), 162038#(<= (+ main_offset 720) main_length), 162039#(<= (+ main_offset 716) main_length), 162036#(<= (+ main_offset 728) main_length), 162037#(<= (+ main_offset 724) main_length), 162042#(<= (+ main_offset 704) main_length), 162043#(<= (+ main_offset 700) main_length), 162040#(<= (+ main_offset 712) main_length), 162041#(<= (+ main_offset 708) main_length), 162046#(<= (+ main_offset 688) main_length), 162047#(<= (+ main_offset 684) main_length), 162044#(<= (+ main_offset 696) main_length), 162045#(<= (+ main_offset 692) main_length)] [2018-07-23 13:54:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 35156 backedges. 0 proven. 35156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:08,565 INFO L450 AbstractCegarLoop]: Interpolant automaton has 190 states [2018-07-23 13:54:08,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2018-07-23 13:54:08,569 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17955, Invalid=17955, Unknown=0, NotChecked=0, Total=35910 [2018-07-23 13:54:08,569 INFO L87 Difference]: Start difference. First operand 378 states and 378 transitions. Second operand 190 states. [2018-07-23 13:54:09,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:09,048 INFO L93 Difference]: Finished difference Result 381 states and 381 transitions. [2018-07-23 13:54:09,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2018-07-23 13:54:09,048 INFO L78 Accepts]: Start accepts. Automaton has 190 states. Word has length 377 [2018-07-23 13:54:09,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:09,048 INFO L225 Difference]: With dead ends: 381 [2018-07-23 13:54:09,048 INFO L226 Difference]: Without dead ends: 380 [2018-07-23 13:54:09,050 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17955, Invalid=17955, Unknown=0, NotChecked=0, Total=35910 [2018-07-23 13:54:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2018-07-23 13:54:09,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2018-07-23 13:54:09,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-07-23 13:54:09,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 380 transitions. [2018-07-23 13:54:09,054 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 380 transitions. Word has length 377 [2018-07-23 13:54:09,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:09,055 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 380 transitions. [2018-07-23 13:54:09,055 INFO L472 AbstractCegarLoop]: Interpolant automaton has 190 states. [2018-07-23 13:54:09,055 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 380 transitions. [2018-07-23 13:54:09,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-07-23 13:54:09,057 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:09,057 INFO L357 BasicCegarLoop]: trace histogram [189, 188, 1, 1] [2018-07-23 13:54:09,057 INFO L414 AbstractCegarLoop]: === Iteration 189 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:09,057 INFO L82 PathProgramCache]: Analyzing trace with hash -485339048, now seen corresponding path program 188 times [2018-07-23 13:54:09,057 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 35532 backedges. 0 proven. 35532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:10,527 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:10,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [189] total 189 [2018-07-23 13:54:10,527 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:10,528 INFO L185 omatonBuilderFactory]: Interpolants [163842#(<= (+ main_offset 352) main_length), 163843#(<= (+ main_offset 348) main_length), 163840#(<= (+ main_offset 360) main_length), 163841#(<= (+ main_offset 356) main_length), 163846#(<= (+ main_offset 336) main_length), 163847#(<= (+ main_offset 332) main_length), 163844#(<= (+ main_offset 344) main_length), 163845#(<= (+ main_offset 340) main_length), 163850#(<= (+ main_offset 320) main_length), 163851#(<= (+ main_offset 316) main_length), 163848#(<= (+ main_offset 328) main_length), 163849#(<= (+ main_offset 324) main_length), 163854#(<= (+ main_offset 304) main_length), 163855#(<= (+ main_offset 300) main_length), 163852#(<= (+ main_offset 312) main_length), 163853#(<= (+ main_offset 308) main_length), 163856#(<= (+ main_offset 296) main_length), 163666#true, 163667#false, 163670#(<= (+ main_offset 1040) main_length), 163671#(<= (+ main_offset 1036) main_length), 163668#(<= (+ main_offset 1048) main_length), 163669#(<= (+ main_offset 1044) main_length), 163674#(<= (+ main_offset 1024) main_length), 163675#(<= (+ main_offset 1020) main_length), 163672#(<= (+ main_offset 1032) main_length), 163673#(<= (+ main_offset 1028) main_length), 163678#(<= (+ main_offset 1008) main_length), 163679#(<= (+ main_offset 1004) main_length), 163676#(<= (+ main_offset 1016) main_length), 163677#(<= (+ main_offset 1012) main_length), 163682#(<= (+ main_offset 992) main_length), 163683#(<= (+ main_offset 988) main_length), 163680#(<= (+ main_offset 1000) main_length), 163681#(<= (+ main_offset 996) main_length), 163686#(<= (+ main_offset 976) main_length), 163687#(<= (+ main_offset 972) main_length), 163684#(<= (+ main_offset 984) main_length), 163685#(<= (+ main_offset 980) main_length), 163690#(<= (+ main_offset 960) main_length), 163691#(<= (+ main_offset 956) main_length), 163688#(<= (+ main_offset 968) main_length), 163689#(<= (+ main_offset 964) main_length), 163694#(<= (+ main_offset 944) main_length), 163695#(<= (+ main_offset 940) main_length), 163692#(<= (+ main_offset 952) main_length), 163693#(<= (+ main_offset 948) main_length), 163698#(<= (+ main_offset 928) main_length), 163699#(<= (+ main_offset 924) main_length), 163696#(<= (+ main_offset 936) main_length), 163697#(<= (+ main_offset 932) main_length), 163702#(<= (+ main_offset 912) main_length), 163703#(<= (+ main_offset 908) main_length), 163700#(<= (+ main_offset 920) main_length), 163701#(<= (+ main_offset 916) main_length), 163706#(<= (+ main_offset 896) main_length), 163707#(<= (+ main_offset 892) main_length), 163704#(<= (+ main_offset 904) main_length), 163705#(<= (+ main_offset 900) main_length), 163710#(<= (+ main_offset 880) main_length), 163711#(<= (+ main_offset 876) main_length), 163708#(<= (+ main_offset 888) main_length), 163709#(<= (+ main_offset 884) main_length), 163714#(<= (+ main_offset 864) main_length), 163715#(<= (+ main_offset 860) main_length), 163712#(<= (+ main_offset 872) main_length), 163713#(<= (+ main_offset 868) main_length), 163718#(<= (+ main_offset 848) main_length), 163719#(<= (+ main_offset 844) main_length), 163716#(<= (+ main_offset 856) main_length), 163717#(<= (+ main_offset 852) main_length), 163722#(<= (+ main_offset 832) main_length), 163723#(<= (+ main_offset 828) main_length), 163720#(<= (+ main_offset 840) main_length), 163721#(<= (+ main_offset 836) main_length), 163726#(<= (+ main_offset 816) main_length), 163727#(<= (+ main_offset 812) main_length), 163724#(<= (+ main_offset 824) main_length), 163725#(<= (+ main_offset 820) main_length), 163730#(<= (+ main_offset 800) main_length), 163731#(<= (+ main_offset 796) main_length), 163728#(<= (+ main_offset 808) main_length), 163729#(<= (+ main_offset 804) main_length), 163734#(<= (+ main_offset 784) main_length), 163735#(<= (+ main_offset 780) main_length), 163732#(<= (+ main_offset 792) main_length), 163733#(<= (+ main_offset 788) main_length), 163738#(<= (+ main_offset 768) main_length), 163739#(<= (+ main_offset 764) main_length), 163736#(<= (+ main_offset 776) main_length), 163737#(<= (+ main_offset 772) main_length), 163742#(<= (+ main_offset 752) main_length), 163743#(<= (+ main_offset 748) main_length), 163740#(<= (+ main_offset 760) main_length), 163741#(<= (+ main_offset 756) main_length), 163746#(<= (+ main_offset 736) main_length), 163747#(<= (+ main_offset 732) main_length), 163744#(<= (+ main_offset 744) main_length), 163745#(<= (+ main_offset 740) main_length), 163750#(<= (+ main_offset 720) main_length), 163751#(<= (+ main_offset 716) main_length), 163748#(<= (+ main_offset 728) main_length), 163749#(<= (+ main_offset 724) main_length), 163754#(<= (+ main_offset 704) main_length), 163755#(<= (+ main_offset 700) main_length), 163752#(<= (+ main_offset 712) main_length), 163753#(<= (+ main_offset 708) main_length), 163758#(<= (+ main_offset 688) main_length), 163759#(<= (+ main_offset 684) main_length), 163756#(<= (+ main_offset 696) main_length), 163757#(<= (+ main_offset 692) main_length), 163762#(<= (+ main_offset 672) main_length), 163763#(<= (+ main_offset 668) main_length), 163760#(<= (+ main_offset 680) main_length), 163761#(<= (+ main_offset 676) main_length), 163766#(<= (+ main_offset 656) main_length), 163767#(<= (+ main_offset 652) main_length), 163764#(<= (+ main_offset 664) main_length), 163765#(<= (+ main_offset 660) main_length), 163770#(<= (+ main_offset 640) main_length), 163771#(<= (+ main_offset 636) main_length), 163768#(<= (+ main_offset 648) main_length), 163769#(<= (+ main_offset 644) main_length), 163774#(<= (+ main_offset 624) main_length), 163775#(<= (+ main_offset 620) main_length), 163772#(<= (+ main_offset 632) main_length), 163773#(<= (+ main_offset 628) main_length), 163778#(<= (+ main_offset 608) main_length), 163779#(<= (+ main_offset 604) main_length), 163776#(<= (+ main_offset 616) main_length), 163777#(<= (+ main_offset 612) main_length), 163782#(<= (+ main_offset 592) main_length), 163783#(<= (+ main_offset 588) main_length), 163780#(<= (+ main_offset 600) main_length), 163781#(<= (+ main_offset 596) main_length), 163786#(<= (+ main_offset 576) main_length), 163787#(<= (+ main_offset 572) main_length), 163784#(<= (+ main_offset 584) main_length), 163785#(<= (+ main_offset 580) main_length), 163790#(<= (+ main_offset 560) main_length), 163791#(<= (+ main_offset 556) main_length), 163788#(<= (+ main_offset 568) main_length), 163789#(<= (+ main_offset 564) main_length), 163794#(<= (+ main_offset 544) main_length), 163795#(<= (+ main_offset 540) main_length), 163792#(<= (+ main_offset 552) main_length), 163793#(<= (+ main_offset 548) main_length), 163798#(<= (+ main_offset 528) main_length), 163799#(<= (+ main_offset 524) main_length), 163796#(<= (+ main_offset 536) main_length), 163797#(<= (+ main_offset 532) main_length), 163802#(<= (+ main_offset 512) main_length), 163803#(<= (+ main_offset 508) main_length), 163800#(<= (+ main_offset 520) main_length), 163801#(<= (+ main_offset 516) main_length), 163806#(<= (+ main_offset 496) main_length), 163807#(<= (+ main_offset 492) main_length), 163804#(<= (+ main_offset 504) main_length), 163805#(<= (+ main_offset 500) main_length), 163810#(<= (+ main_offset 480) main_length), 163811#(<= (+ main_offset 476) main_length), 163808#(<= (+ main_offset 488) main_length), 163809#(<= (+ main_offset 484) main_length), 163814#(<= (+ main_offset 464) main_length), 163815#(<= (+ main_offset 460) main_length), 163812#(<= (+ main_offset 472) main_length), 163813#(<= (+ main_offset 468) main_length), 163818#(<= (+ main_offset 448) main_length), 163819#(<= (+ main_offset 444) main_length), 163816#(<= (+ main_offset 456) main_length), 163817#(<= (+ main_offset 452) main_length), 163822#(<= (+ main_offset 432) main_length), 163823#(<= (+ main_offset 428) main_length), 163820#(<= (+ main_offset 440) main_length), 163821#(<= (+ main_offset 436) main_length), 163826#(<= (+ main_offset 416) main_length), 163827#(<= (+ main_offset 412) main_length), 163824#(<= (+ main_offset 424) main_length), 163825#(<= (+ main_offset 420) main_length), 163830#(<= (+ main_offset 400) main_length), 163831#(<= (+ main_offset 396) main_length), 163828#(<= (+ main_offset 408) main_length), 163829#(<= (+ main_offset 404) main_length), 163834#(<= (+ main_offset 384) main_length), 163835#(<= (+ main_offset 380) main_length), 163832#(<= (+ main_offset 392) main_length), 163833#(<= (+ main_offset 388) main_length), 163838#(<= (+ main_offset 368) main_length), 163839#(<= (+ main_offset 364) main_length), 163836#(<= (+ main_offset 376) main_length), 163837#(<= (+ main_offset 372) main_length)] [2018-07-23 13:54:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 35532 backedges. 0 proven. 35532 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:10,529 INFO L450 AbstractCegarLoop]: Interpolant automaton has 191 states [2018-07-23 13:54:10,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2018-07-23 13:54:10,531 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:54:10,531 INFO L87 Difference]: Start difference. First operand 380 states and 380 transitions. Second operand 191 states. [2018-07-23 13:54:11,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:11,778 INFO L93 Difference]: Finished difference Result 383 states and 383 transitions. [2018-07-23 13:54:11,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2018-07-23 13:54:11,778 INFO L78 Accepts]: Start accepts. Automaton has 191 states. Word has length 379 [2018-07-23 13:54:11,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:11,779 INFO L225 Difference]: With dead ends: 383 [2018-07-23 13:54:11,779 INFO L226 Difference]: Without dead ends: 382 [2018-07-23 13:54:11,780 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18145, Invalid=18145, Unknown=0, NotChecked=0, Total=36290 [2018-07-23 13:54:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-07-23 13:54:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-07-23 13:54:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-07-23 13:54:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 382 transitions. [2018-07-23 13:54:11,785 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 382 transitions. Word has length 379 [2018-07-23 13:54:11,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:11,785 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 382 transitions. [2018-07-23 13:54:11,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 191 states. [2018-07-23 13:54:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 382 transitions. [2018-07-23 13:54:11,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-07-23 13:54:11,786 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:11,787 INFO L357 BasicCegarLoop]: trace histogram [190, 189, 1, 1] [2018-07-23 13:54:11,787 INFO L414 AbstractCegarLoop]: === Iteration 190 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:11,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1740611226, now seen corresponding path program 189 times [2018-07-23 13:54:11,787 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:13,169 INFO L134 CoverageAnalysis]: Checked inductivity of 35910 backedges. 0 proven. 35910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:13,170 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:13,170 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [190] total 190 [2018-07-23 13:54:13,170 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:13,170 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 13:54:13,170 INFO L185 omatonBuilderFactory]: Interpolants [165387#true, 165390#(<= (+ main_offset 1044) main_length), 165391#(<= (+ main_offset 1040) main_length), 165388#false, 165389#(<= (+ main_offset 1048) main_length), 165394#(<= (+ main_offset 1028) main_length), 165395#(<= (+ main_offset 1024) main_length), 165392#(<= (+ main_offset 1036) main_length), 165393#(<= (+ main_offset 1032) main_length), 165398#(<= (+ main_offset 1012) main_length), 165399#(<= (+ main_offset 1008) main_length), 165396#(<= (+ main_offset 1020) main_length), 165397#(<= (+ main_offset 1016) main_length), 165402#(<= (+ main_offset 996) main_length), 165403#(<= (+ main_offset 992) main_length), 165400#(<= (+ main_offset 1004) main_length), 165401#(<= (+ main_offset 1000) main_length), 165406#(<= (+ main_offset 980) main_length), 165407#(<= (+ main_offset 976) main_length), 165404#(<= (+ main_offset 988) main_length), 165405#(<= (+ main_offset 984) main_length), 165410#(<= (+ main_offset 964) main_length), 165411#(<= (+ main_offset 960) main_length), 165408#(<= (+ main_offset 972) main_length), 165409#(<= (+ main_offset 968) main_length), 165414#(<= (+ main_offset 948) main_length), 165415#(<= (+ main_offset 944) main_length), 165412#(<= (+ main_offset 956) main_length), 165413#(<= (+ main_offset 952) main_length), 165418#(<= (+ main_offset 932) main_length), 165419#(<= (+ main_offset 928) main_length), 165416#(<= (+ main_offset 940) main_length), 165417#(<= (+ main_offset 936) main_length), 165422#(<= (+ main_offset 916) main_length), 165423#(<= (+ main_offset 912) main_length), 165420#(<= (+ main_offset 924) main_length), 165421#(<= (+ main_offset 920) main_length), 165426#(<= (+ main_offset 900) main_length), 165427#(<= (+ main_offset 896) main_length), 165424#(<= (+ main_offset 908) main_length), 165425#(<= (+ main_offset 904) main_length), 165430#(<= (+ main_offset 884) main_length), 165431#(<= (+ main_offset 880) main_length), 165428#(<= (+ main_offset 892) main_length), 165429#(<= (+ main_offset 888) main_length), 165434#(<= (+ main_offset 868) main_length), 165435#(<= (+ main_offset 864) main_length), 165432#(<= (+ main_offset 876) main_length), 165433#(<= (+ main_offset 872) main_length), 165438#(<= (+ main_offset 852) main_length), 165439#(<= (+ main_offset 848) main_length), 165436#(<= (+ main_offset 860) main_length), 165437#(<= (+ main_offset 856) main_length), 165442#(<= (+ main_offset 836) main_length), 165443#(<= (+ main_offset 832) main_length), 165440#(<= (+ main_offset 844) main_length), 165441#(<= (+ main_offset 840) main_length), 165446#(<= (+ main_offset 820) main_length), 165447#(<= (+ main_offset 816) main_length), 165444#(<= (+ main_offset 828) main_length), 165445#(<= (+ main_offset 824) main_length), 165450#(<= (+ main_offset 804) main_length), 165451#(<= (+ main_offset 800) main_length), 165448#(<= (+ main_offset 812) main_length), 165449#(<= (+ main_offset 808) main_length), 165454#(<= (+ main_offset 788) main_length), 165455#(<= (+ main_offset 784) main_length), 165452#(<= (+ main_offset 796) main_length), 165453#(<= (+ main_offset 792) main_length), 165458#(<= (+ main_offset 772) main_length), 165459#(<= (+ main_offset 768) main_length), 165456#(<= (+ main_offset 780) main_length), 165457#(<= (+ main_offset 776) main_length), 165462#(<= (+ main_offset 756) main_length), 165463#(<= (+ main_offset 752) main_length), 165460#(<= (+ main_offset 764) main_length), 165461#(<= (+ main_offset 760) main_length), 165466#(<= (+ main_offset 740) main_length), 165467#(<= (+ main_offset 736) main_length), 165464#(<= (+ main_offset 748) main_length), 165465#(<= (+ main_offset 744) main_length), 165470#(<= (+ main_offset 724) main_length), 165471#(<= (+ main_offset 720) main_length), 165468#(<= (+ main_offset 732) main_length), 165469#(<= (+ main_offset 728) main_length), 165474#(<= (+ main_offset 708) main_length), 165475#(<= (+ main_offset 704) main_length), 165472#(<= (+ main_offset 716) main_length), 165473#(<= (+ main_offset 712) main_length), 165478#(<= (+ main_offset 692) main_length), 165479#(<= (+ main_offset 688) main_length), 165476#(<= (+ main_offset 700) main_length), 165477#(<= (+ main_offset 696) main_length), 165482#(<= (+ main_offset 676) main_length), 165483#(<= (+ main_offset 672) main_length), 165480#(<= (+ main_offset 684) main_length), 165481#(<= (+ main_offset 680) main_length), 165486#(<= (+ main_offset 660) main_length), 165487#(<= (+ main_offset 656) main_length), 165484#(<= (+ main_offset 668) main_length), 165485#(<= (+ main_offset 664) main_length), 165490#(<= (+ main_offset 644) main_length), 165491#(<= (+ main_offset 640) main_length), 165488#(<= (+ main_offset 652) main_length), 165489#(<= (+ main_offset 648) main_length), 165494#(<= (+ main_offset 628) main_length), 165495#(<= (+ main_offset 624) main_length), 165492#(<= (+ main_offset 636) main_length), 165493#(<= (+ main_offset 632) main_length), 165498#(<= (+ main_offset 612) main_length), 165499#(<= (+ main_offset 608) main_length), 165496#(<= (+ main_offset 620) main_length), 165497#(<= (+ main_offset 616) main_length), 165502#(<= (+ main_offset 596) main_length), 165503#(<= (+ main_offset 592) main_length), 165500#(<= (+ main_offset 604) main_length), 165501#(<= (+ main_offset 600) main_length), 165506#(<= (+ main_offset 580) main_length), 165507#(<= (+ main_offset 576) main_length), 165504#(<= (+ main_offset 588) main_length), 165505#(<= (+ main_offset 584) main_length), 165510#(<= (+ main_offset 564) main_length), 165511#(<= (+ main_offset 560) main_length), 165508#(<= (+ main_offset 572) main_length), 165509#(<= (+ main_offset 568) main_length), 165514#(<= (+ main_offset 548) main_length), 165515#(<= (+ main_offset 544) main_length), 165512#(<= (+ main_offset 556) main_length), 165513#(<= (+ main_offset 552) main_length), 165518#(<= (+ main_offset 532) main_length), 165519#(<= (+ main_offset 528) main_length), 165516#(<= (+ main_offset 540) main_length), 165517#(<= (+ main_offset 536) main_length), 165522#(<= (+ main_offset 516) main_length), 165523#(<= (+ main_offset 512) main_length), 165520#(<= (+ main_offset 524) main_length), 165521#(<= (+ main_offset 520) main_length), 165526#(<= (+ main_offset 500) main_length), 165527#(<= (+ main_offset 496) main_length), 165524#(<= (+ main_offset 508) main_length), 165525#(<= (+ main_offset 504) main_length), 165530#(<= (+ main_offset 484) main_length), 165531#(<= (+ main_offset 480) main_length), 165528#(<= (+ main_offset 492) main_length), 165529#(<= (+ main_offset 488) main_length), 165534#(<= (+ main_offset 468) main_length), 165535#(<= (+ main_offset 464) main_length), 165532#(<= (+ main_offset 476) main_length), 165533#(<= (+ main_offset 472) main_length), 165538#(<= (+ main_offset 452) main_length), 165539#(<= (+ main_offset 448) main_length), 165536#(<= (+ main_offset 460) main_length), 165537#(<= (+ main_offset 456) main_length), 165542#(<= (+ main_offset 436) main_length), 165543#(<= (+ main_offset 432) main_length), 165540#(<= (+ main_offset 444) main_length), 165541#(<= (+ main_offset 440) main_length), 165546#(<= (+ main_offset 420) main_length), 165547#(<= (+ main_offset 416) main_length), 165544#(<= (+ main_offset 428) main_length), 165545#(<= (+ main_offset 424) main_length), 165550#(<= (+ main_offset 404) main_length), 165551#(<= (+ main_offset 400) main_length), 165548#(<= (+ main_offset 412) main_length), 165549#(<= (+ main_offset 408) main_length), 165554#(<= (+ main_offset 388) main_length), 165555#(<= (+ main_offset 384) main_length), 165552#(<= (+ main_offset 396) main_length), 165553#(<= (+ main_offset 392) main_length), 165558#(<= (+ main_offset 372) main_length), 165559#(<= (+ main_offset 368) main_length), 165556#(<= (+ main_offset 380) main_length), 165557#(<= (+ main_offset 376) main_length), 165562#(<= (+ main_offset 356) main_length), 165563#(<= (+ main_offset 352) main_length), 165560#(<= (+ main_offset 364) main_length), 165561#(<= (+ main_offset 360) main_length), 165566#(<= (+ main_offset 340) main_length), 165567#(<= (+ main_offset 336) main_length), 165564#(<= (+ main_offset 348) main_length), 165565#(<= (+ main_offset 344) main_length), 165570#(<= (+ main_offset 324) main_length), 165571#(<= (+ main_offset 320) main_length), 165568#(<= (+ main_offset 332) main_length), 165569#(<= (+ main_offset 328) main_length), 165574#(<= (+ main_offset 308) main_length), 165575#(<= (+ main_offset 304) main_length), 165572#(<= (+ main_offset 316) main_length), 165573#(<= (+ main_offset 312) main_length), 165578#(<= (+ main_offset 292) main_length), 165576#(<= (+ main_offset 300) main_length), 165577#(<= (+ main_offset 296) main_length)] [2018-07-23 13:54:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 35910 backedges. 0 proven. 35910 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:13,172 INFO L450 AbstractCegarLoop]: Interpolant automaton has 192 states [2018-07-23 13:54:13,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2018-07-23 13:54:13,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2018-07-23 13:54:13,176 INFO L87 Difference]: Start difference. First operand 382 states and 382 transitions. Second operand 192 states. [2018-07-23 13:54:14,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:14,956 INFO L93 Difference]: Finished difference Result 385 states and 385 transitions. [2018-07-23 13:54:14,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2018-07-23 13:54:14,956 INFO L78 Accepts]: Start accepts. Automaton has 192 states. Word has length 381 [2018-07-23 13:54:14,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:14,957 INFO L225 Difference]: With dead ends: 385 [2018-07-23 13:54:14,957 INFO L226 Difference]: Without dead ends: 384 [2018-07-23 13:54:14,958 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2018-07-23 13:54:14,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-07-23 13:54:14,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2018-07-23 13:54:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2018-07-23 13:54:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 384 transitions. [2018-07-23 13:54:14,963 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 384 transitions. Word has length 381 [2018-07-23 13:54:14,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:14,963 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 384 transitions. [2018-07-23 13:54:14,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 192 states. [2018-07-23 13:54:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 384 transitions. [2018-07-23 13:54:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-07-23 13:54:14,964 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:14,964 INFO L357 BasicCegarLoop]: trace histogram [191, 190, 1, 1] [2018-07-23 13:54:14,965 INFO L414 AbstractCegarLoop]: === Iteration 191 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:14,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1985111132, now seen corresponding path program 190 times [2018-07-23 13:54:14,965 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 36290 backedges. 0 proven. 36290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:16,350 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:16,350 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [191] total 191 [2018-07-23 13:54:16,350 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:16,351 INFO L185 omatonBuilderFactory]: Interpolants [167118#false, 167119#(<= (+ main_offset 1048) main_length), 167117#true, 167122#(<= (+ main_offset 1036) main_length), 167123#(<= (+ main_offset 1032) main_length), 167120#(<= (+ main_offset 1044) main_length), 167121#(<= (+ main_offset 1040) main_length), 167126#(<= (+ main_offset 1020) main_length), 167127#(<= (+ main_offset 1016) main_length), 167124#(<= (+ main_offset 1028) main_length), 167125#(<= (+ main_offset 1024) main_length), 167130#(<= (+ main_offset 1004) main_length), 167131#(<= (+ main_offset 1000) main_length), 167128#(<= (+ main_offset 1012) main_length), 167129#(<= (+ main_offset 1008) main_length), 167134#(<= (+ main_offset 988) main_length), 167135#(<= (+ main_offset 984) main_length), 167132#(<= (+ main_offset 996) main_length), 167133#(<= (+ main_offset 992) main_length), 167138#(<= (+ main_offset 972) main_length), 167139#(<= (+ main_offset 968) main_length), 167136#(<= (+ main_offset 980) main_length), 167137#(<= (+ main_offset 976) main_length), 167142#(<= (+ main_offset 956) main_length), 167143#(<= (+ main_offset 952) main_length), 167140#(<= (+ main_offset 964) main_length), 167141#(<= (+ main_offset 960) main_length), 167146#(<= (+ main_offset 940) main_length), 167147#(<= (+ main_offset 936) main_length), 167144#(<= (+ main_offset 948) main_length), 167145#(<= (+ main_offset 944) main_length), 167150#(<= (+ main_offset 924) main_length), 167151#(<= (+ main_offset 920) main_length), 167148#(<= (+ main_offset 932) main_length), 167149#(<= (+ main_offset 928) main_length), 167154#(<= (+ main_offset 908) main_length), 167155#(<= (+ main_offset 904) main_length), 167152#(<= (+ main_offset 916) main_length), 167153#(<= (+ main_offset 912) main_length), 167158#(<= (+ main_offset 892) main_length), 167159#(<= (+ main_offset 888) main_length), 167156#(<= (+ main_offset 900) main_length), 167157#(<= (+ main_offset 896) main_length), 167162#(<= (+ main_offset 876) main_length), 167163#(<= (+ main_offset 872) main_length), 167160#(<= (+ main_offset 884) main_length), 167161#(<= (+ main_offset 880) main_length), 167166#(<= (+ main_offset 860) main_length), 167167#(<= (+ main_offset 856) main_length), 167164#(<= (+ main_offset 868) main_length), 167165#(<= (+ main_offset 864) main_length), 167170#(<= (+ main_offset 844) main_length), 167171#(<= (+ main_offset 840) main_length), 167168#(<= (+ main_offset 852) main_length), 167169#(<= (+ main_offset 848) main_length), 167174#(<= (+ main_offset 828) main_length), 167175#(<= (+ main_offset 824) main_length), 167172#(<= (+ main_offset 836) main_length), 167173#(<= (+ main_offset 832) main_length), 167178#(<= (+ main_offset 812) main_length), 167179#(<= (+ main_offset 808) main_length), 167176#(<= (+ main_offset 820) main_length), 167177#(<= (+ main_offset 816) main_length), 167182#(<= (+ main_offset 796) main_length), 167183#(<= (+ main_offset 792) main_length), 167180#(<= (+ main_offset 804) main_length), 167181#(<= (+ main_offset 800) main_length), 167186#(<= (+ main_offset 780) main_length), 167187#(<= (+ main_offset 776) main_length), 167184#(<= (+ main_offset 788) main_length), 167185#(<= (+ main_offset 784) main_length), 167190#(<= (+ main_offset 764) main_length), 167191#(<= (+ main_offset 760) main_length), 167188#(<= (+ main_offset 772) main_length), 167189#(<= (+ main_offset 768) main_length), 167194#(<= (+ main_offset 748) main_length), 167195#(<= (+ main_offset 744) main_length), 167192#(<= (+ main_offset 756) main_length), 167193#(<= (+ main_offset 752) main_length), 167198#(<= (+ main_offset 732) main_length), 167199#(<= (+ main_offset 728) main_length), 167196#(<= (+ main_offset 740) main_length), 167197#(<= (+ main_offset 736) main_length), 167202#(<= (+ main_offset 716) main_length), 167203#(<= (+ main_offset 712) main_length), 167200#(<= (+ main_offset 724) main_length), 167201#(<= (+ main_offset 720) main_length), 167206#(<= (+ main_offset 700) main_length), 167207#(<= (+ main_offset 696) main_length), 167204#(<= (+ main_offset 708) main_length), 167205#(<= (+ main_offset 704) main_length), 167210#(<= (+ main_offset 684) main_length), 167211#(<= (+ main_offset 680) main_length), 167208#(<= (+ main_offset 692) main_length), 167209#(<= (+ main_offset 688) main_length), 167214#(<= (+ main_offset 668) main_length), 167215#(<= (+ main_offset 664) main_length), 167212#(<= (+ main_offset 676) main_length), 167213#(<= (+ main_offset 672) main_length), 167218#(<= (+ main_offset 652) main_length), 167219#(<= (+ main_offset 648) main_length), 167216#(<= (+ main_offset 660) main_length), 167217#(<= (+ main_offset 656) main_length), 167222#(<= (+ main_offset 636) main_length), 167223#(<= (+ main_offset 632) main_length), 167220#(<= (+ main_offset 644) main_length), 167221#(<= (+ main_offset 640) main_length), 167226#(<= (+ main_offset 620) main_length), 167227#(<= (+ main_offset 616) main_length), 167224#(<= (+ main_offset 628) main_length), 167225#(<= (+ main_offset 624) main_length), 167230#(<= (+ main_offset 604) main_length), 167231#(<= (+ main_offset 600) main_length), 167228#(<= (+ main_offset 612) main_length), 167229#(<= (+ main_offset 608) main_length), 167234#(<= (+ main_offset 588) main_length), 167235#(<= (+ main_offset 584) main_length), 167232#(<= (+ main_offset 596) main_length), 167233#(<= (+ main_offset 592) main_length), 167238#(<= (+ main_offset 572) main_length), 167239#(<= (+ main_offset 568) main_length), 167236#(<= (+ main_offset 580) main_length), 167237#(<= (+ main_offset 576) main_length), 167242#(<= (+ main_offset 556) main_length), 167243#(<= (+ main_offset 552) main_length), 167240#(<= (+ main_offset 564) main_length), 167241#(<= (+ main_offset 560) main_length), 167246#(<= (+ main_offset 540) main_length), 167247#(<= (+ main_offset 536) main_length), 167244#(<= (+ main_offset 548) main_length), 167245#(<= (+ main_offset 544) main_length), 167250#(<= (+ main_offset 524) main_length), 167251#(<= (+ main_offset 520) main_length), 167248#(<= (+ main_offset 532) main_length), 167249#(<= (+ main_offset 528) main_length), 167254#(<= (+ main_offset 508) main_length), 167255#(<= (+ main_offset 504) main_length), 167252#(<= (+ main_offset 516) main_length), 167253#(<= (+ main_offset 512) main_length), 167258#(<= (+ main_offset 492) main_length), 167259#(<= (+ main_offset 488) main_length), 167256#(<= (+ main_offset 500) main_length), 167257#(<= (+ main_offset 496) main_length), 167262#(<= (+ main_offset 476) main_length), 167263#(<= (+ main_offset 472) main_length), 167260#(<= (+ main_offset 484) main_length), 167261#(<= (+ main_offset 480) main_length), 167266#(<= (+ main_offset 460) main_length), 167267#(<= (+ main_offset 456) main_length), 167264#(<= (+ main_offset 468) main_length), 167265#(<= (+ main_offset 464) main_length), 167270#(<= (+ main_offset 444) main_length), 167271#(<= (+ main_offset 440) main_length), 167268#(<= (+ main_offset 452) main_length), 167269#(<= (+ main_offset 448) main_length), 167274#(<= (+ main_offset 428) main_length), 167275#(<= (+ main_offset 424) main_length), 167272#(<= (+ main_offset 436) main_length), 167273#(<= (+ main_offset 432) main_length), 167278#(<= (+ main_offset 412) main_length), 167279#(<= (+ main_offset 408) main_length), 167276#(<= (+ main_offset 420) main_length), 167277#(<= (+ main_offset 416) main_length), 167282#(<= (+ main_offset 396) main_length), 167283#(<= (+ main_offset 392) main_length), 167280#(<= (+ main_offset 404) main_length), 167281#(<= (+ main_offset 400) main_length), 167286#(<= (+ main_offset 380) main_length), 167287#(<= (+ main_offset 376) main_length), 167284#(<= (+ main_offset 388) main_length), 167285#(<= (+ main_offset 384) main_length), 167290#(<= (+ main_offset 364) main_length), 167291#(<= (+ main_offset 360) main_length), 167288#(<= (+ main_offset 372) main_length), 167289#(<= (+ main_offset 368) main_length), 167294#(<= (+ main_offset 348) main_length), 167295#(<= (+ main_offset 344) main_length), 167292#(<= (+ main_offset 356) main_length), 167293#(<= (+ main_offset 352) main_length), 167298#(<= (+ main_offset 332) main_length), 167299#(<= (+ main_offset 328) main_length), 167296#(<= (+ main_offset 340) main_length), 167297#(<= (+ main_offset 336) main_length), 167302#(<= (+ main_offset 316) main_length), 167303#(<= (+ main_offset 312) main_length), 167300#(<= (+ main_offset 324) main_length), 167301#(<= (+ main_offset 320) main_length), 167306#(<= (+ main_offset 300) main_length), 167307#(<= (+ main_offset 296) main_length), 167304#(<= (+ main_offset 308) main_length), 167305#(<= (+ main_offset 304) main_length), 167308#(<= (+ main_offset 292) main_length), 167309#(<= (+ main_offset 288) main_length)] [2018-07-23 13:54:16,353 INFO L134 CoverageAnalysis]: Checked inductivity of 36290 backedges. 0 proven. 36290 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:16,353 INFO L450 AbstractCegarLoop]: Interpolant automaton has 193 states [2018-07-23 13:54:16,356 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2018-07-23 13:54:16,357 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2018-07-23 13:54:16,358 INFO L87 Difference]: Start difference. First operand 384 states and 384 transitions. Second operand 193 states. [2018-07-23 13:54:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:17,456 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2018-07-23 13:54:17,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2018-07-23 13:54:17,456 INFO L78 Accepts]: Start accepts. Automaton has 193 states. Word has length 383 [2018-07-23 13:54:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:17,457 INFO L225 Difference]: With dead ends: 387 [2018-07-23 13:54:17,457 INFO L226 Difference]: Without dead ends: 386 [2018-07-23 13:54:17,458 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2018-07-23 13:54:17,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2018-07-23 13:54:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2018-07-23 13:54:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2018-07-23 13:54:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2018-07-23 13:54:17,463 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 383 [2018-07-23 13:54:17,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:17,463 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2018-07-23 13:54:17,463 INFO L472 AbstractCegarLoop]: Interpolant automaton has 193 states. [2018-07-23 13:54:17,463 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2018-07-23 13:54:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-07-23 13:54:17,465 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:17,465 INFO L357 BasicCegarLoop]: trace histogram [192, 191, 1, 1] [2018-07-23 13:54:17,465 INFO L414 AbstractCegarLoop]: === Iteration 192 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:17,466 INFO L82 PathProgramCache]: Analyzing trace with hash 726319518, now seen corresponding path program 191 times [2018-07-23 13:54:17,466 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 36672 backedges. 0 proven. 36672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:18,864 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:18,864 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [192] total 192 [2018-07-23 13:54:18,864 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:18,865 INFO L185 omatonBuilderFactory]: Interpolants [168962#(<= (+ main_offset 632) main_length), 168963#(<= (+ main_offset 628) main_length), 168960#(<= (+ main_offset 640) main_length), 168961#(<= (+ main_offset 636) main_length), 168966#(<= (+ main_offset 616) main_length), 168967#(<= (+ main_offset 612) main_length), 168964#(<= (+ main_offset 624) main_length), 168965#(<= (+ main_offset 620) main_length), 168970#(<= (+ main_offset 600) main_length), 168971#(<= (+ main_offset 596) main_length), 168968#(<= (+ main_offset 608) main_length), 168969#(<= (+ main_offset 604) main_length), 168974#(<= (+ main_offset 584) main_length), 168975#(<= (+ main_offset 580) main_length), 168972#(<= (+ main_offset 592) main_length), 168973#(<= (+ main_offset 588) main_length), 168978#(<= (+ main_offset 568) main_length), 168979#(<= (+ main_offset 564) main_length), 168976#(<= (+ main_offset 576) main_length), 168977#(<= (+ main_offset 572) main_length), 168982#(<= (+ main_offset 552) main_length), 168983#(<= (+ main_offset 548) main_length), 168980#(<= (+ main_offset 560) main_length), 168981#(<= (+ main_offset 556) main_length), 168986#(<= (+ main_offset 536) main_length), 168987#(<= (+ main_offset 532) main_length), 168984#(<= (+ main_offset 544) main_length), 168985#(<= (+ main_offset 540) main_length), 168990#(<= (+ main_offset 520) main_length), 168991#(<= (+ main_offset 516) main_length), 168988#(<= (+ main_offset 528) main_length), 168989#(<= (+ main_offset 524) main_length), 168994#(<= (+ main_offset 504) main_length), 168995#(<= (+ main_offset 500) main_length), 168992#(<= (+ main_offset 512) main_length), 168993#(<= (+ main_offset 508) main_length), 168998#(<= (+ main_offset 488) main_length), 168999#(<= (+ main_offset 484) main_length), 168996#(<= (+ main_offset 496) main_length), 168997#(<= (+ main_offset 492) main_length), 169002#(<= (+ main_offset 472) main_length), 169003#(<= (+ main_offset 468) main_length), 169000#(<= (+ main_offset 480) main_length), 169001#(<= (+ main_offset 476) main_length), 169006#(<= (+ main_offset 456) main_length), 169007#(<= (+ main_offset 452) main_length), 169004#(<= (+ main_offset 464) main_length), 169005#(<= (+ main_offset 460) main_length), 169010#(<= (+ main_offset 440) main_length), 169011#(<= (+ main_offset 436) main_length), 169008#(<= (+ main_offset 448) main_length), 169009#(<= (+ main_offset 444) main_length), 169014#(<= (+ main_offset 424) main_length), 169015#(<= (+ main_offset 420) main_length), 169012#(<= (+ main_offset 432) main_length), 169013#(<= (+ main_offset 428) main_length), 169018#(<= (+ main_offset 408) main_length), 169019#(<= (+ main_offset 404) main_length), 169016#(<= (+ main_offset 416) main_length), 169017#(<= (+ main_offset 412) main_length), 169022#(<= (+ main_offset 392) main_length), 169023#(<= (+ main_offset 388) main_length), 169020#(<= (+ main_offset 400) main_length), 169021#(<= (+ main_offset 396) main_length), 169026#(<= (+ main_offset 376) main_length), 169027#(<= (+ main_offset 372) main_length), 169024#(<= (+ main_offset 384) main_length), 169025#(<= (+ main_offset 380) main_length), 169030#(<= (+ main_offset 360) main_length), 169031#(<= (+ main_offset 356) main_length), 169028#(<= (+ main_offset 368) main_length), 169029#(<= (+ main_offset 364) main_length), 169034#(<= (+ main_offset 344) main_length), 169035#(<= (+ main_offset 340) main_length), 169032#(<= (+ main_offset 352) main_length), 169033#(<= (+ main_offset 348) main_length), 169038#(<= (+ main_offset 328) main_length), 169039#(<= (+ main_offset 324) main_length), 169036#(<= (+ main_offset 336) main_length), 169037#(<= (+ main_offset 332) main_length), 169042#(<= (+ main_offset 312) main_length), 169043#(<= (+ main_offset 308) main_length), 169040#(<= (+ main_offset 320) main_length), 169041#(<= (+ main_offset 316) main_length), 169046#(<= (+ main_offset 296) main_length), 169047#(<= (+ main_offset 292) main_length), 169044#(<= (+ main_offset 304) main_length), 169045#(<= (+ main_offset 300) main_length), 169048#(<= (+ main_offset 288) main_length), 169049#(<= (+ main_offset 284) main_length), 168858#(<= (+ main_offset 1048) main_length), 168859#(<= (+ main_offset 1044) main_length), 168856#true, 168857#false, 168862#(<= (+ main_offset 1032) main_length), 168863#(<= (+ main_offset 1028) main_length), 168860#(<= (+ main_offset 1040) main_length), 168861#(<= (+ main_offset 1036) main_length), 168866#(<= (+ main_offset 1016) main_length), 168867#(<= (+ main_offset 1012) main_length), 168864#(<= (+ main_offset 1024) main_length), 168865#(<= (+ main_offset 1020) main_length), 168870#(<= (+ main_offset 1000) main_length), 168871#(<= (+ main_offset 996) main_length), 168868#(<= (+ main_offset 1008) main_length), 168869#(<= (+ main_offset 1004) main_length), 168874#(<= (+ main_offset 984) main_length), 168875#(<= (+ main_offset 980) main_length), 168872#(<= (+ main_offset 992) main_length), 168873#(<= (+ main_offset 988) main_length), 168878#(<= (+ main_offset 968) main_length), 168879#(<= (+ main_offset 964) main_length), 168876#(<= (+ main_offset 976) main_length), 168877#(<= (+ main_offset 972) main_length), 168882#(<= (+ main_offset 952) main_length), 168883#(<= (+ main_offset 948) main_length), 168880#(<= (+ main_offset 960) main_length), 168881#(<= (+ main_offset 956) main_length), 168886#(<= (+ main_offset 936) main_length), 168887#(<= (+ main_offset 932) main_length), 168884#(<= (+ main_offset 944) main_length), 168885#(<= (+ main_offset 940) main_length), 168890#(<= (+ main_offset 920) main_length), 168891#(<= (+ main_offset 916) main_length), 168888#(<= (+ main_offset 928) main_length), 168889#(<= (+ main_offset 924) main_length), 168894#(<= (+ main_offset 904) main_length), 168895#(<= (+ main_offset 900) main_length), 168892#(<= (+ main_offset 912) main_length), 168893#(<= (+ main_offset 908) main_length), 168898#(<= (+ main_offset 888) main_length), 168899#(<= (+ main_offset 884) main_length), 168896#(<= (+ main_offset 896) main_length), 168897#(<= (+ main_offset 892) main_length), 168902#(<= (+ main_offset 872) main_length), 168903#(<= (+ main_offset 868) main_length), 168900#(<= (+ main_offset 880) main_length), 168901#(<= (+ main_offset 876) main_length), 168906#(<= (+ main_offset 856) main_length), 168907#(<= (+ main_offset 852) main_length), 168904#(<= (+ main_offset 864) main_length), 168905#(<= (+ main_offset 860) main_length), 168910#(<= (+ main_offset 840) main_length), 168911#(<= (+ main_offset 836) main_length), 168908#(<= (+ main_offset 848) main_length), 168909#(<= (+ main_offset 844) main_length), 168914#(<= (+ main_offset 824) main_length), 168915#(<= (+ main_offset 820) main_length), 168912#(<= (+ main_offset 832) main_length), 168913#(<= (+ main_offset 828) main_length), 168918#(<= (+ main_offset 808) main_length), 168919#(<= (+ main_offset 804) main_length), 168916#(<= (+ main_offset 816) main_length), 168917#(<= (+ main_offset 812) main_length), 168922#(<= (+ main_offset 792) main_length), 168923#(<= (+ main_offset 788) main_length), 168920#(<= (+ main_offset 800) main_length), 168921#(<= (+ main_offset 796) main_length), 168926#(<= (+ main_offset 776) main_length), 168927#(<= (+ main_offset 772) main_length), 168924#(<= (+ main_offset 784) main_length), 168925#(<= (+ main_offset 780) main_length), 168930#(<= (+ main_offset 760) main_length), 168931#(<= (+ main_offset 756) main_length), 168928#(<= (+ main_offset 768) main_length), 168929#(<= (+ main_offset 764) main_length), 168934#(<= (+ main_offset 744) main_length), 168935#(<= (+ main_offset 740) main_length), 168932#(<= (+ main_offset 752) main_length), 168933#(<= (+ main_offset 748) main_length), 168938#(<= (+ main_offset 728) main_length), 168939#(<= (+ main_offset 724) main_length), 168936#(<= (+ main_offset 736) main_length), 168937#(<= (+ main_offset 732) main_length), 168942#(<= (+ main_offset 712) main_length), 168943#(<= (+ main_offset 708) main_length), 168940#(<= (+ main_offset 720) main_length), 168941#(<= (+ main_offset 716) main_length), 168946#(<= (+ main_offset 696) main_length), 168947#(<= (+ main_offset 692) main_length), 168944#(<= (+ main_offset 704) main_length), 168945#(<= (+ main_offset 700) main_length), 168950#(<= (+ main_offset 680) main_length), 168951#(<= (+ main_offset 676) main_length), 168948#(<= (+ main_offset 688) main_length), 168949#(<= (+ main_offset 684) main_length), 168954#(<= (+ main_offset 664) main_length), 168955#(<= (+ main_offset 660) main_length), 168952#(<= (+ main_offset 672) main_length), 168953#(<= (+ main_offset 668) main_length), 168958#(<= (+ main_offset 648) main_length), 168959#(<= (+ main_offset 644) main_length), 168956#(<= (+ main_offset 656) main_length), 168957#(<= (+ main_offset 652) main_length)] [2018-07-23 13:54:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 36672 backedges. 0 proven. 36672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:18,867 INFO L450 AbstractCegarLoop]: Interpolant automaton has 194 states [2018-07-23 13:54:18,870 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2018-07-23 13:54:18,872 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18721, Invalid=18721, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:54:18,872 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand 194 states. [2018-07-23 13:54:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:19,357 INFO L93 Difference]: Finished difference Result 389 states and 389 transitions. [2018-07-23 13:54:19,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2018-07-23 13:54:19,357 INFO L78 Accepts]: Start accepts. Automaton has 194 states. Word has length 385 [2018-07-23 13:54:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:19,358 INFO L225 Difference]: With dead ends: 389 [2018-07-23 13:54:19,358 INFO L226 Difference]: Without dead ends: 388 [2018-07-23 13:54:19,360 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18721, Invalid=18721, Unknown=0, NotChecked=0, Total=37442 [2018-07-23 13:54:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-07-23 13:54:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2018-07-23 13:54:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2018-07-23 13:54:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 388 transitions. [2018-07-23 13:54:19,366 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 388 transitions. Word has length 385 [2018-07-23 13:54:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:19,366 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 388 transitions. [2018-07-23 13:54:19,366 INFO L472 AbstractCegarLoop]: Interpolant automaton has 194 states. [2018-07-23 13:54:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 388 transitions. [2018-07-23 13:54:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2018-07-23 13:54:19,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:19,368 INFO L357 BasicCegarLoop]: trace histogram [193, 192, 1, 1] [2018-07-23 13:54:19,369 INFO L414 AbstractCegarLoop]: === Iteration 193 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:19,369 INFO L82 PathProgramCache]: Analyzing trace with hash -2086611360, now seen corresponding path program 192 times [2018-07-23 13:54:19,369 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 37056 backedges. 0 proven. 37056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:20,885 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:20,886 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [193] total 193 [2018-07-23 13:54:20,886 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:20,886 INFO L185 omatonBuilderFactory]: Interpolants [170606#(<= (+ main_offset 1048) main_length), 170607#(<= (+ main_offset 1044) main_length), 170604#true, 170605#false, 170610#(<= (+ main_offset 1032) main_length), 170611#(<= (+ main_offset 1028) main_length), 170608#(<= (+ main_offset 1040) main_length), 170609#(<= (+ main_offset 1036) main_length), 170614#(<= (+ main_offset 1016) main_length), 170615#(<= (+ main_offset 1012) main_length), 170612#(<= (+ main_offset 1024) main_length), 170613#(<= (+ main_offset 1020) main_length), 170618#(<= (+ main_offset 1000) main_length), 170619#(<= (+ main_offset 996) main_length), 170616#(<= (+ main_offset 1008) main_length), 170617#(<= (+ main_offset 1004) main_length), 170622#(<= (+ main_offset 984) main_length), 170623#(<= (+ main_offset 980) main_length), 170620#(<= (+ main_offset 992) main_length), 170621#(<= (+ main_offset 988) main_length), 170626#(<= (+ main_offset 968) main_length), 170627#(<= (+ main_offset 964) main_length), 170624#(<= (+ main_offset 976) main_length), 170625#(<= (+ main_offset 972) main_length), 170630#(<= (+ main_offset 952) main_length), 170631#(<= (+ main_offset 948) main_length), 170628#(<= (+ main_offset 960) main_length), 170629#(<= (+ main_offset 956) main_length), 170634#(<= (+ main_offset 936) main_length), 170635#(<= (+ main_offset 932) main_length), 170632#(<= (+ main_offset 944) main_length), 170633#(<= (+ main_offset 940) main_length), 170638#(<= (+ main_offset 920) main_length), 170639#(<= (+ main_offset 916) main_length), 170636#(<= (+ main_offset 928) main_length), 170637#(<= (+ main_offset 924) main_length), 170642#(<= (+ main_offset 904) main_length), 170643#(<= (+ main_offset 900) main_length), 170640#(<= (+ main_offset 912) main_length), 170641#(<= (+ main_offset 908) main_length), 170646#(<= (+ main_offset 888) main_length), 170647#(<= (+ main_offset 884) main_length), 170644#(<= (+ main_offset 896) main_length), 170645#(<= (+ main_offset 892) main_length), 170650#(<= (+ main_offset 872) main_length), 170651#(<= (+ main_offset 868) main_length), 170648#(<= (+ main_offset 880) main_length), 170649#(<= (+ main_offset 876) main_length), 170654#(<= (+ main_offset 856) main_length), 170655#(<= (+ main_offset 852) main_length), 170652#(<= (+ main_offset 864) main_length), 170653#(<= (+ main_offset 860) main_length), 170658#(<= (+ main_offset 840) main_length), 170659#(<= (+ main_offset 836) main_length), 170656#(<= (+ main_offset 848) main_length), 170657#(<= (+ main_offset 844) main_length), 170662#(<= (+ main_offset 824) main_length), 170663#(<= (+ main_offset 820) main_length), 170660#(<= (+ main_offset 832) main_length), 170661#(<= (+ main_offset 828) main_length), 170666#(<= (+ main_offset 808) main_length), 170667#(<= (+ main_offset 804) main_length), 170664#(<= (+ main_offset 816) main_length), 170665#(<= (+ main_offset 812) main_length), 170670#(<= (+ main_offset 792) main_length), 170671#(<= (+ main_offset 788) main_length), 170668#(<= (+ main_offset 800) main_length), 170669#(<= (+ main_offset 796) main_length), 170674#(<= (+ main_offset 776) main_length), 170675#(<= (+ main_offset 772) main_length), 170672#(<= (+ main_offset 784) main_length), 170673#(<= (+ main_offset 780) main_length), 170678#(<= (+ main_offset 760) main_length), 170679#(<= (+ main_offset 756) main_length), 170676#(<= (+ main_offset 768) main_length), 170677#(<= (+ main_offset 764) main_length), 170682#(<= (+ main_offset 744) main_length), 170683#(<= (+ main_offset 740) main_length), 170680#(<= (+ main_offset 752) main_length), 170681#(<= (+ main_offset 748) main_length), 170686#(<= (+ main_offset 728) main_length), 170687#(<= (+ main_offset 724) main_length), 170684#(<= (+ main_offset 736) main_length), 170685#(<= (+ main_offset 732) main_length), 170690#(<= (+ main_offset 712) main_length), 170691#(<= (+ main_offset 708) main_length), 170688#(<= (+ main_offset 720) main_length), 170689#(<= (+ main_offset 716) main_length), 170694#(<= (+ main_offset 696) main_length), 170695#(<= (+ main_offset 692) main_length), 170692#(<= (+ main_offset 704) main_length), 170693#(<= (+ main_offset 700) main_length), 170698#(<= (+ main_offset 680) main_length), 170699#(<= (+ main_offset 676) main_length), 170696#(<= (+ main_offset 688) main_length), 170697#(<= (+ main_offset 684) main_length), 170702#(<= (+ main_offset 664) main_length), 170703#(<= (+ main_offset 660) main_length), 170700#(<= (+ main_offset 672) main_length), 170701#(<= (+ main_offset 668) main_length), 170706#(<= (+ main_offset 648) main_length), 170707#(<= (+ main_offset 644) main_length), 170704#(<= (+ main_offset 656) main_length), 170705#(<= (+ main_offset 652) main_length), 170710#(<= (+ main_offset 632) main_length), 170711#(<= (+ main_offset 628) main_length), 170708#(<= (+ main_offset 640) main_length), 170709#(<= (+ main_offset 636) main_length), 170714#(<= (+ main_offset 616) main_length), 170715#(<= (+ main_offset 612) main_length), 170712#(<= (+ main_offset 624) main_length), 170713#(<= (+ main_offset 620) main_length), 170718#(<= (+ main_offset 600) main_length), 170719#(<= (+ main_offset 596) main_length), 170716#(<= (+ main_offset 608) main_length), 170717#(<= (+ main_offset 604) main_length), 170722#(<= (+ main_offset 584) main_length), 170723#(<= (+ main_offset 580) main_length), 170720#(<= (+ main_offset 592) main_length), 170721#(<= (+ main_offset 588) main_length), 170726#(<= (+ main_offset 568) main_length), 170727#(<= (+ main_offset 564) main_length), 170724#(<= (+ main_offset 576) main_length), 170725#(<= (+ main_offset 572) main_length), 170730#(<= (+ main_offset 552) main_length), 170731#(<= (+ main_offset 548) main_length), 170728#(<= (+ main_offset 560) main_length), 170729#(<= (+ main_offset 556) main_length), 170734#(<= (+ main_offset 536) main_length), 170735#(<= (+ main_offset 532) main_length), 170732#(<= (+ main_offset 544) main_length), 170733#(<= (+ main_offset 540) main_length), 170738#(<= (+ main_offset 520) main_length), 170739#(<= (+ main_offset 516) main_length), 170736#(<= (+ main_offset 528) main_length), 170737#(<= (+ main_offset 524) main_length), 170742#(<= (+ main_offset 504) main_length), 170743#(<= (+ main_offset 500) main_length), 170740#(<= (+ main_offset 512) main_length), 170741#(<= (+ main_offset 508) main_length), 170746#(<= (+ main_offset 488) main_length), 170747#(<= (+ main_offset 484) main_length), 170744#(<= (+ main_offset 496) main_length), 170745#(<= (+ main_offset 492) main_length), 170750#(<= (+ main_offset 472) main_length), 170751#(<= (+ main_offset 468) main_length), 170748#(<= (+ main_offset 480) main_length), 170749#(<= (+ main_offset 476) main_length), 170754#(<= (+ main_offset 456) main_length), 170755#(<= (+ main_offset 452) main_length), 170752#(<= (+ main_offset 464) main_length), 170753#(<= (+ main_offset 460) main_length), 170758#(<= (+ main_offset 440) main_length), 170759#(<= (+ main_offset 436) main_length), 170756#(<= (+ main_offset 448) main_length), 170757#(<= (+ main_offset 444) main_length), 170762#(<= (+ main_offset 424) main_length), 170763#(<= (+ main_offset 420) main_length), 170760#(<= (+ main_offset 432) main_length), 170761#(<= (+ main_offset 428) main_length), 170766#(<= (+ main_offset 408) main_length), 170767#(<= (+ main_offset 404) main_length), 170764#(<= (+ main_offset 416) main_length), 170765#(<= (+ main_offset 412) main_length), 170770#(<= (+ main_offset 392) main_length), 170771#(<= (+ main_offset 388) main_length), 170768#(<= (+ main_offset 400) main_length), 170769#(<= (+ main_offset 396) main_length), 170774#(<= (+ main_offset 376) main_length), 170775#(<= (+ main_offset 372) main_length), 170772#(<= (+ main_offset 384) main_length), 170773#(<= (+ main_offset 380) main_length), 170778#(<= (+ main_offset 360) main_length), 170779#(<= (+ main_offset 356) main_length), 170776#(<= (+ main_offset 368) main_length), 170777#(<= (+ main_offset 364) main_length), 170782#(<= (+ main_offset 344) main_length), 170783#(<= (+ main_offset 340) main_length), 170780#(<= (+ main_offset 352) main_length), 170781#(<= (+ main_offset 348) main_length), 170786#(<= (+ main_offset 328) main_length), 170787#(<= (+ main_offset 324) main_length), 170784#(<= (+ main_offset 336) main_length), 170785#(<= (+ main_offset 332) main_length), 170790#(<= (+ main_offset 312) main_length), 170791#(<= (+ main_offset 308) main_length), 170788#(<= (+ main_offset 320) main_length), 170789#(<= (+ main_offset 316) main_length), 170794#(<= (+ main_offset 296) main_length), 170795#(<= (+ main_offset 292) main_length), 170792#(<= (+ main_offset 304) main_length), 170793#(<= (+ main_offset 300) main_length), 170798#(<= (+ main_offset 280) main_length), 170796#(<= (+ main_offset 288) main_length), 170797#(<= (+ main_offset 284) main_length)] [2018-07-23 13:54:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 37056 backedges. 0 proven. 37056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:20,888 INFO L450 AbstractCegarLoop]: Interpolant automaton has 195 states [2018-07-23 13:54:20,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 195 interpolants. [2018-07-23 13:54:20,892 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18915, Invalid=18915, Unknown=0, NotChecked=0, Total=37830 [2018-07-23 13:54:20,892 INFO L87 Difference]: Start difference. First operand 388 states and 388 transitions. Second operand 195 states. [2018-07-23 13:54:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:21,693 INFO L93 Difference]: Finished difference Result 391 states and 391 transitions. [2018-07-23 13:54:21,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2018-07-23 13:54:21,693 INFO L78 Accepts]: Start accepts. Automaton has 195 states. Word has length 387 [2018-07-23 13:54:21,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:21,694 INFO L225 Difference]: With dead ends: 391 [2018-07-23 13:54:21,694 INFO L226 Difference]: Without dead ends: 390 [2018-07-23 13:54:21,695 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18915, Invalid=18915, Unknown=0, NotChecked=0, Total=37830 [2018-07-23 13:54:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-07-23 13:54:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2018-07-23 13:54:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2018-07-23 13:54:21,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 390 transitions. [2018-07-23 13:54:21,700 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 390 transitions. Word has length 387 [2018-07-23 13:54:21,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:21,700 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 390 transitions. [2018-07-23 13:54:21,700 INFO L472 AbstractCegarLoop]: Interpolant automaton has 195 states. [2018-07-23 13:54:21,700 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 390 transitions. [2018-07-23 13:54:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-07-23 13:54:21,701 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:21,702 INFO L357 BasicCegarLoop]: trace histogram [194, 193, 1, 1] [2018-07-23 13:54:21,702 INFO L414 AbstractCegarLoop]: === Iteration 194 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:21,702 INFO L82 PathProgramCache]: Analyzing trace with hash 516211362, now seen corresponding path program 193 times [2018-07-23 13:54:21,702 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 37442 backedges. 0 proven. 37442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,171 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:23,171 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [194] total 194 [2018-07-23 13:54:23,171 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:23,171 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 13:54:23,172 INFO L185 omatonBuilderFactory]: Interpolants [172546#(<= (+ main_offset 316) main_length), 172547#(<= (+ main_offset 312) main_length), 172544#(<= (+ main_offset 324) main_length), 172545#(<= (+ main_offset 320) main_length), 172550#(<= (+ main_offset 300) main_length), 172551#(<= (+ main_offset 296) main_length), 172548#(<= (+ main_offset 308) main_length), 172549#(<= (+ main_offset 304) main_length), 172554#(<= (+ main_offset 284) main_length), 172555#(<= (+ main_offset 280) main_length), 172552#(<= (+ main_offset 292) main_length), 172553#(<= (+ main_offset 288) main_length), 172556#(<= (+ main_offset 276) main_length), 172362#false, 172363#(<= (+ main_offset 1048) main_length), 172361#true, 172366#(<= (+ main_offset 1036) main_length), 172367#(<= (+ main_offset 1032) main_length), 172364#(<= (+ main_offset 1044) main_length), 172365#(<= (+ main_offset 1040) main_length), 172370#(<= (+ main_offset 1020) main_length), 172371#(<= (+ main_offset 1016) main_length), 172368#(<= (+ main_offset 1028) main_length), 172369#(<= (+ main_offset 1024) main_length), 172374#(<= (+ main_offset 1004) main_length), 172375#(<= (+ main_offset 1000) main_length), 172372#(<= (+ main_offset 1012) main_length), 172373#(<= (+ main_offset 1008) main_length), 172378#(<= (+ main_offset 988) main_length), 172379#(<= (+ main_offset 984) main_length), 172376#(<= (+ main_offset 996) main_length), 172377#(<= (+ main_offset 992) main_length), 172382#(<= (+ main_offset 972) main_length), 172383#(<= (+ main_offset 968) main_length), 172380#(<= (+ main_offset 980) main_length), 172381#(<= (+ main_offset 976) main_length), 172386#(<= (+ main_offset 956) main_length), 172387#(<= (+ main_offset 952) main_length), 172384#(<= (+ main_offset 964) main_length), 172385#(<= (+ main_offset 960) main_length), 172390#(<= (+ main_offset 940) main_length), 172391#(<= (+ main_offset 936) main_length), 172388#(<= (+ main_offset 948) main_length), 172389#(<= (+ main_offset 944) main_length), 172394#(<= (+ main_offset 924) main_length), 172395#(<= (+ main_offset 920) main_length), 172392#(<= (+ main_offset 932) main_length), 172393#(<= (+ main_offset 928) main_length), 172398#(<= (+ main_offset 908) main_length), 172399#(<= (+ main_offset 904) main_length), 172396#(<= (+ main_offset 916) main_length), 172397#(<= (+ main_offset 912) main_length), 172402#(<= (+ main_offset 892) main_length), 172403#(<= (+ main_offset 888) main_length), 172400#(<= (+ main_offset 900) main_length), 172401#(<= (+ main_offset 896) main_length), 172406#(<= (+ main_offset 876) main_length), 172407#(<= (+ main_offset 872) main_length), 172404#(<= (+ main_offset 884) main_length), 172405#(<= (+ main_offset 880) main_length), 172410#(<= (+ main_offset 860) main_length), 172411#(<= (+ main_offset 856) main_length), 172408#(<= (+ main_offset 868) main_length), 172409#(<= (+ main_offset 864) main_length), 172414#(<= (+ main_offset 844) main_length), 172415#(<= (+ main_offset 840) main_length), 172412#(<= (+ main_offset 852) main_length), 172413#(<= (+ main_offset 848) main_length), 172418#(<= (+ main_offset 828) main_length), 172419#(<= (+ main_offset 824) main_length), 172416#(<= (+ main_offset 836) main_length), 172417#(<= (+ main_offset 832) main_length), 172422#(<= (+ main_offset 812) main_length), 172423#(<= (+ main_offset 808) main_length), 172420#(<= (+ main_offset 820) main_length), 172421#(<= (+ main_offset 816) main_length), 172426#(<= (+ main_offset 796) main_length), 172427#(<= (+ main_offset 792) main_length), 172424#(<= (+ main_offset 804) main_length), 172425#(<= (+ main_offset 800) main_length), 172430#(<= (+ main_offset 780) main_length), 172431#(<= (+ main_offset 776) main_length), 172428#(<= (+ main_offset 788) main_length), 172429#(<= (+ main_offset 784) main_length), 172434#(<= (+ main_offset 764) main_length), 172435#(<= (+ main_offset 760) main_length), 172432#(<= (+ main_offset 772) main_length), 172433#(<= (+ main_offset 768) main_length), 172438#(<= (+ main_offset 748) main_length), 172439#(<= (+ main_offset 744) main_length), 172436#(<= (+ main_offset 756) main_length), 172437#(<= (+ main_offset 752) main_length), 172442#(<= (+ main_offset 732) main_length), 172443#(<= (+ main_offset 728) main_length), 172440#(<= (+ main_offset 740) main_length), 172441#(<= (+ main_offset 736) main_length), 172446#(<= (+ main_offset 716) main_length), 172447#(<= (+ main_offset 712) main_length), 172444#(<= (+ main_offset 724) main_length), 172445#(<= (+ main_offset 720) main_length), 172450#(<= (+ main_offset 700) main_length), 172451#(<= (+ main_offset 696) main_length), 172448#(<= (+ main_offset 708) main_length), 172449#(<= (+ main_offset 704) main_length), 172454#(<= (+ main_offset 684) main_length), 172455#(<= (+ main_offset 680) main_length), 172452#(<= (+ main_offset 692) main_length), 172453#(<= (+ main_offset 688) main_length), 172458#(<= (+ main_offset 668) main_length), 172459#(<= (+ main_offset 664) main_length), 172456#(<= (+ main_offset 676) main_length), 172457#(<= (+ main_offset 672) main_length), 172462#(<= (+ main_offset 652) main_length), 172463#(<= (+ main_offset 648) main_length), 172460#(<= (+ main_offset 660) main_length), 172461#(<= (+ main_offset 656) main_length), 172466#(<= (+ main_offset 636) main_length), 172467#(<= (+ main_offset 632) main_length), 172464#(<= (+ main_offset 644) main_length), 172465#(<= (+ main_offset 640) main_length), 172470#(<= (+ main_offset 620) main_length), 172471#(<= (+ main_offset 616) main_length), 172468#(<= (+ main_offset 628) main_length), 172469#(<= (+ main_offset 624) main_length), 172474#(<= (+ main_offset 604) main_length), 172475#(<= (+ main_offset 600) main_length), 172472#(<= (+ main_offset 612) main_length), 172473#(<= (+ main_offset 608) main_length), 172478#(<= (+ main_offset 588) main_length), 172479#(<= (+ main_offset 584) main_length), 172476#(<= (+ main_offset 596) main_length), 172477#(<= (+ main_offset 592) main_length), 172482#(<= (+ main_offset 572) main_length), 172483#(<= (+ main_offset 568) main_length), 172480#(<= (+ main_offset 580) main_length), 172481#(<= (+ main_offset 576) main_length), 172486#(<= (+ main_offset 556) main_length), 172487#(<= (+ main_offset 552) main_length), 172484#(<= (+ main_offset 564) main_length), 172485#(<= (+ main_offset 560) main_length), 172490#(<= (+ main_offset 540) main_length), 172491#(<= (+ main_offset 536) main_length), 172488#(<= (+ main_offset 548) main_length), 172489#(<= (+ main_offset 544) main_length), 172494#(<= (+ main_offset 524) main_length), 172495#(<= (+ main_offset 520) main_length), 172492#(<= (+ main_offset 532) main_length), 172493#(<= (+ main_offset 528) main_length), 172498#(<= (+ main_offset 508) main_length), 172499#(<= (+ main_offset 504) main_length), 172496#(<= (+ main_offset 516) main_length), 172497#(<= (+ main_offset 512) main_length), 172502#(<= (+ main_offset 492) main_length), 172503#(<= (+ main_offset 488) main_length), 172500#(<= (+ main_offset 500) main_length), 172501#(<= (+ main_offset 496) main_length), 172506#(<= (+ main_offset 476) main_length), 172507#(<= (+ main_offset 472) main_length), 172504#(<= (+ main_offset 484) main_length), 172505#(<= (+ main_offset 480) main_length), 172510#(<= (+ main_offset 460) main_length), 172511#(<= (+ main_offset 456) main_length), 172508#(<= (+ main_offset 468) main_length), 172509#(<= (+ main_offset 464) main_length), 172514#(<= (+ main_offset 444) main_length), 172515#(<= (+ main_offset 440) main_length), 172512#(<= (+ main_offset 452) main_length), 172513#(<= (+ main_offset 448) main_length), 172518#(<= (+ main_offset 428) main_length), 172519#(<= (+ main_offset 424) main_length), 172516#(<= (+ main_offset 436) main_length), 172517#(<= (+ main_offset 432) main_length), 172522#(<= (+ main_offset 412) main_length), 172523#(<= (+ main_offset 408) main_length), 172520#(<= (+ main_offset 420) main_length), 172521#(<= (+ main_offset 416) main_length), 172526#(<= (+ main_offset 396) main_length), 172527#(<= (+ main_offset 392) main_length), 172524#(<= (+ main_offset 404) main_length), 172525#(<= (+ main_offset 400) main_length), 172530#(<= (+ main_offset 380) main_length), 172531#(<= (+ main_offset 376) main_length), 172528#(<= (+ main_offset 388) main_length), 172529#(<= (+ main_offset 384) main_length), 172534#(<= (+ main_offset 364) main_length), 172535#(<= (+ main_offset 360) main_length), 172532#(<= (+ main_offset 372) main_length), 172533#(<= (+ main_offset 368) main_length), 172538#(<= (+ main_offset 348) main_length), 172539#(<= (+ main_offset 344) main_length), 172536#(<= (+ main_offset 356) main_length), 172537#(<= (+ main_offset 352) main_length), 172542#(<= (+ main_offset 332) main_length), 172543#(<= (+ main_offset 328) main_length), 172540#(<= (+ main_offset 340) main_length), 172541#(<= (+ main_offset 336) main_length)] [2018-07-23 13:54:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 37442 backedges. 0 proven. 37442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:23,174 INFO L450 AbstractCegarLoop]: Interpolant automaton has 196 states [2018-07-23 13:54:23,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2018-07-23 13:54:23,178 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19110, Invalid=19110, Unknown=0, NotChecked=0, Total=38220 [2018-07-23 13:54:23,178 INFO L87 Difference]: Start difference. First operand 390 states and 390 transitions. Second operand 196 states. [2018-07-23 13:54:24,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:24,586 INFO L93 Difference]: Finished difference Result 393 states and 393 transitions. [2018-07-23 13:54:24,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2018-07-23 13:54:24,586 INFO L78 Accepts]: Start accepts. Automaton has 196 states. Word has length 389 [2018-07-23 13:54:24,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:24,587 INFO L225 Difference]: With dead ends: 393 [2018-07-23 13:54:24,587 INFO L226 Difference]: Without dead ends: 392 [2018-07-23 13:54:24,589 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=19110, Invalid=19110, Unknown=0, NotChecked=0, Total=38220 [2018-07-23 13:54:24,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2018-07-23 13:54:24,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2018-07-23 13:54:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2018-07-23 13:54:24,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 392 transitions. [2018-07-23 13:54:24,594 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 392 transitions. Word has length 389 [2018-07-23 13:54:24,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:24,594 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 392 transitions. [2018-07-23 13:54:24,594 INFO L472 AbstractCegarLoop]: Interpolant automaton has 196 states. [2018-07-23 13:54:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 392 transitions. [2018-07-23 13:54:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2018-07-23 13:54:24,595 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:24,595 INFO L357 BasicCegarLoop]: trace histogram [195, 194, 1, 1] [2018-07-23 13:54:24,596 INFO L414 AbstractCegarLoop]: === Iteration 195 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:24,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2137086364, now seen corresponding path program 194 times [2018-07-23 13:54:24,596 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:26,127 INFO L134 CoverageAnalysis]: Checked inductivity of 37830 backedges. 0 proven. 37830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,127 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:26,128 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [195] total 195 [2018-07-23 13:54:26,128 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,128 INFO L185 omatonBuilderFactory]: Interpolants [174127#true, 174130#(<= (+ main_offset 1044) main_length), 174131#(<= (+ main_offset 1040) main_length), 174128#false, 174129#(<= (+ main_offset 1048) main_length), 174134#(<= (+ main_offset 1028) main_length), 174135#(<= (+ main_offset 1024) main_length), 174132#(<= (+ main_offset 1036) main_length), 174133#(<= (+ main_offset 1032) main_length), 174138#(<= (+ main_offset 1012) main_length), 174139#(<= (+ main_offset 1008) main_length), 174136#(<= (+ main_offset 1020) main_length), 174137#(<= (+ main_offset 1016) main_length), 174142#(<= (+ main_offset 996) main_length), 174143#(<= (+ main_offset 992) main_length), 174140#(<= (+ main_offset 1004) main_length), 174141#(<= (+ main_offset 1000) main_length), 174146#(<= (+ main_offset 980) main_length), 174147#(<= (+ main_offset 976) main_length), 174144#(<= (+ main_offset 988) main_length), 174145#(<= (+ main_offset 984) main_length), 174150#(<= (+ main_offset 964) main_length), 174151#(<= (+ main_offset 960) main_length), 174148#(<= (+ main_offset 972) main_length), 174149#(<= (+ main_offset 968) main_length), 174154#(<= (+ main_offset 948) main_length), 174155#(<= (+ main_offset 944) main_length), 174152#(<= (+ main_offset 956) main_length), 174153#(<= (+ main_offset 952) main_length), 174158#(<= (+ main_offset 932) main_length), 174159#(<= (+ main_offset 928) main_length), 174156#(<= (+ main_offset 940) main_length), 174157#(<= (+ main_offset 936) main_length), 174162#(<= (+ main_offset 916) main_length), 174163#(<= (+ main_offset 912) main_length), 174160#(<= (+ main_offset 924) main_length), 174161#(<= (+ main_offset 920) main_length), 174166#(<= (+ main_offset 900) main_length), 174167#(<= (+ main_offset 896) main_length), 174164#(<= (+ main_offset 908) main_length), 174165#(<= (+ main_offset 904) main_length), 174170#(<= (+ main_offset 884) main_length), 174171#(<= (+ main_offset 880) main_length), 174168#(<= (+ main_offset 892) main_length), 174169#(<= (+ main_offset 888) main_length), 174174#(<= (+ main_offset 868) main_length), 174175#(<= (+ main_offset 864) main_length), 174172#(<= (+ main_offset 876) main_length), 174173#(<= (+ main_offset 872) main_length), 174178#(<= (+ main_offset 852) main_length), 174179#(<= (+ main_offset 848) main_length), 174176#(<= (+ main_offset 860) main_length), 174177#(<= (+ main_offset 856) main_length), 174182#(<= (+ main_offset 836) main_length), 174183#(<= (+ main_offset 832) main_length), 174180#(<= (+ main_offset 844) main_length), 174181#(<= (+ main_offset 840) main_length), 174186#(<= (+ main_offset 820) main_length), 174187#(<= (+ main_offset 816) main_length), 174184#(<= (+ main_offset 828) main_length), 174185#(<= (+ main_offset 824) main_length), 174190#(<= (+ main_offset 804) main_length), 174191#(<= (+ main_offset 800) main_length), 174188#(<= (+ main_offset 812) main_length), 174189#(<= (+ main_offset 808) main_length), 174194#(<= (+ main_offset 788) main_length), 174195#(<= (+ main_offset 784) main_length), 174192#(<= (+ main_offset 796) main_length), 174193#(<= (+ main_offset 792) main_length), 174198#(<= (+ main_offset 772) main_length), 174199#(<= (+ main_offset 768) main_length), 174196#(<= (+ main_offset 780) main_length), 174197#(<= (+ main_offset 776) main_length), 174202#(<= (+ main_offset 756) main_length), 174203#(<= (+ main_offset 752) main_length), 174200#(<= (+ main_offset 764) main_length), 174201#(<= (+ main_offset 760) main_length), 174206#(<= (+ main_offset 740) main_length), 174207#(<= (+ main_offset 736) main_length), 174204#(<= (+ main_offset 748) main_length), 174205#(<= (+ main_offset 744) main_length), 174210#(<= (+ main_offset 724) main_length), 174211#(<= (+ main_offset 720) main_length), 174208#(<= (+ main_offset 732) main_length), 174209#(<= (+ main_offset 728) main_length), 174214#(<= (+ main_offset 708) main_length), 174215#(<= (+ main_offset 704) main_length), 174212#(<= (+ main_offset 716) main_length), 174213#(<= (+ main_offset 712) main_length), 174218#(<= (+ main_offset 692) main_length), 174219#(<= (+ main_offset 688) main_length), 174216#(<= (+ main_offset 700) main_length), 174217#(<= (+ main_offset 696) main_length), 174222#(<= (+ main_offset 676) main_length), 174223#(<= (+ main_offset 672) main_length), 174220#(<= (+ main_offset 684) main_length), 174221#(<= (+ main_offset 680) main_length), 174226#(<= (+ main_offset 660) main_length), 174227#(<= (+ main_offset 656) main_length), 174224#(<= (+ main_offset 668) main_length), 174225#(<= (+ main_offset 664) main_length), 174230#(<= (+ main_offset 644) main_length), 174231#(<= (+ main_offset 640) main_length), 174228#(<= (+ main_offset 652) main_length), 174229#(<= (+ main_offset 648) main_length), 174234#(<= (+ main_offset 628) main_length), 174235#(<= (+ main_offset 624) main_length), 174232#(<= (+ main_offset 636) main_length), 174233#(<= (+ main_offset 632) main_length), 174238#(<= (+ main_offset 612) main_length), 174239#(<= (+ main_offset 608) main_length), 174236#(<= (+ main_offset 620) main_length), 174237#(<= (+ main_offset 616) main_length), 174242#(<= (+ main_offset 596) main_length), 174243#(<= (+ main_offset 592) main_length), 174240#(<= (+ main_offset 604) main_length), 174241#(<= (+ main_offset 600) main_length), 174246#(<= (+ main_offset 580) main_length), 174247#(<= (+ main_offset 576) main_length), 174244#(<= (+ main_offset 588) main_length), 174245#(<= (+ main_offset 584) main_length), 174250#(<= (+ main_offset 564) main_length), 174251#(<= (+ main_offset 560) main_length), 174248#(<= (+ main_offset 572) main_length), 174249#(<= (+ main_offset 568) main_length), 174254#(<= (+ main_offset 548) main_length), 174255#(<= (+ main_offset 544) main_length), 174252#(<= (+ main_offset 556) main_length), 174253#(<= (+ main_offset 552) main_length), 174258#(<= (+ main_offset 532) main_length), 174259#(<= (+ main_offset 528) main_length), 174256#(<= (+ main_offset 540) main_length), 174257#(<= (+ main_offset 536) main_length), 174262#(<= (+ main_offset 516) main_length), 174263#(<= (+ main_offset 512) main_length), 174260#(<= (+ main_offset 524) main_length), 174261#(<= (+ main_offset 520) main_length), 174266#(<= (+ main_offset 500) main_length), 174267#(<= (+ main_offset 496) main_length), 174264#(<= (+ main_offset 508) main_length), 174265#(<= (+ main_offset 504) main_length), 174270#(<= (+ main_offset 484) main_length), 174271#(<= (+ main_offset 480) main_length), 174268#(<= (+ main_offset 492) main_length), 174269#(<= (+ main_offset 488) main_length), 174274#(<= (+ main_offset 468) main_length), 174275#(<= (+ main_offset 464) main_length), 174272#(<= (+ main_offset 476) main_length), 174273#(<= (+ main_offset 472) main_length), 174278#(<= (+ main_offset 452) main_length), 174279#(<= (+ main_offset 448) main_length), 174276#(<= (+ main_offset 460) main_length), 174277#(<= (+ main_offset 456) main_length), 174282#(<= (+ main_offset 436) main_length), 174283#(<= (+ main_offset 432) main_length), 174280#(<= (+ main_offset 444) main_length), 174281#(<= (+ main_offset 440) main_length), 174286#(<= (+ main_offset 420) main_length), 174287#(<= (+ main_offset 416) main_length), 174284#(<= (+ main_offset 428) main_length), 174285#(<= (+ main_offset 424) main_length), 174290#(<= (+ main_offset 404) main_length), 174291#(<= (+ main_offset 400) main_length), 174288#(<= (+ main_offset 412) main_length), 174289#(<= (+ main_offset 408) main_length), 174294#(<= (+ main_offset 388) main_length), 174295#(<= (+ main_offset 384) main_length), 174292#(<= (+ main_offset 396) main_length), 174293#(<= (+ main_offset 392) main_length), 174298#(<= (+ main_offset 372) main_length), 174299#(<= (+ main_offset 368) main_length), 174296#(<= (+ main_offset 380) main_length), 174297#(<= (+ main_offset 376) main_length), 174302#(<= (+ main_offset 356) main_length), 174303#(<= (+ main_offset 352) main_length), 174300#(<= (+ main_offset 364) main_length), 174301#(<= (+ main_offset 360) main_length), 174306#(<= (+ main_offset 340) main_length), 174307#(<= (+ main_offset 336) main_length), 174304#(<= (+ main_offset 348) main_length), 174305#(<= (+ main_offset 344) main_length), 174310#(<= (+ main_offset 324) main_length), 174311#(<= (+ main_offset 320) main_length), 174308#(<= (+ main_offset 332) main_length), 174309#(<= (+ main_offset 328) main_length), 174314#(<= (+ main_offset 308) main_length), 174315#(<= (+ main_offset 304) main_length), 174312#(<= (+ main_offset 316) main_length), 174313#(<= (+ main_offset 312) main_length), 174318#(<= (+ main_offset 292) main_length), 174319#(<= (+ main_offset 288) main_length), 174316#(<= (+ main_offset 300) main_length), 174317#(<= (+ main_offset 296) main_length), 174322#(<= (+ main_offset 276) main_length), 174323#(<= (+ main_offset 272) main_length), 174320#(<= (+ main_offset 284) main_length), 174321#(<= (+ main_offset 280) main_length)] [2018-07-23 13:54:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 37830 backedges. 0 proven. 37830 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:26,130 INFO L450 AbstractCegarLoop]: Interpolant automaton has 197 states [2018-07-23 13:54:26,133 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 197 interpolants. [2018-07-23 13:54:26,134 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:54:26,134 INFO L87 Difference]: Start difference. First operand 392 states and 392 transitions. Second operand 197 states. [2018-07-23 13:54:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:27,970 INFO L93 Difference]: Finished difference Result 395 states and 395 transitions. [2018-07-23 13:54:27,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2018-07-23 13:54:27,970 INFO L78 Accepts]: Start accepts. Automaton has 197 states. Word has length 391 [2018-07-23 13:54:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:27,970 INFO L225 Difference]: With dead ends: 395 [2018-07-23 13:54:27,971 INFO L226 Difference]: Without dead ends: 394 [2018-07-23 13:54:27,972 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 195 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19306, Invalid=19306, Unknown=0, NotChecked=0, Total=38612 [2018-07-23 13:54:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-07-23 13:54:27,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2018-07-23 13:54:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2018-07-23 13:54:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 394 transitions. [2018-07-23 13:54:27,977 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 394 transitions. Word has length 391 [2018-07-23 13:54:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:27,977 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 394 transitions. [2018-07-23 13:54:27,977 INFO L472 AbstractCegarLoop]: Interpolant automaton has 197 states. [2018-07-23 13:54:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 394 transitions. [2018-07-23 13:54:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-07-23 13:54:27,978 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:27,979 INFO L357 BasicCegarLoop]: trace histogram [196, 195, 1, 1] [2018-07-23 13:54:27,979 INFO L414 AbstractCegarLoop]: === Iteration 196 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:27,979 INFO L82 PathProgramCache]: Analyzing trace with hash -745627226, now seen corresponding path program 195 times [2018-07-23 13:54:27,979 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 38220 backedges. 0 proven. 38220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:29,535 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:29,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [196] total 196 [2018-07-23 13:54:29,535 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:29,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:29,536 INFO L185 omatonBuilderFactory]: Interpolants [175902#true, 175903#false, 175906#(<= (+ main_offset 1040) main_length), 175907#(<= (+ main_offset 1036) main_length), 175904#(<= (+ main_offset 1048) main_length), 175905#(<= (+ main_offset 1044) main_length), 175910#(<= (+ main_offset 1024) main_length), 175911#(<= (+ main_offset 1020) main_length), 175908#(<= (+ main_offset 1032) main_length), 175909#(<= (+ main_offset 1028) main_length), 175914#(<= (+ main_offset 1008) main_length), 175915#(<= (+ main_offset 1004) main_length), 175912#(<= (+ main_offset 1016) main_length), 175913#(<= (+ main_offset 1012) main_length), 175918#(<= (+ main_offset 992) main_length), 175919#(<= (+ main_offset 988) main_length), 175916#(<= (+ main_offset 1000) main_length), 175917#(<= (+ main_offset 996) main_length), 175922#(<= (+ main_offset 976) main_length), 175923#(<= (+ main_offset 972) main_length), 175920#(<= (+ main_offset 984) main_length), 175921#(<= (+ main_offset 980) main_length), 175926#(<= (+ main_offset 960) main_length), 175927#(<= (+ main_offset 956) main_length), 175924#(<= (+ main_offset 968) main_length), 175925#(<= (+ main_offset 964) main_length), 175930#(<= (+ main_offset 944) main_length), 175931#(<= (+ main_offset 940) main_length), 175928#(<= (+ main_offset 952) main_length), 175929#(<= (+ main_offset 948) main_length), 175934#(<= (+ main_offset 928) main_length), 175935#(<= (+ main_offset 924) main_length), 175932#(<= (+ main_offset 936) main_length), 175933#(<= (+ main_offset 932) main_length), 175938#(<= (+ main_offset 912) main_length), 175939#(<= (+ main_offset 908) main_length), 175936#(<= (+ main_offset 920) main_length), 175937#(<= (+ main_offset 916) main_length), 175942#(<= (+ main_offset 896) main_length), 175943#(<= (+ main_offset 892) main_length), 175940#(<= (+ main_offset 904) main_length), 175941#(<= (+ main_offset 900) main_length), 175946#(<= (+ main_offset 880) main_length), 175947#(<= (+ main_offset 876) main_length), 175944#(<= (+ main_offset 888) main_length), 175945#(<= (+ main_offset 884) main_length), 175950#(<= (+ main_offset 864) main_length), 175951#(<= (+ main_offset 860) main_length), 175948#(<= (+ main_offset 872) main_length), 175949#(<= (+ main_offset 868) main_length), 175954#(<= (+ main_offset 848) main_length), 175955#(<= (+ main_offset 844) main_length), 175952#(<= (+ main_offset 856) main_length), 175953#(<= (+ main_offset 852) main_length), 175958#(<= (+ main_offset 832) main_length), 175959#(<= (+ main_offset 828) main_length), 175956#(<= (+ main_offset 840) main_length), 175957#(<= (+ main_offset 836) main_length), 175962#(<= (+ main_offset 816) main_length), 175963#(<= (+ main_offset 812) main_length), 175960#(<= (+ main_offset 824) main_length), 175961#(<= (+ main_offset 820) main_length), 175966#(<= (+ main_offset 800) main_length), 175967#(<= (+ main_offset 796) main_length), 175964#(<= (+ main_offset 808) main_length), 175965#(<= (+ main_offset 804) main_length), 175970#(<= (+ main_offset 784) main_length), 175971#(<= (+ main_offset 780) main_length), 175968#(<= (+ main_offset 792) main_length), 175969#(<= (+ main_offset 788) main_length), 175974#(<= (+ main_offset 768) main_length), 175975#(<= (+ main_offset 764) main_length), 175972#(<= (+ main_offset 776) main_length), 175973#(<= (+ main_offset 772) main_length), 175978#(<= (+ main_offset 752) main_length), 175979#(<= (+ main_offset 748) main_length), 175976#(<= (+ main_offset 760) main_length), 175977#(<= (+ main_offset 756) main_length), 175982#(<= (+ main_offset 736) main_length), 175983#(<= (+ main_offset 732) main_length), 175980#(<= (+ main_offset 744) main_length), 175981#(<= (+ main_offset 740) main_length), 175986#(<= (+ main_offset 720) main_length), 175987#(<= (+ main_offset 716) main_length), 175984#(<= (+ main_offset 728) main_length), 175985#(<= (+ main_offset 724) main_length), 175990#(<= (+ main_offset 704) main_length), 175991#(<= (+ main_offset 700) main_length), 175988#(<= (+ main_offset 712) main_length), 175989#(<= (+ main_offset 708) main_length), 175994#(<= (+ main_offset 688) main_length), 175995#(<= (+ main_offset 684) main_length), 175992#(<= (+ main_offset 696) main_length), 175993#(<= (+ main_offset 692) main_length), 175998#(<= (+ main_offset 672) main_length), 175999#(<= (+ main_offset 668) main_length), 175996#(<= (+ main_offset 680) main_length), 175997#(<= (+ main_offset 676) main_length), 176002#(<= (+ main_offset 656) main_length), 176003#(<= (+ main_offset 652) main_length), 176000#(<= (+ main_offset 664) main_length), 176001#(<= (+ main_offset 660) main_length), 176006#(<= (+ main_offset 640) main_length), 176007#(<= (+ main_offset 636) main_length), 176004#(<= (+ main_offset 648) main_length), 176005#(<= (+ main_offset 644) main_length), 176010#(<= (+ main_offset 624) main_length), 176011#(<= (+ main_offset 620) main_length), 176008#(<= (+ main_offset 632) main_length), 176009#(<= (+ main_offset 628) main_length), 176014#(<= (+ main_offset 608) main_length), 176015#(<= (+ main_offset 604) main_length), 176012#(<= (+ main_offset 616) main_length), 176013#(<= (+ main_offset 612) main_length), 176018#(<= (+ main_offset 592) main_length), 176019#(<= (+ main_offset 588) main_length), 176016#(<= (+ main_offset 600) main_length), 176017#(<= (+ main_offset 596) main_length), 176022#(<= (+ main_offset 576) main_length), 176023#(<= (+ main_offset 572) main_length), 176020#(<= (+ main_offset 584) main_length), 176021#(<= (+ main_offset 580) main_length), 176026#(<= (+ main_offset 560) main_length), 176027#(<= (+ main_offset 556) main_length), 176024#(<= (+ main_offset 568) main_length), 176025#(<= (+ main_offset 564) main_length), 176030#(<= (+ main_offset 544) main_length), 176031#(<= (+ main_offset 540) main_length), 176028#(<= (+ main_offset 552) main_length), 176029#(<= (+ main_offset 548) main_length), 176034#(<= (+ main_offset 528) main_length), 176035#(<= (+ main_offset 524) main_length), 176032#(<= (+ main_offset 536) main_length), 176033#(<= (+ main_offset 532) main_length), 176038#(<= (+ main_offset 512) main_length), 176039#(<= (+ main_offset 508) main_length), 176036#(<= (+ main_offset 520) main_length), 176037#(<= (+ main_offset 516) main_length), 176042#(<= (+ main_offset 496) main_length), 176043#(<= (+ main_offset 492) main_length), 176040#(<= (+ main_offset 504) main_length), 176041#(<= (+ main_offset 500) main_length), 176046#(<= (+ main_offset 480) main_length), 176047#(<= (+ main_offset 476) main_length), 176044#(<= (+ main_offset 488) main_length), 176045#(<= (+ main_offset 484) main_length), 176050#(<= (+ main_offset 464) main_length), 176051#(<= (+ main_offset 460) main_length), 176048#(<= (+ main_offset 472) main_length), 176049#(<= (+ main_offset 468) main_length), 176054#(<= (+ main_offset 448) main_length), 176055#(<= (+ main_offset 444) main_length), 176052#(<= (+ main_offset 456) main_length), 176053#(<= (+ main_offset 452) main_length), 176058#(<= (+ main_offset 432) main_length), 176059#(<= (+ main_offset 428) main_length), 176056#(<= (+ main_offset 440) main_length), 176057#(<= (+ main_offset 436) main_length), 176062#(<= (+ main_offset 416) main_length), 176063#(<= (+ main_offset 412) main_length), 176060#(<= (+ main_offset 424) main_length), 176061#(<= (+ main_offset 420) main_length), 176066#(<= (+ main_offset 400) main_length), 176067#(<= (+ main_offset 396) main_length), 176064#(<= (+ main_offset 408) main_length), 176065#(<= (+ main_offset 404) main_length), 176070#(<= (+ main_offset 384) main_length), 176071#(<= (+ main_offset 380) main_length), 176068#(<= (+ main_offset 392) main_length), 176069#(<= (+ main_offset 388) main_length), 176074#(<= (+ main_offset 368) main_length), 176075#(<= (+ main_offset 364) main_length), 176072#(<= (+ main_offset 376) main_length), 176073#(<= (+ main_offset 372) main_length), 176078#(<= (+ main_offset 352) main_length), 176079#(<= (+ main_offset 348) main_length), 176076#(<= (+ main_offset 360) main_length), 176077#(<= (+ main_offset 356) main_length), 176082#(<= (+ main_offset 336) main_length), 176083#(<= (+ main_offset 332) main_length), 176080#(<= (+ main_offset 344) main_length), 176081#(<= (+ main_offset 340) main_length), 176086#(<= (+ main_offset 320) main_length), 176087#(<= (+ main_offset 316) main_length), 176084#(<= (+ main_offset 328) main_length), 176085#(<= (+ main_offset 324) main_length), 176090#(<= (+ main_offset 304) main_length), 176091#(<= (+ main_offset 300) main_length), 176088#(<= (+ main_offset 312) main_length), 176089#(<= (+ main_offset 308) main_length), 176094#(<= (+ main_offset 288) main_length), 176095#(<= (+ main_offset 284) main_length), 176092#(<= (+ main_offset 296) main_length), 176093#(<= (+ main_offset 292) main_length), 176098#(<= (+ main_offset 272) main_length), 176099#(<= (+ main_offset 268) main_length), 176096#(<= (+ main_offset 280) main_length), 176097#(<= (+ main_offset 276) main_length)] [2018-07-23 13:54:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 38220 backedges. 0 proven. 38220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:29,537 INFO L450 AbstractCegarLoop]: Interpolant automaton has 198 states [2018-07-23 13:54:29,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2018-07-23 13:54:29,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19503, Invalid=19503, Unknown=0, NotChecked=0, Total=39006 [2018-07-23 13:54:29,540 INFO L87 Difference]: Start difference. First operand 394 states and 394 transitions. Second operand 198 states. [2018-07-23 13:54:31,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:31,375 INFO L93 Difference]: Finished difference Result 397 states and 397 transitions. [2018-07-23 13:54:31,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2018-07-23 13:54:31,375 INFO L78 Accepts]: Start accepts. Automaton has 198 states. Word has length 393 [2018-07-23 13:54:31,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:31,376 INFO L225 Difference]: With dead ends: 397 [2018-07-23 13:54:31,376 INFO L226 Difference]: Without dead ends: 396 [2018-07-23 13:54:31,377 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19503, Invalid=19503, Unknown=0, NotChecked=0, Total=39006 [2018-07-23 13:54:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-07-23 13:54:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2018-07-23 13:54:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2018-07-23 13:54:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2018-07-23 13:54:31,381 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 393 [2018-07-23 13:54:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:31,382 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2018-07-23 13:54:31,382 INFO L472 AbstractCegarLoop]: Interpolant automaton has 198 states. [2018-07-23 13:54:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2018-07-23 13:54:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2018-07-23 13:54:31,383 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:31,383 INFO L357 BasicCegarLoop]: trace histogram [197, 196, 1, 1] [2018-07-23 13:54:31,383 INFO L414 AbstractCegarLoop]: === Iteration 197 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:31,383 INFO L82 PathProgramCache]: Analyzing trace with hash 711775336, now seen corresponding path program 196 times [2018-07-23 13:54:31,383 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 38612 backedges. 0 proven. 38612 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,012 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:33,012 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2018-07-23 13:54:33,012 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:33,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,013 INFO L185 omatonBuilderFactory]: Interpolants [177686#true, 177687#false, 177690#(<= (+ main_offset 1040) main_length), 177691#(<= (+ main_offset 1036) main_length), 177688#(<= (+ main_offset 1048) main_length), 177689#(<= (+ main_offset 1044) main_length), 177694#(<= (+ main_offset 1024) main_length), 177695#(<= (+ main_offset 1020) main_length), 177692#(<= (+ main_offset 1032) main_length), 177693#(<= (+ main_offset 1028) main_length), 177698#(<= (+ main_offset 1008) main_length), 177699#(<= (+ main_offset 1004) main_length), 177696#(<= (+ main_offset 1016) main_length), 177697#(<= (+ main_offset 1012) main_length), 177702#(<= (+ main_offset 992) main_length), 177703#(<= (+ main_offset 988) main_length), 177700#(<= (+ main_offset 1000) main_length), 177701#(<= (+ main_offset 996) main_length), 177706#(<= (+ main_offset 976) main_length), 177707#(<= (+ main_offset 972) main_length), 177704#(<= (+ main_offset 984) main_length), 177705#(<= (+ main_offset 980) main_length), 177710#(<= (+ main_offset 960) main_length), 177711#(<= (+ main_offset 956) main_length), 177708#(<= (+ main_offset 968) main_length), 177709#(<= (+ main_offset 964) main_length), 177714#(<= (+ main_offset 944) main_length), 177715#(<= (+ main_offset 940) main_length), 177712#(<= (+ main_offset 952) main_length), 177713#(<= (+ main_offset 948) main_length), 177718#(<= (+ main_offset 928) main_length), 177719#(<= (+ main_offset 924) main_length), 177716#(<= (+ main_offset 936) main_length), 177717#(<= (+ main_offset 932) main_length), 177722#(<= (+ main_offset 912) main_length), 177723#(<= (+ main_offset 908) main_length), 177720#(<= (+ main_offset 920) main_length), 177721#(<= (+ main_offset 916) main_length), 177726#(<= (+ main_offset 896) main_length), 177727#(<= (+ main_offset 892) main_length), 177724#(<= (+ main_offset 904) main_length), 177725#(<= (+ main_offset 900) main_length), 177730#(<= (+ main_offset 880) main_length), 177731#(<= (+ main_offset 876) main_length), 177728#(<= (+ main_offset 888) main_length), 177729#(<= (+ main_offset 884) main_length), 177734#(<= (+ main_offset 864) main_length), 177735#(<= (+ main_offset 860) main_length), 177732#(<= (+ main_offset 872) main_length), 177733#(<= (+ main_offset 868) main_length), 177738#(<= (+ main_offset 848) main_length), 177739#(<= (+ main_offset 844) main_length), 177736#(<= (+ main_offset 856) main_length), 177737#(<= (+ main_offset 852) main_length), 177742#(<= (+ main_offset 832) main_length), 177743#(<= (+ main_offset 828) main_length), 177740#(<= (+ main_offset 840) main_length), 177741#(<= (+ main_offset 836) main_length), 177746#(<= (+ main_offset 816) main_length), 177747#(<= (+ main_offset 812) main_length), 177744#(<= (+ main_offset 824) main_length), 177745#(<= (+ main_offset 820) main_length), 177750#(<= (+ main_offset 800) main_length), 177751#(<= (+ main_offset 796) main_length), 177748#(<= (+ main_offset 808) main_length), 177749#(<= (+ main_offset 804) main_length), 177754#(<= (+ main_offset 784) main_length), 177755#(<= (+ main_offset 780) main_length), 177752#(<= (+ main_offset 792) main_length), 177753#(<= (+ main_offset 788) main_length), 177758#(<= (+ main_offset 768) main_length), 177759#(<= (+ main_offset 764) main_length), 177756#(<= (+ main_offset 776) main_length), 177757#(<= (+ main_offset 772) main_length), 177762#(<= (+ main_offset 752) main_length), 177763#(<= (+ main_offset 748) main_length), 177760#(<= (+ main_offset 760) main_length), 177761#(<= (+ main_offset 756) main_length), 177766#(<= (+ main_offset 736) main_length), 177767#(<= (+ main_offset 732) main_length), 177764#(<= (+ main_offset 744) main_length), 177765#(<= (+ main_offset 740) main_length), 177770#(<= (+ main_offset 720) main_length), 177771#(<= (+ main_offset 716) main_length), 177768#(<= (+ main_offset 728) main_length), 177769#(<= (+ main_offset 724) main_length), 177774#(<= (+ main_offset 704) main_length), 177775#(<= (+ main_offset 700) main_length), 177772#(<= (+ main_offset 712) main_length), 177773#(<= (+ main_offset 708) main_length), 177778#(<= (+ main_offset 688) main_length), 177779#(<= (+ main_offset 684) main_length), 177776#(<= (+ main_offset 696) main_length), 177777#(<= (+ main_offset 692) main_length), 177782#(<= (+ main_offset 672) main_length), 177783#(<= (+ main_offset 668) main_length), 177780#(<= (+ main_offset 680) main_length), 177781#(<= (+ main_offset 676) main_length), 177786#(<= (+ main_offset 656) main_length), 177787#(<= (+ main_offset 652) main_length), 177784#(<= (+ main_offset 664) main_length), 177785#(<= (+ main_offset 660) main_length), 177790#(<= (+ main_offset 640) main_length), 177791#(<= (+ main_offset 636) main_length), 177788#(<= (+ main_offset 648) main_length), 177789#(<= (+ main_offset 644) main_length), 177794#(<= (+ main_offset 624) main_length), 177795#(<= (+ main_offset 620) main_length), 177792#(<= (+ main_offset 632) main_length), 177793#(<= (+ main_offset 628) main_length), 177798#(<= (+ main_offset 608) main_length), 177799#(<= (+ main_offset 604) main_length), 177796#(<= (+ main_offset 616) main_length), 177797#(<= (+ main_offset 612) main_length), 177802#(<= (+ main_offset 592) main_length), 177803#(<= (+ main_offset 588) main_length), 177800#(<= (+ main_offset 600) main_length), 177801#(<= (+ main_offset 596) main_length), 177806#(<= (+ main_offset 576) main_length), 177807#(<= (+ main_offset 572) main_length), 177804#(<= (+ main_offset 584) main_length), 177805#(<= (+ main_offset 580) main_length), 177810#(<= (+ main_offset 560) main_length), 177811#(<= (+ main_offset 556) main_length), 177808#(<= (+ main_offset 568) main_length), 177809#(<= (+ main_offset 564) main_length), 177814#(<= (+ main_offset 544) main_length), 177815#(<= (+ main_offset 540) main_length), 177812#(<= (+ main_offset 552) main_length), 177813#(<= (+ main_offset 548) main_length), 177818#(<= (+ main_offset 528) main_length), 177819#(<= (+ main_offset 524) main_length), 177816#(<= (+ main_offset 536) main_length), 177817#(<= (+ main_offset 532) main_length), 177822#(<= (+ main_offset 512) main_length), 177823#(<= (+ main_offset 508) main_length), 177820#(<= (+ main_offset 520) main_length), 177821#(<= (+ main_offset 516) main_length), 177826#(<= (+ main_offset 496) main_length), 177827#(<= (+ main_offset 492) main_length), 177824#(<= (+ main_offset 504) main_length), 177825#(<= (+ main_offset 500) main_length), 177830#(<= (+ main_offset 480) main_length), 177831#(<= (+ main_offset 476) main_length), 177828#(<= (+ main_offset 488) main_length), 177829#(<= (+ main_offset 484) main_length), 177834#(<= (+ main_offset 464) main_length), 177835#(<= (+ main_offset 460) main_length), 177832#(<= (+ main_offset 472) main_length), 177833#(<= (+ main_offset 468) main_length), 177838#(<= (+ main_offset 448) main_length), 177839#(<= (+ main_offset 444) main_length), 177836#(<= (+ main_offset 456) main_length), 177837#(<= (+ main_offset 452) main_length), 177842#(<= (+ main_offset 432) main_length), 177843#(<= (+ main_offset 428) main_length), 177840#(<= (+ main_offset 440) main_length), 177841#(<= (+ main_offset 436) main_length), 177846#(<= (+ main_offset 416) main_length), 177847#(<= (+ main_offset 412) main_length), 177844#(<= (+ main_offset 424) main_length), 177845#(<= (+ main_offset 420) main_length), 177850#(<= (+ main_offset 400) main_length), 177851#(<= (+ main_offset 396) main_length), 177848#(<= (+ main_offset 408) main_length), 177849#(<= (+ main_offset 404) main_length), 177854#(<= (+ main_offset 384) main_length), 177855#(<= (+ main_offset 380) main_length), 177852#(<= (+ main_offset 392) main_length), 177853#(<= (+ main_offset 388) main_length), 177858#(<= (+ main_offset 368) main_length), 177859#(<= (+ main_offset 364) main_length), 177856#(<= (+ main_offset 376) main_length), 177857#(<= (+ main_offset 372) main_length), 177862#(<= (+ main_offset 352) main_length), 177863#(<= (+ main_offset 348) main_length), 177860#(<= (+ main_offset 360) main_length), 177861#(<= (+ main_offset 356) main_length), 177866#(<= (+ main_offset 336) main_length), 177867#(<= (+ main_offset 332) main_length), 177864#(<= (+ main_offset 344) main_length), 177865#(<= (+ main_offset 340) main_length), 177870#(<= (+ main_offset 320) main_length), 177871#(<= (+ main_offset 316) main_length), 177868#(<= (+ main_offset 328) main_length), 177869#(<= (+ main_offset 324) main_length), 177874#(<= (+ main_offset 304) main_length), 177875#(<= (+ main_offset 300) main_length), 177872#(<= (+ main_offset 312) main_length), 177873#(<= (+ main_offset 308) main_length), 177878#(<= (+ main_offset 288) main_length), 177879#(<= (+ main_offset 284) main_length), 177876#(<= (+ main_offset 296) main_length), 177877#(<= (+ main_offset 292) main_length), 177882#(<= (+ main_offset 272) main_length), 177883#(<= (+ main_offset 268) main_length), 177880#(<= (+ main_offset 280) main_length), 177881#(<= (+ main_offset 276) main_length), 177884#(<= (+ main_offset 264) main_length)] [2018-07-23 13:54:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 38612 backedges. 0 proven. 38612 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:33,015 INFO L450 AbstractCegarLoop]: Interpolant automaton has 199 states [2018-07-23 13:54:33,017 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2018-07-23 13:54:33,019 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19701, Invalid=19701, Unknown=0, NotChecked=0, Total=39402 [2018-07-23 13:54:33,019 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand 199 states. [2018-07-23 13:54:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:35,072 INFO L93 Difference]: Finished difference Result 399 states and 399 transitions. [2018-07-23 13:54:35,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 199 states. [2018-07-23 13:54:35,073 INFO L78 Accepts]: Start accepts. Automaton has 199 states. Word has length 395 [2018-07-23 13:54:35,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:35,073 INFO L225 Difference]: With dead ends: 399 [2018-07-23 13:54:35,073 INFO L226 Difference]: Without dead ends: 398 [2018-07-23 13:54:35,075 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19701, Invalid=19701, Unknown=0, NotChecked=0, Total=39402 [2018-07-23 13:54:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2018-07-23 13:54:35,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2018-07-23 13:54:35,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2018-07-23 13:54:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 398 transitions. [2018-07-23 13:54:35,080 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 398 transitions. Word has length 395 [2018-07-23 13:54:35,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:35,080 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 398 transitions. [2018-07-23 13:54:35,080 INFO L472 AbstractCegarLoop]: Interpolant automaton has 199 states. [2018-07-23 13:54:35,080 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 398 transitions. [2018-07-23 13:54:35,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-07-23 13:54:35,082 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:35,082 INFO L357 BasicCegarLoop]: trace histogram [198, 197, 1, 1] [2018-07-23 13:54:35,082 INFO L414 AbstractCegarLoop]: === Iteration 198 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1116298922, now seen corresponding path program 197 times [2018-07-23 13:54:35,082 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:36,660 INFO L134 CoverageAnalysis]: Checked inductivity of 39006 backedges. 0 proven. 39006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:36,660 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:36,660 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [198] total 198 [2018-07-23 13:54:36,660 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:36,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:36,661 INFO L185 omatonBuilderFactory]: Interpolants [179479#true, 179482#(<= (+ main_offset 1044) main_length), 179483#(<= (+ main_offset 1040) main_length), 179480#false, 179481#(<= (+ main_offset 1048) main_length), 179486#(<= (+ main_offset 1028) main_length), 179487#(<= (+ main_offset 1024) main_length), 179484#(<= (+ main_offset 1036) main_length), 179485#(<= (+ main_offset 1032) main_length), 179490#(<= (+ main_offset 1012) main_length), 179491#(<= (+ main_offset 1008) main_length), 179488#(<= (+ main_offset 1020) main_length), 179489#(<= (+ main_offset 1016) main_length), 179494#(<= (+ main_offset 996) main_length), 179495#(<= (+ main_offset 992) main_length), 179492#(<= (+ main_offset 1004) main_length), 179493#(<= (+ main_offset 1000) main_length), 179498#(<= (+ main_offset 980) main_length), 179499#(<= (+ main_offset 976) main_length), 179496#(<= (+ main_offset 988) main_length), 179497#(<= (+ main_offset 984) main_length), 179502#(<= (+ main_offset 964) main_length), 179503#(<= (+ main_offset 960) main_length), 179500#(<= (+ main_offset 972) main_length), 179501#(<= (+ main_offset 968) main_length), 179506#(<= (+ main_offset 948) main_length), 179507#(<= (+ main_offset 944) main_length), 179504#(<= (+ main_offset 956) main_length), 179505#(<= (+ main_offset 952) main_length), 179510#(<= (+ main_offset 932) main_length), 179511#(<= (+ main_offset 928) main_length), 179508#(<= (+ main_offset 940) main_length), 179509#(<= (+ main_offset 936) main_length), 179514#(<= (+ main_offset 916) main_length), 179515#(<= (+ main_offset 912) main_length), 179512#(<= (+ main_offset 924) main_length), 179513#(<= (+ main_offset 920) main_length), 179518#(<= (+ main_offset 900) main_length), 179519#(<= (+ main_offset 896) main_length), 179516#(<= (+ main_offset 908) main_length), 179517#(<= (+ main_offset 904) main_length), 179522#(<= (+ main_offset 884) main_length), 179523#(<= (+ main_offset 880) main_length), 179520#(<= (+ main_offset 892) main_length), 179521#(<= (+ main_offset 888) main_length), 179526#(<= (+ main_offset 868) main_length), 179527#(<= (+ main_offset 864) main_length), 179524#(<= (+ main_offset 876) main_length), 179525#(<= (+ main_offset 872) main_length), 179530#(<= (+ main_offset 852) main_length), 179531#(<= (+ main_offset 848) main_length), 179528#(<= (+ main_offset 860) main_length), 179529#(<= (+ main_offset 856) main_length), 179534#(<= (+ main_offset 836) main_length), 179535#(<= (+ main_offset 832) main_length), 179532#(<= (+ main_offset 844) main_length), 179533#(<= (+ main_offset 840) main_length), 179538#(<= (+ main_offset 820) main_length), 179539#(<= (+ main_offset 816) main_length), 179536#(<= (+ main_offset 828) main_length), 179537#(<= (+ main_offset 824) main_length), 179542#(<= (+ main_offset 804) main_length), 179543#(<= (+ main_offset 800) main_length), 179540#(<= (+ main_offset 812) main_length), 179541#(<= (+ main_offset 808) main_length), 179546#(<= (+ main_offset 788) main_length), 179547#(<= (+ main_offset 784) main_length), 179544#(<= (+ main_offset 796) main_length), 179545#(<= (+ main_offset 792) main_length), 179550#(<= (+ main_offset 772) main_length), 179551#(<= (+ main_offset 768) main_length), 179548#(<= (+ main_offset 780) main_length), 179549#(<= (+ main_offset 776) main_length), 179554#(<= (+ main_offset 756) main_length), 179555#(<= (+ main_offset 752) main_length), 179552#(<= (+ main_offset 764) main_length), 179553#(<= (+ main_offset 760) main_length), 179558#(<= (+ main_offset 740) main_length), 179559#(<= (+ main_offset 736) main_length), 179556#(<= (+ main_offset 748) main_length), 179557#(<= (+ main_offset 744) main_length), 179562#(<= (+ main_offset 724) main_length), 179563#(<= (+ main_offset 720) main_length), 179560#(<= (+ main_offset 732) main_length), 179561#(<= (+ main_offset 728) main_length), 179566#(<= (+ main_offset 708) main_length), 179567#(<= (+ main_offset 704) main_length), 179564#(<= (+ main_offset 716) main_length), 179565#(<= (+ main_offset 712) main_length), 179570#(<= (+ main_offset 692) main_length), 179571#(<= (+ main_offset 688) main_length), 179568#(<= (+ main_offset 700) main_length), 179569#(<= (+ main_offset 696) main_length), 179574#(<= (+ main_offset 676) main_length), 179575#(<= (+ main_offset 672) main_length), 179572#(<= (+ main_offset 684) main_length), 179573#(<= (+ main_offset 680) main_length), 179578#(<= (+ main_offset 660) main_length), 179579#(<= (+ main_offset 656) main_length), 179576#(<= (+ main_offset 668) main_length), 179577#(<= (+ main_offset 664) main_length), 179582#(<= (+ main_offset 644) main_length), 179583#(<= (+ main_offset 640) main_length), 179580#(<= (+ main_offset 652) main_length), 179581#(<= (+ main_offset 648) main_length), 179586#(<= (+ main_offset 628) main_length), 179587#(<= (+ main_offset 624) main_length), 179584#(<= (+ main_offset 636) main_length), 179585#(<= (+ main_offset 632) main_length), 179590#(<= (+ main_offset 612) main_length), 179591#(<= (+ main_offset 608) main_length), 179588#(<= (+ main_offset 620) main_length), 179589#(<= (+ main_offset 616) main_length), 179594#(<= (+ main_offset 596) main_length), 179595#(<= (+ main_offset 592) main_length), 179592#(<= (+ main_offset 604) main_length), 179593#(<= (+ main_offset 600) main_length), 179598#(<= (+ main_offset 580) main_length), 179599#(<= (+ main_offset 576) main_length), 179596#(<= (+ main_offset 588) main_length), 179597#(<= (+ main_offset 584) main_length), 179602#(<= (+ main_offset 564) main_length), 179603#(<= (+ main_offset 560) main_length), 179600#(<= (+ main_offset 572) main_length), 179601#(<= (+ main_offset 568) main_length), 179606#(<= (+ main_offset 548) main_length), 179607#(<= (+ main_offset 544) main_length), 179604#(<= (+ main_offset 556) main_length), 179605#(<= (+ main_offset 552) main_length), 179610#(<= (+ main_offset 532) main_length), 179611#(<= (+ main_offset 528) main_length), 179608#(<= (+ main_offset 540) main_length), 179609#(<= (+ main_offset 536) main_length), 179614#(<= (+ main_offset 516) main_length), 179615#(<= (+ main_offset 512) main_length), 179612#(<= (+ main_offset 524) main_length), 179613#(<= (+ main_offset 520) main_length), 179618#(<= (+ main_offset 500) main_length), 179619#(<= (+ main_offset 496) main_length), 179616#(<= (+ main_offset 508) main_length), 179617#(<= (+ main_offset 504) main_length), 179622#(<= (+ main_offset 484) main_length), 179623#(<= (+ main_offset 480) main_length), 179620#(<= (+ main_offset 492) main_length), 179621#(<= (+ main_offset 488) main_length), 179626#(<= (+ main_offset 468) main_length), 179627#(<= (+ main_offset 464) main_length), 179624#(<= (+ main_offset 476) main_length), 179625#(<= (+ main_offset 472) main_length), 179630#(<= (+ main_offset 452) main_length), 179631#(<= (+ main_offset 448) main_length), 179628#(<= (+ main_offset 460) main_length), 179629#(<= (+ main_offset 456) main_length), 179634#(<= (+ main_offset 436) main_length), 179635#(<= (+ main_offset 432) main_length), 179632#(<= (+ main_offset 444) main_length), 179633#(<= (+ main_offset 440) main_length), 179638#(<= (+ main_offset 420) main_length), 179639#(<= (+ main_offset 416) main_length), 179636#(<= (+ main_offset 428) main_length), 179637#(<= (+ main_offset 424) main_length), 179642#(<= (+ main_offset 404) main_length), 179643#(<= (+ main_offset 400) main_length), 179640#(<= (+ main_offset 412) main_length), 179641#(<= (+ main_offset 408) main_length), 179646#(<= (+ main_offset 388) main_length), 179647#(<= (+ main_offset 384) main_length), 179644#(<= (+ main_offset 396) main_length), 179645#(<= (+ main_offset 392) main_length), 179650#(<= (+ main_offset 372) main_length), 179651#(<= (+ main_offset 368) main_length), 179648#(<= (+ main_offset 380) main_length), 179649#(<= (+ main_offset 376) main_length), 179654#(<= (+ main_offset 356) main_length), 179655#(<= (+ main_offset 352) main_length), 179652#(<= (+ main_offset 364) main_length), 179653#(<= (+ main_offset 360) main_length), 179658#(<= (+ main_offset 340) main_length), 179659#(<= (+ main_offset 336) main_length), 179656#(<= (+ main_offset 348) main_length), 179657#(<= (+ main_offset 344) main_length), 179662#(<= (+ main_offset 324) main_length), 179663#(<= (+ main_offset 320) main_length), 179660#(<= (+ main_offset 332) main_length), 179661#(<= (+ main_offset 328) main_length), 179666#(<= (+ main_offset 308) main_length), 179667#(<= (+ main_offset 304) main_length), 179664#(<= (+ main_offset 316) main_length), 179665#(<= (+ main_offset 312) main_length), 179670#(<= (+ main_offset 292) main_length), 179671#(<= (+ main_offset 288) main_length), 179668#(<= (+ main_offset 300) main_length), 179669#(<= (+ main_offset 296) main_length), 179674#(<= (+ main_offset 276) main_length), 179675#(<= (+ main_offset 272) main_length), 179672#(<= (+ main_offset 284) main_length), 179673#(<= (+ main_offset 280) main_length), 179678#(<= (+ main_offset 260) main_length), 179676#(<= (+ main_offset 268) main_length), 179677#(<= (+ main_offset 264) main_length)] [2018-07-23 13:54:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 39006 backedges. 0 proven. 39006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:36,663 INFO L450 AbstractCegarLoop]: Interpolant automaton has 200 states [2018-07-23 13:54:36,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2018-07-23 13:54:36,666 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19900, Invalid=19900, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:54:36,666 INFO L87 Difference]: Start difference. First operand 398 states and 398 transitions. Second operand 200 states. [2018-07-23 13:54:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:38,738 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2018-07-23 13:54:38,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2018-07-23 13:54:38,738 INFO L78 Accepts]: Start accepts. Automaton has 200 states. Word has length 397 [2018-07-23 13:54:38,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:38,739 INFO L225 Difference]: With dead ends: 401 [2018-07-23 13:54:38,739 INFO L226 Difference]: Without dead ends: 400 [2018-07-23 13:54:38,741 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 198 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=19900, Invalid=19900, Unknown=0, NotChecked=0, Total=39800 [2018-07-23 13:54:38,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-07-23 13:54:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2018-07-23 13:54:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 400 states. [2018-07-23 13:54:38,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 400 transitions. [2018-07-23 13:54:38,745 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 400 transitions. Word has length 397 [2018-07-23 13:54:38,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:38,745 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 400 transitions. [2018-07-23 13:54:38,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 200 states. [2018-07-23 13:54:38,746 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 400 transitions. [2018-07-23 13:54:38,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2018-07-23 13:54:38,747 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:38,747 INFO L357 BasicCegarLoop]: trace histogram [199, 198, 1, 1] [2018-07-23 13:54:38,747 INFO L414 AbstractCegarLoop]: === Iteration 199 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:38,747 INFO L82 PathProgramCache]: Analyzing trace with hash -978558868, now seen corresponding path program 198 times [2018-07-23 13:54:38,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 39402 backedges. 0 proven. 39402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,274 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:40,274 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [199] total 199 [2018-07-23 13:54:40,275 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:40,275 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 13:54:40,275 INFO L185 omatonBuilderFactory]: Interpolants [181282#false, 181283#(<= (+ main_offset 1048) main_length), 181281#true, 181286#(<= (+ main_offset 1036) main_length), 181287#(<= (+ main_offset 1032) main_length), 181284#(<= (+ main_offset 1044) main_length), 181285#(<= (+ main_offset 1040) main_length), 181290#(<= (+ main_offset 1020) main_length), 181291#(<= (+ main_offset 1016) main_length), 181288#(<= (+ main_offset 1028) main_length), 181289#(<= (+ main_offset 1024) main_length), 181294#(<= (+ main_offset 1004) main_length), 181295#(<= (+ main_offset 1000) main_length), 181292#(<= (+ main_offset 1012) main_length), 181293#(<= (+ main_offset 1008) main_length), 181298#(<= (+ main_offset 988) main_length), 181299#(<= (+ main_offset 984) main_length), 181296#(<= (+ main_offset 996) main_length), 181297#(<= (+ main_offset 992) main_length), 181302#(<= (+ main_offset 972) main_length), 181303#(<= (+ main_offset 968) main_length), 181300#(<= (+ main_offset 980) main_length), 181301#(<= (+ main_offset 976) main_length), 181306#(<= (+ main_offset 956) main_length), 181307#(<= (+ main_offset 952) main_length), 181304#(<= (+ main_offset 964) main_length), 181305#(<= (+ main_offset 960) main_length), 181310#(<= (+ main_offset 940) main_length), 181311#(<= (+ main_offset 936) main_length), 181308#(<= (+ main_offset 948) main_length), 181309#(<= (+ main_offset 944) main_length), 181314#(<= (+ main_offset 924) main_length), 181315#(<= (+ main_offset 920) main_length), 181312#(<= (+ main_offset 932) main_length), 181313#(<= (+ main_offset 928) main_length), 181318#(<= (+ main_offset 908) main_length), 181319#(<= (+ main_offset 904) main_length), 181316#(<= (+ main_offset 916) main_length), 181317#(<= (+ main_offset 912) main_length), 181322#(<= (+ main_offset 892) main_length), 181323#(<= (+ main_offset 888) main_length), 181320#(<= (+ main_offset 900) main_length), 181321#(<= (+ main_offset 896) main_length), 181326#(<= (+ main_offset 876) main_length), 181327#(<= (+ main_offset 872) main_length), 181324#(<= (+ main_offset 884) main_length), 181325#(<= (+ main_offset 880) main_length), 181330#(<= (+ main_offset 860) main_length), 181331#(<= (+ main_offset 856) main_length), 181328#(<= (+ main_offset 868) main_length), 181329#(<= (+ main_offset 864) main_length), 181334#(<= (+ main_offset 844) main_length), 181335#(<= (+ main_offset 840) main_length), 181332#(<= (+ main_offset 852) main_length), 181333#(<= (+ main_offset 848) main_length), 181338#(<= (+ main_offset 828) main_length), 181339#(<= (+ main_offset 824) main_length), 181336#(<= (+ main_offset 836) main_length), 181337#(<= (+ main_offset 832) main_length), 181342#(<= (+ main_offset 812) main_length), 181343#(<= (+ main_offset 808) main_length), 181340#(<= (+ main_offset 820) main_length), 181341#(<= (+ main_offset 816) main_length), 181346#(<= (+ main_offset 796) main_length), 181347#(<= (+ main_offset 792) main_length), 181344#(<= (+ main_offset 804) main_length), 181345#(<= (+ main_offset 800) main_length), 181350#(<= (+ main_offset 780) main_length), 181351#(<= (+ main_offset 776) main_length), 181348#(<= (+ main_offset 788) main_length), 181349#(<= (+ main_offset 784) main_length), 181354#(<= (+ main_offset 764) main_length), 181355#(<= (+ main_offset 760) main_length), 181352#(<= (+ main_offset 772) main_length), 181353#(<= (+ main_offset 768) main_length), 181358#(<= (+ main_offset 748) main_length), 181359#(<= (+ main_offset 744) main_length), 181356#(<= (+ main_offset 756) main_length), 181357#(<= (+ main_offset 752) main_length), 181362#(<= (+ main_offset 732) main_length), 181363#(<= (+ main_offset 728) main_length), 181360#(<= (+ main_offset 740) main_length), 181361#(<= (+ main_offset 736) main_length), 181366#(<= (+ main_offset 716) main_length), 181367#(<= (+ main_offset 712) main_length), 181364#(<= (+ main_offset 724) main_length), 181365#(<= (+ main_offset 720) main_length), 181370#(<= (+ main_offset 700) main_length), 181371#(<= (+ main_offset 696) main_length), 181368#(<= (+ main_offset 708) main_length), 181369#(<= (+ main_offset 704) main_length), 181374#(<= (+ main_offset 684) main_length), 181375#(<= (+ main_offset 680) main_length), 181372#(<= (+ main_offset 692) main_length), 181373#(<= (+ main_offset 688) main_length), 181378#(<= (+ main_offset 668) main_length), 181379#(<= (+ main_offset 664) main_length), 181376#(<= (+ main_offset 676) main_length), 181377#(<= (+ main_offset 672) main_length), 181382#(<= (+ main_offset 652) main_length), 181383#(<= (+ main_offset 648) main_length), 181380#(<= (+ main_offset 660) main_length), 181381#(<= (+ main_offset 656) main_length), 181386#(<= (+ main_offset 636) main_length), 181387#(<= (+ main_offset 632) main_length), 181384#(<= (+ main_offset 644) main_length), 181385#(<= (+ main_offset 640) main_length), 181390#(<= (+ main_offset 620) main_length), 181391#(<= (+ main_offset 616) main_length), 181388#(<= (+ main_offset 628) main_length), 181389#(<= (+ main_offset 624) main_length), 181394#(<= (+ main_offset 604) main_length), 181395#(<= (+ main_offset 600) main_length), 181392#(<= (+ main_offset 612) main_length), 181393#(<= (+ main_offset 608) main_length), 181398#(<= (+ main_offset 588) main_length), 181399#(<= (+ main_offset 584) main_length), 181396#(<= (+ main_offset 596) main_length), 181397#(<= (+ main_offset 592) main_length), 181402#(<= (+ main_offset 572) main_length), 181403#(<= (+ main_offset 568) main_length), 181400#(<= (+ main_offset 580) main_length), 181401#(<= (+ main_offset 576) main_length), 181406#(<= (+ main_offset 556) main_length), 181407#(<= (+ main_offset 552) main_length), 181404#(<= (+ main_offset 564) main_length), 181405#(<= (+ main_offset 560) main_length), 181410#(<= (+ main_offset 540) main_length), 181411#(<= (+ main_offset 536) main_length), 181408#(<= (+ main_offset 548) main_length), 181409#(<= (+ main_offset 544) main_length), 181414#(<= (+ main_offset 524) main_length), 181415#(<= (+ main_offset 520) main_length), 181412#(<= (+ main_offset 532) main_length), 181413#(<= (+ main_offset 528) main_length), 181418#(<= (+ main_offset 508) main_length), 181419#(<= (+ main_offset 504) main_length), 181416#(<= (+ main_offset 516) main_length), 181417#(<= (+ main_offset 512) main_length), 181422#(<= (+ main_offset 492) main_length), 181423#(<= (+ main_offset 488) main_length), 181420#(<= (+ main_offset 500) main_length), 181421#(<= (+ main_offset 496) main_length), 181426#(<= (+ main_offset 476) main_length), 181427#(<= (+ main_offset 472) main_length), 181424#(<= (+ main_offset 484) main_length), 181425#(<= (+ main_offset 480) main_length), 181430#(<= (+ main_offset 460) main_length), 181431#(<= (+ main_offset 456) main_length), 181428#(<= (+ main_offset 468) main_length), 181429#(<= (+ main_offset 464) main_length), 181434#(<= (+ main_offset 444) main_length), 181435#(<= (+ main_offset 440) main_length), 181432#(<= (+ main_offset 452) main_length), 181433#(<= (+ main_offset 448) main_length), 181438#(<= (+ main_offset 428) main_length), 181439#(<= (+ main_offset 424) main_length), 181436#(<= (+ main_offset 436) main_length), 181437#(<= (+ main_offset 432) main_length), 181442#(<= (+ main_offset 412) main_length), 181443#(<= (+ main_offset 408) main_length), 181440#(<= (+ main_offset 420) main_length), 181441#(<= (+ main_offset 416) main_length), 181446#(<= (+ main_offset 396) main_length), 181447#(<= (+ main_offset 392) main_length), 181444#(<= (+ main_offset 404) main_length), 181445#(<= (+ main_offset 400) main_length), 181450#(<= (+ main_offset 380) main_length), 181451#(<= (+ main_offset 376) main_length), 181448#(<= (+ main_offset 388) main_length), 181449#(<= (+ main_offset 384) main_length), 181454#(<= (+ main_offset 364) main_length), 181455#(<= (+ main_offset 360) main_length), 181452#(<= (+ main_offset 372) main_length), 181453#(<= (+ main_offset 368) main_length), 181458#(<= (+ main_offset 348) main_length), 181459#(<= (+ main_offset 344) main_length), 181456#(<= (+ main_offset 356) main_length), 181457#(<= (+ main_offset 352) main_length), 181462#(<= (+ main_offset 332) main_length), 181463#(<= (+ main_offset 328) main_length), 181460#(<= (+ main_offset 340) main_length), 181461#(<= (+ main_offset 336) main_length), 181466#(<= (+ main_offset 316) main_length), 181467#(<= (+ main_offset 312) main_length), 181464#(<= (+ main_offset 324) main_length), 181465#(<= (+ main_offset 320) main_length), 181470#(<= (+ main_offset 300) main_length), 181471#(<= (+ main_offset 296) main_length), 181468#(<= (+ main_offset 308) main_length), 181469#(<= (+ main_offset 304) main_length), 181474#(<= (+ main_offset 284) main_length), 181475#(<= (+ main_offset 280) main_length), 181472#(<= (+ main_offset 292) main_length), 181473#(<= (+ main_offset 288) main_length), 181478#(<= (+ main_offset 268) main_length), 181479#(<= (+ main_offset 264) main_length), 181476#(<= (+ main_offset 276) main_length), 181477#(<= (+ main_offset 272) main_length), 181480#(<= (+ main_offset 260) main_length), 181481#(<= (+ main_offset 256) main_length)] [2018-07-23 13:54:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 39402 backedges. 0 proven. 39402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:40,277 INFO L450 AbstractCegarLoop]: Interpolant automaton has 201 states [2018-07-23 13:54:40,280 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2018-07-23 13:54:40,281 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2018-07-23 13:54:40,281 INFO L87 Difference]: Start difference. First operand 400 states and 400 transitions. Second operand 201 states. [2018-07-23 13:54:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:42,021 INFO L93 Difference]: Finished difference Result 403 states and 403 transitions. [2018-07-23 13:54:42,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2018-07-23 13:54:42,021 INFO L78 Accepts]: Start accepts. Automaton has 201 states. Word has length 399 [2018-07-23 13:54:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:42,021 INFO L225 Difference]: With dead ends: 403 [2018-07-23 13:54:42,021 INFO L226 Difference]: Without dead ends: 402 [2018-07-23 13:54:42,022 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2018-07-23 13:54:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2018-07-23 13:54:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2018-07-23 13:54:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2018-07-23 13:54:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 402 transitions. [2018-07-23 13:54:42,027 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 402 transitions. Word has length 399 [2018-07-23 13:54:42,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:42,027 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 402 transitions. [2018-07-23 13:54:42,027 INFO L472 AbstractCegarLoop]: Interpolant automaton has 201 states. [2018-07-23 13:54:42,027 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 402 transitions. [2018-07-23 13:54:42,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2018-07-23 13:54:42,028 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:42,028 INFO L357 BasicCegarLoop]: trace histogram [200, 199, 1, 1] [2018-07-23 13:54:42,028 INFO L414 AbstractCegarLoop]: === Iteration 200 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:42,028 INFO L82 PathProgramCache]: Analyzing trace with hash 202766766, now seen corresponding path program 199 times [2018-07-23 13:54:42,029 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 39800 backedges. 0 proven. 39800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:43,669 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:43,669 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [200] total 200 [2018-07-23 13:54:43,669 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:43,670 INFO L185 omatonBuilderFactory]: Interpolants [183094#(<= (+ main_offset 1048) main_length), 183095#(<= (+ main_offset 1044) main_length), 183092#true, 183093#false, 183098#(<= (+ main_offset 1032) main_length), 183099#(<= (+ main_offset 1028) main_length), 183096#(<= (+ main_offset 1040) main_length), 183097#(<= (+ main_offset 1036) main_length), 183102#(<= (+ main_offset 1016) main_length), 183103#(<= (+ main_offset 1012) main_length), 183100#(<= (+ main_offset 1024) main_length), 183101#(<= (+ main_offset 1020) main_length), 183106#(<= (+ main_offset 1000) main_length), 183107#(<= (+ main_offset 996) main_length), 183104#(<= (+ main_offset 1008) main_length), 183105#(<= (+ main_offset 1004) main_length), 183110#(<= (+ main_offset 984) main_length), 183111#(<= (+ main_offset 980) main_length), 183108#(<= (+ main_offset 992) main_length), 183109#(<= (+ main_offset 988) main_length), 183114#(<= (+ main_offset 968) main_length), 183115#(<= (+ main_offset 964) main_length), 183112#(<= (+ main_offset 976) main_length), 183113#(<= (+ main_offset 972) main_length), 183118#(<= (+ main_offset 952) main_length), 183119#(<= (+ main_offset 948) main_length), 183116#(<= (+ main_offset 960) main_length), 183117#(<= (+ main_offset 956) main_length), 183122#(<= (+ main_offset 936) main_length), 183123#(<= (+ main_offset 932) main_length), 183120#(<= (+ main_offset 944) main_length), 183121#(<= (+ main_offset 940) main_length), 183126#(<= (+ main_offset 920) main_length), 183127#(<= (+ main_offset 916) main_length), 183124#(<= (+ main_offset 928) main_length), 183125#(<= (+ main_offset 924) main_length), 183130#(<= (+ main_offset 904) main_length), 183131#(<= (+ main_offset 900) main_length), 183128#(<= (+ main_offset 912) main_length), 183129#(<= (+ main_offset 908) main_length), 183134#(<= (+ main_offset 888) main_length), 183135#(<= (+ main_offset 884) main_length), 183132#(<= (+ main_offset 896) main_length), 183133#(<= (+ main_offset 892) main_length), 183138#(<= (+ main_offset 872) main_length), 183139#(<= (+ main_offset 868) main_length), 183136#(<= (+ main_offset 880) main_length), 183137#(<= (+ main_offset 876) main_length), 183142#(<= (+ main_offset 856) main_length), 183143#(<= (+ main_offset 852) main_length), 183140#(<= (+ main_offset 864) main_length), 183141#(<= (+ main_offset 860) main_length), 183146#(<= (+ main_offset 840) main_length), 183147#(<= (+ main_offset 836) main_length), 183144#(<= (+ main_offset 848) main_length), 183145#(<= (+ main_offset 844) main_length), 183150#(<= (+ main_offset 824) main_length), 183151#(<= (+ main_offset 820) main_length), 183148#(<= (+ main_offset 832) main_length), 183149#(<= (+ main_offset 828) main_length), 183154#(<= (+ main_offset 808) main_length), 183155#(<= (+ main_offset 804) main_length), 183152#(<= (+ main_offset 816) main_length), 183153#(<= (+ main_offset 812) main_length), 183158#(<= (+ main_offset 792) main_length), 183159#(<= (+ main_offset 788) main_length), 183156#(<= (+ main_offset 800) main_length), 183157#(<= (+ main_offset 796) main_length), 183162#(<= (+ main_offset 776) main_length), 183163#(<= (+ main_offset 772) main_length), 183160#(<= (+ main_offset 784) main_length), 183161#(<= (+ main_offset 780) main_length), 183166#(<= (+ main_offset 760) main_length), 183167#(<= (+ main_offset 756) main_length), 183164#(<= (+ main_offset 768) main_length), 183165#(<= (+ main_offset 764) main_length), 183170#(<= (+ main_offset 744) main_length), 183171#(<= (+ main_offset 740) main_length), 183168#(<= (+ main_offset 752) main_length), 183169#(<= (+ main_offset 748) main_length), 183174#(<= (+ main_offset 728) main_length), 183175#(<= (+ main_offset 724) main_length), 183172#(<= (+ main_offset 736) main_length), 183173#(<= (+ main_offset 732) main_length), 183178#(<= (+ main_offset 712) main_length), 183179#(<= (+ main_offset 708) main_length), 183176#(<= (+ main_offset 720) main_length), 183177#(<= (+ main_offset 716) main_length), 183182#(<= (+ main_offset 696) main_length), 183183#(<= (+ main_offset 692) main_length), 183180#(<= (+ main_offset 704) main_length), 183181#(<= (+ main_offset 700) main_length), 183186#(<= (+ main_offset 680) main_length), 183187#(<= (+ main_offset 676) main_length), 183184#(<= (+ main_offset 688) main_length), 183185#(<= (+ main_offset 684) main_length), 183190#(<= (+ main_offset 664) main_length), 183191#(<= (+ main_offset 660) main_length), 183188#(<= (+ main_offset 672) main_length), 183189#(<= (+ main_offset 668) main_length), 183194#(<= (+ main_offset 648) main_length), 183195#(<= (+ main_offset 644) main_length), 183192#(<= (+ main_offset 656) main_length), 183193#(<= (+ main_offset 652) main_length), 183198#(<= (+ main_offset 632) main_length), 183199#(<= (+ main_offset 628) main_length), 183196#(<= (+ main_offset 640) main_length), 183197#(<= (+ main_offset 636) main_length), 183202#(<= (+ main_offset 616) main_length), 183203#(<= (+ main_offset 612) main_length), 183200#(<= (+ main_offset 624) main_length), 183201#(<= (+ main_offset 620) main_length), 183206#(<= (+ main_offset 600) main_length), 183207#(<= (+ main_offset 596) main_length), 183204#(<= (+ main_offset 608) main_length), 183205#(<= (+ main_offset 604) main_length), 183210#(<= (+ main_offset 584) main_length), 183211#(<= (+ main_offset 580) main_length), 183208#(<= (+ main_offset 592) main_length), 183209#(<= (+ main_offset 588) main_length), 183214#(<= (+ main_offset 568) main_length), 183215#(<= (+ main_offset 564) main_length), 183212#(<= (+ main_offset 576) main_length), 183213#(<= (+ main_offset 572) main_length), 183218#(<= (+ main_offset 552) main_length), 183219#(<= (+ main_offset 548) main_length), 183216#(<= (+ main_offset 560) main_length), 183217#(<= (+ main_offset 556) main_length), 183222#(<= (+ main_offset 536) main_length), 183223#(<= (+ main_offset 532) main_length), 183220#(<= (+ main_offset 544) main_length), 183221#(<= (+ main_offset 540) main_length), 183226#(<= (+ main_offset 520) main_length), 183227#(<= (+ main_offset 516) main_length), 183224#(<= (+ main_offset 528) main_length), 183225#(<= (+ main_offset 524) main_length), 183230#(<= (+ main_offset 504) main_length), 183231#(<= (+ main_offset 500) main_length), 183228#(<= (+ main_offset 512) main_length), 183229#(<= (+ main_offset 508) main_length), 183234#(<= (+ main_offset 488) main_length), 183235#(<= (+ main_offset 484) main_length), 183232#(<= (+ main_offset 496) main_length), 183233#(<= (+ main_offset 492) main_length), 183238#(<= (+ main_offset 472) main_length), 183239#(<= (+ main_offset 468) main_length), 183236#(<= (+ main_offset 480) main_length), 183237#(<= (+ main_offset 476) main_length), 183242#(<= (+ main_offset 456) main_length), 183243#(<= (+ main_offset 452) main_length), 183240#(<= (+ main_offset 464) main_length), 183241#(<= (+ main_offset 460) main_length), 183246#(<= (+ main_offset 440) main_length), 183247#(<= (+ main_offset 436) main_length), 183244#(<= (+ main_offset 448) main_length), 183245#(<= (+ main_offset 444) main_length), 183250#(<= (+ main_offset 424) main_length), 183251#(<= (+ main_offset 420) main_length), 183248#(<= (+ main_offset 432) main_length), 183249#(<= (+ main_offset 428) main_length), 183254#(<= (+ main_offset 408) main_length), 183255#(<= (+ main_offset 404) main_length), 183252#(<= (+ main_offset 416) main_length), 183253#(<= (+ main_offset 412) main_length), 183258#(<= (+ main_offset 392) main_length), 183259#(<= (+ main_offset 388) main_length), 183256#(<= (+ main_offset 400) main_length), 183257#(<= (+ main_offset 396) main_length), 183262#(<= (+ main_offset 376) main_length), 183263#(<= (+ main_offset 372) main_length), 183260#(<= (+ main_offset 384) main_length), 183261#(<= (+ main_offset 380) main_length), 183266#(<= (+ main_offset 360) main_length), 183267#(<= (+ main_offset 356) main_length), 183264#(<= (+ main_offset 368) main_length), 183265#(<= (+ main_offset 364) main_length), 183270#(<= (+ main_offset 344) main_length), 183271#(<= (+ main_offset 340) main_length), 183268#(<= (+ main_offset 352) main_length), 183269#(<= (+ main_offset 348) main_length), 183274#(<= (+ main_offset 328) main_length), 183275#(<= (+ main_offset 324) main_length), 183272#(<= (+ main_offset 336) main_length), 183273#(<= (+ main_offset 332) main_length), 183278#(<= (+ main_offset 312) main_length), 183279#(<= (+ main_offset 308) main_length), 183276#(<= (+ main_offset 320) main_length), 183277#(<= (+ main_offset 316) main_length), 183282#(<= (+ main_offset 296) main_length), 183283#(<= (+ main_offset 292) main_length), 183280#(<= (+ main_offset 304) main_length), 183281#(<= (+ main_offset 300) main_length), 183286#(<= (+ main_offset 280) main_length), 183287#(<= (+ main_offset 276) main_length), 183284#(<= (+ main_offset 288) main_length), 183285#(<= (+ main_offset 284) main_length), 183290#(<= (+ main_offset 264) main_length), 183291#(<= (+ main_offset 260) main_length), 183288#(<= (+ main_offset 272) main_length), 183289#(<= (+ main_offset 268) main_length), 183292#(<= (+ main_offset 256) main_length), 183293#(<= (+ main_offset 252) main_length)] [2018-07-23 13:54:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 39800 backedges. 0 proven. 39800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:43,672 INFO L450 AbstractCegarLoop]: Interpolant automaton has 202 states [2018-07-23 13:54:43,675 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2018-07-23 13:54:43,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20301, Invalid=20301, Unknown=0, NotChecked=0, Total=40602 [2018-07-23 13:54:43,676 INFO L87 Difference]: Start difference. First operand 402 states and 402 transitions. Second operand 202 states. [2018-07-23 13:54:45,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:45,667 INFO L93 Difference]: Finished difference Result 405 states and 405 transitions. [2018-07-23 13:54:45,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2018-07-23 13:54:45,667 INFO L78 Accepts]: Start accepts. Automaton has 202 states. Word has length 401 [2018-07-23 13:54:45,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:45,668 INFO L225 Difference]: With dead ends: 405 [2018-07-23 13:54:45,668 INFO L226 Difference]: Without dead ends: 404 [2018-07-23 13:54:45,670 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=20301, Invalid=20301, Unknown=0, NotChecked=0, Total=40602 [2018-07-23 13:54:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-07-23 13:54:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2018-07-23 13:54:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2018-07-23 13:54:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 404 transitions. [2018-07-23 13:54:45,675 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 404 transitions. Word has length 401 [2018-07-23 13:54:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:45,675 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 404 transitions. [2018-07-23 13:54:45,675 INFO L472 AbstractCegarLoop]: Interpolant automaton has 202 states. [2018-07-23 13:54:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 404 transitions. [2018-07-23 13:54:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-07-23 13:54:45,676 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:45,677 INFO L357 BasicCegarLoop]: trace histogram [201, 200, 1, 1] [2018-07-23 13:54:45,677 INFO L414 AbstractCegarLoop]: === Iteration 201 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:45,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1585334896, now seen corresponding path program 200 times [2018-07-23 13:54:45,677 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:47,421 INFO L134 CoverageAnalysis]: Checked inductivity of 40200 backedges. 0 proven. 40200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,422 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:47,422 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [201] total 201 [2018-07-23 13:54:47,422 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:47,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,423 INFO L185 omatonBuilderFactory]: Interpolants [184914#(<= (+ main_offset 1048) main_length), 184915#(<= (+ main_offset 1044) main_length), 184912#true, 184913#false, 184918#(<= (+ main_offset 1032) main_length), 184919#(<= (+ main_offset 1028) main_length), 184916#(<= (+ main_offset 1040) main_length), 184917#(<= (+ main_offset 1036) main_length), 184922#(<= (+ main_offset 1016) main_length), 184923#(<= (+ main_offset 1012) main_length), 184920#(<= (+ main_offset 1024) main_length), 184921#(<= (+ main_offset 1020) main_length), 184926#(<= (+ main_offset 1000) main_length), 184927#(<= (+ main_offset 996) main_length), 184924#(<= (+ main_offset 1008) main_length), 184925#(<= (+ main_offset 1004) main_length), 184930#(<= (+ main_offset 984) main_length), 184931#(<= (+ main_offset 980) main_length), 184928#(<= (+ main_offset 992) main_length), 184929#(<= (+ main_offset 988) main_length), 184934#(<= (+ main_offset 968) main_length), 184935#(<= (+ main_offset 964) main_length), 184932#(<= (+ main_offset 976) main_length), 184933#(<= (+ main_offset 972) main_length), 184938#(<= (+ main_offset 952) main_length), 184939#(<= (+ main_offset 948) main_length), 184936#(<= (+ main_offset 960) main_length), 184937#(<= (+ main_offset 956) main_length), 184942#(<= (+ main_offset 936) main_length), 184943#(<= (+ main_offset 932) main_length), 184940#(<= (+ main_offset 944) main_length), 184941#(<= (+ main_offset 940) main_length), 184946#(<= (+ main_offset 920) main_length), 184947#(<= (+ main_offset 916) main_length), 184944#(<= (+ main_offset 928) main_length), 184945#(<= (+ main_offset 924) main_length), 184950#(<= (+ main_offset 904) main_length), 184951#(<= (+ main_offset 900) main_length), 184948#(<= (+ main_offset 912) main_length), 184949#(<= (+ main_offset 908) main_length), 184954#(<= (+ main_offset 888) main_length), 184955#(<= (+ main_offset 884) main_length), 184952#(<= (+ main_offset 896) main_length), 184953#(<= (+ main_offset 892) main_length), 184958#(<= (+ main_offset 872) main_length), 184959#(<= (+ main_offset 868) main_length), 184956#(<= (+ main_offset 880) main_length), 184957#(<= (+ main_offset 876) main_length), 184962#(<= (+ main_offset 856) main_length), 184963#(<= (+ main_offset 852) main_length), 184960#(<= (+ main_offset 864) main_length), 184961#(<= (+ main_offset 860) main_length), 184966#(<= (+ main_offset 840) main_length), 184967#(<= (+ main_offset 836) main_length), 184964#(<= (+ main_offset 848) main_length), 184965#(<= (+ main_offset 844) main_length), 184970#(<= (+ main_offset 824) main_length), 184971#(<= (+ main_offset 820) main_length), 184968#(<= (+ main_offset 832) main_length), 184969#(<= (+ main_offset 828) main_length), 184974#(<= (+ main_offset 808) main_length), 184975#(<= (+ main_offset 804) main_length), 184972#(<= (+ main_offset 816) main_length), 184973#(<= (+ main_offset 812) main_length), 184978#(<= (+ main_offset 792) main_length), 184979#(<= (+ main_offset 788) main_length), 184976#(<= (+ main_offset 800) main_length), 184977#(<= (+ main_offset 796) main_length), 184982#(<= (+ main_offset 776) main_length), 184983#(<= (+ main_offset 772) main_length), 184980#(<= (+ main_offset 784) main_length), 184981#(<= (+ main_offset 780) main_length), 184986#(<= (+ main_offset 760) main_length), 184987#(<= (+ main_offset 756) main_length), 184984#(<= (+ main_offset 768) main_length), 184985#(<= (+ main_offset 764) main_length), 184990#(<= (+ main_offset 744) main_length), 184991#(<= (+ main_offset 740) main_length), 184988#(<= (+ main_offset 752) main_length), 184989#(<= (+ main_offset 748) main_length), 184994#(<= (+ main_offset 728) main_length), 184995#(<= (+ main_offset 724) main_length), 184992#(<= (+ main_offset 736) main_length), 184993#(<= (+ main_offset 732) main_length), 184998#(<= (+ main_offset 712) main_length), 184999#(<= (+ main_offset 708) main_length), 184996#(<= (+ main_offset 720) main_length), 184997#(<= (+ main_offset 716) main_length), 185002#(<= (+ main_offset 696) main_length), 185003#(<= (+ main_offset 692) main_length), 185000#(<= (+ main_offset 704) main_length), 185001#(<= (+ main_offset 700) main_length), 185006#(<= (+ main_offset 680) main_length), 185007#(<= (+ main_offset 676) main_length), 185004#(<= (+ main_offset 688) main_length), 185005#(<= (+ main_offset 684) main_length), 185010#(<= (+ main_offset 664) main_length), 185011#(<= (+ main_offset 660) main_length), 185008#(<= (+ main_offset 672) main_length), 185009#(<= (+ main_offset 668) main_length), 185014#(<= (+ main_offset 648) main_length), 185015#(<= (+ main_offset 644) main_length), 185012#(<= (+ main_offset 656) main_length), 185013#(<= (+ main_offset 652) main_length), 185018#(<= (+ main_offset 632) main_length), 185019#(<= (+ main_offset 628) main_length), 185016#(<= (+ main_offset 640) main_length), 185017#(<= (+ main_offset 636) main_length), 185022#(<= (+ main_offset 616) main_length), 185023#(<= (+ main_offset 612) main_length), 185020#(<= (+ main_offset 624) main_length), 185021#(<= (+ main_offset 620) main_length), 185026#(<= (+ main_offset 600) main_length), 185027#(<= (+ main_offset 596) main_length), 185024#(<= (+ main_offset 608) main_length), 185025#(<= (+ main_offset 604) main_length), 185030#(<= (+ main_offset 584) main_length), 185031#(<= (+ main_offset 580) main_length), 185028#(<= (+ main_offset 592) main_length), 185029#(<= (+ main_offset 588) main_length), 185034#(<= (+ main_offset 568) main_length), 185035#(<= (+ main_offset 564) main_length), 185032#(<= (+ main_offset 576) main_length), 185033#(<= (+ main_offset 572) main_length), 185038#(<= (+ main_offset 552) main_length), 185039#(<= (+ main_offset 548) main_length), 185036#(<= (+ main_offset 560) main_length), 185037#(<= (+ main_offset 556) main_length), 185042#(<= (+ main_offset 536) main_length), 185043#(<= (+ main_offset 532) main_length), 185040#(<= (+ main_offset 544) main_length), 185041#(<= (+ main_offset 540) main_length), 185046#(<= (+ main_offset 520) main_length), 185047#(<= (+ main_offset 516) main_length), 185044#(<= (+ main_offset 528) main_length), 185045#(<= (+ main_offset 524) main_length), 185050#(<= (+ main_offset 504) main_length), 185051#(<= (+ main_offset 500) main_length), 185048#(<= (+ main_offset 512) main_length), 185049#(<= (+ main_offset 508) main_length), 185054#(<= (+ main_offset 488) main_length), 185055#(<= (+ main_offset 484) main_length), 185052#(<= (+ main_offset 496) main_length), 185053#(<= (+ main_offset 492) main_length), 185058#(<= (+ main_offset 472) main_length), 185059#(<= (+ main_offset 468) main_length), 185056#(<= (+ main_offset 480) main_length), 185057#(<= (+ main_offset 476) main_length), 185062#(<= (+ main_offset 456) main_length), 185063#(<= (+ main_offset 452) main_length), 185060#(<= (+ main_offset 464) main_length), 185061#(<= (+ main_offset 460) main_length), 185066#(<= (+ main_offset 440) main_length), 185067#(<= (+ main_offset 436) main_length), 185064#(<= (+ main_offset 448) main_length), 185065#(<= (+ main_offset 444) main_length), 185070#(<= (+ main_offset 424) main_length), 185071#(<= (+ main_offset 420) main_length), 185068#(<= (+ main_offset 432) main_length), 185069#(<= (+ main_offset 428) main_length), 185074#(<= (+ main_offset 408) main_length), 185075#(<= (+ main_offset 404) main_length), 185072#(<= (+ main_offset 416) main_length), 185073#(<= (+ main_offset 412) main_length), 185078#(<= (+ main_offset 392) main_length), 185079#(<= (+ main_offset 388) main_length), 185076#(<= (+ main_offset 400) main_length), 185077#(<= (+ main_offset 396) main_length), 185082#(<= (+ main_offset 376) main_length), 185083#(<= (+ main_offset 372) main_length), 185080#(<= (+ main_offset 384) main_length), 185081#(<= (+ main_offset 380) main_length), 185086#(<= (+ main_offset 360) main_length), 185087#(<= (+ main_offset 356) main_length), 185084#(<= (+ main_offset 368) main_length), 185085#(<= (+ main_offset 364) main_length), 185090#(<= (+ main_offset 344) main_length), 185091#(<= (+ main_offset 340) main_length), 185088#(<= (+ main_offset 352) main_length), 185089#(<= (+ main_offset 348) main_length), 185094#(<= (+ main_offset 328) main_length), 185095#(<= (+ main_offset 324) main_length), 185092#(<= (+ main_offset 336) main_length), 185093#(<= (+ main_offset 332) main_length), 185098#(<= (+ main_offset 312) main_length), 185099#(<= (+ main_offset 308) main_length), 185096#(<= (+ main_offset 320) main_length), 185097#(<= (+ main_offset 316) main_length), 185102#(<= (+ main_offset 296) main_length), 185103#(<= (+ main_offset 292) main_length), 185100#(<= (+ main_offset 304) main_length), 185101#(<= (+ main_offset 300) main_length), 185106#(<= (+ main_offset 280) main_length), 185107#(<= (+ main_offset 276) main_length), 185104#(<= (+ main_offset 288) main_length), 185105#(<= (+ main_offset 284) main_length), 185110#(<= (+ main_offset 264) main_length), 185111#(<= (+ main_offset 260) main_length), 185108#(<= (+ main_offset 272) main_length), 185109#(<= (+ main_offset 268) main_length), 185114#(<= (+ main_offset 248) main_length), 185112#(<= (+ main_offset 256) main_length), 185113#(<= (+ main_offset 252) main_length)] [2018-07-23 13:54:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 40200 backedges. 0 proven. 40200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:47,425 INFO L450 AbstractCegarLoop]: Interpolant automaton has 203 states [2018-07-23 13:54:47,427 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2018-07-23 13:54:47,428 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20503, Invalid=20503, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:54:47,428 INFO L87 Difference]: Start difference. First operand 404 states and 404 transitions. Second operand 203 states. [2018-07-23 13:54:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:49,008 INFO L93 Difference]: Finished difference Result 407 states and 407 transitions. [2018-07-23 13:54:49,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2018-07-23 13:54:49,008 INFO L78 Accepts]: Start accepts. Automaton has 203 states. Word has length 403 [2018-07-23 13:54:49,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:49,009 INFO L225 Difference]: With dead ends: 407 [2018-07-23 13:54:49,009 INFO L226 Difference]: Without dead ends: 406 [2018-07-23 13:54:49,010 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20503, Invalid=20503, Unknown=0, NotChecked=0, Total=41006 [2018-07-23 13:54:49,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2018-07-23 13:54:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2018-07-23 13:54:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2018-07-23 13:54:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 406 transitions. [2018-07-23 13:54:49,015 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 406 transitions. Word has length 403 [2018-07-23 13:54:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:49,016 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 406 transitions. [2018-07-23 13:54:49,016 INFO L472 AbstractCegarLoop]: Interpolant automaton has 203 states. [2018-07-23 13:54:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 406 transitions. [2018-07-23 13:54:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2018-07-23 13:54:49,017 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:49,017 INFO L357 BasicCegarLoop]: trace histogram [202, 201, 1, 1] [2018-07-23 13:54:49,017 INFO L414 AbstractCegarLoop]: === Iteration 202 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:49,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1206553934, now seen corresponding path program 201 times [2018-07-23 13:54:49,018 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 40602 backedges. 0 proven. 40602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,832 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:50,832 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [202] total 202 [2018-07-23 13:54:50,832 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,833 INFO L185 omatonBuilderFactory]: Interpolants [186882#(<= (+ main_offset 492) main_length), 186883#(<= (+ main_offset 488) main_length), 186880#(<= (+ main_offset 500) main_length), 186881#(<= (+ main_offset 496) main_length), 186886#(<= (+ main_offset 476) main_length), 186887#(<= (+ main_offset 472) main_length), 186884#(<= (+ main_offset 484) main_length), 186885#(<= (+ main_offset 480) main_length), 186890#(<= (+ main_offset 460) main_length), 186891#(<= (+ main_offset 456) main_length), 186888#(<= (+ main_offset 468) main_length), 186889#(<= (+ main_offset 464) main_length), 186894#(<= (+ main_offset 444) main_length), 186895#(<= (+ main_offset 440) main_length), 186892#(<= (+ main_offset 452) main_length), 186893#(<= (+ main_offset 448) main_length), 186898#(<= (+ main_offset 428) main_length), 186899#(<= (+ main_offset 424) main_length), 186896#(<= (+ main_offset 436) main_length), 186897#(<= (+ main_offset 432) main_length), 186902#(<= (+ main_offset 412) main_length), 186903#(<= (+ main_offset 408) main_length), 186900#(<= (+ main_offset 420) main_length), 186901#(<= (+ main_offset 416) main_length), 186906#(<= (+ main_offset 396) main_length), 186907#(<= (+ main_offset 392) main_length), 186904#(<= (+ main_offset 404) main_length), 186905#(<= (+ main_offset 400) main_length), 186910#(<= (+ main_offset 380) main_length), 186911#(<= (+ main_offset 376) main_length), 186908#(<= (+ main_offset 388) main_length), 186909#(<= (+ main_offset 384) main_length), 186914#(<= (+ main_offset 364) main_length), 186915#(<= (+ main_offset 360) main_length), 186912#(<= (+ main_offset 372) main_length), 186913#(<= (+ main_offset 368) main_length), 186918#(<= (+ main_offset 348) main_length), 186919#(<= (+ main_offset 344) main_length), 186916#(<= (+ main_offset 356) main_length), 186917#(<= (+ main_offset 352) main_length), 186922#(<= (+ main_offset 332) main_length), 186923#(<= (+ main_offset 328) main_length), 186920#(<= (+ main_offset 340) main_length), 186921#(<= (+ main_offset 336) main_length), 186926#(<= (+ main_offset 316) main_length), 186927#(<= (+ main_offset 312) main_length), 186924#(<= (+ main_offset 324) main_length), 186925#(<= (+ main_offset 320) main_length), 186930#(<= (+ main_offset 300) main_length), 186931#(<= (+ main_offset 296) main_length), 186928#(<= (+ main_offset 308) main_length), 186929#(<= (+ main_offset 304) main_length), 186934#(<= (+ main_offset 284) main_length), 186935#(<= (+ main_offset 280) main_length), 186932#(<= (+ main_offset 292) main_length), 186933#(<= (+ main_offset 288) main_length), 186938#(<= (+ main_offset 268) main_length), 186939#(<= (+ main_offset 264) main_length), 186936#(<= (+ main_offset 276) main_length), 186937#(<= (+ main_offset 272) main_length), 186942#(<= (+ main_offset 252) main_length), 186943#(<= (+ main_offset 248) main_length), 186940#(<= (+ main_offset 260) main_length), 186941#(<= (+ main_offset 256) main_length), 186944#(<= (+ main_offset 244) main_length), 186742#false, 186743#(<= (+ main_offset 1048) main_length), 186741#true, 186746#(<= (+ main_offset 1036) main_length), 186747#(<= (+ main_offset 1032) main_length), 186744#(<= (+ main_offset 1044) main_length), 186745#(<= (+ main_offset 1040) main_length), 186750#(<= (+ main_offset 1020) main_length), 186751#(<= (+ main_offset 1016) main_length), 186748#(<= (+ main_offset 1028) main_length), 186749#(<= (+ main_offset 1024) main_length), 186754#(<= (+ main_offset 1004) main_length), 186755#(<= (+ main_offset 1000) main_length), 186752#(<= (+ main_offset 1012) main_length), 186753#(<= (+ main_offset 1008) main_length), 186758#(<= (+ main_offset 988) main_length), 186759#(<= (+ main_offset 984) main_length), 186756#(<= (+ main_offset 996) main_length), 186757#(<= (+ main_offset 992) main_length), 186762#(<= (+ main_offset 972) main_length), 186763#(<= (+ main_offset 968) main_length), 186760#(<= (+ main_offset 980) main_length), 186761#(<= (+ main_offset 976) main_length), 186766#(<= (+ main_offset 956) main_length), 186767#(<= (+ main_offset 952) main_length), 186764#(<= (+ main_offset 964) main_length), 186765#(<= (+ main_offset 960) main_length), 186770#(<= (+ main_offset 940) main_length), 186771#(<= (+ main_offset 936) main_length), 186768#(<= (+ main_offset 948) main_length), 186769#(<= (+ main_offset 944) main_length), 186774#(<= (+ main_offset 924) main_length), 186775#(<= (+ main_offset 920) main_length), 186772#(<= (+ main_offset 932) main_length), 186773#(<= (+ main_offset 928) main_length), 186778#(<= (+ main_offset 908) main_length), 186779#(<= (+ main_offset 904) main_length), 186776#(<= (+ main_offset 916) main_length), 186777#(<= (+ main_offset 912) main_length), 186782#(<= (+ main_offset 892) main_length), 186783#(<= (+ main_offset 888) main_length), 186780#(<= (+ main_offset 900) main_length), 186781#(<= (+ main_offset 896) main_length), 186786#(<= (+ main_offset 876) main_length), 186787#(<= (+ main_offset 872) main_length), 186784#(<= (+ main_offset 884) main_length), 186785#(<= (+ main_offset 880) main_length), 186790#(<= (+ main_offset 860) main_length), 186791#(<= (+ main_offset 856) main_length), 186788#(<= (+ main_offset 868) main_length), 186789#(<= (+ main_offset 864) main_length), 186794#(<= (+ main_offset 844) main_length), 186795#(<= (+ main_offset 840) main_length), 186792#(<= (+ main_offset 852) main_length), 186793#(<= (+ main_offset 848) main_length), 186798#(<= (+ main_offset 828) main_length), 186799#(<= (+ main_offset 824) main_length), 186796#(<= (+ main_offset 836) main_length), 186797#(<= (+ main_offset 832) main_length), 186802#(<= (+ main_offset 812) main_length), 186803#(<= (+ main_offset 808) main_length), 186800#(<= (+ main_offset 820) main_length), 186801#(<= (+ main_offset 816) main_length), 186806#(<= (+ main_offset 796) main_length), 186807#(<= (+ main_offset 792) main_length), 186804#(<= (+ main_offset 804) main_length), 186805#(<= (+ main_offset 800) main_length), 186810#(<= (+ main_offset 780) main_length), 186811#(<= (+ main_offset 776) main_length), 186808#(<= (+ main_offset 788) main_length), 186809#(<= (+ main_offset 784) main_length), 186814#(<= (+ main_offset 764) main_length), 186815#(<= (+ main_offset 760) main_length), 186812#(<= (+ main_offset 772) main_length), 186813#(<= (+ main_offset 768) main_length), 186818#(<= (+ main_offset 748) main_length), 186819#(<= (+ main_offset 744) main_length), 186816#(<= (+ main_offset 756) main_length), 186817#(<= (+ main_offset 752) main_length), 186822#(<= (+ main_offset 732) main_length), 186823#(<= (+ main_offset 728) main_length), 186820#(<= (+ main_offset 740) main_length), 186821#(<= (+ main_offset 736) main_length), 186826#(<= (+ main_offset 716) main_length), 186827#(<= (+ main_offset 712) main_length), 186824#(<= (+ main_offset 724) main_length), 186825#(<= (+ main_offset 720) main_length), 186830#(<= (+ main_offset 700) main_length), 186831#(<= (+ main_offset 696) main_length), 186828#(<= (+ main_offset 708) main_length), 186829#(<= (+ main_offset 704) main_length), 186834#(<= (+ main_offset 684) main_length), 186835#(<= (+ main_offset 680) main_length), 186832#(<= (+ main_offset 692) main_length), 186833#(<= (+ main_offset 688) main_length), 186838#(<= (+ main_offset 668) main_length), 186839#(<= (+ main_offset 664) main_length), 186836#(<= (+ main_offset 676) main_length), 186837#(<= (+ main_offset 672) main_length), 186842#(<= (+ main_offset 652) main_length), 186843#(<= (+ main_offset 648) main_length), 186840#(<= (+ main_offset 660) main_length), 186841#(<= (+ main_offset 656) main_length), 186846#(<= (+ main_offset 636) main_length), 186847#(<= (+ main_offset 632) main_length), 186844#(<= (+ main_offset 644) main_length), 186845#(<= (+ main_offset 640) main_length), 186850#(<= (+ main_offset 620) main_length), 186851#(<= (+ main_offset 616) main_length), 186848#(<= (+ main_offset 628) main_length), 186849#(<= (+ main_offset 624) main_length), 186854#(<= (+ main_offset 604) main_length), 186855#(<= (+ main_offset 600) main_length), 186852#(<= (+ main_offset 612) main_length), 186853#(<= (+ main_offset 608) main_length), 186858#(<= (+ main_offset 588) main_length), 186859#(<= (+ main_offset 584) main_length), 186856#(<= (+ main_offset 596) main_length), 186857#(<= (+ main_offset 592) main_length), 186862#(<= (+ main_offset 572) main_length), 186863#(<= (+ main_offset 568) main_length), 186860#(<= (+ main_offset 580) main_length), 186861#(<= (+ main_offset 576) main_length), 186866#(<= (+ main_offset 556) main_length), 186867#(<= (+ main_offset 552) main_length), 186864#(<= (+ main_offset 564) main_length), 186865#(<= (+ main_offset 560) main_length), 186870#(<= (+ main_offset 540) main_length), 186871#(<= (+ main_offset 536) main_length), 186868#(<= (+ main_offset 548) main_length), 186869#(<= (+ main_offset 544) main_length), 186874#(<= (+ main_offset 524) main_length), 186875#(<= (+ main_offset 520) main_length), 186872#(<= (+ main_offset 532) main_length), 186873#(<= (+ main_offset 528) main_length), 186878#(<= (+ main_offset 508) main_length), 186879#(<= (+ main_offset 504) main_length), 186876#(<= (+ main_offset 516) main_length), 186877#(<= (+ main_offset 512) main_length)] [2018-07-23 13:54:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 40602 backedges. 0 proven. 40602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:50,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 204 states [2018-07-23 13:54:50,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 204 interpolants. [2018-07-23 13:54:50,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20706, Invalid=20706, Unknown=0, NotChecked=0, Total=41412 [2018-07-23 13:54:50,837 INFO L87 Difference]: Start difference. First operand 406 states and 406 transitions. Second operand 204 states. [2018-07-23 13:54:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:51,571 INFO L93 Difference]: Finished difference Result 409 states and 409 transitions. [2018-07-23 13:54:51,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2018-07-23 13:54:51,572 INFO L78 Accepts]: Start accepts. Automaton has 204 states. Word has length 405 [2018-07-23 13:54:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:51,573 INFO L225 Difference]: With dead ends: 409 [2018-07-23 13:54:51,573 INFO L226 Difference]: Without dead ends: 408 [2018-07-23 13:54:51,574 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20706, Invalid=20706, Unknown=0, NotChecked=0, Total=41412 [2018-07-23 13:54:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2018-07-23 13:54:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2018-07-23 13:54:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2018-07-23 13:54:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 408 transitions. [2018-07-23 13:54:51,581 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 408 transitions. Word has length 405 [2018-07-23 13:54:51,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:51,582 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 408 transitions. [2018-07-23 13:54:51,582 INFO L472 AbstractCegarLoop]: Interpolant automaton has 204 states. [2018-07-23 13:54:51,582 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 408 transitions. [2018-07-23 13:54:51,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2018-07-23 13:54:51,584 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:51,584 INFO L357 BasicCegarLoop]: trace histogram [203, 202, 1, 1] [2018-07-23 13:54:51,584 INFO L414 AbstractCegarLoop]: === Iteration 203 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:51,584 INFO L82 PathProgramCache]: Analyzing trace with hash 142840436, now seen corresponding path program 202 times [2018-07-23 13:54:51,584 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 41006 backedges. 0 proven. 41006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,445 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:53,445 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [203] total 203 [2018-07-23 13:54:53,446 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,447 INFO L185 omatonBuilderFactory]: Interpolants [188579#true, 188582#(<= (+ main_offset 1044) main_length), 188583#(<= (+ main_offset 1040) main_length), 188580#false, 188581#(<= (+ main_offset 1048) main_length), 188586#(<= (+ main_offset 1028) main_length), 188587#(<= (+ main_offset 1024) main_length), 188584#(<= (+ main_offset 1036) main_length), 188585#(<= (+ main_offset 1032) main_length), 188590#(<= (+ main_offset 1012) main_length), 188591#(<= (+ main_offset 1008) main_length), 188588#(<= (+ main_offset 1020) main_length), 188589#(<= (+ main_offset 1016) main_length), 188594#(<= (+ main_offset 996) main_length), 188595#(<= (+ main_offset 992) main_length), 188592#(<= (+ main_offset 1004) main_length), 188593#(<= (+ main_offset 1000) main_length), 188598#(<= (+ main_offset 980) main_length), 188599#(<= (+ main_offset 976) main_length), 188596#(<= (+ main_offset 988) main_length), 188597#(<= (+ main_offset 984) main_length), 188602#(<= (+ main_offset 964) main_length), 188603#(<= (+ main_offset 960) main_length), 188600#(<= (+ main_offset 972) main_length), 188601#(<= (+ main_offset 968) main_length), 188606#(<= (+ main_offset 948) main_length), 188607#(<= (+ main_offset 944) main_length), 188604#(<= (+ main_offset 956) main_length), 188605#(<= (+ main_offset 952) main_length), 188610#(<= (+ main_offset 932) main_length), 188611#(<= (+ main_offset 928) main_length), 188608#(<= (+ main_offset 940) main_length), 188609#(<= (+ main_offset 936) main_length), 188614#(<= (+ main_offset 916) main_length), 188615#(<= (+ main_offset 912) main_length), 188612#(<= (+ main_offset 924) main_length), 188613#(<= (+ main_offset 920) main_length), 188618#(<= (+ main_offset 900) main_length), 188619#(<= (+ main_offset 896) main_length), 188616#(<= (+ main_offset 908) main_length), 188617#(<= (+ main_offset 904) main_length), 188622#(<= (+ main_offset 884) main_length), 188623#(<= (+ main_offset 880) main_length), 188620#(<= (+ main_offset 892) main_length), 188621#(<= (+ main_offset 888) main_length), 188626#(<= (+ main_offset 868) main_length), 188627#(<= (+ main_offset 864) main_length), 188624#(<= (+ main_offset 876) main_length), 188625#(<= (+ main_offset 872) main_length), 188630#(<= (+ main_offset 852) main_length), 188631#(<= (+ main_offset 848) main_length), 188628#(<= (+ main_offset 860) main_length), 188629#(<= (+ main_offset 856) main_length), 188634#(<= (+ main_offset 836) main_length), 188635#(<= (+ main_offset 832) main_length), 188632#(<= (+ main_offset 844) main_length), 188633#(<= (+ main_offset 840) main_length), 188638#(<= (+ main_offset 820) main_length), 188639#(<= (+ main_offset 816) main_length), 188636#(<= (+ main_offset 828) main_length), 188637#(<= (+ main_offset 824) main_length), 188642#(<= (+ main_offset 804) main_length), 188643#(<= (+ main_offset 800) main_length), 188640#(<= (+ main_offset 812) main_length), 188641#(<= (+ main_offset 808) main_length), 188646#(<= (+ main_offset 788) main_length), 188647#(<= (+ main_offset 784) main_length), 188644#(<= (+ main_offset 796) main_length), 188645#(<= (+ main_offset 792) main_length), 188650#(<= (+ main_offset 772) main_length), 188651#(<= (+ main_offset 768) main_length), 188648#(<= (+ main_offset 780) main_length), 188649#(<= (+ main_offset 776) main_length), 188654#(<= (+ main_offset 756) main_length), 188655#(<= (+ main_offset 752) main_length), 188652#(<= (+ main_offset 764) main_length), 188653#(<= (+ main_offset 760) main_length), 188658#(<= (+ main_offset 740) main_length), 188659#(<= (+ main_offset 736) main_length), 188656#(<= (+ main_offset 748) main_length), 188657#(<= (+ main_offset 744) main_length), 188662#(<= (+ main_offset 724) main_length), 188663#(<= (+ main_offset 720) main_length), 188660#(<= (+ main_offset 732) main_length), 188661#(<= (+ main_offset 728) main_length), 188666#(<= (+ main_offset 708) main_length), 188667#(<= (+ main_offset 704) main_length), 188664#(<= (+ main_offset 716) main_length), 188665#(<= (+ main_offset 712) main_length), 188670#(<= (+ main_offset 692) main_length), 188671#(<= (+ main_offset 688) main_length), 188668#(<= (+ main_offset 700) main_length), 188669#(<= (+ main_offset 696) main_length), 188674#(<= (+ main_offset 676) main_length), 188675#(<= (+ main_offset 672) main_length), 188672#(<= (+ main_offset 684) main_length), 188673#(<= (+ main_offset 680) main_length), 188678#(<= (+ main_offset 660) main_length), 188679#(<= (+ main_offset 656) main_length), 188676#(<= (+ main_offset 668) main_length), 188677#(<= (+ main_offset 664) main_length), 188682#(<= (+ main_offset 644) main_length), 188683#(<= (+ main_offset 640) main_length), 188680#(<= (+ main_offset 652) main_length), 188681#(<= (+ main_offset 648) main_length), 188686#(<= (+ main_offset 628) main_length), 188687#(<= (+ main_offset 624) main_length), 188684#(<= (+ main_offset 636) main_length), 188685#(<= (+ main_offset 632) main_length), 188690#(<= (+ main_offset 612) main_length), 188691#(<= (+ main_offset 608) main_length), 188688#(<= (+ main_offset 620) main_length), 188689#(<= (+ main_offset 616) main_length), 188694#(<= (+ main_offset 596) main_length), 188695#(<= (+ main_offset 592) main_length), 188692#(<= (+ main_offset 604) main_length), 188693#(<= (+ main_offset 600) main_length), 188698#(<= (+ main_offset 580) main_length), 188699#(<= (+ main_offset 576) main_length), 188696#(<= (+ main_offset 588) main_length), 188697#(<= (+ main_offset 584) main_length), 188702#(<= (+ main_offset 564) main_length), 188703#(<= (+ main_offset 560) main_length), 188700#(<= (+ main_offset 572) main_length), 188701#(<= (+ main_offset 568) main_length), 188706#(<= (+ main_offset 548) main_length), 188707#(<= (+ main_offset 544) main_length), 188704#(<= (+ main_offset 556) main_length), 188705#(<= (+ main_offset 552) main_length), 188710#(<= (+ main_offset 532) main_length), 188711#(<= (+ main_offset 528) main_length), 188708#(<= (+ main_offset 540) main_length), 188709#(<= (+ main_offset 536) main_length), 188714#(<= (+ main_offset 516) main_length), 188715#(<= (+ main_offset 512) main_length), 188712#(<= (+ main_offset 524) main_length), 188713#(<= (+ main_offset 520) main_length), 188718#(<= (+ main_offset 500) main_length), 188719#(<= (+ main_offset 496) main_length), 188716#(<= (+ main_offset 508) main_length), 188717#(<= (+ main_offset 504) main_length), 188722#(<= (+ main_offset 484) main_length), 188723#(<= (+ main_offset 480) main_length), 188720#(<= (+ main_offset 492) main_length), 188721#(<= (+ main_offset 488) main_length), 188726#(<= (+ main_offset 468) main_length), 188727#(<= (+ main_offset 464) main_length), 188724#(<= (+ main_offset 476) main_length), 188725#(<= (+ main_offset 472) main_length), 188730#(<= (+ main_offset 452) main_length), 188731#(<= (+ main_offset 448) main_length), 188728#(<= (+ main_offset 460) main_length), 188729#(<= (+ main_offset 456) main_length), 188734#(<= (+ main_offset 436) main_length), 188735#(<= (+ main_offset 432) main_length), 188732#(<= (+ main_offset 444) main_length), 188733#(<= (+ main_offset 440) main_length), 188738#(<= (+ main_offset 420) main_length), 188739#(<= (+ main_offset 416) main_length), 188736#(<= (+ main_offset 428) main_length), 188737#(<= (+ main_offset 424) main_length), 188742#(<= (+ main_offset 404) main_length), 188743#(<= (+ main_offset 400) main_length), 188740#(<= (+ main_offset 412) main_length), 188741#(<= (+ main_offset 408) main_length), 188746#(<= (+ main_offset 388) main_length), 188747#(<= (+ main_offset 384) main_length), 188744#(<= (+ main_offset 396) main_length), 188745#(<= (+ main_offset 392) main_length), 188750#(<= (+ main_offset 372) main_length), 188751#(<= (+ main_offset 368) main_length), 188748#(<= (+ main_offset 380) main_length), 188749#(<= (+ main_offset 376) main_length), 188754#(<= (+ main_offset 356) main_length), 188755#(<= (+ main_offset 352) main_length), 188752#(<= (+ main_offset 364) main_length), 188753#(<= (+ main_offset 360) main_length), 188758#(<= (+ main_offset 340) main_length), 188759#(<= (+ main_offset 336) main_length), 188756#(<= (+ main_offset 348) main_length), 188757#(<= (+ main_offset 344) main_length), 188762#(<= (+ main_offset 324) main_length), 188763#(<= (+ main_offset 320) main_length), 188760#(<= (+ main_offset 332) main_length), 188761#(<= (+ main_offset 328) main_length), 188766#(<= (+ main_offset 308) main_length), 188767#(<= (+ main_offset 304) main_length), 188764#(<= (+ main_offset 316) main_length), 188765#(<= (+ main_offset 312) main_length), 188770#(<= (+ main_offset 292) main_length), 188771#(<= (+ main_offset 288) main_length), 188768#(<= (+ main_offset 300) main_length), 188769#(<= (+ main_offset 296) main_length), 188774#(<= (+ main_offset 276) main_length), 188775#(<= (+ main_offset 272) main_length), 188772#(<= (+ main_offset 284) main_length), 188773#(<= (+ main_offset 280) main_length), 188778#(<= (+ main_offset 260) main_length), 188779#(<= (+ main_offset 256) main_length), 188776#(<= (+ main_offset 268) main_length), 188777#(<= (+ main_offset 264) main_length), 188782#(<= (+ main_offset 244) main_length), 188783#(<= (+ main_offset 240) main_length), 188780#(<= (+ main_offset 252) main_length), 188781#(<= (+ main_offset 248) main_length)] [2018-07-23 13:54:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 41006 backedges. 0 proven. 41006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:53,450 INFO L450 AbstractCegarLoop]: Interpolant automaton has 205 states [2018-07-23 13:54:53,454 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 205 interpolants. [2018-07-23 13:54:53,457 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20910, Invalid=20910, Unknown=0, NotChecked=0, Total=41820 [2018-07-23 13:54:53,458 INFO L87 Difference]: Start difference. First operand 408 states and 408 transitions. Second operand 205 states. [2018-07-23 13:54:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:54,502 INFO L93 Difference]: Finished difference Result 411 states and 411 transitions. [2018-07-23 13:54:54,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2018-07-23 13:54:54,503 INFO L78 Accepts]: Start accepts. Automaton has 205 states. Word has length 407 [2018-07-23 13:54:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:54,503 INFO L225 Difference]: With dead ends: 411 [2018-07-23 13:54:54,503 INFO L226 Difference]: Without dead ends: 410 [2018-07-23 13:54:54,506 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20910, Invalid=20910, Unknown=0, NotChecked=0, Total=41820 [2018-07-23 13:54:54,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-07-23 13:54:54,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2018-07-23 13:54:54,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2018-07-23 13:54:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 410 transitions. [2018-07-23 13:54:54,511 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 410 transitions. Word has length 407 [2018-07-23 13:54:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:54,511 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 410 transitions. [2018-07-23 13:54:54,511 INFO L472 AbstractCegarLoop]: Interpolant automaton has 205 states. [2018-07-23 13:54:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 410 transitions. [2018-07-23 13:54:54,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-07-23 13:54:54,512 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:54,512 INFO L357 BasicCegarLoop]: trace histogram [204, 203, 1, 1] [2018-07-23 13:54:54,512 INFO L414 AbstractCegarLoop]: === Iteration 204 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:54,512 INFO L82 PathProgramCache]: Analyzing trace with hash -169293386, now seen corresponding path program 203 times [2018-07-23 13:54:54,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 41412 backedges. 0 proven. 41412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,312 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:56,313 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [204] total 204 [2018-07-23 13:54:56,313 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:56,313 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 13:54:56,313 INFO L185 omatonBuilderFactory]: Interpolants [190466#(<= (+ main_offset 896) main_length), 190467#(<= (+ main_offset 892) main_length), 190464#(<= (+ main_offset 904) main_length), 190465#(<= (+ main_offset 900) main_length), 190470#(<= (+ main_offset 880) main_length), 190471#(<= (+ main_offset 876) main_length), 190468#(<= (+ main_offset 888) main_length), 190469#(<= (+ main_offset 884) main_length), 190474#(<= (+ main_offset 864) main_length), 190475#(<= (+ main_offset 860) main_length), 190472#(<= (+ main_offset 872) main_length), 190473#(<= (+ main_offset 868) main_length), 190478#(<= (+ main_offset 848) main_length), 190479#(<= (+ main_offset 844) main_length), 190476#(<= (+ main_offset 856) main_length), 190477#(<= (+ main_offset 852) main_length), 190482#(<= (+ main_offset 832) main_length), 190483#(<= (+ main_offset 828) main_length), 190480#(<= (+ main_offset 840) main_length), 190481#(<= (+ main_offset 836) main_length), 190486#(<= (+ main_offset 816) main_length), 190487#(<= (+ main_offset 812) main_length), 190484#(<= (+ main_offset 824) main_length), 190485#(<= (+ main_offset 820) main_length), 190490#(<= (+ main_offset 800) main_length), 190491#(<= (+ main_offset 796) main_length), 190488#(<= (+ main_offset 808) main_length), 190489#(<= (+ main_offset 804) main_length), 190494#(<= (+ main_offset 784) main_length), 190495#(<= (+ main_offset 780) main_length), 190492#(<= (+ main_offset 792) main_length), 190493#(<= (+ main_offset 788) main_length), 190498#(<= (+ main_offset 768) main_length), 190499#(<= (+ main_offset 764) main_length), 190496#(<= (+ main_offset 776) main_length), 190497#(<= (+ main_offset 772) main_length), 190502#(<= (+ main_offset 752) main_length), 190503#(<= (+ main_offset 748) main_length), 190500#(<= (+ main_offset 760) main_length), 190501#(<= (+ main_offset 756) main_length), 190506#(<= (+ main_offset 736) main_length), 190507#(<= (+ main_offset 732) main_length), 190504#(<= (+ main_offset 744) main_length), 190505#(<= (+ main_offset 740) main_length), 190510#(<= (+ main_offset 720) main_length), 190511#(<= (+ main_offset 716) main_length), 190508#(<= (+ main_offset 728) main_length), 190509#(<= (+ main_offset 724) main_length), 190514#(<= (+ main_offset 704) main_length), 190515#(<= (+ main_offset 700) main_length), 190512#(<= (+ main_offset 712) main_length), 190513#(<= (+ main_offset 708) main_length), 190518#(<= (+ main_offset 688) main_length), 190519#(<= (+ main_offset 684) main_length), 190516#(<= (+ main_offset 696) main_length), 190517#(<= (+ main_offset 692) main_length), 190522#(<= (+ main_offset 672) main_length), 190523#(<= (+ main_offset 668) main_length), 190520#(<= (+ main_offset 680) main_length), 190521#(<= (+ main_offset 676) main_length), 190526#(<= (+ main_offset 656) main_length), 190527#(<= (+ main_offset 652) main_length), 190524#(<= (+ main_offset 664) main_length), 190525#(<= (+ main_offset 660) main_length), 190530#(<= (+ main_offset 640) main_length), 190531#(<= (+ main_offset 636) main_length), 190528#(<= (+ main_offset 648) main_length), 190529#(<= (+ main_offset 644) main_length), 190534#(<= (+ main_offset 624) main_length), 190535#(<= (+ main_offset 620) main_length), 190532#(<= (+ main_offset 632) main_length), 190533#(<= (+ main_offset 628) main_length), 190538#(<= (+ main_offset 608) main_length), 190539#(<= (+ main_offset 604) main_length), 190536#(<= (+ main_offset 616) main_length), 190537#(<= (+ main_offset 612) main_length), 190542#(<= (+ main_offset 592) main_length), 190543#(<= (+ main_offset 588) main_length), 190540#(<= (+ main_offset 600) main_length), 190541#(<= (+ main_offset 596) main_length), 190546#(<= (+ main_offset 576) main_length), 190547#(<= (+ main_offset 572) main_length), 190544#(<= (+ main_offset 584) main_length), 190545#(<= (+ main_offset 580) main_length), 190550#(<= (+ main_offset 560) main_length), 190551#(<= (+ main_offset 556) main_length), 190548#(<= (+ main_offset 568) main_length), 190549#(<= (+ main_offset 564) main_length), 190554#(<= (+ main_offset 544) main_length), 190555#(<= (+ main_offset 540) main_length), 190552#(<= (+ main_offset 552) main_length), 190553#(<= (+ main_offset 548) main_length), 190558#(<= (+ main_offset 528) main_length), 190559#(<= (+ main_offset 524) main_length), 190556#(<= (+ main_offset 536) main_length), 190557#(<= (+ main_offset 532) main_length), 190562#(<= (+ main_offset 512) main_length), 190563#(<= (+ main_offset 508) main_length), 190560#(<= (+ main_offset 520) main_length), 190561#(<= (+ main_offset 516) main_length), 190566#(<= (+ main_offset 496) main_length), 190567#(<= (+ main_offset 492) main_length), 190564#(<= (+ main_offset 504) main_length), 190565#(<= (+ main_offset 500) main_length), 190570#(<= (+ main_offset 480) main_length), 190571#(<= (+ main_offset 476) main_length), 190568#(<= (+ main_offset 488) main_length), 190569#(<= (+ main_offset 484) main_length), 190574#(<= (+ main_offset 464) main_length), 190575#(<= (+ main_offset 460) main_length), 190572#(<= (+ main_offset 472) main_length), 190573#(<= (+ main_offset 468) main_length), 190578#(<= (+ main_offset 448) main_length), 190579#(<= (+ main_offset 444) main_length), 190576#(<= (+ main_offset 456) main_length), 190577#(<= (+ main_offset 452) main_length), 190582#(<= (+ main_offset 432) main_length), 190583#(<= (+ main_offset 428) main_length), 190580#(<= (+ main_offset 440) main_length), 190581#(<= (+ main_offset 436) main_length), 190586#(<= (+ main_offset 416) main_length), 190587#(<= (+ main_offset 412) main_length), 190584#(<= (+ main_offset 424) main_length), 190585#(<= (+ main_offset 420) main_length), 190590#(<= (+ main_offset 400) main_length), 190591#(<= (+ main_offset 396) main_length), 190588#(<= (+ main_offset 408) main_length), 190589#(<= (+ main_offset 404) main_length), 190594#(<= (+ main_offset 384) main_length), 190595#(<= (+ main_offset 380) main_length), 190592#(<= (+ main_offset 392) main_length), 190593#(<= (+ main_offset 388) main_length), 190598#(<= (+ main_offset 368) main_length), 190599#(<= (+ main_offset 364) main_length), 190596#(<= (+ main_offset 376) main_length), 190597#(<= (+ main_offset 372) main_length), 190602#(<= (+ main_offset 352) main_length), 190603#(<= (+ main_offset 348) main_length), 190600#(<= (+ main_offset 360) main_length), 190601#(<= (+ main_offset 356) main_length), 190606#(<= (+ main_offset 336) main_length), 190607#(<= (+ main_offset 332) main_length), 190604#(<= (+ main_offset 344) main_length), 190605#(<= (+ main_offset 340) main_length), 190610#(<= (+ main_offset 320) main_length), 190611#(<= (+ main_offset 316) main_length), 190608#(<= (+ main_offset 328) main_length), 190609#(<= (+ main_offset 324) main_length), 190614#(<= (+ main_offset 304) main_length), 190615#(<= (+ main_offset 300) main_length), 190612#(<= (+ main_offset 312) main_length), 190613#(<= (+ main_offset 308) main_length), 190618#(<= (+ main_offset 288) main_length), 190619#(<= (+ main_offset 284) main_length), 190616#(<= (+ main_offset 296) main_length), 190617#(<= (+ main_offset 292) main_length), 190622#(<= (+ main_offset 272) main_length), 190623#(<= (+ main_offset 268) main_length), 190620#(<= (+ main_offset 280) main_length), 190621#(<= (+ main_offset 276) main_length), 190626#(<= (+ main_offset 256) main_length), 190627#(<= (+ main_offset 252) main_length), 190624#(<= (+ main_offset 264) main_length), 190625#(<= (+ main_offset 260) main_length), 190630#(<= (+ main_offset 240) main_length), 190631#(<= (+ main_offset 236) main_length), 190628#(<= (+ main_offset 248) main_length), 190629#(<= (+ main_offset 244) main_length), 190426#true, 190427#false, 190430#(<= (+ main_offset 1040) main_length), 190431#(<= (+ main_offset 1036) main_length), 190428#(<= (+ main_offset 1048) main_length), 190429#(<= (+ main_offset 1044) main_length), 190434#(<= (+ main_offset 1024) main_length), 190435#(<= (+ main_offset 1020) main_length), 190432#(<= (+ main_offset 1032) main_length), 190433#(<= (+ main_offset 1028) main_length), 190438#(<= (+ main_offset 1008) main_length), 190439#(<= (+ main_offset 1004) main_length), 190436#(<= (+ main_offset 1016) main_length), 190437#(<= (+ main_offset 1012) main_length), 190442#(<= (+ main_offset 992) main_length), 190443#(<= (+ main_offset 988) main_length), 190440#(<= (+ main_offset 1000) main_length), 190441#(<= (+ main_offset 996) main_length), 190446#(<= (+ main_offset 976) main_length), 190447#(<= (+ main_offset 972) main_length), 190444#(<= (+ main_offset 984) main_length), 190445#(<= (+ main_offset 980) main_length), 190450#(<= (+ main_offset 960) main_length), 190451#(<= (+ main_offset 956) main_length), 190448#(<= (+ main_offset 968) main_length), 190449#(<= (+ main_offset 964) main_length), 190454#(<= (+ main_offset 944) main_length), 190455#(<= (+ main_offset 940) main_length), 190452#(<= (+ main_offset 952) main_length), 190453#(<= (+ main_offset 948) main_length), 190458#(<= (+ main_offset 928) main_length), 190459#(<= (+ main_offset 924) main_length), 190456#(<= (+ main_offset 936) main_length), 190457#(<= (+ main_offset 932) main_length), 190462#(<= (+ main_offset 912) main_length), 190463#(<= (+ main_offset 908) main_length), 190460#(<= (+ main_offset 920) main_length), 190461#(<= (+ main_offset 916) main_length)] [2018-07-23 13:54:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 41412 backedges. 0 proven. 41412 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:56,315 INFO L450 AbstractCegarLoop]: Interpolant automaton has 206 states [2018-07-23 13:54:56,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 206 interpolants. [2018-07-23 13:54:56,320 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21115, Invalid=21115, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:54:56,320 INFO L87 Difference]: Start difference. First operand 410 states and 410 transitions. Second operand 206 states. [2018-07-23 13:54:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:54:58,078 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2018-07-23 13:54:58,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 206 states. [2018-07-23 13:54:58,078 INFO L78 Accepts]: Start accepts. Automaton has 206 states. Word has length 409 [2018-07-23 13:54:58,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:54:58,079 INFO L225 Difference]: With dead ends: 413 [2018-07-23 13:54:58,079 INFO L226 Difference]: Without dead ends: 412 [2018-07-23 13:54:58,081 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21115, Invalid=21115, Unknown=0, NotChecked=0, Total=42230 [2018-07-23 13:54:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2018-07-23 13:54:58,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2018-07-23 13:54:58,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2018-07-23 13:54:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 412 transitions. [2018-07-23 13:54:58,087 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 412 transitions. Word has length 409 [2018-07-23 13:54:58,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:54:58,087 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 412 transitions. [2018-07-23 13:54:58,087 INFO L472 AbstractCegarLoop]: Interpolant automaton has 206 states. [2018-07-23 13:54:58,087 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 412 transitions. [2018-07-23 13:54:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-07-23 13:54:58,088 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:54:58,088 INFO L357 BasicCegarLoop]: trace histogram [205, 204, 1, 1] [2018-07-23 13:54:58,089 INFO L414 AbstractCegarLoop]: === Iteration 205 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:54:58,089 INFO L82 PathProgramCache]: Analyzing trace with hash 517814392, now seen corresponding path program 204 times [2018-07-23 13:54:58,089 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:54:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:54:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 41820 backedges. 0 proven. 41820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,892 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:54:59,892 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [205] total 205 [2018-07-23 13:54:59,892 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:54:59,893 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 13:54:59,893 INFO L185 omatonBuilderFactory]: Interpolants [192282#true, 192283#false, 192286#(<= (+ main_offset 1040) main_length), 192287#(<= (+ main_offset 1036) main_length), 192284#(<= (+ main_offset 1048) main_length), 192285#(<= (+ main_offset 1044) main_length), 192290#(<= (+ main_offset 1024) main_length), 192291#(<= (+ main_offset 1020) main_length), 192288#(<= (+ main_offset 1032) main_length), 192289#(<= (+ main_offset 1028) main_length), 192294#(<= (+ main_offset 1008) main_length), 192295#(<= (+ main_offset 1004) main_length), 192292#(<= (+ main_offset 1016) main_length), 192293#(<= (+ main_offset 1012) main_length), 192298#(<= (+ main_offset 992) main_length), 192299#(<= (+ main_offset 988) main_length), 192296#(<= (+ main_offset 1000) main_length), 192297#(<= (+ main_offset 996) main_length), 192302#(<= (+ main_offset 976) main_length), 192303#(<= (+ main_offset 972) main_length), 192300#(<= (+ main_offset 984) main_length), 192301#(<= (+ main_offset 980) main_length), 192306#(<= (+ main_offset 960) main_length), 192307#(<= (+ main_offset 956) main_length), 192304#(<= (+ main_offset 968) main_length), 192305#(<= (+ main_offset 964) main_length), 192310#(<= (+ main_offset 944) main_length), 192311#(<= (+ main_offset 940) main_length), 192308#(<= (+ main_offset 952) main_length), 192309#(<= (+ main_offset 948) main_length), 192314#(<= (+ main_offset 928) main_length), 192315#(<= (+ main_offset 924) main_length), 192312#(<= (+ main_offset 936) main_length), 192313#(<= (+ main_offset 932) main_length), 192318#(<= (+ main_offset 912) main_length), 192319#(<= (+ main_offset 908) main_length), 192316#(<= (+ main_offset 920) main_length), 192317#(<= (+ main_offset 916) main_length), 192322#(<= (+ main_offset 896) main_length), 192323#(<= (+ main_offset 892) main_length), 192320#(<= (+ main_offset 904) main_length), 192321#(<= (+ main_offset 900) main_length), 192326#(<= (+ main_offset 880) main_length), 192327#(<= (+ main_offset 876) main_length), 192324#(<= (+ main_offset 888) main_length), 192325#(<= (+ main_offset 884) main_length), 192330#(<= (+ main_offset 864) main_length), 192331#(<= (+ main_offset 860) main_length), 192328#(<= (+ main_offset 872) main_length), 192329#(<= (+ main_offset 868) main_length), 192334#(<= (+ main_offset 848) main_length), 192335#(<= (+ main_offset 844) main_length), 192332#(<= (+ main_offset 856) main_length), 192333#(<= (+ main_offset 852) main_length), 192338#(<= (+ main_offset 832) main_length), 192339#(<= (+ main_offset 828) main_length), 192336#(<= (+ main_offset 840) main_length), 192337#(<= (+ main_offset 836) main_length), 192342#(<= (+ main_offset 816) main_length), 192343#(<= (+ main_offset 812) main_length), 192340#(<= (+ main_offset 824) main_length), 192341#(<= (+ main_offset 820) main_length), 192346#(<= (+ main_offset 800) main_length), 192347#(<= (+ main_offset 796) main_length), 192344#(<= (+ main_offset 808) main_length), 192345#(<= (+ main_offset 804) main_length), 192350#(<= (+ main_offset 784) main_length), 192351#(<= (+ main_offset 780) main_length), 192348#(<= (+ main_offset 792) main_length), 192349#(<= (+ main_offset 788) main_length), 192354#(<= (+ main_offset 768) main_length), 192355#(<= (+ main_offset 764) main_length), 192352#(<= (+ main_offset 776) main_length), 192353#(<= (+ main_offset 772) main_length), 192358#(<= (+ main_offset 752) main_length), 192359#(<= (+ main_offset 748) main_length), 192356#(<= (+ main_offset 760) main_length), 192357#(<= (+ main_offset 756) main_length), 192362#(<= (+ main_offset 736) main_length), 192363#(<= (+ main_offset 732) main_length), 192360#(<= (+ main_offset 744) main_length), 192361#(<= (+ main_offset 740) main_length), 192366#(<= (+ main_offset 720) main_length), 192367#(<= (+ main_offset 716) main_length), 192364#(<= (+ main_offset 728) main_length), 192365#(<= (+ main_offset 724) main_length), 192370#(<= (+ main_offset 704) main_length), 192371#(<= (+ main_offset 700) main_length), 192368#(<= (+ main_offset 712) main_length), 192369#(<= (+ main_offset 708) main_length), 192374#(<= (+ main_offset 688) main_length), 192375#(<= (+ main_offset 684) main_length), 192372#(<= (+ main_offset 696) main_length), 192373#(<= (+ main_offset 692) main_length), 192378#(<= (+ main_offset 672) main_length), 192379#(<= (+ main_offset 668) main_length), 192376#(<= (+ main_offset 680) main_length), 192377#(<= (+ main_offset 676) main_length), 192382#(<= (+ main_offset 656) main_length), 192383#(<= (+ main_offset 652) main_length), 192380#(<= (+ main_offset 664) main_length), 192381#(<= (+ main_offset 660) main_length), 192386#(<= (+ main_offset 640) main_length), 192387#(<= (+ main_offset 636) main_length), 192384#(<= (+ main_offset 648) main_length), 192385#(<= (+ main_offset 644) main_length), 192390#(<= (+ main_offset 624) main_length), 192391#(<= (+ main_offset 620) main_length), 192388#(<= (+ main_offset 632) main_length), 192389#(<= (+ main_offset 628) main_length), 192394#(<= (+ main_offset 608) main_length), 192395#(<= (+ main_offset 604) main_length), 192392#(<= (+ main_offset 616) main_length), 192393#(<= (+ main_offset 612) main_length), 192398#(<= (+ main_offset 592) main_length), 192399#(<= (+ main_offset 588) main_length), 192396#(<= (+ main_offset 600) main_length), 192397#(<= (+ main_offset 596) main_length), 192402#(<= (+ main_offset 576) main_length), 192403#(<= (+ main_offset 572) main_length), 192400#(<= (+ main_offset 584) main_length), 192401#(<= (+ main_offset 580) main_length), 192406#(<= (+ main_offset 560) main_length), 192407#(<= (+ main_offset 556) main_length), 192404#(<= (+ main_offset 568) main_length), 192405#(<= (+ main_offset 564) main_length), 192410#(<= (+ main_offset 544) main_length), 192411#(<= (+ main_offset 540) main_length), 192408#(<= (+ main_offset 552) main_length), 192409#(<= (+ main_offset 548) main_length), 192414#(<= (+ main_offset 528) main_length), 192415#(<= (+ main_offset 524) main_length), 192412#(<= (+ main_offset 536) main_length), 192413#(<= (+ main_offset 532) main_length), 192418#(<= (+ main_offset 512) main_length), 192419#(<= (+ main_offset 508) main_length), 192416#(<= (+ main_offset 520) main_length), 192417#(<= (+ main_offset 516) main_length), 192422#(<= (+ main_offset 496) main_length), 192423#(<= (+ main_offset 492) main_length), 192420#(<= (+ main_offset 504) main_length), 192421#(<= (+ main_offset 500) main_length), 192426#(<= (+ main_offset 480) main_length), 192427#(<= (+ main_offset 476) main_length), 192424#(<= (+ main_offset 488) main_length), 192425#(<= (+ main_offset 484) main_length), 192430#(<= (+ main_offset 464) main_length), 192431#(<= (+ main_offset 460) main_length), 192428#(<= (+ main_offset 472) main_length), 192429#(<= (+ main_offset 468) main_length), 192434#(<= (+ main_offset 448) main_length), 192435#(<= (+ main_offset 444) main_length), 192432#(<= (+ main_offset 456) main_length), 192433#(<= (+ main_offset 452) main_length), 192438#(<= (+ main_offset 432) main_length), 192439#(<= (+ main_offset 428) main_length), 192436#(<= (+ main_offset 440) main_length), 192437#(<= (+ main_offset 436) main_length), 192442#(<= (+ main_offset 416) main_length), 192443#(<= (+ main_offset 412) main_length), 192440#(<= (+ main_offset 424) main_length), 192441#(<= (+ main_offset 420) main_length), 192446#(<= (+ main_offset 400) main_length), 192447#(<= (+ main_offset 396) main_length), 192444#(<= (+ main_offset 408) main_length), 192445#(<= (+ main_offset 404) main_length), 192450#(<= (+ main_offset 384) main_length), 192451#(<= (+ main_offset 380) main_length), 192448#(<= (+ main_offset 392) main_length), 192449#(<= (+ main_offset 388) main_length), 192454#(<= (+ main_offset 368) main_length), 192455#(<= (+ main_offset 364) main_length), 192452#(<= (+ main_offset 376) main_length), 192453#(<= (+ main_offset 372) main_length), 192458#(<= (+ main_offset 352) main_length), 192459#(<= (+ main_offset 348) main_length), 192456#(<= (+ main_offset 360) main_length), 192457#(<= (+ main_offset 356) main_length), 192462#(<= (+ main_offset 336) main_length), 192463#(<= (+ main_offset 332) main_length), 192460#(<= (+ main_offset 344) main_length), 192461#(<= (+ main_offset 340) main_length), 192466#(<= (+ main_offset 320) main_length), 192467#(<= (+ main_offset 316) main_length), 192464#(<= (+ main_offset 328) main_length), 192465#(<= (+ main_offset 324) main_length), 192470#(<= (+ main_offset 304) main_length), 192471#(<= (+ main_offset 300) main_length), 192468#(<= (+ main_offset 312) main_length), 192469#(<= (+ main_offset 308) main_length), 192474#(<= (+ main_offset 288) main_length), 192475#(<= (+ main_offset 284) main_length), 192472#(<= (+ main_offset 296) main_length), 192473#(<= (+ main_offset 292) main_length), 192478#(<= (+ main_offset 272) main_length), 192479#(<= (+ main_offset 268) main_length), 192476#(<= (+ main_offset 280) main_length), 192477#(<= (+ main_offset 276) main_length), 192482#(<= (+ main_offset 256) main_length), 192483#(<= (+ main_offset 252) main_length), 192480#(<= (+ main_offset 264) main_length), 192481#(<= (+ main_offset 260) main_length), 192486#(<= (+ main_offset 240) main_length), 192487#(<= (+ main_offset 236) main_length), 192484#(<= (+ main_offset 248) main_length), 192485#(<= (+ main_offset 244) main_length), 192488#(<= (+ main_offset 232) main_length)] [2018-07-23 13:54:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 41820 backedges. 0 proven. 41820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:54:59,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 207 states [2018-07-23 13:54:59,897 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 207 interpolants. [2018-07-23 13:54:59,898 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21321, Invalid=21321, Unknown=0, NotChecked=0, Total=42642 [2018-07-23 13:54:59,898 INFO L87 Difference]: Start difference. First operand 412 states and 412 transitions. Second operand 207 states. [2018-07-23 13:55:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:02,127 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2018-07-23 13:55:02,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2018-07-23 13:55:02,127 INFO L78 Accepts]: Start accepts. Automaton has 207 states. Word has length 411 [2018-07-23 13:55:02,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:02,128 INFO L225 Difference]: With dead ends: 415 [2018-07-23 13:55:02,128 INFO L226 Difference]: Without dead ends: 414 [2018-07-23 13:55:02,129 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21321, Invalid=21321, Unknown=0, NotChecked=0, Total=42642 [2018-07-23 13:55:02,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2018-07-23 13:55:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2018-07-23 13:55:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2018-07-23 13:55:02,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 414 transitions. [2018-07-23 13:55:02,134 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 414 transitions. Word has length 411 [2018-07-23 13:55:02,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:02,134 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 414 transitions. [2018-07-23 13:55:02,134 INFO L472 AbstractCegarLoop]: Interpolant automaton has 207 states. [2018-07-23 13:55:02,134 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 414 transitions. [2018-07-23 13:55:02,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-07-23 13:55:02,136 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:02,136 INFO L357 BasicCegarLoop]: trace histogram [206, 205, 1, 1] [2018-07-23 13:55:02,136 INFO L414 AbstractCegarLoop]: === Iteration 206 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:02,136 INFO L82 PathProgramCache]: Analyzing trace with hash -596574534, now seen corresponding path program 205 times [2018-07-23 13:55:02,136 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 42230 backedges. 0 proven. 42230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,911 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:03,912 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [206] total 206 [2018-07-23 13:55:03,912 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,913 INFO L185 omatonBuilderFactory]: Interpolants [194147#true, 194150#(<= (+ main_offset 1044) main_length), 194151#(<= (+ main_offset 1040) main_length), 194148#false, 194149#(<= (+ main_offset 1048) main_length), 194154#(<= (+ main_offset 1028) main_length), 194155#(<= (+ main_offset 1024) main_length), 194152#(<= (+ main_offset 1036) main_length), 194153#(<= (+ main_offset 1032) main_length), 194158#(<= (+ main_offset 1012) main_length), 194159#(<= (+ main_offset 1008) main_length), 194156#(<= (+ main_offset 1020) main_length), 194157#(<= (+ main_offset 1016) main_length), 194162#(<= (+ main_offset 996) main_length), 194163#(<= (+ main_offset 992) main_length), 194160#(<= (+ main_offset 1004) main_length), 194161#(<= (+ main_offset 1000) main_length), 194166#(<= (+ main_offset 980) main_length), 194167#(<= (+ main_offset 976) main_length), 194164#(<= (+ main_offset 988) main_length), 194165#(<= (+ main_offset 984) main_length), 194170#(<= (+ main_offset 964) main_length), 194171#(<= (+ main_offset 960) main_length), 194168#(<= (+ main_offset 972) main_length), 194169#(<= (+ main_offset 968) main_length), 194174#(<= (+ main_offset 948) main_length), 194175#(<= (+ main_offset 944) main_length), 194172#(<= (+ main_offset 956) main_length), 194173#(<= (+ main_offset 952) main_length), 194178#(<= (+ main_offset 932) main_length), 194179#(<= (+ main_offset 928) main_length), 194176#(<= (+ main_offset 940) main_length), 194177#(<= (+ main_offset 936) main_length), 194182#(<= (+ main_offset 916) main_length), 194183#(<= (+ main_offset 912) main_length), 194180#(<= (+ main_offset 924) main_length), 194181#(<= (+ main_offset 920) main_length), 194186#(<= (+ main_offset 900) main_length), 194187#(<= (+ main_offset 896) main_length), 194184#(<= (+ main_offset 908) main_length), 194185#(<= (+ main_offset 904) main_length), 194190#(<= (+ main_offset 884) main_length), 194191#(<= (+ main_offset 880) main_length), 194188#(<= (+ main_offset 892) main_length), 194189#(<= (+ main_offset 888) main_length), 194194#(<= (+ main_offset 868) main_length), 194195#(<= (+ main_offset 864) main_length), 194192#(<= (+ main_offset 876) main_length), 194193#(<= (+ main_offset 872) main_length), 194198#(<= (+ main_offset 852) main_length), 194199#(<= (+ main_offset 848) main_length), 194196#(<= (+ main_offset 860) main_length), 194197#(<= (+ main_offset 856) main_length), 194202#(<= (+ main_offset 836) main_length), 194203#(<= (+ main_offset 832) main_length), 194200#(<= (+ main_offset 844) main_length), 194201#(<= (+ main_offset 840) main_length), 194206#(<= (+ main_offset 820) main_length), 194207#(<= (+ main_offset 816) main_length), 194204#(<= (+ main_offset 828) main_length), 194205#(<= (+ main_offset 824) main_length), 194210#(<= (+ main_offset 804) main_length), 194211#(<= (+ main_offset 800) main_length), 194208#(<= (+ main_offset 812) main_length), 194209#(<= (+ main_offset 808) main_length), 194214#(<= (+ main_offset 788) main_length), 194215#(<= (+ main_offset 784) main_length), 194212#(<= (+ main_offset 796) main_length), 194213#(<= (+ main_offset 792) main_length), 194218#(<= (+ main_offset 772) main_length), 194219#(<= (+ main_offset 768) main_length), 194216#(<= (+ main_offset 780) main_length), 194217#(<= (+ main_offset 776) main_length), 194222#(<= (+ main_offset 756) main_length), 194223#(<= (+ main_offset 752) main_length), 194220#(<= (+ main_offset 764) main_length), 194221#(<= (+ main_offset 760) main_length), 194226#(<= (+ main_offset 740) main_length), 194227#(<= (+ main_offset 736) main_length), 194224#(<= (+ main_offset 748) main_length), 194225#(<= (+ main_offset 744) main_length), 194230#(<= (+ main_offset 724) main_length), 194231#(<= (+ main_offset 720) main_length), 194228#(<= (+ main_offset 732) main_length), 194229#(<= (+ main_offset 728) main_length), 194234#(<= (+ main_offset 708) main_length), 194235#(<= (+ main_offset 704) main_length), 194232#(<= (+ main_offset 716) main_length), 194233#(<= (+ main_offset 712) main_length), 194238#(<= (+ main_offset 692) main_length), 194239#(<= (+ main_offset 688) main_length), 194236#(<= (+ main_offset 700) main_length), 194237#(<= (+ main_offset 696) main_length), 194242#(<= (+ main_offset 676) main_length), 194243#(<= (+ main_offset 672) main_length), 194240#(<= (+ main_offset 684) main_length), 194241#(<= (+ main_offset 680) main_length), 194246#(<= (+ main_offset 660) main_length), 194247#(<= (+ main_offset 656) main_length), 194244#(<= (+ main_offset 668) main_length), 194245#(<= (+ main_offset 664) main_length), 194250#(<= (+ main_offset 644) main_length), 194251#(<= (+ main_offset 640) main_length), 194248#(<= (+ main_offset 652) main_length), 194249#(<= (+ main_offset 648) main_length), 194254#(<= (+ main_offset 628) main_length), 194255#(<= (+ main_offset 624) main_length), 194252#(<= (+ main_offset 636) main_length), 194253#(<= (+ main_offset 632) main_length), 194258#(<= (+ main_offset 612) main_length), 194259#(<= (+ main_offset 608) main_length), 194256#(<= (+ main_offset 620) main_length), 194257#(<= (+ main_offset 616) main_length), 194262#(<= (+ main_offset 596) main_length), 194263#(<= (+ main_offset 592) main_length), 194260#(<= (+ main_offset 604) main_length), 194261#(<= (+ main_offset 600) main_length), 194266#(<= (+ main_offset 580) main_length), 194267#(<= (+ main_offset 576) main_length), 194264#(<= (+ main_offset 588) main_length), 194265#(<= (+ main_offset 584) main_length), 194270#(<= (+ main_offset 564) main_length), 194271#(<= (+ main_offset 560) main_length), 194268#(<= (+ main_offset 572) main_length), 194269#(<= (+ main_offset 568) main_length), 194274#(<= (+ main_offset 548) main_length), 194275#(<= (+ main_offset 544) main_length), 194272#(<= (+ main_offset 556) main_length), 194273#(<= (+ main_offset 552) main_length), 194278#(<= (+ main_offset 532) main_length), 194279#(<= (+ main_offset 528) main_length), 194276#(<= (+ main_offset 540) main_length), 194277#(<= (+ main_offset 536) main_length), 194282#(<= (+ main_offset 516) main_length), 194283#(<= (+ main_offset 512) main_length), 194280#(<= (+ main_offset 524) main_length), 194281#(<= (+ main_offset 520) main_length), 194286#(<= (+ main_offset 500) main_length), 194287#(<= (+ main_offset 496) main_length), 194284#(<= (+ main_offset 508) main_length), 194285#(<= (+ main_offset 504) main_length), 194290#(<= (+ main_offset 484) main_length), 194291#(<= (+ main_offset 480) main_length), 194288#(<= (+ main_offset 492) main_length), 194289#(<= (+ main_offset 488) main_length), 194294#(<= (+ main_offset 468) main_length), 194295#(<= (+ main_offset 464) main_length), 194292#(<= (+ main_offset 476) main_length), 194293#(<= (+ main_offset 472) main_length), 194298#(<= (+ main_offset 452) main_length), 194299#(<= (+ main_offset 448) main_length), 194296#(<= (+ main_offset 460) main_length), 194297#(<= (+ main_offset 456) main_length), 194302#(<= (+ main_offset 436) main_length), 194303#(<= (+ main_offset 432) main_length), 194300#(<= (+ main_offset 444) main_length), 194301#(<= (+ main_offset 440) main_length), 194306#(<= (+ main_offset 420) main_length), 194307#(<= (+ main_offset 416) main_length), 194304#(<= (+ main_offset 428) main_length), 194305#(<= (+ main_offset 424) main_length), 194310#(<= (+ main_offset 404) main_length), 194311#(<= (+ main_offset 400) main_length), 194308#(<= (+ main_offset 412) main_length), 194309#(<= (+ main_offset 408) main_length), 194314#(<= (+ main_offset 388) main_length), 194315#(<= (+ main_offset 384) main_length), 194312#(<= (+ main_offset 396) main_length), 194313#(<= (+ main_offset 392) main_length), 194318#(<= (+ main_offset 372) main_length), 194319#(<= (+ main_offset 368) main_length), 194316#(<= (+ main_offset 380) main_length), 194317#(<= (+ main_offset 376) main_length), 194322#(<= (+ main_offset 356) main_length), 194323#(<= (+ main_offset 352) main_length), 194320#(<= (+ main_offset 364) main_length), 194321#(<= (+ main_offset 360) main_length), 194326#(<= (+ main_offset 340) main_length), 194327#(<= (+ main_offset 336) main_length), 194324#(<= (+ main_offset 348) main_length), 194325#(<= (+ main_offset 344) main_length), 194330#(<= (+ main_offset 324) main_length), 194331#(<= (+ main_offset 320) main_length), 194328#(<= (+ main_offset 332) main_length), 194329#(<= (+ main_offset 328) main_length), 194334#(<= (+ main_offset 308) main_length), 194335#(<= (+ main_offset 304) main_length), 194332#(<= (+ main_offset 316) main_length), 194333#(<= (+ main_offset 312) main_length), 194338#(<= (+ main_offset 292) main_length), 194339#(<= (+ main_offset 288) main_length), 194336#(<= (+ main_offset 300) main_length), 194337#(<= (+ main_offset 296) main_length), 194342#(<= (+ main_offset 276) main_length), 194343#(<= (+ main_offset 272) main_length), 194340#(<= (+ main_offset 284) main_length), 194341#(<= (+ main_offset 280) main_length), 194346#(<= (+ main_offset 260) main_length), 194347#(<= (+ main_offset 256) main_length), 194344#(<= (+ main_offset 268) main_length), 194345#(<= (+ main_offset 264) main_length), 194350#(<= (+ main_offset 244) main_length), 194351#(<= (+ main_offset 240) main_length), 194348#(<= (+ main_offset 252) main_length), 194349#(<= (+ main_offset 248) main_length), 194354#(<= (+ main_offset 228) main_length), 194352#(<= (+ main_offset 236) main_length), 194353#(<= (+ main_offset 232) main_length)] [2018-07-23 13:55:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 42230 backedges. 0 proven. 42230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:03,915 INFO L450 AbstractCegarLoop]: Interpolant automaton has 208 states [2018-07-23 13:55:03,918 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2018-07-23 13:55:03,920 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21528, Invalid=21528, Unknown=0, NotChecked=0, Total=43056 [2018-07-23 13:55:03,920 INFO L87 Difference]: Start difference. First operand 414 states and 414 transitions. Second operand 208 states. [2018-07-23 13:55:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:05,360 INFO L93 Difference]: Finished difference Result 417 states and 417 transitions. [2018-07-23 13:55:05,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2018-07-23 13:55:05,361 INFO L78 Accepts]: Start accepts. Automaton has 208 states. Word has length 413 [2018-07-23 13:55:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:05,361 INFO L225 Difference]: With dead ends: 417 [2018-07-23 13:55:05,361 INFO L226 Difference]: Without dead ends: 416 [2018-07-23 13:55:05,362 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21528, Invalid=21528, Unknown=0, NotChecked=0, Total=43056 [2018-07-23 13:55:05,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-07-23 13:55:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2018-07-23 13:55:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2018-07-23 13:55:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 416 transitions. [2018-07-23 13:55:05,367 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 416 transitions. Word has length 413 [2018-07-23 13:55:05,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:05,367 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 416 transitions. [2018-07-23 13:55:05,367 INFO L472 AbstractCegarLoop]: Interpolant automaton has 208 states. [2018-07-23 13:55:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 416 transitions. [2018-07-23 13:55:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2018-07-23 13:55:05,368 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:05,368 INFO L357 BasicCegarLoop]: trace histogram [207, 206, 1, 1] [2018-07-23 13:55:05,368 INFO L414 AbstractCegarLoop]: === Iteration 207 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:05,369 INFO L82 PathProgramCache]: Analyzing trace with hash -2077475716, now seen corresponding path program 206 times [2018-07-23 13:55:05,369 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 42642 backedges. 0 proven. 42642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,212 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:07,212 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [207] total 207 [2018-07-23 13:55:07,213 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:07,213 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 13:55:07,213 INFO L185 omatonBuilderFactory]: Interpolants [196098#(<= (+ main_offset 748) main_length), 196099#(<= (+ main_offset 744) main_length), 196096#(<= (+ main_offset 756) main_length), 196097#(<= (+ main_offset 752) main_length), 196102#(<= (+ main_offset 732) main_length), 196103#(<= (+ main_offset 728) main_length), 196100#(<= (+ main_offset 740) main_length), 196101#(<= (+ main_offset 736) main_length), 196106#(<= (+ main_offset 716) main_length), 196107#(<= (+ main_offset 712) main_length), 196104#(<= (+ main_offset 724) main_length), 196105#(<= (+ main_offset 720) main_length), 196110#(<= (+ main_offset 700) main_length), 196111#(<= (+ main_offset 696) main_length), 196108#(<= (+ main_offset 708) main_length), 196109#(<= (+ main_offset 704) main_length), 196114#(<= (+ main_offset 684) main_length), 196115#(<= (+ main_offset 680) main_length), 196112#(<= (+ main_offset 692) main_length), 196113#(<= (+ main_offset 688) main_length), 196118#(<= (+ main_offset 668) main_length), 196119#(<= (+ main_offset 664) main_length), 196116#(<= (+ main_offset 676) main_length), 196117#(<= (+ main_offset 672) main_length), 196122#(<= (+ main_offset 652) main_length), 196123#(<= (+ main_offset 648) main_length), 196120#(<= (+ main_offset 660) main_length), 196121#(<= (+ main_offset 656) main_length), 196126#(<= (+ main_offset 636) main_length), 196127#(<= (+ main_offset 632) main_length), 196124#(<= (+ main_offset 644) main_length), 196125#(<= (+ main_offset 640) main_length), 196130#(<= (+ main_offset 620) main_length), 196131#(<= (+ main_offset 616) main_length), 196128#(<= (+ main_offset 628) main_length), 196129#(<= (+ main_offset 624) main_length), 196134#(<= (+ main_offset 604) main_length), 196135#(<= (+ main_offset 600) main_length), 196132#(<= (+ main_offset 612) main_length), 196133#(<= (+ main_offset 608) main_length), 196138#(<= (+ main_offset 588) main_length), 196139#(<= (+ main_offset 584) main_length), 196136#(<= (+ main_offset 596) main_length), 196137#(<= (+ main_offset 592) main_length), 196142#(<= (+ main_offset 572) main_length), 196143#(<= (+ main_offset 568) main_length), 196140#(<= (+ main_offset 580) main_length), 196141#(<= (+ main_offset 576) main_length), 196146#(<= (+ main_offset 556) main_length), 196147#(<= (+ main_offset 552) main_length), 196144#(<= (+ main_offset 564) main_length), 196145#(<= (+ main_offset 560) main_length), 196150#(<= (+ main_offset 540) main_length), 196151#(<= (+ main_offset 536) main_length), 196148#(<= (+ main_offset 548) main_length), 196149#(<= (+ main_offset 544) main_length), 196154#(<= (+ main_offset 524) main_length), 196155#(<= (+ main_offset 520) main_length), 196152#(<= (+ main_offset 532) main_length), 196153#(<= (+ main_offset 528) main_length), 196158#(<= (+ main_offset 508) main_length), 196159#(<= (+ main_offset 504) main_length), 196156#(<= (+ main_offset 516) main_length), 196157#(<= (+ main_offset 512) main_length), 196162#(<= (+ main_offset 492) main_length), 196163#(<= (+ main_offset 488) main_length), 196160#(<= (+ main_offset 500) main_length), 196161#(<= (+ main_offset 496) main_length), 196166#(<= (+ main_offset 476) main_length), 196167#(<= (+ main_offset 472) main_length), 196164#(<= (+ main_offset 484) main_length), 196165#(<= (+ main_offset 480) main_length), 196170#(<= (+ main_offset 460) main_length), 196171#(<= (+ main_offset 456) main_length), 196168#(<= (+ main_offset 468) main_length), 196169#(<= (+ main_offset 464) main_length), 196174#(<= (+ main_offset 444) main_length), 196175#(<= (+ main_offset 440) main_length), 196172#(<= (+ main_offset 452) main_length), 196173#(<= (+ main_offset 448) main_length), 196178#(<= (+ main_offset 428) main_length), 196179#(<= (+ main_offset 424) main_length), 196176#(<= (+ main_offset 436) main_length), 196177#(<= (+ main_offset 432) main_length), 196182#(<= (+ main_offset 412) main_length), 196183#(<= (+ main_offset 408) main_length), 196180#(<= (+ main_offset 420) main_length), 196181#(<= (+ main_offset 416) main_length), 196186#(<= (+ main_offset 396) main_length), 196187#(<= (+ main_offset 392) main_length), 196184#(<= (+ main_offset 404) main_length), 196185#(<= (+ main_offset 400) main_length), 196190#(<= (+ main_offset 380) main_length), 196191#(<= (+ main_offset 376) main_length), 196188#(<= (+ main_offset 388) main_length), 196189#(<= (+ main_offset 384) main_length), 196194#(<= (+ main_offset 364) main_length), 196195#(<= (+ main_offset 360) main_length), 196192#(<= (+ main_offset 372) main_length), 196193#(<= (+ main_offset 368) main_length), 196198#(<= (+ main_offset 348) main_length), 196199#(<= (+ main_offset 344) main_length), 196196#(<= (+ main_offset 356) main_length), 196197#(<= (+ main_offset 352) main_length), 196202#(<= (+ main_offset 332) main_length), 196203#(<= (+ main_offset 328) main_length), 196200#(<= (+ main_offset 340) main_length), 196201#(<= (+ main_offset 336) main_length), 196206#(<= (+ main_offset 316) main_length), 196207#(<= (+ main_offset 312) main_length), 196204#(<= (+ main_offset 324) main_length), 196205#(<= (+ main_offset 320) main_length), 196210#(<= (+ main_offset 300) main_length), 196211#(<= (+ main_offset 296) main_length), 196208#(<= (+ main_offset 308) main_length), 196209#(<= (+ main_offset 304) main_length), 196214#(<= (+ main_offset 284) main_length), 196215#(<= (+ main_offset 280) main_length), 196212#(<= (+ main_offset 292) main_length), 196213#(<= (+ main_offset 288) main_length), 196218#(<= (+ main_offset 268) main_length), 196219#(<= (+ main_offset 264) main_length), 196216#(<= (+ main_offset 276) main_length), 196217#(<= (+ main_offset 272) main_length), 196222#(<= (+ main_offset 252) main_length), 196223#(<= (+ main_offset 248) main_length), 196220#(<= (+ main_offset 260) main_length), 196221#(<= (+ main_offset 256) main_length), 196226#(<= (+ main_offset 236) main_length), 196227#(<= (+ main_offset 232) main_length), 196224#(<= (+ main_offset 244) main_length), 196225#(<= (+ main_offset 240) main_length), 196228#(<= (+ main_offset 228) main_length), 196229#(<= (+ main_offset 224) main_length), 196022#false, 196023#(<= (+ main_offset 1048) main_length), 196021#true, 196026#(<= (+ main_offset 1036) main_length), 196027#(<= (+ main_offset 1032) main_length), 196024#(<= (+ main_offset 1044) main_length), 196025#(<= (+ main_offset 1040) main_length), 196030#(<= (+ main_offset 1020) main_length), 196031#(<= (+ main_offset 1016) main_length), 196028#(<= (+ main_offset 1028) main_length), 196029#(<= (+ main_offset 1024) main_length), 196034#(<= (+ main_offset 1004) main_length), 196035#(<= (+ main_offset 1000) main_length), 196032#(<= (+ main_offset 1012) main_length), 196033#(<= (+ main_offset 1008) main_length), 196038#(<= (+ main_offset 988) main_length), 196039#(<= (+ main_offset 984) main_length), 196036#(<= (+ main_offset 996) main_length), 196037#(<= (+ main_offset 992) main_length), 196042#(<= (+ main_offset 972) main_length), 196043#(<= (+ main_offset 968) main_length), 196040#(<= (+ main_offset 980) main_length), 196041#(<= (+ main_offset 976) main_length), 196046#(<= (+ main_offset 956) main_length), 196047#(<= (+ main_offset 952) main_length), 196044#(<= (+ main_offset 964) main_length), 196045#(<= (+ main_offset 960) main_length), 196050#(<= (+ main_offset 940) main_length), 196051#(<= (+ main_offset 936) main_length), 196048#(<= (+ main_offset 948) main_length), 196049#(<= (+ main_offset 944) main_length), 196054#(<= (+ main_offset 924) main_length), 196055#(<= (+ main_offset 920) main_length), 196052#(<= (+ main_offset 932) main_length), 196053#(<= (+ main_offset 928) main_length), 196058#(<= (+ main_offset 908) main_length), 196059#(<= (+ main_offset 904) main_length), 196056#(<= (+ main_offset 916) main_length), 196057#(<= (+ main_offset 912) main_length), 196062#(<= (+ main_offset 892) main_length), 196063#(<= (+ main_offset 888) main_length), 196060#(<= (+ main_offset 900) main_length), 196061#(<= (+ main_offset 896) main_length), 196066#(<= (+ main_offset 876) main_length), 196067#(<= (+ main_offset 872) main_length), 196064#(<= (+ main_offset 884) main_length), 196065#(<= (+ main_offset 880) main_length), 196070#(<= (+ main_offset 860) main_length), 196071#(<= (+ main_offset 856) main_length), 196068#(<= (+ main_offset 868) main_length), 196069#(<= (+ main_offset 864) main_length), 196074#(<= (+ main_offset 844) main_length), 196075#(<= (+ main_offset 840) main_length), 196072#(<= (+ main_offset 852) main_length), 196073#(<= (+ main_offset 848) main_length), 196078#(<= (+ main_offset 828) main_length), 196079#(<= (+ main_offset 824) main_length), 196076#(<= (+ main_offset 836) main_length), 196077#(<= (+ main_offset 832) main_length), 196082#(<= (+ main_offset 812) main_length), 196083#(<= (+ main_offset 808) main_length), 196080#(<= (+ main_offset 820) main_length), 196081#(<= (+ main_offset 816) main_length), 196086#(<= (+ main_offset 796) main_length), 196087#(<= (+ main_offset 792) main_length), 196084#(<= (+ main_offset 804) main_length), 196085#(<= (+ main_offset 800) main_length), 196090#(<= (+ main_offset 780) main_length), 196091#(<= (+ main_offset 776) main_length), 196088#(<= (+ main_offset 788) main_length), 196089#(<= (+ main_offset 784) main_length), 196094#(<= (+ main_offset 764) main_length), 196095#(<= (+ main_offset 760) main_length), 196092#(<= (+ main_offset 772) main_length), 196093#(<= (+ main_offset 768) main_length)] [2018-07-23 13:55:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 42642 backedges. 0 proven. 42642 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:07,216 INFO L450 AbstractCegarLoop]: Interpolant automaton has 209 states [2018-07-23 13:55:07,219 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2018-07-23 13:55:07,221 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21736, Invalid=21736, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:55:07,222 INFO L87 Difference]: Start difference. First operand 416 states and 416 transitions. Second operand 209 states. [2018-07-23 13:55:08,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:08,331 INFO L93 Difference]: Finished difference Result 419 states and 419 transitions. [2018-07-23 13:55:08,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2018-07-23 13:55:08,331 INFO L78 Accepts]: Start accepts. Automaton has 209 states. Word has length 415 [2018-07-23 13:55:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:08,332 INFO L225 Difference]: With dead ends: 419 [2018-07-23 13:55:08,332 INFO L226 Difference]: Without dead ends: 418 [2018-07-23 13:55:08,334 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21736, Invalid=21736, Unknown=0, NotChecked=0, Total=43472 [2018-07-23 13:55:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2018-07-23 13:55:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2018-07-23 13:55:08,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-07-23 13:55:08,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 418 transitions. [2018-07-23 13:55:08,339 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 418 transitions. Word has length 415 [2018-07-23 13:55:08,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:08,340 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 418 transitions. [2018-07-23 13:55:08,340 INFO L472 AbstractCegarLoop]: Interpolant automaton has 209 states. [2018-07-23 13:55:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 418 transitions. [2018-07-23 13:55:08,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2018-07-23 13:55:08,341 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:08,341 INFO L357 BasicCegarLoop]: trace histogram [208, 207, 1, 1] [2018-07-23 13:55:08,341 INFO L414 AbstractCegarLoop]: === Iteration 208 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 705630654, now seen corresponding path program 207 times [2018-07-23 13:55:08,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 43056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,178 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:10,178 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [208] total 208 [2018-07-23 13:55:10,178 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:10,178 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 13:55:10,179 INFO L185 omatonBuilderFactory]: Interpolants [197907#(<= (+ main_offset 1044) main_length), 197906#(<= (+ main_offset 1048) main_length), 197905#false, 197904#true, 197911#(<= (+ main_offset 1028) main_length), 197910#(<= (+ main_offset 1032) main_length), 197909#(<= (+ main_offset 1036) main_length), 197908#(<= (+ main_offset 1040) main_length), 197915#(<= (+ main_offset 1012) main_length), 197914#(<= (+ main_offset 1016) main_length), 197913#(<= (+ main_offset 1020) main_length), 197912#(<= (+ main_offset 1024) main_length), 197919#(<= (+ main_offset 996) main_length), 197918#(<= (+ main_offset 1000) main_length), 197917#(<= (+ main_offset 1004) main_length), 197916#(<= (+ main_offset 1008) main_length), 197923#(<= (+ main_offset 980) main_length), 197922#(<= (+ main_offset 984) main_length), 197921#(<= (+ main_offset 988) main_length), 197920#(<= (+ main_offset 992) main_length), 197927#(<= (+ main_offset 964) main_length), 197926#(<= (+ main_offset 968) main_length), 197925#(<= (+ main_offset 972) main_length), 197924#(<= (+ main_offset 976) main_length), 197931#(<= (+ main_offset 948) main_length), 197930#(<= (+ main_offset 952) main_length), 197929#(<= (+ main_offset 956) main_length), 197928#(<= (+ main_offset 960) main_length), 197935#(<= (+ main_offset 932) main_length), 197934#(<= (+ main_offset 936) main_length), 197933#(<= (+ main_offset 940) main_length), 197932#(<= (+ main_offset 944) main_length), 197939#(<= (+ main_offset 916) main_length), 197938#(<= (+ main_offset 920) main_length), 197937#(<= (+ main_offset 924) main_length), 197936#(<= (+ main_offset 928) main_length), 197943#(<= (+ main_offset 900) main_length), 197942#(<= (+ main_offset 904) main_length), 197941#(<= (+ main_offset 908) main_length), 197940#(<= (+ main_offset 912) main_length), 197947#(<= (+ main_offset 884) main_length), 197946#(<= (+ main_offset 888) main_length), 197945#(<= (+ main_offset 892) main_length), 197944#(<= (+ main_offset 896) main_length), 197951#(<= (+ main_offset 868) main_length), 197950#(<= (+ main_offset 872) main_length), 197949#(<= (+ main_offset 876) main_length), 197948#(<= (+ main_offset 880) main_length), 197955#(<= (+ main_offset 852) main_length), 197954#(<= (+ main_offset 856) main_length), 197953#(<= (+ main_offset 860) main_length), 197952#(<= (+ main_offset 864) main_length), 197959#(<= (+ main_offset 836) main_length), 197958#(<= (+ main_offset 840) main_length), 197957#(<= (+ main_offset 844) main_length), 197956#(<= (+ main_offset 848) main_length), 197963#(<= (+ main_offset 820) main_length), 197962#(<= (+ main_offset 824) main_length), 197961#(<= (+ main_offset 828) main_length), 197960#(<= (+ main_offset 832) main_length), 197967#(<= (+ main_offset 804) main_length), 197966#(<= (+ main_offset 808) main_length), 197965#(<= (+ main_offset 812) main_length), 197964#(<= (+ main_offset 816) main_length), 197971#(<= (+ main_offset 788) main_length), 197970#(<= (+ main_offset 792) main_length), 197969#(<= (+ main_offset 796) main_length), 197968#(<= (+ main_offset 800) main_length), 197975#(<= (+ main_offset 772) main_length), 197974#(<= (+ main_offset 776) main_length), 197973#(<= (+ main_offset 780) main_length), 197972#(<= (+ main_offset 784) main_length), 197979#(<= (+ main_offset 756) main_length), 197978#(<= (+ main_offset 760) main_length), 197977#(<= (+ main_offset 764) main_length), 197976#(<= (+ main_offset 768) main_length), 197983#(<= (+ main_offset 740) main_length), 197982#(<= (+ main_offset 744) main_length), 197981#(<= (+ main_offset 748) main_length), 197980#(<= (+ main_offset 752) main_length), 197987#(<= (+ main_offset 724) main_length), 197986#(<= (+ main_offset 728) main_length), 197985#(<= (+ main_offset 732) main_length), 197984#(<= (+ main_offset 736) main_length), 197991#(<= (+ main_offset 708) main_length), 197990#(<= (+ main_offset 712) main_length), 197989#(<= (+ main_offset 716) main_length), 197988#(<= (+ main_offset 720) main_length), 197995#(<= (+ main_offset 692) main_length), 197994#(<= (+ main_offset 696) main_length), 197993#(<= (+ main_offset 700) main_length), 197992#(<= (+ main_offset 704) main_length), 197999#(<= (+ main_offset 676) main_length), 197998#(<= (+ main_offset 680) main_length), 197997#(<= (+ main_offset 684) main_length), 197996#(<= (+ main_offset 688) main_length), 198003#(<= (+ main_offset 660) main_length), 198002#(<= (+ main_offset 664) main_length), 198001#(<= (+ main_offset 668) main_length), 198000#(<= (+ main_offset 672) main_length), 198007#(<= (+ main_offset 644) main_length), 198006#(<= (+ main_offset 648) main_length), 198005#(<= (+ main_offset 652) main_length), 198004#(<= (+ main_offset 656) main_length), 198011#(<= (+ main_offset 628) main_length), 198010#(<= (+ main_offset 632) main_length), 198009#(<= (+ main_offset 636) main_length), 198008#(<= (+ main_offset 640) main_length), 198015#(<= (+ main_offset 612) main_length), 198014#(<= (+ main_offset 616) main_length), 198013#(<= (+ main_offset 620) main_length), 198012#(<= (+ main_offset 624) main_length), 198019#(<= (+ main_offset 596) main_length), 198018#(<= (+ main_offset 600) main_length), 198017#(<= (+ main_offset 604) main_length), 198016#(<= (+ main_offset 608) main_length), 198023#(<= (+ main_offset 580) main_length), 198022#(<= (+ main_offset 584) main_length), 198021#(<= (+ main_offset 588) main_length), 198020#(<= (+ main_offset 592) main_length), 198027#(<= (+ main_offset 564) main_length), 198026#(<= (+ main_offset 568) main_length), 198025#(<= (+ main_offset 572) main_length), 198024#(<= (+ main_offset 576) main_length), 198031#(<= (+ main_offset 548) main_length), 198030#(<= (+ main_offset 552) main_length), 198029#(<= (+ main_offset 556) main_length), 198028#(<= (+ main_offset 560) main_length), 198035#(<= (+ main_offset 532) main_length), 198034#(<= (+ main_offset 536) main_length), 198033#(<= (+ main_offset 540) main_length), 198032#(<= (+ main_offset 544) main_length), 198039#(<= (+ main_offset 516) main_length), 198038#(<= (+ main_offset 520) main_length), 198037#(<= (+ main_offset 524) main_length), 198036#(<= (+ main_offset 528) main_length), 198043#(<= (+ main_offset 500) main_length), 198042#(<= (+ main_offset 504) main_length), 198041#(<= (+ main_offset 508) main_length), 198040#(<= (+ main_offset 512) main_length), 198047#(<= (+ main_offset 484) main_length), 198046#(<= (+ main_offset 488) main_length), 198045#(<= (+ main_offset 492) main_length), 198044#(<= (+ main_offset 496) main_length), 198051#(<= (+ main_offset 468) main_length), 198050#(<= (+ main_offset 472) main_length), 198049#(<= (+ main_offset 476) main_length), 198048#(<= (+ main_offset 480) main_length), 198055#(<= (+ main_offset 452) main_length), 198054#(<= (+ main_offset 456) main_length), 198053#(<= (+ main_offset 460) main_length), 198052#(<= (+ main_offset 464) main_length), 198059#(<= (+ main_offset 436) main_length), 198058#(<= (+ main_offset 440) main_length), 198057#(<= (+ main_offset 444) main_length), 198056#(<= (+ main_offset 448) main_length), 198063#(<= (+ main_offset 420) main_length), 198062#(<= (+ main_offset 424) main_length), 198061#(<= (+ main_offset 428) main_length), 198060#(<= (+ main_offset 432) main_length), 198067#(<= (+ main_offset 404) main_length), 198066#(<= (+ main_offset 408) main_length), 198065#(<= (+ main_offset 412) main_length), 198064#(<= (+ main_offset 416) main_length), 198071#(<= (+ main_offset 388) main_length), 198070#(<= (+ main_offset 392) main_length), 198069#(<= (+ main_offset 396) main_length), 198068#(<= (+ main_offset 400) main_length), 198075#(<= (+ main_offset 372) main_length), 198074#(<= (+ main_offset 376) main_length), 198073#(<= (+ main_offset 380) main_length), 198072#(<= (+ main_offset 384) main_length), 198079#(<= (+ main_offset 356) main_length), 198078#(<= (+ main_offset 360) main_length), 198077#(<= (+ main_offset 364) main_length), 198076#(<= (+ main_offset 368) main_length), 198083#(<= (+ main_offset 340) main_length), 198082#(<= (+ main_offset 344) main_length), 198081#(<= (+ main_offset 348) main_length), 198080#(<= (+ main_offset 352) main_length), 198087#(<= (+ main_offset 324) main_length), 198086#(<= (+ main_offset 328) main_length), 198085#(<= (+ main_offset 332) main_length), 198084#(<= (+ main_offset 336) main_length), 198091#(<= (+ main_offset 308) main_length), 198090#(<= (+ main_offset 312) main_length), 198089#(<= (+ main_offset 316) main_length), 198088#(<= (+ main_offset 320) main_length), 198095#(<= (+ main_offset 292) main_length), 198094#(<= (+ main_offset 296) main_length), 198093#(<= (+ main_offset 300) main_length), 198092#(<= (+ main_offset 304) main_length), 198099#(<= (+ main_offset 276) main_length), 198098#(<= (+ main_offset 280) main_length), 198097#(<= (+ main_offset 284) main_length), 198096#(<= (+ main_offset 288) main_length), 198103#(<= (+ main_offset 260) main_length), 198102#(<= (+ main_offset 264) main_length), 198101#(<= (+ main_offset 268) main_length), 198100#(<= (+ main_offset 272) main_length), 198107#(<= (+ main_offset 244) main_length), 198106#(<= (+ main_offset 248) main_length), 198105#(<= (+ main_offset 252) main_length), 198104#(<= (+ main_offset 256) main_length), 198111#(<= (+ main_offset 228) main_length), 198110#(<= (+ main_offset 232) main_length), 198109#(<= (+ main_offset 236) main_length), 198108#(<= (+ main_offset 240) main_length), 198113#(<= (+ main_offset 220) main_length), 198112#(<= (+ main_offset 224) main_length)] [2018-07-23 13:55:10,180 INFO L134 CoverageAnalysis]: Checked inductivity of 43056 backedges. 0 proven. 43056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:10,181 INFO L450 AbstractCegarLoop]: Interpolant automaton has 210 states [2018-07-23 13:55:10,183 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 210 interpolants. [2018-07-23 13:55:10,184 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21945, Invalid=21945, Unknown=0, NotChecked=0, Total=43890 [2018-07-23 13:55:10,185 INFO L87 Difference]: Start difference. First operand 418 states and 418 transitions. Second operand 210 states. [2018-07-23 13:55:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:12,694 INFO L93 Difference]: Finished difference Result 421 states and 421 transitions. [2018-07-23 13:55:12,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2018-07-23 13:55:12,694 INFO L78 Accepts]: Start accepts. Automaton has 210 states. Word has length 417 [2018-07-23 13:55:12,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:12,695 INFO L225 Difference]: With dead ends: 421 [2018-07-23 13:55:12,695 INFO L226 Difference]: Without dead ends: 420 [2018-07-23 13:55:12,697 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=21945, Invalid=21945, Unknown=0, NotChecked=0, Total=43890 [2018-07-23 13:55:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2018-07-23 13:55:12,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2018-07-23 13:55:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 420 states. [2018-07-23 13:55:12,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 420 transitions. [2018-07-23 13:55:12,702 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 420 transitions. Word has length 417 [2018-07-23 13:55:12,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:12,702 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 420 transitions. [2018-07-23 13:55:12,702 INFO L472 AbstractCegarLoop]: Interpolant automaton has 210 states. [2018-07-23 13:55:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 420 transitions. [2018-07-23 13:55:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2018-07-23 13:55:12,704 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:12,704 INFO L357 BasicCegarLoop]: trace histogram [209, 208, 1, 1] [2018-07-23 13:55:12,704 INFO L414 AbstractCegarLoop]: === Iteration 209 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:12,704 INFO L82 PathProgramCache]: Analyzing trace with hash -493773184, now seen corresponding path program 208 times [2018-07-23 13:55:12,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:14,547 INFO L134 CoverageAnalysis]: Checked inductivity of 43472 backedges. 0 proven. 43472 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,547 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:14,548 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [209] total 209 [2018-07-23 13:55:14,548 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,548 INFO L185 omatonBuilderFactory]: Interpolants [199799#(<= (+ main_offset 1044) main_length), 199798#(<= (+ main_offset 1048) main_length), 199797#false, 199796#true, 199803#(<= (+ main_offset 1028) main_length), 199802#(<= (+ main_offset 1032) main_length), 199801#(<= (+ main_offset 1036) main_length), 199800#(<= (+ main_offset 1040) main_length), 199807#(<= (+ main_offset 1012) main_length), 199806#(<= (+ main_offset 1016) main_length), 199805#(<= (+ main_offset 1020) main_length), 199804#(<= (+ main_offset 1024) main_length), 199811#(<= (+ main_offset 996) main_length), 199810#(<= (+ main_offset 1000) main_length), 199809#(<= (+ main_offset 1004) main_length), 199808#(<= (+ main_offset 1008) main_length), 199815#(<= (+ main_offset 980) main_length), 199814#(<= (+ main_offset 984) main_length), 199813#(<= (+ main_offset 988) main_length), 199812#(<= (+ main_offset 992) main_length), 199819#(<= (+ main_offset 964) main_length), 199818#(<= (+ main_offset 968) main_length), 199817#(<= (+ main_offset 972) main_length), 199816#(<= (+ main_offset 976) main_length), 199823#(<= (+ main_offset 948) main_length), 199822#(<= (+ main_offset 952) main_length), 199821#(<= (+ main_offset 956) main_length), 199820#(<= (+ main_offset 960) main_length), 199827#(<= (+ main_offset 932) main_length), 199826#(<= (+ main_offset 936) main_length), 199825#(<= (+ main_offset 940) main_length), 199824#(<= (+ main_offset 944) main_length), 199831#(<= (+ main_offset 916) main_length), 199830#(<= (+ main_offset 920) main_length), 199829#(<= (+ main_offset 924) main_length), 199828#(<= (+ main_offset 928) main_length), 199835#(<= (+ main_offset 900) main_length), 199834#(<= (+ main_offset 904) main_length), 199833#(<= (+ main_offset 908) main_length), 199832#(<= (+ main_offset 912) main_length), 199839#(<= (+ main_offset 884) main_length), 199838#(<= (+ main_offset 888) main_length), 199837#(<= (+ main_offset 892) main_length), 199836#(<= (+ main_offset 896) main_length), 199843#(<= (+ main_offset 868) main_length), 199842#(<= (+ main_offset 872) main_length), 199841#(<= (+ main_offset 876) main_length), 199840#(<= (+ main_offset 880) main_length), 199847#(<= (+ main_offset 852) main_length), 199846#(<= (+ main_offset 856) main_length), 199845#(<= (+ main_offset 860) main_length), 199844#(<= (+ main_offset 864) main_length), 199851#(<= (+ main_offset 836) main_length), 199850#(<= (+ main_offset 840) main_length), 199849#(<= (+ main_offset 844) main_length), 199848#(<= (+ main_offset 848) main_length), 199855#(<= (+ main_offset 820) main_length), 199854#(<= (+ main_offset 824) main_length), 199853#(<= (+ main_offset 828) main_length), 199852#(<= (+ main_offset 832) main_length), 199859#(<= (+ main_offset 804) main_length), 199858#(<= (+ main_offset 808) main_length), 199857#(<= (+ main_offset 812) main_length), 199856#(<= (+ main_offset 816) main_length), 199863#(<= (+ main_offset 788) main_length), 199862#(<= (+ main_offset 792) main_length), 199861#(<= (+ main_offset 796) main_length), 199860#(<= (+ main_offset 800) main_length), 199867#(<= (+ main_offset 772) main_length), 199866#(<= (+ main_offset 776) main_length), 199865#(<= (+ main_offset 780) main_length), 199864#(<= (+ main_offset 784) main_length), 199871#(<= (+ main_offset 756) main_length), 199870#(<= (+ main_offset 760) main_length), 199869#(<= (+ main_offset 764) main_length), 199868#(<= (+ main_offset 768) main_length), 199875#(<= (+ main_offset 740) main_length), 199874#(<= (+ main_offset 744) main_length), 199873#(<= (+ main_offset 748) main_length), 199872#(<= (+ main_offset 752) main_length), 199879#(<= (+ main_offset 724) main_length), 199878#(<= (+ main_offset 728) main_length), 199877#(<= (+ main_offset 732) main_length), 199876#(<= (+ main_offset 736) main_length), 199883#(<= (+ main_offset 708) main_length), 199882#(<= (+ main_offset 712) main_length), 199881#(<= (+ main_offset 716) main_length), 199880#(<= (+ main_offset 720) main_length), 199887#(<= (+ main_offset 692) main_length), 199886#(<= (+ main_offset 696) main_length), 199885#(<= (+ main_offset 700) main_length), 199884#(<= (+ main_offset 704) main_length), 199891#(<= (+ main_offset 676) main_length), 199890#(<= (+ main_offset 680) main_length), 199889#(<= (+ main_offset 684) main_length), 199888#(<= (+ main_offset 688) main_length), 199895#(<= (+ main_offset 660) main_length), 199894#(<= (+ main_offset 664) main_length), 199893#(<= (+ main_offset 668) main_length), 199892#(<= (+ main_offset 672) main_length), 199899#(<= (+ main_offset 644) main_length), 199898#(<= (+ main_offset 648) main_length), 199897#(<= (+ main_offset 652) main_length), 199896#(<= (+ main_offset 656) main_length), 199903#(<= (+ main_offset 628) main_length), 199902#(<= (+ main_offset 632) main_length), 199901#(<= (+ main_offset 636) main_length), 199900#(<= (+ main_offset 640) main_length), 199907#(<= (+ main_offset 612) main_length), 199906#(<= (+ main_offset 616) main_length), 199905#(<= (+ main_offset 620) main_length), 199904#(<= (+ main_offset 624) main_length), 199911#(<= (+ main_offset 596) main_length), 199910#(<= (+ main_offset 600) main_length), 199909#(<= (+ main_offset 604) main_length), 199908#(<= (+ main_offset 608) main_length), 199915#(<= (+ main_offset 580) main_length), 199914#(<= (+ main_offset 584) main_length), 199913#(<= (+ main_offset 588) main_length), 199912#(<= (+ main_offset 592) main_length), 199919#(<= (+ main_offset 564) main_length), 199918#(<= (+ main_offset 568) main_length), 199917#(<= (+ main_offset 572) main_length), 199916#(<= (+ main_offset 576) main_length), 199923#(<= (+ main_offset 548) main_length), 199922#(<= (+ main_offset 552) main_length), 199921#(<= (+ main_offset 556) main_length), 199920#(<= (+ main_offset 560) main_length), 199927#(<= (+ main_offset 532) main_length), 199926#(<= (+ main_offset 536) main_length), 199925#(<= (+ main_offset 540) main_length), 199924#(<= (+ main_offset 544) main_length), 199931#(<= (+ main_offset 516) main_length), 199930#(<= (+ main_offset 520) main_length), 199929#(<= (+ main_offset 524) main_length), 199928#(<= (+ main_offset 528) main_length), 199935#(<= (+ main_offset 500) main_length), 199934#(<= (+ main_offset 504) main_length), 199933#(<= (+ main_offset 508) main_length), 199932#(<= (+ main_offset 512) main_length), 199939#(<= (+ main_offset 484) main_length), 199938#(<= (+ main_offset 488) main_length), 199937#(<= (+ main_offset 492) main_length), 199936#(<= (+ main_offset 496) main_length), 199943#(<= (+ main_offset 468) main_length), 199942#(<= (+ main_offset 472) main_length), 199941#(<= (+ main_offset 476) main_length), 199940#(<= (+ main_offset 480) main_length), 199947#(<= (+ main_offset 452) main_length), 199946#(<= (+ main_offset 456) main_length), 199945#(<= (+ main_offset 460) main_length), 199944#(<= (+ main_offset 464) main_length), 199951#(<= (+ main_offset 436) main_length), 199950#(<= (+ main_offset 440) main_length), 199949#(<= (+ main_offset 444) main_length), 199948#(<= (+ main_offset 448) main_length), 199955#(<= (+ main_offset 420) main_length), 199954#(<= (+ main_offset 424) main_length), 199953#(<= (+ main_offset 428) main_length), 199952#(<= (+ main_offset 432) main_length), 199959#(<= (+ main_offset 404) main_length), 199958#(<= (+ main_offset 408) main_length), 199957#(<= (+ main_offset 412) main_length), 199956#(<= (+ main_offset 416) main_length), 199963#(<= (+ main_offset 388) main_length), 199962#(<= (+ main_offset 392) main_length), 199961#(<= (+ main_offset 396) main_length), 199960#(<= (+ main_offset 400) main_length), 199967#(<= (+ main_offset 372) main_length), 199966#(<= (+ main_offset 376) main_length), 199965#(<= (+ main_offset 380) main_length), 199964#(<= (+ main_offset 384) main_length), 199971#(<= (+ main_offset 356) main_length), 199970#(<= (+ main_offset 360) main_length), 199969#(<= (+ main_offset 364) main_length), 199968#(<= (+ main_offset 368) main_length), 199975#(<= (+ main_offset 340) main_length), 199974#(<= (+ main_offset 344) main_length), 199973#(<= (+ main_offset 348) main_length), 199972#(<= (+ main_offset 352) main_length), 199979#(<= (+ main_offset 324) main_length), 199978#(<= (+ main_offset 328) main_length), 199977#(<= (+ main_offset 332) main_length), 199976#(<= (+ main_offset 336) main_length), 199983#(<= (+ main_offset 308) main_length), 199982#(<= (+ main_offset 312) main_length), 199981#(<= (+ main_offset 316) main_length), 199980#(<= (+ main_offset 320) main_length), 199987#(<= (+ main_offset 292) main_length), 199986#(<= (+ main_offset 296) main_length), 199985#(<= (+ main_offset 300) main_length), 199984#(<= (+ main_offset 304) main_length), 199991#(<= (+ main_offset 276) main_length), 199990#(<= (+ main_offset 280) main_length), 199989#(<= (+ main_offset 284) main_length), 199988#(<= (+ main_offset 288) main_length), 199995#(<= (+ main_offset 260) main_length), 199994#(<= (+ main_offset 264) main_length), 199993#(<= (+ main_offset 268) main_length), 199992#(<= (+ main_offset 272) main_length), 199999#(<= (+ main_offset 244) main_length), 199998#(<= (+ main_offset 248) main_length), 199997#(<= (+ main_offset 252) main_length), 199996#(<= (+ main_offset 256) main_length), 200003#(<= (+ main_offset 228) main_length), 200002#(<= (+ main_offset 232) main_length), 200001#(<= (+ main_offset 236) main_length), 200000#(<= (+ main_offset 240) main_length), 200006#(<= (+ main_offset 216) main_length), 200005#(<= (+ main_offset 220) main_length), 200004#(<= (+ main_offset 224) main_length)] [2018-07-23 13:55:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 43472 backedges. 0 proven. 43472 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:14,550 INFO L450 AbstractCegarLoop]: Interpolant automaton has 211 states [2018-07-23 13:55:14,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2018-07-23 13:55:14,553 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2018-07-23 13:55:14,553 INFO L87 Difference]: Start difference. First operand 420 states and 420 transitions. Second operand 211 states. [2018-07-23 13:55:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:15,807 INFO L93 Difference]: Finished difference Result 423 states and 423 transitions. [2018-07-23 13:55:15,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2018-07-23 13:55:15,807 INFO L78 Accepts]: Start accepts. Automaton has 211 states. Word has length 419 [2018-07-23 13:55:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:15,808 INFO L225 Difference]: With dead ends: 423 [2018-07-23 13:55:15,808 INFO L226 Difference]: Without dead ends: 422 [2018-07-23 13:55:15,809 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22155, Invalid=22155, Unknown=0, NotChecked=0, Total=44310 [2018-07-23 13:55:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2018-07-23 13:55:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2018-07-23 13:55:15,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2018-07-23 13:55:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 422 transitions. [2018-07-23 13:55:15,814 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 422 transitions. Word has length 419 [2018-07-23 13:55:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:15,814 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 422 transitions. [2018-07-23 13:55:15,814 INFO L472 AbstractCegarLoop]: Interpolant automaton has 211 states. [2018-07-23 13:55:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 422 transitions. [2018-07-23 13:55:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-07-23 13:55:15,816 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:15,816 INFO L357 BasicCegarLoop]: trace histogram [210, 209, 1, 1] [2018-07-23 13:55:15,816 INFO L414 AbstractCegarLoop]: === Iteration 210 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:15,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2069626174, now seen corresponding path program 209 times [2018-07-23 13:55:15,816 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 43890 backedges. 0 proven. 43890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,634 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:17,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [210] total 210 [2018-07-23 13:55:17,635 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,635 INFO L185 omatonBuilderFactory]: Interpolants [201731#(<= (+ main_offset 920) main_length), 201730#(<= (+ main_offset 924) main_length), 201729#(<= (+ main_offset 928) main_length), 201728#(<= (+ main_offset 932) main_length), 201735#(<= (+ main_offset 904) main_length), 201734#(<= (+ main_offset 908) main_length), 201733#(<= (+ main_offset 912) main_length), 201732#(<= (+ main_offset 916) main_length), 201739#(<= (+ main_offset 888) main_length), 201738#(<= (+ main_offset 892) main_length), 201737#(<= (+ main_offset 896) main_length), 201736#(<= (+ main_offset 900) main_length), 201743#(<= (+ main_offset 872) main_length), 201742#(<= (+ main_offset 876) main_length), 201741#(<= (+ main_offset 880) main_length), 201740#(<= (+ main_offset 884) main_length), 201747#(<= (+ main_offset 856) main_length), 201746#(<= (+ main_offset 860) main_length), 201745#(<= (+ main_offset 864) main_length), 201744#(<= (+ main_offset 868) main_length), 201751#(<= (+ main_offset 840) main_length), 201750#(<= (+ main_offset 844) main_length), 201749#(<= (+ main_offset 848) main_length), 201748#(<= (+ main_offset 852) main_length), 201755#(<= (+ main_offset 824) main_length), 201754#(<= (+ main_offset 828) main_length), 201753#(<= (+ main_offset 832) main_length), 201752#(<= (+ main_offset 836) main_length), 201759#(<= (+ main_offset 808) main_length), 201758#(<= (+ main_offset 812) main_length), 201757#(<= (+ main_offset 816) main_length), 201756#(<= (+ main_offset 820) main_length), 201763#(<= (+ main_offset 792) main_length), 201762#(<= (+ main_offset 796) main_length), 201761#(<= (+ main_offset 800) main_length), 201760#(<= (+ main_offset 804) main_length), 201767#(<= (+ main_offset 776) main_length), 201766#(<= (+ main_offset 780) main_length), 201765#(<= (+ main_offset 784) main_length), 201764#(<= (+ main_offset 788) main_length), 201771#(<= (+ main_offset 760) main_length), 201770#(<= (+ main_offset 764) main_length), 201769#(<= (+ main_offset 768) main_length), 201768#(<= (+ main_offset 772) main_length), 201775#(<= (+ main_offset 744) main_length), 201774#(<= (+ main_offset 748) main_length), 201773#(<= (+ main_offset 752) main_length), 201772#(<= (+ main_offset 756) main_length), 201779#(<= (+ main_offset 728) main_length), 201778#(<= (+ main_offset 732) main_length), 201777#(<= (+ main_offset 736) main_length), 201776#(<= (+ main_offset 740) main_length), 201783#(<= (+ main_offset 712) main_length), 201782#(<= (+ main_offset 716) main_length), 201781#(<= (+ main_offset 720) main_length), 201780#(<= (+ main_offset 724) main_length), 201787#(<= (+ main_offset 696) main_length), 201786#(<= (+ main_offset 700) main_length), 201785#(<= (+ main_offset 704) main_length), 201784#(<= (+ main_offset 708) main_length), 201791#(<= (+ main_offset 680) main_length), 201790#(<= (+ main_offset 684) main_length), 201789#(<= (+ main_offset 688) main_length), 201788#(<= (+ main_offset 692) main_length), 201795#(<= (+ main_offset 664) main_length), 201794#(<= (+ main_offset 668) main_length), 201793#(<= (+ main_offset 672) main_length), 201792#(<= (+ main_offset 676) main_length), 201799#(<= (+ main_offset 648) main_length), 201798#(<= (+ main_offset 652) main_length), 201797#(<= (+ main_offset 656) main_length), 201796#(<= (+ main_offset 660) main_length), 201803#(<= (+ main_offset 632) main_length), 201802#(<= (+ main_offset 636) main_length), 201801#(<= (+ main_offset 640) main_length), 201800#(<= (+ main_offset 644) main_length), 201807#(<= (+ main_offset 616) main_length), 201806#(<= (+ main_offset 620) main_length), 201805#(<= (+ main_offset 624) main_length), 201804#(<= (+ main_offset 628) main_length), 201811#(<= (+ main_offset 600) main_length), 201810#(<= (+ main_offset 604) main_length), 201809#(<= (+ main_offset 608) main_length), 201808#(<= (+ main_offset 612) main_length), 201815#(<= (+ main_offset 584) main_length), 201814#(<= (+ main_offset 588) main_length), 201813#(<= (+ main_offset 592) main_length), 201812#(<= (+ main_offset 596) main_length), 201819#(<= (+ main_offset 568) main_length), 201818#(<= (+ main_offset 572) main_length), 201817#(<= (+ main_offset 576) main_length), 201816#(<= (+ main_offset 580) main_length), 201823#(<= (+ main_offset 552) main_length), 201822#(<= (+ main_offset 556) main_length), 201821#(<= (+ main_offset 560) main_length), 201820#(<= (+ main_offset 564) main_length), 201827#(<= (+ main_offset 536) main_length), 201826#(<= (+ main_offset 540) main_length), 201825#(<= (+ main_offset 544) main_length), 201824#(<= (+ main_offset 548) main_length), 201831#(<= (+ main_offset 520) main_length), 201830#(<= (+ main_offset 524) main_length), 201829#(<= (+ main_offset 528) main_length), 201828#(<= (+ main_offset 532) main_length), 201835#(<= (+ main_offset 504) main_length), 201834#(<= (+ main_offset 508) main_length), 201833#(<= (+ main_offset 512) main_length), 201832#(<= (+ main_offset 516) main_length), 201839#(<= (+ main_offset 488) main_length), 201838#(<= (+ main_offset 492) main_length), 201837#(<= (+ main_offset 496) main_length), 201836#(<= (+ main_offset 500) main_length), 201843#(<= (+ main_offset 472) main_length), 201842#(<= (+ main_offset 476) main_length), 201841#(<= (+ main_offset 480) main_length), 201840#(<= (+ main_offset 484) main_length), 201847#(<= (+ main_offset 456) main_length), 201846#(<= (+ main_offset 460) main_length), 201845#(<= (+ main_offset 464) main_length), 201844#(<= (+ main_offset 468) main_length), 201851#(<= (+ main_offset 440) main_length), 201850#(<= (+ main_offset 444) main_length), 201849#(<= (+ main_offset 448) main_length), 201848#(<= (+ main_offset 452) main_length), 201855#(<= (+ main_offset 424) main_length), 201854#(<= (+ main_offset 428) main_length), 201853#(<= (+ main_offset 432) main_length), 201852#(<= (+ main_offset 436) main_length), 201859#(<= (+ main_offset 408) main_length), 201858#(<= (+ main_offset 412) main_length), 201857#(<= (+ main_offset 416) main_length), 201856#(<= (+ main_offset 420) main_length), 201863#(<= (+ main_offset 392) main_length), 201862#(<= (+ main_offset 396) main_length), 201861#(<= (+ main_offset 400) main_length), 201860#(<= (+ main_offset 404) main_length), 201867#(<= (+ main_offset 376) main_length), 201866#(<= (+ main_offset 380) main_length), 201865#(<= (+ main_offset 384) main_length), 201864#(<= (+ main_offset 388) main_length), 201871#(<= (+ main_offset 360) main_length), 201870#(<= (+ main_offset 364) main_length), 201869#(<= (+ main_offset 368) main_length), 201868#(<= (+ main_offset 372) main_length), 201875#(<= (+ main_offset 344) main_length), 201874#(<= (+ main_offset 348) main_length), 201873#(<= (+ main_offset 352) main_length), 201872#(<= (+ main_offset 356) main_length), 201879#(<= (+ main_offset 328) main_length), 201878#(<= (+ main_offset 332) main_length), 201877#(<= (+ main_offset 336) main_length), 201876#(<= (+ main_offset 340) main_length), 201883#(<= (+ main_offset 312) main_length), 201882#(<= (+ main_offset 316) main_length), 201881#(<= (+ main_offset 320) main_length), 201880#(<= (+ main_offset 324) main_length), 201887#(<= (+ main_offset 296) main_length), 201886#(<= (+ main_offset 300) main_length), 201885#(<= (+ main_offset 304) main_length), 201884#(<= (+ main_offset 308) main_length), 201891#(<= (+ main_offset 280) main_length), 201890#(<= (+ main_offset 284) main_length), 201889#(<= (+ main_offset 288) main_length), 201888#(<= (+ main_offset 292) main_length), 201895#(<= (+ main_offset 264) main_length), 201894#(<= (+ main_offset 268) main_length), 201893#(<= (+ main_offset 272) main_length), 201892#(<= (+ main_offset 276) main_length), 201899#(<= (+ main_offset 248) main_length), 201898#(<= (+ main_offset 252) main_length), 201897#(<= (+ main_offset 256) main_length), 201896#(<= (+ main_offset 260) main_length), 201903#(<= (+ main_offset 232) main_length), 201902#(<= (+ main_offset 236) main_length), 201901#(<= (+ main_offset 240) main_length), 201900#(<= (+ main_offset 244) main_length), 201907#(<= (+ main_offset 216) main_length), 201906#(<= (+ main_offset 220) main_length), 201905#(<= (+ main_offset 224) main_length), 201904#(<= (+ main_offset 228) main_length), 201908#(<= (+ main_offset 212) main_length), 201699#(<= (+ main_offset 1048) main_length), 201698#false, 201697#true, 201703#(<= (+ main_offset 1032) main_length), 201702#(<= (+ main_offset 1036) main_length), 201701#(<= (+ main_offset 1040) main_length), 201700#(<= (+ main_offset 1044) main_length), 201707#(<= (+ main_offset 1016) main_length), 201706#(<= (+ main_offset 1020) main_length), 201705#(<= (+ main_offset 1024) main_length), 201704#(<= (+ main_offset 1028) main_length), 201711#(<= (+ main_offset 1000) main_length), 201710#(<= (+ main_offset 1004) main_length), 201709#(<= (+ main_offset 1008) main_length), 201708#(<= (+ main_offset 1012) main_length), 201715#(<= (+ main_offset 984) main_length), 201714#(<= (+ main_offset 988) main_length), 201713#(<= (+ main_offset 992) main_length), 201712#(<= (+ main_offset 996) main_length), 201719#(<= (+ main_offset 968) main_length), 201718#(<= (+ main_offset 972) main_length), 201717#(<= (+ main_offset 976) main_length), 201716#(<= (+ main_offset 980) main_length), 201723#(<= (+ main_offset 952) main_length), 201722#(<= (+ main_offset 956) main_length), 201721#(<= (+ main_offset 960) main_length), 201720#(<= (+ main_offset 964) main_length), 201727#(<= (+ main_offset 936) main_length), 201726#(<= (+ main_offset 940) main_length), 201725#(<= (+ main_offset 944) main_length), 201724#(<= (+ main_offset 948) main_length)] [2018-07-23 13:55:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 43890 backedges. 0 proven. 43890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:17,638 INFO L450 AbstractCegarLoop]: Interpolant automaton has 212 states [2018-07-23 13:55:17,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2018-07-23 13:55:17,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22366, Invalid=22366, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:55:17,643 INFO L87 Difference]: Start difference. First operand 422 states and 422 transitions. Second operand 212 states. [2018-07-23 13:55:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:19,794 INFO L93 Difference]: Finished difference Result 425 states and 425 transitions. [2018-07-23 13:55:19,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2018-07-23 13:55:19,794 INFO L78 Accepts]: Start accepts. Automaton has 212 states. Word has length 421 [2018-07-23 13:55:19,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:19,795 INFO L225 Difference]: With dead ends: 425 [2018-07-23 13:55:19,795 INFO L226 Difference]: Without dead ends: 424 [2018-07-23 13:55:19,796 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22366, Invalid=22366, Unknown=0, NotChecked=0, Total=44732 [2018-07-23 13:55:19,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-07-23 13:55:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2018-07-23 13:55:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2018-07-23 13:55:19,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 424 transitions. [2018-07-23 13:55:19,800 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 424 transitions. Word has length 421 [2018-07-23 13:55:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:19,801 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 424 transitions. [2018-07-23 13:55:19,801 INFO L472 AbstractCegarLoop]: Interpolant automaton has 212 states. [2018-07-23 13:55:19,801 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 424 transitions. [2018-07-23 13:55:19,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-07-23 13:55:19,802 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:19,802 INFO L357 BasicCegarLoop]: trace histogram [211, 210, 1, 1] [2018-07-23 13:55:19,802 INFO L414 AbstractCegarLoop]: === Iteration 211 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:19,802 INFO L82 PathProgramCache]: Analyzing trace with hash -340894076, now seen corresponding path program 210 times [2018-07-23 13:55:19,803 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 44310 backedges. 0 proven. 44310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,688 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:21,688 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [211] total 211 [2018-07-23 13:55:21,688 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:21,688 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 13:55:21,689 INFO L185 omatonBuilderFactory]: Interpolants [203779#(<= (+ main_offset 368) main_length), 203778#(<= (+ main_offset 372) main_length), 203777#(<= (+ main_offset 376) main_length), 203776#(<= (+ main_offset 380) main_length), 203783#(<= (+ main_offset 352) main_length), 203782#(<= (+ main_offset 356) main_length), 203781#(<= (+ main_offset 360) main_length), 203780#(<= (+ main_offset 364) main_length), 203787#(<= (+ main_offset 336) main_length), 203786#(<= (+ main_offset 340) main_length), 203785#(<= (+ main_offset 344) main_length), 203784#(<= (+ main_offset 348) main_length), 203791#(<= (+ main_offset 320) main_length), 203790#(<= (+ main_offset 324) main_length), 203789#(<= (+ main_offset 328) main_length), 203788#(<= (+ main_offset 332) main_length), 203795#(<= (+ main_offset 304) main_length), 203794#(<= (+ main_offset 308) main_length), 203793#(<= (+ main_offset 312) main_length), 203792#(<= (+ main_offset 316) main_length), 203799#(<= (+ main_offset 288) main_length), 203798#(<= (+ main_offset 292) main_length), 203797#(<= (+ main_offset 296) main_length), 203796#(<= (+ main_offset 300) main_length), 203803#(<= (+ main_offset 272) main_length), 203802#(<= (+ main_offset 276) main_length), 203801#(<= (+ main_offset 280) main_length), 203800#(<= (+ main_offset 284) main_length), 203807#(<= (+ main_offset 256) main_length), 203806#(<= (+ main_offset 260) main_length), 203805#(<= (+ main_offset 264) main_length), 203804#(<= (+ main_offset 268) main_length), 203811#(<= (+ main_offset 240) main_length), 203810#(<= (+ main_offset 244) main_length), 203809#(<= (+ main_offset 248) main_length), 203808#(<= (+ main_offset 252) main_length), 203815#(<= (+ main_offset 224) main_length), 203814#(<= (+ main_offset 228) main_length), 203813#(<= (+ main_offset 232) main_length), 203812#(<= (+ main_offset 236) main_length), 203819#(<= (+ main_offset 208) main_length), 203818#(<= (+ main_offset 212) main_length), 203817#(<= (+ main_offset 216) main_length), 203816#(<= (+ main_offset 220) main_length), 203607#true, 203611#(<= (+ main_offset 1040) main_length), 203610#(<= (+ main_offset 1044) main_length), 203609#(<= (+ main_offset 1048) main_length), 203608#false, 203615#(<= (+ main_offset 1024) main_length), 203614#(<= (+ main_offset 1028) main_length), 203613#(<= (+ main_offset 1032) main_length), 203612#(<= (+ main_offset 1036) main_length), 203619#(<= (+ main_offset 1008) main_length), 203618#(<= (+ main_offset 1012) main_length), 203617#(<= (+ main_offset 1016) main_length), 203616#(<= (+ main_offset 1020) main_length), 203623#(<= (+ main_offset 992) main_length), 203622#(<= (+ main_offset 996) main_length), 203621#(<= (+ main_offset 1000) main_length), 203620#(<= (+ main_offset 1004) main_length), 203627#(<= (+ main_offset 976) main_length), 203626#(<= (+ main_offset 980) main_length), 203625#(<= (+ main_offset 984) main_length), 203624#(<= (+ main_offset 988) main_length), 203631#(<= (+ main_offset 960) main_length), 203630#(<= (+ main_offset 964) main_length), 203629#(<= (+ main_offset 968) main_length), 203628#(<= (+ main_offset 972) main_length), 203635#(<= (+ main_offset 944) main_length), 203634#(<= (+ main_offset 948) main_length), 203633#(<= (+ main_offset 952) main_length), 203632#(<= (+ main_offset 956) main_length), 203639#(<= (+ main_offset 928) main_length), 203638#(<= (+ main_offset 932) main_length), 203637#(<= (+ main_offset 936) main_length), 203636#(<= (+ main_offset 940) main_length), 203643#(<= (+ main_offset 912) main_length), 203642#(<= (+ main_offset 916) main_length), 203641#(<= (+ main_offset 920) main_length), 203640#(<= (+ main_offset 924) main_length), 203647#(<= (+ main_offset 896) main_length), 203646#(<= (+ main_offset 900) main_length), 203645#(<= (+ main_offset 904) main_length), 203644#(<= (+ main_offset 908) main_length), 203651#(<= (+ main_offset 880) main_length), 203650#(<= (+ main_offset 884) main_length), 203649#(<= (+ main_offset 888) main_length), 203648#(<= (+ main_offset 892) main_length), 203655#(<= (+ main_offset 864) main_length), 203654#(<= (+ main_offset 868) main_length), 203653#(<= (+ main_offset 872) main_length), 203652#(<= (+ main_offset 876) main_length), 203659#(<= (+ main_offset 848) main_length), 203658#(<= (+ main_offset 852) main_length), 203657#(<= (+ main_offset 856) main_length), 203656#(<= (+ main_offset 860) main_length), 203663#(<= (+ main_offset 832) main_length), 203662#(<= (+ main_offset 836) main_length), 203661#(<= (+ main_offset 840) main_length), 203660#(<= (+ main_offset 844) main_length), 203667#(<= (+ main_offset 816) main_length), 203666#(<= (+ main_offset 820) main_length), 203665#(<= (+ main_offset 824) main_length), 203664#(<= (+ main_offset 828) main_length), 203671#(<= (+ main_offset 800) main_length), 203670#(<= (+ main_offset 804) main_length), 203669#(<= (+ main_offset 808) main_length), 203668#(<= (+ main_offset 812) main_length), 203675#(<= (+ main_offset 784) main_length), 203674#(<= (+ main_offset 788) main_length), 203673#(<= (+ main_offset 792) main_length), 203672#(<= (+ main_offset 796) main_length), 203679#(<= (+ main_offset 768) main_length), 203678#(<= (+ main_offset 772) main_length), 203677#(<= (+ main_offset 776) main_length), 203676#(<= (+ main_offset 780) main_length), 203683#(<= (+ main_offset 752) main_length), 203682#(<= (+ main_offset 756) main_length), 203681#(<= (+ main_offset 760) main_length), 203680#(<= (+ main_offset 764) main_length), 203687#(<= (+ main_offset 736) main_length), 203686#(<= (+ main_offset 740) main_length), 203685#(<= (+ main_offset 744) main_length), 203684#(<= (+ main_offset 748) main_length), 203691#(<= (+ main_offset 720) main_length), 203690#(<= (+ main_offset 724) main_length), 203689#(<= (+ main_offset 728) main_length), 203688#(<= (+ main_offset 732) main_length), 203695#(<= (+ main_offset 704) main_length), 203694#(<= (+ main_offset 708) main_length), 203693#(<= (+ main_offset 712) main_length), 203692#(<= (+ main_offset 716) main_length), 203699#(<= (+ main_offset 688) main_length), 203698#(<= (+ main_offset 692) main_length), 203697#(<= (+ main_offset 696) main_length), 203696#(<= (+ main_offset 700) main_length), 203703#(<= (+ main_offset 672) main_length), 203702#(<= (+ main_offset 676) main_length), 203701#(<= (+ main_offset 680) main_length), 203700#(<= (+ main_offset 684) main_length), 203707#(<= (+ main_offset 656) main_length), 203706#(<= (+ main_offset 660) main_length), 203705#(<= (+ main_offset 664) main_length), 203704#(<= (+ main_offset 668) main_length), 203711#(<= (+ main_offset 640) main_length), 203710#(<= (+ main_offset 644) main_length), 203709#(<= (+ main_offset 648) main_length), 203708#(<= (+ main_offset 652) main_length), 203715#(<= (+ main_offset 624) main_length), 203714#(<= (+ main_offset 628) main_length), 203713#(<= (+ main_offset 632) main_length), 203712#(<= (+ main_offset 636) main_length), 203719#(<= (+ main_offset 608) main_length), 203718#(<= (+ main_offset 612) main_length), 203717#(<= (+ main_offset 616) main_length), 203716#(<= (+ main_offset 620) main_length), 203723#(<= (+ main_offset 592) main_length), 203722#(<= (+ main_offset 596) main_length), 203721#(<= (+ main_offset 600) main_length), 203720#(<= (+ main_offset 604) main_length), 203727#(<= (+ main_offset 576) main_length), 203726#(<= (+ main_offset 580) main_length), 203725#(<= (+ main_offset 584) main_length), 203724#(<= (+ main_offset 588) main_length), 203731#(<= (+ main_offset 560) main_length), 203730#(<= (+ main_offset 564) main_length), 203729#(<= (+ main_offset 568) main_length), 203728#(<= (+ main_offset 572) main_length), 203735#(<= (+ main_offset 544) main_length), 203734#(<= (+ main_offset 548) main_length), 203733#(<= (+ main_offset 552) main_length), 203732#(<= (+ main_offset 556) main_length), 203739#(<= (+ main_offset 528) main_length), 203738#(<= (+ main_offset 532) main_length), 203737#(<= (+ main_offset 536) main_length), 203736#(<= (+ main_offset 540) main_length), 203743#(<= (+ main_offset 512) main_length), 203742#(<= (+ main_offset 516) main_length), 203741#(<= (+ main_offset 520) main_length), 203740#(<= (+ main_offset 524) main_length), 203747#(<= (+ main_offset 496) main_length), 203746#(<= (+ main_offset 500) main_length), 203745#(<= (+ main_offset 504) main_length), 203744#(<= (+ main_offset 508) main_length), 203751#(<= (+ main_offset 480) main_length), 203750#(<= (+ main_offset 484) main_length), 203749#(<= (+ main_offset 488) main_length), 203748#(<= (+ main_offset 492) main_length), 203755#(<= (+ main_offset 464) main_length), 203754#(<= (+ main_offset 468) main_length), 203753#(<= (+ main_offset 472) main_length), 203752#(<= (+ main_offset 476) main_length), 203759#(<= (+ main_offset 448) main_length), 203758#(<= (+ main_offset 452) main_length), 203757#(<= (+ main_offset 456) main_length), 203756#(<= (+ main_offset 460) main_length), 203763#(<= (+ main_offset 432) main_length), 203762#(<= (+ main_offset 436) main_length), 203761#(<= (+ main_offset 440) main_length), 203760#(<= (+ main_offset 444) main_length), 203767#(<= (+ main_offset 416) main_length), 203766#(<= (+ main_offset 420) main_length), 203765#(<= (+ main_offset 424) main_length), 203764#(<= (+ main_offset 428) main_length), 203771#(<= (+ main_offset 400) main_length), 203770#(<= (+ main_offset 404) main_length), 203769#(<= (+ main_offset 408) main_length), 203768#(<= (+ main_offset 412) main_length), 203775#(<= (+ main_offset 384) main_length), 203774#(<= (+ main_offset 388) main_length), 203773#(<= (+ main_offset 392) main_length), 203772#(<= (+ main_offset 396) main_length)] [2018-07-23 13:55:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 44310 backedges. 0 proven. 44310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:21,691 INFO L450 AbstractCegarLoop]: Interpolant automaton has 213 states [2018-07-23 13:55:21,694 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2018-07-23 13:55:21,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2018-07-23 13:55:21,696 INFO L87 Difference]: Start difference. First operand 424 states and 424 transitions. Second operand 213 states. [2018-07-23 13:55:22,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:22,898 INFO L93 Difference]: Finished difference Result 427 states and 427 transitions. [2018-07-23 13:55:22,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2018-07-23 13:55:22,898 INFO L78 Accepts]: Start accepts. Automaton has 213 states. Word has length 423 [2018-07-23 13:55:22,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:22,899 INFO L225 Difference]: With dead ends: 427 [2018-07-23 13:55:22,899 INFO L226 Difference]: Without dead ends: 426 [2018-07-23 13:55:22,901 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2018-07-23 13:55:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2018-07-23 13:55:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2018-07-23 13:55:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2018-07-23 13:55:22,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2018-07-23 13:55:22,906 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 423 [2018-07-23 13:55:22,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:22,907 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2018-07-23 13:55:22,907 INFO L472 AbstractCegarLoop]: Interpolant automaton has 213 states. [2018-07-23 13:55:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2018-07-23 13:55:22,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2018-07-23 13:55:22,908 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:22,908 INFO L357 BasicCegarLoop]: trace histogram [212, 211, 1, 1] [2018-07-23 13:55:22,908 INFO L414 AbstractCegarLoop]: === Iteration 212 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:22,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1181691450, now seen corresponding path program 211 times [2018-07-23 13:55:22,908 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 44732 backedges. 0 proven. 44732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,738 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:24,738 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [212] total 212 [2018-07-23 13:55:24,739 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:24,739 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 13:55:24,739 INFO L185 omatonBuilderFactory]: Interpolants [205527#false, 205526#true, 205531#(<= (+ main_offset 1036) main_length), 205530#(<= (+ main_offset 1040) main_length), 205529#(<= (+ main_offset 1044) main_length), 205528#(<= (+ main_offset 1048) main_length), 205535#(<= (+ main_offset 1020) main_length), 205534#(<= (+ main_offset 1024) main_length), 205533#(<= (+ main_offset 1028) main_length), 205532#(<= (+ main_offset 1032) main_length), 205539#(<= (+ main_offset 1004) main_length), 205538#(<= (+ main_offset 1008) main_length), 205537#(<= (+ main_offset 1012) main_length), 205536#(<= (+ main_offset 1016) main_length), 205543#(<= (+ main_offset 988) main_length), 205542#(<= (+ main_offset 992) main_length), 205541#(<= (+ main_offset 996) main_length), 205540#(<= (+ main_offset 1000) main_length), 205547#(<= (+ main_offset 972) main_length), 205546#(<= (+ main_offset 976) main_length), 205545#(<= (+ main_offset 980) main_length), 205544#(<= (+ main_offset 984) main_length), 205551#(<= (+ main_offset 956) main_length), 205550#(<= (+ main_offset 960) main_length), 205549#(<= (+ main_offset 964) main_length), 205548#(<= (+ main_offset 968) main_length), 205555#(<= (+ main_offset 940) main_length), 205554#(<= (+ main_offset 944) main_length), 205553#(<= (+ main_offset 948) main_length), 205552#(<= (+ main_offset 952) main_length), 205559#(<= (+ main_offset 924) main_length), 205558#(<= (+ main_offset 928) main_length), 205557#(<= (+ main_offset 932) main_length), 205556#(<= (+ main_offset 936) main_length), 205563#(<= (+ main_offset 908) main_length), 205562#(<= (+ main_offset 912) main_length), 205561#(<= (+ main_offset 916) main_length), 205560#(<= (+ main_offset 920) main_length), 205567#(<= (+ main_offset 892) main_length), 205566#(<= (+ main_offset 896) main_length), 205565#(<= (+ main_offset 900) main_length), 205564#(<= (+ main_offset 904) main_length), 205571#(<= (+ main_offset 876) main_length), 205570#(<= (+ main_offset 880) main_length), 205569#(<= (+ main_offset 884) main_length), 205568#(<= (+ main_offset 888) main_length), 205575#(<= (+ main_offset 860) main_length), 205574#(<= (+ main_offset 864) main_length), 205573#(<= (+ main_offset 868) main_length), 205572#(<= (+ main_offset 872) main_length), 205579#(<= (+ main_offset 844) main_length), 205578#(<= (+ main_offset 848) main_length), 205577#(<= (+ main_offset 852) main_length), 205576#(<= (+ main_offset 856) main_length), 205583#(<= (+ main_offset 828) main_length), 205582#(<= (+ main_offset 832) main_length), 205581#(<= (+ main_offset 836) main_length), 205580#(<= (+ main_offset 840) main_length), 205587#(<= (+ main_offset 812) main_length), 205586#(<= (+ main_offset 816) main_length), 205585#(<= (+ main_offset 820) main_length), 205584#(<= (+ main_offset 824) main_length), 205591#(<= (+ main_offset 796) main_length), 205590#(<= (+ main_offset 800) main_length), 205589#(<= (+ main_offset 804) main_length), 205588#(<= (+ main_offset 808) main_length), 205595#(<= (+ main_offset 780) main_length), 205594#(<= (+ main_offset 784) main_length), 205593#(<= (+ main_offset 788) main_length), 205592#(<= (+ main_offset 792) main_length), 205599#(<= (+ main_offset 764) main_length), 205598#(<= (+ main_offset 768) main_length), 205597#(<= (+ main_offset 772) main_length), 205596#(<= (+ main_offset 776) main_length), 205603#(<= (+ main_offset 748) main_length), 205602#(<= (+ main_offset 752) main_length), 205601#(<= (+ main_offset 756) main_length), 205600#(<= (+ main_offset 760) main_length), 205607#(<= (+ main_offset 732) main_length), 205606#(<= (+ main_offset 736) main_length), 205605#(<= (+ main_offset 740) main_length), 205604#(<= (+ main_offset 744) main_length), 205611#(<= (+ main_offset 716) main_length), 205610#(<= (+ main_offset 720) main_length), 205609#(<= (+ main_offset 724) main_length), 205608#(<= (+ main_offset 728) main_length), 205615#(<= (+ main_offset 700) main_length), 205614#(<= (+ main_offset 704) main_length), 205613#(<= (+ main_offset 708) main_length), 205612#(<= (+ main_offset 712) main_length), 205619#(<= (+ main_offset 684) main_length), 205618#(<= (+ main_offset 688) main_length), 205617#(<= (+ main_offset 692) main_length), 205616#(<= (+ main_offset 696) main_length), 205623#(<= (+ main_offset 668) main_length), 205622#(<= (+ main_offset 672) main_length), 205621#(<= (+ main_offset 676) main_length), 205620#(<= (+ main_offset 680) main_length), 205627#(<= (+ main_offset 652) main_length), 205626#(<= (+ main_offset 656) main_length), 205625#(<= (+ main_offset 660) main_length), 205624#(<= (+ main_offset 664) main_length), 205631#(<= (+ main_offset 636) main_length), 205630#(<= (+ main_offset 640) main_length), 205629#(<= (+ main_offset 644) main_length), 205628#(<= (+ main_offset 648) main_length), 205635#(<= (+ main_offset 620) main_length), 205634#(<= (+ main_offset 624) main_length), 205633#(<= (+ main_offset 628) main_length), 205632#(<= (+ main_offset 632) main_length), 205639#(<= (+ main_offset 604) main_length), 205638#(<= (+ main_offset 608) main_length), 205637#(<= (+ main_offset 612) main_length), 205636#(<= (+ main_offset 616) main_length), 205643#(<= (+ main_offset 588) main_length), 205642#(<= (+ main_offset 592) main_length), 205641#(<= (+ main_offset 596) main_length), 205640#(<= (+ main_offset 600) main_length), 205647#(<= (+ main_offset 572) main_length), 205646#(<= (+ main_offset 576) main_length), 205645#(<= (+ main_offset 580) main_length), 205644#(<= (+ main_offset 584) main_length), 205651#(<= (+ main_offset 556) main_length), 205650#(<= (+ main_offset 560) main_length), 205649#(<= (+ main_offset 564) main_length), 205648#(<= (+ main_offset 568) main_length), 205655#(<= (+ main_offset 540) main_length), 205654#(<= (+ main_offset 544) main_length), 205653#(<= (+ main_offset 548) main_length), 205652#(<= (+ main_offset 552) main_length), 205659#(<= (+ main_offset 524) main_length), 205658#(<= (+ main_offset 528) main_length), 205657#(<= (+ main_offset 532) main_length), 205656#(<= (+ main_offset 536) main_length), 205663#(<= (+ main_offset 508) main_length), 205662#(<= (+ main_offset 512) main_length), 205661#(<= (+ main_offset 516) main_length), 205660#(<= (+ main_offset 520) main_length), 205667#(<= (+ main_offset 492) main_length), 205666#(<= (+ main_offset 496) main_length), 205665#(<= (+ main_offset 500) main_length), 205664#(<= (+ main_offset 504) main_length), 205671#(<= (+ main_offset 476) main_length), 205670#(<= (+ main_offset 480) main_length), 205669#(<= (+ main_offset 484) main_length), 205668#(<= (+ main_offset 488) main_length), 205675#(<= (+ main_offset 460) main_length), 205674#(<= (+ main_offset 464) main_length), 205673#(<= (+ main_offset 468) main_length), 205672#(<= (+ main_offset 472) main_length), 205679#(<= (+ main_offset 444) main_length), 205678#(<= (+ main_offset 448) main_length), 205677#(<= (+ main_offset 452) main_length), 205676#(<= (+ main_offset 456) main_length), 205683#(<= (+ main_offset 428) main_length), 205682#(<= (+ main_offset 432) main_length), 205681#(<= (+ main_offset 436) main_length), 205680#(<= (+ main_offset 440) main_length), 205687#(<= (+ main_offset 412) main_length), 205686#(<= (+ main_offset 416) main_length), 205685#(<= (+ main_offset 420) main_length), 205684#(<= (+ main_offset 424) main_length), 205691#(<= (+ main_offset 396) main_length), 205690#(<= (+ main_offset 400) main_length), 205689#(<= (+ main_offset 404) main_length), 205688#(<= (+ main_offset 408) main_length), 205695#(<= (+ main_offset 380) main_length), 205694#(<= (+ main_offset 384) main_length), 205693#(<= (+ main_offset 388) main_length), 205692#(<= (+ main_offset 392) main_length), 205699#(<= (+ main_offset 364) main_length), 205698#(<= (+ main_offset 368) main_length), 205697#(<= (+ main_offset 372) main_length), 205696#(<= (+ main_offset 376) main_length), 205703#(<= (+ main_offset 348) main_length), 205702#(<= (+ main_offset 352) main_length), 205701#(<= (+ main_offset 356) main_length), 205700#(<= (+ main_offset 360) main_length), 205707#(<= (+ main_offset 332) main_length), 205706#(<= (+ main_offset 336) main_length), 205705#(<= (+ main_offset 340) main_length), 205704#(<= (+ main_offset 344) main_length), 205711#(<= (+ main_offset 316) main_length), 205710#(<= (+ main_offset 320) main_length), 205709#(<= (+ main_offset 324) main_length), 205708#(<= (+ main_offset 328) main_length), 205715#(<= (+ main_offset 300) main_length), 205714#(<= (+ main_offset 304) main_length), 205713#(<= (+ main_offset 308) main_length), 205712#(<= (+ main_offset 312) main_length), 205719#(<= (+ main_offset 284) main_length), 205718#(<= (+ main_offset 288) main_length), 205717#(<= (+ main_offset 292) main_length), 205716#(<= (+ main_offset 296) main_length), 205723#(<= (+ main_offset 268) main_length), 205722#(<= (+ main_offset 272) main_length), 205721#(<= (+ main_offset 276) main_length), 205720#(<= (+ main_offset 280) main_length), 205727#(<= (+ main_offset 252) main_length), 205726#(<= (+ main_offset 256) main_length), 205725#(<= (+ main_offset 260) main_length), 205724#(<= (+ main_offset 264) main_length), 205731#(<= (+ main_offset 236) main_length), 205730#(<= (+ main_offset 240) main_length), 205729#(<= (+ main_offset 244) main_length), 205728#(<= (+ main_offset 248) main_length), 205735#(<= (+ main_offset 220) main_length), 205734#(<= (+ main_offset 224) main_length), 205733#(<= (+ main_offset 228) main_length), 205732#(<= (+ main_offset 232) main_length), 205739#(<= (+ main_offset 204) main_length), 205738#(<= (+ main_offset 208) main_length), 205737#(<= (+ main_offset 212) main_length), 205736#(<= (+ main_offset 216) main_length)] [2018-07-23 13:55:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 44732 backedges. 0 proven. 44732 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:24,741 INFO L450 AbstractCegarLoop]: Interpolant automaton has 214 states [2018-07-23 13:55:24,744 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 214 interpolants. [2018-07-23 13:55:24,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22791, Invalid=22791, Unknown=0, NotChecked=0, Total=45582 [2018-07-23 13:55:24,745 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand 214 states. [2018-07-23 13:55:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:26,763 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2018-07-23 13:55:26,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2018-07-23 13:55:26,764 INFO L78 Accepts]: Start accepts. Automaton has 214 states. Word has length 425 [2018-07-23 13:55:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:26,764 INFO L225 Difference]: With dead ends: 429 [2018-07-23 13:55:26,764 INFO L226 Difference]: Without dead ends: 428 [2018-07-23 13:55:26,766 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=22791, Invalid=22791, Unknown=0, NotChecked=0, Total=45582 [2018-07-23 13:55:26,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2018-07-23 13:55:26,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2018-07-23 13:55:26,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 428 states. [2018-07-23 13:55:26,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 428 transitions. [2018-07-23 13:55:26,771 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 428 transitions. Word has length 425 [2018-07-23 13:55:26,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:26,772 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 428 transitions. [2018-07-23 13:55:26,772 INFO L472 AbstractCegarLoop]: Interpolant automaton has 214 states. [2018-07-23 13:55:26,772 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 428 transitions. [2018-07-23 13:55:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2018-07-23 13:55:26,773 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:26,773 INFO L357 BasicCegarLoop]: trace histogram [213, 212, 1, 1] [2018-07-23 13:55:26,773 INFO L414 AbstractCegarLoop]: === Iteration 213 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:26,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1734116216, now seen corresponding path program 212 times [2018-07-23 13:55:26,774 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:28,780 INFO L134 CoverageAnalysis]: Checked inductivity of 45156 backedges. 0 proven. 45156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,781 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:28,781 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [213] total 213 [2018-07-23 13:55:28,781 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,782 INFO L185 omatonBuilderFactory]: Interpolants [207455#false, 207454#true, 207459#(<= (+ main_offset 1036) main_length), 207458#(<= (+ main_offset 1040) main_length), 207457#(<= (+ main_offset 1044) main_length), 207456#(<= (+ main_offset 1048) main_length), 207463#(<= (+ main_offset 1020) main_length), 207462#(<= (+ main_offset 1024) main_length), 207461#(<= (+ main_offset 1028) main_length), 207460#(<= (+ main_offset 1032) main_length), 207467#(<= (+ main_offset 1004) main_length), 207466#(<= (+ main_offset 1008) main_length), 207465#(<= (+ main_offset 1012) main_length), 207464#(<= (+ main_offset 1016) main_length), 207471#(<= (+ main_offset 988) main_length), 207470#(<= (+ main_offset 992) main_length), 207469#(<= (+ main_offset 996) main_length), 207468#(<= (+ main_offset 1000) main_length), 207475#(<= (+ main_offset 972) main_length), 207474#(<= (+ main_offset 976) main_length), 207473#(<= (+ main_offset 980) main_length), 207472#(<= (+ main_offset 984) main_length), 207479#(<= (+ main_offset 956) main_length), 207478#(<= (+ main_offset 960) main_length), 207477#(<= (+ main_offset 964) main_length), 207476#(<= (+ main_offset 968) main_length), 207483#(<= (+ main_offset 940) main_length), 207482#(<= (+ main_offset 944) main_length), 207481#(<= (+ main_offset 948) main_length), 207480#(<= (+ main_offset 952) main_length), 207487#(<= (+ main_offset 924) main_length), 207486#(<= (+ main_offset 928) main_length), 207485#(<= (+ main_offset 932) main_length), 207484#(<= (+ main_offset 936) main_length), 207491#(<= (+ main_offset 908) main_length), 207490#(<= (+ main_offset 912) main_length), 207489#(<= (+ main_offset 916) main_length), 207488#(<= (+ main_offset 920) main_length), 207495#(<= (+ main_offset 892) main_length), 207494#(<= (+ main_offset 896) main_length), 207493#(<= (+ main_offset 900) main_length), 207492#(<= (+ main_offset 904) main_length), 207499#(<= (+ main_offset 876) main_length), 207498#(<= (+ main_offset 880) main_length), 207497#(<= (+ main_offset 884) main_length), 207496#(<= (+ main_offset 888) main_length), 207503#(<= (+ main_offset 860) main_length), 207502#(<= (+ main_offset 864) main_length), 207501#(<= (+ main_offset 868) main_length), 207500#(<= (+ main_offset 872) main_length), 207507#(<= (+ main_offset 844) main_length), 207506#(<= (+ main_offset 848) main_length), 207505#(<= (+ main_offset 852) main_length), 207504#(<= (+ main_offset 856) main_length), 207511#(<= (+ main_offset 828) main_length), 207510#(<= (+ main_offset 832) main_length), 207509#(<= (+ main_offset 836) main_length), 207508#(<= (+ main_offset 840) main_length), 207515#(<= (+ main_offset 812) main_length), 207514#(<= (+ main_offset 816) main_length), 207513#(<= (+ main_offset 820) main_length), 207512#(<= (+ main_offset 824) main_length), 207519#(<= (+ main_offset 796) main_length), 207518#(<= (+ main_offset 800) main_length), 207517#(<= (+ main_offset 804) main_length), 207516#(<= (+ main_offset 808) main_length), 207523#(<= (+ main_offset 780) main_length), 207522#(<= (+ main_offset 784) main_length), 207521#(<= (+ main_offset 788) main_length), 207520#(<= (+ main_offset 792) main_length), 207527#(<= (+ main_offset 764) main_length), 207526#(<= (+ main_offset 768) main_length), 207525#(<= (+ main_offset 772) main_length), 207524#(<= (+ main_offset 776) main_length), 207531#(<= (+ main_offset 748) main_length), 207530#(<= (+ main_offset 752) main_length), 207529#(<= (+ main_offset 756) main_length), 207528#(<= (+ main_offset 760) main_length), 207535#(<= (+ main_offset 732) main_length), 207534#(<= (+ main_offset 736) main_length), 207533#(<= (+ main_offset 740) main_length), 207532#(<= (+ main_offset 744) main_length), 207539#(<= (+ main_offset 716) main_length), 207538#(<= (+ main_offset 720) main_length), 207537#(<= (+ main_offset 724) main_length), 207536#(<= (+ main_offset 728) main_length), 207543#(<= (+ main_offset 700) main_length), 207542#(<= (+ main_offset 704) main_length), 207541#(<= (+ main_offset 708) main_length), 207540#(<= (+ main_offset 712) main_length), 207547#(<= (+ main_offset 684) main_length), 207546#(<= (+ main_offset 688) main_length), 207545#(<= (+ main_offset 692) main_length), 207544#(<= (+ main_offset 696) main_length), 207551#(<= (+ main_offset 668) main_length), 207550#(<= (+ main_offset 672) main_length), 207549#(<= (+ main_offset 676) main_length), 207548#(<= (+ main_offset 680) main_length), 207555#(<= (+ main_offset 652) main_length), 207554#(<= (+ main_offset 656) main_length), 207553#(<= (+ main_offset 660) main_length), 207552#(<= (+ main_offset 664) main_length), 207559#(<= (+ main_offset 636) main_length), 207558#(<= (+ main_offset 640) main_length), 207557#(<= (+ main_offset 644) main_length), 207556#(<= (+ main_offset 648) main_length), 207563#(<= (+ main_offset 620) main_length), 207562#(<= (+ main_offset 624) main_length), 207561#(<= (+ main_offset 628) main_length), 207560#(<= (+ main_offset 632) main_length), 207567#(<= (+ main_offset 604) main_length), 207566#(<= (+ main_offset 608) main_length), 207565#(<= (+ main_offset 612) main_length), 207564#(<= (+ main_offset 616) main_length), 207571#(<= (+ main_offset 588) main_length), 207570#(<= (+ main_offset 592) main_length), 207569#(<= (+ main_offset 596) main_length), 207568#(<= (+ main_offset 600) main_length), 207575#(<= (+ main_offset 572) main_length), 207574#(<= (+ main_offset 576) main_length), 207573#(<= (+ main_offset 580) main_length), 207572#(<= (+ main_offset 584) main_length), 207579#(<= (+ main_offset 556) main_length), 207578#(<= (+ main_offset 560) main_length), 207577#(<= (+ main_offset 564) main_length), 207576#(<= (+ main_offset 568) main_length), 207583#(<= (+ main_offset 540) main_length), 207582#(<= (+ main_offset 544) main_length), 207581#(<= (+ main_offset 548) main_length), 207580#(<= (+ main_offset 552) main_length), 207587#(<= (+ main_offset 524) main_length), 207586#(<= (+ main_offset 528) main_length), 207585#(<= (+ main_offset 532) main_length), 207584#(<= (+ main_offset 536) main_length), 207591#(<= (+ main_offset 508) main_length), 207590#(<= (+ main_offset 512) main_length), 207589#(<= (+ main_offset 516) main_length), 207588#(<= (+ main_offset 520) main_length), 207595#(<= (+ main_offset 492) main_length), 207594#(<= (+ main_offset 496) main_length), 207593#(<= (+ main_offset 500) main_length), 207592#(<= (+ main_offset 504) main_length), 207599#(<= (+ main_offset 476) main_length), 207598#(<= (+ main_offset 480) main_length), 207597#(<= (+ main_offset 484) main_length), 207596#(<= (+ main_offset 488) main_length), 207603#(<= (+ main_offset 460) main_length), 207602#(<= (+ main_offset 464) main_length), 207601#(<= (+ main_offset 468) main_length), 207600#(<= (+ main_offset 472) main_length), 207607#(<= (+ main_offset 444) main_length), 207606#(<= (+ main_offset 448) main_length), 207605#(<= (+ main_offset 452) main_length), 207604#(<= (+ main_offset 456) main_length), 207611#(<= (+ main_offset 428) main_length), 207610#(<= (+ main_offset 432) main_length), 207609#(<= (+ main_offset 436) main_length), 207608#(<= (+ main_offset 440) main_length), 207615#(<= (+ main_offset 412) main_length), 207614#(<= (+ main_offset 416) main_length), 207613#(<= (+ main_offset 420) main_length), 207612#(<= (+ main_offset 424) main_length), 207619#(<= (+ main_offset 396) main_length), 207618#(<= (+ main_offset 400) main_length), 207617#(<= (+ main_offset 404) main_length), 207616#(<= (+ main_offset 408) main_length), 207623#(<= (+ main_offset 380) main_length), 207622#(<= (+ main_offset 384) main_length), 207621#(<= (+ main_offset 388) main_length), 207620#(<= (+ main_offset 392) main_length), 207627#(<= (+ main_offset 364) main_length), 207626#(<= (+ main_offset 368) main_length), 207625#(<= (+ main_offset 372) main_length), 207624#(<= (+ main_offset 376) main_length), 207631#(<= (+ main_offset 348) main_length), 207630#(<= (+ main_offset 352) main_length), 207629#(<= (+ main_offset 356) main_length), 207628#(<= (+ main_offset 360) main_length), 207635#(<= (+ main_offset 332) main_length), 207634#(<= (+ main_offset 336) main_length), 207633#(<= (+ main_offset 340) main_length), 207632#(<= (+ main_offset 344) main_length), 207639#(<= (+ main_offset 316) main_length), 207638#(<= (+ main_offset 320) main_length), 207637#(<= (+ main_offset 324) main_length), 207636#(<= (+ main_offset 328) main_length), 207643#(<= (+ main_offset 300) main_length), 207642#(<= (+ main_offset 304) main_length), 207641#(<= (+ main_offset 308) main_length), 207640#(<= (+ main_offset 312) main_length), 207647#(<= (+ main_offset 284) main_length), 207646#(<= (+ main_offset 288) main_length), 207645#(<= (+ main_offset 292) main_length), 207644#(<= (+ main_offset 296) main_length), 207651#(<= (+ main_offset 268) main_length), 207650#(<= (+ main_offset 272) main_length), 207649#(<= (+ main_offset 276) main_length), 207648#(<= (+ main_offset 280) main_length), 207655#(<= (+ main_offset 252) main_length), 207654#(<= (+ main_offset 256) main_length), 207653#(<= (+ main_offset 260) main_length), 207652#(<= (+ main_offset 264) main_length), 207659#(<= (+ main_offset 236) main_length), 207658#(<= (+ main_offset 240) main_length), 207657#(<= (+ main_offset 244) main_length), 207656#(<= (+ main_offset 248) main_length), 207663#(<= (+ main_offset 220) main_length), 207662#(<= (+ main_offset 224) main_length), 207661#(<= (+ main_offset 228) main_length), 207660#(<= (+ main_offset 232) main_length), 207667#(<= (+ main_offset 204) main_length), 207666#(<= (+ main_offset 208) main_length), 207665#(<= (+ main_offset 212) main_length), 207664#(<= (+ main_offset 216) main_length), 207668#(<= (+ main_offset 200) main_length)] [2018-07-23 13:55:28,784 INFO L134 CoverageAnalysis]: Checked inductivity of 45156 backedges. 0 proven. 45156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:28,784 INFO L450 AbstractCegarLoop]: Interpolant automaton has 215 states [2018-07-23 13:55:28,785 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 215 interpolants. [2018-07-23 13:55:28,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23005, Invalid=23005, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:55:28,786 INFO L87 Difference]: Start difference. First operand 428 states and 428 transitions. Second operand 215 states. [2018-07-23 13:55:30,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:30,373 INFO L93 Difference]: Finished difference Result 431 states and 431 transitions. [2018-07-23 13:55:30,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2018-07-23 13:55:30,373 INFO L78 Accepts]: Start accepts. Automaton has 215 states. Word has length 427 [2018-07-23 13:55:30,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:30,374 INFO L225 Difference]: With dead ends: 431 [2018-07-23 13:55:30,374 INFO L226 Difference]: Without dead ends: 430 [2018-07-23 13:55:30,375 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23005, Invalid=23005, Unknown=0, NotChecked=0, Total=46010 [2018-07-23 13:55:30,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2018-07-23 13:55:30,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2018-07-23 13:55:30,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2018-07-23 13:55:30,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 430 transitions. [2018-07-23 13:55:30,379 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 430 transitions. Word has length 427 [2018-07-23 13:55:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:30,380 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 430 transitions. [2018-07-23 13:55:30,380 INFO L472 AbstractCegarLoop]: Interpolant automaton has 215 states. [2018-07-23 13:55:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 430 transitions. [2018-07-23 13:55:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-07-23 13:55:30,381 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:30,381 INFO L357 BasicCegarLoop]: trace histogram [214, 213, 1, 1] [2018-07-23 13:55:30,381 INFO L414 AbstractCegarLoop]: === Iteration 214 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:30,381 INFO L82 PathProgramCache]: Analyzing trace with hash -38371638, now seen corresponding path program 213 times [2018-07-23 13:55:30,381 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 45582 backedges. 0 proven. 45582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,336 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:32,336 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [214] total 214 [2018-07-23 13:55:32,336 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:32,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,337 INFO L185 omatonBuilderFactory]: Interpolants [209411#(<= (+ main_offset 976) main_length), 209410#(<= (+ main_offset 980) main_length), 209409#(<= (+ main_offset 984) main_length), 209408#(<= (+ main_offset 988) main_length), 209415#(<= (+ main_offset 960) main_length), 209414#(<= (+ main_offset 964) main_length), 209413#(<= (+ main_offset 968) main_length), 209412#(<= (+ main_offset 972) main_length), 209419#(<= (+ main_offset 944) main_length), 209418#(<= (+ main_offset 948) main_length), 209417#(<= (+ main_offset 952) main_length), 209416#(<= (+ main_offset 956) main_length), 209423#(<= (+ main_offset 928) main_length), 209422#(<= (+ main_offset 932) main_length), 209421#(<= (+ main_offset 936) main_length), 209420#(<= (+ main_offset 940) main_length), 209427#(<= (+ main_offset 912) main_length), 209426#(<= (+ main_offset 916) main_length), 209425#(<= (+ main_offset 920) main_length), 209424#(<= (+ main_offset 924) main_length), 209431#(<= (+ main_offset 896) main_length), 209430#(<= (+ main_offset 900) main_length), 209429#(<= (+ main_offset 904) main_length), 209428#(<= (+ main_offset 908) main_length), 209435#(<= (+ main_offset 880) main_length), 209434#(<= (+ main_offset 884) main_length), 209433#(<= (+ main_offset 888) main_length), 209432#(<= (+ main_offset 892) main_length), 209439#(<= (+ main_offset 864) main_length), 209438#(<= (+ main_offset 868) main_length), 209437#(<= (+ main_offset 872) main_length), 209436#(<= (+ main_offset 876) main_length), 209443#(<= (+ main_offset 848) main_length), 209442#(<= (+ main_offset 852) main_length), 209441#(<= (+ main_offset 856) main_length), 209440#(<= (+ main_offset 860) main_length), 209447#(<= (+ main_offset 832) main_length), 209446#(<= (+ main_offset 836) main_length), 209445#(<= (+ main_offset 840) main_length), 209444#(<= (+ main_offset 844) main_length), 209451#(<= (+ main_offset 816) main_length), 209450#(<= (+ main_offset 820) main_length), 209449#(<= (+ main_offset 824) main_length), 209448#(<= (+ main_offset 828) main_length), 209455#(<= (+ main_offset 800) main_length), 209454#(<= (+ main_offset 804) main_length), 209453#(<= (+ main_offset 808) main_length), 209452#(<= (+ main_offset 812) main_length), 209459#(<= (+ main_offset 784) main_length), 209458#(<= (+ main_offset 788) main_length), 209457#(<= (+ main_offset 792) main_length), 209456#(<= (+ main_offset 796) main_length), 209463#(<= (+ main_offset 768) main_length), 209462#(<= (+ main_offset 772) main_length), 209461#(<= (+ main_offset 776) main_length), 209460#(<= (+ main_offset 780) main_length), 209467#(<= (+ main_offset 752) main_length), 209466#(<= (+ main_offset 756) main_length), 209465#(<= (+ main_offset 760) main_length), 209464#(<= (+ main_offset 764) main_length), 209471#(<= (+ main_offset 736) main_length), 209470#(<= (+ main_offset 740) main_length), 209469#(<= (+ main_offset 744) main_length), 209468#(<= (+ main_offset 748) main_length), 209475#(<= (+ main_offset 720) main_length), 209474#(<= (+ main_offset 724) main_length), 209473#(<= (+ main_offset 728) main_length), 209472#(<= (+ main_offset 732) main_length), 209479#(<= (+ main_offset 704) main_length), 209478#(<= (+ main_offset 708) main_length), 209477#(<= (+ main_offset 712) main_length), 209476#(<= (+ main_offset 716) main_length), 209483#(<= (+ main_offset 688) main_length), 209482#(<= (+ main_offset 692) main_length), 209481#(<= (+ main_offset 696) main_length), 209480#(<= (+ main_offset 700) main_length), 209487#(<= (+ main_offset 672) main_length), 209486#(<= (+ main_offset 676) main_length), 209485#(<= (+ main_offset 680) main_length), 209484#(<= (+ main_offset 684) main_length), 209491#(<= (+ main_offset 656) main_length), 209490#(<= (+ main_offset 660) main_length), 209489#(<= (+ main_offset 664) main_length), 209488#(<= (+ main_offset 668) main_length), 209495#(<= (+ main_offset 640) main_length), 209494#(<= (+ main_offset 644) main_length), 209493#(<= (+ main_offset 648) main_length), 209492#(<= (+ main_offset 652) main_length), 209499#(<= (+ main_offset 624) main_length), 209498#(<= (+ main_offset 628) main_length), 209497#(<= (+ main_offset 632) main_length), 209496#(<= (+ main_offset 636) main_length), 209503#(<= (+ main_offset 608) main_length), 209502#(<= (+ main_offset 612) main_length), 209501#(<= (+ main_offset 616) main_length), 209500#(<= (+ main_offset 620) main_length), 209507#(<= (+ main_offset 592) main_length), 209506#(<= (+ main_offset 596) main_length), 209505#(<= (+ main_offset 600) main_length), 209504#(<= (+ main_offset 604) main_length), 209511#(<= (+ main_offset 576) main_length), 209510#(<= (+ main_offset 580) main_length), 209509#(<= (+ main_offset 584) main_length), 209508#(<= (+ main_offset 588) main_length), 209515#(<= (+ main_offset 560) main_length), 209514#(<= (+ main_offset 564) main_length), 209513#(<= (+ main_offset 568) main_length), 209512#(<= (+ main_offset 572) main_length), 209519#(<= (+ main_offset 544) main_length), 209518#(<= (+ main_offset 548) main_length), 209517#(<= (+ main_offset 552) main_length), 209516#(<= (+ main_offset 556) main_length), 209523#(<= (+ main_offset 528) main_length), 209522#(<= (+ main_offset 532) main_length), 209521#(<= (+ main_offset 536) main_length), 209520#(<= (+ main_offset 540) main_length), 209527#(<= (+ main_offset 512) main_length), 209526#(<= (+ main_offset 516) main_length), 209525#(<= (+ main_offset 520) main_length), 209524#(<= (+ main_offset 524) main_length), 209531#(<= (+ main_offset 496) main_length), 209530#(<= (+ main_offset 500) main_length), 209529#(<= (+ main_offset 504) main_length), 209528#(<= (+ main_offset 508) main_length), 209535#(<= (+ main_offset 480) main_length), 209534#(<= (+ main_offset 484) main_length), 209533#(<= (+ main_offset 488) main_length), 209532#(<= (+ main_offset 492) main_length), 209539#(<= (+ main_offset 464) main_length), 209538#(<= (+ main_offset 468) main_length), 209537#(<= (+ main_offset 472) main_length), 209536#(<= (+ main_offset 476) main_length), 209543#(<= (+ main_offset 448) main_length), 209542#(<= (+ main_offset 452) main_length), 209541#(<= (+ main_offset 456) main_length), 209540#(<= (+ main_offset 460) main_length), 209547#(<= (+ main_offset 432) main_length), 209546#(<= (+ main_offset 436) main_length), 209545#(<= (+ main_offset 440) main_length), 209544#(<= (+ main_offset 444) main_length), 209551#(<= (+ main_offset 416) main_length), 209550#(<= (+ main_offset 420) main_length), 209549#(<= (+ main_offset 424) main_length), 209548#(<= (+ main_offset 428) main_length), 209555#(<= (+ main_offset 400) main_length), 209554#(<= (+ main_offset 404) main_length), 209553#(<= (+ main_offset 408) main_length), 209552#(<= (+ main_offset 412) main_length), 209559#(<= (+ main_offset 384) main_length), 209558#(<= (+ main_offset 388) main_length), 209557#(<= (+ main_offset 392) main_length), 209556#(<= (+ main_offset 396) main_length), 209563#(<= (+ main_offset 368) main_length), 209562#(<= (+ main_offset 372) main_length), 209561#(<= (+ main_offset 376) main_length), 209560#(<= (+ main_offset 380) main_length), 209567#(<= (+ main_offset 352) main_length), 209566#(<= (+ main_offset 356) main_length), 209565#(<= (+ main_offset 360) main_length), 209564#(<= (+ main_offset 364) main_length), 209571#(<= (+ main_offset 336) main_length), 209570#(<= (+ main_offset 340) main_length), 209569#(<= (+ main_offset 344) main_length), 209568#(<= (+ main_offset 348) main_length), 209575#(<= (+ main_offset 320) main_length), 209574#(<= (+ main_offset 324) main_length), 209573#(<= (+ main_offset 328) main_length), 209572#(<= (+ main_offset 332) main_length), 209579#(<= (+ main_offset 304) main_length), 209578#(<= (+ main_offset 308) main_length), 209577#(<= (+ main_offset 312) main_length), 209576#(<= (+ main_offset 316) main_length), 209583#(<= (+ main_offset 288) main_length), 209582#(<= (+ main_offset 292) main_length), 209581#(<= (+ main_offset 296) main_length), 209580#(<= (+ main_offset 300) main_length), 209587#(<= (+ main_offset 272) main_length), 209586#(<= (+ main_offset 276) main_length), 209585#(<= (+ main_offset 280) main_length), 209584#(<= (+ main_offset 284) main_length), 209591#(<= (+ main_offset 256) main_length), 209590#(<= (+ main_offset 260) main_length), 209589#(<= (+ main_offset 264) main_length), 209588#(<= (+ main_offset 268) main_length), 209595#(<= (+ main_offset 240) main_length), 209594#(<= (+ main_offset 244) main_length), 209593#(<= (+ main_offset 248) main_length), 209592#(<= (+ main_offset 252) main_length), 209599#(<= (+ main_offset 224) main_length), 209598#(<= (+ main_offset 228) main_length), 209597#(<= (+ main_offset 232) main_length), 209596#(<= (+ main_offset 236) main_length), 209603#(<= (+ main_offset 208) main_length), 209602#(<= (+ main_offset 212) main_length), 209601#(<= (+ main_offset 216) main_length), 209600#(<= (+ main_offset 220) main_length), 209606#(<= (+ main_offset 196) main_length), 209605#(<= (+ main_offset 200) main_length), 209604#(<= (+ main_offset 204) main_length), 209391#true, 209395#(<= (+ main_offset 1040) main_length), 209394#(<= (+ main_offset 1044) main_length), 209393#(<= (+ main_offset 1048) main_length), 209392#false, 209399#(<= (+ main_offset 1024) main_length), 209398#(<= (+ main_offset 1028) main_length), 209397#(<= (+ main_offset 1032) main_length), 209396#(<= (+ main_offset 1036) main_length), 209403#(<= (+ main_offset 1008) main_length), 209402#(<= (+ main_offset 1012) main_length), 209401#(<= (+ main_offset 1016) main_length), 209400#(<= (+ main_offset 1020) main_length), 209407#(<= (+ main_offset 992) main_length), 209406#(<= (+ main_offset 996) main_length), 209405#(<= (+ main_offset 1000) main_length), 209404#(<= (+ main_offset 1004) main_length)] [2018-07-23 13:55:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 45582 backedges. 0 proven. 45582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:32,339 INFO L450 AbstractCegarLoop]: Interpolant automaton has 216 states [2018-07-23 13:55:32,343 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2018-07-23 13:55:32,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23220, Invalid=23220, Unknown=0, NotChecked=0, Total=46440 [2018-07-23 13:55:32,344 INFO L87 Difference]: Start difference. First operand 430 states and 430 transitions. Second operand 216 states. [2018-07-23 13:55:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:34,961 INFO L93 Difference]: Finished difference Result 433 states and 433 transitions. [2018-07-23 13:55:34,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2018-07-23 13:55:34,961 INFO L78 Accepts]: Start accepts. Automaton has 216 states. Word has length 429 [2018-07-23 13:55:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:34,962 INFO L225 Difference]: With dead ends: 433 [2018-07-23 13:55:34,962 INFO L226 Difference]: Without dead ends: 432 [2018-07-23 13:55:34,964 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=23220, Invalid=23220, Unknown=0, NotChecked=0, Total=46440 [2018-07-23 13:55:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-07-23 13:55:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 432. [2018-07-23 13:55:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2018-07-23 13:55:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 432 transitions. [2018-07-23 13:55:34,969 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 432 transitions. Word has length 429 [2018-07-23 13:55:34,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:34,969 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 432 transitions. [2018-07-23 13:55:34,969 INFO L472 AbstractCegarLoop]: Interpolant automaton has 216 states. [2018-07-23 13:55:34,969 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 432 transitions. [2018-07-23 13:55:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2018-07-23 13:55:34,971 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:34,971 INFO L357 BasicCegarLoop]: trace histogram [215, 214, 1, 1] [2018-07-23 13:55:34,971 INFO L414 AbstractCegarLoop]: === Iteration 215 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:34,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1779562636, now seen corresponding path program 214 times [2018-07-23 13:55:34,971 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 46010 backedges. 0 proven. 46010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,905 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:36,905 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [215] total 215 [2018-07-23 13:55:36,905 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:36,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,906 INFO L185 omatonBuilderFactory]: Interpolants [211459#(<= (+ main_offset 568) main_length), 211458#(<= (+ main_offset 572) main_length), 211457#(<= (+ main_offset 576) main_length), 211456#(<= (+ main_offset 580) main_length), 211463#(<= (+ main_offset 552) main_length), 211462#(<= (+ main_offset 556) main_length), 211461#(<= (+ main_offset 560) main_length), 211460#(<= (+ main_offset 564) main_length), 211467#(<= (+ main_offset 536) main_length), 211466#(<= (+ main_offset 540) main_length), 211465#(<= (+ main_offset 544) main_length), 211464#(<= (+ main_offset 548) main_length), 211471#(<= (+ main_offset 520) main_length), 211470#(<= (+ main_offset 524) main_length), 211469#(<= (+ main_offset 528) main_length), 211468#(<= (+ main_offset 532) main_length), 211475#(<= (+ main_offset 504) main_length), 211474#(<= (+ main_offset 508) main_length), 211473#(<= (+ main_offset 512) main_length), 211472#(<= (+ main_offset 516) main_length), 211479#(<= (+ main_offset 488) main_length), 211478#(<= (+ main_offset 492) main_length), 211477#(<= (+ main_offset 496) main_length), 211476#(<= (+ main_offset 500) main_length), 211483#(<= (+ main_offset 472) main_length), 211482#(<= (+ main_offset 476) main_length), 211481#(<= (+ main_offset 480) main_length), 211480#(<= (+ main_offset 484) main_length), 211487#(<= (+ main_offset 456) main_length), 211486#(<= (+ main_offset 460) main_length), 211485#(<= (+ main_offset 464) main_length), 211484#(<= (+ main_offset 468) main_length), 211491#(<= (+ main_offset 440) main_length), 211490#(<= (+ main_offset 444) main_length), 211489#(<= (+ main_offset 448) main_length), 211488#(<= (+ main_offset 452) main_length), 211495#(<= (+ main_offset 424) main_length), 211494#(<= (+ main_offset 428) main_length), 211493#(<= (+ main_offset 432) main_length), 211492#(<= (+ main_offset 436) main_length), 211499#(<= (+ main_offset 408) main_length), 211498#(<= (+ main_offset 412) main_length), 211497#(<= (+ main_offset 416) main_length), 211496#(<= (+ main_offset 420) main_length), 211503#(<= (+ main_offset 392) main_length), 211502#(<= (+ main_offset 396) main_length), 211501#(<= (+ main_offset 400) main_length), 211500#(<= (+ main_offset 404) main_length), 211507#(<= (+ main_offset 376) main_length), 211506#(<= (+ main_offset 380) main_length), 211505#(<= (+ main_offset 384) main_length), 211504#(<= (+ main_offset 388) main_length), 211511#(<= (+ main_offset 360) main_length), 211510#(<= (+ main_offset 364) main_length), 211509#(<= (+ main_offset 368) main_length), 211508#(<= (+ main_offset 372) main_length), 211515#(<= (+ main_offset 344) main_length), 211514#(<= (+ main_offset 348) main_length), 211513#(<= (+ main_offset 352) main_length), 211512#(<= (+ main_offset 356) main_length), 211519#(<= (+ main_offset 328) main_length), 211518#(<= (+ main_offset 332) main_length), 211517#(<= (+ main_offset 336) main_length), 211516#(<= (+ main_offset 340) main_length), 211523#(<= (+ main_offset 312) main_length), 211522#(<= (+ main_offset 316) main_length), 211521#(<= (+ main_offset 320) main_length), 211520#(<= (+ main_offset 324) main_length), 211527#(<= (+ main_offset 296) main_length), 211526#(<= (+ main_offset 300) main_length), 211525#(<= (+ main_offset 304) main_length), 211524#(<= (+ main_offset 308) main_length), 211531#(<= (+ main_offset 280) main_length), 211530#(<= (+ main_offset 284) main_length), 211529#(<= (+ main_offset 288) main_length), 211528#(<= (+ main_offset 292) main_length), 211535#(<= (+ main_offset 264) main_length), 211534#(<= (+ main_offset 268) main_length), 211533#(<= (+ main_offset 272) main_length), 211532#(<= (+ main_offset 276) main_length), 211539#(<= (+ main_offset 248) main_length), 211538#(<= (+ main_offset 252) main_length), 211537#(<= (+ main_offset 256) main_length), 211536#(<= (+ main_offset 260) main_length), 211543#(<= (+ main_offset 232) main_length), 211542#(<= (+ main_offset 236) main_length), 211541#(<= (+ main_offset 240) main_length), 211540#(<= (+ main_offset 244) main_length), 211547#(<= (+ main_offset 216) main_length), 211546#(<= (+ main_offset 220) main_length), 211545#(<= (+ main_offset 224) main_length), 211544#(<= (+ main_offset 228) main_length), 211551#(<= (+ main_offset 200) main_length), 211550#(<= (+ main_offset 204) main_length), 211549#(<= (+ main_offset 208) main_length), 211548#(<= (+ main_offset 212) main_length), 211553#(<= (+ main_offset 192) main_length), 211552#(<= (+ main_offset 196) main_length), 211339#(<= (+ main_offset 1048) main_length), 211338#false, 211337#true, 211343#(<= (+ main_offset 1032) main_length), 211342#(<= (+ main_offset 1036) main_length), 211341#(<= (+ main_offset 1040) main_length), 211340#(<= (+ main_offset 1044) main_length), 211347#(<= (+ main_offset 1016) main_length), 211346#(<= (+ main_offset 1020) main_length), 211345#(<= (+ main_offset 1024) main_length), 211344#(<= (+ main_offset 1028) main_length), 211351#(<= (+ main_offset 1000) main_length), 211350#(<= (+ main_offset 1004) main_length), 211349#(<= (+ main_offset 1008) main_length), 211348#(<= (+ main_offset 1012) main_length), 211355#(<= (+ main_offset 984) main_length), 211354#(<= (+ main_offset 988) main_length), 211353#(<= (+ main_offset 992) main_length), 211352#(<= (+ main_offset 996) main_length), 211359#(<= (+ main_offset 968) main_length), 211358#(<= (+ main_offset 972) main_length), 211357#(<= (+ main_offset 976) main_length), 211356#(<= (+ main_offset 980) main_length), 211363#(<= (+ main_offset 952) main_length), 211362#(<= (+ main_offset 956) main_length), 211361#(<= (+ main_offset 960) main_length), 211360#(<= (+ main_offset 964) main_length), 211367#(<= (+ main_offset 936) main_length), 211366#(<= (+ main_offset 940) main_length), 211365#(<= (+ main_offset 944) main_length), 211364#(<= (+ main_offset 948) main_length), 211371#(<= (+ main_offset 920) main_length), 211370#(<= (+ main_offset 924) main_length), 211369#(<= (+ main_offset 928) main_length), 211368#(<= (+ main_offset 932) main_length), 211375#(<= (+ main_offset 904) main_length), 211374#(<= (+ main_offset 908) main_length), 211373#(<= (+ main_offset 912) main_length), 211372#(<= (+ main_offset 916) main_length), 211379#(<= (+ main_offset 888) main_length), 211378#(<= (+ main_offset 892) main_length), 211377#(<= (+ main_offset 896) main_length), 211376#(<= (+ main_offset 900) main_length), 211383#(<= (+ main_offset 872) main_length), 211382#(<= (+ main_offset 876) main_length), 211381#(<= (+ main_offset 880) main_length), 211380#(<= (+ main_offset 884) main_length), 211387#(<= (+ main_offset 856) main_length), 211386#(<= (+ main_offset 860) main_length), 211385#(<= (+ main_offset 864) main_length), 211384#(<= (+ main_offset 868) main_length), 211391#(<= (+ main_offset 840) main_length), 211390#(<= (+ main_offset 844) main_length), 211389#(<= (+ main_offset 848) main_length), 211388#(<= (+ main_offset 852) main_length), 211395#(<= (+ main_offset 824) main_length), 211394#(<= (+ main_offset 828) main_length), 211393#(<= (+ main_offset 832) main_length), 211392#(<= (+ main_offset 836) main_length), 211399#(<= (+ main_offset 808) main_length), 211398#(<= (+ main_offset 812) main_length), 211397#(<= (+ main_offset 816) main_length), 211396#(<= (+ main_offset 820) main_length), 211403#(<= (+ main_offset 792) main_length), 211402#(<= (+ main_offset 796) main_length), 211401#(<= (+ main_offset 800) main_length), 211400#(<= (+ main_offset 804) main_length), 211407#(<= (+ main_offset 776) main_length), 211406#(<= (+ main_offset 780) main_length), 211405#(<= (+ main_offset 784) main_length), 211404#(<= (+ main_offset 788) main_length), 211411#(<= (+ main_offset 760) main_length), 211410#(<= (+ main_offset 764) main_length), 211409#(<= (+ main_offset 768) main_length), 211408#(<= (+ main_offset 772) main_length), 211415#(<= (+ main_offset 744) main_length), 211414#(<= (+ main_offset 748) main_length), 211413#(<= (+ main_offset 752) main_length), 211412#(<= (+ main_offset 756) main_length), 211419#(<= (+ main_offset 728) main_length), 211418#(<= (+ main_offset 732) main_length), 211417#(<= (+ main_offset 736) main_length), 211416#(<= (+ main_offset 740) main_length), 211423#(<= (+ main_offset 712) main_length), 211422#(<= (+ main_offset 716) main_length), 211421#(<= (+ main_offset 720) main_length), 211420#(<= (+ main_offset 724) main_length), 211427#(<= (+ main_offset 696) main_length), 211426#(<= (+ main_offset 700) main_length), 211425#(<= (+ main_offset 704) main_length), 211424#(<= (+ main_offset 708) main_length), 211431#(<= (+ main_offset 680) main_length), 211430#(<= (+ main_offset 684) main_length), 211429#(<= (+ main_offset 688) main_length), 211428#(<= (+ main_offset 692) main_length), 211435#(<= (+ main_offset 664) main_length), 211434#(<= (+ main_offset 668) main_length), 211433#(<= (+ main_offset 672) main_length), 211432#(<= (+ main_offset 676) main_length), 211439#(<= (+ main_offset 648) main_length), 211438#(<= (+ main_offset 652) main_length), 211437#(<= (+ main_offset 656) main_length), 211436#(<= (+ main_offset 660) main_length), 211443#(<= (+ main_offset 632) main_length), 211442#(<= (+ main_offset 636) main_length), 211441#(<= (+ main_offset 640) main_length), 211440#(<= (+ main_offset 644) main_length), 211447#(<= (+ main_offset 616) main_length), 211446#(<= (+ main_offset 620) main_length), 211445#(<= (+ main_offset 624) main_length), 211444#(<= (+ main_offset 628) main_length), 211451#(<= (+ main_offset 600) main_length), 211450#(<= (+ main_offset 604) main_length), 211449#(<= (+ main_offset 608) main_length), 211448#(<= (+ main_offset 612) main_length), 211455#(<= (+ main_offset 584) main_length), 211454#(<= (+ main_offset 588) main_length), 211453#(<= (+ main_offset 592) main_length), 211452#(<= (+ main_offset 596) main_length)] [2018-07-23 13:55:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 46010 backedges. 0 proven. 46010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:36,908 INFO L450 AbstractCegarLoop]: Interpolant automaton has 217 states [2018-07-23 13:55:36,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 217 interpolants. [2018-07-23 13:55:36,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23436, Invalid=23436, Unknown=0, NotChecked=0, Total=46872 [2018-07-23 13:55:36,913 INFO L87 Difference]: Start difference. First operand 432 states and 432 transitions. Second operand 217 states. [2018-07-23 13:55:37,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:37,672 INFO L93 Difference]: Finished difference Result 435 states and 435 transitions. [2018-07-23 13:55:37,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2018-07-23 13:55:37,672 INFO L78 Accepts]: Start accepts. Automaton has 217 states. Word has length 431 [2018-07-23 13:55:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:37,673 INFO L225 Difference]: With dead ends: 435 [2018-07-23 13:55:37,673 INFO L226 Difference]: Without dead ends: 434 [2018-07-23 13:55:37,676 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23436, Invalid=23436, Unknown=0, NotChecked=0, Total=46872 [2018-07-23 13:55:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-07-23 13:55:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-07-23 13:55:37,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-07-23 13:55:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 434 transitions. [2018-07-23 13:55:37,681 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 434 transitions. Word has length 431 [2018-07-23 13:55:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:37,681 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 434 transitions. [2018-07-23 13:55:37,681 INFO L472 AbstractCegarLoop]: Interpolant automaton has 217 states. [2018-07-23 13:55:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 434 transitions. [2018-07-23 13:55:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-07-23 13:55:37,682 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:37,682 INFO L357 BasicCegarLoop]: trace histogram [216, 215, 1, 1] [2018-07-23 13:55:37,683 INFO L414 AbstractCegarLoop]: === Iteration 216 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:37,683 INFO L82 PathProgramCache]: Analyzing trace with hash 762710478, now seen corresponding path program 215 times [2018-07-23 13:55:37,683 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 46440 backedges. 0 proven. 46440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,665 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:39,665 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [216] total 216 [2018-07-23 13:55:39,665 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,666 INFO L185 omatonBuilderFactory]: Interpolants [213507#(<= (+ main_offset 196) main_length), 213506#(<= (+ main_offset 200) main_length), 213505#(<= (+ main_offset 204) main_length), 213504#(<= (+ main_offset 208) main_length), 213509#(<= (+ main_offset 188) main_length), 213508#(<= (+ main_offset 192) main_length), 213295#(<= (+ main_offset 1044) main_length), 213294#(<= (+ main_offset 1048) main_length), 213293#false, 213292#true, 213299#(<= (+ main_offset 1028) main_length), 213298#(<= (+ main_offset 1032) main_length), 213297#(<= (+ main_offset 1036) main_length), 213296#(<= (+ main_offset 1040) main_length), 213303#(<= (+ main_offset 1012) main_length), 213302#(<= (+ main_offset 1016) main_length), 213301#(<= (+ main_offset 1020) main_length), 213300#(<= (+ main_offset 1024) main_length), 213307#(<= (+ main_offset 996) main_length), 213306#(<= (+ main_offset 1000) main_length), 213305#(<= (+ main_offset 1004) main_length), 213304#(<= (+ main_offset 1008) main_length), 213311#(<= (+ main_offset 980) main_length), 213310#(<= (+ main_offset 984) main_length), 213309#(<= (+ main_offset 988) main_length), 213308#(<= (+ main_offset 992) main_length), 213315#(<= (+ main_offset 964) main_length), 213314#(<= (+ main_offset 968) main_length), 213313#(<= (+ main_offset 972) main_length), 213312#(<= (+ main_offset 976) main_length), 213319#(<= (+ main_offset 948) main_length), 213318#(<= (+ main_offset 952) main_length), 213317#(<= (+ main_offset 956) main_length), 213316#(<= (+ main_offset 960) main_length), 213323#(<= (+ main_offset 932) main_length), 213322#(<= (+ main_offset 936) main_length), 213321#(<= (+ main_offset 940) main_length), 213320#(<= (+ main_offset 944) main_length), 213327#(<= (+ main_offset 916) main_length), 213326#(<= (+ main_offset 920) main_length), 213325#(<= (+ main_offset 924) main_length), 213324#(<= (+ main_offset 928) main_length), 213331#(<= (+ main_offset 900) main_length), 213330#(<= (+ main_offset 904) main_length), 213329#(<= (+ main_offset 908) main_length), 213328#(<= (+ main_offset 912) main_length), 213335#(<= (+ main_offset 884) main_length), 213334#(<= (+ main_offset 888) main_length), 213333#(<= (+ main_offset 892) main_length), 213332#(<= (+ main_offset 896) main_length), 213339#(<= (+ main_offset 868) main_length), 213338#(<= (+ main_offset 872) main_length), 213337#(<= (+ main_offset 876) main_length), 213336#(<= (+ main_offset 880) main_length), 213343#(<= (+ main_offset 852) main_length), 213342#(<= (+ main_offset 856) main_length), 213341#(<= (+ main_offset 860) main_length), 213340#(<= (+ main_offset 864) main_length), 213347#(<= (+ main_offset 836) main_length), 213346#(<= (+ main_offset 840) main_length), 213345#(<= (+ main_offset 844) main_length), 213344#(<= (+ main_offset 848) main_length), 213351#(<= (+ main_offset 820) main_length), 213350#(<= (+ main_offset 824) main_length), 213349#(<= (+ main_offset 828) main_length), 213348#(<= (+ main_offset 832) main_length), 213355#(<= (+ main_offset 804) main_length), 213354#(<= (+ main_offset 808) main_length), 213353#(<= (+ main_offset 812) main_length), 213352#(<= (+ main_offset 816) main_length), 213359#(<= (+ main_offset 788) main_length), 213358#(<= (+ main_offset 792) main_length), 213357#(<= (+ main_offset 796) main_length), 213356#(<= (+ main_offset 800) main_length), 213363#(<= (+ main_offset 772) main_length), 213362#(<= (+ main_offset 776) main_length), 213361#(<= (+ main_offset 780) main_length), 213360#(<= (+ main_offset 784) main_length), 213367#(<= (+ main_offset 756) main_length), 213366#(<= (+ main_offset 760) main_length), 213365#(<= (+ main_offset 764) main_length), 213364#(<= (+ main_offset 768) main_length), 213371#(<= (+ main_offset 740) main_length), 213370#(<= (+ main_offset 744) main_length), 213369#(<= (+ main_offset 748) main_length), 213368#(<= (+ main_offset 752) main_length), 213375#(<= (+ main_offset 724) main_length), 213374#(<= (+ main_offset 728) main_length), 213373#(<= (+ main_offset 732) main_length), 213372#(<= (+ main_offset 736) main_length), 213379#(<= (+ main_offset 708) main_length), 213378#(<= (+ main_offset 712) main_length), 213377#(<= (+ main_offset 716) main_length), 213376#(<= (+ main_offset 720) main_length), 213383#(<= (+ main_offset 692) main_length), 213382#(<= (+ main_offset 696) main_length), 213381#(<= (+ main_offset 700) main_length), 213380#(<= (+ main_offset 704) main_length), 213387#(<= (+ main_offset 676) main_length), 213386#(<= (+ main_offset 680) main_length), 213385#(<= (+ main_offset 684) main_length), 213384#(<= (+ main_offset 688) main_length), 213391#(<= (+ main_offset 660) main_length), 213390#(<= (+ main_offset 664) main_length), 213389#(<= (+ main_offset 668) main_length), 213388#(<= (+ main_offset 672) main_length), 213395#(<= (+ main_offset 644) main_length), 213394#(<= (+ main_offset 648) main_length), 213393#(<= (+ main_offset 652) main_length), 213392#(<= (+ main_offset 656) main_length), 213399#(<= (+ main_offset 628) main_length), 213398#(<= (+ main_offset 632) main_length), 213397#(<= (+ main_offset 636) main_length), 213396#(<= (+ main_offset 640) main_length), 213403#(<= (+ main_offset 612) main_length), 213402#(<= (+ main_offset 616) main_length), 213401#(<= (+ main_offset 620) main_length), 213400#(<= (+ main_offset 624) main_length), 213407#(<= (+ main_offset 596) main_length), 213406#(<= (+ main_offset 600) main_length), 213405#(<= (+ main_offset 604) main_length), 213404#(<= (+ main_offset 608) main_length), 213411#(<= (+ main_offset 580) main_length), 213410#(<= (+ main_offset 584) main_length), 213409#(<= (+ main_offset 588) main_length), 213408#(<= (+ main_offset 592) main_length), 213415#(<= (+ main_offset 564) main_length), 213414#(<= (+ main_offset 568) main_length), 213413#(<= (+ main_offset 572) main_length), 213412#(<= (+ main_offset 576) main_length), 213419#(<= (+ main_offset 548) main_length), 213418#(<= (+ main_offset 552) main_length), 213417#(<= (+ main_offset 556) main_length), 213416#(<= (+ main_offset 560) main_length), 213423#(<= (+ main_offset 532) main_length), 213422#(<= (+ main_offset 536) main_length), 213421#(<= (+ main_offset 540) main_length), 213420#(<= (+ main_offset 544) main_length), 213427#(<= (+ main_offset 516) main_length), 213426#(<= (+ main_offset 520) main_length), 213425#(<= (+ main_offset 524) main_length), 213424#(<= (+ main_offset 528) main_length), 213431#(<= (+ main_offset 500) main_length), 213430#(<= (+ main_offset 504) main_length), 213429#(<= (+ main_offset 508) main_length), 213428#(<= (+ main_offset 512) main_length), 213435#(<= (+ main_offset 484) main_length), 213434#(<= (+ main_offset 488) main_length), 213433#(<= (+ main_offset 492) main_length), 213432#(<= (+ main_offset 496) main_length), 213439#(<= (+ main_offset 468) main_length), 213438#(<= (+ main_offset 472) main_length), 213437#(<= (+ main_offset 476) main_length), 213436#(<= (+ main_offset 480) main_length), 213443#(<= (+ main_offset 452) main_length), 213442#(<= (+ main_offset 456) main_length), 213441#(<= (+ main_offset 460) main_length), 213440#(<= (+ main_offset 464) main_length), 213447#(<= (+ main_offset 436) main_length), 213446#(<= (+ main_offset 440) main_length), 213445#(<= (+ main_offset 444) main_length), 213444#(<= (+ main_offset 448) main_length), 213451#(<= (+ main_offset 420) main_length), 213450#(<= (+ main_offset 424) main_length), 213449#(<= (+ main_offset 428) main_length), 213448#(<= (+ main_offset 432) main_length), 213455#(<= (+ main_offset 404) main_length), 213454#(<= (+ main_offset 408) main_length), 213453#(<= (+ main_offset 412) main_length), 213452#(<= (+ main_offset 416) main_length), 213459#(<= (+ main_offset 388) main_length), 213458#(<= (+ main_offset 392) main_length), 213457#(<= (+ main_offset 396) main_length), 213456#(<= (+ main_offset 400) main_length), 213463#(<= (+ main_offset 372) main_length), 213462#(<= (+ main_offset 376) main_length), 213461#(<= (+ main_offset 380) main_length), 213460#(<= (+ main_offset 384) main_length), 213467#(<= (+ main_offset 356) main_length), 213466#(<= (+ main_offset 360) main_length), 213465#(<= (+ main_offset 364) main_length), 213464#(<= (+ main_offset 368) main_length), 213471#(<= (+ main_offset 340) main_length), 213470#(<= (+ main_offset 344) main_length), 213469#(<= (+ main_offset 348) main_length), 213468#(<= (+ main_offset 352) main_length), 213475#(<= (+ main_offset 324) main_length), 213474#(<= (+ main_offset 328) main_length), 213473#(<= (+ main_offset 332) main_length), 213472#(<= (+ main_offset 336) main_length), 213479#(<= (+ main_offset 308) main_length), 213478#(<= (+ main_offset 312) main_length), 213477#(<= (+ main_offset 316) main_length), 213476#(<= (+ main_offset 320) main_length), 213483#(<= (+ main_offset 292) main_length), 213482#(<= (+ main_offset 296) main_length), 213481#(<= (+ main_offset 300) main_length), 213480#(<= (+ main_offset 304) main_length), 213487#(<= (+ main_offset 276) main_length), 213486#(<= (+ main_offset 280) main_length), 213485#(<= (+ main_offset 284) main_length), 213484#(<= (+ main_offset 288) main_length), 213491#(<= (+ main_offset 260) main_length), 213490#(<= (+ main_offset 264) main_length), 213489#(<= (+ main_offset 268) main_length), 213488#(<= (+ main_offset 272) main_length), 213495#(<= (+ main_offset 244) main_length), 213494#(<= (+ main_offset 248) main_length), 213493#(<= (+ main_offset 252) main_length), 213492#(<= (+ main_offset 256) main_length), 213499#(<= (+ main_offset 228) main_length), 213498#(<= (+ main_offset 232) main_length), 213497#(<= (+ main_offset 236) main_length), 213496#(<= (+ main_offset 240) main_length), 213503#(<= (+ main_offset 212) main_length), 213502#(<= (+ main_offset 216) main_length), 213501#(<= (+ main_offset 220) main_length), 213500#(<= (+ main_offset 224) main_length)] [2018-07-23 13:55:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 46440 backedges. 0 proven. 46440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:39,667 INFO L450 AbstractCegarLoop]: Interpolant automaton has 218 states [2018-07-23 13:55:39,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 218 interpolants. [2018-07-23 13:55:39,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23653, Invalid=23653, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:55:39,671 INFO L87 Difference]: Start difference. First operand 434 states and 434 transitions. Second operand 218 states. [2018-07-23 13:55:42,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:42,054 INFO L93 Difference]: Finished difference Result 437 states and 437 transitions. [2018-07-23 13:55:42,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 218 states. [2018-07-23 13:55:42,055 INFO L78 Accepts]: Start accepts. Automaton has 218 states. Word has length 433 [2018-07-23 13:55:42,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:42,055 INFO L225 Difference]: With dead ends: 437 [2018-07-23 13:55:42,055 INFO L226 Difference]: Without dead ends: 436 [2018-07-23 13:55:42,057 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23653, Invalid=23653, Unknown=0, NotChecked=0, Total=47306 [2018-07-23 13:55:42,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-07-23 13:55:42,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2018-07-23 13:55:42,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2018-07-23 13:55:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2018-07-23 13:55:42,062 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 433 [2018-07-23 13:55:42,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:42,062 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2018-07-23 13:55:42,062 INFO L472 AbstractCegarLoop]: Interpolant automaton has 218 states. [2018-07-23 13:55:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2018-07-23 13:55:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-07-23 13:55:42,063 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:42,063 INFO L357 BasicCegarLoop]: trace histogram [217, 216, 1, 1] [2018-07-23 13:55:42,063 INFO L414 AbstractCegarLoop]: === Iteration 217 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:42,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1474637168, now seen corresponding path program 216 times [2018-07-23 13:55:42,064 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 46872 backedges. 0 proven. 46872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,058 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:44,058 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [217] total 217 [2018-07-23 13:55:44,059 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,059 INFO L185 omatonBuilderFactory]: Interpolants [215259#(<= (+ main_offset 1044) main_length), 215258#(<= (+ main_offset 1048) main_length), 215257#false, 215256#true, 215263#(<= (+ main_offset 1028) main_length), 215262#(<= (+ main_offset 1032) main_length), 215261#(<= (+ main_offset 1036) main_length), 215260#(<= (+ main_offset 1040) main_length), 215267#(<= (+ main_offset 1012) main_length), 215266#(<= (+ main_offset 1016) main_length), 215265#(<= (+ main_offset 1020) main_length), 215264#(<= (+ main_offset 1024) main_length), 215271#(<= (+ main_offset 996) main_length), 215270#(<= (+ main_offset 1000) main_length), 215269#(<= (+ main_offset 1004) main_length), 215268#(<= (+ main_offset 1008) main_length), 215275#(<= (+ main_offset 980) main_length), 215274#(<= (+ main_offset 984) main_length), 215273#(<= (+ main_offset 988) main_length), 215272#(<= (+ main_offset 992) main_length), 215279#(<= (+ main_offset 964) main_length), 215278#(<= (+ main_offset 968) main_length), 215277#(<= (+ main_offset 972) main_length), 215276#(<= (+ main_offset 976) main_length), 215283#(<= (+ main_offset 948) main_length), 215282#(<= (+ main_offset 952) main_length), 215281#(<= (+ main_offset 956) main_length), 215280#(<= (+ main_offset 960) main_length), 215287#(<= (+ main_offset 932) main_length), 215286#(<= (+ main_offset 936) main_length), 215285#(<= (+ main_offset 940) main_length), 215284#(<= (+ main_offset 944) main_length), 215291#(<= (+ main_offset 916) main_length), 215290#(<= (+ main_offset 920) main_length), 215289#(<= (+ main_offset 924) main_length), 215288#(<= (+ main_offset 928) main_length), 215295#(<= (+ main_offset 900) main_length), 215294#(<= (+ main_offset 904) main_length), 215293#(<= (+ main_offset 908) main_length), 215292#(<= (+ main_offset 912) main_length), 215299#(<= (+ main_offset 884) main_length), 215298#(<= (+ main_offset 888) main_length), 215297#(<= (+ main_offset 892) main_length), 215296#(<= (+ main_offset 896) main_length), 215303#(<= (+ main_offset 868) main_length), 215302#(<= (+ main_offset 872) main_length), 215301#(<= (+ main_offset 876) main_length), 215300#(<= (+ main_offset 880) main_length), 215307#(<= (+ main_offset 852) main_length), 215306#(<= (+ main_offset 856) main_length), 215305#(<= (+ main_offset 860) main_length), 215304#(<= (+ main_offset 864) main_length), 215311#(<= (+ main_offset 836) main_length), 215310#(<= (+ main_offset 840) main_length), 215309#(<= (+ main_offset 844) main_length), 215308#(<= (+ main_offset 848) main_length), 215315#(<= (+ main_offset 820) main_length), 215314#(<= (+ main_offset 824) main_length), 215313#(<= (+ main_offset 828) main_length), 215312#(<= (+ main_offset 832) main_length), 215319#(<= (+ main_offset 804) main_length), 215318#(<= (+ main_offset 808) main_length), 215317#(<= (+ main_offset 812) main_length), 215316#(<= (+ main_offset 816) main_length), 215323#(<= (+ main_offset 788) main_length), 215322#(<= (+ main_offset 792) main_length), 215321#(<= (+ main_offset 796) main_length), 215320#(<= (+ main_offset 800) main_length), 215327#(<= (+ main_offset 772) main_length), 215326#(<= (+ main_offset 776) main_length), 215325#(<= (+ main_offset 780) main_length), 215324#(<= (+ main_offset 784) main_length), 215331#(<= (+ main_offset 756) main_length), 215330#(<= (+ main_offset 760) main_length), 215329#(<= (+ main_offset 764) main_length), 215328#(<= (+ main_offset 768) main_length), 215335#(<= (+ main_offset 740) main_length), 215334#(<= (+ main_offset 744) main_length), 215333#(<= (+ main_offset 748) main_length), 215332#(<= (+ main_offset 752) main_length), 215339#(<= (+ main_offset 724) main_length), 215338#(<= (+ main_offset 728) main_length), 215337#(<= (+ main_offset 732) main_length), 215336#(<= (+ main_offset 736) main_length), 215343#(<= (+ main_offset 708) main_length), 215342#(<= (+ main_offset 712) main_length), 215341#(<= (+ main_offset 716) main_length), 215340#(<= (+ main_offset 720) main_length), 215347#(<= (+ main_offset 692) main_length), 215346#(<= (+ main_offset 696) main_length), 215345#(<= (+ main_offset 700) main_length), 215344#(<= (+ main_offset 704) main_length), 215351#(<= (+ main_offset 676) main_length), 215350#(<= (+ main_offset 680) main_length), 215349#(<= (+ main_offset 684) main_length), 215348#(<= (+ main_offset 688) main_length), 215355#(<= (+ main_offset 660) main_length), 215354#(<= (+ main_offset 664) main_length), 215353#(<= (+ main_offset 668) main_length), 215352#(<= (+ main_offset 672) main_length), 215359#(<= (+ main_offset 644) main_length), 215358#(<= (+ main_offset 648) main_length), 215357#(<= (+ main_offset 652) main_length), 215356#(<= (+ main_offset 656) main_length), 215363#(<= (+ main_offset 628) main_length), 215362#(<= (+ main_offset 632) main_length), 215361#(<= (+ main_offset 636) main_length), 215360#(<= (+ main_offset 640) main_length), 215367#(<= (+ main_offset 612) main_length), 215366#(<= (+ main_offset 616) main_length), 215365#(<= (+ main_offset 620) main_length), 215364#(<= (+ main_offset 624) main_length), 215371#(<= (+ main_offset 596) main_length), 215370#(<= (+ main_offset 600) main_length), 215369#(<= (+ main_offset 604) main_length), 215368#(<= (+ main_offset 608) main_length), 215375#(<= (+ main_offset 580) main_length), 215374#(<= (+ main_offset 584) main_length), 215373#(<= (+ main_offset 588) main_length), 215372#(<= (+ main_offset 592) main_length), 215379#(<= (+ main_offset 564) main_length), 215378#(<= (+ main_offset 568) main_length), 215377#(<= (+ main_offset 572) main_length), 215376#(<= (+ main_offset 576) main_length), 215383#(<= (+ main_offset 548) main_length), 215382#(<= (+ main_offset 552) main_length), 215381#(<= (+ main_offset 556) main_length), 215380#(<= (+ main_offset 560) main_length), 215387#(<= (+ main_offset 532) main_length), 215386#(<= (+ main_offset 536) main_length), 215385#(<= (+ main_offset 540) main_length), 215384#(<= (+ main_offset 544) main_length), 215391#(<= (+ main_offset 516) main_length), 215390#(<= (+ main_offset 520) main_length), 215389#(<= (+ main_offset 524) main_length), 215388#(<= (+ main_offset 528) main_length), 215395#(<= (+ main_offset 500) main_length), 215394#(<= (+ main_offset 504) main_length), 215393#(<= (+ main_offset 508) main_length), 215392#(<= (+ main_offset 512) main_length), 215399#(<= (+ main_offset 484) main_length), 215398#(<= (+ main_offset 488) main_length), 215397#(<= (+ main_offset 492) main_length), 215396#(<= (+ main_offset 496) main_length), 215403#(<= (+ main_offset 468) main_length), 215402#(<= (+ main_offset 472) main_length), 215401#(<= (+ main_offset 476) main_length), 215400#(<= (+ main_offset 480) main_length), 215407#(<= (+ main_offset 452) main_length), 215406#(<= (+ main_offset 456) main_length), 215405#(<= (+ main_offset 460) main_length), 215404#(<= (+ main_offset 464) main_length), 215411#(<= (+ main_offset 436) main_length), 215410#(<= (+ main_offset 440) main_length), 215409#(<= (+ main_offset 444) main_length), 215408#(<= (+ main_offset 448) main_length), 215415#(<= (+ main_offset 420) main_length), 215414#(<= (+ main_offset 424) main_length), 215413#(<= (+ main_offset 428) main_length), 215412#(<= (+ main_offset 432) main_length), 215419#(<= (+ main_offset 404) main_length), 215418#(<= (+ main_offset 408) main_length), 215417#(<= (+ main_offset 412) main_length), 215416#(<= (+ main_offset 416) main_length), 215423#(<= (+ main_offset 388) main_length), 215422#(<= (+ main_offset 392) main_length), 215421#(<= (+ main_offset 396) main_length), 215420#(<= (+ main_offset 400) main_length), 215427#(<= (+ main_offset 372) main_length), 215426#(<= (+ main_offset 376) main_length), 215425#(<= (+ main_offset 380) main_length), 215424#(<= (+ main_offset 384) main_length), 215431#(<= (+ main_offset 356) main_length), 215430#(<= (+ main_offset 360) main_length), 215429#(<= (+ main_offset 364) main_length), 215428#(<= (+ main_offset 368) main_length), 215435#(<= (+ main_offset 340) main_length), 215434#(<= (+ main_offset 344) main_length), 215433#(<= (+ main_offset 348) main_length), 215432#(<= (+ main_offset 352) main_length), 215439#(<= (+ main_offset 324) main_length), 215438#(<= (+ main_offset 328) main_length), 215437#(<= (+ main_offset 332) main_length), 215436#(<= (+ main_offset 336) main_length), 215443#(<= (+ main_offset 308) main_length), 215442#(<= (+ main_offset 312) main_length), 215441#(<= (+ main_offset 316) main_length), 215440#(<= (+ main_offset 320) main_length), 215447#(<= (+ main_offset 292) main_length), 215446#(<= (+ main_offset 296) main_length), 215445#(<= (+ main_offset 300) main_length), 215444#(<= (+ main_offset 304) main_length), 215451#(<= (+ main_offset 276) main_length), 215450#(<= (+ main_offset 280) main_length), 215449#(<= (+ main_offset 284) main_length), 215448#(<= (+ main_offset 288) main_length), 215455#(<= (+ main_offset 260) main_length), 215454#(<= (+ main_offset 264) main_length), 215453#(<= (+ main_offset 268) main_length), 215452#(<= (+ main_offset 272) main_length), 215459#(<= (+ main_offset 244) main_length), 215458#(<= (+ main_offset 248) main_length), 215457#(<= (+ main_offset 252) main_length), 215456#(<= (+ main_offset 256) main_length), 215463#(<= (+ main_offset 228) main_length), 215462#(<= (+ main_offset 232) main_length), 215461#(<= (+ main_offset 236) main_length), 215460#(<= (+ main_offset 240) main_length), 215467#(<= (+ main_offset 212) main_length), 215466#(<= (+ main_offset 216) main_length), 215465#(<= (+ main_offset 220) main_length), 215464#(<= (+ main_offset 224) main_length), 215471#(<= (+ main_offset 196) main_length), 215470#(<= (+ main_offset 200) main_length), 215469#(<= (+ main_offset 204) main_length), 215468#(<= (+ main_offset 208) main_length), 215474#(<= (+ main_offset 184) main_length), 215473#(<= (+ main_offset 188) main_length), 215472#(<= (+ main_offset 192) main_length)] [2018-07-23 13:55:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 46872 backedges. 0 proven. 46872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:44,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 219 states [2018-07-23 13:55:44,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2018-07-23 13:55:44,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23871, Invalid=23871, Unknown=0, NotChecked=0, Total=47742 [2018-07-23 13:55:44,063 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand 219 states. [2018-07-23 13:55:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:46,244 INFO L93 Difference]: Finished difference Result 439 states and 439 transitions. [2018-07-23 13:55:46,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2018-07-23 13:55:46,245 INFO L78 Accepts]: Start accepts. Automaton has 219 states. Word has length 435 [2018-07-23 13:55:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:46,245 INFO L225 Difference]: With dead ends: 439 [2018-07-23 13:55:46,245 INFO L226 Difference]: Without dead ends: 438 [2018-07-23 13:55:46,246 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23871, Invalid=23871, Unknown=0, NotChecked=0, Total=47742 [2018-07-23 13:55:46,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2018-07-23 13:55:46,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2018-07-23 13:55:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2018-07-23 13:55:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 438 transitions. [2018-07-23 13:55:46,251 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 438 transitions. Word has length 435 [2018-07-23 13:55:46,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:46,251 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 438 transitions. [2018-07-23 13:55:46,252 INFO L472 AbstractCegarLoop]: Interpolant automaton has 219 states. [2018-07-23 13:55:46,252 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 438 transitions. [2018-07-23 13:55:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-07-23 13:55:46,253 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:46,253 INFO L357 BasicCegarLoop]: trace histogram [218, 217, 1, 1] [2018-07-23 13:55:46,253 INFO L414 AbstractCegarLoop]: === Iteration 218 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:46,253 INFO L82 PathProgramCache]: Analyzing trace with hash 212890322, now seen corresponding path program 217 times [2018-07-23 13:55:46,253 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 47306 backedges. 0 proven. 47306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,298 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:48,298 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [218] total 218 [2018-07-23 13:55:48,298 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,299 INFO L185 omatonBuilderFactory]: Interpolants [217231#(<= (+ main_offset 1048) main_length), 217230#false, 217229#true, 217235#(<= (+ main_offset 1032) main_length), 217234#(<= (+ main_offset 1036) main_length), 217233#(<= (+ main_offset 1040) main_length), 217232#(<= (+ main_offset 1044) main_length), 217239#(<= (+ main_offset 1016) main_length), 217238#(<= (+ main_offset 1020) main_length), 217237#(<= (+ main_offset 1024) main_length), 217236#(<= (+ main_offset 1028) main_length), 217243#(<= (+ main_offset 1000) main_length), 217242#(<= (+ main_offset 1004) main_length), 217241#(<= (+ main_offset 1008) main_length), 217240#(<= (+ main_offset 1012) main_length), 217247#(<= (+ main_offset 984) main_length), 217246#(<= (+ main_offset 988) main_length), 217245#(<= (+ main_offset 992) main_length), 217244#(<= (+ main_offset 996) main_length), 217251#(<= (+ main_offset 968) main_length), 217250#(<= (+ main_offset 972) main_length), 217249#(<= (+ main_offset 976) main_length), 217248#(<= (+ main_offset 980) main_length), 217255#(<= (+ main_offset 952) main_length), 217254#(<= (+ main_offset 956) main_length), 217253#(<= (+ main_offset 960) main_length), 217252#(<= (+ main_offset 964) main_length), 217259#(<= (+ main_offset 936) main_length), 217258#(<= (+ main_offset 940) main_length), 217257#(<= (+ main_offset 944) main_length), 217256#(<= (+ main_offset 948) main_length), 217263#(<= (+ main_offset 920) main_length), 217262#(<= (+ main_offset 924) main_length), 217261#(<= (+ main_offset 928) main_length), 217260#(<= (+ main_offset 932) main_length), 217267#(<= (+ main_offset 904) main_length), 217266#(<= (+ main_offset 908) main_length), 217265#(<= (+ main_offset 912) main_length), 217264#(<= (+ main_offset 916) main_length), 217271#(<= (+ main_offset 888) main_length), 217270#(<= (+ main_offset 892) main_length), 217269#(<= (+ main_offset 896) main_length), 217268#(<= (+ main_offset 900) main_length), 217275#(<= (+ main_offset 872) main_length), 217274#(<= (+ main_offset 876) main_length), 217273#(<= (+ main_offset 880) main_length), 217272#(<= (+ main_offset 884) main_length), 217279#(<= (+ main_offset 856) main_length), 217278#(<= (+ main_offset 860) main_length), 217277#(<= (+ main_offset 864) main_length), 217276#(<= (+ main_offset 868) main_length), 217283#(<= (+ main_offset 840) main_length), 217282#(<= (+ main_offset 844) main_length), 217281#(<= (+ main_offset 848) main_length), 217280#(<= (+ main_offset 852) main_length), 217287#(<= (+ main_offset 824) main_length), 217286#(<= (+ main_offset 828) main_length), 217285#(<= (+ main_offset 832) main_length), 217284#(<= (+ main_offset 836) main_length), 217291#(<= (+ main_offset 808) main_length), 217290#(<= (+ main_offset 812) main_length), 217289#(<= (+ main_offset 816) main_length), 217288#(<= (+ main_offset 820) main_length), 217295#(<= (+ main_offset 792) main_length), 217294#(<= (+ main_offset 796) main_length), 217293#(<= (+ main_offset 800) main_length), 217292#(<= (+ main_offset 804) main_length), 217299#(<= (+ main_offset 776) main_length), 217298#(<= (+ main_offset 780) main_length), 217297#(<= (+ main_offset 784) main_length), 217296#(<= (+ main_offset 788) main_length), 217303#(<= (+ main_offset 760) main_length), 217302#(<= (+ main_offset 764) main_length), 217301#(<= (+ main_offset 768) main_length), 217300#(<= (+ main_offset 772) main_length), 217307#(<= (+ main_offset 744) main_length), 217306#(<= (+ main_offset 748) main_length), 217305#(<= (+ main_offset 752) main_length), 217304#(<= (+ main_offset 756) main_length), 217311#(<= (+ main_offset 728) main_length), 217310#(<= (+ main_offset 732) main_length), 217309#(<= (+ main_offset 736) main_length), 217308#(<= (+ main_offset 740) main_length), 217315#(<= (+ main_offset 712) main_length), 217314#(<= (+ main_offset 716) main_length), 217313#(<= (+ main_offset 720) main_length), 217312#(<= (+ main_offset 724) main_length), 217319#(<= (+ main_offset 696) main_length), 217318#(<= (+ main_offset 700) main_length), 217317#(<= (+ main_offset 704) main_length), 217316#(<= (+ main_offset 708) main_length), 217323#(<= (+ main_offset 680) main_length), 217322#(<= (+ main_offset 684) main_length), 217321#(<= (+ main_offset 688) main_length), 217320#(<= (+ main_offset 692) main_length), 217327#(<= (+ main_offset 664) main_length), 217326#(<= (+ main_offset 668) main_length), 217325#(<= (+ main_offset 672) main_length), 217324#(<= (+ main_offset 676) main_length), 217331#(<= (+ main_offset 648) main_length), 217330#(<= (+ main_offset 652) main_length), 217329#(<= (+ main_offset 656) main_length), 217328#(<= (+ main_offset 660) main_length), 217335#(<= (+ main_offset 632) main_length), 217334#(<= (+ main_offset 636) main_length), 217333#(<= (+ main_offset 640) main_length), 217332#(<= (+ main_offset 644) main_length), 217339#(<= (+ main_offset 616) main_length), 217338#(<= (+ main_offset 620) main_length), 217337#(<= (+ main_offset 624) main_length), 217336#(<= (+ main_offset 628) main_length), 217343#(<= (+ main_offset 600) main_length), 217342#(<= (+ main_offset 604) main_length), 217341#(<= (+ main_offset 608) main_length), 217340#(<= (+ main_offset 612) main_length), 217347#(<= (+ main_offset 584) main_length), 217346#(<= (+ main_offset 588) main_length), 217345#(<= (+ main_offset 592) main_length), 217344#(<= (+ main_offset 596) main_length), 217351#(<= (+ main_offset 568) main_length), 217350#(<= (+ main_offset 572) main_length), 217349#(<= (+ main_offset 576) main_length), 217348#(<= (+ main_offset 580) main_length), 217355#(<= (+ main_offset 552) main_length), 217354#(<= (+ main_offset 556) main_length), 217353#(<= (+ main_offset 560) main_length), 217352#(<= (+ main_offset 564) main_length), 217359#(<= (+ main_offset 536) main_length), 217358#(<= (+ main_offset 540) main_length), 217357#(<= (+ main_offset 544) main_length), 217356#(<= (+ main_offset 548) main_length), 217363#(<= (+ main_offset 520) main_length), 217362#(<= (+ main_offset 524) main_length), 217361#(<= (+ main_offset 528) main_length), 217360#(<= (+ main_offset 532) main_length), 217367#(<= (+ main_offset 504) main_length), 217366#(<= (+ main_offset 508) main_length), 217365#(<= (+ main_offset 512) main_length), 217364#(<= (+ main_offset 516) main_length), 217371#(<= (+ main_offset 488) main_length), 217370#(<= (+ main_offset 492) main_length), 217369#(<= (+ main_offset 496) main_length), 217368#(<= (+ main_offset 500) main_length), 217375#(<= (+ main_offset 472) main_length), 217374#(<= (+ main_offset 476) main_length), 217373#(<= (+ main_offset 480) main_length), 217372#(<= (+ main_offset 484) main_length), 217379#(<= (+ main_offset 456) main_length), 217378#(<= (+ main_offset 460) main_length), 217377#(<= (+ main_offset 464) main_length), 217376#(<= (+ main_offset 468) main_length), 217383#(<= (+ main_offset 440) main_length), 217382#(<= (+ main_offset 444) main_length), 217381#(<= (+ main_offset 448) main_length), 217380#(<= (+ main_offset 452) main_length), 217387#(<= (+ main_offset 424) main_length), 217386#(<= (+ main_offset 428) main_length), 217385#(<= (+ main_offset 432) main_length), 217384#(<= (+ main_offset 436) main_length), 217391#(<= (+ main_offset 408) main_length), 217390#(<= (+ main_offset 412) main_length), 217389#(<= (+ main_offset 416) main_length), 217388#(<= (+ main_offset 420) main_length), 217395#(<= (+ main_offset 392) main_length), 217394#(<= (+ main_offset 396) main_length), 217393#(<= (+ main_offset 400) main_length), 217392#(<= (+ main_offset 404) main_length), 217399#(<= (+ main_offset 376) main_length), 217398#(<= (+ main_offset 380) main_length), 217397#(<= (+ main_offset 384) main_length), 217396#(<= (+ main_offset 388) main_length), 217403#(<= (+ main_offset 360) main_length), 217402#(<= (+ main_offset 364) main_length), 217401#(<= (+ main_offset 368) main_length), 217400#(<= (+ main_offset 372) main_length), 217407#(<= (+ main_offset 344) main_length), 217406#(<= (+ main_offset 348) main_length), 217405#(<= (+ main_offset 352) main_length), 217404#(<= (+ main_offset 356) main_length), 217411#(<= (+ main_offset 328) main_length), 217410#(<= (+ main_offset 332) main_length), 217409#(<= (+ main_offset 336) main_length), 217408#(<= (+ main_offset 340) main_length), 217415#(<= (+ main_offset 312) main_length), 217414#(<= (+ main_offset 316) main_length), 217413#(<= (+ main_offset 320) main_length), 217412#(<= (+ main_offset 324) main_length), 217419#(<= (+ main_offset 296) main_length), 217418#(<= (+ main_offset 300) main_length), 217417#(<= (+ main_offset 304) main_length), 217416#(<= (+ main_offset 308) main_length), 217423#(<= (+ main_offset 280) main_length), 217422#(<= (+ main_offset 284) main_length), 217421#(<= (+ main_offset 288) main_length), 217420#(<= (+ main_offset 292) main_length), 217427#(<= (+ main_offset 264) main_length), 217426#(<= (+ main_offset 268) main_length), 217425#(<= (+ main_offset 272) main_length), 217424#(<= (+ main_offset 276) main_length), 217431#(<= (+ main_offset 248) main_length), 217430#(<= (+ main_offset 252) main_length), 217429#(<= (+ main_offset 256) main_length), 217428#(<= (+ main_offset 260) main_length), 217435#(<= (+ main_offset 232) main_length), 217434#(<= (+ main_offset 236) main_length), 217433#(<= (+ main_offset 240) main_length), 217432#(<= (+ main_offset 244) main_length), 217439#(<= (+ main_offset 216) main_length), 217438#(<= (+ main_offset 220) main_length), 217437#(<= (+ main_offset 224) main_length), 217436#(<= (+ main_offset 228) main_length), 217443#(<= (+ main_offset 200) main_length), 217442#(<= (+ main_offset 204) main_length), 217441#(<= (+ main_offset 208) main_length), 217440#(<= (+ main_offset 212) main_length), 217447#(<= (+ main_offset 184) main_length), 217446#(<= (+ main_offset 188) main_length), 217445#(<= (+ main_offset 192) main_length), 217444#(<= (+ main_offset 196) main_length), 217448#(<= (+ main_offset 180) main_length)] [2018-07-23 13:55:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 47306 backedges. 0 proven. 47306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:48,302 INFO L450 AbstractCegarLoop]: Interpolant automaton has 220 states [2018-07-23 13:55:48,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 220 interpolants. [2018-07-23 13:55:48,308 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24090, Invalid=24090, Unknown=0, NotChecked=0, Total=48180 [2018-07-23 13:55:48,308 INFO L87 Difference]: Start difference. First operand 438 states and 438 transitions. Second operand 220 states. [2018-07-23 13:55:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:49,853 INFO L93 Difference]: Finished difference Result 441 states and 441 transitions. [2018-07-23 13:55:49,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 220 states. [2018-07-23 13:55:49,853 INFO L78 Accepts]: Start accepts. Automaton has 220 states. Word has length 437 [2018-07-23 13:55:49,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:49,854 INFO L225 Difference]: With dead ends: 441 [2018-07-23 13:55:49,854 INFO L226 Difference]: Without dead ends: 440 [2018-07-23 13:55:49,856 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24090, Invalid=24090, Unknown=0, NotChecked=0, Total=48180 [2018-07-23 13:55:49,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2018-07-23 13:55:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2018-07-23 13:55:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2018-07-23 13:55:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 440 transitions. [2018-07-23 13:55:49,862 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 440 transitions. Word has length 437 [2018-07-23 13:55:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:49,862 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 440 transitions. [2018-07-23 13:55:49,862 INFO L472 AbstractCegarLoop]: Interpolant automaton has 220 states. [2018-07-23 13:55:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 440 transitions. [2018-07-23 13:55:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-07-23 13:55:49,863 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:49,863 INFO L357 BasicCegarLoop]: trace histogram [219, 218, 1, 1] [2018-07-23 13:55:49,863 INFO L414 AbstractCegarLoop]: === Iteration 219 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:49,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1570829676, now seen corresponding path program 218 times [2018-07-23 13:55:49,864 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 47742 backedges. 0 proven. 47742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,927 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:51,927 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [219] total 219 [2018-07-23 13:55:51,927 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,928 INFO L185 omatonBuilderFactory]: Interpolants [219211#true, 219215#(<= (+ main_offset 1040) main_length), 219214#(<= (+ main_offset 1044) main_length), 219213#(<= (+ main_offset 1048) main_length), 219212#false, 219219#(<= (+ main_offset 1024) main_length), 219218#(<= (+ main_offset 1028) main_length), 219217#(<= (+ main_offset 1032) main_length), 219216#(<= (+ main_offset 1036) main_length), 219223#(<= (+ main_offset 1008) main_length), 219222#(<= (+ main_offset 1012) main_length), 219221#(<= (+ main_offset 1016) main_length), 219220#(<= (+ main_offset 1020) main_length), 219227#(<= (+ main_offset 992) main_length), 219226#(<= (+ main_offset 996) main_length), 219225#(<= (+ main_offset 1000) main_length), 219224#(<= (+ main_offset 1004) main_length), 219231#(<= (+ main_offset 976) main_length), 219230#(<= (+ main_offset 980) main_length), 219229#(<= (+ main_offset 984) main_length), 219228#(<= (+ main_offset 988) main_length), 219235#(<= (+ main_offset 960) main_length), 219234#(<= (+ main_offset 964) main_length), 219233#(<= (+ main_offset 968) main_length), 219232#(<= (+ main_offset 972) main_length), 219239#(<= (+ main_offset 944) main_length), 219238#(<= (+ main_offset 948) main_length), 219237#(<= (+ main_offset 952) main_length), 219236#(<= (+ main_offset 956) main_length), 219243#(<= (+ main_offset 928) main_length), 219242#(<= (+ main_offset 932) main_length), 219241#(<= (+ main_offset 936) main_length), 219240#(<= (+ main_offset 940) main_length), 219247#(<= (+ main_offset 912) main_length), 219246#(<= (+ main_offset 916) main_length), 219245#(<= (+ main_offset 920) main_length), 219244#(<= (+ main_offset 924) main_length), 219251#(<= (+ main_offset 896) main_length), 219250#(<= (+ main_offset 900) main_length), 219249#(<= (+ main_offset 904) main_length), 219248#(<= (+ main_offset 908) main_length), 219255#(<= (+ main_offset 880) main_length), 219254#(<= (+ main_offset 884) main_length), 219253#(<= (+ main_offset 888) main_length), 219252#(<= (+ main_offset 892) main_length), 219259#(<= (+ main_offset 864) main_length), 219258#(<= (+ main_offset 868) main_length), 219257#(<= (+ main_offset 872) main_length), 219256#(<= (+ main_offset 876) main_length), 219263#(<= (+ main_offset 848) main_length), 219262#(<= (+ main_offset 852) main_length), 219261#(<= (+ main_offset 856) main_length), 219260#(<= (+ main_offset 860) main_length), 219267#(<= (+ main_offset 832) main_length), 219266#(<= (+ main_offset 836) main_length), 219265#(<= (+ main_offset 840) main_length), 219264#(<= (+ main_offset 844) main_length), 219271#(<= (+ main_offset 816) main_length), 219270#(<= (+ main_offset 820) main_length), 219269#(<= (+ main_offset 824) main_length), 219268#(<= (+ main_offset 828) main_length), 219275#(<= (+ main_offset 800) main_length), 219274#(<= (+ main_offset 804) main_length), 219273#(<= (+ main_offset 808) main_length), 219272#(<= (+ main_offset 812) main_length), 219279#(<= (+ main_offset 784) main_length), 219278#(<= (+ main_offset 788) main_length), 219277#(<= (+ main_offset 792) main_length), 219276#(<= (+ main_offset 796) main_length), 219283#(<= (+ main_offset 768) main_length), 219282#(<= (+ main_offset 772) main_length), 219281#(<= (+ main_offset 776) main_length), 219280#(<= (+ main_offset 780) main_length), 219287#(<= (+ main_offset 752) main_length), 219286#(<= (+ main_offset 756) main_length), 219285#(<= (+ main_offset 760) main_length), 219284#(<= (+ main_offset 764) main_length), 219291#(<= (+ main_offset 736) main_length), 219290#(<= (+ main_offset 740) main_length), 219289#(<= (+ main_offset 744) main_length), 219288#(<= (+ main_offset 748) main_length), 219295#(<= (+ main_offset 720) main_length), 219294#(<= (+ main_offset 724) main_length), 219293#(<= (+ main_offset 728) main_length), 219292#(<= (+ main_offset 732) main_length), 219299#(<= (+ main_offset 704) main_length), 219298#(<= (+ main_offset 708) main_length), 219297#(<= (+ main_offset 712) main_length), 219296#(<= (+ main_offset 716) main_length), 219303#(<= (+ main_offset 688) main_length), 219302#(<= (+ main_offset 692) main_length), 219301#(<= (+ main_offset 696) main_length), 219300#(<= (+ main_offset 700) main_length), 219307#(<= (+ main_offset 672) main_length), 219306#(<= (+ main_offset 676) main_length), 219305#(<= (+ main_offset 680) main_length), 219304#(<= (+ main_offset 684) main_length), 219311#(<= (+ main_offset 656) main_length), 219310#(<= (+ main_offset 660) main_length), 219309#(<= (+ main_offset 664) main_length), 219308#(<= (+ main_offset 668) main_length), 219315#(<= (+ main_offset 640) main_length), 219314#(<= (+ main_offset 644) main_length), 219313#(<= (+ main_offset 648) main_length), 219312#(<= (+ main_offset 652) main_length), 219319#(<= (+ main_offset 624) main_length), 219318#(<= (+ main_offset 628) main_length), 219317#(<= (+ main_offset 632) main_length), 219316#(<= (+ main_offset 636) main_length), 219323#(<= (+ main_offset 608) main_length), 219322#(<= (+ main_offset 612) main_length), 219321#(<= (+ main_offset 616) main_length), 219320#(<= (+ main_offset 620) main_length), 219327#(<= (+ main_offset 592) main_length), 219326#(<= (+ main_offset 596) main_length), 219325#(<= (+ main_offset 600) main_length), 219324#(<= (+ main_offset 604) main_length), 219331#(<= (+ main_offset 576) main_length), 219330#(<= (+ main_offset 580) main_length), 219329#(<= (+ main_offset 584) main_length), 219328#(<= (+ main_offset 588) main_length), 219335#(<= (+ main_offset 560) main_length), 219334#(<= (+ main_offset 564) main_length), 219333#(<= (+ main_offset 568) main_length), 219332#(<= (+ main_offset 572) main_length), 219339#(<= (+ main_offset 544) main_length), 219338#(<= (+ main_offset 548) main_length), 219337#(<= (+ main_offset 552) main_length), 219336#(<= (+ main_offset 556) main_length), 219343#(<= (+ main_offset 528) main_length), 219342#(<= (+ main_offset 532) main_length), 219341#(<= (+ main_offset 536) main_length), 219340#(<= (+ main_offset 540) main_length), 219347#(<= (+ main_offset 512) main_length), 219346#(<= (+ main_offset 516) main_length), 219345#(<= (+ main_offset 520) main_length), 219344#(<= (+ main_offset 524) main_length), 219351#(<= (+ main_offset 496) main_length), 219350#(<= (+ main_offset 500) main_length), 219349#(<= (+ main_offset 504) main_length), 219348#(<= (+ main_offset 508) main_length), 219355#(<= (+ main_offset 480) main_length), 219354#(<= (+ main_offset 484) main_length), 219353#(<= (+ main_offset 488) main_length), 219352#(<= (+ main_offset 492) main_length), 219359#(<= (+ main_offset 464) main_length), 219358#(<= (+ main_offset 468) main_length), 219357#(<= (+ main_offset 472) main_length), 219356#(<= (+ main_offset 476) main_length), 219363#(<= (+ main_offset 448) main_length), 219362#(<= (+ main_offset 452) main_length), 219361#(<= (+ main_offset 456) main_length), 219360#(<= (+ main_offset 460) main_length), 219367#(<= (+ main_offset 432) main_length), 219366#(<= (+ main_offset 436) main_length), 219365#(<= (+ main_offset 440) main_length), 219364#(<= (+ main_offset 444) main_length), 219371#(<= (+ main_offset 416) main_length), 219370#(<= (+ main_offset 420) main_length), 219369#(<= (+ main_offset 424) main_length), 219368#(<= (+ main_offset 428) main_length), 219375#(<= (+ main_offset 400) main_length), 219374#(<= (+ main_offset 404) main_length), 219373#(<= (+ main_offset 408) main_length), 219372#(<= (+ main_offset 412) main_length), 219379#(<= (+ main_offset 384) main_length), 219378#(<= (+ main_offset 388) main_length), 219377#(<= (+ main_offset 392) main_length), 219376#(<= (+ main_offset 396) main_length), 219383#(<= (+ main_offset 368) main_length), 219382#(<= (+ main_offset 372) main_length), 219381#(<= (+ main_offset 376) main_length), 219380#(<= (+ main_offset 380) main_length), 219387#(<= (+ main_offset 352) main_length), 219386#(<= (+ main_offset 356) main_length), 219385#(<= (+ main_offset 360) main_length), 219384#(<= (+ main_offset 364) main_length), 219391#(<= (+ main_offset 336) main_length), 219390#(<= (+ main_offset 340) main_length), 219389#(<= (+ main_offset 344) main_length), 219388#(<= (+ main_offset 348) main_length), 219395#(<= (+ main_offset 320) main_length), 219394#(<= (+ main_offset 324) main_length), 219393#(<= (+ main_offset 328) main_length), 219392#(<= (+ main_offset 332) main_length), 219399#(<= (+ main_offset 304) main_length), 219398#(<= (+ main_offset 308) main_length), 219397#(<= (+ main_offset 312) main_length), 219396#(<= (+ main_offset 316) main_length), 219403#(<= (+ main_offset 288) main_length), 219402#(<= (+ main_offset 292) main_length), 219401#(<= (+ main_offset 296) main_length), 219400#(<= (+ main_offset 300) main_length), 219407#(<= (+ main_offset 272) main_length), 219406#(<= (+ main_offset 276) main_length), 219405#(<= (+ main_offset 280) main_length), 219404#(<= (+ main_offset 284) main_length), 219411#(<= (+ main_offset 256) main_length), 219410#(<= (+ main_offset 260) main_length), 219409#(<= (+ main_offset 264) main_length), 219408#(<= (+ main_offset 268) main_length), 219415#(<= (+ main_offset 240) main_length), 219414#(<= (+ main_offset 244) main_length), 219413#(<= (+ main_offset 248) main_length), 219412#(<= (+ main_offset 252) main_length), 219419#(<= (+ main_offset 224) main_length), 219418#(<= (+ main_offset 228) main_length), 219417#(<= (+ main_offset 232) main_length), 219416#(<= (+ main_offset 236) main_length), 219423#(<= (+ main_offset 208) main_length), 219422#(<= (+ main_offset 212) main_length), 219421#(<= (+ main_offset 216) main_length), 219420#(<= (+ main_offset 220) main_length), 219427#(<= (+ main_offset 192) main_length), 219426#(<= (+ main_offset 196) main_length), 219425#(<= (+ main_offset 200) main_length), 219424#(<= (+ main_offset 204) main_length), 219431#(<= (+ main_offset 176) main_length), 219430#(<= (+ main_offset 180) main_length), 219429#(<= (+ main_offset 184) main_length), 219428#(<= (+ main_offset 188) main_length)] [2018-07-23 13:55:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 47742 backedges. 0 proven. 47742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:51,930 INFO L450 AbstractCegarLoop]: Interpolant automaton has 221 states [2018-07-23 13:55:51,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 221 interpolants. [2018-07-23 13:55:51,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24310, Invalid=24310, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:55:51,935 INFO L87 Difference]: Start difference. First operand 440 states and 440 transitions. Second operand 221 states. [2018-07-23 13:55:54,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:54,321 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2018-07-23 13:55:54,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2018-07-23 13:55:54,321 INFO L78 Accepts]: Start accepts. Automaton has 221 states. Word has length 439 [2018-07-23 13:55:54,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:54,322 INFO L225 Difference]: With dead ends: 443 [2018-07-23 13:55:54,322 INFO L226 Difference]: Without dead ends: 442 [2018-07-23 13:55:54,324 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24310, Invalid=24310, Unknown=0, NotChecked=0, Total=48620 [2018-07-23 13:55:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2018-07-23 13:55:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2018-07-23 13:55:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-07-23 13:55:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 442 transitions. [2018-07-23 13:55:54,329 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 442 transitions. Word has length 439 [2018-07-23 13:55:54,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:54,329 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 442 transitions. [2018-07-23 13:55:54,329 INFO L472 AbstractCegarLoop]: Interpolant automaton has 221 states. [2018-07-23 13:55:54,329 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 442 transitions. [2018-07-23 13:55:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-07-23 13:55:54,331 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:54,331 INFO L357 BasicCegarLoop]: trace histogram [220, 219, 1, 1] [2018-07-23 13:55:54,331 INFO L414 AbstractCegarLoop]: === Iteration 220 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:54,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2033796650, now seen corresponding path program 219 times [2018-07-23 13:55:54,331 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:55:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 48180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,288 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:55:56,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [220] total 220 [2018-07-23 13:55:56,288 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:55:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,289 INFO L185 omatonBuilderFactory]: Interpolants [221203#false, 221202#true, 221207#(<= (+ main_offset 1036) main_length), 221206#(<= (+ main_offset 1040) main_length), 221205#(<= (+ main_offset 1044) main_length), 221204#(<= (+ main_offset 1048) main_length), 221211#(<= (+ main_offset 1020) main_length), 221210#(<= (+ main_offset 1024) main_length), 221209#(<= (+ main_offset 1028) main_length), 221208#(<= (+ main_offset 1032) main_length), 221215#(<= (+ main_offset 1004) main_length), 221214#(<= (+ main_offset 1008) main_length), 221213#(<= (+ main_offset 1012) main_length), 221212#(<= (+ main_offset 1016) main_length), 221219#(<= (+ main_offset 988) main_length), 221218#(<= (+ main_offset 992) main_length), 221217#(<= (+ main_offset 996) main_length), 221216#(<= (+ main_offset 1000) main_length), 221223#(<= (+ main_offset 972) main_length), 221222#(<= (+ main_offset 976) main_length), 221221#(<= (+ main_offset 980) main_length), 221220#(<= (+ main_offset 984) main_length), 221227#(<= (+ main_offset 956) main_length), 221226#(<= (+ main_offset 960) main_length), 221225#(<= (+ main_offset 964) main_length), 221224#(<= (+ main_offset 968) main_length), 221231#(<= (+ main_offset 940) main_length), 221230#(<= (+ main_offset 944) main_length), 221229#(<= (+ main_offset 948) main_length), 221228#(<= (+ main_offset 952) main_length), 221235#(<= (+ main_offset 924) main_length), 221234#(<= (+ main_offset 928) main_length), 221233#(<= (+ main_offset 932) main_length), 221232#(<= (+ main_offset 936) main_length), 221239#(<= (+ main_offset 908) main_length), 221238#(<= (+ main_offset 912) main_length), 221237#(<= (+ main_offset 916) main_length), 221236#(<= (+ main_offset 920) main_length), 221243#(<= (+ main_offset 892) main_length), 221242#(<= (+ main_offset 896) main_length), 221241#(<= (+ main_offset 900) main_length), 221240#(<= (+ main_offset 904) main_length), 221247#(<= (+ main_offset 876) main_length), 221246#(<= (+ main_offset 880) main_length), 221245#(<= (+ main_offset 884) main_length), 221244#(<= (+ main_offset 888) main_length), 221251#(<= (+ main_offset 860) main_length), 221250#(<= (+ main_offset 864) main_length), 221249#(<= (+ main_offset 868) main_length), 221248#(<= (+ main_offset 872) main_length), 221255#(<= (+ main_offset 844) main_length), 221254#(<= (+ main_offset 848) main_length), 221253#(<= (+ main_offset 852) main_length), 221252#(<= (+ main_offset 856) main_length), 221259#(<= (+ main_offset 828) main_length), 221258#(<= (+ main_offset 832) main_length), 221257#(<= (+ main_offset 836) main_length), 221256#(<= (+ main_offset 840) main_length), 221263#(<= (+ main_offset 812) main_length), 221262#(<= (+ main_offset 816) main_length), 221261#(<= (+ main_offset 820) main_length), 221260#(<= (+ main_offset 824) main_length), 221267#(<= (+ main_offset 796) main_length), 221266#(<= (+ main_offset 800) main_length), 221265#(<= (+ main_offset 804) main_length), 221264#(<= (+ main_offset 808) main_length), 221271#(<= (+ main_offset 780) main_length), 221270#(<= (+ main_offset 784) main_length), 221269#(<= (+ main_offset 788) main_length), 221268#(<= (+ main_offset 792) main_length), 221275#(<= (+ main_offset 764) main_length), 221274#(<= (+ main_offset 768) main_length), 221273#(<= (+ main_offset 772) main_length), 221272#(<= (+ main_offset 776) main_length), 221279#(<= (+ main_offset 748) main_length), 221278#(<= (+ main_offset 752) main_length), 221277#(<= (+ main_offset 756) main_length), 221276#(<= (+ main_offset 760) main_length), 221283#(<= (+ main_offset 732) main_length), 221282#(<= (+ main_offset 736) main_length), 221281#(<= (+ main_offset 740) main_length), 221280#(<= (+ main_offset 744) main_length), 221287#(<= (+ main_offset 716) main_length), 221286#(<= (+ main_offset 720) main_length), 221285#(<= (+ main_offset 724) main_length), 221284#(<= (+ main_offset 728) main_length), 221291#(<= (+ main_offset 700) main_length), 221290#(<= (+ main_offset 704) main_length), 221289#(<= (+ main_offset 708) main_length), 221288#(<= (+ main_offset 712) main_length), 221295#(<= (+ main_offset 684) main_length), 221294#(<= (+ main_offset 688) main_length), 221293#(<= (+ main_offset 692) main_length), 221292#(<= (+ main_offset 696) main_length), 221299#(<= (+ main_offset 668) main_length), 221298#(<= (+ main_offset 672) main_length), 221297#(<= (+ main_offset 676) main_length), 221296#(<= (+ main_offset 680) main_length), 221303#(<= (+ main_offset 652) main_length), 221302#(<= (+ main_offset 656) main_length), 221301#(<= (+ main_offset 660) main_length), 221300#(<= (+ main_offset 664) main_length), 221307#(<= (+ main_offset 636) main_length), 221306#(<= (+ main_offset 640) main_length), 221305#(<= (+ main_offset 644) main_length), 221304#(<= (+ main_offset 648) main_length), 221311#(<= (+ main_offset 620) main_length), 221310#(<= (+ main_offset 624) main_length), 221309#(<= (+ main_offset 628) main_length), 221308#(<= (+ main_offset 632) main_length), 221315#(<= (+ main_offset 604) main_length), 221314#(<= (+ main_offset 608) main_length), 221313#(<= (+ main_offset 612) main_length), 221312#(<= (+ main_offset 616) main_length), 221319#(<= (+ main_offset 588) main_length), 221318#(<= (+ main_offset 592) main_length), 221317#(<= (+ main_offset 596) main_length), 221316#(<= (+ main_offset 600) main_length), 221323#(<= (+ main_offset 572) main_length), 221322#(<= (+ main_offset 576) main_length), 221321#(<= (+ main_offset 580) main_length), 221320#(<= (+ main_offset 584) main_length), 221327#(<= (+ main_offset 556) main_length), 221326#(<= (+ main_offset 560) main_length), 221325#(<= (+ main_offset 564) main_length), 221324#(<= (+ main_offset 568) main_length), 221331#(<= (+ main_offset 540) main_length), 221330#(<= (+ main_offset 544) main_length), 221329#(<= (+ main_offset 548) main_length), 221328#(<= (+ main_offset 552) main_length), 221335#(<= (+ main_offset 524) main_length), 221334#(<= (+ main_offset 528) main_length), 221333#(<= (+ main_offset 532) main_length), 221332#(<= (+ main_offset 536) main_length), 221339#(<= (+ main_offset 508) main_length), 221338#(<= (+ main_offset 512) main_length), 221337#(<= (+ main_offset 516) main_length), 221336#(<= (+ main_offset 520) main_length), 221343#(<= (+ main_offset 492) main_length), 221342#(<= (+ main_offset 496) main_length), 221341#(<= (+ main_offset 500) main_length), 221340#(<= (+ main_offset 504) main_length), 221347#(<= (+ main_offset 476) main_length), 221346#(<= (+ main_offset 480) main_length), 221345#(<= (+ main_offset 484) main_length), 221344#(<= (+ main_offset 488) main_length), 221351#(<= (+ main_offset 460) main_length), 221350#(<= (+ main_offset 464) main_length), 221349#(<= (+ main_offset 468) main_length), 221348#(<= (+ main_offset 472) main_length), 221355#(<= (+ main_offset 444) main_length), 221354#(<= (+ main_offset 448) main_length), 221353#(<= (+ main_offset 452) main_length), 221352#(<= (+ main_offset 456) main_length), 221359#(<= (+ main_offset 428) main_length), 221358#(<= (+ main_offset 432) main_length), 221357#(<= (+ main_offset 436) main_length), 221356#(<= (+ main_offset 440) main_length), 221363#(<= (+ main_offset 412) main_length), 221362#(<= (+ main_offset 416) main_length), 221361#(<= (+ main_offset 420) main_length), 221360#(<= (+ main_offset 424) main_length), 221367#(<= (+ main_offset 396) main_length), 221366#(<= (+ main_offset 400) main_length), 221365#(<= (+ main_offset 404) main_length), 221364#(<= (+ main_offset 408) main_length), 221371#(<= (+ main_offset 380) main_length), 221370#(<= (+ main_offset 384) main_length), 221369#(<= (+ main_offset 388) main_length), 221368#(<= (+ main_offset 392) main_length), 221375#(<= (+ main_offset 364) main_length), 221374#(<= (+ main_offset 368) main_length), 221373#(<= (+ main_offset 372) main_length), 221372#(<= (+ main_offset 376) main_length), 221379#(<= (+ main_offset 348) main_length), 221378#(<= (+ main_offset 352) main_length), 221377#(<= (+ main_offset 356) main_length), 221376#(<= (+ main_offset 360) main_length), 221383#(<= (+ main_offset 332) main_length), 221382#(<= (+ main_offset 336) main_length), 221381#(<= (+ main_offset 340) main_length), 221380#(<= (+ main_offset 344) main_length), 221387#(<= (+ main_offset 316) main_length), 221386#(<= (+ main_offset 320) main_length), 221385#(<= (+ main_offset 324) main_length), 221384#(<= (+ main_offset 328) main_length), 221391#(<= (+ main_offset 300) main_length), 221390#(<= (+ main_offset 304) main_length), 221389#(<= (+ main_offset 308) main_length), 221388#(<= (+ main_offset 312) main_length), 221395#(<= (+ main_offset 284) main_length), 221394#(<= (+ main_offset 288) main_length), 221393#(<= (+ main_offset 292) main_length), 221392#(<= (+ main_offset 296) main_length), 221399#(<= (+ main_offset 268) main_length), 221398#(<= (+ main_offset 272) main_length), 221397#(<= (+ main_offset 276) main_length), 221396#(<= (+ main_offset 280) main_length), 221403#(<= (+ main_offset 252) main_length), 221402#(<= (+ main_offset 256) main_length), 221401#(<= (+ main_offset 260) main_length), 221400#(<= (+ main_offset 264) main_length), 221407#(<= (+ main_offset 236) main_length), 221406#(<= (+ main_offset 240) main_length), 221405#(<= (+ main_offset 244) main_length), 221404#(<= (+ main_offset 248) main_length), 221411#(<= (+ main_offset 220) main_length), 221410#(<= (+ main_offset 224) main_length), 221409#(<= (+ main_offset 228) main_length), 221408#(<= (+ main_offset 232) main_length), 221415#(<= (+ main_offset 204) main_length), 221414#(<= (+ main_offset 208) main_length), 221413#(<= (+ main_offset 212) main_length), 221412#(<= (+ main_offset 216) main_length), 221419#(<= (+ main_offset 188) main_length), 221418#(<= (+ main_offset 192) main_length), 221417#(<= (+ main_offset 196) main_length), 221416#(<= (+ main_offset 200) main_length), 221423#(<= (+ main_offset 172) main_length), 221422#(<= (+ main_offset 176) main_length), 221421#(<= (+ main_offset 180) main_length), 221420#(<= (+ main_offset 184) main_length)] [2018-07-23 13:55:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 48180 backedges. 0 proven. 48180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:55:56,291 INFO L450 AbstractCegarLoop]: Interpolant automaton has 222 states [2018-07-23 13:55:56,293 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 222 interpolants. [2018-07-23 13:55:56,294 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24531, Invalid=24531, Unknown=0, NotChecked=0, Total=49062 [2018-07-23 13:55:56,294 INFO L87 Difference]: Start difference. First operand 442 states and 442 transitions. Second operand 222 states. [2018-07-23 13:55:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:55:59,256 INFO L93 Difference]: Finished difference Result 445 states and 445 transitions. [2018-07-23 13:55:59,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2018-07-23 13:55:59,256 INFO L78 Accepts]: Start accepts. Automaton has 222 states. Word has length 441 [2018-07-23 13:55:59,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:55:59,257 INFO L225 Difference]: With dead ends: 445 [2018-07-23 13:55:59,257 INFO L226 Difference]: Without dead ends: 444 [2018-07-23 13:55:59,259 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24531, Invalid=24531, Unknown=0, NotChecked=0, Total=49062 [2018-07-23 13:55:59,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2018-07-23 13:55:59,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2018-07-23 13:55:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2018-07-23 13:55:59,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 444 transitions. [2018-07-23 13:55:59,264 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 444 transitions. Word has length 441 [2018-07-23 13:55:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:55:59,264 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 444 transitions. [2018-07-23 13:55:59,264 INFO L472 AbstractCegarLoop]: Interpolant automaton has 222 states. [2018-07-23 13:55:59,264 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 444 transitions. [2018-07-23 13:55:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2018-07-23 13:55:59,265 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:55:59,265 INFO L357 BasicCegarLoop]: trace histogram [221, 220, 1, 1] [2018-07-23 13:55:59,265 INFO L414 AbstractCegarLoop]: === Iteration 221 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:55:59,266 INFO L82 PathProgramCache]: Analyzing trace with hash -268459880, now seen corresponding path program 220 times [2018-07-23 13:55:59,266 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:55:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:56:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 48620 backedges. 0 proven. 48620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,363 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:56:01,363 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [221] total 221 [2018-07-23 13:56:01,363 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:56:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,364 INFO L185 omatonBuilderFactory]: Interpolants [223235#(<= (+ main_offset 924) main_length), 223234#(<= (+ main_offset 928) main_length), 223233#(<= (+ main_offset 932) main_length), 223232#(<= (+ main_offset 936) main_length), 223239#(<= (+ main_offset 908) main_length), 223238#(<= (+ main_offset 912) main_length), 223237#(<= (+ main_offset 916) main_length), 223236#(<= (+ main_offset 920) main_length), 223243#(<= (+ main_offset 892) main_length), 223242#(<= (+ main_offset 896) main_length), 223241#(<= (+ main_offset 900) main_length), 223240#(<= (+ main_offset 904) main_length), 223247#(<= (+ main_offset 876) main_length), 223246#(<= (+ main_offset 880) main_length), 223245#(<= (+ main_offset 884) main_length), 223244#(<= (+ main_offset 888) main_length), 223251#(<= (+ main_offset 860) main_length), 223250#(<= (+ main_offset 864) main_length), 223249#(<= (+ main_offset 868) main_length), 223248#(<= (+ main_offset 872) main_length), 223255#(<= (+ main_offset 844) main_length), 223254#(<= (+ main_offset 848) main_length), 223253#(<= (+ main_offset 852) main_length), 223252#(<= (+ main_offset 856) main_length), 223259#(<= (+ main_offset 828) main_length), 223258#(<= (+ main_offset 832) main_length), 223257#(<= (+ main_offset 836) main_length), 223256#(<= (+ main_offset 840) main_length), 223263#(<= (+ main_offset 812) main_length), 223262#(<= (+ main_offset 816) main_length), 223261#(<= (+ main_offset 820) main_length), 223260#(<= (+ main_offset 824) main_length), 223267#(<= (+ main_offset 796) main_length), 223266#(<= (+ main_offset 800) main_length), 223265#(<= (+ main_offset 804) main_length), 223264#(<= (+ main_offset 808) main_length), 223271#(<= (+ main_offset 780) main_length), 223270#(<= (+ main_offset 784) main_length), 223269#(<= (+ main_offset 788) main_length), 223268#(<= (+ main_offset 792) main_length), 223275#(<= (+ main_offset 764) main_length), 223274#(<= (+ main_offset 768) main_length), 223273#(<= (+ main_offset 772) main_length), 223272#(<= (+ main_offset 776) main_length), 223279#(<= (+ main_offset 748) main_length), 223278#(<= (+ main_offset 752) main_length), 223277#(<= (+ main_offset 756) main_length), 223276#(<= (+ main_offset 760) main_length), 223283#(<= (+ main_offset 732) main_length), 223282#(<= (+ main_offset 736) main_length), 223281#(<= (+ main_offset 740) main_length), 223280#(<= (+ main_offset 744) main_length), 223287#(<= (+ main_offset 716) main_length), 223286#(<= (+ main_offset 720) main_length), 223285#(<= (+ main_offset 724) main_length), 223284#(<= (+ main_offset 728) main_length), 223291#(<= (+ main_offset 700) main_length), 223290#(<= (+ main_offset 704) main_length), 223289#(<= (+ main_offset 708) main_length), 223288#(<= (+ main_offset 712) main_length), 223295#(<= (+ main_offset 684) main_length), 223294#(<= (+ main_offset 688) main_length), 223293#(<= (+ main_offset 692) main_length), 223292#(<= (+ main_offset 696) main_length), 223299#(<= (+ main_offset 668) main_length), 223298#(<= (+ main_offset 672) main_length), 223297#(<= (+ main_offset 676) main_length), 223296#(<= (+ main_offset 680) main_length), 223303#(<= (+ main_offset 652) main_length), 223302#(<= (+ main_offset 656) main_length), 223301#(<= (+ main_offset 660) main_length), 223300#(<= (+ main_offset 664) main_length), 223307#(<= (+ main_offset 636) main_length), 223306#(<= (+ main_offset 640) main_length), 223305#(<= (+ main_offset 644) main_length), 223304#(<= (+ main_offset 648) main_length), 223311#(<= (+ main_offset 620) main_length), 223310#(<= (+ main_offset 624) main_length), 223309#(<= (+ main_offset 628) main_length), 223308#(<= (+ main_offset 632) main_length), 223315#(<= (+ main_offset 604) main_length), 223314#(<= (+ main_offset 608) main_length), 223313#(<= (+ main_offset 612) main_length), 223312#(<= (+ main_offset 616) main_length), 223319#(<= (+ main_offset 588) main_length), 223318#(<= (+ main_offset 592) main_length), 223317#(<= (+ main_offset 596) main_length), 223316#(<= (+ main_offset 600) main_length), 223323#(<= (+ main_offset 572) main_length), 223322#(<= (+ main_offset 576) main_length), 223321#(<= (+ main_offset 580) main_length), 223320#(<= (+ main_offset 584) main_length), 223327#(<= (+ main_offset 556) main_length), 223326#(<= (+ main_offset 560) main_length), 223325#(<= (+ main_offset 564) main_length), 223324#(<= (+ main_offset 568) main_length), 223331#(<= (+ main_offset 540) main_length), 223330#(<= (+ main_offset 544) main_length), 223329#(<= (+ main_offset 548) main_length), 223328#(<= (+ main_offset 552) main_length), 223335#(<= (+ main_offset 524) main_length), 223334#(<= (+ main_offset 528) main_length), 223333#(<= (+ main_offset 532) main_length), 223332#(<= (+ main_offset 536) main_length), 223339#(<= (+ main_offset 508) main_length), 223338#(<= (+ main_offset 512) main_length), 223337#(<= (+ main_offset 516) main_length), 223336#(<= (+ main_offset 520) main_length), 223343#(<= (+ main_offset 492) main_length), 223342#(<= (+ main_offset 496) main_length), 223341#(<= (+ main_offset 500) main_length), 223340#(<= (+ main_offset 504) main_length), 223347#(<= (+ main_offset 476) main_length), 223346#(<= (+ main_offset 480) main_length), 223345#(<= (+ main_offset 484) main_length), 223344#(<= (+ main_offset 488) main_length), 223351#(<= (+ main_offset 460) main_length), 223350#(<= (+ main_offset 464) main_length), 223349#(<= (+ main_offset 468) main_length), 223348#(<= (+ main_offset 472) main_length), 223355#(<= (+ main_offset 444) main_length), 223354#(<= (+ main_offset 448) main_length), 223353#(<= (+ main_offset 452) main_length), 223352#(<= (+ main_offset 456) main_length), 223359#(<= (+ main_offset 428) main_length), 223358#(<= (+ main_offset 432) main_length), 223357#(<= (+ main_offset 436) main_length), 223356#(<= (+ main_offset 440) main_length), 223363#(<= (+ main_offset 412) main_length), 223362#(<= (+ main_offset 416) main_length), 223361#(<= (+ main_offset 420) main_length), 223360#(<= (+ main_offset 424) main_length), 223367#(<= (+ main_offset 396) main_length), 223366#(<= (+ main_offset 400) main_length), 223365#(<= (+ main_offset 404) main_length), 223364#(<= (+ main_offset 408) main_length), 223371#(<= (+ main_offset 380) main_length), 223370#(<= (+ main_offset 384) main_length), 223369#(<= (+ main_offset 388) main_length), 223368#(<= (+ main_offset 392) main_length), 223375#(<= (+ main_offset 364) main_length), 223374#(<= (+ main_offset 368) main_length), 223373#(<= (+ main_offset 372) main_length), 223372#(<= (+ main_offset 376) main_length), 223379#(<= (+ main_offset 348) main_length), 223378#(<= (+ main_offset 352) main_length), 223377#(<= (+ main_offset 356) main_length), 223376#(<= (+ main_offset 360) main_length), 223383#(<= (+ main_offset 332) main_length), 223382#(<= (+ main_offset 336) main_length), 223381#(<= (+ main_offset 340) main_length), 223380#(<= (+ main_offset 344) main_length), 223387#(<= (+ main_offset 316) main_length), 223386#(<= (+ main_offset 320) main_length), 223385#(<= (+ main_offset 324) main_length), 223384#(<= (+ main_offset 328) main_length), 223391#(<= (+ main_offset 300) main_length), 223390#(<= (+ main_offset 304) main_length), 223389#(<= (+ main_offset 308) main_length), 223388#(<= (+ main_offset 312) main_length), 223395#(<= (+ main_offset 284) main_length), 223394#(<= (+ main_offset 288) main_length), 223393#(<= (+ main_offset 292) main_length), 223392#(<= (+ main_offset 296) main_length), 223399#(<= (+ main_offset 268) main_length), 223398#(<= (+ main_offset 272) main_length), 223397#(<= (+ main_offset 276) main_length), 223396#(<= (+ main_offset 280) main_length), 223403#(<= (+ main_offset 252) main_length), 223402#(<= (+ main_offset 256) main_length), 223401#(<= (+ main_offset 260) main_length), 223400#(<= (+ main_offset 264) main_length), 223407#(<= (+ main_offset 236) main_length), 223406#(<= (+ main_offset 240) main_length), 223405#(<= (+ main_offset 244) main_length), 223404#(<= (+ main_offset 248) main_length), 223411#(<= (+ main_offset 220) main_length), 223410#(<= (+ main_offset 224) main_length), 223409#(<= (+ main_offset 228) main_length), 223408#(<= (+ main_offset 232) main_length), 223415#(<= (+ main_offset 204) main_length), 223414#(<= (+ main_offset 208) main_length), 223413#(<= (+ main_offset 212) main_length), 223412#(<= (+ main_offset 216) main_length), 223419#(<= (+ main_offset 188) main_length), 223418#(<= (+ main_offset 192) main_length), 223417#(<= (+ main_offset 196) main_length), 223416#(<= (+ main_offset 200) main_length), 223423#(<= (+ main_offset 172) main_length), 223422#(<= (+ main_offset 176) main_length), 223421#(<= (+ main_offset 180) main_length), 223420#(<= (+ main_offset 184) main_length), 223424#(<= (+ main_offset 168) main_length), 223203#false, 223202#true, 223207#(<= (+ main_offset 1036) main_length), 223206#(<= (+ main_offset 1040) main_length), 223205#(<= (+ main_offset 1044) main_length), 223204#(<= (+ main_offset 1048) main_length), 223211#(<= (+ main_offset 1020) main_length), 223210#(<= (+ main_offset 1024) main_length), 223209#(<= (+ main_offset 1028) main_length), 223208#(<= (+ main_offset 1032) main_length), 223215#(<= (+ main_offset 1004) main_length), 223214#(<= (+ main_offset 1008) main_length), 223213#(<= (+ main_offset 1012) main_length), 223212#(<= (+ main_offset 1016) main_length), 223219#(<= (+ main_offset 988) main_length), 223218#(<= (+ main_offset 992) main_length), 223217#(<= (+ main_offset 996) main_length), 223216#(<= (+ main_offset 1000) main_length), 223223#(<= (+ main_offset 972) main_length), 223222#(<= (+ main_offset 976) main_length), 223221#(<= (+ main_offset 980) main_length), 223220#(<= (+ main_offset 984) main_length), 223227#(<= (+ main_offset 956) main_length), 223226#(<= (+ main_offset 960) main_length), 223225#(<= (+ main_offset 964) main_length), 223224#(<= (+ main_offset 968) main_length), 223231#(<= (+ main_offset 940) main_length), 223230#(<= (+ main_offset 944) main_length), 223229#(<= (+ main_offset 948) main_length), 223228#(<= (+ main_offset 952) main_length)] [2018-07-23 13:56:01,366 INFO L134 CoverageAnalysis]: Checked inductivity of 48620 backedges. 0 proven. 48620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:56:01,366 INFO L450 AbstractCegarLoop]: Interpolant automaton has 223 states [2018-07-23 13:56:01,368 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2018-07-23 13:56:01,369 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24753, Invalid=24753, Unknown=0, NotChecked=0, Total=49506 [2018-07-23 13:56:01,369 INFO L87 Difference]: Start difference. First operand 444 states and 444 transitions. Second operand 223 states. [2018-07-23 13:56:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:56:03,785 INFO L93 Difference]: Finished difference Result 447 states and 447 transitions. [2018-07-23 13:56:03,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2018-07-23 13:56:03,785 INFO L78 Accepts]: Start accepts. Automaton has 223 states. Word has length 443 [2018-07-23 13:56:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:56:03,786 INFO L225 Difference]: With dead ends: 447 [2018-07-23 13:56:03,786 INFO L226 Difference]: Without dead ends: 446 [2018-07-23 13:56:03,787 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=24753, Invalid=24753, Unknown=0, NotChecked=0, Total=49506 [2018-07-23 13:56:03,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-07-23 13:56:03,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2018-07-23 13:56:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 446 states. [2018-07-23 13:56:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2018-07-23 13:56:03,792 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 443 [2018-07-23 13:56:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:56:03,792 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2018-07-23 13:56:03,792 INFO L472 AbstractCegarLoop]: Interpolant automaton has 223 states. [2018-07-23 13:56:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2018-07-23 13:56:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-07-23 13:56:03,794 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:56:03,794 INFO L357 BasicCegarLoop]: trace histogram [222, 221, 1, 1] [2018-07-23 13:56:03,794 INFO L414 AbstractCegarLoop]: === Iteration 222 === [mainErr0AssertViolationASSERT]=== [2018-07-23 13:56:03,794 INFO L82 PathProgramCache]: Analyzing trace with hash -291905830, now seen corresponding path program 221 times [2018-07-23 13:56:03,794 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:56:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-07-23 13:56:04,201 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 13:56:04,206 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 13:56:04,206 INFO L202 PluginConnector]: Adding new model LexIndexValue-Pointer-Reduced.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:56:04 BoogieIcfgContainer [2018-07-23 13:56:04,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:56:04,207 INFO L168 Benchmark]: Toolchain (without parser) took 264399.11 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-23 13:56:04,209 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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 13:56:04,209 INFO L168 Benchmark]: Boogie Preprocessor took 59.33 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 13:56:04,209 INFO L168 Benchmark]: RCFGBuilder took 209.79 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 13:56:04,210 INFO L168 Benchmark]: TraceAbstraction took 264125.73 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 996.9 MB. Max. memory is 7.1 GB. [2018-07-23 13:56:04,212 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 0.25 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 59.33 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 209.79 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 264125.73 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 996.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 16). Cancelled while BasicCegarLoop was analyzing trace of length 446 with TraceHistMax 222, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while NestedInterpolantsBuilder was constructing predicates for 444 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. TIMEOUT Result, 264.0s OverallTime, 222 OverallIterations, 222 TraceHistogramMax, 108.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 443 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 60892 SolverSat, 455 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24531 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24531 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 110.7s Time, 0.4s BasicInterpolantAutomatonTime, BiggestAbstraction: size=446occurred in iteration=221, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/3597880 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 221 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 15.7s SatisfiabilityAnalysisTime, 121.6s InterpolantComputationTime, 49283 NumberOfCodeBlocks, 49283 NumberOfCodeBlocksAsserted, 221 NumberOfCheckSat, 49062 ConstructedInterpolants, 0 QuantifiedInterpolants, 72448220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 221 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3597880 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/LexIndexValue-Pointer-Reduced.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-56-04-221.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/LexIndexValue-Pointer-Reduced.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-56-04-221.csv Completed graceful shutdown